├── .gitignore ├── gyp ├── lib │ ├── libz.a │ ├── zlib.lib │ ├── libpng.dll.a │ ├── libpng.lib │ ├── libz.dll.a │ ├── zlib-bcc.lib │ ├── libpng-bcc.lib │ ├── libpng12.dll.a │ ├── pkgconfig │ │ ├── libpng.pc │ │ └── libpng12.pc │ ├── libpng.la │ ├── libpng12.la │ ├── zlib.def │ └── libpng12.def └── include │ ├── zconf.h │ ├── pngconf.h │ └── libpng12 │ └── pngconf.h ├── .npmignore ├── examples ├── rgba-terminal.dat ├── png-example.js ├── png-example-async.js ├── png-example2.js ├── png-example3.js └── png-example4.js ├── tests ├── push-data │ ├── 01-rgba-80-389-16-7.dat │ ├── 02-rgba-96-390-16-5.dat │ ├── 03-rgba-80-397-32-2.dat │ ├── 04-rgba-96-386-16-10.dat │ ├── 05-rgba-96-397-32-2.dat │ ├── 06-rgba-96-397-32-2.dat │ ├── 08-rgba-112-397-32-2.dat │ ├── 09-rgba-112-389-32-7.dat │ ├── 10-rgba-112-397-32-2.dat │ ├── 12-rgba-128-397-32-2.dat │ ├── 14-rgba-144-397-32-2.dat │ ├── 15-rgba-144-389-16-7.dat │ ├── 16-rgba-144-397-32-2.dat │ ├── 17-rgba-160-393-16-6.dat │ ├── 18-rgba-176-397-16-2.dat │ ├── 19-rgba-160-397-32-2.dat │ ├── 07-rgba-112-386-16-10.dat │ ├── 11-rgba-128-386-16-10.dat │ ├── 13-rgba-144-386-16-10.dat │ └── 20-rgba-176-386-16-10.dat ├── fixed-png-stack.js ├── fixed-png-stack-async.js ├── dynamic-png-stack.js └── dynamic-png-stack-async.js ├── src ├── module.cpp ├── buffer_compat.h ├── common.cpp ├── png_encoder.h ├── png.h ├── common.h ├── fixed_png_stack.h ├── buffer_compat.cpp ├── dynamic_png_stack.h ├── png_encoder.cpp ├── png.cpp ├── fixed_png_stack.cpp └── dynamic_png_stack.cpp ├── package.json ├── wscript ├── binding.gyp ├── discovery ├── png.cc └── png.c ├── experiments └── fbconvert.cpp └── readme.md /.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | /.lock-wscript 3 | -------------------------------------------------------------------------------- /gyp/lib/libz.a: -------------------------------------------------------------------------------- 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https://raw.githubusercontent.com/pkrumins/node-png/HEAD/tests/push-data/20-rgba-176-386-16-10.dat -------------------------------------------------------------------------------- /examples/png-example.js: -------------------------------------------------------------------------------- 1 | var fs = require('fs'); 2 | var sys = require('sys'); 3 | var Png = require('../png').Png; 4 | 5 | var rgba = fs.readFileSync('./rgba-terminal.dat'); 6 | 7 | var png = new Png(rgba, 720, 400, 'rgba'); 8 | var png_image = png.encodeSync(); 9 | 10 | fs.writeFileSync('./png.png', png_image.toString('binary'), 'binary'); 11 | 12 | -------------------------------------------------------------------------------- /src/module.cpp: -------------------------------------------------------------------------------- 1 | #include 2 | 3 | #include "png.h" 4 | #include "fixed_png_stack.h" 5 | #include "dynamic_png_stack.h" 6 | 7 | extern "C" void 8 | init(v8::Handle target) 9 | { 10 | v8::HandleScope scope; 11 | 12 | Png::Initialize(target); 13 | FixedPngStack::Initialize(target); 14 | DynamicPngStack::Initialize(target); 15 | } 16 | 17 | -------------------------------------------------------------------------------- /src/buffer_compat.h: -------------------------------------------------------------------------------- 1 | #ifndef buffer_compat_h 2 | #define buffer_compat_h 3 | 4 | #include 5 | #include 6 | #include 7 | 8 | char *BufferData(node::Buffer *b); 9 | size_t BufferLength(node::Buffer *b); 10 | 11 | char *BufferData(v8::Local buf_obj); 12 | size_t BufferLength(v8::Local buf_obj); 13 | 14 | 15 | #endif // buffer_compat_h 16 | -------------------------------------------------------------------------------- /gyp/lib/pkgconfig/libpng.pc: -------------------------------------------------------------------------------- 1 | prefix=c:/progra~1/libpng 2 | exec_prefix=${prefix} 3 | libdir=${exec_prefix}/lib 4 | includedir=${prefix}/include/libpng12 5 | 6 | Name: libpng 7 | Description: Loads and saves PNG files 8 | Version: 1.2.37 9 | Libs: -L${libdir} -lpng12 10 | Libs.private: -lz -Wl,-s -lz -LD:/Progra~1/GnuWin32/lib -lintl -lwsock32 -lole32 -luuid -lmsvcp60 11 | Cflags: -I${includedir} 12 | -------------------------------------------------------------------------------- /gyp/lib/pkgconfig/libpng12.pc: -------------------------------------------------------------------------------- 1 | prefix=c:/progra~1/libpng 2 | exec_prefix=${prefix} 3 | libdir=${exec_prefix}/lib 4 | includedir=${prefix}/include/libpng12 5 | 6 | Name: libpng 7 | Description: Loads and saves PNG files 8 | Version: 1.2.37 9 | Libs: -L${libdir} -lpng12 10 | Libs.private: -lz -Wl,-s -lz -LD:/Progra~1/GnuWin32/lib -lintl -lwsock32 -lole32 -luuid -lmsvcp60 11 | Cflags: -I${includedir} 12 | -------------------------------------------------------------------------------- /src/common.cpp: -------------------------------------------------------------------------------- 1 | #include 2 | #include 3 | #include "common.h" 4 | 5 | using namespace v8; 6 | 7 | Handle 8 | ErrorException(const char *msg) 9 | { 10 | HandleScope scope; 11 | return Exception::Error(String::New(msg)); 12 | } 13 | 14 | Handle 15 | VException(const char *msg) { 16 | HandleScope scope; 17 | return ThrowException(ErrorException(msg)); 18 | } 19 | 20 | bool str_eq(const char *s1, const char *s2) 21 | { 22 | return strcmp(s1, s2) == 0; 23 | } 24 | 25 | -------------------------------------------------------------------------------- /examples/png-example-async.js: -------------------------------------------------------------------------------- 1 | var fs = require('fs'); 2 | var sys = require('sys'); 3 | var Png = require('png').Png; 4 | var Buffer = require('buffer').Buffer; 5 | 6 | // the rgba-terminal.dat file is 1152000 bytes long. 7 | var rgba = fs.readFileSync('./rgba-terminal.dat'); 8 | 9 | var png = new Png(rgba, 720, 400, 'rgba'); 10 | png.encode(function (data, error) { 11 | if (error) { 12 | console.log('Error: ' + error.toString()); 13 | process.exit(1); 14 | } 15 | fs.writeFileSync('./png-async.png', data.toString('binary'), 'binary'); 16 | }); 17 | 18 | -------------------------------------------------------------------------------- /examples/png-example2.js: -------------------------------------------------------------------------------- 1 | var fs = require('fs'); 2 | var sys = require('sys'); 3 | var Png = require('../png').Png; 4 | var Buffer = require('buffer').Buffer; 5 | 6 | var x = "\x00\x00\x00\x00"; 7 | var o = "\xff\x00\x00\x00"; 8 | 9 | var img = x + o + o + o + o + 10 | o + x + o + o + o + 11 | o + o + x + o + o + 12 | o + o + o + x + o + 13 | o + o + o + o + x; 14 | 15 | var rgba = new Buffer(100); 16 | rgba.write(img, 'binary'); 17 | 18 | var png = new Png(rgba, 5, 5, 'rgba'); 19 | var png_image = png.encodeSync(); 20 | 21 | fs.writeFileSync('./png-5x5.png', png_image.toString('binary'), 'binary'); 22 | 23 | -------------------------------------------------------------------------------- /examples/png-example3.js: -------------------------------------------------------------------------------- 1 | var fs = require('fs'); 2 | var sys = require('sys'); 3 | var Png = require('../png').Png; 4 | var Buffer = require('buffer').Buffer; 5 | 6 | var WIDTH = 400, HEIGHT = 300; 7 | 8 | var rgb = new Buffer(WIDTH*HEIGHT*3); 9 | 10 | for (var i=0; i 5 | 6 | #include "common.h" 7 | 8 | class PngEncoder { 9 | int width, height, bits; 10 | unsigned char *data; 11 | char *png; 12 | unsigned int png_len, mem_len; 13 | buffer_type buf_type; 14 | 15 | public: 16 | PngEncoder(unsigned char *ddata, int width, int hheight, buffer_type bbuf_type, int bbits); 17 | ~PngEncoder(); 18 | 19 | static void png_chunk_producer(png_structp png_ptr, png_bytep data, png_size_t length); 20 | void encode(); 21 | const char *get_png() const; 22 | int get_png_len() const; 23 | }; 24 | 25 | #endif 26 | 27 | -------------------------------------------------------------------------------- /examples/png-example4.js: -------------------------------------------------------------------------------- 1 | /* Demonstrate a 16-bit grayscale image */ 2 | 3 | var fs = require('fs'); 4 | var sys = require('sys'); 5 | var Png = require('../png').Png; 6 | var Buffer = require('buffer').Buffer; 7 | 8 | var WIDTH = 300, HEIGHT = 300; 9 | 10 | var img_buffer = new Buffer(WIDTH*HEIGHT*2); 11 | 12 | for (var i=0; i> 8; 16 | img_buffer[i*WIDTH*2 + j*2 + 1] = val & 0xFF; 17 | } 18 | } 19 | 20 | var png = new Png(img_buffer, WIDTH, HEIGHT, 'gray', 16); 21 | 22 | fs.writeFileSync('./png-gray-gradient-16.png', png.encodeSync().toString('binary'), 'binary'); 23 | 24 | -------------------------------------------------------------------------------- /src/png.h: -------------------------------------------------------------------------------- 1 | #ifndef NODE_PNG_H 2 | #define NODE_PNG_H 3 | 4 | #include 5 | #include 6 | 7 | #include "common.h" 8 | 9 | class Png : public node::ObjectWrap { 10 | int width; 11 | int height; 12 | buffer_type buf_type; 13 | int bits; 14 | 15 | static void UV_PngEncode(uv_work_t *req); 16 | static void UV_PngEncodeAfter(uv_work_t *req); 17 | public: 18 | static void Initialize(v8::Handle target); 19 | Png(int wwidth, int hheight, buffer_type bbuf_type, int bbits); 20 | v8::Handle PngEncodeSync(); 21 | 22 | static v8::Handle New(const v8::Arguments &args); 23 | static v8::Handle PngEncodeSync(const v8::Arguments &args); 24 | static v8::Handle PngEncodeAsync(const v8::Arguments &args); 25 | }; 26 | 27 | #endif 28 | 29 | -------------------------------------------------------------------------------- /tests/fixed-png-stack.js: -------------------------------------------------------------------------------- 1 | var PngLib = require('png'); 2 | var fs = require('fs'); 3 | var sys = require('sys'); 4 | var Buffer = require('buffer').Buffer; 5 | 6 | var pngStack = new PngLib.FixedPngStack(720, 400, 'rgba'); 7 | 8 | function rectDim(fileName) { 9 | var m = fileName.match(/^\d+-rgba-(\d+)-(\d+)-(\d+)-(\d+).dat$/); 10 | var dim = [m[1], m[2], m[3], m[4]].map(function (n) { 11 | return parseInt(n, 10); 12 | }); 13 | return { x: dim[0], y: dim[1], w: dim[2], h: dim[3] } 14 | } 15 | 16 | var files = fs.readdirSync('./push-data'); 17 | 18 | files.forEach(function(file) { 19 | var dim = rectDim(file); 20 | var rgba = fs.readFileSync('./push-data/' + file); 21 | pngStack.push(rgba, dim.x, dim.y, dim.w, dim.h); 22 | }); 23 | 24 | fs.writeFileSync('fixed.png', pngStack.encodeSync().toString('binary'), 'binary'); 25 | 26 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "png", 3 | "version": "3.0.3", 4 | "main":"./build/Release/png", 5 | "description": "A C++ module for node-js that converts an RGB and RGBA buffers to PNG images (in memory).", 6 | "keywords": [ 7 | "png", 8 | "rgb", 9 | "rgba", 10 | "image", 11 | "picture", 12 | "encode" 13 | ], 14 | "author": { 15 | "name": "Peteris Krumins", 16 | "email": "peteris.krumins@gmail.com", 17 | "web": "http://www.catonmat.net", 18 | "twitter": "pkrumins" 19 | }, 20 | "license": { 21 | "type": "MIT" 22 | }, 23 | "repository": { 24 | "type": "git", 25 | "url": "http://github.com/pkrumins/node-png.git" 26 | }, 27 | "directories": { 28 | "examples": "examples", 29 | "src": "src" 30 | }, 31 | "engines": { 32 | "node": ">=0.6.0" 33 | } 34 | } 35 | 36 | -------------------------------------------------------------------------------- /src/common.h: -------------------------------------------------------------------------------- 1 | #ifndef COMMON_H 2 | #define COMMON_H 3 | 4 | #include 5 | #include 6 | 7 | v8::Handle ErrorException(const char *msg); 8 | v8::Handle VException(const char *msg); 9 | 10 | struct Point { 11 | int x, y; 12 | Point() {} 13 | Point(int xx, int yy) : x(xx), y(yy) {} 14 | }; 15 | 16 | struct Rect { 17 | int x, y, w, h; 18 | Rect() {} 19 | Rect(int xx, int yy, int ww, int hh) : x(xx), y(yy), w(ww), h(hh) {} 20 | bool isNull() { return x == 0 && y == 0 && w == 0 && h == 0; } 21 | }; 22 | 23 | bool str_eq(const char *s1, const char *s2); 24 | 25 | typedef enum { BUF_RGB, BUF_BGR, BUF_RGBA, BUF_BGRA, BUF_GRAY } buffer_type; 26 | 27 | struct encode_request { 28 | v8::Persistent callback; 29 | void *png_obj; 30 | char *png; 31 | int png_len; 32 | char *error; 33 | char *buf_data; 34 | }; 35 | 36 | #endif 37 | 38 | -------------------------------------------------------------------------------- /tests/fixed-png-stack-async.js: -------------------------------------------------------------------------------- 1 | var PngLib = require('png'); 2 | var fs = require('fs'); 3 | var sys = require('sys'); 4 | var Buffer = require('buffer').Buffer; 5 | 6 | var pngStack = new PngLib.FixedPngStack(720, 400, 'rgba'); 7 | 8 | function rectDim(fileName) { 9 | var m = fileName.match(/^\d+-rgba-(\d+)-(\d+)-(\d+)-(\d+).dat$/); 10 | var dim = [m[1], m[2], m[3], m[4]].map(function (n) { 11 | return parseInt(n, 10); 12 | }); 13 | return { x: dim[0], y: dim[1], w: dim[2], h: dim[3] } 14 | } 15 | 16 | var files = fs.readdirSync('./push-data'); 17 | 18 | files.forEach(function(file) { 19 | var dim = rectDim(file); 20 | var rgba = fs.readFileSync('./push-data/' + file); 21 | pngStack.push(rgba, dim.x, dim.y, dim.w, dim.h); 22 | }); 23 | 24 | pngStack.encode(function (data, error) { 25 | if (error) { 26 | console.log("Error: " + error); 27 | process.exit(1); 28 | } 29 | fs.writeFileSync('fixed-async.png', data.toString('binary'), 'binary'); 30 | }); 31 | 32 | -------------------------------------------------------------------------------- /tests/dynamic-png-stack.js: -------------------------------------------------------------------------------- 1 | var PngLib = require('png'); 2 | var fs = require('fs'); 3 | var sys = require('sys'); 4 | var Buffer = require('buffer').Buffer; 5 | 6 | var pngStack = new PngLib.DynamicPngStack('rgba'); 7 | 8 | function rectDim(fileName) { 9 | var m = fileName.match(/^\d+-rgba-(\d+)-(\d+)-(\d+)-(\d+).dat$/); 10 | var dim = [m[1], m[2], m[3], m[4]].map(function (n) { 11 | return parseInt(n, 10); 12 | }); 13 | return { x: dim[0], y: dim[1], w: dim[2], h: dim[3] } 14 | } 15 | 16 | var files = fs.readdirSync('./push-data'); 17 | 18 | files.forEach(function(file) { 19 | var dim = rectDim(file); 20 | var rgba = fs.readFileSync('./push-data/' + file); 21 | pngStack.push(rgba, dim.x, dim.y, dim.w, dim.h); 22 | }); 23 | 24 | fs.writeFileSync('dynamic.png', pngStack.encodeSync().toString('binary'), 'binary'); 25 | 26 | var dims = pngStack.dimensions(); 27 | 28 | sys.log("PNG located at (" + dims.x + "," + dims.y + ") with width " + 29 | dims.width + " and height " + dims.height); 30 | 31 | -------------------------------------------------------------------------------- /src/fixed_png_stack.h: -------------------------------------------------------------------------------- 1 | #ifndef FIXED_PNG_STACK_H 2 | #define FIXED_PNG_STACK_H 3 | 4 | #include 5 | #include 6 | 7 | #include "common.h" 8 | 9 | class FixedPngStack : public node::ObjectWrap { 10 | int width, height; 11 | unsigned char *data; 12 | buffer_type buf_type; 13 | 14 | static void UV_PngEncode(uv_work_t *req); 15 | static void UV_PngEncodeAfter(uv_work_t *req); 16 | 17 | public: 18 | static void Initialize(v8::Handle target); 19 | FixedPngStack(int wwidth, int hheight, buffer_type bbuf_type); 20 | ~FixedPngStack(); 21 | 22 | void Push(unsigned char *buf_data, int x, int y, int w, int h); 23 | v8::Handle PngEncodeSync(); 24 | 25 | static v8::Handle New(const v8::Arguments &args); 26 | static v8::Handle Push(const v8::Arguments &args); 27 | static v8::Handle PngEncodeSync(const v8::Arguments &args); 28 | static v8::Handle PngEncodeAsync(const v8::Arguments &args); 29 | }; 30 | #endif 31 | 32 | -------------------------------------------------------------------------------- /tests/dynamic-png-stack-async.js: -------------------------------------------------------------------------------- 1 | var PngLib = require('png'); 2 | var fs = require('fs'); 3 | var sys = require('sys'); 4 | var Buffer = require('buffer').Buffer; 5 | 6 | var pngStack = new PngLib.DynamicPngStack('rgba'); 7 | 8 | function rectDim(fileName) { 9 | var m = fileName.match(/^\d+-rgba-(\d+)-(\d+)-(\d+)-(\d+).dat$/); 10 | var dim = [m[1], m[2], m[3], m[4]].map(function (n) { 11 | return parseInt(n, 10); 12 | }); 13 | return { x: dim[0], y: dim[1], w: dim[2], h: dim[3] } 14 | } 15 | 16 | var files = fs.readdirSync('./push-data'); 17 | 18 | files.forEach(function(file) { 19 | var dim = rectDim(file); 20 | var rgba = fs.readFileSync('./push-data/' + file); 21 | pngStack.push(rgba, dim.x, dim.y, dim.w, dim.h); 22 | }); 23 | 24 | pngStack.encode(function (data, dims, error) { 25 | fs.writeFileSync('dynamic-async.png', data.toString('binary'), 'binary'); 26 | 27 | sys.log("PNG located at (" + dims.x + "," + dims.y + ") with width " + 28 | dims.width + " and height " + dims.height); 29 | }); 30 | 31 | -------------------------------------------------------------------------------- /wscript: -------------------------------------------------------------------------------- 1 | import Options 2 | from os import unlink, symlink, popen 3 | from os.path import exists 4 | 5 | srcdir = "." 6 | blddir = "build" 7 | VERSION = "0.0.1" 8 | 9 | def set_options(opt): 10 | opt.tool_options("compiler_cxx") 11 | 12 | def configure(conf): 13 | conf.check_tool("compiler_cxx") 14 | conf.check_tool("node_addon") 15 | conf.check(lib='png', libpath=['/lib', '/usr/lib', '/usr/local/lib', '/usr/local/libpng/lib', '/usr/local/pkg/libpng-1.4.1/lib']) 16 | 17 | def build(bld): 18 | obj = bld.new_task_gen("cxx", "shlib", "node_addon") 19 | obj.target = "png" 20 | obj.source = "src/common.cpp src/png_encoder.cpp src/png.cpp src/fixed_png_stack.cpp src/dynamic_png_stack.cpp src/module.cpp src/buffer_compat.cpp" 21 | obj.uselib = "PNG" 22 | obj.cxxflags = ["-D_FILE_OFFSET_BITS=64", "-D_LARGEFILE_SOURCE"] 23 | 24 | def shutdown(): 25 | if Options.commands['clean']: 26 | if exists('png.node'): unlink('png.node') 27 | else: 28 | if exists('build/default/png.node') and not exists('png.node'): 29 | symlink('build/default/png.node', 'png.node') 30 | 31 | -------------------------------------------------------------------------------- /gyp/lib/libpng.la: -------------------------------------------------------------------------------- 1 | # libpng12.la - a libtool library file 2 | # Generated by ltmain.sh (GNU libtool 1.2971 2008-04-29) 2.2.3a 3 | # 4 | # Please DO NOT delete this file! 5 | # It is necessary for linking the library. 6 | 7 | # The name that we can dlopen(3). 8 | dlname='../bin/libpng12.dll' 9 | 10 | # Names of this library. 11 | library_names='libpng12.dll.a' 12 | 13 | # The name of the static archive. 14 | old_library='' 15 | 16 | # Linker flags that can not go in dependency_libs. 17 | inherited_linker_flags='' 18 | 19 | # Libraries that this one depends upon. 20 | dependency_libs=' -LD:/Progra~1/GnuWin32/lib -lz -lintl -lwsock32 -lole32 -luuid -lmsvcp60' 21 | 22 | # Names of additional weak libraries provided by this library 23 | weak_library_names='' 24 | 25 | # Version information for libpng12. 26 | current=37 27 | age=37 28 | revision=0 29 | 30 | # Is this an already installed library? 31 | installed=yes 32 | 33 | # Should we warn about portability when linking against -modules? 34 | shouldnotlink=no 35 | 36 | # Files to dlopen/dlpreopen 37 | dlopen='' 38 | dlpreopen='' 39 | 40 | # Directory that this library needs to be installed in: 41 | libdir='c:/progra~1/libpng/lib' 42 | -------------------------------------------------------------------------------- /gyp/lib/libpng12.la: -------------------------------------------------------------------------------- 1 | # libpng12.la - a libtool library file 2 | # Generated by ltmain.sh (GNU libtool 1.2971 2008-04-29) 2.2.3a 3 | # 4 | # Please DO NOT delete this file! 5 | # It is necessary for linking the library. 6 | 7 | # The name that we can dlopen(3). 8 | dlname='../bin/libpng12.dll' 9 | 10 | # Names of this library. 11 | library_names='libpng12.dll.a' 12 | 13 | # The name of the static archive. 14 | old_library='' 15 | 16 | # Linker flags that can not go in dependency_libs. 17 | inherited_linker_flags='' 18 | 19 | # Libraries that this one depends upon. 20 | dependency_libs=' -LD:/Progra~1/GnuWin32/lib -lz -lintl -lwsock32 -lole32 -luuid -lmsvcp60' 21 | 22 | # Names of additional weak libraries provided by this library 23 | weak_library_names='' 24 | 25 | # Version information for libpng12. 26 | current=37 27 | age=37 28 | revision=0 29 | 30 | # Is this an already installed library? 31 | installed=yes 32 | 33 | # Should we warn about portability when linking against -modules? 