├── .dockerignore
├── CREDITS
├── opengl.h
├── opengl-camera-demo.gif
├── examples
    ├── textures
    │   ├── sample.png
    │   ├── sample2.png
    │   ├── awesomeface.png
    │   └── container.jpg
    ├── shaders
    │   ├── lamp.frag
    │   ├── geometry-shader.fs
    │   ├── lamp.vs
    │   ├── geometry-shader.vs
    │   ├── camera.vert
    │   ├── camera.frag
    │   ├── transformations.frag
    │   ├── transformations.vert
    │   ├── basic_lighting.vs
    │   ├── geometry-shader.gs
    │   └── basic_lighting.frag
    ├── composer.json
    ├── bootstrap.php
    ├── fixed-pipeline.php
    ├── models
    │   ├── cube.obj
    │   ├── sample.obj
    │   ├── gourd.obj
    │   └── suzanne.obj
    ├── composer.lock
    ├── geometry-shader.php
    ├── rectangle.php
    ├── basic-shader.php
    ├── shader-effect.php
    ├── rotate.php
    ├── animation.php
    ├── obj-model.php
    ├── lit-model.php
    ├── lit-obj-model.php
    └── camera.php
├── docker-entrypoint.sh
├── tests
    ├── extension-loading.phpt
    ├── glgetstring_basic.phpt
    └── glgeterror_basic.phpt
├── Dockerfile
├── .gitignore
├── .github
    └── workflows
    │   └── build-test.yml
├── php-sdl.Dockerfile
├── LICENSE
├── README.md
├── package.xml
├── config.m4
├── php_convert.h
├── php_opengl.h
└── php_convert.c


/.dockerignore:
--------------------------------------------------------------------------------
1 | .git
2 | 


--------------------------------------------------------------------------------
/CREDITS:
--------------------------------------------------------------------------------
1 | PHP-OpenGL
2 | Santiago Lizardo
3 | 


--------------------------------------------------------------------------------
/opengl.h:
--------------------------------------------------------------------------------
1 | #pragma once
2 | 
3 | #include <GL/gl.h>
4 | 
5 | 


--------------------------------------------------------------------------------
/opengl-camera-demo.gif:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Ponup/php-opengl/HEAD/opengl-camera-demo.gif


--------------------------------------------------------------------------------
/examples/textures/sample.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Ponup/php-opengl/HEAD/examples/textures/sample.png


--------------------------------------------------------------------------------
/examples/textures/sample2.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Ponup/php-opengl/HEAD/examples/textures/sample2.png


--------------------------------------------------------------------------------
/examples/textures/awesomeface.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Ponup/php-opengl/HEAD/examples/textures/awesomeface.png


--------------------------------------------------------------------------------
/examples/textures/container.jpg:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Ponup/php-opengl/HEAD/examples/textures/container.jpg


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/examples/shaders/lamp.frag:
--------------------------------------------------------------------------------
1 | #version 330 core
2 | out vec4 color;
3 | 
4 | void main()
5 | {
6 |     color = vec4(1.0f); // Set all 4 vector values to 1
7 | }
8 | 


--------------------------------------------------------------------------------
/examples/composer.json:
--------------------------------------------------------------------------------
1 | {
2 | 	"require": {
3 |     	"ponup/mammoth": "dev-master"
4 |     },
5 |     "minimum-stability": "dev",
6 |     "prefer-stable": true
7 | }
8 | 


--------------------------------------------------------------------------------
/examples/shaders/geometry-shader.fs:
--------------------------------------------------------------------------------
 1 | #version 330 core
 2 | out vec4 FragColor;
 3 | 
 4 | in vec3 fColor;
 5 | 
 6 | void main()
 7 | {
 8 |     FragColor = vec4(fColor, 1.0);   
 9 | }
10 | 


--------------------------------------------------------------------------------
/docker-entrypoint.sh:
--------------------------------------------------------------------------------
 1 | #!/usr/bin/env bash
 2 | 
 3 | Xvfb :99 -screen 0 800x600x24 -ac +extension GLX &
 4 | 
 5 | chmod +x ./run-tests.php
 6 | 
 7 | export DISPLAY=:99
 8 | ./run-tests.php -q --show-diff
 9 | 
10 | killall -9 Xvfb
11 | 


--------------------------------------------------------------------------------
/tests/extension-loading.phpt:
--------------------------------------------------------------------------------
 1 | --TEST--
 2 | Extension opengl is loaded.
 3 | --DESCRIPTION--
 4 | This test checks if the compiled extension is loaded.
 5 | --FILE--
 6 | <?php
 7 | extension_loaded('opengl') && print('OpenGL is loaded');
 8 | --EXPECT--
 9 | OpenGL is loaded
10 | 


--------------------------------------------------------------------------------
/examples/shaders/lamp.vs:
--------------------------------------------------------------------------------
 1 | #version 330 core
 2 | layout (location = 0) in vec3 position;
 3 | 
 4 | uniform mat4 model;
 5 | uniform mat4 view;
 6 | uniform mat4 projection;
 7 | 
 8 | void main()
 9 | {
10 |     gl_Position = projection * view * model * .2 * vec4(position, 1.0f);
11 | } 
12 | 
13 | 


--------------------------------------------------------------------------------
/examples/shaders/geometry-shader.vs:
--------------------------------------------------------------------------------
 1 | #version 330 core
 2 | layout (location = 0) in vec2 aPos;
 3 | layout (location = 1) in vec3 aColor;
 4 | 
 5 | out VS_OUT {
 6 |     vec3 color;
 7 | } vs_out;
 8 | 
 9 | void main()
10 | {
11 |     vs_out.color = aColor;
12 |     gl_Position = vec4(aPos.x, aPos.y, 0.0, 1.0); 
13 | }
14 | 


--------------------------------------------------------------------------------
/Dockerfile:
--------------------------------------------------------------------------------
 1 | FROM ponup/php-sdl
 2 | 
 3 | RUN apt-get install -y mesa-common-dev libgl1 libglvnd-dev
 4 | COPY . /opt/php-opengl
 5 | WORKDIR /opt/php-opengl
 6 | RUN phpize && ./configure && make install
 7 | RUN echo extension=opengl.so >> /etc/php/8.1/cli/php.ini
 8 | 
 9 | ENTRYPOINT ["/opt/php-opengl/docker-entrypoint.sh"]
10 | 
11 | 


--------------------------------------------------------------------------------
/examples/bootstrap.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | 
 3 | // Set strict mode and show all PHP warnings
 4 | error_reporting(E_ALL);
 5 | ini_set('display_errors', true);
 6 | 
 7 | // Load SDL and OpenGL extensions if they not already loaded
 8 | extension_loaded('sdl') || dl('sdl.' . PHP_SHLIB_SUFFIX);
 9 | extension_loaded('opengl') || dl('opengl.' . PHP_SHLIB_SUFFIX);
10 | 
11 | 
12 | 


--------------------------------------------------------------------------------
/examples/shaders/camera.vert:
--------------------------------------------------------------------------------
 1 | #version 330 core
 2 | layout (location = 0) in vec3 position;
 3 | layout (location = 2) in vec2 texCoord;
 4 | 
 5 | out vec2 TexCoord;
 6 | 
 7 | uniform mat4 model;
 8 | uniform mat4 view;
 9 | uniform mat4 projection;
10 | 
11 | void main()
12 | {
13 |     gl_Position = projection * view * model * vec4(position, 1.0f);
14 |     TexCoord = vec2(texCoord.x, 1.0 - texCoord.y);
15 | }
16 | 


--------------------------------------------------------------------------------
/examples/shaders/camera.frag:
--------------------------------------------------------------------------------
 1 | #version 330 core
 2 | in vec3 ourColor;
 3 | in vec2 TexCoord;
 4 | 
 5 | out vec4 color;
 6 | 
 7 | // Texture samplers
 8 | uniform sampler2D ourTexture1;
 9 | uniform sampler2D ourTexture2;
10 | 
11 | void main()
12 | {
13 |     // Linearly interpolate between both textures (second texture is only slightly combined)
14 |     color = mix(texture(ourTexture1, TexCoord), texture(ourTexture2, TexCoord), 0.2);
15 | }
16 | 


--------------------------------------------------------------------------------
/examples/shaders/transformations.frag:
--------------------------------------------------------------------------------
 1 | #version 330 core
 2 | in vec3 ourColor;
 3 | in vec2 TexCoord;
 4 | 
 5 | out vec4 color;
 6 | 
 7 | // Texture samplers
 8 | uniform sampler2D ourTexture1;
 9 | uniform sampler2D ourTexture2;
10 | 
11 | void main()
12 | {
13 |     // Linearly interpolate between both textures (second texture is only slightly combined)
14 |     color = mix(texture(ourTexture1, TexCoord), texture(ourTexture2, TexCoord), 0.2);
15 | }
16 | 


--------------------------------------------------------------------------------
/examples/shaders/transformations.vert:
--------------------------------------------------------------------------------
 1 | #version 330 core
 2 | layout (location = 0) in vec3 position;
 3 | layout (location = 1) in vec3 color;
 4 | layout (location = 2) in vec2 texCoord;
 5 | 
 6 | out vec3 ourColor;
 7 | out vec2 TexCoord;
 8 |   
 9 | uniform mat4 transform;
10 | 
11 | void main()
12 | {
13 |     gl_Position = transform * vec4(position, 1.0f);
14 |     ourColor = color;
15 |     TexCoord = vec2(texCoord.x, 1.0 - texCoord.y);
16 | } 
17 | 


--------------------------------------------------------------------------------
/examples/shaders/basic_lighting.vs:
--------------------------------------------------------------------------------
 1 | #version 330 core
 2 | 
 3 | in vec3 position;
 4 | in vec3 normal;
 5 | 
 6 | out vec3 Normal;
 7 | out vec3 FragPos;
 8 | 
 9 | uniform mat4 model;
10 | uniform mat4 view;
11 | uniform mat4 projection;
12 | 
13 | void main()
14 | {
15 |     gl_Position = projection * view *  model * vec4(position, 1.0f);
16 |     FragPos = vec3(model * vec4(position, 1.0f));
17 |     Normal = mat3(transpose(inverse(model))) * normal;  
18 | } 
19 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
 1 | *.o
 2 | *.lo
 3 | *.tgz
 4 | config.*
 5 | Makefile
 6 | Makefile.*
 7 | run-tests.php
 8 | mkinstalldirs
 9 | missing
10 | configure
11 | configure.in
12 | ltmain.sh
13 | build
14 | aclocal.m4
15 | acinclude.m4
16 | *.la
17 | .deps
18 | .libs
19 | install-sh
20 | autom4te.cache
21 | libtool
22 | modules
23 | nbproject
24 | vendor
25 | composer.phar
26 | configure.ac
27 | tests/*.diff
28 | tests/*.exp
29 | tests/*.out
30 | tests/*.log
31 | tests/*.sh
32 | tests/*.php
33 | .DS_Store
34 | .vscode
35 | tags
36 | *.dep
37 | 


--------------------------------------------------------------------------------
/.github/workflows/build-test.yml:
--------------------------------------------------------------------------------
 1 | name: Build and test
 2 | 
 3 | on:
 4 |   push:
 5 |     branches:
 6 |       - master
 7 | 
 8 | jobs:
 9 |   main:
10 |     runs-on: ubuntu-latest
11 |     steps:
12 |         - uses: actions/checkout@v1
13 |         - name: Build and tag SDL image
14 |           run: docker build -f php-sdl.Dockerfile -t ponup/php-sdl .
15 |         - name: Build and tag image
16 |           run: docker build -t ponup/php-opengl .
17 |         - name: Run tests
18 |           run: docker run --rm ponup/php-opengl
19 | 


--------------------------------------------------------------------------------
/examples/fixed-pipeline.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | 
 3 | require 'bootstrap.php';
 4 | 
 5 | SDL_Init(SDL_INIT_EVERYTHING);
 6 | 
 7 | $window = SDL_CreateWindow("Fixed pipeline example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN);
 8 | SDL_GL_CreateContext($window);
 9 | 
10 | glClearColor(0, 0, .2, 1); 
11 | glClear(GL_COLOR_BUFFER_BIT);
12 | SDL_GL_SwapWindow($window);
13 | 
14 | $event = new SDL_Event;
15 | while(true) {
16 | 	SDL_PollEvent($event);
17 | 	if($event->type == SDL_KEYDOWN) break;
18 | 	SDL_Delay(50);
19 | }
20 | 
21 | SDL_DestroyWindow($window);
22 | 
23 | 


--------------------------------------------------------------------------------
/php-sdl.Dockerfile:
--------------------------------------------------------------------------------
 1 | FROM debian:11
 2 | 
 3 | ARG TARGET_PHP_VERSION=8.1
 4 | 
 5 | RUN apt-get update
 6 | RUN apt-get install -y make build-essential wget
 7 | RUN apt-get install -y lsb-release apt-transport-https ca-certificates 
 8 | RUN wget -O /etc/apt/trusted.gpg.d/php.gpg https://packages.sury.org/php/apt.gpg
 9 | RUN echo "deb https://packages.sury.org/php/ $(lsb_release -sc) main" | tee /etc/apt/sources.list.d/php.list
10 | RUN apt-get update
11 | RUN apt-get install -y php${TARGET_PHP_VERSION}-dev
12 | RUN apt-get install -y libsdl2-dev
13 | RUN apt-get install -y xvfb
14 | COPY . /opt/php-sdl
15 | WORKDIR /opt/php-sdl
16 | RUN phpize
17 | RUN ./configure
18 | RUN make
19 | RUN make install
20 | RUN echo "extension=sdl.so" >> /etc/php/${TARGET_PHP_VERSION}/cli/php.ini
21 | 
22 | ENTRYPOINT ["/opt/php-sdl/docker-entrypoint.sh"]
23 | 
24 | 


--------------------------------------------------------------------------------
/tests/glgetstring_basic.phpt:
--------------------------------------------------------------------------------
 1 | --TEST--
 2 | Verifies glGetString returns a valid string.
 3 | --DESCRIPTION--
 4 | It also verifies all possible constants this function takes are defined.
 5 | --FILE--
 6 | <?php
 7 | $constants = [ 'GL_VENDOR', 'GL_RENDERER', 'GL_VERSION', 'GL_SHADING_LANGUAGE_VERSION' ];
 8 | foreach($constants as $constant) {
 9 |     echo $constant, defined($constant) ? ' is defined' : ' is undefined', PHP_EOL; 
10 | }
11 | 
12 | $window = SDL_CreateWindow('Test window', SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, SDL_WINDOW_OPENGL | SDL_WINDOW_HIDDEN);
13 | $context = SDL_GL_CreateContext($window);
14 | 
15 | echo gettype(glGetString(GL_VENDOR)), PHP_EOL;
16 | 
17 | SDL_GL_DeleteContext($context);
18 | SDL_DestroyWindow($window);
19 | --EXPECT--
20 | GL_VENDOR is defined
21 | GL_RENDERER is defined
22 | GL_VERSION is defined
23 | GL_SHADING_LANGUAGE_VERSION is defined
24 | string
25 | 


--------------------------------------------------------------------------------
/examples/shaders/geometry-shader.gs:
--------------------------------------------------------------------------------
 1 | #version 330 core
 2 | layout (points) in;
 3 | layout (triangle_strip, max_vertices = 5) out;
 4 | 
 5 | in VS_OUT {
 6 |     vec3 color;
 7 | } gs_in[];
 8 | 
 9 | out vec3 fColor;
10 | 
11 | void build_house(vec4 position)
12 | {    
13 |     fColor = gs_in[0].color; // gs_in[0] since there's only one input vertex
14 |     gl_Position = position + vec4(-0.2, -0.2, 0.0, 0.0); // 1:bottom-left   
15 |     EmitVertex();   
16 |     gl_Position = position + vec4( 0.2, -0.2, 0.0, 0.0); // 2:bottom-right
17 |     EmitVertex();
18 |     gl_Position = position + vec4(-0.2,  0.2, 0.0, 0.0); // 3:top-left
19 |     EmitVertex();
20 |     gl_Position = position + vec4( 0.2,  0.2, 0.0, 0.0); // 4:top-right
21 |     EmitVertex();
22 |     gl_Position = position + vec4( 0.0,  0.4, 0.0, 0.0); // 5:top
23 |     fColor = vec3(1.0, 1.0, 1.0);
24 |     EmitVertex();
25 |     EndPrimitive();
26 | }
27 | 
28 | void main() {    
29 |     build_house(gl_in[0].gl_Position);
30 | }
31 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
1 | Copyright 2022 Santiago Lizardo
2 | 
3 | Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
4 | 
5 | The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
6 | 
7 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
8 | 


--------------------------------------------------------------------------------
/examples/models/cube.obj:
--------------------------------------------------------------------------------
 1 | # cube.obj
 2 | #
 3 | 
 4 | o cube
 5 | mtllib cube.mtl
 6 | 
 7 | v -0.500000 -0.500000 0.500000
 8 | v 0.500000 -0.500000 0.500000
 9 | v -0.500000 0.500000 0.500000
10 | v 0.500000 0.500000 0.500000
11 | v -0.500000 0.500000 -0.500000
12 | v 0.500000 0.500000 -0.500000
13 | v -0.500000 -0.500000 -0.500000
14 | v 0.500000 -0.500000 -0.500000
15 | 
16 | vt 0.000000 0.000000
17 | vt 1.000000 0.000000
18 | vt 0.000000 1.000000
19 | vt 1.000000 1.000000
20 | 
21 | vn 0.000000 0.000000 1.000000
22 | vn 0.000000 1.000000 0.000000
23 | vn 0.000000 0.000000 -1.000000
24 | vn 0.000000 -1.000000 0.000000
25 | vn 1.000000 0.000000 0.000000
26 | vn -1.000000 0.000000 0.000000
27 | 
28 | g cube
29 | usemtl cube
30 | s 1
31 | f 1/1/1 2/2/1 3/3/1
32 | f 3/3/1 2/2/1 4/4/1
33 | s 2
34 | f 3/1/2 4/2/2 5/3/2
35 | f 5/3/2 4/2/2 6/4/2
36 | s 3
37 | f 5/4/3 6/3/3 7/2/3
38 | f 7/2/3 6/3/3 8/1/3
39 | s 4
40 | f 7/1/4 8/2/4 1/3/4
41 | f 1/3/4 8/2/4 2/4/4
42 | s 5
43 | f 2/1/5 8/2/5 4/3/5
44 | f 4/3/5 8/2/5 6/4/5
45 | s 6
46 | f 7/1/6 1/2/6 5/3/6
47 | f 5/3/6 1/2/6 3/4/6
48 | 
49 | 


--------------------------------------------------------------------------------
/tests/glgeterror_basic.phpt:
--------------------------------------------------------------------------------
 1 | --TEST--
 2 | Tests the glGetError function returns errors correctly.
 3 | --FILE--
 4 | <?php
 5 | $constants = [ 'GL_NO_ERROR', 'GL_INVALID_ENUM', 'GL_INVALID_VALUE', 'GL_INVALID_OPERATION', 'GL_INVALID_FRAMEBUFFER_OPERATION', 'GL_OUT_OF_MEMORY', 'GL_STACK_UNDERFLOW', 'GL_STACK_OVERFLOW' ];
 6 | foreach($constants as $constant) {
 7 |     echo $constant, defined($constant) ? ' is defined' : 'is undefined', PHP_EOL;
 8 | }
 9 | 
10 | $window = SDL_CreateWindow('Test window', SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, SDL_WINDOW_OPENGL | SDL_WINDOW_HIDDEN);
11 | $context = SDL_GL_CreateContext($window);
12 | 
13 | var_dump(glGetError() === GL_NO_ERROR);
14 | 
15 | SDL_GL_DeleteContext($context);
16 | SDL_DestroyWindow($window);
17 | --EXPECT--
18 | GL_NO_ERROR is defined
19 | GL_INVALID_ENUM is defined
20 | GL_INVALID_VALUE is defined
21 | GL_INVALID_OPERATION is defined
22 | GL_INVALID_FRAMEBUFFER_OPERATIONis undefined
23 | GL_OUT_OF_MEMORY is defined
24 | GL_STACK_UNDERFLOW is defined
25 | GL_STACK_OVERFLOW is defined
26 | bool(true)
27 | 


