model loading, cubemap, skybox

meson.build

@@ -5,6 +5,7 @@ project(
 )
 
 glfw3_dep = dependency('glfw3')
+assimp_dep = dependency('assimp')
 incdir = include_directories(['src', 'src/vendor'])
 
 executable(
@@ -12,8 +13,12 @@ executable(
     './src/common.cpp',
     './src/shader.cpp',
     './src/camera.cpp',
+    './src/stb_image_impl.cpp',
+    './src/texture.cpp',
+    './src/mesh.cpp',
+    './src/primitives.cpp',
     './src/main.cpp',
     './src/vendor/glad/glad.c',
     include_directories : incdir,
-    dependencies : [glfw3_dep]
+    dependencies : [glfw3_dep, assimp_dep]
 )

shaders/lighting_fragment.glsl

@@ -1,4 +1,4 @@
-#version 330 core
+#version 430 core
 out vec4 FragColor;
 
 in vec3 Normal;
@@ -6,8 +6,8 @@ in vec3 FragPos;
 in vec2 TexCoords;
 
 struct Material {
-    sampler2D diffuse;
-    sampler2D specular;
+    sampler2D texture_diffuse1;
+    sampler2D texture_specular1;
     float shininess;
 };
 
@@ -64,9 +64,9 @@ vec3 ComputeDirectionalLight(DirectionalLight light, vec3 norm, vec3 viewDir)
     float diff = max(dot(norm, lightDir), 0.0);
     float spec = pow(max(dot(viewDir, reflectDir), 0.0), material.shininess);
 
-    vec3 ambient = light.ambient * vec3(texture(material.diffuse, TexCoords));
-    vec3 diffuse = light.diffuse * diff * vec3(texture(material.diffuse, TexCoords));
-    vec3 specular = light.specular * spec * vec3(texture(material.specular, TexCoords));
+    vec3 ambient = light.ambient * vec3(texture(material.texture_diffuse1, TexCoords));
+    vec3 diffuse = light.diffuse * diff * vec3(texture(material.texture_diffuse1, TexCoords));
+    vec3 specular = light.specular * spec * vec3(texture(material.texture_specular1, TexCoords));
 
     return (ambient + diffuse + specular);
 }
@@ -82,9 +82,9 @@ vec3 ComputePointLight(PointLight light, vec3 norm, vec3 viewDir, vec3 fragPos)
     float diff = max(dot(norm, lightDir), 0.0);
     float spec = pow(max(dot(viewDir, reflectDir), 0.0), material.shininess);
 
-    vec3 ambient = light.ambient * vec3(texture(material.diffuse, TexCoords));
-    vec3 diffuse = light.diffuse * diff * vec3(texture(material.diffuse, TexCoords));
-    vec3 specular = light.specular * spec * vec3(texture(material.specular, TexCoords));
+    vec3 ambient = light.ambient * vec3(texture(material.texture_diffuse1, TexCoords));
+    vec3 diffuse = light.diffuse * diff * vec3(texture(material.texture_diffuse1, TexCoords));
+    vec3 specular = light.specular * spec * vec3(texture(material.texture_specular1, TexCoords));
 
     return (ambient * attenuation + diffuse * attenuation + specular * attenuation);
 }
@@ -103,9 +103,9 @@ vec3 ComputeSpotLight(SpotLight light, vec3 norm, vec3 viewDir, vec3 fragPos) {
     float diff = max(dot(norm, lightDir), 0.0);
     float spec = pow(max(dot(viewDir, reflectDir), 0.0), material.shininess);
 
-    vec3 ambient = light.ambient * vec3(texture(material.diffuse, TexCoords));
-    vec3 diffuse = light.diffuse * diff * vec3(texture(material.diffuse, TexCoords));
-    vec3 specular = light.specular * spec * vec3(texture(material.specular, TexCoords));
+    vec3 ambient = light.ambient * vec3(texture(material.texture_diffuse1, TexCoords));
+    vec3 diffuse = light.diffuse * diff * vec3(texture(material.texture_diffuse1, TexCoords));
+    vec3 specular = light.specular * spec * vec3(texture(material.texture_specular1, TexCoords));
 
     // we leave ambient alone so there's always a little light
     return ((ambient * attenuation) + (diffuse * intensity * attenuation) + (specular * intensity * attenuation));

shaders/lighting_vertex.glsl

@@ -1,4 +1,4 @@
-#version 330 core
+#version 430 core
 layout (location = 0) in vec3 aPos;
 layout (location = 1) in vec3 aNormal;
 layout (location = 2) in vec2 aTexCoords;

shaders/skybox_fragment.glsl

@@ -0,0 +1,12 @@
+#version 430 core
+
+out vec4 FragColor;
+
+in vec3 TexCoords;
+
+uniform samplerCube texture_cubemap1;
+
+void main()
+{    
+    FragColor = texture(texture_cubemap1, TexCoords);
+}

shaders/skybox_vertex.glsl

@@ -0,0 +1,15 @@
+#version 430 core
+layout (location = 0) in vec3 aPos;
+
+out vec3 TexCoords;
+
+uniform mat4 view;
+uniform mat4 projection;
+
+
+void main()
+{
+	vec4 pos = projection * view * vec4(aPos, 1.0);
+    gl_Position = pos.xyww;
+    TexCoords = aPos;
+}

src/common.cpp

@@ -4,7 +4,7 @@
 #include <cerrno>
 
 
-Errno read_entire_file(FILE *f, char **out_data)
+Errno read_entire_file(FILE *f, char **out_data, bool null_terminate)
 {
     long saved = ftell(f);
     if (saved < 0) return errno;
@@ -24,7 +24,7 @@ Errno read_entire_file(FILE *f, char **out_data)
         return errno;
     }
 
-    data[size] = 0;
+    if (null_terminate) data[size] = 0;
     *out_data = data;
 
     return 0;

src/common.hpp

@@ -5,4 +5,4 @@
 typedef int Errno;
 
 
-Errno read_entire_file(FILE *f, char **out_data);
+Errno read_entire_file(FILE *f, char **out_data, bool null_terminate);

src/defer.hpp

@@ -0,0 +1,7 @@
+#include "scope_guard.hpp"
+
+#define __$CONCAT(a,b) a ## b
+#define _$CONCAT(a, b) __$CONCAT(a, b)
+
+#define guard(M_fn) auto _$CONCAT(__defer__, __LINE__) = (sg::make_scope_guard((M_fn)));
+#define defer(M_stmt) auto _$CONCAT(__defer__, __LINE__) = (sg::make_scope_guard([&](void) -> void { M_stmt ; }));

src/main.cpp

@@ -1,14 +1,19 @@
 #include <cstdio>
 #include <iostream>
 #include <functional>
+#include <utility>
+#include <vector>
 #include "camera.hpp"
+#include "glm/glm/ext/matrix_float4x4.hpp"
+#include "mesh.hpp"
+#include "primitives.hpp"
 #include "shader.hpp"
+#include "texture.hpp"
+#include "vendor/stb_image.h"
 #include "vendor/glad/glad.h"
 #include "vendor/glm/glm/ext/matrix_transform.hpp"
 #define GLFW_INCLUDE_NONE
 #include <GLFW/glfw3.h>
-#define QOI_IMPLEMENTATION
-#include "vendor/qoi.h"
 
 #include "vendor/glm/glm/vec3.hpp"
 #include "vendor/glm/glm/vec4.hpp"
@@ -21,20 +26,23 @@
 std::function<void(int width, int height)> framebuffer_size_callback = nullptr;
 std::function<void(double x, double y)> cursor_position_callback = nullptr;
 
+
+void GLAPIENTRY gl_message_callback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar* message, const void* userParam)
+{
+    fprintf(stderr, "OPENGL MESSAGE: %s\n", message);
+    if (type == GL_DEBUG_TYPE_ERROR) {
+        fprintf(stderr, "exiting due to gl error above...\n");
+        exit(1);
+    }
+}
+
 int main()
 {
-    qoi_desc fish_desc;
-    void *fish_rgba = qoi_read("assets/container2.qoi", &fish_desc, 4);
-
-    qoi_desc fish_map_desc;
-    void *fish_map_rgba = qoi_read("assets/container2_specular.qoi", &fish_map_desc, 4);
-
-
     if (!glfwInit()) {
         return 1;
     }
 
-    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
     glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
     glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
 
@@ -45,7 +53,7 @@ int main()
 
     glfwMakeContextCurrent(window);
     gladLoadGL();
-    glfwSwapInterval(1);
+    glfwSwapInterval(0);
 
     glfwSetFramebufferSizeCallback(window, [](GLFWwindow *_, int width, int height) {
         if (framebuffer_size_callback) {
@@ -61,66 +69,10 @@ int main()
     });
 
     glEnable(GL_DEPTH_TEST);
+    glEnable(GL_CULL_FACE);
+    glEnable(GL_DEBUG_OUTPUT);
+    glDebugMessageCallback(gl_message_callback, NULL);
 
-    float cube_verts[] = {
-        // positions          // normals           // texture coords
-        -0.5f, -0.5f, -0.5f,  0.0f,  0.0f, -1.0f,  0.0f, 0.0f,
-        0.5f, -0.5f, -0.5f,  0.0f,  0.0f, -1.0f,  1.0f, 0.0f,
-        0.5f,  0.5f, -0.5f,  0.0f,  0.0f, -1.0f,  1.0f, 1.0f,
-        0.5f,  0.5f, -0.5f,  0.0f,  0.0f, -1.0f,  1.0f, 1.0f,
-        -0.5f,  0.5f, -0.5f,  0.0f,  0.0f, -1.0f,  0.0f, 1.0f,
-        -0.5f, -0.5f, -0.5f,  0.0f,  0.0f, -1.0f,  0.0f, 0.0f,
-
-        -0.5f, -0.5f,  0.5f,  0.0f,  0.0f, 1.0f,   0.0f, 0.0f,
-        0.5f, -0.5f,  0.5f,  0.0f,  0.0f, 1.0f,   1.0f, 0.0f,
-        0.5f,  0.5f,  0.5f,  0.0f,  0.0f, 1.0f,   1.0f, 1.0f,
-        0.5f,  0.5f,  0.5f,  0.0f,  0.0f, 1.0f,   1.0f, 1.0f,
-        -0.5f,  0.5f,  0.5f,  0.0f,  0.0f, 1.0f,   0.0f, 1.0f,
-        -0.5f, -0.5f,  0.5f,  0.0f,  0.0f, 1.0f,   0.0f, 0.0f,
-
-        -0.5f,  0.5f,  0.5f, -1.0f,  0.0f,  0.0f,  1.0f, 0.0f,
-        -0.5f,  0.5f, -0.5f, -1.0f,  0.0f,  0.0f,  1.0f, 1.0f,
-        -0.5f, -0.5f, -0.5f, -1.0f,  0.0f,  0.0f,  0.0f, 1.0f,
-        -0.5f, -0.5f, -0.5f, -1.0f,  0.0f,  0.0f,  0.0f, 1.0f,
-        -0.5f, -0.5f,  0.5f, -1.0f,  0.0f,  0.0f,  0.0f, 0.0f,
-        -0.5f,  0.5f,  0.5f, -1.0f,  0.0f,  0.0f,  1.0f, 0.0f,
-
-        0.5f,  0.5f,  0.5f,  1.0f,  0.0f,  0.0f,  1.0f, 0.0f,
-        0.5f,  0.5f, -0.5f,  1.0f,  0.0f,  0.0f,  1.0f, 1.0f,
-        0.5f, -0.5f, -0.5f,  1.0f,  0.0f,  0.0f,  0.0f, 1.0f,
-        0.5f, -0.5f, -0.5f,  1.0f,  0.0f,  0.0f,  0.0f, 1.0f,
-        0.5f, -0.5f,  0.5f,  1.0f,  0.0f,  0.0f,  0.0f, 0.0f,
-        0.5f,  0.5f,  0.5f,  1.0f,  0.0f,  0.0f,  1.0f, 0.0f,
-
-        -0.5f, -0.5f, -0.5f,  0.0f, -1.0f,  0.0f,  0.0f, 1.0f,
-        0.5f, -0.5f, -0.5f,  0.0f, -1.0f,  0.0f,  1.0f, 1.0f,
-        0.5f, -0.5f,  0.5f,  0.0f, -1.0f,  0.0f,  1.0f, 0.0f,
-        0.5f, -0.5f,  0.5f,  0.0f, -1.0f,  0.0f,  1.0f, 0.0f,
-        -0.5f, -0.5f,  0.5f,  0.0f, -1.0f,  0.0f,  0.0f, 0.0f,
-        -0.5f, -0.5f, -0.5f,  0.0f, -1.0f,  0.0f,  0.0f, 1.0f,
-
-        -0.5f,  0.5f, -0.5f,  0.0f,  1.0f,  0.0f,  0.0f, 1.0f,
-        0.5f,  0.5f, -0.5f,  0.0f,  1.0f,  0.0f,  1.0f, 1.0f,
-        0.5f,  0.5f,  0.5f,  0.0f,  1.0f,  0.0f,  1.0f, 0.0f,
-        0.5f,  0.5f,  0.5f,  0.0f,  1.0f,  0.0f,  1.0f, 0.0f,
-        -0.5f,  0.5f,  0.5f,  0.0f,  1.0f,  0.0f,  0.0f, 0.0f,
-        -0.5f,  0.5f, -0.5f,  0.0f,  1.0f,  0.0f,  0.0f, 1.0f
-    };
-
-    // positions all containers
-    glm::vec3 cube_positions[] = {
-        glm::vec3( 0.0f,  0.0f,  0.0f),
-        glm::vec3( 2.0f,  5.0f, -15.0f),
-        glm::vec3(-1.5f, -2.2f, -2.5f),
-        glm::vec3(-3.8f, -2.0f, -12.3f),
-        glm::vec3( 2.4f, -0.4f, -3.5f),
-        glm::vec3(-1.7f,  3.0f, -7.5f),
-        glm::vec3( 1.3f, -2.0f, -2.5f),
-        glm::vec3( 1.5f,  2.0f, -2.5f),
-        glm::vec3( 1.5f,  0.2f, -1.5f),
-        glm::vec3(-1.3f,  1.0f, -1.5f)
-    };
-    // positions of the point lights
     glm::vec3 point_light_positions[] = {
         glm::vec3( 0.7f,  0.2f,  2.0f),
         glm::vec3( 2.3f, -3.3f, -4.0f),
@@ -128,52 +80,8 @@ int main()
         glm::vec3( 0.0f,  0.0f, -3.0f)
     };
 
-    unsigned int fish_texture;
-    glGenTextures(1, &fish_texture);
-    glBindTexture(GL_TEXTURE_2D, fish_texture);
-    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, fish_desc.width, fish_desc.height, 0, GL_RGBA, GL_UNSIGNED_BYTE, fish_rgba);
-    glGenerateMipmap(GL_TEXTURE_2D);
-
-    unsigned int fish_map_texture;
-    glGenTextures(1, &fish_map_texture);
-    glBindTexture(GL_TEXTURE_2D, fish_map_texture);
-    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, fish_map_desc.width, fish_map_desc.height, 0, GL_RGBA, GL_UNSIGNED_BYTE, fish_map_rgba);
-    glGenerateMipmap(GL_TEXTURE_2D);
-
-    unsigned int lighting_program = create_program("shaders/lighting_vertex.glsl", "shaders/lighting_fragment.glsl");
-    unsigned int light_cube_program = create_program("shaders/light_cube_vertex.glsl", "shaders/light_cube_fragment.glsl");
-
-    unsigned int cube_buffer = 0;
-    glGenBuffers(1, &cube_buffer);
-    glBindBuffer(GL_ARRAY_BUFFER, cube_buffer);
-    glBufferData(GL_ARRAY_BUFFER, sizeof(cube_verts), &cube_verts, GL_STATIC_DRAW);
-
-    unsigned int object_vao;
-    glGenVertexArrays(1, &object_vao);
-    glBindVertexArray(object_vao);
-
-    glBindBuffer(GL_ARRAY_BUFFER, cube_buffer);
-
-    // position
-    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (const void*)0);
-    glEnableVertexAttribArray(0);
-    // normal
-    glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (const void*)(3 * sizeof(float)));
-    glEnableVertexAttribArray(1);
-    // texture coord
-    glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (const void*)(6 * sizeof(float)));
-    glEnableVertexAttribArray(2);
-
-    unsigned int light_source_vao;
-    glGenVertexArrays(1, &light_source_vao);
-    glBindVertexArray(light_source_vao);
-
-    glBindBuffer(GL_ARRAY_BUFFER, cube_buffer);
-
-    // position
-    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (const void*)0);
-    glEnableVertexAttribArray(0);
-
+    unsigned int lit_program = create_program("shaders/lighting_vertex.glsl", "shaders/lighting_fragment.glsl");
+    unsigned int skybox_program = create_program("shaders/skybox_vertex.glsl", "shaders/skybox_fragment.glsl");
 
     glm::mat4 projection = glm::mat4(1.0f);
     Camera camera;
@@ -187,6 +95,41 @@ int main()
         camera.process_mouse(x, y);
     };
 