34 | shouldnotlink=no 35 | 36 | # Files to dlopen/dlpreopen 37 | dlopen='' 38 | dlpreopen='' 39 | 40 | # Directory that this library needs to be installed in: 41 | libdir='c:/progra~1/libpng/lib' 42 | -------------------------------------------------------------------------------- /src/buffer_compat.cpp: -------------------------------------------------------------------------------- 1 | #include 2 | #include 3 | #include 4 | #include 5 | #include "buffer_compat.h" 6 | 7 | 8 | #if NODE_MINOR_VERSION < 3 9 | 10 | 11 | char *BufferData(node::Buffer *b) { 12 | return b->data(); 13 | } 14 | 15 | 16 | size_t BufferLength(node::Buffer *b) { 17 | return b->length(); 18 | } 19 | 20 | 21 | char *BufferData(v8::Local buf_obj) { 22 | v8::HandleScope scope; 23 | node::Buffer *buf = node::ObjectWrap::Unwrap(buf_obj); 24 | return buf->data(); 25 | } 26 | 27 | 28 | size_t BufferLength(v8::Local buf_obj) { 29 | v8::HandleScope scope; 30 | node::Buffer *buf = node::ObjectWrap::Unwrap(buf_obj); 31 | return buf->length(); 32 | } 33 | 34 | #else // NODE_VERSION 35 | 36 | 37 | char *BufferData(node::Buffer *b) { 38 | return node::Buffer::Data(b->handle_); 39 | } 40 | 41 | 42 | size_t BufferLength(node::Buffer *b) { 43 | return node::Buffer::Length(b->handle_); 44 | } 45 | 46 | 47 | char *BufferData(v8::Local buf_obj) { 48 | v8::HandleScope scope; 49 | return node::Buffer::Data(buf_obj); 50 | } 51 | 52 | 53 | size_t BufferLength(v8::Local buf_obj) { 54 | v8::HandleScope scope; 55 | return node::Buffer::Length(buf_obj); 56 | } 57 | 58 | #endif // NODE_VERSION 59 | -------------------------------------------------------------------------------- /binding.gyp: -------------------------------------------------------------------------------- 1 | { 2 | "targets": [ 3 | { 4 | "target_name": "png", 5 | "sources": [ 6 | "src/common.cpp", 7 | "src/png_encoder.cpp", 8 | "src/png.cpp", 9 | "src/fixed_png_stack.cpp", 10 | "src/dynamic_png_stack.cpp", 11 | "src/module.cpp", 12 | "src/buffer_compat.cpp", 13 | ], 14 | "conditions" : [ 15 | [ 16 | 'OS=="linux"', { 17 | "libraries" : [ 18 | '-lpng', 19 | '-lz' 20 | ], 21 | 'cflags!': [ '-fno-exceptions' ], 22 | 'cflags_cc!': [ '-fno-exceptions' ] 23 | } 24 | ], 25 | [ 26 | 'OS=="mac"', { 27 | 'xcode_settings': { 28 | 'GCC_ENABLE_CPP_EXCEPTIONS': 'YES' 29 | }, 30 | "libraries" : [ 31 | ' 5 | #include 6 | 7 | #include 8 | #include 9 | 10 | #include 11 | 12 | #include "common.h" 13 | 14 | class DynamicPngStack : public node::ObjectWrap { 15 | struct Png { 16 | int len, x, y, w, h; 17 | unsigned char *data; 18 | 19 | Png(unsigned char *ddata, int llen, int xx, int yy, int ww, int hh) : 20 | len(llen), x(xx), y(yy), w(ww), h(hh) 21 | { 22 | data = (unsigned char *)malloc(sizeof(*data)*len); 23 | if (!data) throw "malloc failed in DynamicPngStack::Png::Png"; 24 | memcpy(data, ddata, len); 25 | } 26 | 27 | ~Png() { 28 | free(data); 29 | } 30 | }; 31 | 32 | typedef std::vector vPng; 33 | typedef vPng::iterator vPngi; 34 | vPng png_stack; 35 | Point offset; 36 | int width, height; 37 | buffer_type buf_type; 38 | 39 | std::pair optimal_dimension(); 40 | 41 | static void UV_PngEncode(uv_work_t *req); 42 | static void UV_PngEncodeAfter(uv_work_t *req); 43 | void construct_png_data(unsigned char *data, Point &top); 44 | 45 | public: 46 | static void Initialize(v8::Handle target); 47 | DynamicPngStack(buffer_type bbuf_type); 48 | ~DynamicPngStack(); 49 | 50 | v8::Handle Push(unsigned char *buf_data, size_t buf_len, int x, int y, int w, int h); 51 | v8::Handle Dimensions(); 52 | v8::Handle PngEncodeSync(); 53 | 54 | static v8::Handle New(const v8::Arguments &args); 55 | static v8::Handle Push(const v8::Arguments &args); 56 | static v8::Handle Dimensions(const v8::Arguments &args); 57 | static v8::Handle PngEncodeSync(const v8::Arguments &args); 58 | static v8::Handle PngEncodeAsync(const v8::Arguments &args); 59 | }; 60 | 61 | #endif 62 | 63 | -------------------------------------------------------------------------------- /gyp/lib/zlib.def: -------------------------------------------------------------------------------- 1 | ; h:\mingw\3.3.1\bin\dlltool.exe --export-all-symbols --output-def=zlib.def adler32.pic.o compress.pic.o crc32.pic.o gzio.pic.o uncompr.pic.o deflate.pic.o trees.pic.o zutil.pic.o inflate.pic.o infback.pic.o inftrees.pic.o inffast.pic.o zlib-dllversion.o zlib-dll-res.o 2 | EXPORTS 3 | DllGetVersion @ 1 ; 4 | _dist_code @ 2 DATA ; 5 | _length_code @ 3 DATA ; 6 | _tr_align @ 4 ; 7 | _tr_flush_block @ 5 ; 8 | _tr_init @ 6 ; 9 | _tr_stored_block @ 7 ; 10 | _tr_tally @ 8 ; 11 | adler32 @ 9 ; 12 | adler32_combine @ 10 ; 13 | compress @ 11 ; 14 | compress2 @ 12 ; 15 | compressBound @ 13 ; 16 | crc32 @ 14 ; 17 | crc32_combine @ 15 ; 18 | deflate @ 16 ; 19 | deflateBound @ 17 ; 20 | deflateCopy @ 18 ; 21 | deflateEnd @ 19 ; 22 | deflateInit2_ @ 20 ; 23 | deflateInit_ @ 21 ; 24 | deflateParams @ 22 ; 25 | deflatePrime @ 23 ; 26 | deflateReset @ 24 ; 27 | deflateSetDictionary @ 25 ; 28 | deflateSetHeader @ 26 ; 29 | deflateTune @ 27 ; 30 | deflate_copyright @ 28 DATA ; 31 | get_crc_table @ 29 ; 32 | gzclearerr @ 30 ; 33 | gzclose @ 31 ; 34 | gzdirect @ 32 ; 35 | gzdopen @ 33 ; 36 | gzeof @ 34 ; 37 | gzerror @ 35 ; 38 | gzflush @ 36 ; 39 | gzgetc @ 37 ; 40 | gzgets @ 38 ; 41 | gzopen @ 39 ; 42 | gzprintf @ 40 ; 43 | gzputc @ 41 ; 44 | gzputs @ 42 ; 45 | gzread @ 43 ; 46 | gzrewind @ 44 ; 47 | gzseek @ 45 ; 48 | gzsetparams @ 46 ; 49 | gztell @ 47 ; 50 | gzungetc @ 48 ; 51 | gzwrite @ 49 ; 52 | inflate @ 50 ; 53 | inflateBack @ 51 ; 54 | inflateBackEnd @ 52 ; 55 | inflateBackInit_ @ 53 ; 56 | inflateCopy @ 54 ; 57 | inflateEnd @ 55 ; 58 | inflateGetHeader @ 56 ; 59 | inflateInit2_ @ 57 ; 60 | inflateInit_ @ 58 ; 61 | inflatePrime @ 59 ; 62 | inflateReset @ 60 ; 63 | inflateSetDictionary @ 61 ; 64 | inflateSync @ 62 ; 65 | inflateSyncPoint @ 63 ; 66 | inflate_copyright @ 64 DATA ; 67 | inflate_fast @ 65 ; 68 | inflate_table @ 66 ; 69 | uncompress @ 67 ; 70 | zError @ 68 ; 71 | z_errmsg @ 69 DATA ; 72 | zcalloc @ 70 ; 73 | zcfree @ 71 ; 74 | zlibCompileFlags @ 72 ; 75 | zlibVersion @ 73 ; 76 | -------------------------------------------------------------------------------- /discovery/png.cc: -------------------------------------------------------------------------------- 1 | #include 2 | #include 3 | #include 4 | 5 | #define WIDTH 720 6 | #define HEIGHT 400 7 | 8 | #define SIZE 720*400*4 9 | 10 | #define OUTFILE "png.png" 11 | 12 | void png_write_mem(unsigned char *rgba); 13 | 14 | int chunk = 0; 15 | 16 | class PngWriter { 17 | unsigned char *rgba_; 18 | int width_; 19 | int height_; 20 | const char *file_; 21 | FILE *fd_; 22 | public: 23 | PngWriter(unsigned char *rgba, int width, int height, const char *file) : 24 | rgba_(rgba), width_(width), height_(height), file_(file), fd_(NULL) {} 25 | 26 | static void user_write_data(png_structp png_ptr, png_bytep data, png_size_t length) 27 | { 28 | PngWriter *w = (PngWriter *)png_get_io_ptr(png_ptr); 29 | if (!w->fd_) w->fd_ = fopen(w->file_, "w+"); 30 | printf("%d\n", length); 31 | 32 | char buf[100]; 33 | sprintf(buf, "png%d", chunk++); 34 | FILE *x = fopen(buf, "w+"); 35 | fwrite(data, length, 1, w->fd_); 36 | fwrite(data, length, 1, x); 37 | fclose(x); 38 | } 39 | 40 | void write() { 41 | png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); 42 | if (!png_ptr) { 43 | printf("Couldn't create png_ptr\n"); 44 | exit(1); 45 | } 46 | 47 | png_infop info_ptr = png_create_info_struct(png_ptr); 48 | if (!png_ptr) { 49 | printf("Couldn't create info_ptr\n"); 50 | exit(1); 51 | } 52 | png_set_IHDR(png_ptr, info_ptr, WIDTH, HEIGHT, 53 | 8, PNG_COLOR_TYPE_RGB_ALPHA, PNG_INTERLACE_NONE, 54 | PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT); 55 | 56 | png_set_write_fn(png_ptr, (void *)this, user_write_data, NULL); 57 | 58 | png_write_info(png_ptr, info_ptr); 59 | png_set_invert_alpha(png_ptr); 60 | 61 | png_bytep *row_pointers = (png_bytep *)malloc(sizeof(png_bytep) * HEIGHT); 62 | int i; 63 | for (i=0; i> depth_shift); 36 | output[j] = (val >> red_shift) & red_max; 37 | output[j+1] = (val >> green_shift) & green_max; 38 | output[j+2] = (val >> blue_shift) & blue_max; 39 | output[j+3] = 0xFF; 40 | } 41 | } 42 | else if (bpp == 16) { 43 | unsigned int val; 44 | for (int i = 0, j = 0; i < width*height*bpp/8; i+=bpp/8, j+=4) { 45 | val = (unsigned int)(input[i] >> depth_shift); 46 | output[j] = (val >> red_shift) & red_max; 47 | output[j+1] = (val >> green_shift) & green_max; 48 | output[j+2] = (val >> blue_shift) & blue_max; 49 | output[j+3] = 0xFF; 50 | } 51 | } 52 | else if (bpp == 32) { 53 | unsigned long val; 54 | for (int i = 0, j = 0; i < width*height*bpp/8; i+=bpp/8, j+=4) { 55 | val = (unsigned long)(input[i] >> depth_shift); 56 | output[j] = (val >> red_shift) & red_max; 57 | output[j+1] = (val >> green_shift) & green_max; 58 | output[j+2] = (val >> blue_shift) & blue_max; 59 | output[j+3] = depth == 32 ? val&0xFF : 0xFF; 60 | } 61 | 62 | } 63 | else { 64 | char message[100]; 65 | snprintf(message, 100, "Unknown bpp size %d", bpp); 66 | ThrowException(Exception::Error(String::New(message))); 67 | } 68 | 69 | return output; 70 | } 71 | }; 72 | 73 | -------------------------------------------------------------------------------- /discovery/png.c: -------------------------------------------------------------------------------- 1 | #include 2 | #include 3 | #include 4 | 5 | #define WIDTH 720 6 | #define HEIGHT 400 7 | 8 | #define SIZE 720*400*4 9 | 10 | #define OUTFILE "png.png" 11 | 12 | void png_write_file(unsigned char *rgba); 13 | void png_write_mem(unsigned char *rgba); 14 | 15 | int main() 16 | { 17 | FILE *f = fopen("./foo.dat", "rb"); 18 | if (!f) { 19 | printf("Couldn't open foo.dat\n"); 20 | exit(1); 21 | } 22 | 23 | unsigned char buf[SIZE]; 24 | int read = fread(buf, sizeof(unsigned char), SIZE, f); 25 | printf("Read %d bytes.\n", read); 26 | 27 | //png_write_file(buf); 28 | png_write_mem(buf); 29 | } 30 | 31 | void png_write_file(unsigned char *rgba) { 32 | printf("Writing to %s.\n", OUTFILE); 33 | 34 | FILE *f = fopen(OUTFILE, "wb"); 35 | if (!f) { 36 | printf("Couldn't open %s\n", OUTFILE); 37 | exit(1); 38 | } 39 | 40 | png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); 41 | if (!png_ptr) { 42 | printf("Couldn't create png_ptr\n"); 43 | exit(1); 44 | } 45 | 46 | png_infop info_ptr = png_create_info_struct(png_ptr); 47 | if (!png_ptr) { 48 | printf("Couldn't create info_ptr\n"); 49 | exit(1); 50 | } 51 | png_init_io(png_ptr, f); 52 | png_set_IHDR(png_ptr, info_ptr, WIDTH, HEIGHT, 53 | 8, PNG_COLOR_TYPE_RGB_ALPHA, PNG_INTERLACE_NONE, 54 | PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT); 55 | png_write_info(png_ptr, info_ptr); 56 | png_set_invert_alpha(png_ptr); 57 | 58 | png_bytep *row_pointers; 59 | row_pointers = malloc(sizeof(png_bytep) * HEIGHT); 60 | int i; 61 | for (i=0; i 2 | 3 | #include "png_encoder.h" 4 | #include "common.h" 5 | 6 | void 7 | PngEncoder::png_chunk_producer(png_structp png_ptr, png_bytep data, png_size_t length) 8 | { 9 | PngEncoder *p = (PngEncoder *)png_get_io_ptr(png_ptr); 10 | 11 | if (!p->png) { 12 | p->png = (char *)malloc(sizeof(p->png)*41); // from tests pngs are at least 41 bytes 13 | if (!p->png) 14 | throw "malloc failed in node-png (PngEncoder::png_chunk_producer)"; 15 | p->mem_len = 41; 16 | } 17 | 18 | if (p->png_len + length > p->mem_len) { 19 | char *new_png = (char *)realloc(p->png, sizeof(char)*p->png_len + length); 20 | if (!new_png) 21 | throw "realloc failed in node-png (PngEncoder::png_chunk_producer)."; 22 | p->png = new_png; 23 | p->mem_len += length; 24 | } 25 | memcpy(p->png + p->png_len, data, length); 26 | p->png_len += length; 27 | } 28 | 29 | PngEncoder::PngEncoder(unsigned char *ddata, int wwidth, int hheight, 30 | buffer_type bbuf_type, int bbits) { 31 | data = ddata; 32 | width = wwidth; 33 | height = hheight; 34 | buf_type = bbuf_type; 35 | bits = bbits; 36 | png = NULL; 37 | png_len = 0; 38 | mem_len = 0; 39 | } 40 | 41 | PngEncoder::~PngEncoder() { 42 | free(png); 43 | } 44 | 45 | void 46 | PngEncoder::encode() 47 | { 48 | png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); 49 | if (!png_ptr) 50 | throw "png_create_write_struct failed."; 51 | 52 | png_infop info_ptr = png_create_info_struct(png_ptr); 53 | if (!info_ptr) 54 | throw "png_create_info_struct failed."; 55 | 56 | int color_type; 57 | switch (buf_type) { 58 | case BUF_RGB: 59 | case BUF_BGR: 60 | color_type = PNG_COLOR_TYPE_RGB; 61 | break; 62 | case BUF_GRAY: 63 | color_type = PNG_COLOR_TYPE_GRAY; 64 | break; 65 | default: 66 | color_type = PNG_COLOR_TYPE_RGB_ALPHA; 67 | } 68 | 69 | png_set_IHDR(png_ptr, info_ptr, width, height, 70 | bits, color_type, PNG_INTERLACE_NONE, 71 | PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT); 72 | 73 | png_bytep *row_pointers = NULL; 74 | 75 | try { 76 | png_set_write_fn(png_ptr, (void *)this, png_chunk_producer, NULL); 77 | png_write_info(png_ptr, info_ptr); 78 | png_set_invert_alpha(png_ptr); 79 | 80 | if (buf_type == BUF_BGR || buf_type == BUF_BGRA) 81 | png_set_bgr(png_ptr); 82 | 83 | png_bytep *row_pointers = (png_bytep *)malloc(sizeof(png_bytep) * height); 84 | if (!row_pointers) 85 | throw "malloc failed in node-png (PngEncoder::encode)."; 86 | 87 | switch (buf_type) { 88 | case BUF_RGB: 89 | case BUF_BGR: 90 | for (int i=0; i 2 | #include 3 | #include "common.h" 4 | #include "png_encoder.h" 5 | #include "png.h" 6 | #include "buffer_compat.h" 7 | 8 | using namespace v8; 9 | using namespace node; 10 | 11 | void 12 | Png::Initialize(Handle target) 13 | { 14 | HandleScope scope; 15 | 16 | Local t = FunctionTemplate::New(New); 17 | t->InstanceTemplate()->SetInternalFieldCount(1); 18 | NODE_SET_PROTOTYPE_METHOD(t, "encode", PngEncodeAsync); 19 | NODE_SET_PROTOTYPE_METHOD(t, "encodeSync", PngEncodeSync); 20 | target->Set(String::NewSymbol("Png"), t->GetFunction()); 21 | } 22 | 23 | Png::Png(int wwidth, int hheight, buffer_type bbuf_type, int bbits) : 24 | width(wwidth), height(hheight), buf_type(bbuf_type), bits(bbits) {} 25 | 26 | Handle 27 | Png::PngEncodeSync() 28 | { 29 | HandleScope scope; 30 | 31 | Local buf_val = handle_->GetHiddenValue(String::New("buffer")); 32 | 33 | char *buf_data = BufferData(buf_val->ToObject()); 34 | 35 | try { 36 | PngEncoder encoder((unsigned char*)buf_data, width, height, buf_type, bits); 37 | encoder.encode(); 38 | int png_len = encoder.get_png_len(); 39 | Buffer *retbuf = Buffer::New(png_len); 40 | memcpy(BufferData(retbuf), encoder.get_png(), png_len); 41 | return scope.Close(retbuf->handle_); 42 | } 43 | catch (const char *err) { 44 | return VException(err); 45 | } 46 | } 47 | 48 | Handle 49 | Png::New(const Arguments &args) 50 | { 51 | HandleScope scope; 52 | 53 | if (args.Length() < 3) 54 | return VException("At least three arguments required - data buffer, width, height, [and input buffer type]"); 55 | if (!Buffer::HasInstance(args[0])) 56 | return VException("First argument must be Buffer."); 57 | if (!args[1]->IsInt32()) 58 | return VException("Second argument must be integer width."); 59 | if (!args[2]->IsInt32()) 60 | return VException("Third argument must be integer height."); 61 | 62 | buffer_type buf_type = BUF_RGB; 63 | if (args.Length() >= 4) { 64 | if (!args[3]->IsString()) 65 | return VException("Fourth argument must be 'gray', 'rgb', 'bgr', 'rgba' or 'bgra'."); 66 | 67 | String::AsciiValue bts(args[3]->ToString()); 68 | if (!(str_eq(*bts, "rgb") || str_eq(*bts, "bgr") || 69 | str_eq(*bts, "rgba") || str_eq(*bts, "bgra") || 70 | str_eq(*bts, "gray"))) 71 | { 72 | return VException("Fourth argument must be 'gray', 'rgb', 'bgr', 'rgba' or 'bgra'."); 73 | } 74 | 75 | if (str_eq(*bts, "rgb")) 76 | buf_type = BUF_RGB; 77 | else if (str_eq(*bts, "bgr")) 78 | buf_type = BUF_BGR; 79 | else if (str_eq(*bts, "rgba")) 80 | buf_type = BUF_RGBA; 81 | else if (str_eq(*bts, "bgra")) 82 | buf_type = BUF_BGRA; 83 | else if (str_eq(*bts, "gray")) 84 | buf_type = BUF_GRAY; 85 | else 86 | return VException("Fourth argument wasn't 'gray', 'rgb', 'bgr', 'rgba' or 'bgra'."); 87 | } 88 | 89 | int bits = 8; 90 | 91 | if (args.Length() >= 5) { 92 | if(buf_type != BUF_GRAY) 93 | return VException("Pixel bit width option only valid for \"gray\" buffer type"); 94 | if(!args[4]->IsInt32()) 95 | return VException("Fifth argument must be 8 or 16"); 96 | 97 | if(args[4]->Int32Value() == 8) 98 | bits = 8; 99 | else if (args[4]->Int32Value() == 16) 100 | bits = 16; 101 | else 102 | return VException("Fifth arguments wasn't 8 or 16"); 103 | } 104 | 105 | int w = args[1]->Int32Value(); 106 | int h = args[2]->Int32Value(); 107 | 108 | 109 | if (w < 0) 110 | return VException("Width smaller than 0."); 111 | if (h < 0) 112 | return VException("Height smaller than 0."); 113 | 114 | Png *png = new Png(w, h, buf_type, bits); 115 | png->Wrap(args.This()); 116 | 117 | // Save buffer. 118 | png->handle_->SetHiddenValue(String::New("buffer"), args[0]); 119 | 120 | return args.This(); 121 | } 122 | 123 | Handle 124 | Png::PngEncodeSync(const Arguments &args) 125 | { 126 | HandleScope scope; 127 | Png *png = ObjectWrap::Unwrap(args.This()); 128 | return scope.Close(png->PngEncodeSync()); 129 | } 130 | 131 | void 132 | Png::UV_PngEncode(uv_work_t* req) 133 | { 134 | encode_request *enc_req = (encode_request *)req->data; 135 | Png *png = (Png *)enc_req->png_obj; 136 | 137 | try { 138 | PngEncoder encoder((unsigned char *)enc_req->buf_data, png->width, png->height, png->buf_type, png->bits); 139 | encoder.encode(); 140 | enc_req->png_len = encoder.get_png_len(); 141 | enc_req->png = (char *)malloc(sizeof(*enc_req->png)*enc_req->png_len); 142 | if (!enc_req->png) { 143 | enc_req->error = strdup("malloc in Png::UV_PngEncode failed."); 144 | return; 145 | } 146 | else { 147 | memcpy(enc_req->png, encoder.get_png(), enc_req->png_len); 148 | } 149 | } 150 | catch (const char *err) { 151 | enc_req->error = strdup(err); 152 | } 153 | } 154 | 155 | void 156 | Png::UV_PngEncodeAfter(uv_work_t *req) 157 | { 158 | HandleScope scope; 159 | 160 | encode_request *enc_req = (encode_request *)req->data; 161 | delete req; 162 | 163 | Handle argv[2]; 164 | 165 | if (enc_req->error) { 166 | argv[0] = Undefined(); 167 | argv[1] = ErrorException(enc_req->error); 168 | } 169 | else { 170 | Buffer *buf = Buffer::New(enc_req->png_len); 171 | memcpy(BufferData(buf), enc_req->png, enc_req->png_len); 172 | argv[0] = buf->handle_; 173 | argv[1] = Undefined(); 174 | } 175 | 176 | TryCatch try_catch; // don't quite see the necessity of this 177 | 178 | enc_req->callback->Call(Context::GetCurrent()->Global(), 2, argv); 179 | 180 | if (try_catch.HasCaught()) 181 | FatalException(try_catch); 182 | 183 | enc_req->callback.Dispose(); 184 | free(enc_req->png); 185 | free(enc_req->error); 186 | 187 | ((Png *)enc_req->png_obj)->Unref(); 188 | free(enc_req); 189 | } 190 | 191 | Handle 192 | Png::PngEncodeAsync(const Arguments &args) 193 | { 194 | HandleScope scope; 195 | 196 | if (args.Length() != 1) 197 | return VException("One argument required - callback function."); 198 | 199 | if (!args[0]->IsFunction()) 200 | return VException("First argument must be a function."); 201 | 202 | Local callback = Local::Cast(args[0]); 203 | Png *png = ObjectWrap::Unwrap(args.This()); 204 | 205 | encode_request *enc_req = (encode_request *)malloc(sizeof(*enc_req)); 206 | if (!enc_req) 207 | return VException("malloc in Png::PngEncodeAsync failed."); 208 | 209 | enc_req->callback = Persistent::New(callback); 210 | enc_req->png_obj = png; 211 | enc_req->png = NULL; 212 | enc_req->png_len = 0; 213 | enc_req->error = NULL; 214 | 215 | // We need to pull out the buffer data before 216 | // we go to the thread pool. 217 | Local buf_val = png->handle_->GetHiddenValue(String::New("buffer")); 218 | 219 | enc_req->buf_data = BufferData(buf_val->ToObject()); 220 | 221 | 222 | uv_work_t* req = new uv_work_t; 223 | req->data = enc_req; 224 | uv_queue_work(uv_default_loop(), req, UV_PngEncode, (uv_after_work_cb)UV_PngEncodeAfter); 225 | 226 | png->Ref(); 227 | 228 | return Undefined(); 229 | } 230 | 231 | NODE_MODULE(png, Png::Initialize) 232 | -------------------------------------------------------------------------------- /src/fixed_png_stack.cpp: -------------------------------------------------------------------------------- 1 | #include 2 | 3 | #include "png_encoder.h" 4 | #include "fixed_png_stack.h" 5 | #include "buffer_compat.h" 6 | 7 | using namespace v8; 8 | using namespace node; 9 | 10 | void 11 | FixedPngStack::Initialize(Handle target) 12 | { 13 | HandleScope scope; 14 | 15 | Local t = FunctionTemplate::New(New); 16 | t->InstanceTemplate()->SetInternalFieldCount(1); 17 | NODE_SET_PROTOTYPE_METHOD(t, "push", Push); 18 | NODE_SET_PROTOTYPE_METHOD(t, "encode", PngEncodeAsync); 19 | NODE_SET_PROTOTYPE_METHOD(t, "encodeSync", PngEncodeSync); 20 | target->Set(String::NewSymbol("FixedPngStack"), t->GetFunction()); 21 | } 22 | 23 | FixedPngStack::FixedPngStack(int wwidth, int hheight, buffer_type bbuf_type) : 24 | width(wwidth), height(hheight), buf_type(bbuf_type) 25 | { 26 | data = (unsigned char *)malloc(sizeof(*data) * width * height * 4); 27 | if (!data) throw "malloc failed in node-png (FixedPngStack ctor)"; 28 | memset(data, 0xFF, width*height*4); 29 | } 30 | 31 | FixedPngStack::~FixedPngStack() 32 | { 33 | free(data); 34 | } 35 | 36 | void 37 | FixedPngStack::Push(unsigned char *buf_data, int x, int y, int w, int h) 38 | { 39 | int start = y*width*4 + x*4; 40 | for (int i = 0; i < h; i++) { 41 | unsigned char *datap = &data[start + i*width*4]; 42 | for (int j = 0; j < w; j++) { 43 | *datap++ = *buf_data++; 44 | *datap++ = *buf_data++; 45 | *datap++ = *buf_data++; 46 | *datap++ = (buf_type == BUF_RGB || buf_type == BUF_BGR) ? 0x00 : *buf_data++; 47 | } 48 | } 49 | } 50 | 51 | Handle 52 | FixedPngStack::PngEncodeSync() 53 | { 54 | HandleScope scope; 55 | 56 | buffer_type pbt = (buf_type == BUF_BGR || buf_type == BUF_BGRA) ? BUF_BGRA : BUF_RGBA; 57 | 58 | try { 59 | PngEncoder encoder(data, width, height, pbt, 8); 60 | encoder.encode(); 61 | int png_len = encoder.get_png_len(); 62 | Buffer *retbuf = Buffer::New(png_len); 63 | memcpy(BufferData(retbuf), encoder.get_png(), png_len); 64 | return scope.Close(retbuf->handle_); 65 | } 66 | catch (const char *err) { 67 | return VException(err); 68 | } 69 | } 70 | 71 | Handle 72 | FixedPngStack::New(const Arguments &args) 73 | { 74 | HandleScope scope; 75 | 76 | if (args.Length() < 2) 77 | return VException("At least two arguments required - width and height [and input buffer type]."); 78 | if (!args[0]->IsInt32()) 79 | return VException("First argument must be integer width."); 80 | if (!args[1]->IsInt32()) 81 | return VException("Second argument must be integer height."); 82 | 83 | buffer_type buf_type = BUF_RGB; 84 | if (args.Length() == 3) { 85 | if (!args[2]->IsString()) 86 | return VException("Third argument must be 'rgb', 'bgr', 'rgba' or 'bgra'."); 87 | 88 | String::AsciiValue bts(args[2]->ToString()); 89 | if (!