--------------------------------------------------------------------------------
/examples/shaders/basic_lighting.frag:
--------------------------------------------------------------------------------
 1 | #version 330 core
 2 | 
 3 | out vec4 color;
 4 | 
 5 | in vec3 FragPos;  
 6 | in vec3 Normal;  
 7 |   
 8 | uniform vec3 lightPos; 
 9 | uniform vec3 viewPos;
10 | uniform vec3 lightColor;
11 | uniform vec3 objectColor;
12 | 
13 | void main()
14 | {
15 |     vec3 objectColor = vec3(1, 0.5, 0.31);
16 |     vec3 lightColor = vec3(1, 1, 1);
17 |     vec3 lightPos = vec3(1.2, 1, 2);
18 |     vec3 viewPos = vec3(0,0,3);
19 | 
20 |     // Ambient
21 |     float ambientStrength = 0.1f;
22 |     vec3 ambient = ambientStrength * lightColor;
23 |   	
24 |     // Diffuse 
25 |     vec3 norm = normalize(Normal);
26 |     vec3 lightDir = normalize(lightPos - FragPos);
27 |     float diff = max(dot(norm, lightDir), 0.0);
28 |     vec3 diffuse = diff * lightColor;
29 |     
30 |     // Specular
31 |     float specularStrength = 0.5f;
32 |     vec3 viewDir = normalize(viewPos - FragPos);
33 |     vec3 reflectDir = reflect(-lightDir, norm);  
34 |     float spec = pow(max(dot(viewDir, reflectDir), 0.0), 32);
35 |     vec3 specular = specularStrength * spec * lightColor;  
36 |         
37 |     vec3 result = (ambient + diffuse + specular) * objectColor;
38 |     color = vec4(result, 1.0f);
39 | } 
40 | 


--------------------------------------------------------------------------------
/examples/models/sample.obj:
--------------------------------------------------------------------------------
 1 | # Blender3D v249 OBJ File: untitled.blend
 2 | # www.blender3d.org
 3 | mtllib cube.mtl
 4 | v 1.000000 -1.000000 -1.000000
 5 | v 1.000000 -1.000000 1.000000
 6 | v -1.000000 -1.000000 1.000000
 7 | v -1.000000 -1.000000 -1.000000
 8 | v 1.000000 1.000000 -1.000000
 9 | v 1.000000 1.000000 1.000000
10 | #v 0.999999 1.000000 1.000001
11 | v -1.000000 1.000000 1.000000
12 | v -1.000000 1.000000 -1.000000
13 | vt 0.748573 0.750412
14 | vt 0.749279 0.501284
15 | vt 0.999110 0.501077
16 | vt 0.999455 0.750380
17 | vt 0.250471 0.500702
18 | vt 0.249682 0.749677
19 | vt 0.001085 0.750380
20 | vt 0.001517 0.499994
21 | vt 0.499422 0.500239
22 | vt 0.500149 0.750166
23 | vt 0.748355 0.998230
24 | vt 0.500193 0.998728
25 | vt 0.498993 0.250415
26 | vt 0.748953 0.250920
27 | vn 0.000000 0.000000 -1.000000
28 | vn -1.000000 -0.000000 -0.000000
29 | vn -0.000000 -0.000000 1.000000
30 | vn -0.000001 0.000000 1.000000
31 | vn 1.000000 -0.000000 0.000000
32 | vn 1.000000 0.000000 0.000001
33 | vn 0.000000 1.000000 -0.000000
34 | vn -0.000000 -1.000000 0.000000
35 | usemtl Material_ray.png
36 | s off
37 | f 5/1/1 1/2/1 4/3/1
38 | f 5/1/1 4/3/1 8/4/1
39 | f 3/5/2 7/6/2 8/7/2
40 | f 3/5/2 8/7/2 4/8/2
41 | f 2/9/3 6/10/3 3/5/3
42 | f 6/10/4 7/6/4 3/5/4
43 | f 1/2/5 5/1/5 2/9/5
44 | f 5/1/6 6/10/6 2/9/6
45 | f 5/1/7 8/11/7 6/10/7
46 | f 8/11/7 7/12/7 6/10/7
47 | f 1/2/8 2/9/8 3/13/8
48 | f 1/2/8 3/13/8 4/14/8
49 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | [![Build and test](https://github.com/Ponup/php-opengl/actions/workflows/build-test.yml/badge.svg)](https://github.com/Ponup/php-opengl/actions/workflows/build-test.yml)
 2 | 
 3 | # PHP-OpenGL
 4 | 
 5 | PHP bindings of the OpenGL library. This library allows you to create inmersive 3D applications and games for the desktop with the comfort of the PHP language.
 6 | 
 7 | The extension only supports modern OpenGL and the core profile. The OpenGL compatibility profile (which provides functions such as glRotate, glBegin, glLight, etc...) is not supported.
 8 | 
 9 | [<img src="opengl-camera-demo.gif" width="250" />](opengl-camera-demo.gif)
10 | 
11 | ## Requirements
12 | 
13 | - PHP8.1
14 | - [SDL extension for PHP](https://github.com/Ponup/php-sdl)
15 | - OpenGL library/framework
16 | - Linux/MacOS (Windows support coming soon)
17 | - The PHP GD extension is required to run some of the examples.
18 | 
19 | ## Installation
20 | 
21 | ### Linux
22 | 
23 | ```bash
24 | pecl install opengl-devel
25 | ```
26 | 
27 | Or
28 | 
29 | ```bash
30 | git clone git@github.com:Ponup/php-opengl.git --recursive phpopengl
31 | cd php-opengl
32 | phpize
33 | ./configure --with-opengl
34 | make
35 | sudo make install
36 | ```
37 | 
38 | ## Examples
39 | 
40 | ```php
41 | <?php
42 | SDL_Init(SDL_INIT_EVERYTHING);
43 | 
44 | $window = SDL_CreateWindow("Fixed pipeline example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,                
45 |                 640, 480, SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN);                                                                                               
46 | SDL_GL_CreateContext($window);    
47 | 
48 | glClearColor(0, 0, .2, 1); 
49 | glClear(GL_COLOR_BUFFER_BIT);
50 | SDL_GL_SwapWindow($window);
51 | 
52 | $event = new SDL_Event;
53 | while(true) {
54 | 	SDL_PollEvent($event);
55 | 	if($event->type == SDL_KEYDOWN) break;
56 | 	SDL_Delay(50);
57 | }
58 | 
59 | SDL_DestroyWindow($window);
60 | ```
61 | 
62 | Complete examples can be found in the [examples](examples) folder.
63 | 
64 | 


--------------------------------------------------------------------------------
/examples/composer.lock:
--------------------------------------------------------------------------------
 1 | {
 2 |     "_readme": [
 3 |         "This file locks the dependencies of your project to a known state",
 4 |         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
 5 |         "This file is @generated automatically"
 6 |     ],
 7 |     "content-hash": "16bc4c38c63c2d2779948edfe915decc",
 8 |     "packages": [
 9 |         {
10 |             "name": "ponup/mammoth",
11 |             "version": "dev-master",
12 |             "source": {
13 |                 "type": "git",
14 |                 "url": "https://github.com/Ponup/mammoth-framework.git",
15 |                 "reference": "736fc837106bc3a953abefb6d8578c10d829020e"
16 |             },
17 |             "dist": {
18 |                 "type": "zip",
19 |                 "url": "https://api.github.com/repos/Ponup/mammoth-framework/zipball/736fc837106bc3a953abefb6d8578c10d829020e",
20 |                 "reference": "736fc837106bc3a953abefb6d8578c10d829020e",
21 |                 "shasum": ""
22 |             },
23 |             "require": {
24 |                 "php": "^8.2"
25 |             },
26 |             "require-dev": {
27 |                 "phpunit/phpunit": "^9"
28 |             },
29 |             "default-branch": true,
30 |             "type": "library",
31 |             "autoload": {
32 |                 "psr-4": {
33 |                     "Mammoth\\": "src"
34 |                 }
35 |             },
36 |             "notification-url": "https://packagist.org/downloads/",
37 |             "description": "Mammoth framework - Multimedia with PHP",
38 |             "support": {
39 |                 "issues": "https://github.com/Ponup/mammoth-framework/issues",
40 |                 "source": "https://github.com/Ponup/mammoth-framework/tree/master"
41 |             },
42 |             "time": "2023-01-01T16:32:49+00:00"
43 |         }
44 |     ],
45 |     "packages-dev": [],
46 |     "aliases": [],
47 |     "minimum-stability": "dev",
48 |     "stability-flags": {
49 |         "ponup/mammoth": 20
50 |     },
51 |     "prefer-stable": true,
52 |     "prefer-lowest": false,
53 |     "platform": [],
54 |     "platform-dev": [],
55 |     "plugin-api-version": "2.1.0"
56 | }
57 | 


--------------------------------------------------------------------------------
/examples/geometry-shader.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | 
 3 | require 'bootstrap.php';
 4 | require 'vendor/autoload.php';
 5 | 
 6 | use \Mammoth\Graphic\Shader;
 7 | 
 8 | const WindowWidth = 1280;
 9 | const WindowHeight = 720;
10 | 
11 | SDL_Init(SDL_INIT_EVERYTHING);
12 | 
13 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
14 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
15 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
16 | 
17 | $window = SDL_CreateWindow("Geometry shader example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, WindowWidth, WindowHeight, SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN);
18 | SDL_GL_CreateContext($window);
19 | 
20 | // Define the viewport dimensions
21 | glViewport(0, 0, WindowWidth, WindowHeight);
22 | 
23 | glEnable(GL_DEPTH_TEST);
24 | 
25 | $shaderProgram = new Shader\Program;
26 | $shaderProgram->add(new Shader\Vertex("shaders/geometry-shader.vs"));
27 | $shaderProgram->add(new Shader\Fragment("shaders/geometry-shader.fs"));
28 | $shaderProgram->add(new Shader\Geometry("shaders/geometry-shader.gs"));
29 | $shaderProgram->compile();
30 | $shaderProgram->link();
31 | 
32 |     // set up vertex data (and buffer(s)) and configure vertex attributes
33 | $points = [
34 |     -0.5,  0.5, 1.0, 0.0, 0.0, // top-left
35 |      0.5,  0.5, 0.0, 1.0, 0.0, // top-right
36 |      0.5, -0.5, 0.0, 0.0, 1.0, // bottom-right
37 |     -0.5, -0.5, 1.0, 1.0, 0.0  // bottom-left
38 | ];
39 | const SizeOfFloat = 4;
40 | 
41 | glGenBuffers(1, $VBOS);
42 | $VBO = $VBOS[0];
43 | glGenVertexArrays(1, $VAOS);
44 | $VAO = $VAOS[0];
45 | 
46 | glBindVertexArray($VAO);
47 | glBindBuffer(GL_ARRAY_BUFFER, $VBO);
48 | glBufferData(GL_ARRAY_BUFFER, sizeof($points), $points, GL_STATIC_DRAW);
49 | glEnableVertexAttribArray(0);
50 | glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 5 * SizeOfFloat, 0);
51 | glEnableVertexAttribArray(1);
52 | glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 5 * SizeOfFloat, (2 * SizeOfFloat));
53 | glBindVertexArray(0);
54 | 
55 | $shaderProgram->use();
56 | 
57 | $quit = false;
58 | $event = new SDL_Event;
59 | while (!$quit) {
60 |     glClearColor(0.1, 0.1, 0.1, 1.0);
61 |     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
62 | 
63 |     glBindVertexArray($VAO);
64 |     glDrawArrays(GL_POINTS, 0, 4);
65 | 
66 |     SDL_GL_SwapWindow($window);
67 | 
68 |     SDL_Delay(10);
69 |     while(SDL_PollEvent($event)) {
70 |         if($event->type == SDL_QUIT) $quit = true;
71 |     }
72 | }
73 | 
74 | glDeleteVertexArrays(1, $VAO);
75 | glDeleteBuffers(1, $VBO);
76 | 


--------------------------------------------------------------------------------
/examples/rectangle.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | 
 3 | require 'bootstrap.php';
 4 | 
 5 | SDL_Init(SDL_INIT_EVERYTHING);
 6 | 
 7 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
 8 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
 9 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
10 | 
11 | $window = SDL_CreateWindow("Fixed pipeline example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN);
12 | SDL_GL_CreateContext($window);
13 | 
14 | $vertices = [
15 |     +0.5, +.5, 0, // top right
16 |     +0.5, -.5, 0, // bottom right
17 |     -0.5, -.5, 0, // bottom left
18 |     -0.5, +.5, 0, // top left
19 | ];
20 | $indices = [
21 |     0, 1, 3, // first triangle
22 |     1, 2, 3, // second triangle
23 | ];
24 | 
25 | $vertexSource = <<<SHADER
26 | #version 330 core
27 | layout (location = 0) in vec3 position;
28 | void main() {
29 |     gl_Position = vec4(position.x, position.y, position.z, 1.0);
30 | }
31 | SHADER;
32 | 
33 | $fragmentSource = <<<SHADER
34 | #version 330 core
35 | out vec4 color;
36 | void main() {
37 |     color = vec4(1.0, 0.5, 0.5, 1.0);
38 | }
39 | SHADER;
40 | 
41 | $vertexShader = glCreateShader(GL_VERTEX_SHADER);
42 | glShaderSource($vertexShader, 1, $vertexSource, NULL);
43 | glCompileShader($vertexShader);
44 | 
45 | $fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
46 | glShaderSource($fragmentShader, 1, $fragmentSource, NULL);
47 | glCompileShader($fragmentShader);
48 | 
49 | $shaderProgram = glCreateProgram();
50 | glAttachShader($shaderProgram, $vertexShader);
51 | glAttachShader($shaderProgram, $fragmentShader);
52 | glLinkProgram($shaderProgram);
53 | 
54 | glGenVertexArrays(1, $vaos);
55 | $vao = $vaos[0];
56 | glGenBuffers(1, $vbos);
57 | $vbo = $vbos[0];
58 | glGenBuffers(1, $ebos);
59 | $ebo = $ebos[0];
60 | 
61 | glBindVertexArray($vao);
62 | 
63 |     glBindBuffer(GL_ARRAY_BUFFER, $vbo);
64 |     glBufferData(GL_ARRAY_BUFFER, count($vertices) * 4, $vertices, GL_STATIC_DRAW);
65 | 
66 |     glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, $ebo);
67 |     glBufferData(GL_ELEMENT_ARRAY_BUFFER, count($indices) * 4, $indices, GL_STATIC_DRAW);
68 |     glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * 4, 0);
69 |     glEnableVertexAttribArray(0);
70 | 
71 |     glBindBuffer(GL_ARRAY_BUFFER, 0);
72 | glBindVertexArray(0);
73 | 
74 | $event = new SDL_Event;
75 | 
76 | while(true) {
77 |     glClearColor(.2, .3, .3, 1);
78 |     glClear(GL_COLOR_BUFFER_BIT);
79 | 
80 |     glUseProgram($shaderProgram);
81 |     glBindVertexArray($vao);
82 |     glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, null);
83 |     glBindVertexArray(0);
84 | 	SDL_GL_SwapWindow($window);
85 | 
86 | 	SDL_Delay(50);
87 | 	SDL_PollEvent($event);
88 | 	if($event->type == SDL_KEYDOWN) break; 
89 | }
90 | 
91 | SDL_DestroyWindow($window);
92 | 
93 | 


--------------------------------------------------------------------------------
/package.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <package xmlns="http://pear.php.net/dtd/package-2.0" xmlns:tasks="http://pear.php.net/dtd/tasks-1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" packagerversion="1.9.0" version="2.0" xsi:schemaLocation="http://pear.php.net/dtd/tasks-1.0 http://pear.php.net/dtd/tasks-1.0.xsd http://pear.php.net/dtd/package-2.0 http://pear.php.net/dtd/package-2.0.xsd">
 3 |   <name>opengl</name>
 4 |   <channel>pecl.php.net</channel>
 5 |   <summary>OpenGL (3D graphics library) for PHP</summary>
 6 |   <description>This extension allows you to develop 3D multimedia applications with PHP using the complete OpenGL library API.</description>
 7 |   <lead>
 8 |     <name>Santiago Lizardo</name>
 9 |     <user>santiagolizardo</user>
10 |     <email>santiagolizardo@php.net</email>
11 |     <active>yes</active>
12 |   </lead>
13 |   <date>2019-09-02</date>
14 |   <time>12:00:00</time>
15 |   <version>
16 |     <release>0.9.10</release>
17 |     <api>0.9.10</api>
18 |   </version>
19 |   <stability>
20 |     <release>beta</release>
21 |     <api>beta</api>
22 |   </stability>
23 |   <license uri="http://www.php.net/license">PHP License</license>
24 |   <notes>
25 |   	  - Fix memory leaks.
26 |   	  - Improve build files.
27 |   	  - Remove deprecated code.
28 |   </notes>
29 |   <contents>
30 |     <dir name="/">
31 |       <file role="src" name="config.m4"/>
32 |       <file role="src" name="php_convert.c"/>
33 |       <file role="src" name="php_convert.h"/>
34 |       <file role="src" name="php_opengl.c"/>
35 |       <file role="src" name="php_opengl.h"/>
36 |       <file role="src" name="opengl.h"/>
37 |       <file role="doc" name="CREDITS"/>
38 |       <file role="doc" name="LICENSE"/>
39 |     	<dir name="tests">
40 | 			<file role="test" name="extension-loading.phpt"/>
41 | 			<file role="test" name="glgeterror_basic.phpt"/>
42 | 			<file role="test" name="glgetstring_basic.phpt"/>
43 |     	</dir>
44 |     </dir>
45 |   </contents>
46 |   <dependencies>
47 |     <required>
48 |       <php>
49 |         <min>7.3.0</min>
50 |       </php>
51 |       <pearinstaller>
52 |         <min>1.9</min>
53 |       </pearinstaller>
54 |       <extension>
55 |         <name>sdl</name>
56 |       </extension>
57 |     </required>
58 |   </dependencies>
59 |   <providesextension>opengl</providesextension>
60 |   <extsrcrelease>
61 |     <configureoption default="autodetect" name="with-opengl" prompt="The location of the OpenGL library"/>
62 |   </extsrcrelease>
63 |   <changelog>
64 |   	  <release>
65 |   		  <date>2018-09-22</date>
66 |   		  <time>12:00:00</time>
67 |   		  <version>
68 |     		<release>0.9.0</release>
69 |     		<api>0.9.0</api>
70 |   		  </version>
71 |   		  <stability>
72 |     		<release>beta</release>
73 |     		<api>beta</api>
74 |   		  </stability>
75 |   		  <notes>
76 |     		- Better PHP7.2 support.
77 |     		- Example scripts included in the main extension package.
78 |   		  </notes>
79 | 		</release>
80 |   </changelog>
81 | </package>
82 | 