+
+    std::vector<Mesh> meshes;
+    load_model_from_file(meshes, "./assets/model/backpack.obj");
+    for (auto &mesh : meshes) {
+        mesh.init();
+    }
+
+    unsigned int skybox_vao, skybox_cubemap_texture;
+    {
+        unsigned int skybox_vbo;
+
+        std::vector<const char *> files = {
+            "./assets/cubemap/px.png",
+            "./assets/cubemap/nx.png",
+            "./assets/cubemap/py.png",
+            "./assets/cubemap/ny.png",
+            "./assets/cubemap/pz.png",
+            "./assets/cubemap/nz.png"
+        };
+        skybox_cubemap_texture = cubemap_from_files(files);
+
+        glGenVertexArrays(1, &skybox_vao);
+        glGenBuffers(1, &skybox_vbo);
+
+        glBindVertexArray(skybox_vao);
+
+        glBindBuffer(GL_ARRAY_BUFFER, skybox_vbo);
+        glBufferData(GL_ARRAY_BUFFER, skybox_verts.size() * sizeof(float), &skybox_verts[0], GL_STATIC_DRAW);
+
+        glEnableVertexAttribArray(0);
+        glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)0);
+
+        glBindVertexArray(0);
+    }
+
     float delta_time = 0.0f;
     float last_frame_time = 0.0f;
 
@@ -220,87 +163,81 @@ int main()
         {
             /* lit objects */
             {
-                glActiveTexture(GL_TEXTURE0);
-                glBindTexture(GL_TEXTURE_2D, fish_texture);
-                glActiveTexture (GL_TEXTURE1);
-                glBindTexture(GL_TEXTURE_2D, fish_map_texture);
+                glUseProgram(lit_program);
+                program_set(lit_program, "model", glm::scale(glm::translate(glm::mat4(1.0), glm::vec3(0.0, 0.0, 0.0)), glm::vec3(1.0, 1.0, 1.0)));
+                program_set(lit_program, "projection", projection);
+                program_set(lit_program, "view", camera.view);
+                program_set(lit_program, "viewPos", camera.position);
 
-                glUseProgram(lighting_program);
-                glBindVertexArray(object_vao);
+                program_set(lit_program, "material.shininess", 32.0f);
 
-                program_set(lighting_program, "projection", projection);
-                program_set(lighting_program, "view", camera.view);
-                program_set(lighting_program, "viewPos", camera.position);
-
-                program_set(lighting_program, "material.shininess", 32.0f);
-
-                program_set(lighting_program, "directionalLight.direction", -0.2f, -1.0f, -0.3f);
-                program_set(lighting_program, "directionalLight.ambient", 0.05f, 0.05f, 0.05f);
-                program_set(lighting_program, "directionalLight.diffuse", 0.4f, 0.4f, 0.4f);
-                program_set(lighting_program, "directionalLight.specular", 0.5f, 0.5f, 0.5f);
+                program_set(lit_program, "directionalLight.direction", -0.2f, -1.0f, -0.3f);
+                program_set(lit_program, "directionalLight.ambient", 0.05f, 0.05f, 0.05f);
+                program_set(lit_program, "directionalLight.diffuse", 0.4f, 0.4f, 0.4f);
+                program_set(lit_program, "directionalLight.specular", 0.5f, 0.5f, 0.5f);
                 // point light 1
-                program_set(lighting_program, "pointLights[0].position", point_light_positions[0]);
-                program_set(lighting_program, "pointLights[0].ambient", 0.05f, 0.05f, 0.05f);
-                program_set(lighting_program, "pointLights[0].diffuse", 0.8f, 0.8f, 0.8f);
-                program_set(lighting_program, "pointLights[0].specular", 1.0f, 1.0f, 1.0f);
-                program_set(lighting_program, "pointLights[0].constant", 1.0f);
-                program_set(lighting_program, "pointLights[0].linear", 0.09f);
-                program_set(lighting_program, "pointLights[0].quadratic", 0.032f);
+                program_set(lit_program, "pointLights[0].position", point_light_positions[0]);
+                program_set(lit_program, "pointLights[0].ambient", 0.05f, 0.05f, 0.05f);
+                program_set(lit_program, "pointLights[0].diffuse", 0.8f, 0.8f, 0.8f);
+                program_set(lit_program, "pointLights[0].specular", 1.0f, 1.0f, 1.0f);
+                program_set(lit_program, "pointLights[0].constant", 1.0f);
+                program_set(lit_program, "pointLights[0].linear", 0.09f);
+                program_set(lit_program, "pointLights[0].quadratic", 0.032f);
                 // point light 2
-                program_set(lighting_program, "pointLights[1].position", point_light_positions[1]);
-                program_set(lighting_program, "pointLights[1].ambient", 0.05f, 0.05f, 0.05f);
-                program_set(lighting_program, "pointLights[1].diffuse", 0.8f, 0.8f, 0.8f);
-                program_set(lighting_program, "pointLights[1].specular", 1.0f, 1.0f, 1.0f);
-                program_set(lighting_program, "pointLights[1].constant", 1.0f);
-                program_set(lighting_program, "pointLights[1].linear", 0.09f);
-                program_set(lighting_program, "pointLights[1].quadratic", 0.032f);
+                program_set(lit_program, "pointLights[1].position", point_light_positions[1]);
+                program_set(lit_program, "pointLights[1].ambient", 0.05f, 0.05f, 0.05f);
+                program_set(lit_program, "pointLights[1].diffuse", 0.8f, 0.8f, 0.8f);
+                program_set(lit_program, "pointLights[1].specular", 1.0f, 1.0f, 1.0f);
+                program_set(lit_program, "pointLights[1].constant", 1.0f);
+                program_set(lit_program, "pointLights[1].linear", 0.09f);
+                program_set(lit_program, "pointLights[1].quadratic", 0.032f);
                 // point light 3
-                program_set(lighting_program, "pointLights[2].position", point_light_positions[2]);
-                program_set(lighting_program, "pointLights[2].ambient", 0.05f, 0.05f, 0.05f);
-                program_set(lighting_program, "pointLights[2].diffuse", 0.8f, 0.8f, 0.8f);
-                program_set(lighting_program, "pointLights[2].specular", 1.0f, 1.0f, 1.0f);
-                program_set(lighting_program, "pointLights[2].constant", 1.0f);
-                program_set(lighting_program, "pointLights[2].linear", 0.09f);
-                program_set(lighting_program, "pointLights[2].quadratic", 0.032f);
+                program_set(lit_program, "pointLights[2].position", point_light_positions[2]);
+                program_set(lit_program, "pointLights[2].ambient", 0.05f, 0.05f, 0.05f);
+                program_set(lit_program, "pointLights[2].diffuse", 0.8f, 0.8f, 0.8f);
+                program_set(lit_program, "pointLights[2].specular", 1.0f, 1.0f, 1.0f);
+                program_set(lit_program, "pointLights[2].constant", 1.0f);
+                program_set(lit_program, "pointLights[2].linear", 0.09f);
+                program_set(lit_program, "pointLights[2].quadratic", 0.032f);
                 // point light 4
-                program_set(lighting_program, "pointLights[3].position", point_light_positions[3]);
-                program_set(lighting_program, "pointLights[3].ambient", 0.05f, 0.05f, 0.05f);
-                program_set(lighting_program, "pointLights[3].diffuse", 0.8f, 0.8f, 0.8f);
-                program_set(lighting_program, "pointLights[3].specular", 1.0f, 1.0f, 1.0f);
-                program_set(lighting_program, "pointLights[3].constant", 1.0f);
-                program_set(lighting_program, "pointLights[3].linear", 0.09f);
-                program_set(lighting_program, "pointLights[3].quadratic", 0.032f);
+                program_set(lit_program, "pointLights[3].position", point_light_positions[3]);
+                program_set(lit_program, "pointLights[3].ambient", 0.05f, 0.05f, 0.05f);
+                program_set(lit_program, "pointLights[3].diffuse", 0.8f, 0.8f, 0.8f);
+                program_set(lit_program, "pointLights[3].specular", 1.0f, 1.0f, 1.0f);
+                program_set(lit_program, "pointLights[3].constant", 1.0f);
+                program_set(lit_program, "pointLights[3].linear", 0.09f);
+                program_set(lit_program, "pointLights[3].quadratic", 0.032f);
                 // spot light
-                program_set(lighting_program, "spotLight.position", camera.position);
-                program_set(lighting_program, "spotLight.direction", camera.front);
-                program_set(lighting_program, "spotLight.ambient", 0.0f, 0.0f, 0.0f);
-                program_set(lighting_program, "spotLight.diffuse", 1.0f, 1.0f, 1.0f);
-                program_set(lighting_program, "spotLight.specular", 1.0f, 1.0f, 1.0f);
-                program_set(lighting_program, "spotLight.constant", 1.0f);
-                program_set(lighting_program, "spotLight.linear", 0.09f);
-                program_set(lighting_program, "spotLight.quadratic", 0.032f);
-                program_set(lighting_program, "spotLight.cutOff", glm::cos(glm::radians(12.5f)));
-                program_set(lighting_program, "spotLight.outerCutOff", glm::cos(glm::radians(15.0f)));
+                program_set(lit_program, "spotLight.position", camera.position);
+                program_set(lit_program, "spotLight.direction", camera.front);
+                program_set(lit_program, "spotLight.ambient", 0.0f, 0.0f, 0.0f);
+                program_set(lit_program, "spotLight.diffuse", 1.0f, 1.0f, 1.0f);
+                program_set(lit_program, "spotLight.specular", 1.0f, 1.0f, 1.0f);
+                program_set(lit_program, "spotLight.constant", 1.0f);
+                program_set(lit_program, "spotLight.linear", 0.09f);
+                program_set(lit_program, "spotLight.quadratic", 0.032f);
+                program_set(lit_program, "spotLight.cutOff", glm::cos(glm::radians(12.5f)));
+                program_set(lit_program, "spotLight.outerCutOff", glm::cos(glm::radians(15.0f)));
 
-
-                for (int i = 0; i < 10; i++) {
-                    program_set(lighting_program, "model", glm::rotate(glm::translate(glm::mat4(1.0f), cube_positions[i]), glm::radians(20.0f * i), glm::vec3(1.0f, 0.3f, 0.5f)));
-                    glDrawArrays(GL_TRIANGLES, 0, 36);
+                for (const auto &mesh : meshes) {
+                    mesh.draw(lit_program);
                 }
             }
 
-            /* lamp object */
+            /* skybox */
             {
-                glUseProgram(light_cube_program);
-                glBindVertexArray(light_source_vao);
+                glDepthFunc(GL_LEQUAL);
 
-                program_set(light_cube_program, "view", camera.view);
-                program_set(light_cube_program, "projection", projection);
-
-                for (int i = 0; i < 4; i++) {
-                    program_set(light_cube_program, "model", glm::scale(glm::translate(glm::mat4(1.0f), point_light_positions[i]), glm::vec3(0.2f)));
+                glUseProgram(skybox_program);
+                glBindVertexArray(skybox_vao);
+                glActiveTexture(GL_TEXTURE0);
+                glBindTexture(GL_TEXTURE_CUBE_MAP, skybox_cubemap_texture);
+                program_set(skybox_program, "projection", projection);
+                program_set(skybox_program, "view", glm::mat4(glm::mat3(camera.view)));
+                program_set(skybox_program, "texture_cubemap1", 0);
                 glDrawArrays(GL_TRIANGLES, 0, 36);
-                }
+
+                glDepthFunc(GL_LESS);
             }
         }
 

src/mesh.cpp

@@ -0,0 +1,165 @@
+#include "texture.hpp"
+#include "vendor/glad/glad.h"
+#include <assimp/Importer.hpp>
+#include <assimp/material.h>
+#include <assimp/mesh.h>
+#include <assimp/scene.h>
+#include <assimp/postprocess.h>
+#include <assimp/types.h>
+#include <assimp/vector2.h>
+#include <assimp/vector3.h>
+#include <iostream>
+#include <unordered_map>
+#include <chrono>
+#include <vector>
+#include "mesh.hpp"
+#include "shader.hpp"
+
+
+void Mesh::init()
+{
+    glGenVertexArrays(1, &vao);
+    glGenBuffers(1, &vertices_vbo);
+
+    glBindVertexArray(vao);
+
+
+    glBindBuffer(GL_ARRAY_BUFFER, vertices_vbo);
+    glBufferData(GL_ARRAY_BUFFER, vertices.size() * sizeof(Vertex), &vertices[0], GL_STATIC_DRAW);
+
+    glGenBuffers(1, &indicies_ebo);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indicies_ebo);
+    glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicies.size() * sizeof(unsigned int), &indicies[0], GL_STATIC_DRAW);
+
+    glEnableVertexAttribArray(0);
+    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)offsetof(Vertex, position));
+
+    glEnableVertexAttribArray(1);
+    glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)offsetof(Vertex, normal));
+
+    glEnableVertexAttribArray(2);
+    glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)offsetof(Vertex, textureCoords));
+
+
+    glBindVertexArray(0);
+}
+
+void Mesh::draw(unsigned int program_id) const
+{
+    unsigned int diffuse_number = 1;
+    unsigned int specular_number = 1;
+
+    for (unsigned int i = 0; i < textures.size(); i++) {
+        const Texture &texture = textures[i];
+        
+        glActiveTexture(GL_TEXTURE0 + i);
+
+        if (texture.type == "texture_diffuse") {
+            program_set(program_id, ("material.texture_diffuse" + std::to_string(diffuse_number++)).c_str(), static_cast<int>(i));
+        } else if (texture.type == "texture_specular") {
+            program_set(program_id, ("material.texture_specular" + std::to_string(specular_number++)).c_str(), static_cast<int>(i));
+        }
+
+        glBindTexture(GL_TEXTURE_2D, texture.id);
+    }
+
+    glBindVertexArray(vao);
+    glDrawElements(GL_TRIANGLES, indicies.size(), GL_UNSIGNED_INT, 0);
+    glBindVertexArray(0);
+
+    glActiveTexture(GL_TEXTURE0);
+}
+
+
+static std::unordered_map<std::string, Texture> file_path_to_loaded_texture_cache;
+static void load_material_textures(std::vector<Texture> &out_textures, const aiMaterial *material, const aiTextureType texture_type, const char *type_name, const std::string &texture_root_directory)
+{
+    unsigned int texture_count = aiGetMaterialTextureCount(material, texture_type);
+
+    out_textures.reserve(texture_count);
+
+    for (unsigned int i = 0; i < texture_count; i++) {
+        aiString filename;
+        material->GetTexture(texture_type, i, &filename);
+        std::string path = texture_root_directory + "/" + filename.C_Str();
+
+        auto it = file_path_to_loaded_texture_cache.find(path);
+        if (it != file_path_to_loaded_texture_cache.end()) {
+            Texture texture = it->second;
+            out_textures.push_back(texture);
+            continue;
+        }
+
+        unsigned int texture_id = texture_from_file(path.c_str());
+
+        Texture texture = out_textures.emplace_back(texture_id, type_name);
+
+        file_path_to_loaded_texture_cache[path] = texture;
+    }
+}
+
+static void visit_node_process_mesh(const aiScene *scene, const aiMesh *mesh, const std::string *texture_root_directory, std::vector<Mesh> &out_meshes)
+{
+    auto &out_mesh = out_meshes.emplace_back();
+
+    std::vector<Vertex> &vertices = out_mesh.vertices;
+    std::vector<Texture> &textures = out_mesh.textures;
+    std::vector<unsigned int> &indicies = out_mesh.indicies;
+
+    vertices.reserve(mesh->mNumVertices);
+    for (unsigned int i = 0; i < mesh->mNumVertices; i++) {
+        const aiVector3D vertex = mesh->mVertices[i];
+        const aiVector3D normal = mesh->mNormals[i];
+        const aiVector3D *textureCoords = mesh->mTextureCoords[0];
+        vertices.emplace_back(
+            glm::vec3(vertex.x, vertex.y, vertex.z),
+            glm::vec3(normal.x, normal.y, normal.z),
+            textureCoords ? glm::vec2(textureCoords[i].x, textureCoords[i].y) : glm::vec2(0.0, 0.0)
+        );
+    }
+
+    for (unsigned int i = 0; i < mesh->mNumFaces; i++) {
+        aiFace face = mesh->mFaces[i];
+        for (unsigned int j = 0; j < face.mNumIndices; j++) {
+            indicies.push_back(face.mIndices[j]);
+        }
+    }
+
+    if (mesh->mMaterialIndex >= 0) {
+        aiMaterial *material = scene->mMaterials[mesh->mMaterialIndex];
+        load_material_textures(textures, material, aiTextureType_DIFFUSE, "texture_diffuse", *texture_root_directory);
+        load_material_textures(textures, material, aiTextureType_SPECULAR, "texture_specular", *texture_root_directory);
+    }
+}
+
+static void visit_node(aiNode *node, const aiScene *scene, std::string *texture_root_directory, std::vector<Mesh> &out_meshes)
+{
+    for (unsigned int i = 0; i < node->mNumMeshes; i++) {
+        const aiMesh *mesh = scene->mMeshes[node->mMeshes[i]];
+        visit_node_process_mesh(scene, mesh, texture_root_directory, out_meshes);
+    }
+
+    for (unsigned int i = 0; i < node->mNumChildren; i++) {
+        visit_node(node->mChildren[i], scene, texture_root_directory, out_meshes);
+    }
+}
+
+void load_model_from_file(std::vector<Mesh> &out_meshes, const std::string &path)
+{
+    auto t1 = std::chrono::high_resolution_clock::now();
+
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(path, aiProcess_Triangulate | aiProcess_GenSmoothNormals | aiProcess_ValidateDataStructure | aiProcess_OptimizeMeshes | aiProcess_OptimizeGraph);
+    if (!scene || scene->mFlags & AI_SCENE_FLAGS_INCOMPLETE || !scene->mRootNode) {
+        std::cerr << "load_model_from_file: assimp importer failed to read model: " << importer.GetErrorString() << std::endl;
+        return;
+    }
+
+    std::string texture_root_directory = path.substr(0, path.find_last_of('/'));
+    visit_node(scene->mRootNode, scene, &texture_root_directory, out_meshes);
+
+    auto t2 = std::chrono::high_resolution_clock::now();
+    std::chrono::duration<double, std::milli> delta = t2 - t1;
+
+    printf("processed %ld meshes in %fms\n", out_meshes.size(), delta.count());
+}