(str_eq(*bts, "rgb") || str_eq(*bts, "bgr") || 90 | str_eq(*bts, "rgba") || str_eq(*bts, "bgra"))) 91 | { 92 | return VException("Third argument must be 'rgb', 'bgr', 'rgba' or 'bgra'."); 93 | } 94 | 95 | if (str_eq(*bts, "rgb")) 96 | buf_type = BUF_RGB; 97 | else if (str_eq(*bts, "bgr")) 98 | buf_type = BUF_BGR; 99 | else if (str_eq(*bts, "rgba")) 100 | buf_type = BUF_RGBA; 101 | else if (str_eq(*bts, "bgra")) 102 | buf_type = BUF_BGRA; 103 | else 104 | return VException("Third argument wasn't 'rgb', 'bgr', 'rgba' or 'bgra'."); 105 | } 106 | 107 | int width = args[0]->Int32Value(); 108 | int height = args[1]->Int32Value(); 109 | 110 | try { 111 | FixedPngStack *png_stack = new FixedPngStack(width, height, buf_type); 112 | png_stack->Wrap(args.This()); 113 | return args.This(); 114 | } 115 | catch (const char *e) { 116 | return VException(e); 117 | } 118 | } 119 | 120 | Handle 121 | FixedPngStack::Push(const Arguments &args) 122 | { 123 | HandleScope scope; 124 | 125 | if (!Buffer::HasInstance(args[0])) 126 | return VException("First argument must be Buffer."); 127 | if (!args[1]->IsInt32()) 128 | return VException("Second argument must be integer x."); 129 | if (!args[2]->IsInt32()) 130 | return VException("Third argument must be integer y."); 131 | if (!args[3]->IsInt32()) 132 | return VException("Fourth argument must be integer w."); 133 | if (!args[4]->IsInt32()) 134 | return VException("Fifth argument must be integer h."); 135 | 136 | FixedPngStack *png_stack = ObjectWrap::Unwrap(args.This()); 137 | int x = args[1]->Int32Value(); 138 | int y = args[2]->Int32Value(); 139 | int w = args[3]->Int32Value(); 140 | int h = args[4]->Int32Value(); 141 | 142 | if (x < 0) 143 | return VException("Coordinate x smaller than 0."); 144 | if (y < 0) 145 | return VException("Coordinate y smaller than 0."); 146 | if (w < 0) 147 | return VException("Width smaller than 0."); 148 | if (h < 0) 149 | return VException("Height smaller than 0."); 150 | if (x >= png_stack->width) 151 | return VException("Coordinate x exceeds FixedPngStack's dimensions."); 152 | if (y >= png_stack->height) 153 | return VException("Coordinate y exceeds FixedPngStack's dimensions."); 154 | if (x+w > png_stack->width) 155 | return VException("Pushed PNG exceeds FixedPngStack's width."); 156 | if (y+h > png_stack->height) 157 | return VException("Pushed PNG exceeds FixedPngStack's height."); 158 | 159 | char *buf_data = BufferData(args[0]->ToObject()); 160 | 161 | png_stack->Push((unsigned char*)buf_data, x, y, w, h); 162 | 163 | return Undefined(); 164 | } 165 | 166 | Handle 167 | FixedPngStack::PngEncodeSync(const Arguments &args) 168 | { 169 | HandleScope scope; 170 | 171 | FixedPngStack *png_stack = ObjectWrap::Unwrap(args.This()); 172 | return png_stack->PngEncodeSync(); 173 | } 174 | 175 | void 176 | FixedPngStack::UV_PngEncode(uv_work_t *req) 177 | { 178 | encode_request *enc_req = (encode_request *)req->data; 179 | FixedPngStack *png = (FixedPngStack *)enc_req->png_obj; 180 | 181 | try { 182 | PngEncoder encoder(png->data, png->width, png->height, png->buf_type, 8); 183 | encoder.encode(); 184 | enc_req->png_len =encoder.get_png_len(); 185 | enc_req->png = (char *)malloc(sizeof(*enc_req->png)*enc_req->png_len); 186 | if (!enc_req->png) { 187 | enc_req->error = strdup("malloc in FixedPngStack::UV_PngEncode failed."); 188 | return; 189 | } 190 | else { 191 | memcpy(enc_req->png,encoder.get_png(), enc_req->png_len); 192 | } 193 | } 194 | catch (const char *err) { 195 | enc_req->error = strdup(err); 196 | } 197 | } 198 | 199 | void 200 | FixedPngStack::UV_PngEncodeAfter(uv_work_t *req) 201 | { 202 | HandleScope scope; 203 | 204 | encode_request *enc_req = (encode_request *)req->data; 205 | delete req; 206 | 207 | Handle argv[2]; 208 | 209 | if (enc_req->error) { 210 | argv[0] = Undefined(); 211 | argv[1] = ErrorException(enc_req->error); 212 | } 213 | else { 214 | Buffer *buf = Buffer::New(enc_req->png_len); 215 | memcpy(BufferData(buf), enc_req->png, enc_req->png_len); 216 | argv[0] = buf->handle_; 217 | argv[1] = Undefined(); 218 | } 219 | 220 | TryCatch try_catch; // don't quite see the necessity of this 221 | 222 | enc_req->callback->Call(Context::GetCurrent()->Global(), 2, argv); 223 | 224 | if (try_catch.HasCaught()) 225 | FatalException(try_catch); 226 | 227 | enc_req->callback.Dispose(); 228 | free(enc_req->png); 229 | free(enc_req->error); 230 | 231 | ((FixedPngStack *)enc_req->png_obj)->Unref(); 232 | free(enc_req); 233 | } 234 | 235 | Handle 236 | FixedPngStack::PngEncodeAsync(const Arguments &args) 237 | { 238 | HandleScope scope; 239 | 240 | if (args.Length() != 1) 241 | return VException("One argument required - callback function."); 242 | 243 | if (!args[0]->IsFunction()) 244 | return VException("First argument must be a function."); 245 | 246 | Local callback = Local::Cast(args[0]); 247 | FixedPngStack *png = ObjectWrap::Unwrap(args.This()); 248 | 249 | encode_request *enc_req = (encode_request *)malloc(sizeof(*enc_req)); 250 | if (!enc_req) 251 | return VException("malloc in FixedPngStack::PngEncodeAsync failed."); 252 | 253 | enc_req->callback = Persistent::New(callback); 254 | enc_req->png_obj = png; 255 | enc_req->png = NULL; 256 | enc_req->png_len = 0; 257 | enc_req->error = NULL; 258 | 259 | uv_work_t* req = new uv_work_t; 260 | req->data = enc_req; 261 | uv_queue_work(uv_default_loop(), req, UV_PngEncode, (uv_after_work_cb)UV_PngEncodeAfter); 262 | 263 | png->Ref(); 264 | 265 | return Undefined(); 266 | } 267 | 268 | -------------------------------------------------------------------------------- /gyp/include/zconf.h: -------------------------------------------------------------------------------- 1 | /* zconf.h -- configuration of the zlib compression library 2 | * Copyright (C) 1995-2005 Jean-loup Gailly. 3 | * For conditions of distribution and use, see copyright notice in zlib.h 4 | */ 5 | 6 | /* @(#) $Id$ */ 7 | 8 | #ifndef ZCONF_H 9 | #define ZCONF_H 10 | 11 | /* 12 | * If you *really* need a unique prefix for all types and library functions, 13 | * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. 14 | */ 15 | #ifdef Z_PREFIX 16 | # define deflateInit_ z_deflateInit_ 17 | # define deflate z_deflate 18 | # define deflateEnd z_deflateEnd 19 | # define inflateInit_ z_inflateInit_ 20 | # define inflate z_inflate 21 | # define inflateEnd z_inflateEnd 22 | # define deflateInit2_ z_deflateInit2_ 23 | # define deflateSetDictionary z_deflateSetDictionary 24 | # define deflateCopy z_deflateCopy 25 | # define deflateReset z_deflateReset 26 | # define deflateParams z_deflateParams 27 | # define deflateBound z_deflateBound 28 | # define deflatePrime z_deflatePrime 29 | # define inflateInit2_ z_inflateInit2_ 30 | # define inflateSetDictionary z_inflateSetDictionary 31 | # define inflateSync z_inflateSync 32 | # define inflateSyncPoint z_inflateSyncPoint 33 | # define inflateCopy z_inflateCopy 34 | # define inflateReset z_inflateReset 35 | # define inflateBack z_inflateBack 36 | # define inflateBackEnd z_inflateBackEnd 37 | # define compress z_compress 38 | # define compress2 z_compress2 39 | # define compressBound z_compressBound 40 | # define uncompress z_uncompress 41 | # define adler32 z_adler32 42 | # define crc32 z_crc32 43 | # define get_crc_table z_get_crc_table 44 | # define zError z_zError 45 | 46 | # define alloc_func z_alloc_func 47 | # define free_func z_free_func 48 | # define in_func z_in_func 49 | # define out_func z_out_func 50 | # define Byte z_Byte 51 | # define uInt z_uInt 52 | # define uLong z_uLong 53 | # define Bytef z_Bytef 54 | # define charf z_charf 55 | # define intf z_intf 56 | # define uIntf z_uIntf 57 | # define uLongf z_uLongf 58 | # define voidpf z_voidpf 59 | # define voidp z_voidp 60 | #endif 61 | 62 | #if defined(__MSDOS__) && !defined(MSDOS) 63 | # define MSDOS 64 | #endif 65 | #if (defined(OS_2) || defined(__OS2__)) && !defined(OS2) 66 | # define OS2 67 | #endif 68 | #if defined(_WINDOWS) && !defined(WINDOWS) 69 | # define WINDOWS 70 | #endif 71 | #if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__) 72 | # ifndef WIN32 73 | # define WIN32 74 | # endif 75 | #endif 76 | #if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32) 77 | # if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__) 78 | # ifndef SYS16BIT 79 | # define SYS16BIT 80 | # endif 81 | # endif 82 | #endif 83 | 84 | /* 85 | * Compile with -DMAXSEG_64K if the alloc function cannot allocate more 86 | * than 64k bytes at a time (needed on systems with 16-bit int). 87 | */ 88 | #ifdef SYS16BIT 89 | # define MAXSEG_64K 90 | #endif 91 | #ifdef MSDOS 92 | # define UNALIGNED_OK 93 | #endif 94 | 95 | #ifdef __STDC_VERSION__ 96 | # ifndef STDC 97 | # define STDC 98 | # endif 99 | # if __STDC_VERSION__ >= 199901L 100 | # ifndef STDC99 101 | # define STDC99 102 | # endif 103 | # endif 104 | #endif 105 | #if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus)) 106 | # define STDC 107 | #endif 108 | #if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__)) 109 | # define STDC 110 | #endif 111 | #if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32)) 112 | # define STDC 113 | #endif 114 | #if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__)) 115 | # define STDC 116 | #endif 117 | 118 | #if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */ 119 | # define STDC 120 | #endif 121 | 122 | #ifndef STDC 123 | # ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ 124 | # define const /* note: need a more gentle solution here */ 125 | # endif 126 | #endif 127 | 128 | /* Some Mac compilers merge all .h files incorrectly: */ 129 | #if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__) 130 | # define NO_DUMMY_DECL 131 | #endif 132 | 133 | /* Maximum value for memLevel in deflateInit2 */ 134 | #ifndef MAX_MEM_LEVEL 135 | # ifdef MAXSEG_64K 136 | # define MAX_MEM_LEVEL 8 137 | # else 138 | # define MAX_MEM_LEVEL 9 139 | # endif 140 | #endif 141 | 142 | /* Maximum value for windowBits in deflateInit2 and inflateInit2. 143 | * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files 144 | * created by gzip. (Files created by minigzip can still be extracted by 145 | * gzip.) 146 | */ 147 | #ifndef MAX_WBITS 148 | # define MAX_WBITS 15 /* 32K LZ77 window */ 149 | #endif 150 | 151 | /* The memory requirements for deflate are (in bytes): 152 | (1 << (windowBits+2)) + (1 << (memLevel+9)) 153 | that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) 154 | plus a few kilobytes for small objects. For example, if you want to reduce 155 | the default memory requirements from 256K to 128K, compile with 156 | make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" 157 | Of course this will generally degrade compression (there's no free lunch). 158 | 159 | The memory requirements for inflate are (in bytes) 1 << windowBits 160 | that is, 32K for windowBits=15 (default value) plus a few kilobytes 161 | for small objects. 162 | */ 163 | 164 | /* Type declarations */ 165 | 166 | #ifndef OF /* function prototypes */ 167 | # ifdef STDC 168 | # define OF(args) args 169 | # else 170 | # define OF(args) () 171 | # endif 172 | #endif 173 | 174 | /* The following definitions for FAR are needed only for MSDOS mixed 175 | * model programming (small or medium model with some far allocations). 176 | * This was tested only with MSC; for other MSDOS compilers you may have 177 | * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, 178 | * just define FAR to be empty. 179 | */ 180 | #ifdef SYS16BIT 181 | # if defined(M_I86SM) || defined(M_I86MM) 182 | /* MSC small or medium model */ 183 | # define SMALL_MEDIUM 184 | # ifdef _MSC_VER 185 | # define FAR _far 186 | # else 187 | # define FAR far 188 | # endif 189 | # endif 190 | # if (defined(__SMALL__) || defined(__MEDIUM__)) 191 | /* Turbo C small or medium model */ 192 | # define SMALL_MEDIUM 193 | # ifdef __BORLANDC__ 194 | # define FAR _far 195 | # else 196 | # define FAR far 197 | # endif 198 | # endif 199 | #endif 200 | 201 | #if defined(WINDOWS) || defined(WIN32) 202 | /* If building or using zlib as a DLL, define ZLIB_DLL. 203 | * This is not mandatory, but it offers a little performance increase. 204 | */ 205 | # ifdef ZLIB_DLL 206 | # if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500)) 207 | # ifdef ZLIB_INTERNAL 208 | # define ZEXTERN extern __declspec(dllexport) 209 | # else 210 | # define ZEXTERN extern __declspec(dllimport) 211 | # endif 212 | # endif 213 | # endif /* ZLIB_DLL */ 214 | /* If building or using zlib with the WINAPI/WINAPIV calling convention, 215 | * define ZLIB_WINAPI. 216 | * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI. 217 | */ 218 | # ifdef ZLIB_WINAPI 219 | # ifdef FAR 220 | # undef FAR 221 | # endif 222 | # include 223 | /* No need for _export, use ZLIB.DEF instead. */ 224 | /* For complete Windows compatibility, use WINAPI, not __stdcall. */ 225 | # define ZEXPORT WINAPI 226 | # ifdef WIN32 227 | # define ZEXPORTVA WINAPIV 228 | # else 229 | # define ZEXPORTVA FAR CDECL 230 | # endif 231 | # endif 232 | #endif 233 | 234 | #if defined (__BEOS__) 235 | # ifdef ZLIB_DLL 236 | # ifdef ZLIB_INTERNAL 237 | # define ZEXPORT __declspec(dllexport) 238 | # define ZEXPORTVA __declspec(dllexport) 239 | # else 240 | # define ZEXPORT __declspec(dllimport) 241 | # define ZEXPORTVA __declspec(dllimport) 242 | # endif 243 | # endif 244 | #endif 245 | 246 | #ifndef ZEXTERN 247 | # define ZEXTERN extern 248 | #endif 249 | #ifndef ZEXPORT 250 | # define ZEXPORT 251 | #endif 252 | #ifndef ZEXPORTVA 253 | # define ZEXPORTVA 254 | #endif 255 | 256 | #ifndef FAR 257 | # define FAR 258 | #endif 259 | 260 | #if !defined(__MACTYPES__) 261 | typedef unsigned char Byte; /* 8 bits */ 262 | #endif 263 | typedef unsigned int uInt; /* 16 bits or more */ 264 | typedef unsigned long uLong; /* 32 bits or more */ 265 | 266 | #ifdef SMALL_MEDIUM 267 | /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ 268 | # define Bytef Byte FAR 269 | #else 270 | typedef Byte FAR Bytef; 271 | #endif 272 | typedef char FAR charf; 273 | typedef int FAR intf; 274 | typedef uInt FAR uIntf; 275 | typedef uLong FAR uLongf; 276 | 277 | #ifdef STDC 278 | typedef void const *voidpc; 279 | typedef void FAR *voidpf; 280 | typedef void *voidp; 281 | #else 282 | typedef Byte const *voidpc; 283 | typedef Byte FAR *voidpf; 284 | typedef Byte *voidp; 285 | #endif 286 | 287 | #if 0 /* HAVE_UNISTD_H -- this line is updated by ./configure */ 288 | # include /* for off_t */ 289 | # include /* for SEEK_* and off_t */ 290 | # ifdef VMS 291 | # include /* for off_t */ 292 | # endif 293 | # define z_off_t off_t 294 | #endif 295 | #ifndef SEEK_SET 296 | # define SEEK_SET 0 /* Seek from beginning of file. */ 297 | # define SEEK_CUR 1 /* Seek from current position. */ 298 | # define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ 299 | #endif 300 | #ifndef z_off_t 301 | # define z_off_t long 302 | #endif 303 | 304 | #if defined(__OS400__) 305 | # define NO_vsnprintf 306 | #endif 307 | 308 | #if defined(__MVS__) 309 | # define NO_vsnprintf 310 | # ifdef FAR 311 | # undef FAR 312 | # endif 313 | #endif 314 | 315 | /* MVS linker does not support external names larger than 8 bytes */ 316 | #if defined(__MVS__) 317 | # pragma map(deflateInit_,"DEIN") 318 | # pragma map(deflateInit2_,"DEIN2") 319 | # pragma map(deflateEnd,"DEEND") 320 | # pragma map(deflateBound,"DEBND") 321 | # pragma map(inflateInit_,"ININ") 322 | # pragma map(inflateInit2_,"ININ2") 323 | # pragma map(inflateEnd,"INEND") 324 | # pragma map(inflateSync,"INSY") 325 | # pragma map(inflateSetDictionary,"INSEDI") 326 | # pragma map(compressBound,"CMBND") 327 | # pragma map(inflate_table,"INTABL") 328 | # pragma map(inflate_fast,"INFA") 329 | # pragma map(inflate_copyright,"INCOPY") 330 | #endif 331 | 332 | #endif /* ZCONF_H */ 333 | -------------------------------------------------------------------------------- /src/dynamic_png_stack.cpp: -------------------------------------------------------------------------------- 1 | #include "png_encoder.h" 2 | #include "dynamic_png_stack.h" 3 | #include "buffer_compat.h" 4 | 5 | using namespace v8; 6 | using namespace node; 7 | 8 | std::pair 9 | DynamicPngStack::optimal_dimension() 10 | { 11 | Point top(-1, -1), bottom(-1, -1); 12 | for (vPngi it = png_stack.begin(); it != png_stack.end(); ++it) { 13 | Png *png = *it; 14 | if (top.x == -1 || png->x < top.x) 15 | top.x = png->x; 16 | if (top.y == -1 || png->y < top.y) 17 | top.y = png->y; 18 | if (bottom.x == -1 || png->x + png->w > bottom.x) 19 | bottom.x = png->x + png->w; 20 | if (bottom.y == -1 || png->y + png->h > bottom.y) 21 | bottom.y = png->y + png->h; 22 | } 23 | 24 | /* 25 | printf("top x, y: %d, %d\n", top.x, top.y); 26 | printf("bottom x, y: %d, %d\n", bottom.x, bottom.y); 27 | */ 28 | 29 | return std::make_pair(top, bottom); 30 | } 31 | 32 | void 33 | DynamicPngStack::construct_png_data(unsigned char *data, Point &top) 34 | { 35 | for (vPngi it = png_stack.begin(); it != png_stack.end(); ++it) { 36 | Png *png = *it; 37 | int start = (png->y - top.y)*width*4 + (png->x - top.x)*4; 38 | unsigned char *pngdatap = png->data; 39 | for (int i = 0; i < png->h; i++) { 40 | unsigned char *datap = &data[start + i*width*4]; 41 | for (int j = 0; j < png->w; j++) { 42 | *datap++ = *pngdatap++; 43 | *datap++ = *pngdatap++; 44 | *datap++ = *pngdatap++; 45 | *datap++ = (buf_type == BUF_RGB || buf_type == BUF_BGR) ? 0x00 : *pngdatap++; 46 | } 47 | } 48 | } 49 | } 50 | 51 | void 52 | DynamicPngStack::Initialize(Handle target) 53 | { 54 | HandleScope scope; 55 | 56 | Local t = FunctionTemplate::New(New); 57 | t->InstanceTemplate()->SetInternalFieldCount(1); 58 | NODE_SET_PROTOTYPE_METHOD(t, "push", Push); 59 | NODE_SET_PROTOTYPE_METHOD(t, "encode", PngEncodeAsync); 60 | NODE_SET_PROTOTYPE_METHOD(t, "encodeSync", PngEncodeSync); 61 | NODE_SET_PROTOTYPE_METHOD(t, "dimensions", Dimensions); 62 | target->Set(String::NewSymbol("DynamicPngStack"), t->GetFunction()); 63 | } 64 | 65 | DynamicPngStack::DynamicPngStack(buffer_type bbuf_type) : 66 | buf_type(bbuf_type) {} 67 | 68 | DynamicPngStack::~DynamicPngStack() 69 | { 70 | for (vPngi it = png_stack.begin(); it != png_stack.end(); ++it) 71 | delete *it; 72 | } 73 | 74 | Handle 75 | DynamicPngStack::Push(unsigned char *buf_data, size_t buf_len, int x, int y, int w, int h) 76 | { 77 | try { 78 | Png *png = new Png(buf_data, buf_len, x, y, w, h); 79 | png_stack.push_back(png); 80 | return Undefined(); 81 | } 82 | catch (const char *e) { 83 | return VException(e); 84 | } 85 | } 86 | 87 | Handle 88 | DynamicPngStack::PngEncodeSync() 89 | { 90 | HandleScope scope; 91 | 92 | std::pair optimal = optimal_dimension(); 93 | Point top = optimal.first, bot = optimal.second; 94 | 95 | // printf("width, height: %d, %d\n", bot.x - top.x, bot.y - top.y); 96 | 97 | offset = top; 98 | width = bot.x - top.x; 99 | height = bot.y - top.y; 100 | 101 | unsigned char *data = (unsigned char*)malloc(sizeof(*data) * width * height * 4); 102 | if (!data) return VException("malloc failed in DynamicPngStack::PngEncode"); 103 | memset(data, 0xFF, width*height*4); 104 | 105 | construct_png_data(data, top); 106 | 107 | buffer_type pbt = (buf_type == BUF_BGR || buf_type == BUF_BGRA) ? BUF_BGRA : BUF_RGBA; 108 | 109 | try { 110 | PngEncoder encoder(data, width, height, pbt, 8); 111 | encoder.encode(); 112 | free(data); 113 | int png_len = encoder.get_png_len(); 114 | Buffer *retbuf = Buffer::New(png_len); 115 | memcpy(BufferData(retbuf), encoder.get_png(), png_len); 116 | return scope.Close(retbuf->handle_); 117 | } 118 | catch (const char *err) { 119 | return VException(err); 120 | } 121 | } 122 | 123 | Handle 124 | DynamicPngStack::Dimensions() 125 | { 126 | HandleScope scope; 127 | 128 | Local dim = Object::New(); 129 | dim->Set(String::NewSymbol("x"), Integer::New(offset.x)); 130 | dim->Set(String::NewSymbol("y"), Integer::New(offset.y)); 131 | dim->Set(String::NewSymbol("width"), Integer::New(width)); 132 | dim->Set(String::NewSymbol("height"), Integer::New(height)); 133 | 134 | return scope.Close(dim); 135 | } 136 | 137 | Handle 138 | DynamicPngStack::New(const Arguments &args) 139 | { 140 | HandleScope scope; 141 | 142 | buffer_type buf_type = BUF_RGB; 143 | if (args.Length() == 1) { 144 | if (!args[0]->IsString()) 145 | return VException("First argument must be 'rgb', 'bgr', 'rgba' or 'bgra'."); 146 | 147 | String::AsciiValue bts(args[0]->ToString()); 148 | if (!