--------------------------------------------------------------------------------
/examples/basic-shader.php:
--------------------------------------------------------------------------------
  1 | <?php
  2 | 
  3 | require 'bootstrap.php';
  4 | 
  5 | $vertexSource = <<<SHADER
  6 | #version 150 core
  7 | 
  8 | in vec2 position;
  9 | in vec3 color;
 10 | out vec3 Color;
 11 | 
 12 | void main() {
 13 |     Color = color;
 14 |     gl_Position = vec4(position, 0.0, 1.0);
 15 | }
 16 | SHADER;
 17 | 
 18 | $fragmentSource = <<<SHADER
 19 | #version 150 core
 20 | 
 21 | in vec3 Color;
 22 | out vec4 outColor;
 23 | 
 24 | void main() {
 25 |     outColor = vec4(Color, 1.0);
 26 | }
 27 | SHADER;
 28 | 
 29 | SDL_Init(SDL_INIT_EVERYTHING);
 30 | 
 31 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
 32 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
 33 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
 34 | 
 35 | $window = SDL_CreateWindow("Basic shader example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN);
 36 | SDL_GL_CreateContext($window);
 37 | 
 38 | // https://open.gl/content/code/c2_triangle_elements.txt
 39 | 
 40 | glGenVertexArrays(1, $vaos);
 41 | $vao = array_pop($vaos);
 42 | glBindVertexArray($vao);
 43 | 
 44 | // Create a Vertex Buffer Object and copy the vertex data to it;
 45 | glGenBuffers(1, $vbos);
 46 | $vbo = array_pop($vbos);
 47 | 
 48 | $vertices = [
 49 |     -0.5, 0.5, 1.0, 0.0, 0.0, // Top-left
 50 |     0.5, 0.5, 0.0, 1.0, 0.0, // Top-right
 51 |     0.5, -0.5, 0.0, 0.0, 1.0, // Bottom-right
 52 |     -0.5, -0.5, 1.0, 1.0, 1.0  // Bottom-left
 53 | ];
 54 | 
 55 | glBindBuffer(GL_ARRAY_BUFFER, $vbo);
 56 | glBufferData(GL_ARRAY_BUFFER, count($vertices) * 4, $vertices, GL_STATIC_DRAW);
 57 | 
 58 | // Create an element array
 59 | glGenBuffers(1, $ebos);
 60 | $ebo = array_pop($ebos);
 61 | 
 62 | $elements = [
 63 |     0, 1, 2,
 64 |     2, 3, 0
 65 | ];
 66 | 
 67 | glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, $ebo);
 68 | glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof($elements) * 4, $elements, GL_STATIC_DRAW);
 69 | 
 70 | // Create and compile the vertex shader
 71 | $vertexShader = glCreateShader(GL_VERTEX_SHADER);
 72 | glShaderSource($vertexShader, 1, $vertexSource, NULL);
 73 | glCompileShader($vertexShader);
 74 | 
 75 | // Create and compile the fragment shader
 76 | $fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
 77 | glShaderSource($fragmentShader, 1, $fragmentSource, NULL);
 78 | glCompileShader($fragmentShader);
 79 | 
 80 | // Link the vertex and fragment shader into a shader program
 81 | $shaderProgram = glCreateProgram();
 82 | glAttachShader($shaderProgram, $vertexShader);
 83 | glAttachShader($shaderProgram, $fragmentShader);
 84 | glBindFragDataLocation($shaderProgram, 0, "outColor");
 85 | glLinkProgram($shaderProgram);
 86 | glUseProgram($shaderProgram);
 87 | // Specify the layout of the vertex data
 88 | $posAttrib = glGetAttribLocation($shaderProgram, "position");
 89 | glEnableVertexAttribArray($posAttrib);
 90 | glVertexAttribPointer($posAttrib, 2, GL_FLOAT, GL_FALSE, 5 * 4, 0);
 91 | 
 92 | $colAttrib = glGetAttribLocation($shaderProgram, "color");
 93 | glEnableVertexAttribArray($colAttrib);
 94 | glVertexAttribPointer($colAttrib, 3, GL_FLOAT, GL_FALSE, 5 * 4, 2 * 4);
 95 | 
 96 | $event = new SDL_Event;
 97 | 
 98 | while(true) {
 99 |     // Clear the screen to black
100 |     glClearColor(0, 0.0, 0.0, 1.0);
101 |     glClear(GL_COLOR_BUFFER_BIT);
102 | 
103 |     // Draw a rectangle from the 2 triangles using 6 indices
104 |     glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, null);
105 | 
106 | 	SDL_GL_SwapWindow($window);
107 | 
108 | 	SDL_PollEvent($event);
109 | 	if($event->type == SDL_KEYDOWN) break;
110 | 
111 | 	SDL_Delay(50);
112 | }
113 | 
114 | 
115 | glDeleteProgram($shaderProgram);
116 | glDeleteShader($fragmentShader);
117 | glDeleteShader($vertexShader);
118 | 
119 | glDeleteBuffers(1, $ebo);
120 | glDeleteBuffers(1, $vbo);
121 | 
122 | glDeleteVertexArrays(1, $vao);
123 | 
124 | 


--------------------------------------------------------------------------------
/config.m4:
--------------------------------------------------------------------------------
  1 | dnl config.m4 for extension opengl
  2 | 
  3 | PHP_ARG_WITH(opengl, for opengl support,
  4 | [  --with-opengl=DIR       Include OpenGL support])
  5 | 
  6 | PHP_ARG_ENABLE(opengl-debug, whether to enable PHP-OpenGL debug support,
  7 | [  --enable-opengl-debug     Enable OpenGL debug support], no, no)
  8 | 
  9 | CFLAGS="$CFLAGS -Wall -Wfatal-errors"
 10 | 
 11 | if test "$PHP_OPENGL" != "no"; then
 12 | 
 13 |   if test -r $PHP_OPENGL/include/GL/gl.h; then
 14 |     OPENGL_DIR=$PHP_OPENGL
 15 |   else
 16 |     AC_MSG_CHECKING(for OpenGL development files in default path)
 17 |     for i in /usr/X11R6 /usr/local /usr /System/Library/Frameworks/OpenGL.framework/Headers; do
 18 |       if test -r $i/include/GL/gl.h ; then
 19 |         OPENGL_DIR=$i
 20 |         AC_MSG_RESULT(found in $i)
 21 |       fi
 22 |       if test -r $i/gl.h ; then
 23 |         OPENGL_DIR=$i
 24 |         AC_MSG_RESULT(found in $i)
 25 |       fi
 26 | 
 27 |     done
 28 |   fi
 29 | 
 30 |   if test -z "$OPENGL_DIR"; then
 31 |     AC_MSG_RESULT(not found)
 32 |     AC_MSG_ERROR(Please make sure OpenGL is properly installed - gl.h should be in <opengl-dir>/include/GL/)
 33 |   fi
 34 | 
 35 |   saved_LIBS="$LIBS"
 36 | 
 37 |   failed=yes
 38 |   for additional_libs in "" -lm; do
 39 |     if test ! -z "$additional_libs"; then
 40 |       AC_MSG_RESULT(with additional library $additional_libs)
 41 |     fi
 42 |     AC_MSG_CHECKING(if  OpenGL links properly)
 43 |     case $build_os in
 44 |     darwin*)
 45 |     LIBS="$saved_LIBS -Framework GL $additional_libs"
 46 |     ;;
 47 |     *)
 48 |     LIBS="$saved_LIBS -lGL $additional_libs"
 49 |     ;;
 50 |     esac
 51 |     AC_TRY_LINK( ,[char glBegin(); glBegin(); ], have_GL=yes, have_GL=no)
 52 |     AC_MSG_RESULT($have_GL)
 53 | 
 54 |     if test "$have_GL" = "no"; then
 55 |       AC_MSG_CHECKING(if  MesaGL links properly)
 56 |       LIBS="$saved_LIBS -lMesaGL $additional_libs"
 57 |       AC_TRY_LINK( ,[char glBegin(); glBegin(); ], have_MesaGL=yes, have_MesaGL=no)
 58 |       AC_MSG_RESULT($have_MesaGL)
 59 |   
 60 |       if test "$have_MesaGL" = "no"; then
 61 |         AC_MSG_CHECKING(if  MesaGL with pthreads links properly)
 62 |         LIBS="$saved_LIBS -L$OPENGL_DIR/lib -lMesaGL -lpthread $additional_libs"
 63 |         AC_TRY_LINK( ,[char glBegin(); glBegin(); ], have_MesaGL_pthreads=yes, have_MesaGL_pthreads=no)
 64 |         AC_MSG_RESULT($have_MesaGL_pthreads)
 65 |   
 66 |         if test "$have_MesaGL_pthreads" != "no"; then
 67 |           LIBS="$saved_LIBS"
 68 |           PHP_ADD_LIBRARY_WITH_PATH(pthread, $OPENGL_DIR/lib, OPENGL_SHARED_LIBADD)
 69 |           PHP_ADD_LIBRARY_WITH_PATH(MesaGL, $OPENGL_DIR/lib, OPENGL_SHARED_LIBADD)
 70 |           failed=no
 71 |         fi
 72 |       else
 73 |         LIBS="$saved_LIBS"
 74 |         PHP_ADD_LIBRARY_WITH_PATH(MesaGL, $OPENGL_DIR/lib, OPENGL_SHARED_LIBADD)
 75 |         failed=no
 76 |       fi
 77 |     else
 78 |       LIBS="$saved_LIBS"
 79 |       failed=no
 80 |     fi
 81 |     if test "$failed" = "no"; then
 82 |       if test ! -z "$additional_libs"; then
 83 |         PHP_EVAL_LIBLINE($additional_libs, OPENGL_SHARED_LIBADD)
 84 |       fi
 85 |       break
 86 |     fi
 87 |   done
 88 |   if test "$failed" = "yeso"; then
 89 |     AC_MSG_ERROR(Can't find OpenGL nor MesaGL)
 90 |   fi
 91 |   unset additional_libs
 92 | 
 93 |   dnl {{{ --enable-opengl-debug
 94 |   if test "$PHP_OPENGL_DEBUG" != "no"; then
 95 |     CFLAGS="$CFLAGS -Wall -Wpedantic -g -ggdb -O0"
 96 |   fi
 97 |   dnl }}}
 98 | 
 99 |     case $build_os in
100 |     darwin*)
101 | 	PHP_ADD_FRAMEWORK(GL)
102 | 	PHP_ADD_INCLUDE(/System/Library/Frameworks/OpenGL.framework/Headers)
103 |     ;;
104 |     *)
105 | 	PHP_ADD_LIBRARY_WITH_PATH(GL, /usr/$PHP_LIBDIR, OPENGL_SHARED_LIBADD)
106 |     ;;
107 |     esac
108 | 
109 |   PHP_ADD_INCLUDE($OPENGL_DIR/include)
110 | 
111 |   PHP_NEW_EXTENSION(opengl, php_convert.c php_opengl.c, $ext_shared)
112 |   PHP_SUBST(OPENGL_SHARED_LIBADD)
113 |   PHP_ADD_EXTENSION_DEP(opengl, sdl)
114 |   
115 | fi
116 | 
117 | 


--------------------------------------------------------------------------------
/php_convert.h:
--------------------------------------------------------------------------------
 1 | /*
 2 |   +----------------------------------------------------------------------+
 3 |   | PHP Version 7                                                        |
 4 |   +----------------------------------------------------------------------+
 5 |   | Copyright (c) 1997-2016 The PHP Group                                |
 6 |   +----------------------------------------------------------------------+
 7 |   | This source file is subject to version 3.01 of the PHP license,      |
 8 |   | that is bundled with this package in the file LICENSE, and is        |
 9 |   | available through the world-wide-web at the following url:           |
10 |   | http://www.php.net/license/3_01.txt                                  |
11 |   | If you did not receive a copy of the PHP license and are unable to   |
12 |   | obtain it through the world-wide-web, please send a note to          |
13 |   | license@php.net so we can mail you a copy immediately.               |
14 |   +----------------------------------------------------------------------+
15 |   | Author: Santiago Lizardo <santiagolizardo@php.net>                   |
16 |   +----------------------------------------------------------------------+
17 |  */
18 | 
19 | #include "opengl.h"
20 | #include "php.h"
21 | 
22 | #define C_INT_TO_PHP_LONG 1
23 | #define C_LONG_TO_PHP_LONG 2
24 | #define C_FLOAT_TO_PHP_DOUBLE 3
25 | #define C_DOUBLE_TO_PHP_DOUBLE 4
26 | #define C_BOOLEAN_TO_PHP_BOOLEAN 5
27 | #define C_CHAR_TO_PHP_LONG 6
28 | #define C_UINT_TO_PHP_LONG 7
29 | #define C_USHORT_TO_PHP_LONG 8
30 | 
31 | #define TO_C_LONG 1
32 | #define TO_C_DOUBLE 2
33 | #define TO_C_INT 3
34 | #define TO_C_FLOAT 4
35 | #define TO_C_UCHAR 5
36 | #define TO_C_SCHAR 6
37 | #define TO_C_USHORT 7
38 | #define TO_C_SHORT 8
39 | #define TO_C_UINT 9
40 | #define TO_C_STRING 10
41 | #define TO_C_BYTE 11
42 | #define TO_C_UBYTE 12
43 | 
44 | void c_array_to_php_array(void *c_array, int num, zval *php_array, int type);
45 | #define int_array_to_php_array(a,i,z) c_array_to_php_array(a,i,z,C_INT_TO_PHP_LONG)
46 | #define uint_array_to_php_array(a,i,z) c_array_to_php_array(a,i,z,C_UINT_TO_PHP_LONG)
47 | #define long_array_to_php_array(a,i,z) c_array_to_php_array(a,i,z,C_LONG_TO_PHP_LONG)
48 | #define float_array_to_php_array(a,i,z) c_array_to_php_array(a,i,z,C_FLOAT_TO_PHP_DOUBLE)
49 | #define boolean_array_to_php_array(a,i,z) c_array_to_php_array(a,i,z,C_BOOLEAN_TO_PHP_BOOLEAN)
50 | #define double_array_to_php_array(a,i,z) c_array_to_php_array(a,i,z,C_DOUBLE_TO_PHP_DOUBLE)
51 | #define ushort_array_to_php_array(a,i,z) c_array_to_php_array(a,i,z,C_USHORT_TO_PHP_LONG)
52 | #define char_array_to_php_array(a,i,z) c_array_to_php_array(a,i,z,C_CHAR_TO_PHP_LONG)
53 | 
54 | void *php_array_to_c_array(zval *param, int type, int size, int *array_size);
55 | #define php_array_to_string_array(z) (char **)php_array_to_c_array(z,TO_C_STRING,sizeof(char *),NULL)
56 | #define php_array_to_byte_array(z) (char *)php_array_to_c_array(z,TO_C_BYTE,sizeof(char),NULL)
57 | #define php_array_to_ubyte_array(z) (unsigned char*)php_array_to_c_array(z,TO_C_UBYTE,sizeof(unsigned char),NULL)
58 | #define php_array_to_long_array(z) (long *)php_array_to_c_array(z,TO_C_LONG,sizeof(long),NULL)
59 | #define php_array_to_double_array(z) (double *)php_array_to_c_array(z,TO_C_DOUBLE,sizeof(double),NULL)
60 | #define php_array_to_int_array(z) (int *)php_array_to_c_array(z,TO_C_INT,sizeof(int),NULL)
61 | #define php_array_to_float_array(z) (float *)php_array_to_c_array(z,TO_C_FLOAT,sizeof(float),NULL)
62 | #define php_array_to_uchar_array(z) (unsigned char *)php_array_to_c_array(z,TO_C_UCHAR,sizeof(unsigned char),NULL)
63 | #define php_array_to_schar_array(z) (signed char *)php_array_to_c_array(z,TO_C_SCHAR,sizeof(signed char),NULL)
64 | #define php_array_to_ushort_array(z) (unsigned short *)php_array_to_c_array(z,TO_C_USHORT,sizeof(unsigned short),NULL)
65 | #define php_array_to_short_array(z) (short *)php_array_to_c_array(z,TO_C_SHORT,sizeof(short),NULL)
66 | #define php_array_to_uint_array(z) (unsigned int *)php_array_to_c_array(z,TO_C_UINT,sizeof(unsigned int),NULL)
67 | 
68 | int gl_pixel_size(GLenum format);
69 | int gl_type_size(GLenum type);
70 | 
71 | 


--------------------------------------------------------------------------------
/php_opengl.h:
--------------------------------------------------------------------------------
  1 | /*
  2 |   +----------------------------------------------------------------------+
  3 |   | PHP Version 7                                                        |
  4 |   +----------------------------------------------------------------------+
  5 |   | Copyright (c) 1997-2016 The PHP Group                                |
  6 |   +----------------------------------------------------------------------+
  7 |   | This source file is subject to version 3.01 of the PHP license,      |
  8 |   | that is bundled with this package in the file LICENSE, and is        |
  9 |   | available through the world-wide-web at the following url:           |
 10 |   | http://www.php.net/license/3_01.txt                                  |
 11 |   | If you did not receive a copy of the PHP license and are unable to   |
 12 |   | obtain it through the world-wide-web, please send a note to          |
 13 |   | license@php.net so we can mail you a copy immediately.               |
 14 |   +----------------------------------------------------------------------+
 15 |   | Author: Santiago Lizardo <santiagolizardo@php.net>                   |
 16 |   +----------------------------------------------------------------------+
 17 |  */
 18 | 
 19 | #ifndef PHP_OPENGL_H
 20 | #define PHP_OPENGL_H
 21 | 
 22 | #define PHP_OPENGL_VERSION "0.9.10"
 23 | 
 24 | #include "php.h"
 25 | #include "ext/standard/info.h"
 26 | 
 27 | extern zend_module_entry opengl_module_entry;
 28 | #define opengl_module_ptr &opengl_module_entry
 29 | #define phpext_opengl_ptr opengl_module_ptr
 30 | 
 31 | #ifdef ZTS
 32 | #include "TSRM.h"
 33 | #endif
 34 | 
 35 | PHP_MINIT_FUNCTION(opengl);
 36 | PHP_MINFO_FUNCTION(opengl);
 37 | 
 38 | PHP_FUNCTION(glbindtexture);
 39 | PHP_FUNCTION(glblendfunc);
 40 | PHP_FUNCTION(glclear);
 41 | PHP_FUNCTION(glclearcolor);
 42 | PHP_FUNCTION(glcleardepth);
 43 | PHP_FUNCTION(glclearstencil);
 44 | PHP_FUNCTION(glcolormask);
 45 | PHP_FUNCTION(glcopyteximage1d);
 46 | PHP_FUNCTION(glcopytexsubimage1d);
 47 | PHP_FUNCTION(glcullface);
 48 | PHP_FUNCTION(gldeletetextures);
 49 | PHP_FUNCTION(gldepthfunc);
 50 | PHP_FUNCTION(gldepthmask);
 51 | PHP_FUNCTION(gldepthrange);
 52 | PHP_FUNCTION(gldisable);
 53 | PHP_FUNCTION(gldrawarrays);
 54 | PHP_FUNCTION(gldrawbuffer);
 55 | PHP_FUNCTION(gldrawelements);
 56 | PHP_FUNCTION(glenable);
 57 | PHP_FUNCTION(glfinish);
 58 | PHP_FUNCTION(glflush);
 59 | PHP_FUNCTION(glfrontface);
 60 | PHP_FUNCTION(glgentextures);
 61 | PHP_FUNCTION(glgetbooleanv);
 62 | PHP_FUNCTION(glgetdoublev);
 63 | PHP_FUNCTION(glgeterror);
 64 | PHP_FUNCTION(glgetfloatv);
 65 | PHP_FUNCTION(glgetintegerv);
 66 | PHP_FUNCTION(glGetString);
 67 | PHP_FUNCTION(glgetteximage);
 68 | PHP_FUNCTION(glgettexlevelparameterfv);
 69 | PHP_FUNCTION(glgettexlevelparameteriv);
 70 | PHP_FUNCTION(glgettexparameterfv);
 71 | PHP_FUNCTION(glgettexparameteriv);
 72 | PHP_FUNCTION(glhint);
 73 | PHP_FUNCTION(glisenabled);
 74 | PHP_FUNCTION(glistexture);
 75 | PHP_FUNCTION(gllinewidth);
 76 | PHP_FUNCTION(gllogicop);
 77 | PHP_FUNCTION(glpixelstoref);
 78 | PHP_FUNCTION(glpixelstorei);
 79 | PHP_FUNCTION(glpointsize);
 80 | PHP_FUNCTION(glpolygonmode);
 81 | PHP_FUNCTION(glpolygonoffset);
 82 | PHP_FUNCTION(glpolygonstipple);
 83 | PHP_FUNCTION(glreadbuffer);
 84 | PHP_FUNCTION(glreadpixels);
 85 | PHP_FUNCTION(glscissor);
 86 | PHP_FUNCTION(glstencilfunc);
 87 | PHP_FUNCTION(glstencilmask);
 88 | PHP_FUNCTION(glstencilop);
 89 | PHP_FUNCTION(glteximage2d);
 90 | PHP_FUNCTION(gltexparameterf);
 91 | PHP_FUNCTION(gltexparameterfv);
 92 | PHP_FUNCTION(gltexparameteri);
 93 | PHP_FUNCTION(gltexparameteriv);
 94 | PHP_FUNCTION(gltexsubimage1d);
 95 | PHP_FUNCTION(gltexsubimage2d);
 96 | PHP_FUNCTION(glviewport);
 97 | PHP_FUNCTION(glGenVertexArrays);
 98 | PHP_FUNCTION(glBindVertexArray);
 99 | PHP_FUNCTION(glGenBuffers);
100 | PHP_FUNCTION(glBindBuffer);
101 | PHP_FUNCTION(glbufferdata);
102 | PHP_FUNCTION(glCreateShader);
103 | PHP_FUNCTION(gldeletevertexarrays);
104 | PHP_FUNCTION(gldeletebuffers);
105 | PHP_FUNCTION(gldeleteshader);
106 | PHP_FUNCTION(gldeleteprogram);
107 | PHP_FUNCTION(glshadersource);
108 | PHP_FUNCTION(glcompileshader);
109 | PHP_FUNCTION(glattachshader);
110 | PHP_FUNCTION(glbindfragdatalocation);
111 | PHP_FUNCTION(gllinkprogram);
112 | PHP_FUNCTION(gluseprogram);
113 | PHP_FUNCTION(glcreateprogram);
114 | PHP_FUNCTION(glgetattriblocation);
115 | PHP_FUNCTION(glenablevertexattribarray);
116 | PHP_FUNCTION(gldisablevertexattribarray);
117 | PHP_FUNCTION(glvertexattribpointer);
118 | PHP_FUNCTION(glGetUniformLocation);
119 | PHP_FUNCTION(glActiveTexture);
120 | PHP_FUNCTION(glUniformMatrix4fv);
121 | PHP_FUNCTION(glUniform1i);
122 | PHP_FUNCTION(glUniform3f);
123 | 
124 | #endif
125 | 