src/mesh.hpp

@@ -0,0 +1,32 @@
+#pragma once
+
+#include <string>
+#include <vector>
+#include "vendor/glm/glm/vec2.hpp"
+#include "vendor/glm/glm/vec3.hpp"
+
+struct Vertex {
+    glm::vec3 position;
+    glm::vec3 normal;
+    glm::vec2 textureCoords;
+};
+
+struct Texture {
+    unsigned int id;
+    std::string type;
+};
+
+struct Mesh {
+    std::vector<Vertex> vertices;
+    std::vector<Texture> textures;
+    std::vector<unsigned int> indicies;
+    bool use_indicies = true;
+
+    unsigned int vao, vertices_vbo, indicies_ebo;
+
+    void init();
+    void draw(unsigned int program_id) const;
+};
+
+
+void load_model_from_file(std::vector<Mesh> &out_meshes, const std::string &path);

src/primitives.cpp

@@ -0,0 +1,45 @@
+#include "primitives.hpp"
+
+const std::vector<float> skybox_verts = {
+    -1.0f,  1.0f, -1.0f,
+    -1.0f, -1.0f, -1.0f,
+     1.0f, -1.0f, -1.0f,
+     1.0f, -1.0f, -1.0f,
+     1.0f,  1.0f, -1.0f,
+    -1.0f,  1.0f, -1.0f,
+
+    -1.0f, -1.0f,  1.0f,
+    -1.0f, -1.0f, -1.0f,
+    -1.0f,  1.0f, -1.0f,
+    -1.0f,  1.0f, -1.0f,
+    -1.0f,  1.0f,  1.0f,
+    -1.0f, -1.0f,  1.0f,
+
+     1.0f, -1.0f, -1.0f,
+     1.0f, -1.0f,  1.0f,
+     1.0f,  1.0f,  1.0f,
+     1.0f,  1.0f,  1.0f,
+     1.0f,  1.0f, -1.0f,
+     1.0f, -1.0f, -1.0f,
+
+    -1.0f, -1.0f,  1.0f,
+    -1.0f,  1.0f,  1.0f,
+     1.0f,  1.0f,  1.0f,
+     1.0f,  1.0f,  1.0f,
+     1.0f, -1.0f,  1.0f,
+    -1.0f, -1.0f,  1.0f,
+
+    -1.0f,  1.0f, -1.0f,
+     1.0f,  1.0f, -1.0f,
+     1.0f,  1.0f,  1.0f,
+     1.0f,  1.0f,  1.0f,
+    -1.0f,  1.0f,  1.0f,
+    -1.0f,  1.0f, -1.0f,
+
+    -1.0f, -1.0f, -1.0f,
+    -1.0f, -1.0f,  1.0f,
+     1.0f, -1.0f, -1.0f,
+     1.0f, -1.0f, -1.0f,
+    -1.0f, -1.0f,  1.0f,
+     1.0f, -1.0f,  1.0f
+};

src/primitives.hpp

@@ -0,0 +1,5 @@
+#pragma once
+
+#include <vector>
+
+extern const std::vector<float> skybox_verts;

src/shader.cpp

@@ -1,6 +1,7 @@
 #include "shader.hpp"
 #include "common.hpp"
 #include "vendor/glad/glad.h"
+#include "defer.hpp"
 #include <cstdio>
 #include <cstring>
 #include <cerrno>
@@ -66,42 +67,39 @@ unsigned int create_program_source(const char *vertex_shader_source, const char
 
 unsigned int create_program(const char *vertex_shader_path, const char *fragment_shader_path)
 {
-    FILE *vertex_shader_file, *fragment_shader_file = NULL;
-    char *vertex_shader_source = NULL;
-    char *fragment_shader_source = NULL;
     Errno err = 0;
-    unsigned int ret = 0;
 
-    vertex_shader_file = fopen(vertex_shader_path, "r");
+    FILE *vertex_shader_file = fopen(vertex_shader_path, "r");
+    defer(if (vertex_shader_file) fclose(vertex_shader_file));
     if (!vertex_shader_file) {
         fprintf(stderr, "create_program: failed to open vertex shader file (%s): %s\n", vertex_shader_path, strerror(errno));
-        goto done;
+        return 0;
     }
-    err = read_entire_file(vertex_shader_file, &vertex_shader_source);
+
+    char *vertex_shader_source = NULL;
+    defer(free(vertex_shader_source));
+    err = read_entire_file(vertex_shader_file, &vertex_shader_source, true);
     if (err) {
         fprintf(stderr, "create_program: failed to read vertex shader file (%s): %s\n", vertex_shader_path, strerror(err));
-        goto done;
+        return 0;
     }
 
-    fragment_shader_file = fopen(fragment_shader_path, "r");
+    FILE *fragment_shader_file = fopen(fragment_shader_path, "r");
+    defer(if (fragment_shader_file) fclose(fragment_shader_file));
     if (!fragment_shader_file) {
         fprintf(stderr, "create_program: failed to open fragment shader file (%s): %s\n", fragment_shader_path, strerror(errno));
-        goto done;
+        return 0;
     }
-    err = read_entire_file(fragment_shader_file, &fragment_shader_source);
+
+    char *fragment_shader_source = NULL;
+    defer(free(fragment_shader_source));
+    err = read_entire_file(fragment_shader_file, &fragment_shader_source, true);
     if (err) {
         fprintf(stderr, "create_program: failed to read fragment shader file (%s): %s\n", fragment_shader_path, strerror(err));
-        goto done;
+        return 0;
     }
 
-    ret = create_program_source(vertex_shader_source, fragment_shader_source);
-
-done:
-    if (vertex_shader_file) fclose(vertex_shader_file);
-    if (fragment_shader_file) fclose(fragment_shader_file);
-    if (vertex_shader_source) free(vertex_shader_source);
-    if (fragment_shader_source) free(fragment_shader_source);
-    return ret;
+    return create_program_source(vertex_shader_source, fragment_shader_source);
 }
 
 void program_set(unsigned int program, const char *uniform, int value)
@@ -109,6 +107,11 @@ void program_set(unsigned int program, const char *uniform, int value)
     glUniform1i(glGetUniformLocation(program, uniform), value); 
 }
 
+void program_set(unsigned int program, const char *uniform, unsigned int value)
+{
+    glUniform1ui(glGetUniformLocation(program, uniform), value); 
+}
+
 void program_set(unsigned int program, const char *uniform, float value)
 {
     glUniform1f(glGetUniformLocation(program, uniform), value); 

src/shader.hpp

@@ -5,6 +5,7 @@
 
 unsigned int create_program(const char *vertex_shader_path, const char *fragment_shader_path);
 void program_set(unsigned int program, const char *uniform, int value);
+void program_set(unsigned int program, const char *uniform, unsigned int value);
 void program_set(unsigned int program, const char *uniform, float value);
 void program_set(unsigned int program, const char *uniform, glm::vec3 vec);
 void program_set(unsigned int program, const char *uniform, float x, float y, float z);

src/stb_image_impl.cpp

@@ -0,0 +1,11 @@
+#define STB_IMAGE_IMPLEMENTATION
+// #define STBI_NO_JPEG
+// #define STBI_NO_PNG
+#define STBI_NO_BMP
+#define STBI_NO_PSD
+#define STBI_NO_TGA
+#define STBI_NO_GIF
+// #define STBI_NO_HDR
+#define STBI_NO_PIC
+#define STBI_NO_PNM
+#include "vendor/stb_image.h"

src/texture.cpp

@@ -0,0 +1,71 @@
+#include "texture.hpp"
+#include "defer.hpp"
+#include "common.hpp"
+#include "vendor/glad/glad.h"
+#include "vendor/stb_image.h"
+#include <cerrno>
+#include <cstdio>
+#include <cstdlib>
+#include <iostream>
+#include <vector>
+
+
+unsigned int texture_from_file(const char *path)
+{
+    printf("texture_from_file: load %s\n", path);
+
+    int x, y;
+    unsigned char *data = stbi_load(path, &x, &y, NULL, 4);
+    defer(stbi_image_free(data));
+    if (!data) {
+        fprintf(stderr, "texture_from_file: failed to load %s\n", path);
+        return 0;
+    }
+
+    unsigned int texture;
+    glGenTextures(1, &texture);
+    glBindTexture(GL_TEXTURE_2D, texture);
+
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
+
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, x, y, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
+    glGenerateMipmap(GL_TEXTURE_2D);
+
+    glBindTexture(GL_TEXTURE_2D, 0);
+
+    return texture;
+}
+
+unsigned int cubemap_from_files(std::vector<const char *> &faces)
+{
+    unsigned int texture;
+    glGenTextures(1, &texture);
+    glBindTexture(GL_TEXTURE_CUBE_MAP, texture);
+
+    int width, height = 0;
+    unsigned char *data = NULL;
+    for (unsigned int i = 0; i < faces.size(); i++) {
+        printf("cubemap_from_files: load %s\n", faces[i]);
+
+        data = stbi_load(faces[i], &width, &height, NULL, 3);
+        defer(stbi_image_free(data));
+
+        if (data) {
+            glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
+        } else {
+            fprintf(stderr, "cubemap_from_files: failed to load file %s\n", faces[i]);
+        }
+    }
+
+    glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+    glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+    glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
+
+    return texture;
+}

src/texture.hpp

@@ -0,0 +1,8 @@
+#pragma once
+
+#include <string_view>
+#include <vector>
+
+
+unsigned int texture_from_file(const char *path);
+unsigned int cubemap_from_files(std::vector<const char *> &faces);

src/vendor/glad/glad.c

@@ -1,10 +1,10 @@
 /*
 
-    OpenGL loader generated by glad 0.1.34 on Thu Jun 29 15:12:42 2023.
+    OpenGL loader generated by glad 0.1.34 on Mon Aug 28 15:56:17 2023.
 
     Language/Generator: C/C++
     Specification: gl
-    APIs: gl=3.3
+    APIs: gl=4.3
     Profile: core
     Extensions:
         
@@ -14,9 +14,9 @@
     Reproducible: False
 
     Commandline:
-        --profile="core" --api="gl=3.3" --generator="c" --spec="gl" --extensions=""
+        --profile="core" --api="gl=4.3" --generator="c" --spec="gl" --extensions=""
     Online:
-        https://glad.dav1d.de/#profile=core&language=c&specification=gl&loader=on&api=gl%3D3.3
+        https://glad.dav1d.de/#profile=core&language=c&specification=gl&loader=on&api=gl%3D4.3
 */
 