(str_eq(*bts, "rgb") || str_eq(*bts, "bgr") || 149 | str_eq(*bts, "rgba") || str_eq(*bts, "bgra"))) 150 | { 151 | return VException("First argument must be 'rgb', 'bgr', 'rgba' or 'bgra'."); 152 | } 153 | 154 | if (str_eq(*bts, "rgb")) 155 | buf_type = BUF_RGB; 156 | else if (str_eq(*bts, "bgr")) 157 | buf_type = BUF_BGR; 158 | else if (str_eq(*bts, "rgba")) 159 | buf_type = BUF_RGBA; 160 | else if (str_eq(*bts, "bgra")) 161 | buf_type = BUF_BGRA; 162 | else 163 | return VException("First argument wasn't 'rgb', 'bgr', 'rgba' or 'bgra'."); 164 | } 165 | 166 | DynamicPngStack *png_stack = new DynamicPngStack(buf_type); 167 | png_stack->Wrap(args.This()); 168 | return args.This(); 169 | } 170 | 171 | Handle 172 | DynamicPngStack::Push(const Arguments &args) 173 | { 174 | HandleScope scope; 175 | 176 | if (!Buffer::HasInstance(args[0])) 177 | return VException("First argument must be Buffer."); 178 | if (!args[1]->IsInt32()) 179 | return VException("Second argument must be integer x."); 180 | if (!args[2]->IsInt32()) 181 | return VException("Third argument must be integer y."); 182 | if (!args[3]->IsInt32()) 183 | return VException("Fourth argument must be integer w."); 184 | if (!args[4]->IsInt32()) 185 | return VException("Fifth argument must be integer h."); 186 | 187 | int x = args[1]->Int32Value(); 188 | int y = args[2]->Int32Value(); 189 | int w = args[3]->Int32Value(); 190 | int h = args[4]->Int32Value(); 191 | 192 | if (x < 0) 193 | return VException("Coordinate x smaller than 0."); 194 | if (y < 0) 195 | return VException("Coordinate y smaller than 0."); 196 | if (w < 0) 197 | return VException("Width smaller than 0."); 198 | if (h < 0) 199 | return VException("Height smaller than 0."); 200 | 201 | DynamicPngStack *png_stack = ObjectWrap::Unwrap(args.This()); 202 | 203 | Local buf_obj = args[0]->ToObject(); 204 | char *buf_data = BufferData(buf_obj); 205 | size_t buf_len = BufferLength(buf_obj); 206 | 207 | return scope.Close(png_stack->Push((unsigned char*)buf_data, buf_len, x, y, w, h)); 208 | } 209 | 210 | Handle 211 | DynamicPngStack::Dimensions(const Arguments &args) 212 | { 213 | HandleScope scope; 214 | 215 | DynamicPngStack *png_stack = ObjectWrap::Unwrap(args.This()); 216 | return scope.Close(png_stack->Dimensions()); 217 | } 218 | 219 | Handle 220 | DynamicPngStack::PngEncodeSync(const Arguments &args) 221 | { 222 | HandleScope scope; 223 | 224 | DynamicPngStack *png_stack = ObjectWrap::Unwrap(args.This()); 225 | return scope.Close(png_stack->PngEncodeSync()); 226 | } 227 | 228 | void 229 | DynamicPngStack::UV_PngEncode(uv_work_t *req) 230 | { 231 | encode_request *enc_req = (encode_request *)req->data; 232 | DynamicPngStack *png = (DynamicPngStack *)enc_req->png_obj; 233 | 234 | std::pair optimal = png->optimal_dimension(); 235 | Point top = optimal.first, bot = optimal.second; 236 | 237 | // printf("width, height: %d, %d\n", bot.x - top.x, bot.y - top.y); 238 | 239 | png->offset = top; 240 | png->width = bot.x - top.x; 241 | png->height = bot.y - top.y; 242 | 243 | unsigned char *data = (unsigned char*)malloc(sizeof(*data) * png->width * png->height * 4); 244 | if (!data) { 245 | enc_req->error = strdup("malloc failed in DynamicPngStack::UV_PngEncode."); 246 | return; 247 | } 248 | memset(data, 0xFF, png->width*png->height*4); 249 | 250 | png->construct_png_data(data, top); 251 | 252 | buffer_type pbt = (png->buf_type == BUF_BGR || png->buf_type == BUF_BGRA) ? 253 | BUF_BGRA : BUF_RGBA; 254 | 255 | try { 256 | PngEncoder encoder(data, png->width, png->height, pbt, 8); 257 | encoder.encode(); 258 | free(data); 259 | enc_req->png_len = encoder.get_png_len(); 260 | enc_req->png = (char *)malloc(sizeof(*enc_req->png)*enc_req->png_len); 261 | if (!enc_req->png) { 262 | enc_req->error = strdup("malloc in DynamicPngStack::UV_PngEncode failed."); 263 | return; 264 | } 265 | else { 266 | memcpy(enc_req->png, encoder.get_png(), enc_req->png_len); 267 | } 268 | } 269 | catch (const char *err) { 270 | enc_req->error = strdup(err); 271 | } 272 | } 273 | 274 | void 275 | DynamicPngStack::UV_PngEncodeAfter(uv_work_t *req) 276 | { 277 | HandleScope scope; 278 | 279 | encode_request *enc_req = (encode_request *)req->data; 280 | delete req; 281 | 282 | DynamicPngStack *png = (DynamicPngStack *)enc_req->png_obj; 283 | 284 | Handle argv[3]; 285 | 286 | if (enc_req->error) { 287 | argv[0] = Undefined(); 288 | argv[1] = Undefined(); 289 | argv[2] = ErrorException(enc_req->error); 290 | } 291 | else { 292 | Buffer *buf = Buffer::New(enc_req->png_len); 293 | memcpy(BufferData(buf), enc_req->png, enc_req->png_len); 294 | argv[0] = buf->handle_; 295 | argv[1] = png->Dimensions(); 296 | argv[2] = Undefined(); 297 | } 298 | 299 | TryCatch try_catch; // don't quite see the necessity of this 300 | 301 | enc_req->callback->Call(Context::GetCurrent()->Global(), 3, argv); 302 | 303 | if (try_catch.HasCaught()) 304 | FatalException(try_catch); 305 | 306 | enc_req->callback.Dispose(); 307 | free(enc_req->png); 308 | free(enc_req->error); 309 | 310 | png->Unref(); 311 | free(enc_req); 312 | } 313 | 314 | Handle 315 | DynamicPngStack::PngEncodeAsync(const Arguments &args) 316 | { 317 | HandleScope scope; 318 | 319 | if (args.Length() != 1) 320 | return VException("One argument required - callback function."); 321 | 322 | if (!args[0]->IsFunction()) 323 | return VException("First argument must be a function."); 324 | 325 | Local callback = Local::Cast(args[0]); 326 | DynamicPngStack *png = ObjectWrap::Unwrap(args.This()); 327 | 328 | encode_request *enc_req = (encode_request *)malloc(sizeof(*enc_req)); 329 | if (!enc_req) 330 | return VException("malloc in DynamicPngStack::PngEncodeAsync failed."); 331 | 332 | enc_req->callback = Persistent::New(callback); 333 | enc_req->png_obj = png; 334 | enc_req->png = NULL; 335 | enc_req->png_len = 0; 336 | enc_req->error = NULL; 337 | 338 | 339 | uv_work_t* req = new uv_work_t; 340 | req->data = enc_req; 341 | uv_queue_work(uv_default_loop(), req, UV_PngEncode, (uv_after_work_cb)UV_PngEncodeAfter); 342 | 343 | png->Ref(); 344 | 345 | return Undefined(); 346 | } 347 | 348 | -------------------------------------------------------------------------------- /gyp/include/pngconf.h: -------------------------------------------------------------------------------- 1 | 2 | /* pngconf.h - machine configurable file for libpng 3 | * 4 | * libpng version 1.2.37 - June 4, 2009 5 | * For conditions of distribution and use, see copyright notice in png.h 6 | * Copyright (c) 1998-2009 Glenn Randers-Pehrson 7 | * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) 8 | * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) 9 | */ 10 | 11 | /* Any machine specific code is near the front of this file, so if you 12 | * are configuring libpng for a machine, you may want to read the section 13 | * starting here down to where it starts to typedef png_color, png_text, 14 | * and png_info. 15 | */ 16 | 17 | #ifndef PNGCONF_H 18 | #define PNGCONF_H 19 | 20 | #define PNG_1_2_X 21 | 22 | /* 23 | * PNG_USER_CONFIG has to be defined on the compiler command line. This 24 | * includes the resource compiler for Windows DLL configurations. 25 | */ 26 | #ifdef PNG_USER_CONFIG 27 | # ifndef PNG_USER_PRIVATEBUILD 28 | # define PNG_USER_PRIVATEBUILD 29 | # endif 30 | #include "pngusr.h" 31 | #endif 32 | 33 | /* PNG_CONFIGURE_LIBPNG is set by the "configure" script. */ 34 | #ifdef PNG_CONFIGURE_LIBPNG 35 | #ifdef HAVE_CONFIG_H 36 | #include "config.h" 37 | #endif 38 | #endif 39 | 40 | /* 41 | * Added at libpng-1.2.8 42 | * 43 | * If you create a private DLL you need to define in "pngusr.h" the followings: 44 | * #define PNG_USER_PRIVATEBUILD 46 | * e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons." 47 | * #define PNG_USER_DLLFNAME_POSTFIX 51 | * e.g. // private DLL "libpng13gx.dll" 52 | * #define PNG_USER_DLLFNAME_POSTFIX "gx" 53 | * 54 | * The following macros are also at your disposal if you want to complete the 55 | * DLL VERSIONINFO structure. 56 | * - PNG_USER_VERSIONINFO_COMMENTS 57 | * - PNG_USER_VERSIONINFO_COMPANYNAME 58 | * - PNG_USER_VERSIONINFO_LEGALTRADEMARKS 59 | */ 60 | 61 | #ifdef __STDC__ 62 | #ifdef SPECIALBUILD 63 | # pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\ 64 | are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.") 65 | #endif 66 | 67 | #ifdef PRIVATEBUILD 68 | # pragma message("PRIVATEBUILD is deprecated.\ 69 | Use PNG_USER_PRIVATEBUILD instead.") 70 | # define PNG_USER_PRIVATEBUILD PRIVATEBUILD 71 | #endif 72 | #endif /* __STDC__ */ 73 | 74 | #ifndef PNG_VERSION_INFO_ONLY 75 | 76 | /* End of material added to libpng-1.2.8 */ 77 | 78 | /* Added at libpng-1.2.19, removed at libpng-1.2.20 because it caused trouble 79 | Restored at libpng-1.2.21 */ 80 | #if !defined(PNG_NO_WARN_UNINITIALIZED_ROW) && \ 81 | !defined(PNG_WARN_UNINITIALIZED_ROW) 82 | # define PNG_WARN_UNINITIALIZED_ROW 1 83 | #endif 84 | /* End of material added at libpng-1.2.19/1.2.21 */ 85 | 86 | /* This is the size of the compression buffer, and thus the size of 87 | * an IDAT chunk. Make this whatever size you feel is best for your 88 | * machine. One of these will be allocated per png_struct. When this 89 | * is full, it writes the data to the disk, and does some other 90 | * calculations. Making this an extremely small size will slow 91 | * the library down, but you may want to experiment to determine 92 | * where it becomes significant, if you are concerned with memory 93 | * usage. Note that zlib allocates at least 32Kb also. For readers, 94 | * this describes the size of the buffer available to read the data in. 95 | * Unless this gets smaller than the size of a row (compressed), 96 | * it should not make much difference how big this is. 97 | */ 98 | 99 | #ifndef PNG_ZBUF_SIZE 100 | # define PNG_ZBUF_SIZE 8192 101 | #endif 102 | 103 | /* Enable if you want a write-only libpng */ 104 | 105 | #ifndef PNG_NO_READ_SUPPORTED 106 | # define PNG_READ_SUPPORTED 107 | #endif 108 | 109 | /* Enable if you want a read-only libpng */ 110 | 111 | #ifndef PNG_NO_WRITE_SUPPORTED 112 | # define PNG_WRITE_SUPPORTED 113 | #endif 114 | 115 | /* Enabled by default in 1.2.0. You can disable this if you don't need to 116 | support PNGs that are embedded in MNG datastreams */ 117 | #if !defined(PNG_1_0_X) && !defined(PNG_NO_MNG_FEATURES) 118 | # ifndef PNG_MNG_FEATURES_SUPPORTED 119 | # define PNG_MNG_FEATURES_SUPPORTED 120 | # endif 121 | #endif 122 | 123 | #ifndef PNG_NO_FLOATING_POINT_SUPPORTED 124 | # ifndef PNG_FLOATING_POINT_SUPPORTED 125 | # define PNG_FLOATING_POINT_SUPPORTED 126 | # endif 127 | #endif 128 | 129 | /* If you are running on a machine where you cannot allocate more 130 | * than 64K of memory at once, uncomment this. While libpng will not 131 | * normally need that much memory in a chunk (unless you load up a very 132 | * large file), zlib needs to know how big of a chunk it can use, and 133 | * libpng thus makes sure to check any memory allocation to verify it 134 | * will fit into memory. 135 | #define PNG_MAX_MALLOC_64K 136 | */ 137 | #if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K) 138 | # define PNG_MAX_MALLOC_64K 139 | #endif 140 | 141 | /* Special munging to support doing things the 'cygwin' way: 142 | * 'Normal' png-on-win32 defines/defaults: 143 | * PNG_BUILD_DLL -- building dll 144 | * PNG_USE_DLL -- building an application, linking to dll 145 | * (no define) -- building static library, or building an 146 | * application and linking to the static lib 147 | * 'Cygwin' defines/defaults: 148 | * PNG_BUILD_DLL -- (ignored) building the dll 149 | * (no define) -- (ignored) building an application, linking to the dll 150 | * PNG_STATIC -- (ignored) building the static lib, or building an 151 | * application that links to the static lib. 152 | * ALL_STATIC -- (ignored) building various static libs, or building an 153 | * application that links to the static libs. 154 | * Thus, 155 | * a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and 156 | * this bit of #ifdefs will define the 'correct' config variables based on 157 | * that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but 158 | * unnecessary. 159 | * 160 | * Also, the precedence order is: 161 | * ALL_STATIC (since we can't #undef something outside our namespace) 162 | * PNG_BUILD_DLL 163 | * PNG_STATIC 164 | * (nothing) == PNG_USE_DLL 165 | * 166 | * CYGWIN (2002-01-20): The preceding is now obsolete. With the advent 167 | * of auto-import in binutils, we no longer need to worry about 168 | * __declspec(dllexport) / __declspec(dllimport) and friends. Therefore, 169 | * we don't need to worry about PNG_STATIC or ALL_STATIC when it comes 170 | * to __declspec() stuff. However, we DO need to worry about 171 | * PNG_BUILD_DLL and PNG_STATIC because those change some defaults 172 | * such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed. 173 | */ 174 | #if defined(__CYGWIN__) 175 | # if defined(ALL_STATIC) 176 | # if defined(PNG_BUILD_DLL) 177 | # undef PNG_BUILD_DLL 178 | # endif 179 | # if defined(PNG_USE_DLL) 180 | # undef PNG_USE_DLL 181 | # endif 182 | # if defined(PNG_DLL) 183 | # undef PNG_DLL 184 | # endif 185 | # if !defined(PNG_STATIC) 186 | # define PNG_STATIC 187 | # endif 188 | # else 189 | # if defined (PNG_BUILD_DLL) 190 | # if defined(PNG_STATIC) 191 | # undef PNG_STATIC 192 | # endif 193 | # if defined(PNG_USE_DLL) 194 | # undef PNG_USE_DLL 195 | # endif 196 | # if !defined(PNG_DLL) 197 | # define PNG_DLL 198 | # endif 199 | # else 200 | # if defined(PNG_STATIC) 201 | # if defined(PNG_USE_DLL) 202 | # undef PNG_USE_DLL 203 | # endif 204 | # if defined(PNG_DLL) 205 | # undef PNG_DLL 206 | # endif 207 | # else 208 | # if !defined(PNG_USE_DLL) 209 | # define PNG_USE_DLL 210 | # endif 211 | # if !defined(PNG_DLL) 212 | # define PNG_DLL 213 | # endif 214 | # endif 215 | # endif 216 | # endif 217 | #endif 218 | 219 | /* This protects us against compilers that run on a windowing system 220 | * and thus don't have or would rather us not use the stdio types: 221 | * stdin, stdout, and stderr. The only one currently used is stderr 222 | * in png_error() and png_warning(). #defining PNG_NO_CONSOLE_IO will 223 | * prevent these from being compiled and used. #defining PNG_NO_STDIO 224 | * will also prevent these, plus will prevent the entire set of stdio 225 | * macros and functions (FILE *, printf, etc.) from being compiled and used, 226 | * unless (PNG_DEBUG > 0) has been #defined. 227 | * 228 | * #define PNG_NO_CONSOLE_IO 229 | * #define PNG_NO_STDIO 230 | */ 231 | 232 | #if defined(_WIN32_WCE) 233 | # include 234 | /* Console I/O functions are not supported on WindowsCE */ 235 | # define PNG_NO_CONSOLE_IO 236 | /* abort() may not be supported on some/all Windows CE platforms */ 237 | # define PNG_ABORT() exit(-1) 238 | # ifdef PNG_DEBUG 239 | # undef PNG_DEBUG 240 | # endif 241 | #endif 242 | 243 | #ifdef PNG_BUILD_DLL 244 | # ifndef PNG_CONSOLE_IO_SUPPORTED 245 | # ifndef PNG_NO_CONSOLE_IO 246 | # define PNG_NO_CONSOLE_IO 247 | # endif 248 | # endif 249 | #endif 250 | 251 | # ifdef PNG_NO_STDIO 252 | # ifndef PNG_NO_CONSOLE_IO 253 | # define PNG_NO_CONSOLE_IO 254 | # endif 255 | # ifdef PNG_DEBUG 256 | # if (PNG_DEBUG > 0) 257 | # include 258 | # endif 259 | # endif 260 | # else 261 | # if !defined(_WIN32_WCE) 262 | /* "stdio.h" functions are not supported on WindowsCE */ 263 | # include 264 | # endif 265 | # endif 266 | 267 | /* This macro protects us against machines that don't have function 268 | * prototypes (ie K&R style headers). If your compiler does not handle 269 | * function prototypes, define this macro and use the included ansi2knr. 270 | * I've always been able to use _NO_PROTO as the indicator, but you may 271 | * need to drag the empty declaration out in front of here, or change the 272 | * ifdef to suit your own needs. 273 | */ 274 | #ifndef PNGARG 275 | 276 | #ifdef OF /* zlib prototype munger */ 277 | # define PNGARG(arglist) OF(arglist) 278 | #else 279 | 280 | #ifdef _NO_PROTO 281 | # define PNGARG(arglist) () 282 | # ifndef PNG_TYPECAST_NULL 283 | # define PNG_TYPECAST_NULL 284 | # endif 285 | #else 286 | # define PNGARG(arglist) arglist 287 | #endif /* _NO_PROTO */ 288 | 289 | 290 | #endif /* OF */ 291 | 292 | #endif /* PNGARG */ 293 | 294 | /* Try to determine if we are compiling on a Mac. Note that testing for 295 | * just __MWERKS__ is not good enough, because the Codewarrior is now used 296 | * on non-Mac platforms. 297 | */ 298 | #ifndef MACOS 299 | # if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \ 300 | defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC) 301 | # define MACOS 302 | # endif 303 | #endif 304 | 305 | /* enough people need this for various reasons to include it here */ 306 | #if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE) 307 | # include 308 | #endif 309 | 310 | #if !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED) 311 | # define PNG_SETJMP_SUPPORTED 312 | #endif 313 | 314 | #ifdef PNG_SETJMP_SUPPORTED 315 | /* This is an attempt to force a single setjmp behaviour on Linux. If 316 | * the X config stuff didn't define _BSD_SOURCE we wouldn't need this. 317 | * 318 | * You can bypass this test if you know that your application uses exactly 319 | * the same setjmp.h that was included when libpng was built. Only define 320 | * PNG_SKIP_SETJMP_CHECK while building your application, prior to the 321 | * application's '#include "png.h"'. Don't define PNG_SKIP_SETJMP_CHECK 322 | * while building a separate libpng library for general use. 323 | */ 324 | 325 | # ifndef PNG_SKIP_SETJMP_CHECK 326 | # ifdef __linux__ 327 | # ifdef _BSD_SOURCE 328 | # define PNG_SAVE_BSD_SOURCE 329 | # undef _BSD_SOURCE 330 | # endif 331 | # ifdef _SETJMP_H 332 | /* If you encounter a compiler error here, see the explanation 333 | * near the end of INSTALL. 334 | */ 335 | __pngconf.h__ in libpng already includes setjmp.h; 336 | __dont__ include it again.; 337 | # endif 338 | # endif /* __linux__ */ 339 | # endif /* PNG_SKIP_SETJMP_CHECK */ 340 | 341 | /* include setjmp.h for error handling */ 342 | # include 343 | 344 | # ifdef __linux__ 345 | # ifdef PNG_SAVE_BSD_SOURCE 346 | # ifndef _BSD_SOURCE 347 | # define _BSD_SOURCE 348 | # endif 349 | # undef PNG_SAVE_BSD_SOURCE 350 | # endif 351 | # endif /* __linux__ */ 352 | #endif /* PNG_SETJMP_SUPPORTED */ 353 | 354 | #ifdef BSD 355 | # include 356 | #else 357 | # include 358 | #endif 359 | 360 | /* Other defines for things like memory and the like can go here. */ 361 | #ifdef PNG_INTERNAL 362 | 363 | #include 364 | 365 | /* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which 366 | * aren't usually used outside the library (as far as I know), so it is 367 | * debatable if they should be exported at all. In the future, when it is 368 | * possible to have run-time registry of chunk-handling functions, some of 369 | * these will be made available again. 370 | #define PNG_EXTERN extern 371 | */ 372 | #define PNG_EXTERN 373 | 374 | /* Other defines specific to compilers can go here. Try to keep 375 | * them inside an appropriate ifdef/endif pair for portability. 376 | */ 377 | 378 | #if defined(PNG_FLOATING_POINT_SUPPORTED) 379 | # if defined(MACOS) 380 | /* We need to check that hasn't already been included earlier 381 | * as it seems it doesn't agree with , yet we should really use 382 | * if possible. 383 | */ 384 | # if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__) 385 | # include 386 | # endif 387 | # else 388 | # include 389 | # endif 390 | # if defined(_AMIGA) && defined(__SASC) && defined(_M68881) 391 | /* Amiga SAS/C: We must include builtin FPU functions when compiling using 392 | * MATH=68881 393 | */ 394 | # include 395 | # endif 396 | #endif 397 | 398 | /* Codewarrior on NT has linking problems without this. */ 399 | #if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__) 400 | # define PNG_ALWAYS_EXTERN 401 | #endif 402 | 403 | /* This provides the non-ANSI (far) memory allocation routines. */ 404 | #if defined(__TURBOC__) && defined(__MSDOS__) 405 | # include 406 | # include 407 | #endif 408 | 409 | /* I have no idea why is this necessary... */ 410 | #if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \ 411 | defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__)) 412 | # include 413 | #endif 414 | 415 | /* This controls how fine the dithering gets. As this allocates 416 | * a largish chunk of memory (32K), those who are not as concerned 417 | * with dithering quality can decrease some or all of these. 418 | */ 419 | #ifndef PNG_DITHER_RED_BITS 420 | # define PNG_DITHER_RED_BITS 5 421 | #endif 422 | #ifndef PNG_DITHER_GREEN_BITS 423 | # define PNG_DITHER_GREEN_BITS 5 424 | #endif 425 | #ifndef PNG_DITHER_BLUE_BITS 426 | # define PNG_DITHER_BLUE_BITS 5 427 | #endif 428 | 429 | /* This controls how fine the gamma correction becomes when you 430 | * are only interested in 8 bits anyway. Increasing this value 431 | * results in more memory being used, and more pow() functions 432 | * being called to fill in the gamma tables. Don't set this value 433 | * less then 8, and even that may not work (I haven't tested it). 434 | */ 435 | 436 | #ifndef PNG_MAX_GAMMA_8 437 | # define PNG_MAX_GAMMA_8 11 438 | #endif 439 | 440 | /* This controls how much a difference in gamma we can tolerate before 441 | * we actually start doing gamma conversion. 442 | */ 443 | #ifndef PNG_GAMMA_THRESHOLD 444 | # define PNG_GAMMA_THRESHOLD 0.05 445 | #endif 446 | 447 | #endif /* PNG_INTERNAL */ 448 | 449 | /* The following uses const char * instead of char * for error 450 | * and warning message functions, so some compilers won't complain. 451 | * If you do not want to use const, define PNG_NO_CONST here. 452 | */ 453 | 454 | #ifndef PNG_NO_CONST 455 | # define PNG_CONST const 456 | #else 457 | # define PNG_CONST 458 | #endif 459 | 460 | /* The following defines give you the ability to remove code from the 461 | * library that you will not be using. I wish I could figure out how to 462 | * automate this, but I can't do that without making it seriously hard 463 | * on the users. So if you are not using an ability, change the #define 464 | * to and #undef, and that part of the library will not be compiled. If 465 | * your linker can't find a function, you may want to make sure the 466 | * ability is defined here. Some of these depend upon some others being 467 | * defined. I haven't figured out all the interactions here, so you may 468 | * have to experiment awhile to get everything to compile. If you are 469 | * creating or using a shared library, you probably shouldn't touch this, 470 | * as it will affect the size of the structures, and this will cause bad 471 | * things to happen if the library and/or application ever change. 