--------------------------------------------------------------------------------
/examples/shader-effect.php:
--------------------------------------------------------------------------------
  1 | <?php
  2 | 
  3 | use Mammoth\Graphic\ImageLoader;
  4 | 
  5 | require 'bootstrap.php';
  6 | require 'vendor/autoload.php';
  7 | 
  8 | // Shader sources
  9 | $vertexSource = <<<GLSL
 10 | #version 150 core
 11 | 
 12 | in vec2 position;
 13 | in vec2 texcoord;
 14 | 
 15 | out vec2 Texcoord;
 16 | 
 17 | void main() {
 18 | 	Texcoord = texcoord;
 19 | 	gl_Position = vec4(position, 0.0, 1.0);
 20 | }
 21 | GLSL;
 22 | $fragmentSource = <<<GLSL
 23 | #version 150 core
 24 | 
 25 | in vec2 Texcoord;
 26 | 
 27 | uniform sampler2D texKitten;
 28 | uniform sampler2D texPuppy;
 29 | uniform float time;
 30 | 
 31 | out vec4 outColor;
 32 | 
 33 | void main() {
 34 | 	float factor = (sin(time * 3.0) + 1.0) / 2.0;
 35 | 	outColor = mix(texture(texKitten, Texcoord), texture(texPuppy, Texcoord), factor);
 36 | 	if (Texcoord.y < 0.6)
 37 | 		outColor = texture(texKitten, Texcoord);
 38 | 	else
 39 | 		outColor = texture(texKitten, vec2(Texcoord.x + sin(Texcoord.y * 60.0 + time * 2.0) / 30.0, 1.0 - Texcoord.y)) * vec4(0.7, 0.7, 1.0, 1.0);
 40 | }
 41 | GLSL;
 42 | 
 43 | SDL_Init(SDL_INIT_EVERYTHING);
 44 | 
 45 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
 46 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
 47 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
 48 | 
 49 | $window = SDL_CreateWindow("Shader effect", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN);
 50 | SDL_GL_CreateContext($window);
 51 | 
 52 | // Create Vertex Array Object
 53 | glGenVertexArrays(1, $vaos);
 54 | $vao = $vaos[0];
 55 | glBindVertexArray($vao);
 56 | 
 57 | // Create a Vertex Buffer Object and copy the vertex data to it
 58 | glGenBuffers(1, $vbos);
 59 | $vbo = $vbos[0];
 60 | 
 61 | $vertices = [
 62 |     //  Position      Color             Texcoords
 63 |     -0.5,  0.5, 1.0, 0.0, 0.0, 0.0, 0.0, // Top-left
 64 |     0.5,  0.5, 0.0, 1.0, 0.0, 1.0, 0.0, // Top-right
 65 |     0.5, -0.5, 0.0, 0.0, 1.0, 1.0, 1.0, // Bottom-right
 66 |     -0.5, -0.5, 1.0, 1.0, 1.0, 0.0, 1.0  // Bottom-left
 67 | ];
 68 | 
 69 | glBindBuffer(GL_ARRAY_BUFFER, $vbo);
 70 | glBufferData(GL_ARRAY_BUFFER, sizeof($vertices) * 4, $vertices, GL_STATIC_DRAW);
 71 | 
 72 | // Create an element array
 73 | glGenBuffers(1, $ebos);
 74 | $ebo = $ebos[0];
 75 | 
 76 | $elements = [
 77 |     0, 1, 2,
 78 |     2, 3, 0
 79 | ];
 80 | 
 81 | glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, $ebo);
 82 | glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof($elements) * 4, $elements, GL_STATIC_DRAW);
 83 | 
 84 | // Create and compile the vertex shader
 85 | $vertexShader = glCreateShader(GL_VERTEX_SHADER);
 86 | glShaderSource($vertexShader, 1, $vertexSource, NULL);
 87 | glCompileShader($vertexShader);
 88 | 
 89 | // Create and compile the fragment shader
 90 | $fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
 91 | glShaderSource($fragmentShader, 1, $fragmentSource, NULL);
 92 | glCompileShader($fragmentShader);
 93 | 
 94 | // Link the vertex and fragment shader into a shader program
 95 | $shaderProgram = glCreateProgram();
 96 | glAttachShader($shaderProgram, $vertexShader);
 97 | glAttachShader($shaderProgram, $fragmentShader);
 98 | glBindFragDataLocation($shaderProgram, 0, "outColor");
 99 | glLinkProgram($shaderProgram);
100 | glUseProgram($shaderProgram);
101 | 
102 | // Specify the layout of the vertex data
103 | $posAttrib = glGetAttribLocation($shaderProgram, "position");
104 | glEnableVertexAttribArray($posAttrib);
105 | glVertexAttribPointer($posAttrib, 2, GL_FLOAT, GL_FALSE, 7 * 4, 0);
106 | 
107 | 
108 | $texAttrib = glGetAttribLocation($shaderProgram, "texcoord");
109 | glEnableVertexAttribArray($texAttrib);
110 | glVertexAttribPointer($texAttrib, 2, GL_FLOAT, GL_FALSE, 7 * 4, (5 * 4));
111 | 
112 | $imageLoader = new ImageLoader;
113 | 
114 | // Load textures
115 | $textures = [];
116 | glGenTextures(2, $textures);
117 | 
118 | glActiveTexture(GL_TEXTURE0);
119 | glBindTexture(GL_TEXTURE_2D, $textures[0]);
120 | $image = $imageLoader->load("textures/sample.png", $width, $height);
121 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, $width, $height, 0, GL_RGBA, GL_UNSIGNED_BYTE, $image);
122 | glUniform1i(glGetUniformLocation($shaderProgram, "texKitten"), 0);
123 | 
124 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
125 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
126 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
127 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
128 | 
129 | 
130 | glActiveTexture(GL_TEXTURE1);
131 | glBindTexture(GL_TEXTURE_2D, $textures[1]);
132 | $image = $imageLoader->load("textures/sample2.png", $width, $height);
133 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, $width, $height, 0, GL_RGBA, GL_UNSIGNED_BYTE, $image);
134 | glUniform1i(glGetUniformLocation($shaderProgram, "texPuppy"), 1);
135 | 
136 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
137 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
138 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
139 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
140 | 
141 | $a = 0.0;
142 | 
143 | $start = microtime(true);
144 | 
145 | $event = new SDL_Event;
146 | 
147 | $quit = false;
148 | while (!$quit) {
149 |     // Clear the screen to black
150 |     glClearColor(0.0, 0.0, 0.0, 1.0);
151 |     glClear(GL_COLOR_BUFFER_BIT);
152 | 
153 |     $a += 0.05;
154 | 
155 |     // Draw a rectangle from the 2 triangles using 6 indices
156 |     glUniform1f(glGetUniformLocation($shaderProgram, "time"), $a);
157 |     glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, null);
158 | 
159 |     // Swap buffers
160 |     SDL_GL_SwapWindow($window);
161 |     while (SDL_PollEvent($event)) {
162 |         if ($event->type == SDL_KEYDOWN) $quit = true;
163 |     }
164 | 
165 |     SDL_Delay(10);
166 | }
167 | 
168 | 
169 | glDeleteTextures(2, $textures);
170 | 
171 | glDeleteProgram($shaderProgram);
172 | glDeleteShader($fragmentShader);
173 | glDeleteShader($vertexShader);
174 | 
175 | glDeleteBuffers(1, $ebo);
176 | glDeleteBuffers(1, $vbo);
177 | 
178 | glDeleteVertexArrays(1, $vao);
179 | 


--------------------------------------------------------------------------------
/examples/rotate.php:
--------------------------------------------------------------------------------
  1 | <?php
  2 | //http://learnopengl.com/code_viewer.php?code=getting-started/transformations
  3 | require 'bootstrap.php';
  4 | require 'vendor/autoload.php';
  5 | 
  6 | use Mammoth\Graphic\ImageLoader;
  7 | use \Mammoth\Graphic\Shader;
  8 | use Mammoth\Math\Matrix;
  9 | use Mammoth\Math\Transform;
 10 | use Mammoth\Math\Vector;
 11 | 
 12 | define('WIDTH', 800);
 13 | define('HEIGHT', 600);
 14 | 
 15 | SDL_Init(SDL_INIT_EVERYTHING);
 16 | 
 17 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
 18 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
 19 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
 20 | 
 21 | $window = SDL_CreateWindow("3.2", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,                
 22 |                 640, 480, SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN);                                                                                               
 23 | 
 24 | $context = SDL_GL_CreateContext($window);    
 25 | 
 26 | // Define the viewport dimensions
 27 | glViewport(0, 0, WIDTH, HEIGHT);
 28 | 
 29 | // Build and compile our shader program
 30 | $shaderProgram = new Shader\Program;
 31 | $shaderProgram->add(new Shader\Vertex("shaders/transformations.vert"));
 32 | $shaderProgram->add(new Shader\Fragment("shaders/transformations.frag"));
 33 | $shaderProgram->compile();
 34 | $shaderProgram->link();
 35 | $shaderProgram->use();
 36 | 
 37 | // Set up vertex data (and buffer(s)) and attribute pointers
 38 | $vertices = [
 39 |     // Positions          // Colors           // Texture Coords
 40 |      0.5,  0.5, 0.0,   1.0, 0.0, 0.0,   1.0, 1.0, // Top Right
 41 |      0.5, -0.5, 0.0,   0.0, 1.0, 0.0,   1.0, 0.0, // Bottom Right
 42 |     -0.5, -0.5, 0.0,   0.0, 0.0, 1.0,   0.0, 0.0, // Bottom Left
 43 |     -0.5,  0.5, 0.0,   1.0, 1.0, 0.0,   0.0, 1.0  // Top Left 
 44 | ];
 45 | $indices = [  // Note that we start from 0!
 46 |     0, 1, 3, // First Triangle
 47 |     1, 2, 3  // Second Triangle
 48 | ];
 49 | glGenVertexArrays(1, $VAOS); $VAO=$VAOS[0];
 50 | glGenBuffers(1, $VBOS); $VBO=$VBOS[0];
 51 | glGenBuffers(1, $EBOS); $EBO=$EBOS[0];
 52 | 
 53 | glBindVertexArray($VAO);
 54 | 
 55 | glBindBuffer(GL_ARRAY_BUFFER, $VBO);
 56 | glBufferData(GL_ARRAY_BUFFER, sizeof($vertices) * 4, $vertices, GL_STATIC_DRAW);
 57 | 
 58 | glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, $EBO);
 59 | glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof($indices) * 4, $indices, GL_STATIC_DRAW);
 60 | 
 61 | // Position attribute
 62 | glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 8 * 4, 0);
 63 | glEnableVertexAttribArray(0);
 64 | // Color attribute
 65 | glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 8 * 4, (3 * 4));
 66 | glEnableVertexAttribArray(1);
 67 | // TexCoord attribute
 68 | glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 8 * 4, (6 * 4));
 69 | glEnableVertexAttribArray(2);
 70 | 
 71 | glBindVertexArray(0); // Unbind VAO
 72 | 
 73 | $imageLoader = new ImageLoader;
 74 | 
 75 | // Load and create a texture 
 76 | // ====================
 77 | // Texture 1
 78 | // ====================
 79 | $textures =[];
 80 | glGenTextures(1, $textures); $texture1=$textures[0];
 81 | glBindTexture(GL_TEXTURE_2D, $texture1); // All upcoming GL_TEXTURE_2D operations now have effect on our texture object
 82 | // Set our texture parameters
 83 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);   // Set texture wrapping to GL_REPEAT
 84 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
 85 | // Set texture filtering
 86 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 87 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 88 | // Load, create texture and generate mipmaps
 89 | $image = $imageLoader->load("textures/container.jpg", $width, $height);
 90 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, $width, $height, 0, GL_RGBA, GL_UNSIGNED_BYTE, $image);
 91 | glGenerateMipmap(GL_TEXTURE_2D);
 92 | glBindTexture(GL_TEXTURE_2D, 0); // Unbind texture when done, so we won't accidentily mess up our texture.
 93 | // ===================
 94 | // Texture 2
 95 | // ===================
 96 | $textures2 = [];
 97 | glGenTextures(1, $textures2); $texture2=$textures2[0];
 98 | glBindTexture(GL_TEXTURE_2D, $texture2);
 99 | // Set our texture parameters
100 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
101 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
102 | // Set texture filtering
103 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
104 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
105 | // Load, create texture and generate mipmaps
106 | $image = $imageLoader->load("textures/awesomeface.png", $width, $height);
107 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, $width, $height, 0, GL_BGRA, GL_UNSIGNED_BYTE, $image);
108 | glGenerateMipmap(GL_TEXTURE_2D);
109 | glBindTexture(GL_TEXTURE_2D, 0);
110 | 
111 | 	$event = new SDL_Event;
112 | while(true) {
113 |     // Check if any events have been activiated (key pressed, mouse moved etc.) and call corresponding response functions
114 | 
115 |     // Render
116 |     // Clear the colorbuffer
117 |     glClearColor(0.2, 0.3, 0.3, 1.0);
118 |     glClear(GL_COLOR_BUFFER_BIT);
119 | 
120 |     // Bind Textures using texture units
121 |     glActiveTexture(GL_TEXTURE0);
122 |     glBindTexture(GL_TEXTURE_2D, $texture1);
123 |     glUniform1i(glGetUniformLocation($shaderProgram->getId(), "ourTexture1"), 0);
124 |     glActiveTexture(GL_TEXTURE1);
125 |     glBindTexture(GL_TEXTURE_2D, $texture2);
126 |     glUniform1i(glGetUniformLocation($shaderProgram->getId(), "ourTexture2"), 1);
127 | 
128 |     // Activate shader
129 |     $shaderProgram->Use();       
130 | 
131 |     // Create transformations
132 |     static $a = 0;
133 |     $a -= 0.01;
134 |     $transform = new Matrix();
135 |     $transform = Transform::translate($transform, new Vector(0.5, -0.5, 0.0));
136 |     $transform = Transform::rotate($transform, ($a * 50.0), new Vector(0.0, 0.0, 1.0));
137 | 
138 |     // Get matrix's uniform location and set matrix
139 |     $transformLoc = glGetUniformLocation($shaderProgram->getId(), "transform");
140 |     glUniformMatrix4fv($transformLoc, 1, GL_FALSE, $transform->toRowVector());
141 |     
142 |     // Draw container
143 |     glBindVertexArray($VAO);
144 |     glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, null);
145 |     glBindVertexArray(0);
146 | 
147 |     // Swap the screen buffers
148 |     SDL_GL_SwapWindow($window);
149 | 	SDL_PollEvent($event);
150 | 	if($event->type == SDL_KEYDOWN) break;
151 | 
152 | 	SDL_Delay(5);
153 | }
154 | // Properly de-allocate all resources once they've outlived their purpose
155 | glDeleteVertexArrays(1, $VAO);
156 | glDeleteBuffers(1, $VBO);
157 | glDeleteBuffers(1, $EBO);
158 | 
159 | 