 #include <stdio.h>
@@ -267,10 +267,16 @@ int GLAD_GL_VERSION_3_0 = 0;
 int GLAD_GL_VERSION_3_1 = 0;
 int GLAD_GL_VERSION_3_2 = 0;
 int GLAD_GL_VERSION_3_3 = 0;
+int GLAD_GL_VERSION_4_0 = 0;
+int GLAD_GL_VERSION_4_1 = 0;
+int GLAD_GL_VERSION_4_2 = 0;
+int GLAD_GL_VERSION_4_3 = 0;
+PFNGLACTIVESHADERPROGRAMPROC glad_glActiveShaderProgram = NULL;
 PFNGLACTIVETEXTUREPROC glad_glActiveTexture = NULL;
 PFNGLATTACHSHADERPROC glad_glAttachShader = NULL;
 PFNGLBEGINCONDITIONALRENDERPROC glad_glBeginConditionalRender = NULL;
 PFNGLBEGINQUERYPROC glad_glBeginQuery = NULL;
+PFNGLBEGINQUERYINDEXEDPROC glad_glBeginQueryIndexed = NULL;
 PFNGLBEGINTRANSFORMFEEDBACKPROC glad_glBeginTransformFeedback = NULL;
 PFNGLBINDATTRIBLOCATIONPROC glad_glBindAttribLocation = NULL;
 PFNGLBINDBUFFERPROC glad_glBindBuffer = NULL;
@@ -279,27 +285,38 @@ PFNGLBINDBUFFERRANGEPROC glad_glBindBufferRange = NULL;
 PFNGLBINDFRAGDATALOCATIONPROC glad_glBindFragDataLocation = NULL;
 PFNGLBINDFRAGDATALOCATIONINDEXEDPROC glad_glBindFragDataLocationIndexed = NULL;
 PFNGLBINDFRAMEBUFFERPROC glad_glBindFramebuffer = NULL;
+PFNGLBINDIMAGETEXTUREPROC glad_glBindImageTexture = NULL;
+PFNGLBINDPROGRAMPIPELINEPROC glad_glBindProgramPipeline = NULL;
 PFNGLBINDRENDERBUFFERPROC glad_glBindRenderbuffer = NULL;
 PFNGLBINDSAMPLERPROC glad_glBindSampler = NULL;
 PFNGLBINDTEXTUREPROC glad_glBindTexture = NULL;
+PFNGLBINDTRANSFORMFEEDBACKPROC glad_glBindTransformFeedback = NULL;
 PFNGLBINDVERTEXARRAYPROC glad_glBindVertexArray = NULL;
+PFNGLBINDVERTEXBUFFERPROC glad_glBindVertexBuffer = NULL;
 PFNGLBLENDCOLORPROC glad_glBlendColor = NULL;
 PFNGLBLENDEQUATIONPROC glad_glBlendEquation = NULL;
 PFNGLBLENDEQUATIONSEPARATEPROC glad_glBlendEquationSeparate = NULL;
+PFNGLBLENDEQUATIONSEPARATEIPROC glad_glBlendEquationSeparatei = NULL;
+PFNGLBLENDEQUATIONIPROC glad_glBlendEquationi = NULL;
 PFNGLBLENDFUNCPROC glad_glBlendFunc = NULL;
 PFNGLBLENDFUNCSEPARATEPROC glad_glBlendFuncSeparate = NULL;
+PFNGLBLENDFUNCSEPARATEIPROC glad_glBlendFuncSeparatei = NULL;
+PFNGLBLENDFUNCIPROC glad_glBlendFunci = NULL;
 PFNGLBLITFRAMEBUFFERPROC glad_glBlitFramebuffer = NULL;
 PFNGLBUFFERDATAPROC glad_glBufferData = NULL;
 PFNGLBUFFERSUBDATAPROC glad_glBufferSubData = NULL;
 PFNGLCHECKFRAMEBUFFERSTATUSPROC glad_glCheckFramebufferStatus = NULL;
 PFNGLCLAMPCOLORPROC glad_glClampColor = NULL;
 PFNGLCLEARPROC glad_glClear = NULL;
+PFNGLCLEARBUFFERDATAPROC glad_glClearBufferData = NULL;
+PFNGLCLEARBUFFERSUBDATAPROC glad_glClearBufferSubData = NULL;
 PFNGLCLEARBUFFERFIPROC glad_glClearBufferfi = NULL;
 PFNGLCLEARBUFFERFVPROC glad_glClearBufferfv = NULL;
 PFNGLCLEARBUFFERIVPROC glad_glClearBufferiv = NULL;
 PFNGLCLEARBUFFERUIVPROC glad_glClearBufferuiv = NULL;
 PFNGLCLEARCOLORPROC glad_glClearColor = NULL;
 PFNGLCLEARDEPTHPROC glad_glClearDepth = NULL;
+PFNGLCLEARDEPTHFPROC glad_glClearDepthf = NULL;
 PFNGLCLEARSTENCILPROC glad_glClearStencil = NULL;
 PFNGLCLIENTWAITSYNCPROC glad_glClientWaitSync = NULL;
 PFNGLCOLORMASKPROC glad_glColorMask = NULL;
@@ -316,6 +333,7 @@ PFNGLCOMPRESSEDTEXSUBIMAGE1DPROC glad_glCompressedTexSubImage1D = NULL;
 PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC glad_glCompressedTexSubImage2D = NULL;
 PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC glad_glCompressedTexSubImage3D = NULL;
 PFNGLCOPYBUFFERSUBDATAPROC glad_glCopyBufferSubData = NULL;
+PFNGLCOPYIMAGESUBDATAPROC glad_glCopyImageSubData = NULL;
 PFNGLCOPYTEXIMAGE1DPROC glad_glCopyTexImage1D = NULL;
 PFNGLCOPYTEXIMAGE2DPROC glad_glCopyTexImage2D = NULL;
 PFNGLCOPYTEXSUBIMAGE1DPROC glad_glCopyTexSubImage1D = NULL;
@@ -323,44 +341,66 @@ PFNGLCOPYTEXSUBIMAGE2DPROC glad_glCopyTexSubImage2D = NULL;
 PFNGLCOPYTEXSUBIMAGE3DPROC glad_glCopyTexSubImage3D = NULL;
 PFNGLCREATEPROGRAMPROC glad_glCreateProgram = NULL;
 PFNGLCREATESHADERPROC glad_glCreateShader = NULL;
+PFNGLCREATESHADERPROGRAMVPROC glad_glCreateShaderProgramv = NULL;
 PFNGLCULLFACEPROC glad_glCullFace = NULL;
+PFNGLDEBUGMESSAGECALLBACKPROC glad_glDebugMessageCallback = NULL;
+PFNGLDEBUGMESSAGECONTROLPROC glad_glDebugMessageControl = NULL;
+PFNGLDEBUGMESSAGEINSERTPROC glad_glDebugMessageInsert = NULL;
 PFNGLDELETEBUFFERSPROC glad_glDeleteBuffers = NULL;
 PFNGLDELETEFRAMEBUFFERSPROC glad_glDeleteFramebuffers = NULL;
 PFNGLDELETEPROGRAMPROC glad_glDeleteProgram = NULL;
+PFNGLDELETEPROGRAMPIPELINESPROC glad_glDeleteProgramPipelines = NULL;
 PFNGLDELETEQUERIESPROC glad_glDeleteQueries = NULL;
 PFNGLDELETERENDERBUFFERSPROC glad_glDeleteRenderbuffers = NULL;
 PFNGLDELETESAMPLERSPROC glad_glDeleteSamplers = NULL;
 PFNGLDELETESHADERPROC glad_glDeleteShader = NULL;
 PFNGLDELETESYNCPROC glad_glDeleteSync = NULL;
 PFNGLDELETETEXTURESPROC glad_glDeleteTextures = NULL;
+PFNGLDELETETRANSFORMFEEDBACKSPROC glad_glDeleteTransformFeedbacks = NULL;
 PFNGLDELETEVERTEXARRAYSPROC glad_glDeleteVertexArrays = NULL;
 PFNGLDEPTHFUNCPROC glad_glDepthFunc = NULL;
 PFNGLDEPTHMASKPROC glad_glDepthMask = NULL;
 PFNGLDEPTHRANGEPROC glad_glDepthRange = NULL;
+PFNGLDEPTHRANGEARRAYVPROC glad_glDepthRangeArrayv = NULL;
+PFNGLDEPTHRANGEINDEXEDPROC glad_glDepthRangeIndexed = NULL;
+PFNGLDEPTHRANGEFPROC glad_glDepthRangef = NULL;
 PFNGLDETACHSHADERPROC glad_glDetachShader = NULL;
 PFNGLDISABLEPROC glad_glDisable = NULL;
 PFNGLDISABLEVERTEXATTRIBARRAYPROC glad_glDisableVertexAttribArray = NULL;
 PFNGLDISABLEIPROC glad_glDisablei = NULL;
+PFNGLDISPATCHCOMPUTEPROC glad_glDispatchCompute = NULL;
+PFNGLDISPATCHCOMPUTEINDIRECTPROC glad_glDispatchComputeIndirect = NULL;
 PFNGLDRAWARRAYSPROC glad_glDrawArrays = NULL;
+PFNGLDRAWARRAYSINDIRECTPROC glad_glDrawArraysIndirect = NULL;
 PFNGLDRAWARRAYSINSTANCEDPROC glad_glDrawArraysInstanced = NULL;
+PFNGLDRAWARRAYSINSTANCEDBASEINSTANCEPROC glad_glDrawArraysInstancedBaseInstance = NULL;
 PFNGLDRAWBUFFERPROC glad_glDrawBuffer = NULL;
 PFNGLDRAWBUFFERSPROC glad_glDrawBuffers = NULL;
 PFNGLDRAWELEMENTSPROC glad_glDrawElements = NULL;
 PFNGLDRAWELEMENTSBASEVERTEXPROC glad_glDrawElementsBaseVertex = NULL;
+PFNGLDRAWELEMENTSINDIRECTPROC glad_glDrawElementsIndirect = NULL;
 PFNGLDRAWELEMENTSINSTANCEDPROC glad_glDrawElementsInstanced = NULL;
+PFNGLDRAWELEMENTSINSTANCEDBASEINSTANCEPROC glad_glDrawElementsInstancedBaseInstance = NULL;
 PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC glad_glDrawElementsInstancedBaseVertex = NULL;
+PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEPROC glad_glDrawElementsInstancedBaseVertexBaseInstance = NULL;
 PFNGLDRAWRANGEELEMENTSPROC glad_glDrawRangeElements = NULL;
 PFNGLDRAWRANGEELEMENTSBASEVERTEXPROC glad_glDrawRangeElementsBaseVertex = NULL;
+PFNGLDRAWTRANSFORMFEEDBACKPROC glad_glDrawTransformFeedback = NULL;
+PFNGLDRAWTRANSFORMFEEDBACKINSTANCEDPROC glad_glDrawTransformFeedbackInstanced = NULL;
+PFNGLDRAWTRANSFORMFEEDBACKSTREAMPROC glad_glDrawTransformFeedbackStream = NULL;
+PFNGLDRAWTRANSFORMFEEDBACKSTREAMINSTANCEDPROC glad_glDrawTransformFeedbackStreamInstanced = NULL;
 PFNGLENABLEPROC glad_glEnable = NULL;
 PFNGLENABLEVERTEXATTRIBARRAYPROC glad_glEnableVertexAttribArray = NULL;
 PFNGLENABLEIPROC glad_glEnablei = NULL;
 PFNGLENDCONDITIONALRENDERPROC glad_glEndConditionalRender = NULL;
 PFNGLENDQUERYPROC glad_glEndQuery = NULL;
+PFNGLENDQUERYINDEXEDPROC glad_glEndQueryIndexed = NULL;
 PFNGLENDTRANSFORMFEEDBACKPROC glad_glEndTransformFeedback = NULL;
 PFNGLFENCESYNCPROC glad_glFenceSync = NULL;
 PFNGLFINISHPROC glad_glFinish = NULL;
 PFNGLFLUSHPROC glad_glFlush = NULL;
 PFNGLFLUSHMAPPEDBUFFERRANGEPROC glad_glFlushMappedBufferRange = NULL;
+PFNGLFRAMEBUFFERPARAMETERIPROC glad_glFramebufferParameteri = NULL;
 PFNGLFRAMEBUFFERRENDERBUFFERPROC glad_glFramebufferRenderbuffer = NULL;
 PFNGLFRAMEBUFFERTEXTUREPROC glad_glFramebufferTexture = NULL;
 PFNGLFRAMEBUFFERTEXTURE1DPROC glad_glFramebufferTexture1D = NULL;
@@ -370,13 +410,19 @@ PFNGLFRAMEBUFFERTEXTURELAYERPROC glad_glFramebufferTextureLayer = NULL;
 PFNGLFRONTFACEPROC glad_glFrontFace = NULL;
 PFNGLGENBUFFERSPROC glad_glGenBuffers = NULL;
 PFNGLGENFRAMEBUFFERSPROC glad_glGenFramebuffers = NULL;
+PFNGLGENPROGRAMPIPELINESPROC glad_glGenProgramPipelines = NULL;
 PFNGLGENQUERIESPROC glad_glGenQueries = NULL;
 PFNGLGENRENDERBUFFERSPROC glad_glGenRenderbuffers = NULL;
 PFNGLGENSAMPLERSPROC glad_glGenSamplers = NULL;
 PFNGLGENTEXTURESPROC glad_glGenTextures = NULL;
+PFNGLGENTRANSFORMFEEDBACKSPROC glad_glGenTransformFeedbacks = NULL;
 PFNGLGENVERTEXARRAYSPROC glad_glGenVertexArrays = NULL;
 PFNGLGENERATEMIPMAPPROC glad_glGenerateMipmap = NULL;
+PFNGLGETACTIVEATOMICCOUNTERBUFFERIVPROC glad_glGetActiveAtomicCounterBufferiv = NULL;
 PFNGLGETACTIVEATTRIBPROC glad_glGetActiveAttrib = NULL;
+PFNGLGETACTIVESUBROUTINENAMEPROC glad_glGetActiveSubroutineName = NULL;
+PFNGLGETACTIVESUBROUTINEUNIFORMNAMEPROC glad_glGetActiveSubroutineUniformName = NULL;
+PFNGLGETACTIVESUBROUTINEUNIFORMIVPROC glad_glGetActiveSubroutineUniformiv = NULL;
 PFNGLGETACTIVEUNIFORMPROC glad_glGetActiveUniform = NULL;
 PFNGLGETACTIVEUNIFORMBLOCKNAMEPROC glad_glGetActiveUniformBlockName = NULL;
 PFNGLGETACTIVEUNIFORMBLOCKIVPROC glad_glGetActiveUniformBlockiv = NULL;
@@ -391,19 +437,39 @@ PFNGLGETBUFFERPARAMETERIVPROC glad_glGetBufferParameteriv = NULL;
 PFNGLGETBUFFERPOINTERVPROC glad_glGetBufferPointerv = NULL;
 PFNGLGETBUFFERSUBDATAPROC glad_glGetBufferSubData = NULL;
 PFNGLGETCOMPRESSEDTEXIMAGEPROC glad_glGetCompressedTexImage = NULL;
+PFNGLGETDEBUGMESSAGELOGPROC glad_glGetDebugMessageLog = NULL;
+PFNGLGETDOUBLEI_VPROC glad_glGetDoublei_v = NULL;
 PFNGLGETDOUBLEVPROC glad_glGetDoublev = NULL;
 PFNGLGETERRORPROC glad_glGetError = NULL;
+PFNGLGETFLOATI_VPROC glad_glGetFloati_v = NULL;
 PFNGLGETFLOATVPROC glad_glGetFloatv = NULL;
 PFNGLGETFRAGDATAINDEXPROC glad_glGetFragDataIndex = NULL;
 PFNGLGETFRAGDATALOCATIONPROC glad_glGetFragDataLocation = NULL;
 PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC glad_glGetFramebufferAttachmentParameteriv = NULL;
+PFNGLGETFRAMEBUFFERPARAMETERIVPROC glad_glGetFramebufferParameteriv = NULL;
 PFNGLGETINTEGER64I_VPROC glad_glGetInteger64i_v = NULL;
 PFNGLGETINTEGER64VPROC glad_glGetInteger64v = NULL;
 PFNGLGETINTEGERI_VPROC glad_glGetIntegeri_v = NULL;
 PFNGLGETINTEGERVPROC glad_glGetIntegerv = NULL;
+PFNGLGETINTERNALFORMATI64VPROC glad_glGetInternalformati64v = NULL;
+PFNGLGETINTERNALFORMATIVPROC glad_glGetInternalformativ = NULL;
 PFNGLGETMULTISAMPLEFVPROC glad_glGetMultisamplefv = NULL;
+PFNGLGETOBJECTLABELPROC glad_glGetObjectLabel = NULL;
+PFNGLGETOBJECTPTRLABELPROC glad_glGetObjectPtrLabel = NULL;
+PFNGLGETPOINTERVPROC glad_glGetPointerv = NULL;
+PFNGLGETPROGRAMBINARYPROC glad_glGetProgramBinary = NULL;
 PFNGLGETPROGRAMINFOLOGPROC glad_glGetProgramInfoLog = NULL;
+PFNGLGETPROGRAMINTERFACEIVPROC glad_glGetProgramInterfaceiv = NULL;
+PFNGLGETPROGRAMPIPELINEINFOLOGPROC glad_glGetProgramPipelineInfoLog = NULL;
+PFNGLGETPROGRAMPIPELINEIVPROC glad_glGetProgramPipelineiv = NULL;
+PFNGLGETPROGRAMRESOURCEINDEXPROC glad_glGetProgramResourceIndex = NULL;
+PFNGLGETPROGRAMRESOURCELOCATIONPROC glad_glGetProgramResourceLocation = NULL;
+PFNGLGETPROGRAMRESOURCELOCATIONINDEXPROC glad_glGetProgramResourceLocationIndex = NULL;
+PFNGLGETPROGRAMRESOURCENAMEPROC glad_glGetProgramResourceName = NULL;
+PFNGLGETPROGRAMRESOURCEIVPROC glad_glGetProgramResourceiv = NULL;
+PFNGLGETPROGRAMSTAGEIVPROC glad_glGetProgramStageiv = NULL;
 PFNGLGETPROGRAMIVPROC glad_glGetProgramiv = NULL;
+PFNGLGETQUERYINDEXEDIVPROC glad_glGetQueryIndexediv = NULL;
 PFNGLGETQUERYOBJECTI64VPROC glad_glGetQueryObjecti64v = NULL;
 PFNGLGETQUERYOBJECTIVPROC glad_glGetQueryObjectiv = NULL;
 PFNGLGETQUERYOBJECTUI64VPROC glad_glGetQueryObjectui64v = NULL;
@@ -415,10 +481,13 @@ PFNGLGETSAMPLERPARAMETERIUIVPROC glad_glGetSamplerParameterIuiv = NULL;
 PFNGLGETSAMPLERPARAMETERFVPROC glad_glGetSamplerParameterfv = NULL;
 PFNGLGETSAMPLERPARAMETERIVPROC glad_glGetSamplerParameteriv = NULL;
 PFNGLGETSHADERINFOLOGPROC glad_glGetShaderInfoLog = NULL;
+PFNGLGETSHADERPRECISIONFORMATPROC glad_glGetShaderPrecisionFormat = NULL;
 PFNGLGETSHADERSOURCEPROC glad_glGetShaderSource = NULL;
 PFNGLGETSHADERIVPROC glad_glGetShaderiv = NULL;
 PFNGLGETSTRINGPROC glad_glGetString = NULL;