472 | */ 473 | 474 | /* Any features you will not be using can be undef'ed here */ 475 | 476 | /* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user 477 | * to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS 478 | * on the compile line, then pick and choose which ones to define without 479 | * having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED 480 | * if you only want to have a png-compliant reader/writer but don't need 481 | * any of the extra transformations. This saves about 80 kbytes in a 482 | * typical installation of the library. (PNG_NO_* form added in version 483 | * 1.0.1c, for consistency) 484 | */ 485 | 486 | /* The size of the png_text structure changed in libpng-1.0.6 when 487 | * iTXt support was added. iTXt support was turned off by default through 488 | * libpng-1.2.x, to support old apps that malloc the png_text structure 489 | * instead of calling png_set_text() and letting libpng malloc it. It 490 | * was turned on by default in libpng-1.3.0. 491 | */ 492 | 493 | #if defined(PNG_1_0_X) || defined (PNG_1_2_X) 494 | # ifndef PNG_NO_iTXt_SUPPORTED 495 | # define PNG_NO_iTXt_SUPPORTED 496 | # endif 497 | # ifndef PNG_NO_READ_iTXt 498 | # define PNG_NO_READ_iTXt 499 | # endif 500 | # ifndef PNG_NO_WRITE_iTXt 501 | # define PNG_NO_WRITE_iTXt 502 | # endif 503 | #endif 504 | 505 | #if !defined(PNG_NO_iTXt_SUPPORTED) 506 | # if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt) 507 | # define PNG_READ_iTXt 508 | # endif 509 | # if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt) 510 | # define PNG_WRITE_iTXt 511 | # endif 512 | #endif 513 | 514 | /* The following support, added after version 1.0.0, can be turned off here en 515 | * masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility 516 | * with old applications that require the length of png_struct and png_info 517 | * to remain unchanged. 518 | */ 519 | 520 | #ifdef PNG_LEGACY_SUPPORTED 521 | # define PNG_NO_FREE_ME 522 | # define PNG_NO_READ_UNKNOWN_CHUNKS 523 | # define PNG_NO_WRITE_UNKNOWN_CHUNKS 524 | # define PNG_NO_READ_USER_CHUNKS 525 | # define PNG_NO_READ_iCCP 526 | # define PNG_NO_WRITE_iCCP 527 | # define PNG_NO_READ_iTXt 528 | # define PNG_NO_WRITE_iTXt 529 | # define PNG_NO_READ_sCAL 530 | # define PNG_NO_WRITE_sCAL 531 | # define PNG_NO_READ_sPLT 532 | # define PNG_NO_WRITE_sPLT 533 | # define PNG_NO_INFO_IMAGE 534 | # define PNG_NO_READ_RGB_TO_GRAY 535 | # define PNG_NO_READ_USER_TRANSFORM 536 | # define PNG_NO_WRITE_USER_TRANSFORM 537 | # define PNG_NO_USER_MEM 538 | # define PNG_NO_READ_EMPTY_PLTE 539 | # define PNG_NO_MNG_FEATURES 540 | # define PNG_NO_FIXED_POINT_SUPPORTED 541 | #endif 542 | 543 | /* Ignore attempt to turn off both floating and fixed point support */ 544 | #if !defined(PNG_FLOATING_POINT_SUPPORTED) || \ 545 | !defined(PNG_NO_FIXED_POINT_SUPPORTED) 546 | # define PNG_FIXED_POINT_SUPPORTED 547 | #endif 548 | 549 | #ifndef PNG_NO_FREE_ME 550 | # define PNG_FREE_ME_SUPPORTED 551 | #endif 552 | 553 | #if defined(PNG_READ_SUPPORTED) 554 | 555 | #if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \ 556 | !defined(PNG_NO_READ_TRANSFORMS) 557 | # define PNG_READ_TRANSFORMS_SUPPORTED 558 | #endif 559 | 560 | #ifdef PNG_READ_TRANSFORMS_SUPPORTED 561 | # ifndef PNG_NO_READ_EXPAND 562 | # define PNG_READ_EXPAND_SUPPORTED 563 | # endif 564 | # ifndef PNG_NO_READ_SHIFT 565 | # define PNG_READ_SHIFT_SUPPORTED 566 | # endif 567 | # ifndef PNG_NO_READ_PACK 568 | # define PNG_READ_PACK_SUPPORTED 569 | # endif 570 | # ifndef PNG_NO_READ_BGR 571 | # define PNG_READ_BGR_SUPPORTED 572 | # endif 573 | # ifndef PNG_NO_READ_SWAP 574 | # define PNG_READ_SWAP_SUPPORTED 575 | # endif 576 | # ifndef PNG_NO_READ_PACKSWAP 577 | # define PNG_READ_PACKSWAP_SUPPORTED 578 | # endif 579 | # ifndef PNG_NO_READ_INVERT 580 | # define PNG_READ_INVERT_SUPPORTED 581 | # endif 582 | # ifndef PNG_NO_READ_DITHER 583 | # define PNG_READ_DITHER_SUPPORTED 584 | # endif 585 | # ifndef PNG_NO_READ_BACKGROUND 586 | # define PNG_READ_BACKGROUND_SUPPORTED 587 | # endif 588 | # ifndef PNG_NO_READ_16_TO_8 589 | # define PNG_READ_16_TO_8_SUPPORTED 590 | # endif 591 | # ifndef PNG_NO_READ_FILLER 592 | # define PNG_READ_FILLER_SUPPORTED 593 | # endif 594 | # ifndef PNG_NO_READ_GAMMA 595 | # define PNG_READ_GAMMA_SUPPORTED 596 | # endif 597 | # ifndef PNG_NO_READ_GRAY_TO_RGB 598 | # define PNG_READ_GRAY_TO_RGB_SUPPORTED 599 | # endif 600 | # ifndef PNG_NO_READ_SWAP_ALPHA 601 | # define PNG_READ_SWAP_ALPHA_SUPPORTED 602 | # endif 603 | # ifndef PNG_NO_READ_INVERT_ALPHA 604 | # define PNG_READ_INVERT_ALPHA_SUPPORTED 605 | # endif 606 | # ifndef PNG_NO_READ_STRIP_ALPHA 607 | # define PNG_READ_STRIP_ALPHA_SUPPORTED 608 | # endif 609 | # ifndef PNG_NO_READ_USER_TRANSFORM 610 | # define PNG_READ_USER_TRANSFORM_SUPPORTED 611 | # endif 612 | # ifndef PNG_NO_READ_RGB_TO_GRAY 613 | # define PNG_READ_RGB_TO_GRAY_SUPPORTED 614 | # endif 615 | #endif /* PNG_READ_TRANSFORMS_SUPPORTED */ 616 | 617 | #if !defined(PNG_NO_PROGRESSIVE_READ) && \ 618 | !defined(PNG_PROGRESSIVE_READ_SUPPORTED) /* if you don't do progressive */ 619 | # define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */ 620 | #endif /* about interlacing capability! You'll */ 621 | /* still have interlacing unless you change the following line: */ 622 | 623 | #define PNG_READ_INTERLACING_SUPPORTED /* required in PNG-compliant decoders */ 624 | 625 | #ifndef PNG_NO_READ_COMPOSITE_NODIV 626 | # ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */ 627 | # define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */ 628 | # endif 629 | #endif 630 | 631 | #if defined(PNG_1_0_X) || defined (PNG_1_2_X) 632 | /* Deprecated, will be removed from version 2.0.0. 633 | Use PNG_MNG_FEATURES_SUPPORTED instead. */ 634 | #ifndef PNG_NO_READ_EMPTY_PLTE 635 | # define PNG_READ_EMPTY_PLTE_SUPPORTED 636 | #endif 637 | #endif 638 | 639 | #endif /* PNG_READ_SUPPORTED */ 640 | 641 | #if defined(PNG_WRITE_SUPPORTED) 642 | 643 | # if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \ 644 | !defined(PNG_NO_WRITE_TRANSFORMS) 645 | # define PNG_WRITE_TRANSFORMS_SUPPORTED 646 | #endif 647 | 648 | #ifdef PNG_WRITE_TRANSFORMS_SUPPORTED 649 | # ifndef PNG_NO_WRITE_SHIFT 650 | # define PNG_WRITE_SHIFT_SUPPORTED 651 | # endif 652 | # ifndef PNG_NO_WRITE_PACK 653 | # define PNG_WRITE_PACK_SUPPORTED 654 | # endif 655 | # ifndef PNG_NO_WRITE_BGR 656 | # define PNG_WRITE_BGR_SUPPORTED 657 | # endif 658 | # ifndef PNG_NO_WRITE_SWAP 659 | # define PNG_WRITE_SWAP_SUPPORTED 660 | # endif 661 | # ifndef PNG_NO_WRITE_PACKSWAP 662 | # define PNG_WRITE_PACKSWAP_SUPPORTED 663 | # endif 664 | # ifndef PNG_NO_WRITE_INVERT 665 | # define PNG_WRITE_INVERT_SUPPORTED 666 | # endif 667 | # ifndef PNG_NO_WRITE_FILLER 668 | # define PNG_WRITE_FILLER_SUPPORTED /* same as WRITE_STRIP_ALPHA */ 669 | # endif 670 | # ifndef PNG_NO_WRITE_SWAP_ALPHA 671 | # define PNG_WRITE_SWAP_ALPHA_SUPPORTED 672 | # endif 673 | # ifndef PNG_NO_WRITE_INVERT_ALPHA 674 | # define PNG_WRITE_INVERT_ALPHA_SUPPORTED 675 | # endif 676 | # ifndef PNG_NO_WRITE_USER_TRANSFORM 677 | # define PNG_WRITE_USER_TRANSFORM_SUPPORTED 678 | # endif 679 | #endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */ 680 | 681 | #if !defined(PNG_NO_WRITE_INTERLACING_SUPPORTED) && \ 682 | !defined(PNG_WRITE_INTERLACING_SUPPORTED) 683 | #define PNG_WRITE_INTERLACING_SUPPORTED /* not required for PNG-compliant 684 | encoders, but can cause trouble 685 | if left undefined */ 686 | #endif 687 | 688 | #if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \ 689 | !defined(PNG_WRITE_WEIGHTED_FILTER) && \ 690 | defined(PNG_FLOATING_POINT_SUPPORTED) 691 | # define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED 692 | #endif 693 | 694 | #ifndef PNG_NO_WRITE_FLUSH 695 | # define PNG_WRITE_FLUSH_SUPPORTED 696 | #endif 697 | 698 | #if defined(PNG_1_0_X) || defined (PNG_1_2_X) 699 | /* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */ 700 | #ifndef PNG_NO_WRITE_EMPTY_PLTE 701 | # define PNG_WRITE_EMPTY_PLTE_SUPPORTED 702 | #endif 703 | #endif 704 | 705 | #endif /* PNG_WRITE_SUPPORTED */ 706 | 707 | #ifndef PNG_1_0_X 708 | # ifndef PNG_NO_ERROR_NUMBERS 709 | # define PNG_ERROR_NUMBERS_SUPPORTED 710 | # endif 711 | #endif /* PNG_1_0_X */ 712 | 713 | #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ 714 | defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) 715 | # ifndef PNG_NO_USER_TRANSFORM_PTR 716 | # define PNG_USER_TRANSFORM_PTR_SUPPORTED 717 | # endif 718 | #endif 719 | 720 | #ifndef PNG_NO_STDIO 721 | # define PNG_TIME_RFC1123_SUPPORTED 722 | #endif 723 | 724 | /* This adds extra functions in pngget.c for accessing data from the 725 | * info pointer (added in version 0.99) 726 | * png_get_image_width() 727 | * png_get_image_height() 728 | * png_get_bit_depth() 729 | * png_get_color_type() 730 | * png_get_compression_type() 731 | * png_get_filter_type() 732 | * png_get_interlace_type() 733 | * png_get_pixel_aspect_ratio() 734 | * png_get_pixels_per_meter() 735 | * png_get_x_offset_pixels() 736 | * png_get_y_offset_pixels() 737 | * png_get_x_offset_microns() 738 | * png_get_y_offset_microns() 739 | */ 740 | #if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED) 741 | # define PNG_EASY_ACCESS_SUPPORTED 742 | #endif 743 | 744 | /* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0 745 | * and removed from version 1.2.20. The following will be removed 746 | * from libpng-1.4.0 747 | */ 748 | 749 | #if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_OPTIMIZED_CODE) 750 | # ifndef PNG_OPTIMIZED_CODE_SUPPORTED 751 | # define PNG_OPTIMIZED_CODE_SUPPORTED 752 | # endif 753 | #endif 754 | 755 | #if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE) && defined(__i386__) 756 | # ifndef PNG_ASSEMBLER_CODE_SUPPORTED 757 | # define PNG_ASSEMBLER_CODE_SUPPORTED 758 | # endif 759 | 760 | # if defined(__GNUC__) && defined(__x86_64__) && (__GNUC__ < 4) 761 | /* work around 64-bit gcc compiler bugs in gcc-3.x */ 762 | # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) 763 | # define PNG_NO_MMX_CODE 764 | # endif 765 | # endif 766 | 767 | # if defined(__APPLE__) 768 | # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) 769 | # define PNG_NO_MMX_CODE 770 | # endif 771 | # endif 772 | 773 | # if (defined(__MWERKS__) && ((__MWERKS__ < 0x0900) || macintosh)) 774 | # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) 775 | # define PNG_NO_MMX_CODE 776 | # endif 777 | # endif 778 | 779 | # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) 780 | # define PNG_MMX_CODE_SUPPORTED 781 | # endif 782 | 783 | #endif 784 | /* end of obsolete code to be removed from libpng-1.4.0 */ 785 | 786 | #if !defined(PNG_1_0_X) 787 | #if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED) 788 | # define PNG_USER_MEM_SUPPORTED 789 | #endif 790 | #endif /* PNG_1_0_X */ 791 | 792 | /* Added at libpng-1.2.6 */ 793 | #if !defined(PNG_1_0_X) 794 | #ifndef PNG_SET_USER_LIMITS_SUPPORTED 795 | #if !defined(PNG_NO_SET_USER_LIMITS) && !defined(PNG_SET_USER_LIMITS_SUPPORTED) 796 | # define PNG_SET_USER_LIMITS_SUPPORTED 797 | #endif 798 | #endif 799 | #endif /* PNG_1_0_X */ 800 | 801 | /* Added at libpng-1.0.16 and 1.2.6. To accept all valid PNGS no matter 802 | * how large, set these limits to 0x7fffffffL 803 | */ 804 | #ifndef PNG_USER_WIDTH_MAX 805 | # define PNG_USER_WIDTH_MAX 1000000L 806 | #endif 807 | #ifndef PNG_USER_HEIGHT_MAX 808 | # define PNG_USER_HEIGHT_MAX 1000000L 809 | #endif 810 | 811 | /* Added at libpng-1.2.34 and 1.4.0 */ 812 | #ifndef PNG_STRING_NEWLINE 813 | #define PNG_STRING_NEWLINE "\n" 814 | #endif 815 | 816 | /* These are currently experimental features, define them if you want */ 817 | 818 | /* very little testing */ 819 | /* 820 | #ifdef PNG_READ_SUPPORTED 821 | # ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED 822 | # define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED 823 | # endif 824 | #endif 825 | */ 826 | 827 | /* This is only for PowerPC big-endian and 680x0 systems */ 828 | /* some testing */ 829 | /* 830 | #ifndef PNG_READ_BIG_ENDIAN_SUPPORTED 831 | # define PNG_READ_BIG_ENDIAN_SUPPORTED 832 | #endif 833 | */ 834 | 835 | /* Buggy compilers (e.g., gcc 2.7.2.2) need this */ 836 | /* 837 | #define PNG_NO_POINTER_INDEXING 838 | */ 839 | 840 | /* These functions are turned off by default, as they will be phased out. */ 841 | /* 842 | #define PNG_USELESS_TESTS_SUPPORTED 843 | #define PNG_CORRECT_PALETTE_SUPPORTED 844 | */ 845 | 846 | /* Any chunks you are not interested in, you can undef here. The 847 | * ones that allocate memory may be expecially important (hIST, 848 | * tEXt, zTXt, tRNS, pCAL). Others will just save time and make png_info 849 | * a bit smaller. 850 | */ 851 | 852 | #if defined(PNG_READ_SUPPORTED) && \ 853 | !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ 854 | !defined(PNG_NO_READ_ANCILLARY_CHUNKS) 855 | # define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED 856 | #endif 857 | 858 | #if defined(PNG_WRITE_SUPPORTED) && \ 859 | !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ 860 | !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS) 861 | # define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED 862 | #endif 863 | 864 | #ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED 865 | 866 | #ifdef PNG_NO_READ_TEXT 867 | # define PNG_NO_READ_iTXt 868 | # define PNG_NO_READ_tEXt 869 | # define PNG_NO_READ_zTXt 870 | #endif 871 | #ifndef PNG_NO_READ_bKGD 872 | # define PNG_READ_bKGD_SUPPORTED 873 | # define PNG_bKGD_SUPPORTED 874 | #endif 875 | #ifndef PNG_NO_READ_cHRM 876 | # define PNG_READ_cHRM_SUPPORTED 877 | # define PNG_cHRM_SUPPORTED 878 | #endif 879 | #ifndef PNG_NO_READ_gAMA 880 | # define PNG_READ_gAMA_SUPPORTED 881 | # define PNG_gAMA_SUPPORTED 882 | #endif 883 | #ifndef PNG_NO_READ_hIST 884 | # define PNG_READ_hIST_SUPPORTED 885 | # define PNG_hIST_SUPPORTED 886 | #endif 887 | #ifndef PNG_NO_READ_iCCP 888 | # define PNG_READ_iCCP_SUPPORTED 889 | # define PNG_iCCP_SUPPORTED 890 | #endif 891 | #ifndef PNG_NO_READ_iTXt 892 | # ifndef PNG_READ_iTXt_SUPPORTED 893 | # define PNG_READ_iTXt_SUPPORTED 894 | # endif 895 | # ifndef PNG_iTXt_SUPPORTED 896 | # define PNG_iTXt_SUPPORTED 897 | # endif 898 | #endif 899 | #ifndef PNG_NO_READ_oFFs 900 | # define PNG_READ_oFFs_SUPPORTED 901 | # define PNG_oFFs_SUPPORTED 902 | #endif 903 | #ifndef PNG_NO_READ_pCAL 904 | # define PNG_READ_pCAL_SUPPORTED 905 | # define PNG_pCAL_SUPPORTED 906 | #endif 907 | #ifndef PNG_NO_READ_sCAL 908 | # define PNG_READ_sCAL_SUPPORTED 909 | # define PNG_sCAL_SUPPORTED 910 | #endif 911 | #ifndef PNG_NO_READ_pHYs 912 | # define PNG_READ_pHYs_SUPPORTED 913 | # define PNG_pHYs_SUPPORTED 914 | #endif 915 | #ifndef PNG_NO_READ_sBIT 916 | # define PNG_READ_sBIT_SUPPORTED 917 | # define PNG_sBIT_SUPPORTED 918 | #endif 919 | #ifndef PNG_NO_READ_sPLT 920 | # define PNG_READ_sPLT_SUPPORTED 921 | # define PNG_sPLT_SUPPORTED 922 | #endif 923 | #ifndef PNG_NO_READ_sRGB 924 | # define PNG_READ_sRGB_SUPPORTED 925 | # define PNG_sRGB_SUPPORTED 926 | #endif 927 | #ifndef PNG_NO_READ_tEXt 928 | # define PNG_READ_tEXt_SUPPORTED 929 | # define PNG_tEXt_SUPPORTED 930 | #endif 931 | #ifndef PNG_NO_READ_tIME 932 | # define PNG_READ_tIME_SUPPORTED 933 | # define PNG_tIME_SUPPORTED 934 | #endif 935 | #ifndef PNG_NO_READ_tRNS 936 | # define PNG_READ_tRNS_SUPPORTED 937 | # define PNG_tRNS_SUPPORTED 938 | #endif 939 | #ifndef PNG_NO_READ_zTXt 940 | # define PNG_READ_zTXt_SUPPORTED 941 | # define PNG_zTXt_SUPPORTED 942 | #endif 943 | #ifndef PNG_NO_READ_UNKNOWN_CHUNKS 944 | # define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED 945 | # ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED 946 | # define PNG_UNKNOWN_CHUNKS_SUPPORTED 947 | # endif 948 | # ifndef PNG_NO_HANDLE_AS_UNKNOWN 949 | # define PNG_HANDLE_AS_UNKNOWN_SUPPORTED 950 | # endif 951 | #endif 952 | #if !defined(PNG_NO_READ_USER_CHUNKS) && \ 953 | defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) 954 | # define PNG_READ_USER_CHUNKS_SUPPORTED 955 | # define PNG_USER_CHUNKS_SUPPORTED 956 | # ifdef PNG_NO_READ_UNKNOWN_CHUNKS 957 | # undef PNG_NO_READ_UNKNOWN_CHUNKS 958 | # endif 959 | # ifdef PNG_NO_HANDLE_AS_UNKNOWN 960 | # undef PNG_NO_HANDLE_AS_UNKNOWN 961 | # endif 962 | #endif 963 | #ifndef PNG_NO_READ_OPT_PLTE 964 | # define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */ 965 | #endif /* optional PLTE chunk in RGB and RGBA images */ 966 | #if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \ 967 | defined(PNG_READ_zTXt_SUPPORTED) 968 | # define PNG_READ_TEXT_SUPPORTED 969 | # define PNG_TEXT_SUPPORTED 970 | #endif 971 | 972 | #endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */ 973 | 974 | #ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED 975 | 976 | #ifdef PNG_NO_WRITE_TEXT 977 | # define PNG_NO_WRITE_iTXt 978 | # define PNG_NO_WRITE_tEXt 979 | # define PNG_NO_WRITE_zTXt 980 | #endif 981 | #ifndef PNG_NO_WRITE_bKGD 982 | # define PNG_WRITE_bKGD_SUPPORTED 983 | # ifndef PNG_bKGD_SUPPORTED 984 | # define PNG_bKGD_SUPPORTED 985 | # endif 986 | #endif 987 | #ifndef PNG_NO_WRITE_cHRM 988 | # define PNG_WRITE_cHRM_SUPPORTED 989 | # ifndef PNG_cHRM_SUPPORTED 990 | # define PNG_cHRM_SUPPORTED 991 | # endif 992 | #endif 993 | #ifndef PNG_NO_WRITE_gAMA 994 | # define PNG_WRITE_gAMA_SUPPORTED 995 | # ifndef PNG_gAMA_SUPPORTED 996 | # define PNG_gAMA_SUPPORTED 997 | # endif 998 | #endif 999 | #ifndef PNG_NO_WRITE_hIST 1000 | # define PNG_WRITE_hIST_SUPPORTED 1001 | # ifndef PNG_hIST_SUPPORTED 1002 | # define PNG_hIST_SUPPORTED 1003 | # endif 1004 | #endif 1005 | #ifndef PNG_NO_WRITE_iCCP 1006 | # define PNG_WRITE_iCCP_SUPPORTED 1007 | # ifndef PNG_iCCP_SUPPORTED 1008 | # define PNG_iCCP_SUPPORTED 1009 | # endif 1010 | #endif 1011 | #ifndef PNG_NO_WRITE_iTXt 1012 | # ifndef PNG_WRITE_iTXt_SUPPORTED 1013 | # define PNG_WRITE_iTXt_SUPPORTED 1014 | # endif 1015 | # ifndef PNG_iTXt_SUPPORTED 1016 | # define PNG_iTXt_SUPPORTED 1017 | # endif 1018 | #endif 1019 | #ifndef PNG_NO_WRITE_oFFs 1020 | # define PNG_WRITE_oFFs_SUPPORTED 1021 | # ifndef PNG_oFFs_SUPPORTED 1022 | # define PNG_oFFs_SUPPORTED 1023 | # endif 1024 | #endif 1025 | #ifndef PNG_NO_WRITE_pCAL 1026 | # define PNG_WRITE_pCAL_SUPPORTED 1027 | # ifndef PNG_pCAL_SUPPORTED 1028 | # define PNG_pCAL_SUPPORTED 1029 | # endif 1030 | #endif 1031 | #ifndef PNG_NO_WRITE_sCAL 1032 | # define PNG_WRITE_sCAL_SUPPORTED 1033 | # ifndef PNG_sCAL_SUPPORTED 1034 | # define PNG_sCAL_SUPPORTED 1035 | # endif 1036 | #endif 1037 | #ifndef PNG_NO_WRITE_pHYs 1038 | # define PNG_WRITE_pHYs_SUPPORTED 1039 | # ifndef PNG_pHYs_SUPPORTED 1040 | # define PNG_pHYs_SUPPORTED 1041 | # endif 1042 | #endif 1043 | #ifndef PNG_NO_WRITE_sBIT 1044 | # define PNG_WRITE_sBIT_SUPPORTED 1045 | # ifndef PNG_sBIT_SUPPORTED 1046 | # define PNG_sBIT_SUPPORTED 1047 | # endif 1048 | #endif 1049 | #ifndef PNG_NO_WRITE_sPLT 1050 | # define PNG_WRITE_sPLT_SUPPORTED 1051 | # ifndef PNG_sPLT_SUPPORTED 1052 | # define PNG_sPLT_SUPPORTED 1053 | # endif 1054 | #endif 1055 | #ifndef PNG_NO_WRITE_sRGB 1056 | # define PNG_WRITE_sRGB_SUPPORTED 1057 | # ifndef PNG_sRGB_SUPPORTED 1058 | # define PNG_sRGB_SUPPORTED 1059 | # endif 1060 | #endif 1061 | #ifndef PNG_NO_WRITE_tEXt 1062 | # define PNG_WRITE_tEXt_SUPPORTED 1063 | # ifndef PNG_tEXt_SUPPORTED 1064 | # define PNG_tEXt_SUPPORTED 1065 | # endif 1066 | #endif 1067 | #ifndef PNG_NO_WRITE_tIME 1068 | # define PNG_WRITE_tIME_SUPPORTED 1069 | # ifndef PNG_tIME_SUPPORTED 1070 | # define PNG_tIME_SUPPORTED 1071 | # endif 1072 | #endif 1073 | #ifndef PNG_NO_WRITE_tRNS 1074 | # define PNG_WRITE_tRNS_SUPPORTED 1075 | # ifndef PNG_tRNS_SUPPORTED 1076 | # define PNG_tRNS_SUPPORTED 1077 | # endif 1078 | #endif 1079 | #ifndef PNG_NO_WRITE_zTXt 1080 | # define PNG_WRITE_zTXt_SUPPORTED 1081 | # ifndef PNG_zTXt_SUPPORTED 1082 | # define PNG_zTXt_SUPPORTED 1083 | # endif 1084 | #endif 1085 | #ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS 1086 | # define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED 1087 | # ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED 1088 | # define PNG_UNKNOWN_CHUNKS_SUPPORTED 1089 | # endif 1090 | # ifndef PNG_NO_HANDLE_AS_UNKNOWN 1091 | # ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED 1092 | # define PNG_HANDLE_AS_UNKNOWN_SUPPORTED 1093 | # endif 1094 | # endif 1095 | #endif 1096 | #if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \ 1097 | defined(PNG_WRITE_zTXt_SUPPORTED) 1098 | # define PNG_WRITE_TEXT_SUPPORTED 1099 | # ifndef PNG_TEXT_SUPPORTED 1100 | # define PNG_TEXT_SUPPORTED 1101 | # endif 1102 | #endif 1103 | 1104 | #endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */ 1105 | 1106 | /* Turn this off to disable png_read_png() and 1107 | * png_write_png() and leave the row_pointers member 1108 | * out of the info structure. 