--------------------------------------------------------------------------------
/examples/animation.php:
--------------------------------------------------------------------------------
  1 | <?php
  2 | 
  3 | // https://open.gl/transformations
  4 | 
  5 | require 'bootstrap.php';
  6 | 
  7 | require 'vendor/autoload.php';
  8 | use \glm\vec3;
  9 | use \glm\mat4;
 10 | use Mammoth\Graphic\ImageLoader;
 11 | use Mammoth\Math\Angle;
 12 | use Mammoth\Math\Matrix;
 13 | use Mammoth\Math\Transform;
 14 | use Mammoth\Math\Vector;
 15 | 
 16 | use function Mammoth\Math\Vector;
 17 | 
 18 | // Shader sources
 19 | $vertexSource = <<<GLSL
 20 |     #version 150 core
 21 |     in vec2 position;
 22 |     in vec3 color;
 23 |     in vec2 texcoord;
 24 |     out vec3 Color;
 25 |     out vec2 Texcoord;
 26 |     uniform mat4 model;
 27 |     uniform mat4 view;
 28 |     uniform mat4 proj;
 29 |     void main()
 30 |     {
 31 |         Color = color;
 32 |         Texcoord = texcoord;
 33 |         gl_Position = proj * view * model * vec4(position, 0.0, 1.0);
 34 |     }
 35 | GLSL;
 36 | 
 37 | $fragmentSource = <<<GLSL
 38 |     #version 150 core
 39 |     in vec3 Color;
 40 |     in vec2 Texcoord;
 41 |     out vec4 outColor;
 42 |     uniform sampler2D texKitten;
 43 |     uniform sampler2D texPuppy;
 44 |     void main()
 45 |     {
 46 |         outColor = mix(texture(texKitten, Texcoord), texture(texPuppy, Texcoord), 0.5);
 47 |     }
 48 | GLSL;
 49 | 
 50 |     $t_start = microtime(true);
 51 | 
 52 | SDL_Init(SDL_INIT_EVERYTHING);
 53 | 
 54 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
 55 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
 56 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
 57 | 
 58 | $window = SDL_CreateWindow("Shader animation", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN);
 59 | SDL_GL_CreateContext($window);
 60 | 
 61 | // Create Vertex Array Object
 62 | glGenVertexArrays(1, $vaos);
 63 | $vao = $vaos[0];
 64 | glBindVertexArray($vao);
 65 | 
 66 | // Create a Vertex Buffer Object and copy the vertex data to it
 67 | glGenBuffers(1, $vbos);
 68 | $vbo = $vbos[0];
 69 | 
 70 | $vertices = [
 71 | //  Position      Color             Texcoords
 72 |     -0.5,  0.5, 1.0, 0.0, 0.0, 0.0, 0.0, // Top-left
 73 |      0.5,  0.5, 0.0, 1.0, 0.0, 1.0, 0.0, // Top-right
 74 |      0.5, -0.5, 0.0, 0.0, 1.0, 1.0, 1.0, // Bottom-right
 75 |     -0.5, -0.5, 1.0, 1.0, 1.0, 0.0, 1.0  // Bottom-left
 76 | ];
 77 | 
 78 | glBindBuffer(GL_ARRAY_BUFFER, $vbo);
 79 | glBufferData(GL_ARRAY_BUFFER, sizeof($vertices) * 4, $vertices, GL_STATIC_DRAW);
 80 | 
 81 | // Create an element array
 82 | glGenBuffers(1, $ebos);
 83 | $ebo = $ebos[0];
 84 | 
 85 | $elements = [
 86 |     0, 1, 2,
 87 |     2, 3, 0
 88 | ];
 89 | 
 90 | glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, $ebo);
 91 | glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof($elements) * 4, $elements, GL_STATIC_DRAW);
 92 | 
 93 | // Create and compile the vertex shader
 94 | $vertexShader = glCreateShader(GL_VERTEX_SHADER);
 95 | glShaderSource($vertexShader, 1, $vertexSource, NULL);
 96 | glCompileShader($vertexShader);
 97 | 
 98 | // Create and compile the fragment shader
 99 | $fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
100 | glShaderSource($fragmentShader, 1, $fragmentSource, NULL);
101 | glCompileShader($fragmentShader);
102 | 
103 | // Link the vertex and fragment shader into a shader program
104 | $shaderProgram = glCreateProgram();
105 | glAttachShader($shaderProgram, $vertexShader);
106 | glAttachShader($shaderProgram, $fragmentShader);
107 | glBindFragDataLocation($shaderProgram, 0, "outColor");
108 | glLinkProgram($shaderProgram);
109 | glUseProgram($shaderProgram);
110 | 
111 | // Specify the layout of the vertex data
112 | $posAttrib = glGetAttribLocation($shaderProgram, "position");
113 | glEnableVertexAttribArray($posAttrib);
114 | glVertexAttribPointer($posAttrib, 2, GL_FLOAT, GL_FALSE, 7 * 4, 0);
115 | 
116 | $colAttrib = glGetAttribLocation($shaderProgram, "color");
117 | glEnableVertexAttribArray($colAttrib);
118 | glVertexAttribPointer($colAttrib, 3, GL_FLOAT, GL_FALSE, 7 * 4, (2 * 4));
119 | 
120 | $texAttrib = glGetAttribLocation($shaderProgram, "texcoord");
121 | glEnableVertexAttribArray($texAttrib);
122 | glVertexAttribPointer($texAttrib, 2, GL_FLOAT, GL_FALSE, 7 * 4, (5 * 4));
123 | 
124 | $imageLoader = new ImageLoader;
125 | 
126 | // Load textures
127 | $textures = [];
128 | glGenTextures(2, $textures);
129 | 
130 | glActiveTexture(GL_TEXTURE0);
131 | glBindTexture(GL_TEXTURE_2D, $textures[0]);
132 | $image = $imageLoader->load("textures/sample.png", $width, $height);
133 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, $width, $height, 0, GL_RGBA, GL_UNSIGNED_BYTE, $image);
134 | glUniform1i(glGetUniformLocation($shaderProgram, "texKitten"), 0);
135 | 
136 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
137 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
138 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
139 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
140 | 
141 | glActiveTexture(GL_TEXTURE1);
142 | glBindTexture(GL_TEXTURE_2D, $textures[1]);
143 | $image = $imageLoader->load("textures/sample2.png", $width, $height);
144 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, $width, $height, 0, GL_RGBA, GL_UNSIGNED_BYTE, $image);
145 | glUniform1i(glGetUniformLocation($shaderProgram, "texPuppy"), 1);
146 | 
147 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
148 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
149 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
150 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
151 | 
152 | $uniModel = glGetUniformLocation($shaderProgram, "model");
153 | 
154 | // Set up projection
155 | $view = Transform::lookAt(
156 |     new Vector(1.2, 1.2, 1.2),
157 |     new Vector(0.0, 0.0, 0.0),
158 |     new Vector(0.0, 0.0, 1.0)
159 | );
160 | $uniView = glGetUniformLocation($shaderProgram, "view");
161 | glUniformMatrix4fv($uniView, 1, GL_FALSE, $view->toRowVector());
162 | 
163 | $proj = Transform::perspective((45.0), 800.0 / 600.0, 1.0, 10.0);
164 | $uniProj = glGetUniformLocation($shaderProgram, "proj");
165 | glUniformMatrix4fv($uniProj, 1, GL_FALSE, $proj->toRowVector());
166 | 
167 | $event = new SDL_Event;
168 | 
169 | while(true) {
170 |     // Clear the screen to black
171 |     glClearColor(0.1, 0.3, 0.3, 1.0);
172 |     glClear(GL_COLOR_BUFFER_BIT);
173 |     
174 |     // Calculate transformation
175 |     $t_now = microtime(true); 
176 |     $time = $t_now - $t_start;
177 |     
178 |     $model = new Matrix();
179 |     $model = Transform::rotate(
180 |         $model,
181 |         $time * Angle::toRadians(180.0),
182 |         new Vector(0.0, 0.0, 1.0)
183 |     );
184 |     glUniformMatrix4fv($uniModel, 1, GL_FALSE, $model->toRowVector());
185 | 
186 |     // Draw a rectangle from the 2 triangles using 6 indices
187 |     glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, null);
188 | 
189 |     // Swap buffers
190 |     SDL_GL_SwapWindow($window);
191 | 
192 | 	SDL_PollEvent($event);
193 | 	if($event->type == SDL_KEYDOWN) break;
194 | 	
195 | 	SDL_Delay(20);
196 | }
197 | 
198 | glDeleteTextures(2, $textures);
199 | 
200 | glDeleteProgram($shaderProgram);
201 | glDeleteShader($fragmentShader);
202 | glDeleteShader($vertexShader);
203 | 
204 | glDeleteBuffers(1, $ebo);
205 | glDeleteBuffers(1, $vbo);
206 | 
207 | glDeleteVertexArrays(1, $vao);
208 | 
209 | 


--------------------------------------------------------------------------------
/php_convert.c:
--------------------------------------------------------------------------------
  1 | /*
  2 |   +----------------------------------------------------------------------+
  3 |   | PHP Version 7                                                        |
  4 |   +----------------------------------------------------------------------+
  5 |   | Copyright (c) 1997-2016 The PHP Group                                |
  6 |   +----------------------------------------------------------------------+
  7 |   | This source file is subject to version 3.01 of the PHP license,      |
  8 |   | that is bundled with this package in the file LICENSE, and is        |
  9 |   | available through the world-wide-web at the following url:           |
 10 |   | http://www.php.net/license/3_01.txt                                  |
 11 |   | If you did not receive a copy of the PHP license and are unable to   |
 12 |   | obtain it through the world-wide-web, please send a note to          |
 13 |   | license@php.net so we can mail you a copy immediately.               |
 14 |   +----------------------------------------------------------------------+
 15 |   | Author: Santiago Lizardo <santiagolizardo@php.net>                   |
 16 |   +----------------------------------------------------------------------+
 17 |  */
 18 | 
 19 | 
 20 | #ifdef PHP_WIN32
 21 | #include <windows.h>
 22 | #endif
 23 | 
 24 | #include "php.h"
 25 | #include "php_convert.h"
 26 | 
 27 | void c_array_to_php_array(void *c_array, int num, zval *php_array, int type) {
 28 |     zval val;
 29 |     int i;
 30 |     
 31 |     for (i = 0; i < num; i++) {
 32 |         switch (type) {
 33 |             case C_INT_TO_PHP_LONG:
 34 |                 ZVAL_LONG(&val, (int) ((int*) c_array)[i]);
 35 |                 break;
 36 |             case C_UINT_TO_PHP_LONG:
 37 |                 ZVAL_LONG(&val, (unsigned int) ((unsigned int*) c_array)[i]);
 38 |                 break;
 39 |             case C_LONG_TO_PHP_LONG:
 40 |                 ZVAL_LONG(&val, ((long*) c_array)[i]);
 41 |                 break;
 42 |             case C_FLOAT_TO_PHP_DOUBLE:
 43 |                 ZVAL_DOUBLE(&val, (float) ((float*) c_array)[i]);
 44 |                 break;
 45 |             case C_DOUBLE_TO_PHP_DOUBLE:
 46 |                 ZVAL_DOUBLE(&val, (double) ((double*) c_array)[i]);
 47 |                 break;
 48 |             case C_BOOLEAN_TO_PHP_BOOLEAN:
 49 |                 ZVAL_BOOL(&val, (unsigned char) ((unsigned char*) c_array)[i]);
 50 |                 break;
 51 |             case C_CHAR_TO_PHP_LONG:
 52 |                 ZVAL_LONG(&val, (char) ((char*) c_array)[i]);
 53 |                 break;
 54 |             case C_USHORT_TO_PHP_LONG:
 55 |                 ZVAL_LONG(&val, (unsigned short) ((unsigned short*) c_array)[i]);
 56 |                 break;
 57 |         }
 58 |         zend_hash_next_index_insert(Z_ARRVAL_P(php_array), &val);
 59 |     }
 60 | }
 61 | 
 62 | void *php_array_to_c_array(zval *param, int type, int size, int *array_size) {
 63 |     zend_array *param_ht = HASH_OF(param);
 64 |     zval *cur = NULL;
 65 |     void *params;
 66 |     int i, tmp_size = zend_hash_num_elements(param_ht);
 67 | 
 68 |     params = (void *) emalloc(size * tmp_size);
 69 | 
 70 |     i = 0;
 71 | 
 72 |     ZEND_HASH_FOREACH_VAL(param_ht, cur) {
 73 |         if (Z_TYPE_P(cur) == IS_ARRAY) {
 74 |             int new_array_size;
 75 |             void *array = php_array_to_c_array(cur, type, size, &new_array_size);
 76 |             params = erealloc(params, (tmp_size + new_array_size) * size);
 77 |             memcpy(&((char*) params)[i * size], array, new_array_size * size);
 78 |             i += (new_array_size - 1);
 79 |             efree(array);
 80 |         } else {
 81 |             switch (type) {
 82 |                 case TO_C_FLOAT:
 83 |                     convert_to_double(cur);
 84 |                     ((float*) params)[i] = (float) Z_DVAL_P(cur);
 85 |                     break;
 86 |                 case TO_C_DOUBLE:
 87 |                     convert_to_double(cur);
 88 |                     ((double*) params)[i] = Z_DVAL_P(cur);
 89 |                     break;
 90 |                 case TO_C_INT:
 91 |                     convert_to_long(cur);
 92 |                     ((int*) params)[i] = (int) Z_LVAL_P(cur);
 93 |                     break;
 94 |                 case TO_C_LONG:
 95 |                     convert_to_long(cur);
 96 |                     ((long*) params)[i] = Z_LVAL_P(cur);
 97 |                     break;
 98 |                 case TO_C_UCHAR:
 99 |                     convert_to_long(cur);
100 |                     ((unsigned char*) params)[i] = (unsigned char) Z_LVAL_P(cur);
101 |                     break;
102 |                 case TO_C_SCHAR:
103 |                     convert_to_long(cur);
104 |                     ((signed char*) params)[i] = (signed char) Z_LVAL_P(cur);
105 |                     break;
106 |                 case TO_C_USHORT:
107 |                     convert_to_long(cur);
108 |                     ((unsigned short*) params)[i] = (unsigned short) Z_LVAL_P(cur);
109 |                     break;
110 |                 case TO_C_SHORT:
111 |                     convert_to_long(cur);
112 |                     ((short*) params)[i] = (short) Z_LVAL_P(cur);
113 |                     break;
114 |                 case TO_C_UINT:
115 |                     convert_to_long(cur);
116 |                     ((unsigned int*) params)[i] = (unsigned int) Z_LVAL_P(cur);
117 |                     break;
118 |                 case TO_C_STRING:
119 |                     convert_to_string(cur);
120 |                     ((char **) params)[i] = estrdup(Z_STRVAL_P(cur));
121 |             }
122 |         }
123 |         i++;
124 |     }
125 |     ZEND_HASH_FOREACH_END();
126 |     if (array_size != NULL)
127 |         *array_size = i;
128 |     return params;
129 | }
130 | 
131 | int gl_pixel_size(GLenum format) {
132 |     switch (format) {
133 | //        case GL_COLOR_INDEX:
134 |         case GL_RED:
135 |         case GL_GREEN:
136 |         case GL_BLUE:
137 |         case GL_ALPHA:
138 |         case GL_STENCIL_INDEX:
139 |         case GL_DEPTH_COMPONENT:
140 | //        case GL_LUMINANCE:
141 |             return 1;
142 | 
143 | //        case GL_LUMINANCE_ALPHA:
144 |   //:          return 2;
145 | 
146 |         case GL_RGB:
147 | #ifdef GL_BGR_EXT
148 |         case GL_BGR_EXT:
149 | #endif
150 |             return 3;
151 | 
152 |         case GL_RGBA:
153 | #ifdef GL_BGRA_EXT
154 |         case GL_BGRA_EXT:
155 | #endif
156 | #ifdef GL_ABGR_EXT
157 |         case GL_ABGR_EXT:
158 | #endif
159 |             return 4;
160 |         case 1:
161 |         case 2:
162 |         case 3:
163 |         case 4:
164 |             return format;
165 |         default:
166 |             return -1;
167 |     }
168 | }
169 | 
170 | int gl_type_size(GLenum type) {
171 |     switch (type) {
172 |         case GL_BYTE:
173 |         case GL_UNSIGNED_BYTE:
174 |             return sizeof (GLbyte);
175 | 
176 |         case GL_SHORT:
177 |         case GL_UNSIGNED_SHORT:
178 |             return sizeof (GLshort);
179 | 
180 |         case GL_INT:
181 |         case GL_UNSIGNED_INT:
182 |             return sizeof (GLint);
183 | 
184 |         case GL_FLOAT:
185 |             return sizeof (GLfloat);
186 | 
187 | //        case GL_BITMAP:
188 |   //          return sizeof (GLbitfield);
189 | 
190 |         default:
191 |             return 1;
192 |     }
193 | }
194 | 