 PFNGLGETSTRINGIPROC glad_glGetStringi = NULL;
+PFNGLGETSUBROUTINEINDEXPROC glad_glGetSubroutineIndex = NULL;
+PFNGLGETSUBROUTINEUNIFORMLOCATIONPROC glad_glGetSubroutineUniformLocation = NULL;
 PFNGLGETSYNCIVPROC glad_glGetSynciv = NULL;
 PFNGLGETTEXIMAGEPROC glad_glGetTexImage = NULL;
 PFNGLGETTEXLEVELPARAMETERFVPROC glad_glGetTexLevelParameterfv = NULL;
@@ -431,36 +500,51 @@ PFNGLGETTRANSFORMFEEDBACKVARYINGPROC glad_glGetTransformFeedbackVarying = NULL;
 PFNGLGETUNIFORMBLOCKINDEXPROC glad_glGetUniformBlockIndex = NULL;
 PFNGLGETUNIFORMINDICESPROC glad_glGetUniformIndices = NULL;
 PFNGLGETUNIFORMLOCATIONPROC glad_glGetUniformLocation = NULL;
+PFNGLGETUNIFORMSUBROUTINEUIVPROC glad_glGetUniformSubroutineuiv = NULL;
+PFNGLGETUNIFORMDVPROC glad_glGetUniformdv = NULL;
 PFNGLGETUNIFORMFVPROC glad_glGetUniformfv = NULL;
 PFNGLGETUNIFORMIVPROC glad_glGetUniformiv = NULL;
 PFNGLGETUNIFORMUIVPROC glad_glGetUniformuiv = NULL;
 PFNGLGETVERTEXATTRIBIIVPROC glad_glGetVertexAttribIiv = NULL;
 PFNGLGETVERTEXATTRIBIUIVPROC glad_glGetVertexAttribIuiv = NULL;
+PFNGLGETVERTEXATTRIBLDVPROC glad_glGetVertexAttribLdv = NULL;
 PFNGLGETVERTEXATTRIBPOINTERVPROC glad_glGetVertexAttribPointerv = NULL;
 PFNGLGETVERTEXATTRIBDVPROC glad_glGetVertexAttribdv = NULL;
 PFNGLGETVERTEXATTRIBFVPROC glad_glGetVertexAttribfv = NULL;
 PFNGLGETVERTEXATTRIBIVPROC glad_glGetVertexAttribiv = NULL;
 PFNGLHINTPROC glad_glHint = NULL;
+PFNGLINVALIDATEBUFFERDATAPROC glad_glInvalidateBufferData = NULL;
+PFNGLINVALIDATEBUFFERSUBDATAPROC glad_glInvalidateBufferSubData = NULL;
+PFNGLINVALIDATEFRAMEBUFFERPROC glad_glInvalidateFramebuffer = NULL;
+PFNGLINVALIDATESUBFRAMEBUFFERPROC glad_glInvalidateSubFramebuffer = NULL;
+PFNGLINVALIDATETEXIMAGEPROC glad_glInvalidateTexImage = NULL;
+PFNGLINVALIDATETEXSUBIMAGEPROC glad_glInvalidateTexSubImage = NULL;
 PFNGLISBUFFERPROC glad_glIsBuffer = NULL;
 PFNGLISENABLEDPROC glad_glIsEnabled = NULL;
 PFNGLISENABLEDIPROC glad_glIsEnabledi = NULL;
 PFNGLISFRAMEBUFFERPROC glad_glIsFramebuffer = NULL;
 PFNGLISPROGRAMPROC glad_glIsProgram = NULL;
+PFNGLISPROGRAMPIPELINEPROC glad_glIsProgramPipeline = NULL;
 PFNGLISQUERYPROC glad_glIsQuery = NULL;
 PFNGLISRENDERBUFFERPROC glad_glIsRenderbuffer = NULL;
 PFNGLISSAMPLERPROC glad_glIsSampler = NULL;
 PFNGLISSHADERPROC glad_glIsShader = NULL;
 PFNGLISSYNCPROC glad_glIsSync = NULL;
 PFNGLISTEXTUREPROC glad_glIsTexture = NULL;
+PFNGLISTRANSFORMFEEDBACKPROC glad_glIsTransformFeedback = NULL;
 PFNGLISVERTEXARRAYPROC glad_glIsVertexArray = NULL;
 PFNGLLINEWIDTHPROC glad_glLineWidth = NULL;
 PFNGLLINKPROGRAMPROC glad_glLinkProgram = NULL;
 PFNGLLOGICOPPROC glad_glLogicOp = NULL;
 PFNGLMAPBUFFERPROC glad_glMapBuffer = NULL;
 PFNGLMAPBUFFERRANGEPROC glad_glMapBufferRange = NULL;
+PFNGLMEMORYBARRIERPROC glad_glMemoryBarrier = NULL;
+PFNGLMINSAMPLESHADINGPROC glad_glMinSampleShading = NULL;
 PFNGLMULTIDRAWARRAYSPROC glad_glMultiDrawArrays = NULL;
+PFNGLMULTIDRAWARRAYSINDIRECTPROC glad_glMultiDrawArraysIndirect = NULL;
 PFNGLMULTIDRAWELEMENTSPROC glad_glMultiDrawElements = NULL;
 PFNGLMULTIDRAWELEMENTSBASEVERTEXPROC glad_glMultiDrawElementsBaseVertex = NULL;
+PFNGLMULTIDRAWELEMENTSINDIRECTPROC glad_glMultiDrawElementsIndirect = NULL;
 PFNGLMULTITEXCOORDP1UIPROC glad_glMultiTexCoordP1ui = NULL;
 PFNGLMULTITEXCOORDP1UIVPROC glad_glMultiTexCoordP1uiv = NULL;
 PFNGLMULTITEXCOORDP2UIPROC glad_glMultiTexCoordP2ui = NULL;
@@ -471,6 +555,11 @@ PFNGLMULTITEXCOORDP4UIPROC glad_glMultiTexCoordP4ui = NULL;
 PFNGLMULTITEXCOORDP4UIVPROC glad_glMultiTexCoordP4uiv = NULL;
 PFNGLNORMALP3UIPROC glad_glNormalP3ui = NULL;
 PFNGLNORMALP3UIVPROC glad_glNormalP3uiv = NULL;
+PFNGLOBJECTLABELPROC glad_glObjectLabel = NULL;
+PFNGLOBJECTPTRLABELPROC glad_glObjectPtrLabel = NULL;
+PFNGLPATCHPARAMETERFVPROC glad_glPatchParameterfv = NULL;
+PFNGLPATCHPARAMETERIPROC glad_glPatchParameteri = NULL;
+PFNGLPAUSETRANSFORMFEEDBACKPROC glad_glPauseTransformFeedback = NULL;
 PFNGLPIXELSTOREFPROC glad_glPixelStoref = NULL;
 PFNGLPIXELSTOREIPROC glad_glPixelStorei = NULL;
 PFNGLPOINTPARAMETERFPROC glad_glPointParameterf = NULL;
@@ -480,13 +569,69 @@ PFNGLPOINTPARAMETERIVPROC glad_glPointParameteriv = NULL;
 PFNGLPOINTSIZEPROC glad_glPointSize = NULL;
 PFNGLPOLYGONMODEPROC glad_glPolygonMode = NULL;
 PFNGLPOLYGONOFFSETPROC glad_glPolygonOffset = NULL;
+PFNGLPOPDEBUGGROUPPROC glad_glPopDebugGroup = NULL;
 PFNGLPRIMITIVERESTARTINDEXPROC glad_glPrimitiveRestartIndex = NULL;
+PFNGLPROGRAMBINARYPROC glad_glProgramBinary = NULL;
+PFNGLPROGRAMPARAMETERIPROC glad_glProgramParameteri = NULL;
+PFNGLPROGRAMUNIFORM1DPROC glad_glProgramUniform1d = NULL;
+PFNGLPROGRAMUNIFORM1DVPROC glad_glProgramUniform1dv = NULL;
+PFNGLPROGRAMUNIFORM1FPROC glad_glProgramUniform1f = NULL;
+PFNGLPROGRAMUNIFORM1FVPROC glad_glProgramUniform1fv = NULL;
+PFNGLPROGRAMUNIFORM1IPROC glad_glProgramUniform1i = NULL;
+PFNGLPROGRAMUNIFORM1IVPROC glad_glProgramUniform1iv = NULL;
+PFNGLPROGRAMUNIFORM1UIPROC glad_glProgramUniform1ui = NULL;
+PFNGLPROGRAMUNIFORM1UIVPROC glad_glProgramUniform1uiv = NULL;
+PFNGLPROGRAMUNIFORM2DPROC glad_glProgramUniform2d = NULL;
+PFNGLPROGRAMUNIFORM2DVPROC glad_glProgramUniform2dv = NULL;
+PFNGLPROGRAMUNIFORM2FPROC glad_glProgramUniform2f = NULL;
+PFNGLPROGRAMUNIFORM2FVPROC glad_glProgramUniform2fv = NULL;
+PFNGLPROGRAMUNIFORM2IPROC glad_glProgramUniform2i = NULL;
+PFNGLPROGRAMUNIFORM2IVPROC glad_glProgramUniform2iv = NULL;
+PFNGLPROGRAMUNIFORM2UIPROC glad_glProgramUniform2ui = NULL;
+PFNGLPROGRAMUNIFORM2UIVPROC glad_glProgramUniform2uiv = NULL;
+PFNGLPROGRAMUNIFORM3DPROC glad_glProgramUniform3d = NULL;
+PFNGLPROGRAMUNIFORM3DVPROC glad_glProgramUniform3dv = NULL;
+PFNGLPROGRAMUNIFORM3FPROC glad_glProgramUniform3f = NULL;
+PFNGLPROGRAMUNIFORM3FVPROC glad_glProgramUniform3fv = NULL;
+PFNGLPROGRAMUNIFORM3IPROC glad_glProgramUniform3i = NULL;
+PFNGLPROGRAMUNIFORM3IVPROC glad_glProgramUniform3iv = NULL;
+PFNGLPROGRAMUNIFORM3UIPROC glad_glProgramUniform3ui = NULL;
+PFNGLPROGRAMUNIFORM3UIVPROC glad_glProgramUniform3uiv = NULL;
+PFNGLPROGRAMUNIFORM4DPROC glad_glProgramUniform4d = NULL;
+PFNGLPROGRAMUNIFORM4DVPROC glad_glProgramUniform4dv = NULL;
+PFNGLPROGRAMUNIFORM4FPROC glad_glProgramUniform4f = NULL;
+PFNGLPROGRAMUNIFORM4FVPROC glad_glProgramUniform4fv = NULL;
+PFNGLPROGRAMUNIFORM4IPROC glad_glProgramUniform4i = NULL;
+PFNGLPROGRAMUNIFORM4IVPROC glad_glProgramUniform4iv = NULL;
+PFNGLPROGRAMUNIFORM4UIPROC glad_glProgramUniform4ui = NULL;
+PFNGLPROGRAMUNIFORM4UIVPROC glad_glProgramUniform4uiv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX2DVPROC glad_glProgramUniformMatrix2dv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX2FVPROC glad_glProgramUniformMatrix2fv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX2X3DVPROC glad_glProgramUniformMatrix2x3dv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX2X3FVPROC glad_glProgramUniformMatrix2x3fv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX2X4DVPROC glad_glProgramUniformMatrix2x4dv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX2X4FVPROC glad_glProgramUniformMatrix2x4fv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX3DVPROC glad_glProgramUniformMatrix3dv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX3FVPROC glad_glProgramUniformMatrix3fv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX3X2DVPROC glad_glProgramUniformMatrix3x2dv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX3X2FVPROC glad_glProgramUniformMatrix3x2fv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX3X4DVPROC glad_glProgramUniformMatrix3x4dv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX3X4FVPROC glad_glProgramUniformMatrix3x4fv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX4DVPROC glad_glProgramUniformMatrix4dv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX4FVPROC glad_glProgramUniformMatrix4fv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX4X2DVPROC glad_glProgramUniformMatrix4x2dv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX4X2FVPROC glad_glProgramUniformMatrix4x2fv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX4X3DVPROC glad_glProgramUniformMatrix4x3dv = NULL;
+PFNGLPROGRAMUNIFORMMATRIX4X3FVPROC glad_glProgramUniformMatrix4x3fv = NULL;
 PFNGLPROVOKINGVERTEXPROC glad_glProvokingVertex = NULL;
+PFNGLPUSHDEBUGGROUPPROC glad_glPushDebugGroup = NULL;
 PFNGLQUERYCOUNTERPROC glad_glQueryCounter = NULL;
 PFNGLREADBUFFERPROC glad_glReadBuffer = NULL;
 PFNGLREADPIXELSPROC glad_glReadPixels = NULL;
+PFNGLRELEASESHADERCOMPILERPROC glad_glReleaseShaderCompiler = NULL;
 PFNGLRENDERBUFFERSTORAGEPROC glad_glRenderbufferStorage = NULL;
 PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC glad_glRenderbufferStorageMultisample = NULL;
+PFNGLRESUMETRANSFORMFEEDBACKPROC glad_glResumeTransformFeedback = NULL;
 PFNGLSAMPLECOVERAGEPROC glad_glSampleCoverage = NULL;
 PFNGLSAMPLEMASKIPROC glad_glSampleMaski = NULL;
 PFNGLSAMPLERPARAMETERIIVPROC glad_glSamplerParameterIiv = NULL;
@@ -496,9 +641,14 @@ PFNGLSAMPLERPARAMETERFVPROC glad_glSamplerParameterfv = NULL;
 PFNGLSAMPLERPARAMETERIPROC glad_glSamplerParameteri = NULL;
 PFNGLSAMPLERPARAMETERIVPROC glad_glSamplerParameteriv = NULL;
 PFNGLSCISSORPROC glad_glScissor = NULL;
+PFNGLSCISSORARRAYVPROC glad_glScissorArrayv = NULL;
+PFNGLSCISSORINDEXEDPROC glad_glScissorIndexed = NULL;
+PFNGLSCISSORINDEXEDVPROC glad_glScissorIndexedv = NULL;
 PFNGLSECONDARYCOLORP3UIPROC glad_glSecondaryColorP3ui = NULL;
 PFNGLSECONDARYCOLORP3UIVPROC glad_glSecondaryColorP3uiv = NULL;
+PFNGLSHADERBINARYPROC glad_glShaderBinary = NULL;
 PFNGLSHADERSOURCEPROC glad_glShaderSource = NULL;
+PFNGLSHADERSTORAGEBLOCKBINDINGPROC glad_glShaderStorageBlockBinding = NULL;
 PFNGLSTENCILFUNCPROC glad_glStencilFunc = NULL;
 PFNGLSTENCILFUNCSEPARATEPROC glad_glStencilFuncSeparate = NULL;
 PFNGLSTENCILMASKPROC glad_glStencilMask = NULL;
@@ -506,6 +656,7 @@ PFNGLSTENCILMASKSEPARATEPROC glad_glStencilMaskSeparate = NULL;
 PFNGLSTENCILOPPROC glad_glStencilOp = NULL;
 PFNGLSTENCILOPSEPARATEPROC glad_glStencilOpSeparate = NULL;
 PFNGLTEXBUFFERPROC glad_glTexBuffer = NULL;
+PFNGLTEXBUFFERRANGEPROC glad_glTexBufferRange = NULL;
 PFNGLTEXCOORDP1UIPROC glad_glTexCoordP1ui = NULL;
 PFNGLTEXCOORDP1UIVPROC glad_glTexCoordP1uiv = NULL;
 PFNGLTEXCOORDP2UIPROC glad_glTexCoordP2ui = NULL;
@@ -525,28 +676,42 @@ PFNGLTEXPARAMETERFPROC glad_glTexParameterf = NULL;
 PFNGLTEXPARAMETERFVPROC glad_glTexParameterfv = NULL;
 PFNGLTEXPARAMETERIPROC glad_glTexParameteri = NULL;
 PFNGLTEXPARAMETERIVPROC glad_glTexParameteriv = NULL;
+PFNGLTEXSTORAGE1DPROC glad_glTexStorage1D = NULL;
+PFNGLTEXSTORAGE2DPROC glad_glTexStorage2D = NULL;
+PFNGLTEXSTORAGE2DMULTISAMPLEPROC glad_glTexStorage2DMultisample = NULL;
+PFNGLTEXSTORAGE3DPROC glad_glTexStorage3D = NULL;
+PFNGLTEXSTORAGE3DMULTISAMPLEPROC glad_glTexStorage3DMultisample = NULL;
 PFNGLTEXSUBIMAGE1DPROC glad_glTexSubImage1D = NULL;
 PFNGLTEXSUBIMAGE2DPROC glad_glTexSubImage2D = NULL;
 PFNGLTEXSUBIMAGE3DPROC glad_glTexSubImage3D = NULL;
+PFNGLTEXTUREVIEWPROC glad_glTextureView = NULL;
 PFNGLTRANSFORMFEEDBACKVARYINGSPROC glad_glTransformFeedbackVaryings = NULL;
+PFNGLUNIFORM1DPROC glad_glUniform1d = NULL;
+PFNGLUNIFORM1DVPROC glad_glUniform1dv = NULL;
 PFNGLUNIFORM1FPROC glad_glUniform1f = NULL;
 PFNGLUNIFORM1FVPROC glad_glUniform1fv = NULL;
 PFNGLUNIFORM1IPROC glad_glUniform1i = NULL;
 PFNGLUNIFORM1IVPROC glad_glUniform1iv = NULL;
 PFNGLUNIFORM1UIPROC glad_glUniform1ui = NULL;
 PFNGLUNIFORM1UIVPROC glad_glUniform1uiv = NULL;
+PFNGLUNIFORM2DPROC glad_glUniform2d = NULL;
+PFNGLUNIFORM2DVPROC glad_glUniform2dv = NULL;
 PFNGLUNIFORM2FPROC glad_glUniform2f = NULL;
 PFNGLUNIFORM2FVPROC glad_glUniform2fv = NULL;
 PFNGLUNIFORM2IPROC glad_glUniform2i = NULL;
 PFNGLUNIFORM2IVPROC glad_glUniform2iv = NULL;
 PFNGLUNIFORM2UIPROC glad_glUniform2ui = NULL;
 PFNGLUNIFORM2UIVPROC glad_glUniform2uiv = NULL;
+PFNGLUNIFORM3DPROC glad_glUniform3d = NULL;
+PFNGLUNIFORM3DVPROC glad_glUniform3dv = NULL;
 PFNGLUNIFORM3FPROC glad_glUniform3f = NULL;
 PFNGLUNIFORM3FVPROC glad_glUniform3fv = NULL;
 PFNGLUNIFORM3IPROC glad_glUniform3i = NULL;
 PFNGLUNIFORM3IVPROC glad_glUniform3iv = NULL;