1109 | */ 1110 | #ifndef PNG_NO_INFO_IMAGE 1111 | # define PNG_INFO_IMAGE_SUPPORTED 1112 | #endif 1113 | 1114 | /* need the time information for reading tIME chunks */ 1115 | #if defined(PNG_tIME_SUPPORTED) 1116 | # if !defined(_WIN32_WCE) 1117 | /* "time.h" functions are not supported on WindowsCE */ 1118 | # include 1119 | # endif 1120 | #endif 1121 | 1122 | /* Some typedefs to get us started. These should be safe on most of the 1123 | * common platforms. The typedefs should be at least as large as the 1124 | * numbers suggest (a png_uint_32 must be at least 32 bits long), but they 1125 | * don't have to be exactly that size. Some compilers dislike passing 1126 | * unsigned shorts as function parameters, so you may be better off using 1127 | * unsigned int for png_uint_16. Likewise, for 64-bit systems, you may 1128 | * want to have unsigned int for png_uint_32 instead of unsigned long. 1129 | */ 1130 | 1131 | typedef unsigned long png_uint_32; 1132 | typedef long png_int_32; 1133 | typedef unsigned short png_uint_16; 1134 | typedef short png_int_16; 1135 | typedef unsigned char png_byte; 1136 | 1137 | /* This is usually size_t. It is typedef'ed just in case you need it to 1138 | change (I'm not sure if you will or not, so I thought I'd be safe) */ 1139 | #ifdef PNG_SIZE_T 1140 | typedef PNG_SIZE_T png_size_t; 1141 | # define png_sizeof(x) png_convert_size(sizeof(x)) 1142 | #else 1143 | typedef size_t png_size_t; 1144 | # define png_sizeof(x) sizeof(x) 1145 | #endif 1146 | 1147 | /* The following is needed for medium model support. It cannot be in the 1148 | * PNG_INTERNAL section. Needs modification for other compilers besides 1149 | * MSC. Model independent support declares all arrays and pointers to be 1150 | * large using the far keyword. The zlib version used must also support 1151 | * model independent data. As of version zlib 1.0.4, the necessary changes 1152 | * have been made in zlib. The USE_FAR_KEYWORD define triggers other 1153 | * changes that are needed. (Tim Wegner) 1154 | */ 1155 | 1156 | /* Separate compiler dependencies (problem here is that zlib.h always 1157 | defines FAR. (SJT) */ 1158 | #ifdef __BORLANDC__ 1159 | # if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__) 1160 | # define LDATA 1 1161 | # else 1162 | # define LDATA 0 1163 | # endif 1164 | /* GRR: why is Cygwin in here? Cygwin is not Borland C... */ 1165 | # if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__) 1166 | # define PNG_MAX_MALLOC_64K 1167 | # if (LDATA != 1) 1168 | # ifndef FAR 1169 | # define FAR __far 1170 | # endif 1171 | # define USE_FAR_KEYWORD 1172 | # endif /* LDATA != 1 */ 1173 | /* Possibly useful for moving data out of default segment. 1174 | * Uncomment it if you want. Could also define FARDATA as 1175 | * const if your compiler supports it. (SJT) 1176 | # define FARDATA FAR 1177 | */ 1178 | # endif /* __WIN32__, __FLAT__, __CYGWIN__ */ 1179 | #endif /* __BORLANDC__ */ 1180 | 1181 | 1182 | /* Suggest testing for specific compiler first before testing for 1183 | * FAR. The Watcom compiler defines both __MEDIUM__ and M_I86MM, 1184 | * making reliance oncertain keywords suspect. (SJT) 1185 | */ 1186 | 1187 | /* MSC Medium model */ 1188 | #if defined(FAR) 1189 | # if defined(M_I86MM) 1190 | # define USE_FAR_KEYWORD 1191 | # define FARDATA FAR 1192 | # include 1193 | # endif 1194 | #endif 1195 | 1196 | /* SJT: default case */ 1197 | #ifndef FAR 1198 | # define FAR 1199 | #endif 1200 | 1201 | /* At this point FAR is always defined */ 1202 | #ifndef FARDATA 1203 | # define FARDATA 1204 | #endif 1205 | 1206 | /* Typedef for floating-point numbers that are converted 1207 | to fixed-point with a multiple of 100,000, e.g., int_gamma */ 1208 | typedef png_int_32 png_fixed_point; 1209 | 1210 | /* Add typedefs for pointers */ 1211 | typedef void FAR * png_voidp; 1212 | typedef png_byte FAR * png_bytep; 1213 | typedef png_uint_32 FAR * png_uint_32p; 1214 | typedef png_int_32 FAR * png_int_32p; 1215 | typedef png_uint_16 FAR * png_uint_16p; 1216 | typedef png_int_16 FAR * png_int_16p; 1217 | typedef PNG_CONST char FAR * png_const_charp; 1218 | typedef char FAR * png_charp; 1219 | typedef png_fixed_point FAR * png_fixed_point_p; 1220 | 1221 | #ifndef PNG_NO_STDIO 1222 | #if defined(_WIN32_WCE) 1223 | typedef HANDLE png_FILE_p; 1224 | #else 1225 | typedef FILE * png_FILE_p; 1226 | #endif 1227 | #endif 1228 | 1229 | #ifdef PNG_FLOATING_POINT_SUPPORTED 1230 | typedef double FAR * png_doublep; 1231 | #endif 1232 | 1233 | /* Pointers to pointers; i.e. arrays */ 1234 | typedef png_byte FAR * FAR * png_bytepp; 1235 | typedef png_uint_32 FAR * FAR * png_uint_32pp; 1236 | typedef png_int_32 FAR * FAR * png_int_32pp; 1237 | typedef png_uint_16 FAR * FAR * png_uint_16pp; 1238 | typedef png_int_16 FAR * FAR * png_int_16pp; 1239 | typedef PNG_CONST char FAR * FAR * png_const_charpp; 1240 | typedef char FAR * FAR * png_charpp; 1241 | typedef png_fixed_point FAR * FAR * png_fixed_point_pp; 1242 | #ifdef PNG_FLOATING_POINT_SUPPORTED 1243 | typedef double FAR * FAR * png_doublepp; 1244 | #endif 1245 | 1246 | /* Pointers to pointers to pointers; i.e., pointer to array */ 1247 | typedef char FAR * FAR * FAR * png_charppp; 1248 | 1249 | #if defined(PNG_1_0_X) || defined(PNG_1_2_X) 1250 | /* SPC - Is this stuff deprecated? */ 1251 | /* It'll be removed as of libpng-1.3.0 - GR-P */ 1252 | /* libpng typedefs for types in zlib. If zlib changes 1253 | * or another compression library is used, then change these. 1254 | * Eliminates need to change all the source files. 1255 | */ 1256 | typedef charf * png_zcharp; 1257 | typedef charf * FAR * png_zcharpp; 1258 | typedef z_stream FAR * png_zstreamp; 1259 | #endif /* (PNG_1_0_X) || defined(PNG_1_2_X) */ 1260 | 1261 | /* 1262 | * Define PNG_BUILD_DLL if the module being built is a Windows 1263 | * LIBPNG DLL. 1264 | * 1265 | * Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL. 1266 | * It is equivalent to Microsoft predefined macro _DLL that is 1267 | * automatically defined when you compile using the share 1268 | * version of the CRT (C Run-Time library) 1269 | * 1270 | * The cygwin mods make this behavior a little different: 1271 | * Define PNG_BUILD_DLL if you are building a dll for use with cygwin 1272 | * Define PNG_STATIC if you are building a static library for use with cygwin, 1273 | * -or- if you are building an application that you want to link to the 1274 | * static library. 1275 | * PNG_USE_DLL is defined by default (no user action needed) unless one of 1276 | * the other flags is defined. 1277 | */ 1278 | 1279 | #if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL)) 1280 | # define PNG_DLL 1281 | #endif 1282 | /* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib. 1283 | * When building a static lib, default to no GLOBAL ARRAYS, but allow 1284 | * command-line override 1285 | */ 1286 | #if defined(__CYGWIN__) 1287 | # if !defined(PNG_STATIC) 1288 | # if defined(PNG_USE_GLOBAL_ARRAYS) 1289 | # undef PNG_USE_GLOBAL_ARRAYS 1290 | # endif 1291 | # if !defined(PNG_USE_LOCAL_ARRAYS) 1292 | # define PNG_USE_LOCAL_ARRAYS 1293 | # endif 1294 | # else 1295 | # if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS) 1296 | # if defined(PNG_USE_GLOBAL_ARRAYS) 1297 | # undef PNG_USE_GLOBAL_ARRAYS 1298 | # endif 1299 | # endif 1300 | # endif 1301 | # if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS) 1302 | # define PNG_USE_LOCAL_ARRAYS 1303 | # endif 1304 | #endif 1305 | 1306 | /* Do not use global arrays (helps with building DLL's) 1307 | * They are no longer used in libpng itself, since version 1.0.5c, 1308 | * but might be required for some pre-1.0.5c applications. 1309 | */ 1310 | #if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS) 1311 | # if defined(PNG_NO_GLOBAL_ARRAYS) || \ 1312 | (defined(__GNUC__) && defined(PNG_DLL)) || defined(_MSC_VER) 1313 | # define PNG_USE_LOCAL_ARRAYS 1314 | # else 1315 | # define PNG_USE_GLOBAL_ARRAYS 1316 | # endif 1317 | #endif 1318 | 1319 | #if defined(__CYGWIN__) 1320 | # undef PNGAPI 1321 | # define PNGAPI __cdecl 1322 | # undef PNG_IMPEXP 1323 | # define PNG_IMPEXP 1324 | #endif 1325 | 1326 | /* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall", 1327 | * you may get warnings regarding the linkage of png_zalloc and png_zfree. 1328 | * Don't ignore those warnings; you must also reset the default calling 1329 | * convention in your compiler to match your PNGAPI, and you must build 1330 | * zlib and your applications the same way you build libpng. 1331 | */ 1332 | 1333 | #if defined(__MINGW32__) && !defined(PNG_MODULEDEF) 1334 | # ifndef PNG_NO_MODULEDEF 1335 | # define PNG_NO_MODULEDEF 1336 | # endif 1337 | #endif 1338 | 1339 | #if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF) 1340 | # define PNG_IMPEXP 1341 | #endif 1342 | 1343 | #if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \ 1344 | (( defined(_Windows) || defined(_WINDOWS) || \ 1345 | defined(WIN32) || defined(_WIN32) || defined(__WIN32__) )) 1346 | 1347 | # ifndef PNGAPI 1348 | # if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800)) 1349 | # define PNGAPI __cdecl 1350 | # else 1351 | # define PNGAPI _cdecl 1352 | # endif 1353 | # endif 1354 | 1355 | # if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \ 1356 | 0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */) 1357 | # define PNG_IMPEXP 1358 | # endif 1359 | 1360 | # if !defined(PNG_IMPEXP) 1361 | 1362 | # define PNG_EXPORT_TYPE1(type,symbol) PNG_IMPEXP type PNGAPI symbol 1363 | # define PNG_EXPORT_TYPE2(type,symbol) type PNG_IMPEXP PNGAPI symbol 1364 | 1365 | /* Borland/Microsoft */ 1366 | # if defined(_MSC_VER) || defined(__BORLANDC__) 1367 | # if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500) 1368 | # define PNG_EXPORT PNG_EXPORT_TYPE1 1369 | # else 1370 | # define PNG_EXPORT PNG_EXPORT_TYPE2 1371 | # if defined(PNG_BUILD_DLL) 1372 | # define PNG_IMPEXP __export 1373 | # else 1374 | # define PNG_IMPEXP /*__import */ /* doesn't exist AFAIK in 1375 | VC++ */ 1376 | # endif /* Exists in Borland C++ for 1377 | C++ classes (== huge) */ 1378 | # endif 1379 | # endif 1380 | 1381 | # if !defined(PNG_IMPEXP) 1382 | # if defined(PNG_BUILD_DLL) 1383 | # define PNG_IMPEXP __declspec(dllexport) 1384 | # else 1385 | # define PNG_IMPEXP __declspec(dllimport) 1386 | # endif 1387 | # endif 1388 | # endif /* PNG_IMPEXP */ 1389 | #else /* !(DLL || non-cygwin WINDOWS) */ 1390 | # if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__) 1391 | # ifndef PNGAPI 1392 | # define PNGAPI _System 1393 | # endif 1394 | # else 1395 | # if 0 /* ... other platforms, with other meanings */ 1396 | # endif 1397 | # endif 1398 | #endif 1399 | 1400 | #ifndef PNGAPI 1401 | # define PNGAPI 1402 | #endif 1403 | #ifndef PNG_IMPEXP 1404 | # define PNG_IMPEXP 1405 | #endif 1406 | 1407 | #ifdef PNG_BUILDSYMS 1408 | # ifndef PNG_EXPORT 1409 | # define PNG_EXPORT(type,symbol) PNG_FUNCTION_EXPORT symbol END 1410 | # endif 1411 | # ifdef PNG_USE_GLOBAL_ARRAYS 1412 | # ifndef PNG_EXPORT_VAR 1413 | # define PNG_EXPORT_VAR(type) PNG_DATA_EXPORT 1414 | # endif 1415 | # endif 1416 | #endif 1417 | 1418 | #ifndef PNG_EXPORT 1419 | # define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol 1420 | #endif 1421 | 1422 | #ifdef PNG_USE_GLOBAL_ARRAYS 1423 | # ifndef PNG_EXPORT_VAR 1424 | # define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type 1425 | # endif 1426 | #endif 1427 | 1428 | /* User may want to use these so they are not in PNG_INTERNAL. Any library 1429 | * functions that are passed far data must be model independent. 1430 | */ 1431 | 1432 | #ifndef PNG_ABORT 1433 | # define PNG_ABORT() abort() 1434 | #endif 1435 | 1436 | #ifdef PNG_SETJMP_SUPPORTED 1437 | # define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf) 1438 | #else 1439 | # define png_jmpbuf(png_ptr) \ 1440 | (LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED) 1441 | #endif 1442 | 1443 | #if defined(USE_FAR_KEYWORD) /* memory model independent fns */ 1444 | /* use this to make far-to-near assignments */ 1445 | # define CHECK 1 1446 | # define NOCHECK 0 1447 | # define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK)) 1448 | # define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK)) 1449 | # define png_snprintf _fsnprintf /* Added to v 1.2.19 */ 1450 | # define png_strlen _fstrlen 1451 | # define png_memcmp _fmemcmp /* SJT: added */ 1452 | # define png_memcpy _fmemcpy 1453 | # define png_memset _fmemset 1454 | #else /* use the usual functions */ 1455 | # define CVT_PTR(ptr) (ptr) 1456 | # define CVT_PTR_NOCHECK(ptr) (ptr) 1457 | # ifndef PNG_NO_SNPRINTF 1458 | # ifdef _MSC_VER 1459 | # define png_snprintf _snprintf /* Added to v 1.2.19 */ 1460 | # define png_snprintf2 _snprintf 1461 | # define png_snprintf6 _snprintf 1462 | # else 1463 | # define png_snprintf snprintf /* Added to v 1.2.19 */ 1464 | # define png_snprintf2 snprintf 1465 | # define png_snprintf6 snprintf 1466 | # endif 1467 | # else 1468 | /* You don't have or don't want to use snprintf(). Caution: Using 1469 | * sprintf instead of snprintf exposes your application to accidental 1470 | * or malevolent buffer overflows. If you don't have snprintf() 1471 | * as a general rule you should provide one (you can get one from 1472 | * Portable OpenSSH). */ 1473 | # define png_snprintf(s1,n,fmt,x1) sprintf(s1,fmt,x1) 1474 | # define png_snprintf2(s1,n,fmt,x1,x2) sprintf(s1,fmt,x1,x2) 1475 | # define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \ 1476 | sprintf(s1,fmt,x1,x2,x3,x4,x5,x6) 1477 | # endif 1478 | # define png_strlen strlen 1479 | # define png_memcmp memcmp /* SJT: added */ 1480 | # define png_memcpy memcpy 1481 | # define png_memset memset 1482 | #endif 1483 | /* End of memory model independent support */ 1484 | 1485 | /* Just a little check that someone hasn't tried to define something 1486 | * contradictory. 1487 | */ 1488 | #if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K) 1489 | # undef PNG_ZBUF_SIZE 1490 | # define PNG_ZBUF_SIZE 65536L 1491 | #endif 1492 | 1493 | /* Added at libpng-1.2.8 */ 1494 | #endif /* PNG_VERSION_INFO_ONLY */ 1495 | 1496 | #endif /* PNGCONF_H */ 1497 | -------------------------------------------------------------------------------- /gyp/include/libpng12/pngconf.h: -------------------------------------------------------------------------------- 1 | 2 | /* pngconf.h - machine configurable file for libpng 3 | * 4 | * libpng version 1.2.37 - June 4, 2009 5 | * For conditions of distribution and use, see copyright notice in png.h 6 | * Copyright (c) 1998-2009 Glenn Randers-Pehrson 7 | * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) 8 | * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) 9 | */ 10 | 11 | /* Any machine specific code is near the front of this file, so if you 12 | * are configuring libpng for a machine, you may want to read the section 13 | * starting here down to where it starts to typedef png_color, png_text, 14 | * and png_info. 15 | */ 16 | 17 | #ifndef PNGCONF_H 18 | #define PNGCONF_H 19 | 20 | #define PNG_1_2_X 21 | 22 | /* 23 | * PNG_USER_CONFIG has to be defined on the compiler command line. This 24 | * includes the resource compiler for Windows DLL configurations. 25 | */ 26 | #ifdef PNG_USER_CONFIG 27 | # ifndef PNG_USER_PRIVATEBUILD 28 | # define PNG_USER_PRIVATEBUILD 29 | # endif 30 | #include "pngusr.h" 31 | #endif 32 | 33 | /* PNG_CONFIGURE_LIBPNG is set by the "configure" script. */ 34 | #ifdef PNG_CONFIGURE_LIBPNG 35 | #ifdef HAVE_CONFIG_H 36 | #include "config.h" 37 | #endif 38 | #endif 39 | 40 | /* 41 | * Added at libpng-1.2.8 42 | * 43 | * If you create a private DLL you need to define in "pngusr.h" the followings: 44 | * #define PNG_USER_PRIVATEBUILD 46 | * e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons." 47 | * #define PNG_USER_DLLFNAME_POSTFIX 51 | * e.g. // private DLL "libpng13gx.dll" 52 | * #define PNG_USER_DLLFNAME_POSTFIX "gx" 53 | * 54 | * The following macros are also at your disposal if you want to complete the 55 | * DLL VERSIONINFO structure. 56 | * - PNG_USER_VERSIONINFO_COMMENTS 57 | * - PNG_USER_VERSIONINFO_COMPANYNAME 58 | * - PNG_USER_VERSIONINFO_LEGALTRADEMARKS 59 | */ 60 | 61 | #ifdef __STDC__ 62 | #ifdef SPECIALBUILD 63 | # pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\ 64 | are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.") 65 | #endif 66 | 67 | #ifdef PRIVATEBUILD 68 | # pragma message("PRIVATEBUILD is deprecated.\ 69 | Use PNG_USER_PRIVATEBUILD instead.") 70 | # define PNG_USER_PRIVATEBUILD PRIVATEBUILD 71 | #endif 72 | #endif /* __STDC__ */ 73 | 74 | #ifndef PNG_VERSION_INFO_ONLY 75 | 76 | /* End of material added to libpng-1.2.8 */ 77 | 78 | /* Added at libpng-1.2.19, removed at libpng-1.2.20 because it caused trouble 79 | Restored at libpng-1.2.21 */ 80 | #if !defined(PNG_NO_WARN_UNINITIALIZED_ROW) && \ 81 | !defined(PNG_WARN_UNINITIALIZED_ROW) 82 | # define PNG_WARN_UNINITIALIZED_ROW 1 83 | #endif 84 | /* End of material added at libpng-1.2.19/1.2.21 */ 85 | 86 | /* This is the size of the compression buffer, and thus the size of 87 | * an IDAT chunk. Make this whatever size you feel is best for your 88 | * machine. One of these will be allocated per png_struct. When this 89 | * is full, it writes the data to the disk, and does some other 90 | * calculations. Making this an extremely small size will slow 91 | * the library down, but you may want to experiment to determine 92 | * where it becomes significant, if you are concerned with memory 93 | * usage. Note that zlib allocates at least 32Kb also. For readers, 94 | * this describes the size of the buffer available to read the data in. 95 | * Unless this gets smaller than the size of a row (compressed), 96 | * it should not make much difference how big this is. 97 | */ 98 | 99 | #ifndef PNG_ZBUF_SIZE 100 | # define PNG_ZBUF_SIZE 8192 101 | #endif 102 | 103 | /* Enable if you want a write-only libpng */ 104 | 105 | #ifndef PNG_NO_READ_SUPPORTED 106 | # define PNG_READ_SUPPORTED 107 | #endif 108 | 109 | /* Enable if you want a read-only libpng */ 110 | 111 | #ifndef PNG_NO_WRITE_SUPPORTED 112 | # define PNG_WRITE_SUPPORTED 113 | #endif 114 | 115 | /* Enabled by default in 1.2.0. You can disable this if you don't need to 116 | support PNGs that are embedded in MNG datastreams */ 117 | #if !defined(PNG_1_0_X) && !defined(PNG_NO_MNG_FEATURES) 118 | # ifndef PNG_MNG_FEATURES_SUPPORTED 119 | # define PNG_MNG_FEATURES_SUPPORTED 120 | # endif 121 | #endif 122 | 123 | #ifndef PNG_NO_FLOATING_POINT_SUPPORTED 124 | # ifndef PNG_FLOATING_POINT_SUPPORTED 125 | # define PNG_FLOATING_POINT_SUPPORTED 126 | # endif 127 | #endif 128 | 129 | /* If you are running on a machine where you cannot allocate more 130 | * than 64K of memory at once, uncomment this. While libpng will not 131 | * normally need that much memory in a chunk (unless you load up a very 132 | * large file), zlib needs to know how big of a chunk it can use, and 133 | * libpng thus makes sure to check any memory allocation to verify it 134 | * will fit into memory. 135 | #define PNG_MAX_MALLOC_64K 136 | */ 137 | #if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K) 138 | # define PNG_MAX_MALLOC_64K 139 | #endif 140 | 141 | /* Special munging to support doing things the 'cygwin' way: 142 | * 'Normal' png-on-win32 defines/defaults: 143 | * PNG_BUILD_DLL -- building dll 144 | * PNG_USE_DLL -- building an application, linking to dll 145 | * (no define) -- building static library, or building an 146 | * application and linking to the static lib 147 | * 'Cygwin' defines/defaults: 148 | * PNG_BUILD_DLL -- (ignored) building the dll 149 | * (no define) -- (ignored) building an application, linking to the dll 150 | * PNG_STATIC -- (ignored) building the static lib, or building an 151 | * application that links to the static lib. 152 | * ALL_STATIC -- (ignored) building various static libs, or building an 153 | * application that links to the static libs. 154 | * Thus, 155 | * a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and 156 | * this bit of #ifdefs will define the 'correct' config variables based on 157 | * that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but 158 | * unnecessary. 159 | * 160 | * Also, the precedence order is: 161 | * ALL_STATIC (since we can't #undef something outside our namespace) 162 | * PNG_BUILD_DLL 163 | * PNG_STATIC 164 | * (nothing) == PNG_USE_DLL 165 | * 166 | * CYGWIN (2002-01-20): The preceding is now obsolete. With the advent 167 | * of auto-import in binutils, we no longer need to worry about 168 | * __declspec(dllexport) / __declspec(dllimport) and friends. Therefore, 169 | * we don't need to worry about PNG_STATIC or ALL_STATIC when it comes 170 | * to __declspec() stuff. However, we DO need to worry about 171 | * PNG_BUILD_DLL and PNG_STATIC because those change some defaults 172 | * such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed. 173 | */ 174 | #if defined(__CYGWIN__) 175 | # if defined(ALL_STATIC) 176 | # if defined(PNG_BUILD_DLL) 177 | # undef PNG_BUILD_DLL 178 | # endif 179 | # if defined(PNG_USE_DLL) 180 | # undef PNG_USE_DLL 181 | # endif 182 | # if defined(PNG_DLL) 183 | # undef PNG_DLL 184 | # endif 185 | # if !defined(PNG_STATIC) 186 | # define PNG_STATIC 187 | # endif 188 | # else 189 | # if defined (PNG_BUILD_DLL) 190 | # if defined(PNG_STATIC) 191 | # undef PNG_STATIC 192 | # endif 193 | # if defined(PNG_USE_DLL) 194 | # undef PNG_USE_DLL 195 | # endif 196 | # if !defined(PNG_DLL) 197 | # define PNG_DLL 198 | # endif 199 | # else 200 | # if defined(PNG_STATIC) 201 | # if defined(PNG_USE_DLL) 202 | # undef PNG_USE_DLL 203 | # endif 204 | # if defined(PNG_DLL) 205 | # undef PNG_DLL 206 | # endif 207 | # else 208 | # if !defined(PNG_USE_DLL) 209 | # define PNG_USE_DLL 210 | # endif 211 | # if !defined(PNG_DLL) 212 | # define PNG_DLL 213 | # endif 214 | # endif 215 | # endif 216 | # endif 217 | #endif 218 | 219 | /* This protects us against compilers that run on a windowing system 220 | * and thus don't have or would rather us not use the stdio types: 221 | * stdin, stdout, and stderr. The only one currently used is stderr 222 | * in png_error() and png_warning(). #defining PNG_NO_CONSOLE_IO will 223 | * prevent these from being compiled and used. #defining PNG_NO_STDIO 224 | * will also prevent these, plus will prevent the entire set of stdio 225 | * macros and functions (FILE *, printf, etc.) from being compiled and used, 226 | * unless (PNG_DEBUG > 0) has been #defined. 