--------------------------------------------------------------------------------
/examples/obj-model.php:
--------------------------------------------------------------------------------
  1 | <?php
  2 | 
  3 | require 'bootstrap.php';
  4 | 
  5 | require 'vendor/autoload.php';
  6 | 
  7 | use \Mammoth\Graphic\Shader;
  8 | use Mammoth\Graphic\WavefrontObjLoader;
  9 | use Mammoth\Math\Matrix;
 10 | use Mammoth\Math\Transform;
 11 | use Mammoth\Math\Vector;
 12 | 
 13 | ini_set('memory_limit', '3096M');
 14 | 
 15 | SDL_Init(SDL_INIT_EVERYTHING);
 16 | 
 17 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
 18 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
 19 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
 20 | 
 21 | $window = SDL_CreateWindow("Fixed pipeline example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN);
 22 | SDL_GL_CreateContext($window);
 23 | 
 24 | $line = false;
 25 | 
 26 | $modelName = $argc === 2 ? $argv[1] : 'models/suzanne.obj';
 27 | 
 28 | $objLoader = new WavefrontObjLoader;
 29 | $obj = $objLoader->load($modelName);
 30 | echo $obj, PHP_EOL;
 31 | 
 32 | $verticesObjects = $obj->getVertices();
 33 | $vertices = [];
 34 | foreach($verticesObjects as $vertexObject) {
 35 |     $vertices[] = $vertexObject->x;
 36 |     $vertices[] = $vertexObject->y;
 37 |     $vertices[] = $vertexObject->z;
 38 | }
 39 | 
 40 | $indices = $obj->getVertexFaces(); 
 41 | $indices = array_map(function($index) { return $index - 1; }, $indices);
 42 | 
 43 | $normalObjects = $obj->getVertexNormals();
 44 | $normals = [];
 45 | foreach($normalObjects as $index => $normalObject) {
 46 |     if(!($normalObject instanceof Vector)) {
 47 |         echo "INDEX: $index\n";
 48 |         var_dump($normalObject);
 49 |     }
 50 |      else {
 51 |         $normals[] = $normalObject->x;
 52 |         $normals[] = $normalObject->y;
 53 |         $normals[] = $normalObject->z;
 54 |     }
 55 | }
 56 | 
 57 | $vertexSource = file_get_contents('shaders/basic_lighting.vs');
 58 | $fragmentSource = file_get_contents('shaders/basic_lighting.frag');
 59 | 
 60 | $vertexShader = glCreateShader(GL_VERTEX_SHADER);
 61 | glShaderSource($vertexShader, 1, $vertexSource, NULL);
 62 | glCompileShader($vertexShader);
 63 | 
 64 | $fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
 65 | glShaderSource($fragmentShader, 1, $fragmentSource, NULL);
 66 | glCompileShader($fragmentShader);
 67 | 
 68 | $shaderProgram = glCreateProgram();
 69 | glAttachShader($shaderProgram, $vertexShader);
 70 | glAttachShader($shaderProgram, $fragmentShader);
 71 | glLinkProgram($shaderProgram);
 72 | 
 73 | glUseProgram($shaderProgram);
 74 | $viewLoc = glGetUniformLocation($shaderProgram, "view");
 75 | $modelLoc = glGetUniformLocation($shaderProgram, "model");
 76 | $projLoc = glGetUniformLocation($shaderProgram, "projection");
 77 | 
 78 | $position = new Vector(0, 0, 10);
 79 | $lampShader = null;
 80 | $lightVAO = null;
 81 | $lightPos = null;
 82 | 
 83 | $lightPos = new Vector(0, 10, 10.0);
 84 | $objectColorLoc = glGetUniformLocation($shaderProgram, "objectColor");
 85 | $lightColorLoc  = glGetUniformLocation($shaderProgram, "lightColor");
 86 | $lightPosLoc    = glGetUniformLocation($shaderProgram, "lightPos");
 87 | $viewPosLoc     = glGetUniformLocation($shaderProgram, "viewPos");
 88 | glUniform3f($objectColorLoc, 1.0, 0.5, 0.31);
 89 | glUniform3f($lightColorLoc,  1.0, 1.0, 1.0);
 90 | glUniform3f($lightPosLoc, $lightPos->x, $lightPos->y, $lightPos->z);
 91 | glUniform3f($viewPosLoc, $position->x, $position->y, $position->z);
 92 | 
 93 | $view = Transform::lookAt($position, new Vector(0, 0, 0), new Vector(0,1,0));
 94 | $proj = Transform::perspective(45, (float)800/(float)600, 0.1, 100);
 95 | 
 96 | $model = new Matrix();
 97 | //$model = \glm\rotate($model, 40, new Vector(1, 0, 0));
 98 | glUniformMatrix4fv($modelLoc, 1, GL_FALSE, $model->toRowVector());
 99 | glUniformMatrix4fv($viewLoc, 1, GL_FALSE, $view->toRowVector());
100 | glUniformMatrix4fv($projLoc, 1, GL_FALSE, $proj->toRowVector());
101 | 
102 | glGenVertexArrays(1, $vaos);
103 | $vao = $vaos[0];
104 | 
105 | glBindVertexArray($vao);
106 | 
107 | glGenBuffers(1, $vbos); $vbo = $vbos[0];
108 | glBindBuffer(GL_ARRAY_BUFFER, $vbo);
109 | glBufferData(GL_ARRAY_BUFFER, count($vertices) * 4, $vertices, GL_STATIC_DRAW);
110 | 
111 | glGenBuffers(1, $vbo_normals); $vbo_normal = $vbo_normals[0];
112 | glBindBuffer(GL_ARRAY_BUFFER, $vbo_normal);
113 | glBufferData(GL_ARRAY_BUFFER, count($normals) * 4, $normals, GL_STATIC_DRAW);
114 | 
115 | glGenBuffers(1, $ebos); $ebo = $ebos[0];
116 | glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, $ebo);
117 | glBufferData(GL_ELEMENT_ARRAY_BUFFER, count($indices) * 4, $indices, GL_STATIC_DRAW);
118 | 
119 | // Vertex attribute
120 | glEnableVertexAttribArray(0);
121 | glBindBuffer(GL_ARRAY_BUFFER, $vbo);
122 | glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, 0);
123 | 
124 | // Normal attribute
125 | glEnableVertexAttribArray(1);
126 | glBindBuffer(GL_ARRAY_BUFFER, $vbo_normal);
127 | glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0, 0);
128 | 
129 | glBindVertexArray(0);
130 | 
131 | // Then, we set the light's VAO (VBO stays the same. After all, the vertices are the same for the light object (also a 3D cube))
132 | 
133 | $lampShader = new Shader\Program();
134 | $lampShader->add(new Shader\Vertex('shaders/lamp.vs'));
135 | $lampShader->add(new Shader\Fragment('shaders/lamp.frag'));
136 | $lampShader->compile();
137 | $lampShader->link();
138 | 
139 | 
140 | glGenVertexArrays(1, $lightVAOS); $lightVAO = $lightVAOS[0];
141 | glBindVertexArray($lightVAO);
142 | // We only need to bind to the VBO (to link it with glVertexAttribPointer), no need to fill it; the VBO's data already contains all we need.
143 | $lightVertices2 = [ 
144 |   (new Vector(-0.1, -0.1, -0.1, 0.0)),
145 |   (new Vector( 0.1, -0.1, -0.1, 0.0)),
146 |   (new Vector( 0.1,  0.1, -0.1, 0.0)),
147 |   (new Vector(-0.1,  0.1, -0.1, 0.0)),
148 |   (new Vector(-0.1, -0.1,  0.1, 0.0)),
149 |   (new Vector( 0.1, -0.1,  0.1, 0.0)),
150 |   (new Vector( 0.1,  0.1,  0.1, 0.0)),
151 |   (new Vector(-0.1,  0.1,  0.1, 0.0)),
152 | ];
153 | $lightVertices = [];
154 | foreach($lightVertices2 as $l) {
155 |     $lightVertices[] = $l->x;
156 |     $lightVertices[] = $l->y;
157 |     $lightVertices[] = $l->z;
158 | }
159 | 
160 | glGenBuffers(1, $vbo_lights); $vbo_light = $vbo_lights[0];
161 | glBindBuffer(GL_ARRAY_BUFFER, $vbo_light);
162 | glBufferData(GL_ARRAY_BUFFER, count($lightVertices) * 4, $lightVertices, GL_STATIC_DRAW);
163 | // Set the vertex attributes (only position data for the lamp))
164 | glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6 * 4, 0); // Note that we skip over the normal vectors
165 | glEnableVertexAttribArray(0);
166 | glBindVertexArray(0);
167 | glPolygonMode(GL_FRONT_AND_BACK, $line ? GL_LINE : GL_FILL);
168 | 
169 | $event = new SDL_Event;
170 | while(true) {
171 |     glClearColor(.2, .3, .3, 1);
172 |     glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
173 | 
174 |     glUseProgram($shaderProgram);
175 | 
176 |     glBindVertexArray($vao);
177 |         $numFaces = count($indices);
178 |         glDrawElements(GL_TRIANGLES, $numFaces, GL_UNSIGNED_INT, null);
179 |     glBindVertexArray(0);
180 | 
181 |         $lampShader->Use();
182 |         // Get location objects for the matrices on the lamp shader (these could be different on a different shader)
183 |         $modelLoc = glGetUniformLocation($lampShader->getId(), "model");
184 |         $viewLoc  = glGetUniformLocation($lampShader->getId(), "view");
185 |         $projLoc  = glGetUniformLocation($lampShader->getId(), "projection");
186 |         // Set matrices
187 |         glUniformMatrix4fv($viewLoc, 1, GL_FALSE, $view->toRowVector());
188 |         glUniformMatrix4fv($projLoc, 1, GL_FALSE, $proj->toRowVector());
189 |         $model = new Matrix();
190 |         $model = Transform::translate($model, $lightPos);
191 |         glUniformMatrix4fv($modelLoc, 1, GL_FALSE, $model->toRowVector());
192 |     // Draw the light object (using light's vertex attributes)
193 |     glBindVertexArray($lightVAO);
194 |         glDrawArrays(GL_TRIANGLES, 0, 36); //8*4
195 |     glBindVertexArray(0);
196 | 	SDL_GL_SwapWindow($window);
197 | 	SDL_Delay(10);
198 | 	SDL_PollEvent($event);
199 | 	if($event->type == SDL_KEYDOWN) {
200 |         $line = !$line;
201 |         
202 |         glPolygonMode(GL_FRONT_AND_BACK, $line ? GL_LINE : GL_FILL);
203 | 	}
204 | }
205 | 
206 | glEnable(GL_BLEND);
207 | glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
208 | glEnable(GL_DEPTH_TEST);
209 | 
210 | 


--------------------------------------------------------------------------------
/examples/lit-model.php:
--------------------------------------------------------------------------------
  1 | <?php
  2 | 
  3 | require 'bootstrap.php';
  4 | require 'vendor/autoload.php';
  5 | 
  6 | use \Mammoth\Graphic\Camera;
  7 | use \Mammoth\Graphic\Shader;
  8 | use Mammoth\Math\Matrix;
  9 | use Mammoth\Math\Transform;
 10 | use Mammoth\Math\Vector;
 11 | 
 12 | // Window dimensions
 13 | define('WIDTH', 800);
 14 | define('HEIGHT', 600);
 15 | 
 16 | // Camera
 17 | $camera = new Camera(new Vector(0, 0, 3));
 18 | $lastX  =  WIDTH  / 2.0;
 19 | $lastY  =  HEIGHT / 2.0;
 20 | $keys = array_fill_keys(range('a', 'z'), false);
 21 | 
 22 | 
 23 | // Light attributes
 24 | $lightPos = new Vector(1.2, 1.0, 2.0);
 25 | 
 26 | // Deltatime
 27 | $deltaTime = 0.0;   // Time between current frame and last frame
 28 | $lastFrame = 0.0;   // Time of last frame
 29 | 
 30 | SDL_Init(SDL_INIT_EVERYTHING);
 31 | 
 32 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
 33 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
 34 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
 35 | 
 36 | $window = SDL_CreateWindow("Fixed pipeline example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN);
 37 | SDL_GL_CreateContext($window);
 38 | 
 39 | // Define the viewport dimensions
 40 | glViewport(0, 0, WIDTH, HEIGHT);
 41 | 
 42 | // OpenGL options
 43 | glEnable(GL_DEPTH_TEST);
 44 | 
 45 | $lightingShader = new Shader\Program;
 46 | $lightingShader->add(new Shader\Vertex("shaders/basic_lighting.vs"));
 47 | $lightingShader->add(new Shader\Fragment("shaders/basic_lighting.frag"));
 48 | $lightingShader->compile();
 49 | $lightingShader->link();
 50 | 
 51 | $lampShader = new shader\Program;
 52 | $lampShader->add(new Shader\Vertex("shaders/lamp.vs"));
 53 | $lampShader->add(new Shader\Fragment("shaders/lamp.frag"));
 54 | $lampShader->compile();
 55 | $lampShader->link();
 56 | 
 57 | $mouse_callback = function($xpos, $ypos)
 58 | {
 59 |     global $camera;
 60 |     $lastX = &$GLOBALS['lastX'];
 61 |     $lastY = &$GLOBALS['lastY'];
 62 |     static $firstMouse = true;
 63 |     if ($firstMouse)
 64 |     {
 65 |         $lastX = $xpos;
 66 |         $lastY = $ypos;
 67 |         $firstMouse = false;
 68 |     }
 69 | 
 70 |     $xoffset = $xpos - $lastX;
 71 |     $yoffset = $lastY - $ypos;  // Reversed since y-coordinates go from bottom to left
 72 | 
 73 |     $lastX = $xpos;
 74 |     $lastY = $ypos;
 75 | 
 76 |     $camera->ProcessMouseMovement($xoffset, $yoffset);
 77 | };
 78 | 
 79 | // Set up vertex data (and buffer(s)) and attribute pointers
 80 | $vertices = [
 81 |     -0.5, -0.5, -0.5,  0.0,  0.0, -1.0,
 82 |      0.5, -0.5, -0.5,  0.0,  0.0, -1.0,
 83 |      0.5,  0.5, -0.5,  0.0,  0.0, -1.0,
 84 |      0.5,  0.5, -0.5,  0.0,  0.0, -1.0,
 85 |     -0.5,  0.5, -0.5,  0.0,  0.0, -1.0,
 86 |     -0.5, -0.5, -0.5,  0.0,  0.0, -1.0,
 87 | 
 88 |     -0.5, -0.5,  0.5,  0.0,  0.0,  1.0,
 89 |      0.5, -0.5,  0.5,  0.0,  0.0,  1.0,
 90 |      0.5,  0.5,  0.5,  0.0,  0.0,  1.0,
 91 |      0.5,  0.5,  0.5,  0.0,  0.0,  1.0,
 92 |     -0.5,  0.5,  0.5,  0.0,  0.0,  1.0,
 93 |     -0.5, -0.5,  0.5,  0.0,  0.0,  1.0,
 94 | 
 95 |     -0.5,  0.5,  0.5, -1.0,  0.0,  0.0,
 96 |     -0.5,  0.5, -0.5, -1.0,  0.0,  0.0,
 97 |     -0.5, -0.5, -0.5, -1.0,  0.0,  0.0,
 98 |     -0.5, -0.5, -0.5, -1.0,  0.0,  0.0,
 99 |     -0.5, -0.5,  0.5, -1.0,  0.0,  0.0,
100 |     -0.5,  0.5,  0.5, -1.0,  0.0,  0.0,
101 | 
102 |      0.5,  0.5,  0.5,  1.0,  0.0,  0.0,
103 |      0.5,  0.5, -0.5,  1.0,  0.0,  0.0,
104 |      0.5, -0.5, -0.5,  1.0,  0.0,  0.0,
105 |      0.5, -0.5, -0.5,  1.0,  0.0,  0.0,
106 |      0.5, -0.5,  0.5,  1.0,  0.0,  0.0,
107 |      0.5,  0.5,  0.5,  1.0,  0.0,  0.0,
108 | 
109 |     -0.5, -0.5, -0.5,  0.0, -1.0,  0.0,
110 |      0.5, -0.5, -0.5,  0.0, -1.0,  0.0,
111 |      0.5, -0.5,  0.5,  0.0, -1.0,  0.0,
112 |      0.5, -0.5,  0.5,  0.0, -1.0,  0.0,
113 |     -0.5, -0.5,  0.5,  0.0, -1.0,  0.0,
114 |     -0.5, -0.5, -0.5,  0.0, -1.0,  0.0,
115 | 
116 |     -0.5,  0.5, -0.5,  0.0,  1.0,  0.0,
117 |      0.5,  0.5, -0.5,  0.0,  1.0,  0.0,
118 |      0.5,  0.5,  0.5,  0.0,  1.0,  0.0,
119 |      0.5,  0.5,  0.5,  0.0,  1.0,  0.0,
120 |     -0.5,  0.5,  0.5,  0.0,  1.0,  0.0,
121 |     -0.5,  0.5, -0.5,  0.0,  1.0,  0.0
122 | ];
123 | // First, set the container's VAO (and VBO)
124 | glGenVertexArrays(1, $containerVAOS); $containerVAO = $containerVAOS[0];
125 | glGenBuffers(1, $VBOS); $VBO = $VBOS[0];
126 | 
127 | glBindBuffer(GL_ARRAY_BUFFER, $VBO);
128 | glBufferData(GL_ARRAY_BUFFER, sizeof($vertices) * 4, $vertices, GL_STATIC_DRAW);
129 | 
130 | glBindVertexArray($containerVAO);
131 | // Position attribute
132 | glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6 * 4, 0);
133 | glEnableVertexAttribArray(0);
134 | // Normal attribute
135 | glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 6 * 4, (3 * 4));
136 | glEnableVertexAttribArray(1);
137 | glBindVertexArray(0);
138 | 
139 | // Then, we set the light's VAO (VBO stays the same. After all, the vertices are the same for the light object (also a 3D cube))
140 | glGenVertexArrays(1, $lightVAOS); $lightVAO = $lightVAOS[0];
141 | glBindVertexArray($lightVAO);
142 | // We only need to bind to the VBO (to link it with glVertexAttribPointer), no need to fill it; the VBO's data already contains all we need.
143 | glBindBuffer(GL_ARRAY_BUFFER, $VBO);
144 | // Set the vertex attributes (only position data for the lamp))
145 | glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6 * 4, 0); // Note that we skip over the normal vectors
146 | glEnableVertexAttribArray(0);
147 | glBindVertexArray(0);
148 | 
149 | $event = new SDL_Event;
150 | 
151 | while(true) {
152 |         // Calculate deltatime of current frame
153 |     $currentFrame = microtime(true);
154 |     $deltaTime = $currentFrame - $lastFrame;
155 |     $lastFrame = $currentFrame;
156 | 
157 |     // Check if any events have been activiated (key pressed, mouse moved etc.) and call corresponding response functions
158 |     do_movement();
159 | 
160 |     // Clear the colorbuffer
161 |     glClearColor(0.1, 0.1, 0.1, 1.0);
162 |     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
163 | 
164 |     // Use cooresponding shader when setting uniforms/drawing objects
165 |     $lightingShader->Use();
166 |     $objectColorLoc = glGetUniformLocation($lightingShader->getId(), "objectColor");
167 |     glUniform3f($objectColorLoc,  1.0, .5, 0.31);
168 |     $lightColorLoc  = glGetUniformLocation($lightingShader->getId(), "lightColor");
169 |     glUniform3f($lightColorLoc,  1.0, 1.0, 1.0);
170 |     $lightPosLoc    = glGetUniformLocation($lightingShader->getId(), "lightPos");
171 |     glUniform3f($lightPosLoc,    $lightPos->x, $lightPos->y, $lightPos->z);
172 |     $viewPosLoc     = glGetUniformLocation($lightingShader->getId(), "viewPos");
173 |     glUniform3f($viewPosLoc,     $camera->position->x, $camera->position->y, $camera->position->z);
174 | 
175 |     // Create camera transformations
176 |     $view = new Matrix();
177 |     $view = $camera->GetViewMatrix();
178 |     $projection = Transform::perspective($camera->zoom, floatval(WIDTH / HEIGHT), 0.1, 100.0);
179 |     // Get the uniform locations
180 |     $modelLoc = glGetUniformLocation($lightingShader->getId(), "model");
181 |     $viewLoc  = glGetUniformLocation($lightingShader->getId(),  "view");
182 |     $projLoc  = glGetUniformLocation($lightingShader->getId(),  "projection");
183 |     // Pass the matrices to the shader
184 |     glUniformMatrix4fv($viewLoc, 1, GL_FALSE, $view->toRowVector());
185 |     glUniformMatrix4fv($projLoc, 1, GL_FALSE, $projection->toRowVector());
186 | 
187 |     // Draw the container (using container's vertex attributes)
188 |     glBindVertexArray($containerVAO);
189 |     $model = new Matrix();
190 |     glUniformMatrix4fv($modelLoc, 1, GL_FALSE, $model->toRowVector());
191 |     glDrawArrays(GL_TRIANGLES, 0, 36);
192 |     glBindVertexArray(0);
193 | 
194 |     // Also draw the lamp object, again binding the appropriate shader
195 |     $lampShader->Use();
196 |     // Get location objects for the matrices on the lamp shader (these could be different on a different shader)
197 |     $modelLoc = glGetUniformLocation($lampShader->getId(), "model");
198 |     $viewLoc  = glGetUniformLocation($lampShader->getId(), "view");
199 |     $projLoc  = glGetUniformLocation($lampShader->getId(), "projection");
200 |     // Set matrices
201 |     glUniformMatrix4fv($viewLoc, 1, GL_FALSE, $view->toRowVector());
202 |     glUniformMatrix4fv($projLoc, 1, GL_FALSE, $projection->toRowVector());
203 |     $model = new Matrix;
204 |     $model = Transform::translate($model, $lightPos);
205 |     $model = $model->scale(0.2); // Make it a smaller cube
206 |     glUniformMatrix4fv($modelLoc, 1, GL_FALSE, $model->toRowVector());
207 |     // Draw the light object (using light's vertex attributes)
208 |     glBindVertexArray($lightVAO);
209 |     glDrawArrays(GL_TRIANGLES, 0, 36);
210 |     glBindVertexArray(0);
211 | 
212 |     // Swap the screen buffers
213 |     SDL_GL_SwapWindow($window);
214 | 	while(SDL_PollEvent($event)) {
215 | 	switch($event->type) {
216 | 	case SDL_MOUSEMOTION:
217 | 		$mouse_callback($event->motion->x, $event->motion->y);
218 | 		break;
219 | 	case SDL_KEYDOWN:
220 | 		$symChar = chr($event->key->keysym->sym);
221 | 		$keys['w'] = $symChar == 'w';
222 | 		$keys['s'] = $symChar == 's';
223 | 		$keys['a'] = $symChar == 'a';
224 | 		$keys['d'] = $symChar == 'd';
225 | 		break;
226 | 	case SDL_KEYUP:
227 | 		$keys = array_fill_keys(range('a', 'z'), false);
228 | 		break;
229 | 	}
230 | 	}
231 | 
232 | 
233 | 	SDL_Delay(10);
234 | }
235 | 
236 | function do_movement()
237 | {
238 |     global $deltaTime;
239 |     $camera = &$GLOBALS['camera'];
240 |     $keys = &$GLOBALS['keys'];
241 |     // Camera controls
242 |     if ($keys['w']) {
243 |         $camera->ProcessKeyboard(Camera::FORWARD, $deltaTime);
244 |     }
245 |     if ($keys['s']) {
246 |         $camera->ProcessKeyboard(Camera::BACKWARD, $deltaTime);
247 |     }
248 |     if ($keys['a']) {
249 |         $camera->ProcessKeyboard(Camera::LEFT, $deltaTime);
250 |     }
251 |     if ($keys['d']) {
252 |         $camera->ProcessKeyboard(Camera::RIGHT, $deltaTime);
253 |     }
254 | }
255 | 
256 | 