 PFNGLUNIFORM3UIPROC glad_glUniform3ui = NULL;
 PFNGLUNIFORM3UIVPROC glad_glUniform3uiv = NULL;
+PFNGLUNIFORM4DPROC glad_glUniform4d = NULL;
+PFNGLUNIFORM4DVPROC glad_glUniform4dv = NULL;
 PFNGLUNIFORM4FPROC glad_glUniform4f = NULL;
 PFNGLUNIFORM4FVPROC glad_glUniform4fv = NULL;
 PFNGLUNIFORM4IPROC glad_glUniform4i = NULL;
@@ -554,18 +719,30 @@ PFNGLUNIFORM4IVPROC glad_glUniform4iv = NULL;
 PFNGLUNIFORM4UIPROC glad_glUniform4ui = NULL;
 PFNGLUNIFORM4UIVPROC glad_glUniform4uiv = NULL;
 PFNGLUNIFORMBLOCKBINDINGPROC glad_glUniformBlockBinding = NULL;
+PFNGLUNIFORMMATRIX2DVPROC glad_glUniformMatrix2dv = NULL;
 PFNGLUNIFORMMATRIX2FVPROC glad_glUniformMatrix2fv = NULL;
+PFNGLUNIFORMMATRIX2X3DVPROC glad_glUniformMatrix2x3dv = NULL;
 PFNGLUNIFORMMATRIX2X3FVPROC glad_glUniformMatrix2x3fv = NULL;
+PFNGLUNIFORMMATRIX2X4DVPROC glad_glUniformMatrix2x4dv = NULL;
 PFNGLUNIFORMMATRIX2X4FVPROC glad_glUniformMatrix2x4fv = NULL;
+PFNGLUNIFORMMATRIX3DVPROC glad_glUniformMatrix3dv = NULL;
 PFNGLUNIFORMMATRIX3FVPROC glad_glUniformMatrix3fv = NULL;
+PFNGLUNIFORMMATRIX3X2DVPROC glad_glUniformMatrix3x2dv = NULL;
 PFNGLUNIFORMMATRIX3X2FVPROC glad_glUniformMatrix3x2fv = NULL;
+PFNGLUNIFORMMATRIX3X4DVPROC glad_glUniformMatrix3x4dv = NULL;
 PFNGLUNIFORMMATRIX3X4FVPROC glad_glUniformMatrix3x4fv = NULL;
+PFNGLUNIFORMMATRIX4DVPROC glad_glUniformMatrix4dv = NULL;
 PFNGLUNIFORMMATRIX4FVPROC glad_glUniformMatrix4fv = NULL;
+PFNGLUNIFORMMATRIX4X2DVPROC glad_glUniformMatrix4x2dv = NULL;
 PFNGLUNIFORMMATRIX4X2FVPROC glad_glUniformMatrix4x2fv = NULL;
+PFNGLUNIFORMMATRIX4X3DVPROC glad_glUniformMatrix4x3dv = NULL;
 PFNGLUNIFORMMATRIX4X3FVPROC glad_glUniformMatrix4x3fv = NULL;
+PFNGLUNIFORMSUBROUTINESUIVPROC glad_glUniformSubroutinesuiv = NULL;
 PFNGLUNMAPBUFFERPROC glad_glUnmapBuffer = NULL;
 PFNGLUSEPROGRAMPROC glad_glUseProgram = NULL;
+PFNGLUSEPROGRAMSTAGESPROC glad_glUseProgramStages = NULL;
 PFNGLVALIDATEPROGRAMPROC glad_glValidateProgram = NULL;
+PFNGLVALIDATEPROGRAMPIPELINEPROC glad_glValidateProgramPipeline = NULL;
 PFNGLVERTEXATTRIB1DPROC glad_glVertexAttrib1d = NULL;
 PFNGLVERTEXATTRIB1DVPROC glad_glVertexAttrib1dv = NULL;
 PFNGLVERTEXATTRIB1FPROC glad_glVertexAttrib1f = NULL;
@@ -602,7 +779,9 @@ PFNGLVERTEXATTRIB4SVPROC glad_glVertexAttrib4sv = NULL;
 PFNGLVERTEXATTRIB4UBVPROC glad_glVertexAttrib4ubv = NULL;
 PFNGLVERTEXATTRIB4UIVPROC glad_glVertexAttrib4uiv = NULL;
 PFNGLVERTEXATTRIB4USVPROC glad_glVertexAttrib4usv = NULL;
+PFNGLVERTEXATTRIBBINDINGPROC glad_glVertexAttribBinding = NULL;
 PFNGLVERTEXATTRIBDIVISORPROC glad_glVertexAttribDivisor = NULL;
+PFNGLVERTEXATTRIBFORMATPROC glad_glVertexAttribFormat = NULL;
 PFNGLVERTEXATTRIBI1IPROC glad_glVertexAttribI1i = NULL;
 PFNGLVERTEXATTRIBI1IVPROC glad_glVertexAttribI1iv = NULL;
 PFNGLVERTEXATTRIBI1UIPROC glad_glVertexAttribI1ui = NULL;
@@ -623,7 +802,18 @@ PFNGLVERTEXATTRIBI4UBVPROC glad_glVertexAttribI4ubv = NULL;
 PFNGLVERTEXATTRIBI4UIPROC glad_glVertexAttribI4ui = NULL;
 PFNGLVERTEXATTRIBI4UIVPROC glad_glVertexAttribI4uiv = NULL;
 PFNGLVERTEXATTRIBI4USVPROC glad_glVertexAttribI4usv = NULL;
+PFNGLVERTEXATTRIBIFORMATPROC glad_glVertexAttribIFormat = NULL;
 PFNGLVERTEXATTRIBIPOINTERPROC glad_glVertexAttribIPointer = NULL;
+PFNGLVERTEXATTRIBL1DPROC glad_glVertexAttribL1d = NULL;
+PFNGLVERTEXATTRIBL1DVPROC glad_glVertexAttribL1dv = NULL;
+PFNGLVERTEXATTRIBL2DPROC glad_glVertexAttribL2d = NULL;
+PFNGLVERTEXATTRIBL2DVPROC glad_glVertexAttribL2dv = NULL;
+PFNGLVERTEXATTRIBL3DPROC glad_glVertexAttribL3d = NULL;
+PFNGLVERTEXATTRIBL3DVPROC glad_glVertexAttribL3dv = NULL;
+PFNGLVERTEXATTRIBL4DPROC glad_glVertexAttribL4d = NULL;
+PFNGLVERTEXATTRIBL4DVPROC glad_glVertexAttribL4dv = NULL;
+PFNGLVERTEXATTRIBLFORMATPROC glad_glVertexAttribLFormat = NULL;
+PFNGLVERTEXATTRIBLPOINTERPROC glad_glVertexAttribLPointer = NULL;
 PFNGLVERTEXATTRIBP1UIPROC glad_glVertexAttribP1ui = NULL;
 PFNGLVERTEXATTRIBP1UIVPROC glad_glVertexAttribP1uiv = NULL;
 PFNGLVERTEXATTRIBP2UIPROC glad_glVertexAttribP2ui = NULL;
@@ -633,6 +823,7 @@ PFNGLVERTEXATTRIBP3UIVPROC glad_glVertexAttribP3uiv = NULL;
 PFNGLVERTEXATTRIBP4UIPROC glad_glVertexAttribP4ui = NULL;
 PFNGLVERTEXATTRIBP4UIVPROC glad_glVertexAttribP4uiv = NULL;
 PFNGLVERTEXATTRIBPOINTERPROC glad_glVertexAttribPointer = NULL;
+PFNGLVERTEXBINDINGDIVISORPROC glad_glVertexBindingDivisor = NULL;
 PFNGLVERTEXP2UIPROC glad_glVertexP2ui = NULL;
 PFNGLVERTEXP2UIVPROC glad_glVertexP2uiv = NULL;
 PFNGLVERTEXP3UIPROC glad_glVertexP3ui = NULL;
@@ -640,6 +831,9 @@ PFNGLVERTEXP3UIVPROC glad_glVertexP3uiv = NULL;
 PFNGLVERTEXP4UIPROC glad_glVertexP4ui = NULL;
 PFNGLVERTEXP4UIVPROC glad_glVertexP4uiv = NULL;
 PFNGLVIEWPORTPROC glad_glViewport = NULL;
+PFNGLVIEWPORTARRAYVPROC glad_glViewportArrayv = NULL;
+PFNGLVIEWPORTINDEXEDFPROC glad_glViewportIndexedf = NULL;
+PFNGLVIEWPORTINDEXEDFVPROC glad_glViewportIndexedfv = NULL;
 PFNGLWAITSYNCPROC glad_glWaitSync = NULL;
 static void load_GL_VERSION_1_0(GLADloadproc load) {
 	if(!GLAD_GL_VERSION_1_0) return;
@@ -1054,6 +1248,209 @@ static void load_GL_VERSION_3_3(GLADloadproc load) {
 	glad_glSecondaryColorP3ui = (PFNGLSECONDARYCOLORP3UIPROC)load("glSecondaryColorP3ui");
 	glad_glSecondaryColorP3uiv = (PFNGLSECONDARYCOLORP3UIVPROC)load("glSecondaryColorP3uiv");
 }
+static void load_GL_VERSION_4_0(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_4_0) return;
+	glad_glMinSampleShading = (PFNGLMINSAMPLESHADINGPROC)load("glMinSampleShading");
+	glad_glBlendEquationi = (PFNGLBLENDEQUATIONIPROC)load("glBlendEquationi");
+	glad_glBlendEquationSeparatei = (PFNGLBLENDEQUATIONSEPARATEIPROC)load("glBlendEquationSeparatei");
+	glad_glBlendFunci = (PFNGLBLENDFUNCIPROC)load("glBlendFunci");
+	glad_glBlendFuncSeparatei = (PFNGLBLENDFUNCSEPARATEIPROC)load("glBlendFuncSeparatei");
+	glad_glDrawArraysIndirect = (PFNGLDRAWARRAYSINDIRECTPROC)load("glDrawArraysIndirect");
+	glad_glDrawElementsIndirect = (PFNGLDRAWELEMENTSINDIRECTPROC)load("glDrawElementsIndirect");
+	glad_glUniform1d = (PFNGLUNIFORM1DPROC)load("glUniform1d");
+	glad_glUniform2d = (PFNGLUNIFORM2DPROC)load("glUniform2d");
+	glad_glUniform3d = (PFNGLUNIFORM3DPROC)load("glUniform3d");
+	glad_glUniform4d = (PFNGLUNIFORM4DPROC)load("glUniform4d");
+	glad_glUniform1dv = (PFNGLUNIFORM1DVPROC)load("glUniform1dv");
+	glad_glUniform2dv = (PFNGLUNIFORM2DVPROC)load("glUniform2dv");
+	glad_glUniform3dv = (PFNGLUNIFORM3DVPROC)load("glUniform3dv");
+	glad_glUniform4dv = (PFNGLUNIFORM4DVPROC)load("glUniform4dv");
+	glad_glUniformMatrix2dv = (PFNGLUNIFORMMATRIX2DVPROC)load("glUniformMatrix2dv");
+	glad_glUniformMatrix3dv = (PFNGLUNIFORMMATRIX3DVPROC)load("glUniformMatrix3dv");
+	glad_glUniformMatrix4dv = (PFNGLUNIFORMMATRIX4DVPROC)load("glUniformMatrix4dv");
+	glad_glUniformMatrix2x3dv = (PFNGLUNIFORMMATRIX2X3DVPROC)load("glUniformMatrix2x3dv");
+	glad_glUniformMatrix2x4dv = (PFNGLUNIFORMMATRIX2X4DVPROC)load("glUniformMatrix2x4dv");
+	glad_glUniformMatrix3x2dv = (PFNGLUNIFORMMATRIX3X2DVPROC)load("glUniformMatrix3x2dv");
+	glad_glUniformMatrix3x4dv = (PFNGLUNIFORMMATRIX3X4DVPROC)load("glUniformMatrix3x4dv");
+	glad_glUniformMatrix4x2dv = (PFNGLUNIFORMMATRIX4X2DVPROC)load("glUniformMatrix4x2dv");
+	glad_glUniformMatrix4x3dv = (PFNGLUNIFORMMATRIX4X3DVPROC)load("glUniformMatrix4x3dv");
+	glad_glGetUniformdv = (PFNGLGETUNIFORMDVPROC)load("glGetUniformdv");
+	glad_glGetSubroutineUniformLocation = (PFNGLGETSUBROUTINEUNIFORMLOCATIONPROC)load("glGetSubroutineUniformLocation");
+	glad_glGetSubroutineIndex = (PFNGLGETSUBROUTINEINDEXPROC)load("glGetSubroutineIndex");
+	glad_glGetActiveSubroutineUniformiv = (PFNGLGETACTIVESUBROUTINEUNIFORMIVPROC)load("glGetActiveSubroutineUniformiv");
+	glad_glGetActiveSubroutineUniformName = (PFNGLGETACTIVESUBROUTINEUNIFORMNAMEPROC)load("glGetActiveSubroutineUniformName");
+	glad_glGetActiveSubroutineName = (PFNGLGETACTIVESUBROUTINENAMEPROC)load("glGetActiveSubroutineName");
+	glad_glUniformSubroutinesuiv = (PFNGLUNIFORMSUBROUTINESUIVPROC)load("glUniformSubroutinesuiv");
+	glad_glGetUniformSubroutineuiv = (PFNGLGETUNIFORMSUBROUTINEUIVPROC)load("glGetUniformSubroutineuiv");
+	glad_glGetProgramStageiv = (PFNGLGETPROGRAMSTAGEIVPROC)load("glGetProgramStageiv");
+	glad_glPatchParameteri = (PFNGLPATCHPARAMETERIPROC)load("glPatchParameteri");
+	glad_glPatchParameterfv = (PFNGLPATCHPARAMETERFVPROC)load("glPatchParameterfv");
+	glad_glBindTransformFeedback = (PFNGLBINDTRANSFORMFEEDBACKPROC)load("glBindTransformFeedback");
+	glad_glDeleteTransformFeedbacks = (PFNGLDELETETRANSFORMFEEDBACKSPROC)load("glDeleteTransformFeedbacks");
+	glad_glGenTransformFeedbacks = (PFNGLGENTRANSFORMFEEDBACKSPROC)load("glGenTransformFeedbacks");
+	glad_glIsTransformFeedback = (PFNGLISTRANSFORMFEEDBACKPROC)load("glIsTransformFeedback");
+	glad_glPauseTransformFeedback = (PFNGLPAUSETRANSFORMFEEDBACKPROC)load("glPauseTransformFeedback");
+	glad_glResumeTransformFeedback = (PFNGLRESUMETRANSFORMFEEDBACKPROC)load("glResumeTransformFeedback");
+	glad_glDrawTransformFeedback = (PFNGLDRAWTRANSFORMFEEDBACKPROC)load("glDrawTransformFeedback");
+	glad_glDrawTransformFeedbackStream = (PFNGLDRAWTRANSFORMFEEDBACKSTREAMPROC)load("glDrawTransformFeedbackStream");
+	glad_glBeginQueryIndexed = (PFNGLBEGINQUERYINDEXEDPROC)load("glBeginQueryIndexed");
+	glad_glEndQueryIndexed = (PFNGLENDQUERYINDEXEDPROC)load("glEndQueryIndexed");
+	glad_glGetQueryIndexediv = (PFNGLGETQUERYINDEXEDIVPROC)load("glGetQueryIndexediv");
+}
+static void load_GL_VERSION_4_1(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_4_1) return;
+	glad_glReleaseShaderCompiler = (PFNGLRELEASESHADERCOMPILERPROC)load("glReleaseShaderCompiler");
+	glad_glShaderBinary = (PFNGLSHADERBINARYPROC)load("glShaderBinary");
+	glad_glGetShaderPrecisionFormat = (PFNGLGETSHADERPRECISIONFORMATPROC)load("glGetShaderPrecisionFormat");
+	glad_glDepthRangef = (PFNGLDEPTHRANGEFPROC)load("glDepthRangef");
+	glad_glClearDepthf = (PFNGLCLEARDEPTHFPROC)load("glClearDepthf");
+	glad_glGetProgramBinary = (PFNGLGETPROGRAMBINARYPROC)load("glGetProgramBinary");
+	glad_glProgramBinary = (PFNGLPROGRAMBINARYPROC)load("glProgramBinary");
+	glad_glProgramParameteri = (PFNGLPROGRAMPARAMETERIPROC)load("glProgramParameteri");
+	glad_glUseProgramStages = (PFNGLUSEPROGRAMSTAGESPROC)load("glUseProgramStages");
+	glad_glActiveShaderProgram = (PFNGLACTIVESHADERPROGRAMPROC)load("glActiveShaderProgram");
+	glad_glCreateShaderProgramv = (PFNGLCREATESHADERPROGRAMVPROC)load("glCreateShaderProgramv");
+	glad_glBindProgramPipeline = (PFNGLBINDPROGRAMPIPELINEPROC)load("glBindProgramPipeline");
+	glad_glDeleteProgramPipelines = (PFNGLDELETEPROGRAMPIPELINESPROC)load("glDeleteProgramPipelines");
+	glad_glGenProgramPipelines = (PFNGLGENPROGRAMPIPELINESPROC)load("glGenProgramPipelines");
+	glad_glIsProgramPipeline = (PFNGLISPROGRAMPIPELINEPROC)load("glIsProgramPipeline");
+	glad_glGetProgramPipelineiv = (PFNGLGETPROGRAMPIPELINEIVPROC)load("glGetProgramPipelineiv");
+	glad_glProgramParameteri = (PFNGLPROGRAMPARAMETERIPROC)load("glProgramParameteri");
+	glad_glProgramUniform1i = (PFNGLPROGRAMUNIFORM1IPROC)load("glProgramUniform1i");
+	glad_glProgramUniform1iv = (PFNGLPROGRAMUNIFORM1IVPROC)load("glProgramUniform1iv");
+	glad_glProgramUniform1f = (PFNGLPROGRAMUNIFORM1FPROC)load("glProgramUniform1f");
+	glad_glProgramUniform1fv = (PFNGLPROGRAMUNIFORM1FVPROC)load("glProgramUniform1fv");
+	glad_glProgramUniform1d = (PFNGLPROGRAMUNIFORM1DPROC)load("glProgramUniform1d");
+	glad_glProgramUniform1dv = (PFNGLPROGRAMUNIFORM1DVPROC)load("glProgramUniform1dv");
+	glad_glProgramUniform1ui = (PFNGLPROGRAMUNIFORM1UIPROC)load("glProgramUniform1ui");
+	glad_glProgramUniform1uiv = (PFNGLPROGRAMUNIFORM1UIVPROC)load("glProgramUniform1uiv");
+	glad_glProgramUniform2i = (PFNGLPROGRAMUNIFORM2IPROC)load("glProgramUniform2i");
+	glad_glProgramUniform2iv = (PFNGLPROGRAMUNIFORM2IVPROC)load("glProgramUniform2iv");
+	glad_glProgramUniform2f = (PFNGLPROGRAMUNIFORM2FPROC)load("glProgramUniform2f");
+	glad_glProgramUniform2fv = (PFNGLPROGRAMUNIFORM2FVPROC)load("glProgramUniform2fv");
+	glad_glProgramUniform2d = (PFNGLPROGRAMUNIFORM2DPROC)load("glProgramUniform2d");