227 | * 228 | * #define PNG_NO_CONSOLE_IO 229 | * #define PNG_NO_STDIO 230 | */ 231 | 232 | #if defined(_WIN32_WCE) 233 | # include 234 | /* Console I/O functions are not supported on WindowsCE */ 235 | # define PNG_NO_CONSOLE_IO 236 | /* abort() may not be supported on some/all Windows CE platforms */ 237 | # define PNG_ABORT() exit(-1) 238 | # ifdef PNG_DEBUG 239 | # undef PNG_DEBUG 240 | # endif 241 | #endif 242 | 243 | #ifdef PNG_BUILD_DLL 244 | # ifndef PNG_CONSOLE_IO_SUPPORTED 245 | # ifndef PNG_NO_CONSOLE_IO 246 | # define PNG_NO_CONSOLE_IO 247 | # endif 248 | # endif 249 | #endif 250 | 251 | # ifdef PNG_NO_STDIO 252 | # ifndef PNG_NO_CONSOLE_IO 253 | # define PNG_NO_CONSOLE_IO 254 | # endif 255 | # ifdef PNG_DEBUG 256 | # if (PNG_DEBUG > 0) 257 | # include 258 | # endif 259 | # endif 260 | # else 261 | # if !defined(_WIN32_WCE) 262 | /* "stdio.h" functions are not supported on WindowsCE */ 263 | # include 264 | # endif 265 | # endif 266 | 267 | /* This macro protects us against machines that don't have function 268 | * prototypes (ie K&R style headers). If your compiler does not handle 269 | * function prototypes, define this macro and use the included ansi2knr. 270 | * I've always been able to use _NO_PROTO as the indicator, but you may 271 | * need to drag the empty declaration out in front of here, or change the 272 | * ifdef to suit your own needs. 273 | */ 274 | #ifndef PNGARG 275 | 276 | #ifdef OF /* zlib prototype munger */ 277 | # define PNGARG(arglist) OF(arglist) 278 | #else 279 | 280 | #ifdef _NO_PROTO 281 | # define PNGARG(arglist) () 282 | # ifndef PNG_TYPECAST_NULL 283 | # define PNG_TYPECAST_NULL 284 | # endif 285 | #else 286 | # define PNGARG(arglist) arglist 287 | #endif /* _NO_PROTO */ 288 | 289 | 290 | #endif /* OF */ 291 | 292 | #endif /* PNGARG */ 293 | 294 | /* Try to determine if we are compiling on a Mac. Note that testing for 295 | * just __MWERKS__ is not good enough, because the Codewarrior is now used 296 | * on non-Mac platforms. 297 | */ 298 | #ifndef MACOS 299 | # if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \ 300 | defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC) 301 | # define MACOS 302 | # endif 303 | #endif 304 | 305 | /* enough people need this for various reasons to include it here */ 306 | #if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE) 307 | # include 308 | #endif 309 | 310 | #if !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED) 311 | # define PNG_SETJMP_SUPPORTED 312 | #endif 313 | 314 | #ifdef PNG_SETJMP_SUPPORTED 315 | /* This is an attempt to force a single setjmp behaviour on Linux. If 316 | * the X config stuff didn't define _BSD_SOURCE we wouldn't need this. 317 | * 318 | * You can bypass this test if you know that your application uses exactly 319 | * the same setjmp.h that was included when libpng was built. Only define 320 | * PNG_SKIP_SETJMP_CHECK while building your application, prior to the 321 | * application's '#include "png.h"'. Don't define PNG_SKIP_SETJMP_CHECK 322 | * while building a separate libpng library for general use. 323 | */ 324 | 325 | # ifndef PNG_SKIP_SETJMP_CHECK 326 | # ifdef __linux__ 327 | # ifdef _BSD_SOURCE 328 | # define PNG_SAVE_BSD_SOURCE 329 | # undef _BSD_SOURCE 330 | # endif 331 | # ifdef _SETJMP_H 332 | /* If you encounter a compiler error here, see the explanation 333 | * near the end of INSTALL. 334 | */ 335 | __pngconf.h__ in libpng already includes setjmp.h; 336 | __dont__ include it again.; 337 | # endif 338 | # endif /* __linux__ */ 339 | # endif /* PNG_SKIP_SETJMP_CHECK */ 340 | 341 | /* include setjmp.h for error handling */ 342 | # include 343 | 344 | # ifdef __linux__ 345 | # ifdef PNG_SAVE_BSD_SOURCE 346 | # ifndef _BSD_SOURCE 347 | # define _BSD_SOURCE 348 | # endif 349 | # undef PNG_SAVE_BSD_SOURCE 350 | # endif 351 | # endif /* __linux__ */ 352 | #endif /* PNG_SETJMP_SUPPORTED */ 353 | 354 | #ifdef BSD 355 | # include 356 | #else 357 | # include 358 | #endif 359 | 360 | /* Other defines for things like memory and the like can go here. */ 361 | #ifdef PNG_INTERNAL 362 | 363 | #include 364 | 365 | /* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which 366 | * aren't usually used outside the library (as far as I know), so it is 367 | * debatable if they should be exported at all. In the future, when it is 368 | * possible to have run-time registry of chunk-handling functions, some of 369 | * these will be made available again. 370 | #define PNG_EXTERN extern 371 | */ 372 | #define PNG_EXTERN 373 | 374 | /* Other defines specific to compilers can go here. Try to keep 375 | * them inside an appropriate ifdef/endif pair for portability. 376 | */ 377 | 378 | #if defined(PNG_FLOATING_POINT_SUPPORTED) 379 | # if defined(MACOS) 380 | /* We need to check that hasn't already been included earlier 381 | * as it seems it doesn't agree with , yet we should really use 382 | * if possible. 383 | */ 384 | # if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__) 385 | # include 386 | # endif 387 | # else 388 | # include 389 | # endif 390 | # if defined(_AMIGA) && defined(__SASC) && defined(_M68881) 391 | /* Amiga SAS/C: We must include builtin FPU functions when compiling using 392 | * MATH=68881 393 | */ 394 | # include 395 | # endif 396 | #endif 397 | 398 | /* Codewarrior on NT has linking problems without this. */ 399 | #if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__) 400 | # define PNG_ALWAYS_EXTERN 401 | #endif 402 | 403 | /* This provides the non-ANSI (far) memory allocation routines. */ 404 | #if defined(__TURBOC__) && defined(__MSDOS__) 405 | # include 406 | # include 407 | #endif 408 | 409 | /* I have no idea why is this necessary... */ 410 | #if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \ 411 | defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__)) 412 | # include 413 | #endif 414 | 415 | /* This controls how fine the dithering gets. As this allocates 416 | * a largish chunk of memory (32K), those who are not as concerned 417 | * with dithering quality can decrease some or all of these. 418 | */ 419 | #ifndef PNG_DITHER_RED_BITS 420 | # define PNG_DITHER_RED_BITS 5 421 | #endif 422 | #ifndef PNG_DITHER_GREEN_BITS 423 | # define PNG_DITHER_GREEN_BITS 5 424 | #endif 425 | #ifndef PNG_DITHER_BLUE_BITS 426 | # define PNG_DITHER_BLUE_BITS 5 427 | #endif 428 | 429 | /* This controls how fine the gamma correction becomes when you 430 | * are only interested in 8 bits anyway. Increasing this value 431 | * results in more memory being used, and more pow() functions 432 | * being called to fill in the gamma tables. Don't set this value 433 | * less then 8, and even that may not work (I haven't tested it). 434 | */ 435 | 436 | #ifndef PNG_MAX_GAMMA_8 437 | # define PNG_MAX_GAMMA_8 11 438 | #endif 439 | 440 | /* This controls how much a difference in gamma we can tolerate before 441 | * we actually start doing gamma conversion. 442 | */ 443 | #ifndef PNG_GAMMA_THRESHOLD 444 | # define PNG_GAMMA_THRESHOLD 0.05 445 | #endif 446 | 447 | #endif /* PNG_INTERNAL */ 448 | 449 | /* The following uses const char * instead of char * for error 450 | * and warning message functions, so some compilers won't complain. 451 | * If you do not want to use const, define PNG_NO_CONST here. 452 | */ 453 | 454 | #ifndef PNG_NO_CONST 455 | # define PNG_CONST const 456 | #else 457 | # define PNG_CONST 458 | #endif 459 | 460 | /* The following defines give you the ability to remove code from the 461 | * library that you will not be using. I wish I could figure out how to 462 | * automate this, but I can't do that without making it seriously hard 463 | * on the users. So if you are not using an ability, change the #define 464 | * to and #undef, and that part of the library will not be compiled. If 465 | * your linker can't find a function, you may want to make sure the 466 | * ability is defined here. Some of these depend upon some others being 467 | * defined. I haven't figured out all the interactions here, so you may 468 | * have to experiment awhile to get everything to compile. If you are 469 | * creating or using a shared library, you probably shouldn't touch this, 470 | * as it will affect the size of the structures, and this will cause bad 471 | * things to happen if the library and/or application ever change. 472 | */ 473 | 474 | /* Any features you will not be using can be undef'ed here */ 475 | 476 | /* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user 477 | * to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS 478 | * on the compile line, then pick and choose which ones to define without 479 | * having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED 480 | * if you only want to have a png-compliant reader/writer but don't need 481 | * any of the extra transformations. This saves about 80 kbytes in a 482 | * typical installation of the library. (PNG_NO_* form added in version 483 | * 1.0.1c, for consistency) 484 | */ 485 | 486 | /* The size of the png_text structure changed in libpng-1.0.6 when 487 | * iTXt support was added. iTXt support was turned off by default through 488 | * libpng-1.2.x, to support old apps that malloc the png_text structure 489 | * instead of calling png_set_text() and letting libpng malloc it. It 490 | * was turned on by default in libpng-1.3.0. 491 | */ 492 | 493 | #if defined(PNG_1_0_X) || defined (PNG_1_2_X) 494 | # ifndef PNG_NO_iTXt_SUPPORTED 495 | # define PNG_NO_iTXt_SUPPORTED 496 | # endif 497 | # ifndef PNG_NO_READ_iTXt 498 | # define PNG_NO_READ_iTXt 499 | # endif 500 | # ifndef PNG_NO_WRITE_iTXt 501 | # define PNG_NO_WRITE_iTXt 502 | # endif 503 | #endif 504 | 505 | #if !defined(PNG_NO_iTXt_SUPPORTED) 506 | # if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt) 507 | # define PNG_READ_iTXt 508 | # endif 509 | # if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt) 510 | # define PNG_WRITE_iTXt 511 | # endif 512 | #endif 513 | 514 | /* The following support, added after version 1.0.0, can be turned off here en 515 | * masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility 516 | * with old applications that require the length of png_struct and png_info 517 | * to remain unchanged. 518 | */ 519 | 520 | #ifdef PNG_LEGACY_SUPPORTED 521 | # define PNG_NO_FREE_ME 522 | # define PNG_NO_READ_UNKNOWN_CHUNKS 523 | # define PNG_NO_WRITE_UNKNOWN_CHUNKS 524 | # define PNG_NO_READ_USER_CHUNKS 525 | # define PNG_NO_READ_iCCP 526 | # define PNG_NO_WRITE_iCCP 527 | # define PNG_NO_READ_iTXt 528 | # define PNG_NO_WRITE_iTXt 529 | # define PNG_NO_READ_sCAL 530 | # define PNG_NO_WRITE_sCAL 531 | # define PNG_NO_READ_sPLT 532 | # define PNG_NO_WRITE_sPLT 533 | # define PNG_NO_INFO_IMAGE 534 | # define PNG_NO_READ_RGB_TO_GRAY 535 | # define PNG_NO_READ_USER_TRANSFORM 536 | # define PNG_NO_WRITE_USER_TRANSFORM 537 | # define PNG_NO_USER_MEM 538 | # define PNG_NO_READ_EMPTY_PLTE 539 | # define PNG_NO_MNG_FEATURES 540 | # define PNG_NO_FIXED_POINT_SUPPORTED 541 | #endif 542 | 543 | /* Ignore attempt to turn off both floating and fixed point support */ 544 | #if !defined(PNG_FLOATING_POINT_SUPPORTED) || \ 545 | !defined(PNG_NO_FIXED_POINT_SUPPORTED) 546 | # define PNG_FIXED_POINT_SUPPORTED 547 | #endif 548 | 549 | #ifndef PNG_NO_FREE_ME 550 | # define PNG_FREE_ME_SUPPORTED 551 | #endif 552 | 553 | #if defined(PNG_READ_SUPPORTED) 554 | 555 | #if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \ 556 | !defined(PNG_NO_READ_TRANSFORMS) 557 | # define PNG_READ_TRANSFORMS_SUPPORTED 558 | #endif 559 | 560 | #ifdef PNG_READ_TRANSFORMS_SUPPORTED 561 | # ifndef PNG_NO_READ_EXPAND 562 | # define PNG_READ_EXPAND_SUPPORTED 563 | # endif 564 | # ifndef PNG_NO_READ_SHIFT 565 | # define PNG_READ_SHIFT_SUPPORTED 566 | # endif 567 | # ifndef PNG_NO_READ_PACK 568 | # define PNG_READ_PACK_SUPPORTED 569 | # endif 570 | # ifndef PNG_NO_READ_BGR 571 | # define PNG_READ_BGR_SUPPORTED 572 | # endif 573 | # ifndef PNG_NO_READ_SWAP 574 | # define PNG_READ_SWAP_SUPPORTED 575 | # endif 576 | # ifndef PNG_NO_READ_PACKSWAP 577 | # define PNG_READ_PACKSWAP_SUPPORTED 578 | # endif 579 | # ifndef PNG_NO_READ_INVERT 580 | # define PNG_READ_INVERT_SUPPORTED 581 | # endif 582 | # ifndef PNG_NO_READ_DITHER 583 | # define PNG_READ_DITHER_SUPPORTED 584 | # endif 585 | # ifndef PNG_NO_READ_BACKGROUND 586 | # define PNG_READ_BACKGROUND_SUPPORTED 587 | # endif 588 | # ifndef PNG_NO_READ_16_TO_8 589 | # define PNG_READ_16_TO_8_SUPPORTED 590 | # endif 591 | # ifndef PNG_NO_READ_FILLER 592 | # define PNG_READ_FILLER_SUPPORTED 593 | # endif 594 | # ifndef PNG_NO_READ_GAMMA 595 | # define PNG_READ_GAMMA_SUPPORTED 596 | # endif 597 | # ifndef PNG_NO_READ_GRAY_TO_RGB 598 | # define PNG_READ_GRAY_TO_RGB_SUPPORTED 599 | # endif 600 | # ifndef PNG_NO_READ_SWAP_ALPHA 601 | # define PNG_READ_SWAP_ALPHA_SUPPORTED 602 | # endif 603 | # ifndef PNG_NO_READ_INVERT_ALPHA 604 | # define PNG_READ_INVERT_ALPHA_SUPPORTED 605 | # endif 606 | # ifndef PNG_NO_READ_STRIP_ALPHA 607 | # define PNG_READ_STRIP_ALPHA_SUPPORTED 608 | # endif 609 | # ifndef PNG_NO_READ_USER_TRANSFORM 610 | # define PNG_READ_USER_TRANSFORM_SUPPORTED 611 | # endif 612 | # ifndef PNG_NO_READ_RGB_TO_GRAY 613 | # define PNG_READ_RGB_TO_GRAY_SUPPORTED 614 | # endif 615 | #endif /* PNG_READ_TRANSFORMS_SUPPORTED */ 616 | 617 | #if !defined(PNG_NO_PROGRESSIVE_READ) && \ 618 | !defined(PNG_PROGRESSIVE_READ_SUPPORTED) /* if you don't do progressive */ 619 | # define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */ 620 | #endif /* about interlacing capability! You'll */ 621 | /* still have interlacing unless you change the following line: */ 622 | 623 | #define PNG_READ_INTERLACING_SUPPORTED /* required in PNG-compliant decoders */ 624 | 625 | #ifndef PNG_NO_READ_COMPOSITE_NODIV 626 | # ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */ 627 | # define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */ 628 | # endif 629 | #endif 630 | 631 | #if defined(PNG_1_0_X) || defined (PNG_1_2_X) 632 | /* Deprecated, will be removed from version 2.0.0. 633 | Use PNG_MNG_FEATURES_SUPPORTED instead. */ 634 | #ifndef PNG_NO_READ_EMPTY_PLTE 635 | # define PNG_READ_EMPTY_PLTE_SUPPORTED 636 | #endif 637 | #endif 638 | 639 | #endif /* PNG_READ_SUPPORTED */ 640 | 641 | #if defined(PNG_WRITE_SUPPORTED) 642 | 643 | # if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \ 644 | !defined(PNG_NO_WRITE_TRANSFORMS) 645 | # define PNG_WRITE_TRANSFORMS_SUPPORTED 646 | #endif 647 | 648 | #ifdef PNG_WRITE_TRANSFORMS_SUPPORTED 649 | # ifndef PNG_NO_WRITE_SHIFT 650 | # define PNG_WRITE_SHIFT_SUPPORTED 651 | # endif 652 | # ifndef PNG_NO_WRITE_PACK 653 | # define PNG_WRITE_PACK_SUPPORTED 654 | # endif 655 | # ifndef PNG_NO_WRITE_BGR 656 | # define PNG_WRITE_BGR_SUPPORTED 657 | # endif 658 | # ifndef PNG_NO_WRITE_SWAP 659 | # define PNG_WRITE_SWAP_SUPPORTED 660 | # endif 661 | # ifndef PNG_NO_WRITE_PACKSWAP 662 | # define PNG_WRITE_PACKSWAP_SUPPORTED 663 | # endif 664 | # ifndef PNG_NO_WRITE_INVERT 665 | # define PNG_WRITE_INVERT_SUPPORTED 666 | # endif 667 | # ifndef PNG_NO_WRITE_FILLER 668 | # define PNG_WRITE_FILLER_SUPPORTED /* same as WRITE_STRIP_ALPHA */ 669 | # endif 670 | # ifndef PNG_NO_WRITE_SWAP_ALPHA 671 | # define PNG_WRITE_SWAP_ALPHA_SUPPORTED 672 | # endif 673 | # ifndef PNG_NO_WRITE_INVERT_ALPHA 674 | # define PNG_WRITE_INVERT_ALPHA_SUPPORTED 675 | # endif 676 | # ifndef PNG_NO_WRITE_USER_TRANSFORM 677 | # define PNG_WRITE_USER_TRANSFORM_SUPPORTED 678 | # endif 679 | #endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */ 680 | 681 | #if !defined(PNG_NO_WRITE_INTERLACING_SUPPORTED) && \ 682 | !defined(PNG_WRITE_INTERLACING_SUPPORTED) 683 | #define PNG_WRITE_INTERLACING_SUPPORTED /* not required for PNG-compliant 684 | encoders, but can cause trouble 685 | if left undefined */ 686 | #endif 687 | 688 | #if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \ 689 | !defined(PNG_WRITE_WEIGHTED_FILTER) && \ 690 | defined(PNG_FLOATING_POINT_SUPPORTED) 691 | # define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED 692 | #endif 693 | 694 | #ifndef PNG_NO_WRITE_FLUSH 695 | # define PNG_WRITE_FLUSH_SUPPORTED 696 | #endif 697 | 698 | #if defined(PNG_1_0_X) || defined (PNG_1_2_X) 699 | /* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */ 700 | #ifndef PNG_NO_WRITE_EMPTY_PLTE 701 | # define PNG_WRITE_EMPTY_PLTE_SUPPORTED 702 | #endif 703 | #endif 704 | 705 | #endif /* PNG_WRITE_SUPPORTED */ 706 | 707 | #ifndef PNG_1_0_X 708 | # ifndef PNG_NO_ERROR_NUMBERS 709 | # define PNG_ERROR_NUMBERS_SUPPORTED 710 | # endif 711 | #endif /* PNG_1_0_X */ 712 | 713 | #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ 714 | defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) 715 | # ifndef PNG_NO_USER_TRANSFORM_PTR 716 | # define PNG_USER_TRANSFORM_PTR_SUPPORTED 717 | # endif 718 | #endif 719 | 720 | #ifndef PNG_NO_STDIO 721 | # define PNG_TIME_RFC1123_SUPPORTED 722 | #endif 723 | 724 | /* This adds extra functions in pngget.c for accessing data from the 725 | * info pointer (added in version 0.99) 726 | * png_get_image_width() 727 | * png_get_image_height() 728 | * png_get_bit_depth() 729 | * png_get_color_type() 730 | * png_get_compression_type() 731 | * png_get_filter_type() 732 | * png_get_interlace_type() 733 | * png_get_pixel_aspect_ratio() 734 | * png_get_pixels_per_meter() 735 | * png_get_x_offset_pixels() 736 | * png_get_y_offset_pixels() 737 | * png_get_x_offset_microns() 738 | * png_get_y_offset_microns() 739 | */ 740 | #if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED) 741 | # define PNG_EASY_ACCESS_SUPPORTED 742 | #endif 743 | 744 | /* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0 745 | * and removed from version 1.2.20. The following will be removed 746 | * from libpng-1.4.0 747 | */ 748 | 749 | #if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_OPTIMIZED_CODE) 750 | # ifndef PNG_OPTIMIZED_CODE_SUPPORTED 751 | # define PNG_OPTIMIZED_CODE_SUPPORTED 752 | # endif 753 | #endif 754 | 755 | #if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE) && defined(__i386__) 756 | # ifndef PNG_ASSEMBLER_CODE_SUPPORTED 757 | # define PNG_ASSEMBLER_CODE_SUPPORTED 758 | # endif 759 | 760 | # if defined(__GNUC__) && defined(__x86_64__) && (__GNUC__ < 4) 761 | /* work around 64-bit gcc compiler bugs in gcc-3.x */ 762 | # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) 763 | # define PNG_NO_MMX_CODE 764 | # endif 765 | # endif 766 | 767 | # if defined(__APPLE__) 768 | # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) 769 | # define PNG_NO_MMX_CODE 770 | # endif 771 | # endif 772 | 773 | # if (defined(__MWERKS__) && ((__MWERKS__ < 0x0900) || macintosh)) 774 | # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) 775 | # define PNG_NO_MMX_CODE 776 | # endif 777 | # endif 778 | 779 | # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) 780 | # define PNG_MMX_CODE_SUPPORTED 781 | # endif 782 | 783 | #endif 784 | /* end of obsolete code to be removed from libpng-1.4.0 */ 785 | 786 | #if !defined(PNG_1_0_X) 787 | #if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED) 788 | # define PNG_USER_MEM_SUPPORTED 789 | #endif 790 | #endif /* PNG_1_0_X */ 791 | 792 | /* Added at libpng-1.2.6 */ 793 | #if !defined(PNG_1_0_X) 794 | #ifndef PNG_SET_USER_LIMITS_SUPPORTED 795 | #if !defined(PNG_NO_SET_USER_LIMITS) && !defined(PNG_SET_USER_LIMITS_SUPPORTED) 796 | # define PNG_SET_USER_LIMITS_SUPPORTED 797 | #endif 798 | #endif 799 | #endif /* PNG_1_0_X */ 800 | 801 | /* Added at libpng-1.0.16 and 1.2.6. To accept all valid PNGS no matter 802 | * how large, set these limits to 0x7fffffffL 803 | */ 804 | #ifndef PNG_USER_WIDTH_MAX 805 | # define PNG_USER_WIDTH_MAX 1000000L 806 | #endif 807 | #ifndef PNG_USER_HEIGHT_MAX 808 | # define PNG_USER_HEIGHT_MAX 1000000L 809 | #endif 810 | 811 | /* Added at libpng-1.2.34 and 1.4.0 */ 812 | #ifndef PNG_STRING_NEWLINE 813 | #define PNG_STRING_NEWLINE "\n" 814 | #endif 815 | 816 | /* These are currently experimental features, define them if you want */ 817 | 818 | /* very little testing */ 819 | /* 820 | #ifdef PNG_READ_SUPPORTED 821 | # ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED 822 | # define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED 823 | # endif 824 | #endif 825 | */ 826 | 827 | /* This is only for PowerPC big-endian and 680x0 systems */ 828 | /* some testing */ 829 | /* 830 | #ifndef PNG_READ_BIG_ENDIAN_SUPPORTED 831 | # define PNG_READ_BIG_ENDIAN_SUPPORTED 832 | #endif 833 | */ 834 | 835 | /* Buggy compilers (e.g., gcc 2.7.2.2) need this */ 836 | /* 837 | #define PNG_NO_POINTER_INDEXING 838 | */ 839 | 840 | /* These functions are turned off by default, as they will be phased out. */ 841 | /* 842 | #define PNG_USELESS_TESTS_SUPPORTED 843 | #define PNG_CORRECT_PALETTE_SUPPORTED 844 | */ 845 | 846 | /* Any chunks you are not interested in, you can undef here. The 847 | * ones that allocate memory may be expecially important (hIST, 848 | * tEXt, zTXt, tRNS, pCAL). Others will just save time and make png_info 849 | * a bit smaller. 850 | */ 851 | 852 | #if defined(PNG_READ_SUPPORTED) && \ 853 | !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ 854 | !defined(PNG_NO_READ_ANCILLARY_CHUNKS) 855 | # define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED 856 | #endif 857 | 858 | #if defined(PNG_WRITE_SUPPORTED) && \ 859 | !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ 860 | !