--------------------------------------------------------------------------------
/examples/lit-obj-model.php:
--------------------------------------------------------------------------------
  1 | <?php
  2 | 
  3 | require 'bootstrap.php';
  4 | require 'vendor/autoload.php';
  5 | 
  6 | ini_set('memory_limit', '2048M');
  7 | 
  8 | use \Mammoth\Graphic\Camera;
  9 | use \Mammoth\Graphic\Shader;
 10 | use Mammoth\Graphic\WavefrontObjLoader;
 11 | use Mammoth\Math\Angle;
 12 | use Mammoth\Math\Matrix;
 13 | use Mammoth\Math\Transform;
 14 | use Mammoth\Math\Vector;
 15 | 
 16 | // Window dimensions
 17 | define('WIDTH', 800);
 18 | define('HEIGHT', 600);
 19 | 
 20 | $camera = new Camera(new Vector(0, 0, 3));
 21 | $lastX  =  WIDTH  / 2.0;
 22 | $lastY  =  HEIGHT / 2.0;
 23 | $keys = array_fill_keys(range('a', 'z'), false);
 24 | 
 25 | $mouse_callback= function($xpos, $ypos)
 26 | {
 27 |     global $camera;
 28 |     $lastX = &$GLOBALS['lastX'];
 29 |     $lastY = &$GLOBALS['lastY'];
 30 |     static $firstMouse = true;
 31 |     if ($firstMouse)
 32 |     {
 33 |         $lastX = $xpos;
 34 |         $lastY = $ypos;
 35 |         $firstMouse = false;
 36 |     }
 37 | 
 38 |     $xoffset = $xpos - $lastX;
 39 |     $yoffset = $lastY - $ypos;  // Reversed since y-coordinates go from bottom to left
 40 | 
 41 |     $lastX = $xpos;
 42 |     $lastY = $ypos;
 43 | 
 44 |     $camera->ProcessMouseMovement($xoffset, $yoffset);
 45 | };
 46 | 
 47 | 
 48 | // Light attributes
 49 | $lightPos = new Vector(1.2, 1.0, 2.0);
 50 | 
 51 | // Deltatime
 52 | $deltaTime = 0.0;   // Time between current frame and last frame
 53 | $lastFrame = 0.0;   // Time of last frame
 54 | 
 55 | SDL_Init(SDL_INIT_EVERYTHING);
 56 | 
 57 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
 58 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
 59 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
 60 | 
 61 | $window = SDL_CreateWindow("Fixed pipeline example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN);
 62 | SDL_GL_CreateContext($window);
 63 | 
 64 | // Define the viewport dimensions
 65 | glViewport(0, 0, WIDTH, HEIGHT);
 66 | 
 67 | // OpenGL options
 68 | glEnable(GL_DEPTH_TEST);
 69 | 
 70 | $lightingShader = new Shader\Program;
 71 | $lightingShader->add(new Shader\Vertex("shaders/basic_lighting.vs"));
 72 | $lightingShader->add(new Shader\Fragment("shaders/basic_lighting.frag"));
 73 | $lightingShader->compile();
 74 | $lightingShader->link();
 75 | 
 76 | $lampShader = new shader\Program;
 77 | $lampShader->add(new Shader\Vertex("shaders/lamp.vs"));
 78 | $lampShader->add(new Shader\Fragment("shaders/lamp.frag"));
 79 | $lampShader->compile();
 80 | $lampShader->link();
 81 | 
 82 | $lightvertices = [
 83 |     -0.5, -0.5, -0.5,  0.0,  0.0, -1.0,
 84 |      0.5, -0.5, -0.5,  0.0,  0.0, -1.0,
 85 |      0.5,  0.5, -0.5,  0.0,  0.0, -1.0,
 86 |      0.5,  0.5, -0.5,  0.0,  0.0, -1.0,
 87 |     -0.5,  0.5, -0.5,  0.0,  0.0, -1.0,
 88 |     -0.5, -0.5, -0.5,  0.0,  0.0, -1.0,
 89 | 
 90 |     -0.5, -0.5,  0.5,  0.0,  0.0,  1.0,
 91 |      0.5, -0.5,  0.5,  0.0,  0.0,  1.0,
 92 |      0.5,  0.5,  0.5,  0.0,  0.0,  1.0,
 93 |      0.5,  0.5,  0.5,  0.0,  0.0,  1.0,
 94 |     -0.5,  0.5,  0.5,  0.0,  0.0,  1.0,
 95 |     -0.5, -0.5,  0.5,  0.0,  0.0,  1.0,
 96 | 
 97 |     -0.5,  0.5,  0.5, -1.0,  0.0,  0.0,
 98 |     -0.5,  0.5, -0.5, -1.0,  0.0,  0.0,
 99 |     -0.5, -0.5, -0.5, -1.0,  0.0,  0.0,
100 |     -0.5, -0.5, -0.5, -1.0,  0.0,  0.0,
101 |     -0.5, -0.5,  0.5, -1.0,  0.0,  0.0,
102 |     -0.5,  0.5,  0.5, -1.0,  0.0,  0.0,
103 | 
104 |      0.5,  0.5,  0.5,  1.0,  0.0,  0.0,
105 |      0.5,  0.5, -0.5,  1.0,  0.0,  0.0,
106 |      0.5, -0.5, -0.5,  1.0,  0.0,  0.0,
107 |      0.5, -0.5, -0.5,  1.0,  0.0,  0.0,
108 |      0.5, -0.5,  0.5,  1.0,  0.0,  0.0,
109 |      0.5,  0.5,  0.5,  1.0,  0.0,  0.0,
110 | 
111 |     -0.5, -0.5, -0.5,  0.0, -1.0,  0.0,
112 |      0.5, -0.5, -0.5,  0.0, -1.0,  0.0,
113 |      0.5, -0.5,  0.5,  0.0, -1.0,  0.0,
114 |      0.5, -0.5,  0.5,  0.0, -1.0,  0.0,
115 |     -0.5, -0.5,  0.5,  0.0, -1.0,  0.0,
116 |     -0.5, -0.5, -0.5,  0.0, -1.0,  0.0,
117 | 
118 |     -0.5,  0.5, -0.5,  0.0,  1.0,  0.0,
119 |      0.5,  0.5, -0.5,  0.0,  1.0,  0.0,
120 |      0.5,  0.5,  0.5,  0.0,  1.0,  0.0,
121 |      0.5,  0.5,  0.5,  0.0,  1.0,  0.0,
122 |     -0.5,  0.5,  0.5,  0.0,  1.0,  0.0,
123 |     -0.5,  0.5, -0.5,  0.0,  1.0,  0.0
124 | ];
125 | 
126 | $loader = new WavefrontObjLoader;
127 | $obj = $loader->load($argc === 2 ? $argv[1] : 'models/pumpkin.obj');
128 | 
129 | // Set up vertex data (and buffer(s)) and attribute pointers
130 | $verticesVectors = $obj->getVertices(); 
131 | $vertices = [];
132 | foreach($verticesVectors as $vector) {
133 |     $vertices[] = $vector->x;
134 |     $vertices[] = $vector->y;
135 |     $vertices[] = $vector->z;
136 | }
137 | $indices = $obj->getVertexFaces(); 
138 | $indices = array_map(function($index) { return $index - 1; }, $indices);
139 | 
140 | $normalObjects = $obj->getVertexNormals();
141 | $normals = [];
142 | foreach($normalObjects as $index => $normalObject) {
143 |     if(!($normalObject instanceof Vector)) {
144 |         echo "INDEX: $index\n";
145 |         var_dump($normalObject);
146 |         die;
147 |     }
148 |      else {
149 |         $normals[] = $normalObject->x;
150 |         $normals[] = $normalObject->y;
151 |         $normals[] = $normalObject->z;
152 |     }
153 | }
154 | 
155 | // First, set the container's VAO (and VBO)
156 | glGenVertexArrays(1, $containerVAOS); $containerVAO = $containerVAOS[0];
157 | glBindVertexArray($containerVAO);
158 | 
159 | glGenBuffers(1, $VBOS); $VBO = $VBOS[0];
160 | 
161 | glBindBuffer(GL_ARRAY_BUFFER, $VBO);
162 | glBufferData(GL_ARRAY_BUFFER, sizeof($vertices) * 4, $vertices, GL_STATIC_DRAW);
163 | 
164 | glGenBuffers(1, $vbo_normals); $vbo_normal = $vbo_normals[0];
165 | glBindBuffer(GL_ARRAY_BUFFER, $vbo_normal);
166 | glBufferData(GL_ARRAY_BUFFER, count($normals) * 4, $normals, GL_STATIC_DRAW);
167 | 
168 | 
169 | glGenBuffers(1, $ebos); $ebo = $ebos[0];
170 | glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, $ebo);
171 | glBufferData(GL_ELEMENT_ARRAY_BUFFER, count($indices) * 4, $indices, GL_STATIC_DRAW);
172 | 
173 | // Position attribute
174 | glEnableVertexAttribArray(0);
175 | glBindBuffer(GL_ARRAY_BUFFER, $VBO);
176 | glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, 0);
177 | // Normal attribute
178 | glEnableVertexAttribArray(1);
179 | glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0, 0);
180 | glBindVertexArray(0);
181 | 
182 | // Then, we set the light's VAO (VBO stays the same. After all, the vertices are the same for the light object (also a 3D cube))
183 | glGenVertexArrays(1, $lightVAOS); $lightVAO = $lightVAOS[0];
184 | glBindVertexArray($lightVAO);
185 | 
186 | glGenBuffers(1, $VBOS_light); $VBO_light = $VBOS_light[0];
187 | 
188 | glBindBuffer(GL_ARRAY_BUFFER, $VBO_light);
189 | glBufferData(GL_ARRAY_BUFFER, sizeof($lightvertices) * 4, $lightvertices, GL_STATIC_DRAW);
190 | 
191 | // Set the vertex attributes (only position data for the lamp))
192 | glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6 * 4, 0); // Note that we skip over the normal vectors
193 | glEnableVertexAttribArray(0);
194 | glBindVertexArray(0);
195 | 
196 | $event = new SDL_Event;
197 | while(true) {
198 |         // Calculate deltatime of current frame
199 |     $lightingShader = &$GLOBALS['lightingShader'];
200 |     $lampShader = &$GLOBALS['lampShader'];
201 |     $lastFrame = &$GLOBALS['lastFrame'];
202 |     $deltaTime = &$GLOBALS['deltaTime'];
203 |     $currentFrame = microtime(true);
204 |     $deltaTime = $currentFrame - $lastFrame;
205 |     $lastFrame = $currentFrame;
206 | 
207 |     // Check if any events have been activiated (key pressed, mouse moved etc.) and call corresponding response functions
208 |     do_movement();
209 | 
210 |     // Clear the colorbuffer
211 |     glClearColor(0.1, 0.1, 0.1, 1.0);
212 |     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
213 | 
214 |     // Use cooresponding shader when setting uniforms/drawing objects
215 |     $lightingShader->use();
216 |     $objectColorLoc = glGetUniformLocation($lightingShader->getId(), "objectColor");
217 |     glUniform3f($objectColorLoc,  1.0, .5, 0.31);
218 |     $lightColorLoc  = glGetUniformLocation($lightingShader->getId(), "lightColor");
219 |     glUniform3f($lightColorLoc,  1.0, 1.0, 1.0);
220 |     $lightPosLoc    = glGetUniformLocation($lightingShader->getId(), "lightPos");
221 |     glUniform3f($lightPosLoc,    $lightPos->x, $lightPos->y, $lightPos->z);
222 |     $viewPosLoc     = glGetUniformLocation($lightingShader->getId(), "viewPos");
223 |     glUniform3f($viewPosLoc,     $camera->position->x, $camera->position->y, $camera->position->z);
224 | 
225 |     // Create camera transformations
226 |     $view = new Matrix();
227 |     $view = $camera->GetViewMatrix();
228 |     $projection = Transform::perspective($camera->zoom, floatval(WIDTH / HEIGHT), 0.1, 100.0);
229 |     // Get the uniform locations
230 |     $modelLoc = glGetUniformLocation($lightingShader->getId(), "model");
231 |     $viewLoc  = glGetUniformLocation($lightingShader->getId(),  "view");
232 |     $projLoc  = glGetUniformLocation($lightingShader->getId(),  "projection");
233 |     // Pass the matrices to the shader
234 |     glUniformMatrix4fv($viewLoc, 1, GL_FALSE, $view->toRowVector());
235 |     glUniformMatrix4fv($projLoc, 1, GL_FALSE, $projection->toRowVector());
236 | 
237 |     // Draw the container (using container's vertex attributes)
238 |     glBindVertexArray($containerVAO);
239 |     $model = new Matrix;
240 |     $model = $model->scale(0.3);
241 |     $model = Transform::rotate($model, deg2rad(90), new Vector(1, 1, 1));
242 |     glUniformMatrix4fv($modelLoc, 1, GL_FALSE, $model->toRowVector());
243 |     $a = count($indices);
244 |     glDrawElements(GL_TRIANGLES, $a, GL_UNSIGNED_INT, null);
245 |     glBindVertexArray(0);
246 | 
247 |     // Also draw the lamp object, again binding the appropriate shader
248 |     $lampShader->use();
249 |     // Get location objects for the matrices on the lamp shader (these could be different on a different shader)
250 |     $modelLoc = glGetUniformLocation($lampShader->getId(), "model");
251 |     $viewLoc  = glGetUniformLocation($lampShader->getId(), "view");
252 |     $projLoc  = glGetUniformLocation($lampShader->getId(), "projection");
253 |     // Set matrices
254 |     glUniformMatrix4fv($viewLoc, 1, GL_FALSE, $view->toRowVector());
255 |     glUniformMatrix4fv($projLoc, 1, GL_FALSE, $projection->toRowVector());
256 |     $model = new Matrix;
257 |     $model = Transform::translate($model, $lightPos);
258 |     $model = $model->scale(0.2); // Make it a smaller cube
259 |     glUniformMatrix4fv($modelLoc, 1, GL_FALSE, $model->toRowVector());
260 |     // Draw the light object (using light's vertex attributes)
261 |     glBindVertexArray($lightVAO);
262 |     glDrawArrays(GL_TRIANGLES, 0, 36);
263 |     glBindVertexArray(0);
264 | 
265 |     // Swap the screen buffers
266 |     SDL_GL_SwapWindow($window);
267 | 	while(SDL_PollEvent($event)) {
268 | 	switch($event->type) {
269 | 	case SDL_MOUSEMOTION:
270 | 		$mouse_callback($event->motion->x, $event->motion->y);
271 | 		break;
272 | 	case SDL_KEYDOWN:
273 | 		$symChar = chr($event->key->keysym->sym);
274 | 		$keys['w'] = $symChar == 'w';
275 | 		$keys['s'] = $symChar == 's';
276 | 		$keys['a'] = $symChar == 'a';
277 | 		$keys['d'] = $symChar == 'd';
278 | 		break;
279 | 	case SDL_KEYUP:
280 | 		$keys = array_fill_keys(range('a', 'z'), false);
281 | 		break;
282 | 	}
283 | 	}
284 | 
285 | }
286 | 
287 | function do_movement()
288 | {
289 |     global $deltaTime;
290 |     $camera = &$GLOBALS['camera'];
291 |     $keys = &$GLOBALS['keys'];
292 |     // Camera controls
293 |     if ($keys['w']) {
294 |         $camera->ProcessKeyboard(Camera::FORWARD, $deltaTime);
295 |     }
296 |     if ($keys['s']) {
297 |         $camera->ProcessKeyboard(Camera::BACKWARD, $deltaTime);
298 |     }
299 |     if ($keys['a']) {
300 |         $camera->ProcessKeyboard(Camera::LEFT, $deltaTime);
301 |     }
302 |     if ($keys['d']) {
303 |         $camera->ProcessKeyboard(Camera::RIGHT, $deltaTime);
304 |     }
305 | }
306 | 
307 | 
308 | 