+	glad_glProgramUniform2dv = (PFNGLPROGRAMUNIFORM2DVPROC)load("glProgramUniform2dv");
+	glad_glProgramUniform2ui = (PFNGLPROGRAMUNIFORM2UIPROC)load("glProgramUniform2ui");
+	glad_glProgramUniform2uiv = (PFNGLPROGRAMUNIFORM2UIVPROC)load("glProgramUniform2uiv");
+	glad_glProgramUniform3i = (PFNGLPROGRAMUNIFORM3IPROC)load("glProgramUniform3i");
+	glad_glProgramUniform3iv = (PFNGLPROGRAMUNIFORM3IVPROC)load("glProgramUniform3iv");
+	glad_glProgramUniform3f = (PFNGLPROGRAMUNIFORM3FPROC)load("glProgramUniform3f");
+	glad_glProgramUniform3fv = (PFNGLPROGRAMUNIFORM3FVPROC)load("glProgramUniform3fv");
+	glad_glProgramUniform3d = (PFNGLPROGRAMUNIFORM3DPROC)load("glProgramUniform3d");
+	glad_glProgramUniform3dv = (PFNGLPROGRAMUNIFORM3DVPROC)load("glProgramUniform3dv");
+	glad_glProgramUniform3ui = (PFNGLPROGRAMUNIFORM3UIPROC)load("glProgramUniform3ui");
+	glad_glProgramUniform3uiv = (PFNGLPROGRAMUNIFORM3UIVPROC)load("glProgramUniform3uiv");
+	glad_glProgramUniform4i = (PFNGLPROGRAMUNIFORM4IPROC)load("glProgramUniform4i");
+	glad_glProgramUniform4iv = (PFNGLPROGRAMUNIFORM4IVPROC)load("glProgramUniform4iv");
+	glad_glProgramUniform4f = (PFNGLPROGRAMUNIFORM4FPROC)load("glProgramUniform4f");
+	glad_glProgramUniform4fv = (PFNGLPROGRAMUNIFORM4FVPROC)load("glProgramUniform4fv");
+	glad_glProgramUniform4d = (PFNGLPROGRAMUNIFORM4DPROC)load("glProgramUniform4d");
+	glad_glProgramUniform4dv = (PFNGLPROGRAMUNIFORM4DVPROC)load("glProgramUniform4dv");
+	glad_glProgramUniform4ui = (PFNGLPROGRAMUNIFORM4UIPROC)load("glProgramUniform4ui");
+	glad_glProgramUniform4uiv = (PFNGLPROGRAMUNIFORM4UIVPROC)load("glProgramUniform4uiv");
+	glad_glProgramUniformMatrix2fv = (PFNGLPROGRAMUNIFORMMATRIX2FVPROC)load("glProgramUniformMatrix2fv");
+	glad_glProgramUniformMatrix3fv = (PFNGLPROGRAMUNIFORMMATRIX3FVPROC)load("glProgramUniformMatrix3fv");
+	glad_glProgramUniformMatrix4fv = (PFNGLPROGRAMUNIFORMMATRIX4FVPROC)load("glProgramUniformMatrix4fv");
+	glad_glProgramUniformMatrix2dv = (PFNGLPROGRAMUNIFORMMATRIX2DVPROC)load("glProgramUniformMatrix2dv");
+	glad_glProgramUniformMatrix3dv = (PFNGLPROGRAMUNIFORMMATRIX3DVPROC)load("glProgramUniformMatrix3dv");
+	glad_glProgramUniformMatrix4dv = (PFNGLPROGRAMUNIFORMMATRIX4DVPROC)load("glProgramUniformMatrix4dv");
+	glad_glProgramUniformMatrix2x3fv = (PFNGLPROGRAMUNIFORMMATRIX2X3FVPROC)load("glProgramUniformMatrix2x3fv");
+	glad_glProgramUniformMatrix3x2fv = (PFNGLPROGRAMUNIFORMMATRIX3X2FVPROC)load("glProgramUniformMatrix3x2fv");
+	glad_glProgramUniformMatrix2x4fv = (PFNGLPROGRAMUNIFORMMATRIX2X4FVPROC)load("glProgramUniformMatrix2x4fv");
+	glad_glProgramUniformMatrix4x2fv = (PFNGLPROGRAMUNIFORMMATRIX4X2FVPROC)load("glProgramUniformMatrix4x2fv");
+	glad_glProgramUniformMatrix3x4fv = (PFNGLPROGRAMUNIFORMMATRIX3X4FVPROC)load("glProgramUniformMatrix3x4fv");
+	glad_glProgramUniformMatrix4x3fv = (PFNGLPROGRAMUNIFORMMATRIX4X3FVPROC)load("glProgramUniformMatrix4x3fv");
+	glad_glProgramUniformMatrix2x3dv = (PFNGLPROGRAMUNIFORMMATRIX2X3DVPROC)load("glProgramUniformMatrix2x3dv");
+	glad_glProgramUniformMatrix3x2dv = (PFNGLPROGRAMUNIFORMMATRIX3X2DVPROC)load("glProgramUniformMatrix3x2dv");
+	glad_glProgramUniformMatrix2x4dv = (PFNGLPROGRAMUNIFORMMATRIX2X4DVPROC)load("glProgramUniformMatrix2x4dv");
+	glad_glProgramUniformMatrix4x2dv = (PFNGLPROGRAMUNIFORMMATRIX4X2DVPROC)load("glProgramUniformMatrix4x2dv");
+	glad_glProgramUniformMatrix3x4dv = (PFNGLPROGRAMUNIFORMMATRIX3X4DVPROC)load("glProgramUniformMatrix3x4dv");
+	glad_glProgramUniformMatrix4x3dv = (PFNGLPROGRAMUNIFORMMATRIX4X3DVPROC)load("glProgramUniformMatrix4x3dv");
+	glad_glValidateProgramPipeline = (PFNGLVALIDATEPROGRAMPIPELINEPROC)load("glValidateProgramPipeline");
+	glad_glGetProgramPipelineInfoLog = (PFNGLGETPROGRAMPIPELINEINFOLOGPROC)load("glGetProgramPipelineInfoLog");
+	glad_glVertexAttribL1d = (PFNGLVERTEXATTRIBL1DPROC)load("glVertexAttribL1d");
+	glad_glVertexAttribL2d = (PFNGLVERTEXATTRIBL2DPROC)load("glVertexAttribL2d");
+	glad_glVertexAttribL3d = (PFNGLVERTEXATTRIBL3DPROC)load("glVertexAttribL3d");
+	glad_glVertexAttribL4d = (PFNGLVERTEXATTRIBL4DPROC)load("glVertexAttribL4d");
+	glad_glVertexAttribL1dv = (PFNGLVERTEXATTRIBL1DVPROC)load("glVertexAttribL1dv");
+	glad_glVertexAttribL2dv = (PFNGLVERTEXATTRIBL2DVPROC)load("glVertexAttribL2dv");
+	glad_glVertexAttribL3dv = (PFNGLVERTEXATTRIBL3DVPROC)load("glVertexAttribL3dv");
+	glad_glVertexAttribL4dv = (PFNGLVERTEXATTRIBL4DVPROC)load("glVertexAttribL4dv");
+	glad_glVertexAttribLPointer = (PFNGLVERTEXATTRIBLPOINTERPROC)load("glVertexAttribLPointer");
+	glad_glGetVertexAttribLdv = (PFNGLGETVERTEXATTRIBLDVPROC)load("glGetVertexAttribLdv");
+	glad_glViewportArrayv = (PFNGLVIEWPORTARRAYVPROC)load("glViewportArrayv");
+	glad_glViewportIndexedf = (PFNGLVIEWPORTINDEXEDFPROC)load("glViewportIndexedf");
+	glad_glViewportIndexedfv = (PFNGLVIEWPORTINDEXEDFVPROC)load("glViewportIndexedfv");
+	glad_glScissorArrayv = (PFNGLSCISSORARRAYVPROC)load("glScissorArrayv");
+	glad_glScissorIndexed = (PFNGLSCISSORINDEXEDPROC)load("glScissorIndexed");
+	glad_glScissorIndexedv = (PFNGLSCISSORINDEXEDVPROC)load("glScissorIndexedv");
+	glad_glDepthRangeArrayv = (PFNGLDEPTHRANGEARRAYVPROC)load("glDepthRangeArrayv");
+	glad_glDepthRangeIndexed = (PFNGLDEPTHRANGEINDEXEDPROC)load("glDepthRangeIndexed");
+	glad_glGetFloati_v = (PFNGLGETFLOATI_VPROC)load("glGetFloati_v");
+	glad_glGetDoublei_v = (PFNGLGETDOUBLEI_VPROC)load("glGetDoublei_v");
+}
+static void load_GL_VERSION_4_2(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_4_2) return;
+	glad_glDrawArraysInstancedBaseInstance = (PFNGLDRAWARRAYSINSTANCEDBASEINSTANCEPROC)load("glDrawArraysInstancedBaseInstance");
+	glad_glDrawElementsInstancedBaseInstance = (PFNGLDRAWELEMENTSINSTANCEDBASEINSTANCEPROC)load("glDrawElementsInstancedBaseInstance");
+	glad_glDrawElementsInstancedBaseVertexBaseInstance = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEPROC)load("glDrawElementsInstancedBaseVertexBaseInstance");
+	glad_glGetInternalformativ = (PFNGLGETINTERNALFORMATIVPROC)load("glGetInternalformativ");
+	glad_glGetActiveAtomicCounterBufferiv = (PFNGLGETACTIVEATOMICCOUNTERBUFFERIVPROC)load("glGetActiveAtomicCounterBufferiv");
+	glad_glBindImageTexture = (PFNGLBINDIMAGETEXTUREPROC)load("glBindImageTexture");
+	glad_glMemoryBarrier = (PFNGLMEMORYBARRIERPROC)load("glMemoryBarrier");
+	glad_glTexStorage1D = (PFNGLTEXSTORAGE1DPROC)load("glTexStorage1D");
+	glad_glTexStorage2D = (PFNGLTEXSTORAGE2DPROC)load("glTexStorage2D");
+	glad_glTexStorage3D = (PFNGLTEXSTORAGE3DPROC)load("glTexStorage3D");
+	glad_glDrawTransformFeedbackInstanced = (PFNGLDRAWTRANSFORMFEEDBACKINSTANCEDPROC)load("glDrawTransformFeedbackInstanced");
+	glad_glDrawTransformFeedbackStreamInstanced = (PFNGLDRAWTRANSFORMFEEDBACKSTREAMINSTANCEDPROC)load("glDrawTransformFeedbackStreamInstanced");
+}
+static void load_GL_VERSION_4_3(GLADloadproc load) {
+	if(!GLAD_GL_VERSION_4_3) return;
+	glad_glClearBufferData = (PFNGLCLEARBUFFERDATAPROC)load("glClearBufferData");
+	glad_glClearBufferSubData = (PFNGLCLEARBUFFERSUBDATAPROC)load("glClearBufferSubData");
+	glad_glDispatchCompute = (PFNGLDISPATCHCOMPUTEPROC)load("glDispatchCompute");
+	glad_glDispatchComputeIndirect = (PFNGLDISPATCHCOMPUTEINDIRECTPROC)load("glDispatchComputeIndirect");
+	glad_glCopyImageSubData = (PFNGLCOPYIMAGESUBDATAPROC)load("glCopyImageSubData");
+	glad_glFramebufferParameteri = (PFNGLFRAMEBUFFERPARAMETERIPROC)load("glFramebufferParameteri");
+	glad_glGetFramebufferParameteriv = (PFNGLGETFRAMEBUFFERPARAMETERIVPROC)load("glGetFramebufferParameteriv");
+	glad_glGetInternalformati64v = (PFNGLGETINTERNALFORMATI64VPROC)load("glGetInternalformati64v");
+	glad_glInvalidateTexSubImage = (PFNGLINVALIDATETEXSUBIMAGEPROC)load("glInvalidateTexSubImage");
+	glad_glInvalidateTexImage = (PFNGLINVALIDATETEXIMAGEPROC)load("glInvalidateTexImage");
+	glad_glInvalidateBufferSubData = (PFNGLINVALIDATEBUFFERSUBDATAPROC)load("glInvalidateBufferSubData");
+	glad_glInvalidateBufferData = (PFNGLINVALIDATEBUFFERDATAPROC)load("glInvalidateBufferData");
+	glad_glInvalidateFramebuffer = (PFNGLINVALIDATEFRAMEBUFFERPROC)load("glInvalidateFramebuffer");
+	glad_glInvalidateSubFramebuffer = (PFNGLINVALIDATESUBFRAMEBUFFERPROC)load("glInvalidateSubFramebuffer");
+	glad_glMultiDrawArraysIndirect = (PFNGLMULTIDRAWARRAYSINDIRECTPROC)load("glMultiDrawArraysIndirect");
+	glad_glMultiDrawElementsIndirect = (PFNGLMULTIDRAWELEMENTSINDIRECTPROC)load("glMultiDrawElementsIndirect");
+	glad_glGetProgramInterfaceiv = (PFNGLGETPROGRAMINTERFACEIVPROC)load("glGetProgramInterfaceiv");
+	glad_glGetProgramResourceIndex = (PFNGLGETPROGRAMRESOURCEINDEXPROC)load("glGetProgramResourceIndex");
+	glad_glGetProgramResourceName = (PFNGLGETPROGRAMRESOURCENAMEPROC)load("glGetProgramResourceName");
+	glad_glGetProgramResourceiv = (PFNGLGETPROGRAMRESOURCEIVPROC)load("glGetProgramResourceiv");
+	glad_glGetProgramResourceLocation = (PFNGLGETPROGRAMRESOURCELOCATIONPROC)load("glGetProgramResourceLocation");
+	glad_glGetProgramResourceLocationIndex = (PFNGLGETPROGRAMRESOURCELOCATIONINDEXPROC)load("glGetProgramResourceLocationIndex");
+	glad_glShaderStorageBlockBinding = (PFNGLSHADERSTORAGEBLOCKBINDINGPROC)load("glShaderStorageBlockBinding");
+	glad_glTexBufferRange = (PFNGLTEXBUFFERRANGEPROC)load("glTexBufferRange");
+	glad_glTexStorage2DMultisample = (PFNGLTEXSTORAGE2DMULTISAMPLEPROC)load("glTexStorage2DMultisample");
+	glad_glTexStorage3DMultisample = (PFNGLTEXSTORAGE3DMULTISAMPLEPROC)load("glTexStorage3DMultisample");
+	glad_glTextureView = (PFNGLTEXTUREVIEWPROC)load("glTextureView");
+	glad_glBindVertexBuffer = (PFNGLBINDVERTEXBUFFERPROC)load("glBindVertexBuffer");
+	glad_glVertexAttribFormat = (PFNGLVERTEXATTRIBFORMATPROC)load("glVertexAttribFormat");
+	glad_glVertexAttribIFormat = (PFNGLVERTEXATTRIBIFORMATPROC)load("glVertexAttribIFormat");
+	glad_glVertexAttribLFormat = (PFNGLVERTEXATTRIBLFORMATPROC)load("glVertexAttribLFormat");
+	glad_glVertexAttribBinding = (PFNGLVERTEXATTRIBBINDINGPROC)load("glVertexAttribBinding");
+	glad_glVertexBindingDivisor = (PFNGLVERTEXBINDINGDIVISORPROC)load("glVertexBindingDivisor");
+	glad_glDebugMessageControl = (PFNGLDEBUGMESSAGECONTROLPROC)load("glDebugMessageControl");
+	glad_glDebugMessageInsert = (PFNGLDEBUGMESSAGEINSERTPROC)load("glDebugMessageInsert");
+	glad_glDebugMessageCallback = (PFNGLDEBUGMESSAGECALLBACKPROC)load("glDebugMessageCallback");
+	glad_glGetDebugMessageLog = (PFNGLGETDEBUGMESSAGELOGPROC)load("glGetDebugMessageLog");
+	glad_glPushDebugGroup = (PFNGLPUSHDEBUGGROUPPROC)load("glPushDebugGroup");
+	glad_glPopDebugGroup = (PFNGLPOPDEBUGGROUPPROC)load("glPopDebugGroup");
+	glad_glObjectLabel = (PFNGLOBJECTLABELPROC)load("glObjectLabel");
+	glad_glGetObjectLabel = (PFNGLGETOBJECTLABELPROC)load("glGetObjectLabel");
+	glad_glObjectPtrLabel = (PFNGLOBJECTPTRLABELPROC)load("glObjectPtrLabel");
+	glad_glGetObjectPtrLabel = (PFNGLGETOBJECTPTRLABELPROC)load("glGetObjectPtrLabel");
+	glad_glGetPointerv = (PFNGLGETPOINTERVPROC)load("glGetPointerv");
+}
 static int find_extensionsGL(void) {
 	if (!get_exts()) return 0;
 	(void)&has_ext;
@@ -1109,8 +1506,12 @@ static void find_coreGL(void) {
 	GLAD_GL_VERSION_3_1 = (major == 3 && minor >= 1) || major > 3;
 	GLAD_GL_VERSION_3_2 = (major == 3 && minor >= 2) || major > 3;
 	GLAD_GL_VERSION_3_3 = (major == 3 && minor >= 3) || major > 3;
-	if (GLVersion.major > 3 || (GLVersion.major >= 3 && GLVersion.minor >= 3)) {
-		max_loaded_major = 3;
+	GLAD_GL_VERSION_4_0 = (major == 4 && minor >= 0) || major > 4;
+	GLAD_GL_VERSION_4_1 = (major == 4 && minor >= 1) || major > 4;
+	GLAD_GL_VERSION_4_2 = (major == 4 && minor >= 2) || major > 4;
+	GLAD_GL_VERSION_4_3 = (major == 4 && minor >= 3) || major > 4;
+	if (GLVersion.major > 4 || (GLVersion.major >= 4 && GLVersion.minor >= 3)) {
+		max_loaded_major = 4;
 		max_loaded_minor = 3;
 	}
 }
@@ -1133,6 +1534,10 @@ int gladLoadGLLoader(GLADloadproc load) {
 	load_GL_VERSION_3_1(load);
 	load_GL_VERSION_3_2(load);
 	load_GL_VERSION_3_3(load);
+	load_GL_VERSION_4_0(load);
+	load_GL_VERSION_4_1(load);
+	load_GL_VERSION_4_2(load);
+	load_GL_VERSION_4_3(load);
 