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS) 861 | # define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED 862 | #endif 863 | 864 | #ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED 865 | 866 | #ifdef PNG_NO_READ_TEXT 867 | # define PNG_NO_READ_iTXt 868 | # define PNG_NO_READ_tEXt 869 | # define PNG_NO_READ_zTXt 870 | #endif 871 | #ifndef PNG_NO_READ_bKGD 872 | # define PNG_READ_bKGD_SUPPORTED 873 | # define PNG_bKGD_SUPPORTED 874 | #endif 875 | #ifndef PNG_NO_READ_cHRM 876 | # define PNG_READ_cHRM_SUPPORTED 877 | # define PNG_cHRM_SUPPORTED 878 | #endif 879 | #ifndef PNG_NO_READ_gAMA 880 | # define PNG_READ_gAMA_SUPPORTED 881 | # define PNG_gAMA_SUPPORTED 882 | #endif 883 | #ifndef PNG_NO_READ_hIST 884 | # define PNG_READ_hIST_SUPPORTED 885 | # define PNG_hIST_SUPPORTED 886 | #endif 887 | #ifndef PNG_NO_READ_iCCP 888 | # define PNG_READ_iCCP_SUPPORTED 889 | # define PNG_iCCP_SUPPORTED 890 | #endif 891 | #ifndef PNG_NO_READ_iTXt 892 | # ifndef PNG_READ_iTXt_SUPPORTED 893 | # define PNG_READ_iTXt_SUPPORTED 894 | # endif 895 | # ifndef PNG_iTXt_SUPPORTED 896 | # define PNG_iTXt_SUPPORTED 897 | # endif 898 | #endif 899 | #ifndef PNG_NO_READ_oFFs 900 | # define PNG_READ_oFFs_SUPPORTED 901 | # define PNG_oFFs_SUPPORTED 902 | #endif 903 | #ifndef PNG_NO_READ_pCAL 904 | # define PNG_READ_pCAL_SUPPORTED 905 | # define PNG_pCAL_SUPPORTED 906 | #endif 907 | #ifndef PNG_NO_READ_sCAL 908 | # define PNG_READ_sCAL_SUPPORTED 909 | # define PNG_sCAL_SUPPORTED 910 | #endif 911 | #ifndef PNG_NO_READ_pHYs 912 | # define PNG_READ_pHYs_SUPPORTED 913 | # define PNG_pHYs_SUPPORTED 914 | #endif 915 | #ifndef PNG_NO_READ_sBIT 916 | # define PNG_READ_sBIT_SUPPORTED 917 | # define PNG_sBIT_SUPPORTED 918 | #endif 919 | #ifndef PNG_NO_READ_sPLT 920 | # define PNG_READ_sPLT_SUPPORTED 921 | # define PNG_sPLT_SUPPORTED 922 | #endif 923 | #ifndef PNG_NO_READ_sRGB 924 | # define PNG_READ_sRGB_SUPPORTED 925 | # define PNG_sRGB_SUPPORTED 926 | #endif 927 | #ifndef PNG_NO_READ_tEXt 928 | # define PNG_READ_tEXt_SUPPORTED 929 | # define PNG_tEXt_SUPPORTED 930 | #endif 931 | #ifndef PNG_NO_READ_tIME 932 | # define PNG_READ_tIME_SUPPORTED 933 | # define PNG_tIME_SUPPORTED 934 | #endif 935 | #ifndef PNG_NO_READ_tRNS 936 | # define PNG_READ_tRNS_SUPPORTED 937 | # define PNG_tRNS_SUPPORTED 938 | #endif 939 | #ifndef PNG_NO_READ_zTXt 940 | # define PNG_READ_zTXt_SUPPORTED 941 | # define PNG_zTXt_SUPPORTED 942 | #endif 943 | #ifndef PNG_NO_READ_UNKNOWN_CHUNKS 944 | # define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED 945 | # ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED 946 | # define PNG_UNKNOWN_CHUNKS_SUPPORTED 947 | # endif 948 | # ifndef PNG_NO_HANDLE_AS_UNKNOWN 949 | # define PNG_HANDLE_AS_UNKNOWN_SUPPORTED 950 | # endif 951 | #endif 952 | #if !defined(PNG_NO_READ_USER_CHUNKS) && \ 953 | defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) 954 | # define PNG_READ_USER_CHUNKS_SUPPORTED 955 | # define PNG_USER_CHUNKS_SUPPORTED 956 | # ifdef PNG_NO_READ_UNKNOWN_CHUNKS 957 | # undef PNG_NO_READ_UNKNOWN_CHUNKS 958 | # endif 959 | # ifdef PNG_NO_HANDLE_AS_UNKNOWN 960 | # undef PNG_NO_HANDLE_AS_UNKNOWN 961 | # endif 962 | #endif 963 | #ifndef PNG_NO_READ_OPT_PLTE 964 | # define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */ 965 | #endif /* optional PLTE chunk in RGB and RGBA images */ 966 | #if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \ 967 | defined(PNG_READ_zTXt_SUPPORTED) 968 | # define PNG_READ_TEXT_SUPPORTED 969 | # define PNG_TEXT_SUPPORTED 970 | #endif 971 | 972 | #endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */ 973 | 974 | #ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED 975 | 976 | #ifdef PNG_NO_WRITE_TEXT 977 | # define PNG_NO_WRITE_iTXt 978 | # define PNG_NO_WRITE_tEXt 979 | # define PNG_NO_WRITE_zTXt 980 | #endif 981 | #ifndef PNG_NO_WRITE_bKGD 982 | # define PNG_WRITE_bKGD_SUPPORTED 983 | # ifndef PNG_bKGD_SUPPORTED 984 | # define PNG_bKGD_SUPPORTED 985 | # endif 986 | #endif 987 | #ifndef PNG_NO_WRITE_cHRM 988 | # define PNG_WRITE_cHRM_SUPPORTED 989 | # ifndef PNG_cHRM_SUPPORTED 990 | # define PNG_cHRM_SUPPORTED 991 | # endif 992 | #endif 993 | #ifndef PNG_NO_WRITE_gAMA 994 | # define PNG_WRITE_gAMA_SUPPORTED 995 | # ifndef PNG_gAMA_SUPPORTED 996 | # define PNG_gAMA_SUPPORTED 997 | # endif 998 | #endif 999 | #ifndef PNG_NO_WRITE_hIST 1000 | # define PNG_WRITE_hIST_SUPPORTED 1001 | # ifndef PNG_hIST_SUPPORTED 1002 | # define PNG_hIST_SUPPORTED 1003 | # endif 1004 | #endif 1005 | #ifndef PNG_NO_WRITE_iCCP 1006 | # define PNG_WRITE_iCCP_SUPPORTED 1007 | # ifndef PNG_iCCP_SUPPORTED 1008 | # define PNG_iCCP_SUPPORTED 1009 | # endif 1010 | #endif 1011 | #ifndef PNG_NO_WRITE_iTXt 1012 | # ifndef PNG_WRITE_iTXt_SUPPORTED 1013 | # define PNG_WRITE_iTXt_SUPPORTED 1014 | # endif 1015 | # ifndef PNG_iTXt_SUPPORTED 1016 | # define PNG_iTXt_SUPPORTED 1017 | # endif 1018 | #endif 1019 | #ifndef PNG_NO_WRITE_oFFs 1020 | # define PNG_WRITE_oFFs_SUPPORTED 1021 | # ifndef PNG_oFFs_SUPPORTED 1022 | # define PNG_oFFs_SUPPORTED 1023 | # endif 1024 | #endif 1025 | #ifndef PNG_NO_WRITE_pCAL 1026 | # define PNG_WRITE_pCAL_SUPPORTED 1027 | # ifndef PNG_pCAL_SUPPORTED 1028 | # define PNG_pCAL_SUPPORTED 1029 | # endif 1030 | #endif 1031 | #ifndef PNG_NO_WRITE_sCAL 1032 | # define PNG_WRITE_sCAL_SUPPORTED 1033 | # ifndef PNG_sCAL_SUPPORTED 1034 | # define PNG_sCAL_SUPPORTED 1035 | # endif 1036 | #endif 1037 | #ifndef PNG_NO_WRITE_pHYs 1038 | # define PNG_WRITE_pHYs_SUPPORTED 1039 | # ifndef PNG_pHYs_SUPPORTED 1040 | # define PNG_pHYs_SUPPORTED 1041 | # endif 1042 | #endif 1043 | #ifndef PNG_NO_WRITE_sBIT 1044 | # define PNG_WRITE_sBIT_SUPPORTED 1045 | # ifndef PNG_sBIT_SUPPORTED 1046 | # define PNG_sBIT_SUPPORTED 1047 | # endif 1048 | #endif 1049 | #ifndef PNG_NO_WRITE_sPLT 1050 | # define PNG_WRITE_sPLT_SUPPORTED 1051 | # ifndef PNG_sPLT_SUPPORTED 1052 | # define PNG_sPLT_SUPPORTED 1053 | # endif 1054 | #endif 1055 | #ifndef PNG_NO_WRITE_sRGB 1056 | # define PNG_WRITE_sRGB_SUPPORTED 1057 | # ifndef PNG_sRGB_SUPPORTED 1058 | # define PNG_sRGB_SUPPORTED 1059 | # endif 1060 | #endif 1061 | #ifndef PNG_NO_WRITE_tEXt 1062 | # define PNG_WRITE_tEXt_SUPPORTED 1063 | # ifndef PNG_tEXt_SUPPORTED 1064 | # define PNG_tEXt_SUPPORTED 1065 | # endif 1066 | #endif 1067 | #ifndef PNG_NO_WRITE_tIME 1068 | # define PNG_WRITE_tIME_SUPPORTED 1069 | # ifndef PNG_tIME_SUPPORTED 1070 | # define PNG_tIME_SUPPORTED 1071 | # endif 1072 | #endif 1073 | #ifndef PNG_NO_WRITE_tRNS 1074 | # define PNG_WRITE_tRNS_SUPPORTED 1075 | # ifndef PNG_tRNS_SUPPORTED 1076 | # define PNG_tRNS_SUPPORTED 1077 | # endif 1078 | #endif 1079 | #ifndef PNG_NO_WRITE_zTXt 1080 | # define PNG_WRITE_zTXt_SUPPORTED 1081 | # ifndef PNG_zTXt_SUPPORTED 1082 | # define PNG_zTXt_SUPPORTED 1083 | # endif 1084 | #endif 1085 | #ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS 1086 | # define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED 1087 | # ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED 1088 | # define PNG_UNKNOWN_CHUNKS_SUPPORTED 1089 | # endif 1090 | # ifndef PNG_NO_HANDLE_AS_UNKNOWN 1091 | # ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED 1092 | # define PNG_HANDLE_AS_UNKNOWN_SUPPORTED 1093 | # endif 1094 | # endif 1095 | #endif 1096 | #if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \ 1097 | defined(PNG_WRITE_zTXt_SUPPORTED) 1098 | # define PNG_WRITE_TEXT_SUPPORTED 1099 | # ifndef PNG_TEXT_SUPPORTED 1100 | # define PNG_TEXT_SUPPORTED 1101 | # endif 1102 | #endif 1103 | 1104 | #endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */ 1105 | 1106 | /* Turn this off to disable png_read_png() and 1107 | * png_write_png() and leave the row_pointers member 1108 | * out of the info structure. 1109 | */ 1110 | #ifndef PNG_NO_INFO_IMAGE 1111 | # define PNG_INFO_IMAGE_SUPPORTED 1112 | #endif 1113 | 1114 | /* need the time information for reading tIME chunks */ 1115 | #if defined(PNG_tIME_SUPPORTED) 1116 | # if !defined(_WIN32_WCE) 1117 | /* "time.h" functions are not supported on WindowsCE */ 1118 | # include 1119 | # endif 1120 | #endif 1121 | 1122 | /* Some typedefs to get us started. These should be safe on most of the 1123 | * common platforms. The typedefs should be at least as large as the 1124 | * numbers suggest (a png_uint_32 must be at least 32 bits long), but they 1125 | * don't have to be exactly that size. Some compilers dislike passing 1126 | * unsigned shorts as function parameters, so you may be better off using 1127 | * unsigned int for png_uint_16. Likewise, for 64-bit systems, you may 1128 | * want to have unsigned int for png_uint_32 instead of unsigned long. 1129 | */ 1130 | 1131 | typedef unsigned long png_uint_32; 1132 | typedef long png_int_32; 1133 | typedef unsigned short png_uint_16; 1134 | typedef short png_int_16; 1135 | typedef unsigned char png_byte; 1136 | 1137 | /* This is usually size_t. It is typedef'ed just in case you need it to 1138 | change (I'm not sure if you will or not, so I thought I'd be safe) */ 1139 | #ifdef PNG_SIZE_T 1140 | typedef PNG_SIZE_T png_size_t; 1141 | # define png_sizeof(x) png_convert_size(sizeof(x)) 1142 | #else 1143 | typedef size_t png_size_t; 1144 | # define png_sizeof(x) sizeof(x) 1145 | #endif 1146 | 1147 | /* The following is needed for medium model support. It cannot be in the 1148 | * PNG_INTERNAL section. Needs modification for other compilers besides 1149 | * MSC. Model independent support declares all arrays and pointers to be 1150 | * large using the far keyword. The zlib version used must also support 1151 | * model independent data. As of version zlib 1.0.4, the necessary changes 1152 | * have been made in zlib. The USE_FAR_KEYWORD define triggers other 1153 | * changes that are needed. (Tim Wegner) 1154 | */ 1155 | 1156 | /* Separate compiler dependencies (problem here is that zlib.h always 1157 | defines FAR. (SJT) */ 1158 | #ifdef __BORLANDC__ 1159 | # if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__) 1160 | # define LDATA 1 1161 | # else 1162 | # define LDATA 0 1163 | # endif 1164 | /* GRR: why is Cygwin in here? Cygwin is not Borland C... */ 1165 | # if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__) 1166 | # define PNG_MAX_MALLOC_64K 1167 | # if (LDATA != 1) 1168 | # ifndef FAR 1169 | # define FAR __far 1170 | # endif 1171 | # define USE_FAR_KEYWORD 1172 | # endif /* LDATA != 1 */ 1173 | /* Possibly useful for moving data out of default segment. 1174 | * Uncomment it if you want. Could also define FARDATA as 1175 | * const if your compiler supports it. (SJT) 1176 | # define FARDATA FAR 1177 | */ 1178 | # endif /* __WIN32__, __FLAT__, __CYGWIN__ */ 1179 | #endif /* __BORLANDC__ */ 1180 | 1181 | 1182 | /* Suggest testing for specific compiler first before testing for 1183 | * FAR. The Watcom compiler defines both __MEDIUM__ and M_I86MM, 1184 | * making reliance oncertain keywords suspect. (SJT) 1185 | */ 1186 | 1187 | /* MSC Medium model */ 1188 | #if defined(FAR) 1189 | # if defined(M_I86MM) 1190 | # define USE_FAR_KEYWORD 1191 | # define FARDATA FAR 1192 | # include 1193 | # endif 1194 | #endif 1195 | 1196 | /* SJT: default case */ 1197 | #ifndef FAR 1198 | # define FAR 1199 | #endif 1200 | 1201 | /* At this point FAR is always defined */ 1202 | #ifndef FARDATA 1203 | # define FARDATA 1204 | #endif 1205 | 1206 | /* Typedef for floating-point numbers that are converted 1207 | to fixed-point with a multiple of 100,000, e.g., int_gamma */ 1208 | typedef png_int_32 png_fixed_point; 1209 | 1210 | /* Add typedefs for pointers */ 1211 | typedef void FAR * png_voidp; 1212 | typedef png_byte FAR * png_bytep; 1213 | typedef png_uint_32 FAR * png_uint_32p; 1214 | typedef png_int_32 FAR * png_int_32p; 1215 | typedef png_uint_16 FAR * png_uint_16p; 1216 | typedef png_int_16 FAR * png_int_16p; 1217 | typedef PNG_CONST char FAR * png_const_charp; 1218 | typedef char FAR * png_charp; 1219 | typedef png_fixed_point FAR * png_fixed_point_p; 1220 | 1221 | #ifndef PNG_NO_STDIO 1222 | #if defined(_WIN32_WCE) 1223 | typedef HANDLE png_FILE_p; 1224 | #else 1225 | typedef FILE * png_FILE_p; 1226 | #endif 1227 | #endif 1228 | 1229 | #ifdef PNG_FLOATING_POINT_SUPPORTED 1230 | typedef double FAR * png_doublep; 1231 | #endif 1232 | 1233 | /* Pointers to pointers; i.e. arrays */ 1234 | typedef png_byte FAR * FAR * png_bytepp; 1235 | typedef png_uint_32 FAR * FAR * png_uint_32pp; 1236 | typedef png_int_32 FAR * FAR * png_int_32pp; 1237 | typedef png_uint_16 FAR * FAR * png_uint_16pp; 1238 | typedef png_int_16 FAR * FAR * png_int_16pp; 1239 | typedef PNG_CONST char FAR * FAR * png_const_charpp; 1240 | typedef char FAR * FAR * png_charpp; 1241 | typedef png_fixed_point FAR * FAR * png_fixed_point_pp; 1242 | #ifdef PNG_FLOATING_POINT_SUPPORTED 1243 | typedef double FAR * FAR * png_doublepp; 1244 | #endif 1245 | 1246 | /* Pointers to pointers to pointers; i.e., pointer to array */ 1247 | typedef char FAR * FAR * FAR * png_charppp; 1248 | 1249 | #if defined(PNG_1_0_X) || defined(PNG_1_2_X) 1250 | /* SPC - Is this stuff deprecated? */ 1251 | /* It'll be removed as of libpng-1.3.0 - GR-P */ 1252 | /* libpng typedefs for types in zlib. If zlib changes 1253 | * or another compression library is used, then change these. 1254 | * Eliminates need to change all the source files. 1255 | */ 1256 | typedef charf * png_zcharp; 1257 | typedef charf * FAR * png_zcharpp; 1258 | typedef z_stream FAR * png_zstreamp; 1259 | #endif /* (PNG_1_0_X) || defined(PNG_1_2_X) */ 1260 | 1261 | /* 1262 | * Define PNG_BUILD_DLL if the module being built is a Windows 1263 | * LIBPNG DLL. 1264 | * 1265 | * Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL. 1266 | * It is equivalent to Microsoft predefined macro _DLL that is 1267 | * automatically defined when you compile using the share 1268 | * version of the CRT (C Run-Time library) 1269 | * 1270 | * The cygwin mods make this behavior a little different: 1271 | * Define PNG_BUILD_DLL if you are building a dll for use with cygwin 1272 | * Define PNG_STATIC if you are building a static library for use with cygwin, 1273 | * -or- if you are building an application that you want to link to the 1274 | * static library. 1275 | * PNG_USE_DLL is defined by default (no user action needed) unless one of 1276 | * the other flags is defined. 1277 | */ 1278 | 1279 | #if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL)) 1280 | # define PNG_DLL 1281 | #endif 1282 | /* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib. 1283 | * When building a static lib, default to no GLOBAL ARRAYS, but allow 1284 | * command-line override 1285 | */ 1286 | #if defined(__CYGWIN__) 1287 | # if !defined(PNG_STATIC) 1288 | # if defined(PNG_USE_GLOBAL_ARRAYS) 1289 | # undef PNG_USE_GLOBAL_ARRAYS 1290 | # endif 1291 | # if !defined(PNG_USE_LOCAL_ARRAYS) 1292 | # define PNG_USE_LOCAL_ARRAYS 1293 | # endif 1294 | # else 1295 | # if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS) 1296 | # if defined(PNG_USE_GLOBAL_ARRAYS) 1297 | # undef PNG_USE_GLOBAL_ARRAYS 1298 | # endif 1299 | # endif 1300 | # endif 1301 | # if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS) 1302 | # define PNG_USE_LOCAL_ARRAYS 1303 | # endif 1304 | #endif 1305 | 1306 | /* Do not use global arrays (helps with building DLL's) 1307 | * They are no longer used in libpng itself, since version 1.0.5c, 1308 | * but might be required for some pre-1.0.5c applications. 1309 | */ 1310 | #if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS) 1311 | # if defined(PNG_NO_GLOBAL_ARRAYS) || \ 1312 | (defined(__GNUC__) && defined(PNG_DLL)) || defined(_MSC_VER) 1313 | # define PNG_USE_LOCAL_ARRAYS 1314 | # else 1315 | # define PNG_USE_GLOBAL_ARRAYS 1316 | # endif 1317 | #endif 1318 | 1319 | #if defined(__CYGWIN__) 1320 | # undef PNGAPI 1321 | # define PNGAPI __cdecl 1322 | # undef PNG_IMPEXP 1323 | # define PNG_IMPEXP 1324 | #endif 1325 | 1326 | /* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall", 1327 | * you may get warnings regarding the linkage of png_zalloc and png_zfree. 1328 | * Don't ignore those warnings; you must also reset the default calling 1329 | * convention in your compiler to match your PNGAPI, and you must build 1330 | * zlib and your applications the same way you build libpng. 1331 | */ 1332 | 1333 | #if defined(__MINGW32__) && !defined(PNG_MODULEDEF) 1334 | # ifndef PNG_NO_MODULEDEF 1335 | # define PNG_NO_MODULEDEF 1336 | # endif 1337 | #endif 1338 | 1339 | #if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF) 1340 | # define PNG_IMPEXP 1341 | #endif 1342 | 1343 | #if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \ 1344 | (( defined(_Windows) || defined(_WINDOWS) || \ 1345 | defined(WIN32) || defined(_WIN32) || defined(__WIN32__) )) 1346 | 1347 | # ifndef PNGAPI 1348 | # if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800)) 1349 | # define PNGAPI __cdecl 1350 | # else 1351 | # define PNGAPI _cdecl 1352 | # endif 1353 | # endif 1354 | 1355 | # if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \ 1356 | 0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */) 1357 | # define PNG_IMPEXP 1358 | # endif 1359 | 1360 | # if !defined(PNG_IMPEXP) 1361 | 1362 | # define PNG_EXPORT_TYPE1(type,symbol) PNG_IMPEXP type PNGAPI symbol 1363 | # define PNG_EXPORT_TYPE2(type,symbol) type PNG_IMPEXP PNGAPI symbol 1364 | 1365 | /* Borland/Microsoft */ 1366 | # if defined(_MSC_VER) || defined(__BORLANDC__) 1367 | # if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500) 1368 | # define PNG_EXPORT PNG_EXPORT_TYPE1 1369 | # else 1370 | # define PNG_EXPORT PNG_EXPORT_TYPE2 1371 | # if defined(PNG_BUILD_DLL) 1372 | # define PNG_IMPEXP __export 1373 | # else 1374 | # define PNG_IMPEXP /*__import */ /* doesn't exist AFAIK in 1375 | VC++ */ 1376 | # endif /* Exists in Borland C++ for 1377 | C++ classes (== huge) */ 1378 | # endif 1379 | # endif 1380 | 1381 | # if !defined(PNG_IMPEXP) 1382 | # if defined(PNG_BUILD_DLL) 1383 | # define PNG_IMPEXP __declspec(dllexport) 1384 | # else 1385 | # define PNG_IMPEXP __declspec(dllimport) 1386 | # endif 1387 | # endif 1388 | # endif /* PNG_IMPEXP */ 1389 | #else /* !(DLL || non-cygwin WINDOWS) */ 1390 | # if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__) 1391 | # ifndef PNGAPI 1392 | # define PNGAPI _System 1393 | # endif 1394 | # else 1395 | # if 0 /* ... other platforms, with other meanings */ 1396 | # endif 1397 | # endif 1398 | #endif 1399 | 1400 | #ifndef PNGAPI 1401 | # define PNGAPI 1402 | #endif 1403 | #ifndef PNG_IMPEXP 1404 | # define PNG_IMPEXP 1405 | #endif 1406 | 1407 | #ifdef PNG_BUILDSYMS 1408 | # ifndef PNG_EXPORT 1409 | # define PNG_EXPORT(type,symbol) PNG_FUNCTION_EXPORT symbol END 1410 | # endif 1411 | # ifdef PNG_USE_GLOBAL_ARRAYS 1412 | # ifndef PNG_EXPORT_VAR 1413 | # define PNG_EXPORT_VAR(type) PNG_DATA_EXPORT 1414 | # endif 1415 | # endif 1416 | #endif 1417 | 1418 | #ifndef PNG_EXPORT 1419 | # define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol 1420 | #endif 1421 | 1422 | #ifdef PNG_USE_GLOBAL_ARRAYS 1423 | # ifndef PNG_EXPORT_VAR 1424 | # define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type 1425 | # endif 1426 | #endif 1427 | 1428 | /* User may want to use these so they are not in PNG_INTERNAL. Any library 1429 | * functions that are passed far data must be model independent. 1430 | */ 1431 | 1432 | #ifndef PNG_ABORT 1433 | # define PNG_ABORT() abort() 1434 | #endif 1435 | 1436 | #ifdef PNG_SETJMP_SUPPORTED 1437 | # define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf) 1438 | #else 1439 | # define png_jmpbuf(png_ptr) \ 1440 | (LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED) 1441 | #endif 1442 | 1443 | #if defined(USE_FAR_KEYWORD) /* memory model independent fns */ 1444 | /* use this to make far-to-near assignments */ 1445 | # define CHECK 1 1446 | # define NOCHECK 0 1447 | # define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK)) 1448 | # define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK)) 1449 | # define png_snprintf _fsnprintf /* Added to v 1.2.19 */ 1450 | # define png_strlen _fstrlen 1451 | # define png_memcmp _fmemcmp /* SJT: added */ 1452 | # define png_memcpy _fmemcpy 1453 | # define png_memset _fmemset 1454 | #else /* use the usual functions */ 1455 | # define CVT_PTR(ptr) (ptr) 1456 | # define CVT_PTR_NOCHECK(ptr) (ptr) 1457 | # ifndef PNG_NO_SNPRINTF 1458 | # ifdef _MSC_VER 1459 | # define png_snprintf _snprintf /* Added to v 1.2.19 */ 1460 | # define png_snprintf2 _snprintf 1461 | # define png_snprintf6 _snprintf 1462 | # else 1463 | # define png_snprintf snprintf /* Added to v 1.2.19 */ 1464 | # define png_snprintf2 snprintf 1465 | # define png_snprintf6 snprintf 1466 | # endif 1467 | # else 1468 | /* You don't have or don't want to use snprintf(). Caution: Using 1469 | * sprintf instead of snprintf exposes your application to accidental 1470 | * or malevolent buffer overflows. If you don't have snprintf() 1471 | * as a general rule you should provide one (you can get one from 1472 | * Portable OpenSSH). */ 1473 | # define png_snprintf(s1,n,fmt,x1) sprintf(s1,fmt,x1) 1474 | # define png_snprintf2(s1,n,fmt,x1,x2) sprintf(s1,fmt,x1,x2) 1475 | # define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \ 1476 | sprintf(s1,fmt,x1,x2,x3,x4,x5,x6) 1477 | # endif 1478 | # define png_strlen strlen 1479 | # define png_memcmp memcmp /* SJT: added */ 1480 | # define png_memcpy memcpy 1481 | # define png_memset memset 1482 | #endif 1483 | /* End of memory model independent support */ 1484 | 1485 | /* Just a little check that someone hasn't tried to define something 1486 | * contradictory. 1487 | */ 1488 | #if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K) 1489 | # undef PNG_ZBUF_SIZE 1490 | # define PNG_ZBUF_SIZE 65536L 1491 | #endif 1492 | 1493 | /* Added at libpng-1.2.8 */ 1494 | #endif /* PNG_VERSION_INFO_ONLY */ 1495 | 1496 | #endif /* PNGCONF_H */ 1497 | --------------------------------------------------------------------------------