--------------------------------------------------------------------------------
/examples/camera.php:
--------------------------------------------------------------------------------
  1 | <?php
  2 | 
  3 | require 'bootstrap.php';
  4 | require 'vendor/autoload.php';
  5 | 
  6 | use Mammoth\Graphic\ImageLoader;
  7 | use \Mammoth\Graphic\Shader;
  8 | use Mammoth\Math\Angle;
  9 | use Mammoth\Math\Matrix;
 10 | use Mammoth\Math\Transform;
 11 | use Mammoth\Math\Vector;
 12 | 
 13 | // http://learnopengl.com/code_viewer.php?code=getting-started/camera_zoom
 14 | 
 15 | const WIDTH = 1024;
 16 | const HEIGHT = 768;
 17 | 
 18 | // Camera
 19 | $cameraPos   = new Vector(0.0, 0.0,  3.0);
 20 | $cameraFront = new Vector(0.0, 0.0, -1.0);
 21 | $cameraUp    = new Vector(0.0, 1.0,  0.0);
 22 | 
 23 | $yaw    = -90.0;    // Yaw is initialized to -90.0 degrees since a yaw of 0.0 results in a direction vector pointing to the right (due to how Eular angles work) so we initially rotate a bit to the left.
 24 | $pitch  =  0.0;
 25 | 
 26 | $lastMouseCoordinates = null;
 27 | 
 28 | $fov =  45.0;
 29 | $keys = array_fill_keys(range('a', 'z'), false);
 30 | 
 31 | // Deltatime
 32 | $deltaTime = 0.0;   // Time between current frame and last frame
 33 | $lastFrame = 0.0;   // Time of last frame
 34 | 
 35 | function updateCameraPosition()
 36 | {
 37 |     global $keys, $deltaTime, $cameraUp, $cameraFront;
 38 |     $cameraPos = &$GLOBALS['cameraPos'];
 39 |     // Camera controls
 40 |     $cameraSpeed = 5.0 * $deltaTime;
 41 |     if ($keys['w']) {
 42 |         $cameraPos = $cameraPos->add($cameraFront->scale($cameraSpeed));
 43 |     }
 44 |     if ($keys['s']) {
 45 |         $cameraPos = $cameraPos->substract($cameraFront->scale($cameraSpeed));
 46 |     }
 47 |     if ($keys['a']) {
 48 |         $cameraPos = $cameraPos->substract(
 49 |             $cameraFront->cross($cameraUp)->normalize()->scale($cameraSpeed)
 50 |         );
 51 |     }
 52 |     if ($keys['d']) {
 53 |         $cameraPos = $cameraPos->add(
 54 |             $cameraFront->cross($cameraUp)->normalize()->scale($cameraSpeed)
 55 |         );
 56 |     }
 57 | }
 58 | $scroll_callback = function ($wheel, $direction, $x, $y) {
 59 |     $fov = &$GLOBALS['fov'];
 60 |     if ($fov >= 1.0 && $fov <= 45.0)
 61 |         $fov -= $direction;
 62 |     if ($fov <= 1.0)
 63 |         $fov = 1.0;
 64 |     if ($fov >= 45.0)
 65 |         $fov = 45.0;
 66 | };
 67 | $motion_callback = function ($xpos, $ypos) use(&$lastMouseCoordinates) {
 68 |     $yaw = &$GLOBALS['yaw'];
 69 |     $pitch = &$GLOBALS['pitch'];
 70 | 
 71 |     if (null === $lastMouseCoordinates) {
 72 |         $lastMouseCoordinates = new Vector($xpos-(WIDTH>>1), $ypos+(HEIGHT>>1));
 73 |     }
 74 | 
 75 |     $xoffset = $xpos - $lastMouseCoordinates->x;
 76 |     $yoffset = $lastMouseCoordinates->y - $ypos; // Reversed since y-coordinates go from bottom to left
 77 |     $lastMouseCoordinates = new Vector($xpos, $ypos);
 78 | 
 79 |     $sensitivity = 0.1; // Change this value to your liking
 80 |     $xoffset *= $sensitivity;
 81 |     $yoffset *= $sensitivity;
 82 | 
 83 |     $yaw   += $xoffset;
 84 |     $pitch += $yoffset;
 85 | 
 86 |     // Make sure that when pitch is out of bounds, screen doesn't get flipped
 87 |     if ($pitch > 89.0)
 88 |         $pitch = 89.0;
 89 |     if ($pitch < -89.0)
 90 |         $pitch = -89.0;
 91 | 
 92 |     $front = new Vector(
 93 |             cos(Angle::toRadians($yaw)) * cos(Angle::toRadians($pitch)),
 94 |             sin(Angle::toRadians($pitch)),
 95 |             sin(Angle::toRadians($yaw)) * cos(Angle::toRadians($pitch))
 96 |         );
 97 |     $GLOBALS['cameraFront'] = $front->normalize();
 98 | };
 99 | 
100 | SDL_Init(SDL_INIT_EVERYTHING);
101 | 
102 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 4);
103 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
104 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
105 | 
106 | $window = SDL_CreateWindow("Fixed pipeline example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, WIDTH, HEIGHT, SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN);
107 | SDL_GL_CreateContext($window);
108 | 
109 | // Define the viewport dimensions
110 | glViewport(0, 0, WIDTH, HEIGHT);
111 | 
112 | glEnable(GL_DEPTH_TEST);
113 | //glDepthFunc(GL_LESS);
114 | 
115 | //glFrontFace(GL_CCW);;
116 | 
117 | // Build and compile our shader program
118 | $shaderProgram = new Shader\Program;
119 | $shaderProgram->add(new Shader\Vertex("shaders/camera.vert"));
120 | $shaderProgram->add(new Shader\Fragment("shaders/camera.frag"));
121 | $shaderProgram->compile();
122 | $shaderProgram->link();
123 | 
124 | // Set up vertex data (and buffer(s)) and attribute pointers
125 | $vertices = [
126 |     -0.5, -0.5, -0.5,  0.0, 0.0,
127 |     0.5, -0.5, -0.5,  1.0, 0.0,
128 |     0.5,  0.5, -0.5,  1.0, 1.0,
129 |     0.5,  0.5, -0.5,  1.0, 1.0,
130 |     -0.5,  0.5, -0.5,  0.0, 1.0,
131 |     -0.5, -0.5, -0.5,  0.0, 0.0,
132 | 
133 |     -0.5, -0.5,  0.5,  0.0, 0.0,
134 |     0.5, -0.5,  0.5,  1.0, 0.0,
135 |     0.5,  0.5,  0.5,  1.0, 1.0,
136 |     0.5,  0.5,  0.5,  1.0, 1.0,
137 |     -0.5,  0.5,  0.5,  0.0, 1.0,
138 |     -0.5, -0.5,  0.5,  0.0, 0.0,
139 | 
140 |     -0.5,  0.5,  0.5,  1.0, 0.0,
141 |     -0.5,  0.5, -0.5,  1.0, 1.0,
142 |     -0.5, -0.5, -0.5,  0.0, 1.0,
143 |     -0.5, -0.5, -0.5,  0.0, 1.0,
144 |     -0.5, -0.5,  0.5,  0.0, 0.0,
145 |     -0.5,  0.5,  0.5,  1.0, 0.0,
146 | 
147 |     0.5,  0.5,  0.5,  1.0, 0.0,
148 |     0.5,  0.5, -0.5,  1.0, 1.0,
149 |     0.5, -0.5, -0.5,  0.0, 1.0,
150 |     0.5, -0.5, -0.5,  0.0, 1.0,
151 |     0.5, -0.5,  0.5,  0.0, 0.0,
152 |     0.5,  0.5,  0.5,  1.0, 0.0,
153 | 
154 |     -0.5, -0.5, -0.5,  0.0, 1.0,
155 |     0.5, -0.5, -0.5,  1.0, 1.0,
156 |     0.5, -0.5,  0.5,  1.0, 0.0,
157 |     0.5, -0.5,  0.5,  1.0, 0.0,
158 |     -0.5, -0.5,  0.5,  0.0, 0.0,
159 |     -0.5, -0.5, -0.5,  0.0, 1.0,
160 | 
161 |     -0.5,  0.5, -0.5,  0.0, 1.0,
162 |     0.5,  0.5, -0.5,  1.0, 1.0,
163 |     0.5,  0.5,  0.5,  1.0, 0.0,
164 |     0.5,  0.5,  0.5,  1.0, 0.0,
165 |     -0.5,  0.5,  0.5,  0.0, 0.0,
166 |     -0.5,  0.5, -0.5,  0.0, 1.0
167 | ];
168 | 
169 | $cubePositions = [
170 |     new Vector(0.0,  0.0,  0.0),
171 |     new Vector(2.0,  5.0, -15.0),
172 |     new Vector(-1.5, -2.2, -2.5),
173 |     new Vector(-3.8, -2.0, -12.3),
174 |     new Vector(2.4, -0.4, -3.5),
175 |     new Vector(-1.7,  3.0, -7.5),
176 |     new Vector(1.3, -2.0, -2.5),
177 |     new Vector(1.5,  2.0, -2.5),
178 |     new Vector(1.5,  0.2, -1.5),
179 |     new Vector(-1.3,  1.0, -1.5)
180 | ];
181 | 
182 | glGenVertexArrays(1, $VAOS);
183 | $VAO = $VAOS[0];
184 | glGenBuffers(1, $VBOS);
185 | $VBO = $VBOS[0];
186 | 
187 | glBindVertexArray($VAO);
188 | 
189 | glBindBuffer(GL_ARRAY_BUFFER, $VBO);
190 | glBufferData(GL_ARRAY_BUFFER, sizeof($vertices) * 4, $vertices, GL_STATIC_DRAW);
191 | 
192 | // Position attribute
193 | glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 5 * 4, 0);
194 | glEnableVertexAttribArray(0);
195 | // TexCoord attribute
196 | glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 5 * 4, (3 * 4));
197 | glEnableVertexAttribArray(2);
198 | 
199 | glBindVertexArray(0); // Unbind VAO
200 | 
201 | $imageLoader = new ImageLoader;
202 | 
203 | // Load and create a texture 
204 | $textures = [];
205 | // ====================
206 | // Texture 1
207 | // ====================
208 | glGenTextures(1, $textures);
209 | $texture1 = $textures[0];
210 | glBindTexture(GL_TEXTURE_2D, $texture1); // All upcoming GL_TEXTURE_2D operations now have effect on our texture object
211 | // Set our texture parameters
212 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);   // Set texture wrapping to GL_REPEAT
213 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
214 | // Set texture filtering
215 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
216 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
217 | // Load, create texture and generate mipmaps
218 | $image = $imageLoader->load("textures/container.jpg", $width, $height);
219 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, $width, $height, 0, GL_BGRA, GL_UNSIGNED_BYTE, $image);
220 | glGenerateMipmap(GL_TEXTURE_2D);
221 | glBindTexture(GL_TEXTURE_2D, 0); // Unbind texture when done, so we won't accidentily mess up our texture.
222 | // ===================
223 | // Texture 2
224 | // ===================
225 | $textures2 = [];
226 | glGenTextures(1, $textures2);
227 | $texture2 = $textures2[0];
228 | glBindTexture(GL_TEXTURE_2D, $texture2);
229 | // Set our texture parameters
230 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
231 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
232 | // Set texture filtering
233 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
234 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
235 | // Load, create texture and generate mipmaps
236 | $image = $imageLoader->load("textures/awesomeface.png", $width, $height);
237 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, $width, $height, 0, GL_BGRA, GL_UNSIGNED_BYTE, $image);
238 | glGenerateMipmap(GL_TEXTURE_2D);
239 | glBindTexture(GL_TEXTURE_2D, 0);
240 | 
241 | $event = new SDL_Event;
242 | 
243 | $quit = false;
244 | 
245 | // Game loop
246 | while (!$quit) {
247 |     // Calculate deltatime of current frame
248 |     $currentFrame = microtime(true);
249 |     $deltaTime = $currentFrame - $lastFrame;
250 |     $lastFrame = $currentFrame;
251 | 
252 |     while (SDL_PollEvent($event)) {
253 |         switch ($event->type) {
254 |             case SDL_MOUSEMOTION:
255 |                 $motion_callback($event->motion->x, $event->motion->y);
256 |                 break;
257 |             case SDL_KEYDOWN:
258 |                 $symChar = chr($event->key->keysym->sym);
259 |                 $keys['w'] = $symChar == 'w';
260 |                 $keys['s'] = $symChar == 's';
261 |                 $keys['a'] = $symChar == 'a';
262 |                 $keys['d'] = $symChar == 'd';
263 |                 break;
264 |             case SDL_KEYUP:
265 |                 $keys = array_fill_keys(range('a', 'z'), false);
266 |                 break;
267 |             case SDL_QUIT:
268 |                 $quit = true;
269 |                 break;
270 |         }
271 |     }
272 | 
273 |     // Check if any events have been activiated (key pressed, mouse moved etc.) and call corresponding response functions
274 |     updateCameraPosition();
275 | 
276 |     // Render
277 |     // Clear the colorbuffer
278 |     glClearColor(0.2, 0.3, 0.3, 1.0);
279 |     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
280 | 
281 |     // Bind Textures using texture units
282 |     glActiveTexture(GL_TEXTURE0);
283 |     glBindTexture(GL_TEXTURE_2D, $texture1);
284 |     glUniform1i(glGetUniformLocation($shaderProgram->getId(), "ourTexture1"), 0);
285 |     glActiveTexture(GL_TEXTURE1);
286 |     glBindTexture(GL_TEXTURE_2D, $texture2);
287 |     glUniform1i(glGetUniformLocation($shaderProgram->getId(), "ourTexture2"), 1);
288 | 
289 |     // Activate shader
290 |     $shaderProgram->Use();
291 | 
292 |     // Projection 
293 |     $projection = Transform::perspective($fov, (float)WIDTH / (float)HEIGHT, 0.1, 100.0);
294 |     // Get the uniform locations
295 | 
296 |     // Camera/View transformation
297 |     $view = Transform::lookAt($cameraPos, $cameraPos->add($cameraFront), $cameraUp);
298 | 
299 |     $modelLoc = glGetUniformLocation($shaderProgram->getId(), "model");
300 |     $viewLoc = glGetUniformLocation($shaderProgram->getId(), "view");
301 |     $projLoc = glGetUniformLocation($shaderProgram->getId(), "projection");
302 |     // Pass the matrices to the shader
303 |     glUniformMatrix4fv($viewLoc, 1, GL_FALSE, $view->toRowVector());
304 |     glUniformMatrix4fv($projLoc, 1, GL_FALSE, $projection->toRowVector());
305 | 
306 |     glBindVertexArray($VAO);
307 |     for ($i = 0; $i < count($cubePositions); $i++) {
308 |         // Calculate the model matrix for each object and pass it to shader before drawing
309 |         $model = new Matrix();
310 |         $model = Transform::translate($model, $cubePositions[$i]);
311 |         $angle = 20.0 * $i;
312 |         $model = Transform::rotate($model, $angle, new Vector(1.0, 0.3, 0.5));
313 |         glUniformMatrix4fv($modelLoc, 1, GL_FALSE, $model->toRowVector());
314 | 
315 |         glDrawArrays(GL_TRIANGLES, 0, 36);
316 |     }
317 |     glBindVertexArray(0);
318 | 
319 |     // Swap the screen buffers
320 |     SDL_GL_SwapWindow($window);
321 | }
322 | 
323 | glDeleteVertexArrays(1, $VAO);
324 | glDeleteBuffers(1, $VBO);
325 | 


--------------------------------------------------------------------------------
/examples/models/gourd.obj:
--------------------------------------------------------------------------------
  1 | v -0.23876920554499864 1.3103797270601687 0.13001260700009193
  2 | v -0.27582915374543276 1.2582563331865875 0.12364597630502337
  3 | v -0.2674888336016338 1.3474373225751202 0.15912747459742976
  4 | v -0.3128662756980407 1.222713216834852 0.14623565543301947
  5 | v -0.3018967864385568 1.3832552573955716 0.1992584345763206
  6 | v -0.3291084911674431 1.4015778151496097 0.23515159787549716
  7 | v -0.3393653203892503 1.1606446817887044 0.25033862660881895
  8 | v -0.32933702685159627 1.3872894114706185 0.30297184764306634
  9 | v -0.34413945029647036 1.1847846590886826 0.3161902839586921
 10 | v -0.32731404147036136 1.3472171185436952 0.33599708012099205
 11 | v -0.31993727304296354 1.2010232341929186 0.3533614819463716
 12 | v -0.30726711945847285 1.2956437760677335 0.3643485926629952
 13 | v -0.2877856463729185 1.2493470906219926 0.38230872912669633
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980 | 


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/examples/models/suzanne.obj:
--------------------------------------------------------------------------------
   1 | # Blender v2.58 (sub 0) OBJ File: ''
   2 | # www.blender.org
   3 | o Monkey
   4 | v 0.437500 0.164063 0.765625
   5 | v -0.437500 0.164063 0.765625
   6 | v 0.500000 0.093750 0.687500
   7 | v -0.500000 0.093750 0.687500
   8 | v 0.546875 0.054688 0.578125
   9 | v -0.546875 0.054688 0.578125
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 509 | v 0.859375 0.382812 -0.382813
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 511 | usemtl (null)
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1229 | f 324 380 352
1230 | f 353 381 325
1231 | f 400 388 414
1232 | f 400 414 402
1233 | f 415 389 401
1234 | f 415 401 403
1235 | f 400 402 404
1236 | f 400 404 398
1237 | f 405 403 401
1238 | f 405 401 399
1239 | f 398 404 406
1240 | f 398 406 396
1241 | f 407 405 399
1242 | f 407 399 397
1243 | f 396 406 408
1244 | f 396 408 394
1245 | f 409 407 397
1246 | f 409 397 395
1247 | f 394 408 410
1248 | f 394 410 392
1249 | f 411 409 395
1250 | f 411 395 393
1251 | f 392 410 412
1252 | f 392 412 390
1253 | f 413 411 393
1254 | f 413 393 391
1255 | f 410 420 418
1256 | f 410 418 412
1257 | f 419 421 411
1258 | f 419 411 413
1259 | f 408 422 420
1260 | f 408 420 410
1261 | f 421 423 409
1262 | f 421 409 411
1263 | f 406 424 422
1264 | f 406 422 408
1265 | f 423 425 407
1266 | f 423 407 409
1267 | f 404 426 424
1268 | f 404 424 406
1269 | f 425 427 405
1270 | f 425 405 407
1271 | f 402 428 426
1272 | f 402 426 404
1273 | f 427 429 403
1274 | f 427 403 405
1275 | f 402 414 416
1276 | f 402 416 428
1277 | f 417 415 403
1278 | f 417 403 429
1279 | f 318 320 444
1280 | f 318 444 442
1281 | f 445 321 319
1282 | f 445 319 443
1283 | f 320 390 412
1284 | f 320 412 444
1285 | f 413 391 321
1286 | f 413 321 445
1287 | f 310 318 442
1288 | f 310 442 312
1289 | f 443 319 311
1290 | f 443 311 313
1291 | f 382 430 414
1292 | f 382 414 388
1293 | f 415 431 383
1294 | f 415 383 389
1295 | f 412 418 440
1296 | f 412 440 444
1297 | f 441 419 413
1298 | f 441 413 445
1299 | f 438 446 444
1300 | f 438 444 440
1301 | f 445 447 439
1302 | f 445 439 441
1303 | f 434 446 438
1304 | f 434 438 436
1305 | f 439 447 435
1306 | f 439 435 437
1307 | f 432 448 446
1308 | f 432 446 434
1309 | f 447 449 433
1310 | f 447 433 435
1311 | f 430 448 432
1312 | f 430 432 450
1313 | f 433 449 431
1314 | f 433 431 451
1315 | f 414 430 450
1316 | f 414 450 416
1317 | f 451 431 415
1318 | f 451 415 417
1319 | f 312 448 430
1320 | f 312 430 382
1321 | f 431 449 313
1322 | f 431 313 383
1323 | f 312 442 446
1324 | f 312 446 448
1325 | f 447 443 313
1326 | f 447 313 449
1327 | f 442 444 446
1328 | f 447 445 443
1329 | f 416 450 452
1330 | f 416 452 476
1331 | f 453 451 417
1332 | f 453 417 477
1333 | f 450 432 462
1334 | f 450 462 452
1335 | f 463 433 451
1336 | f 463 451 453
1337 | f 432 434 460
1338 | f 432 460 462
1339 | f 461 435 433
1340 | f 461 433 463
1341 | f 434 436 458
1342 | f 434 458 460
1343 | f 459 437 435
1344 | f 459 435 461
1345 | f 436 438 456
1346 | f 436 456 458
1347 | f 457 439 437
1348 | f 457 437 459
1349 | f 438 440 454
1350 | f 438 454 456
1351 | f 455 441 439
1352 | f 455 439 457
1353 | f 440 418 474
1354 | f 440 474 454
1355 | f 475 419 441
1356 | f 475 441 455
1357 | f 428 416 476
1358 | f 428 476 464
1359 | f 477 417 429
1360 | f 477 429 465
1361 | f 426 428 464
1362 | f 426 464 466
1363 | f 465 429 427
1364 | f 465 427 467
1365 | f 424 426 466
1366 | f 424 466 468
1367 | f 467 427 425
1368 | f 467 425 469
1369 | f 422 424 468
1370 | f 422 468 470
1371 | f 469 425 423
1372 | f 469 423 471
1373 | f 420 422 470
1374 | f 420 470 472
1375 | f 471 423 421
1376 | f 471 421 473
1377 | f 418 420 472
1378 | f 418 472 474
1379 | f 473 421 419
1380 | f 473 419 475
1381 | f 458 456 480
1382 | f 458 480 478
1383 | f 481 457 459
1384 | f 481 459 479
1385 | f 478 480 482
1386 | f 478 482 484
1387 | f 483 481 479
1388 | f 483 479 485
1389 | f 484 482 488
1390 | f 484 488 486
1391 | f 489 483 485
1392 | f 489 485 487
1393 | f 486 488 490
1394 | f 486 490 492
1395 | f 491 489 487
1396 | f 491 487 493
1397 | f 464 476 486
1398 | f 464 486 492
1399 | f 487 477 465
1400 | f 487 465 493
1401 | f 452 484 486
1402 | f 452 486 476
1403 | f 487 485 453
1404 | f 487 453 477
1405 | f 452 462 478
1406 | f 452 478 484
1407 | f 479 463 453
1408 | f 479 453 485
1409 | f 458 478 462
1410 | f 458 462 460
1411 | f 463 479 459
1412 | f 463 459 461
1413 | f 454 474 480
1414 | f 454 480 456
1415 | f 481 475 455
1416 | f 481 455 457
1417 | f 472 482 480
1418 | f 472 480 474
1419 | f 481 483 473
1420 | f 481 473 475
1421 | f 470 488 482
1422 | f 470 482 472
1423 | f 483 489 471
1424 | f 483 471 473
1425 | f 468 490 488
1426 | f 468 488 470
1427 | f 489 491 469
1428 | f 489 469 471
1429 | f 466 492 490
1430 | f 466 490 468
1431 | f 491 493 467
1432 | f 491 467 469
1433 | f 464 492 466
1434 | f 467 493 465
1435 | f 392 390 504
1436 | f 392 504 502
1437 | f 505 391 393
1438 | f 505 393 503
1439 | f 394 392 502
1440 | f 394 502 500
1441 | f 503 393 395
1442 | f 503 395 501
1443 | f 396 394 500
1444 | f 396 500 498
1445 | f 501 395 397
1446 | f 501 397 499
1447 | f 398 396 498
1448 | f 398 498 496
1449 | f 499 397 399
1450 | f 499 399 497
1451 | f 400 398 496
1452 | f 400 496 494
1453 | f 497 399 401
1454 | f 497 401 495
1455 | f 388 400 494
1456 | f 388 494 506
1457 | f 495 401 389
1458 | f 495 389 507
1459 | f 494 502 504
1460 | f 494 504 506
1461 | f 505 503 495
1462 | f 505 495 507
1463 | f 494 496 500
1464 | f 494 500 502
1465 | f 501 497 495
1466 | f 501 495 503
1467 | f 496 498 500
1468 | f 501 499 497
1469 | f 314 382 388
1470 | f 314 388 506
1471 | f 389 383 315
1472 | f 389 315 507
1473 | f 314 506 504
1474 | f 314 504 322
1475 | f 505 507 315
1476 | f 505 315 323
1477 | f 320 322 504
1478 | f 320 504 390
1479 | f 505 323 321
1480 | f 505 321 391
1481 | 


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