 	if (!find_extensionsGL()) return 0;
 	return GLVersion.major != 0 || GLVersion.minor != 0;

src/vendor/qoi.h

@@ -1,649 +0,0 @@
-/*
-
-Copyright (c) 2021, Dominic Szablewski - https://phoboslab.org
-SPDX-License-Identifier: MIT
-
-
-QOI - The "Quite OK Image" format for fast, lossless image compression
-
--- About
-
-QOI encodes and decodes images in a lossless format. Compared to stb_image and
-stb_image_write QOI offers 20x-50x faster encoding, 3x-4x faster decoding and
-20% better compression.
-
-
--- Synopsis
-
-// Define `QOI_IMPLEMENTATION` in *one* C/C++ file before including this
-// library to create the implementation.
-
-#define QOI_IMPLEMENTATION
-#include "qoi.h"
-
-// Encode and store an RGBA buffer to the file system. The qoi_desc describes
-// the input pixel data.
-qoi_write("image_new.qoi", rgba_pixels, &(qoi_desc){
-	.width = 1920,
-	.height = 1080,
-	.channels = 4,
-	.colorspace = QOI_SRGB
-});
-
-// Load and decode a QOI image from the file system into a 32bbp RGBA buffer.
-// The qoi_desc struct will be filled with the width, height, number of channels
-// and colorspace read from the file header.
-qoi_desc desc;
-void *rgba_pixels = qoi_read("image.qoi", &desc, 4);
-
-
-
--- Documentation
-
-This library provides the following functions;
-- qoi_read    -- read and decode a QOI file
-- qoi_decode  -- decode the raw bytes of a QOI image from memory
-- qoi_write   -- encode and write a QOI file
-- qoi_encode  -- encode an rgba buffer into a QOI image in memory
-
-See the function declaration below for the signature and more information.
-
-If you don't want/need the qoi_read and qoi_write functions, you can define
-QOI_NO_STDIO before including this library.
-
-This library uses malloc() and free(). To supply your own malloc implementation
-you can define QOI_MALLOC and QOI_FREE before including this library.
-
-This library uses memset() to zero-initialize the index. To supply your own
-implementation you can define QOI_ZEROARR before including this library.
-
-
--- Data Format
-
-A QOI file has a 14 byte header, followed by any number of data "chunks" and an
-8-byte end marker.
-
-struct qoi_header_t {
-	char     magic[4];   // magic bytes "qoif"
-	uint32_t width;      // image width in pixels (BE)
-	uint32_t height;     // image height in pixels (BE)
-	uint8_t  channels;   // 3 = RGB, 4 = RGBA
-	uint8_t  colorspace; // 0 = sRGB with linear alpha, 1 = all channels linear
-};
-
-Images are encoded row by row, left to right, top to bottom. The decoder and
-encoder start with {r: 0, g: 0, b: 0, a: 255} as the previous pixel value. An
-image is complete when all pixels specified by width * height have been covered.
-
-Pixels are encoded as
- - a run of the previous pixel
- - an index into an array of previously seen pixels
- - a difference to the previous pixel value in r,g,b
- - full r,g,b or r,g,b,a values
-
-The color channels are assumed to not be premultiplied with the alpha channel
-("un-premultiplied alpha").
-
-A running array[64] (zero-initialized) of previously seen pixel values is
-maintained by the encoder and decoder. Each pixel that is seen by the encoder
-and decoder is put into this array at the position formed by a hash function of
-the color value. In the encoder, if the pixel value at the index matches the
-current pixel, this index position is written to the stream as QOI_OP_INDEX.
-The hash function for the index is:
-
-	index_position = (r * 3 + g * 5 + b * 7 + a * 11) % 64
-
-Each chunk starts with a 2- or 8-bit tag, followed by a number of data bits. The
-bit length of chunks is divisible by 8 - i.e. all chunks are byte aligned. All
-values encoded in these data bits have the most significant bit on the left.
-
-The 8-bit tags have precedence over the 2-bit tags. A decoder must check for the
-presence of an 8-bit tag first.
-
-The byte stream's end is marked with 7 0x00 bytes followed a single 0x01 byte.
-
-
-The possible chunks are:
-
-
-.- QOI_OP_INDEX ----------.
-|         Byte[0]         |
-|  7  6  5  4  3  2  1  0 |
-|-------+-----------------|
-|  0  0 |     index       |
-`-------------------------`
-2-bit tag b00
-6-bit index into the color index array: 0..63
-
-A valid encoder must not issue 2 or more consecutive QOI_OP_INDEX chunks to the
-same index. QOI_OP_RUN should be used instead.
-
-
-.- QOI_OP_DIFF -----------.
-|         Byte[0]         |
-|  7  6  5  4  3  2  1  0 |
-|-------+-----+-----+-----|
-|  0  1 |  dr |  dg |  db |
-`-------------------------`
-2-bit tag b01
-2-bit   red channel difference from the previous pixel between -2..1
-2-bit green channel difference from the previous pixel between -2..1
-2-bit  blue channel difference from the previous pixel between -2..1
-
-The difference to the current channel values are using a wraparound operation,
-so "1 - 2" will result in 255, while "255 + 1" will result in 0.
-
-Values are stored as unsigned integers with a bias of 2. E.g. -2 is stored as
-0 (b00). 1 is stored as 3 (b11).
-
-The alpha value remains unchanged from the previous pixel.
-
-
-.- QOI_OP_LUMA -------------------------------------.
-|         Byte[0]         |         Byte[1]         |
-|  7  6  5  4  3  2  1  0 |  7  6  5  4  3  2  1  0 |
-|-------+-----------------+-------------+-----------|
-|  1  0 |  green diff     |   dr - dg   |  db - dg  |
-`---------------------------------------------------`
-2-bit tag b10
-6-bit green channel difference from the previous pixel -32..31
-4-bit   red channel difference minus green channel difference -8..7
-4-bit  blue channel difference minus green channel difference -8..7
-
-The green channel is used to indicate the general direction of change and is
-encoded in 6 bits. The red and blue channels (dr and db) base their diffs off
-of the green channel difference and are encoded in 4 bits. I.e.:
-	dr_dg = (cur_px.r - prev_px.r) - (cur_px.g - prev_px.g)
-	db_dg = (cur_px.b - prev_px.b) - (cur_px.g - prev_px.g)
-
-The difference to the current channel values are using a wraparound operation,
-so "10 - 13" will result in 253, while "250 + 7" will result in 1.
-
-Values are stored as unsigned integers with a bias of 32 for the green channel
-and a bias of 8 for the red and blue channel.
-
-The alpha value remains unchanged from the previous pixel.
-
-
-.- QOI_OP_RUN ------------.
-|         Byte[0]         |
-|  7  6  5  4  3  2  1  0 |
-|-------+-----------------|
-|  1  1 |       run       |
-`-------------------------`
-2-bit tag b11
-6-bit run-length repeating the previous pixel: 1..62
-
-The run-length is stored with a bias of -1. Note that the run-lengths 63 and 64
-(b111110 and b111111) are illegal as they are occupied by the QOI_OP_RGB and
-QOI_OP_RGBA tags.
-
-
-.- QOI_OP_RGB ------------------------------------------.
-|         Byte[0]         | Byte[1] | Byte[2] | Byte[3] |
-|  7  6  5  4  3  2  1  0 | 7 .. 0  | 7 .. 0  | 7 .. 0  |
-|-------------------------+---------+---------+---------|
-|  1  1  1  1  1  1  1  0 |   red   |  green  |  blue   |
-`-------------------------------------------------------`
-8-bit tag b11111110
-8-bit   red channel value
-8-bit green channel value
-8-bit  blue channel value
-
-The alpha value remains unchanged from the previous pixel.
-
-
-.- QOI_OP_RGBA ---------------------------------------------------.
-|         Byte[0]         | Byte[1] | Byte[2] | Byte[3] | Byte[4] |
-|  7  6  5  4  3  2  1  0 | 7 .. 0  | 7 .. 0  | 7 .. 0  | 7 .. 0  |
-|-------------------------+---------+---------+---------+---------|
-|  1  1  1  1  1  1  1  1 |   red   |  green  |  blue   |  alpha  |
-`-----------------------------------------------------------------`
-8-bit tag b11111111
-8-bit   red channel value
-8-bit green channel value
-8-bit  blue channel value
-8-bit alpha channel value
-
-*/
-
-
-/* -----------------------------------------------------------------------------
-Header - Public functions */
-
-#ifndef QOI_H
-#define QOI_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* A pointer to a qoi_desc struct has to be supplied to all of qoi's functions.
-It describes either the input format (for qoi_write and qoi_encode), or is
-filled with the description read from the file header (for qoi_read and
-qoi_decode).
-
-The colorspace in this qoi_desc is an enum where
-	0 = sRGB, i.e. gamma scaled RGB channels and a linear alpha channel
-	1 = all channels are linear
-You may use the constants QOI_SRGB or QOI_LINEAR. The colorspace is purely
-informative. It will be saved to the file header, but does not affect
-how chunks are en-/decoded. */
-
-#define QOI_SRGB   0
-#define QOI_LINEAR 1
-
-typedef struct {
-	unsigned int width;
-	unsigned int height;
-	unsigned char channels;
-	unsigned char colorspace;
-} qoi_desc;
-
-#ifndef QOI_NO_STDIO
-
-/* Encode raw RGB or RGBA pixels into a QOI image and write it to the file
-system. The qoi_desc struct must be filled with the image width, height,
-number of channels (3 = RGB, 4 = RGBA) and the colorspace.
-
-The function returns 0 on failure (invalid parameters, or fopen or malloc
-failed) or the number of bytes written on success. */
-
-int qoi_write(const char *filename, const void *data, const qoi_desc *desc);
-
-
-/* Read and decode a QOI image from the file system. If channels is 0, the
-number of channels from the file header is used. If channels is 3 or 4 the
-output format will be forced into this number of channels.
-
-The function either returns NULL on failure (invalid data, or malloc or fopen
-failed) or a pointer to the decoded pixels. On success, the qoi_desc struct
-will be filled with the description from the file header.
-
-The returned pixel data should be free()d after use. */
-
-void *qoi_read(const char *filename, qoi_desc *desc, int channels);
-
-#endif /* QOI_NO_STDIO */
-
-
-/* Encode raw RGB or RGBA pixels into a QOI image in memory.
-
-The function either returns NULL on failure (invalid parameters or malloc
-failed) or a pointer to the encoded data on success. On success the out_len
-is set to the size in bytes of the encoded data.
-
-The returned qoi data should be free()d after use. */
-
-void *qoi_encode(const void *data, const qoi_desc *desc, int *out_len);
-
-
-/* Decode a QOI image from memory.
-
-The function either returns NULL on failure (invalid parameters or malloc
-failed) or a pointer to the decoded pixels. On success, the qoi_desc struct
-is filled with the description from the file header.
-
-The returned pixel data should be free()d after use. */
-
-void *qoi_decode(const void *data, int size, qoi_desc *desc, int channels);
-
-
-#ifdef __cplusplus
-}
-#endif
-#endif /* QOI_H */
-
-
-/* -----------------------------------------------------------------------------
-Implementation */
-
-#ifdef QOI_IMPLEMENTATION
-#include <stdlib.h>
-#include <string.h>
-
-#ifndef QOI_MALLOC
-	#define QOI_MALLOC(sz) malloc(sz)
-	#define QOI_FREE(p)    free(p)
-#endif
-#ifndef QOI_ZEROARR
-	#define QOI_ZEROARR(a) memset((a),0,sizeof(a))
-#endif
-
-#define QOI_OP_INDEX  0x00 /* 00xxxxxx */
-#define QOI_OP_DIFF   0x40 /* 01xxxxxx */
-#define QOI_OP_LUMA   0x80 /* 10xxxxxx */
-#define QOI_OP_RUN    0xc0 /* 11xxxxxx */
-#define QOI_OP_RGB    0xfe /* 11111110 */
-#define QOI_OP_RGBA   0xff /* 11111111 */
-
-#define QOI_MASK_2    0xc0 /* 11000000 */
-
-#define QOI_COLOR_HASH(C) (C.rgba.r*3 + C.rgba.g*5 + C.rgba.b*7 + C.rgba.a*11)
-#define QOI_MAGIC \
-	(((unsigned int)'q') << 24 | ((unsigned int)'o') << 16 | \
-	 ((unsigned int)'i') <<  8 | ((unsigned int)'f'))
-#define QOI_HEADER_SIZE 14
-
-/* 2GB is the max file size that this implementation can safely handle. We guard
-against anything larger than that, assuming the worst case with 5 bytes per
-pixel, rounded down to a nice clean value. 400 million pixels ought to be
-enough for anybody. */
-#define QOI_PIXELS_MAX ((unsigned int)400000000)
-
-typedef union {
-	struct { unsigned char r, g, b, a; } rgba;
-	unsigned int v;
-} qoi_rgba_t;
-
-static const unsigned char qoi_padding[8] = {0,0,0,0,0,0,0,1};
-
-static void qoi_write_32(unsigned char *bytes, int *p, unsigned int v) {
-	bytes[(*p)++] = (0xff000000 & v) >> 24;
-	bytes[(*p)++] = (0x00ff0000 & v) >> 16;
-	bytes[(*p)++] = (0x0000ff00 & v) >> 8;
-	bytes[(*p)++] = (0x000000ff & v);
-}
-
-static unsigned int qoi_read_32(const unsigned char *bytes, int *p) {
-	unsigned int a = bytes[(*p)++];
-	unsigned int b = bytes[(*p)++];
-	unsigned int c = bytes[(*p)++];
-	unsigned int d = bytes[(*p)++];
-	return a << 24 | b << 16 | c << 8 | d;
-}
-
-void *qoi_encode(const void *data, const qoi_desc *desc, int *out_len) {
-	int i, max_size, p, run;
-	int px_len, px_end, px_pos, channels;
-	unsigned char *bytes;
-	const unsigned char *pixels;
-	qoi_rgba_t index[64];
-	qoi_rgba_t px, px_prev;
-
-	if (
-		data == NULL || out_len == NULL || desc == NULL ||
-		desc->width == 0 || desc->height == 0 ||
-		desc->channels < 3 || desc->channels > 4 ||
-		desc->colorspace > 1 ||
-		desc->height >= QOI_PIXELS_MAX / desc->width
-	) {
-		return NULL;
-	}
-
-	max_size =
-		desc->width * desc->height * (desc->channels + 1) +
-		QOI_HEADER_SIZE + sizeof(qoi_padding);
-
-	p = 0;
-	bytes = (unsigned char *) QOI_MALLOC(max_size);
-	if (!bytes) {
-		return NULL;
-	}
-
-	qoi_write_32(bytes, &p, QOI_MAGIC);
-	qoi_write_32(bytes, &p, desc->width);
-	qoi_write_32(bytes, &p, desc->height);
-	bytes[p++] = desc->channels;
-	bytes[p++] = desc->colorspace;
-
-
-	pixels = (const unsigned char *)data;
-
-	QOI_ZEROARR(index);
-
-	run = 0;
-	px_prev.rgba.r = 0;
-	px_prev.rgba.g = 0;
-	px_prev.rgba.b = 0;
-	px_prev.rgba.a = 255;
-	px = px_prev;
-
-	px_len = desc->width * desc->height * desc->channels;
-	px_end = px_len - desc->channels;
-	channels = desc->channels;
-
-	for (px_pos = 0; px_pos < px_len; px_pos += channels) {
-		px.rgba.r = pixels[px_pos + 0];
-		px.rgba.g = pixels[px_pos + 1];
-		px.rgba.b = pixels[px_pos + 2];
-
-		if (channels == 4) {
-			px.rgba.a = pixels[px_pos + 3];
-		}
-
-		if (px.v == px_prev.v) {
-			run++;
-			if (run == 62 || px_pos == px_end) {
-				bytes[p++] = QOI_OP_RUN | (run - 1);
-				run = 0;
-			}
-		}
-		else {
-			int index_pos;
-
-			if (run > 0) {
-				bytes[p++] = QOI_OP_RUN | (run - 1);
-				run = 0;
-			}
-
-			index_pos = QOI_COLOR_HASH(px) % 64;
-
-			if (index[index_pos].v == px.v) {
-				bytes[p++] = QOI_OP_INDEX | index_pos;
-			}
-			else {
-				index[index_pos] = px;
-
-				if (px.rgba.a == px_prev.rgba.a) {
-					signed char vr = px.rgba.r - px_prev.rgba.r;
-					signed char vg = px.rgba.g - px_prev.rgba.g;
-					signed char vb = px.rgba.b - px_prev.rgba.b;
-
-					signed char vg_r = vr - vg;
-					signed char vg_b = vb - vg;
-
-					if (
-						vr > -3 && vr < 2 &&
-						vg > -3 && vg < 2 &&
-						vb > -3 && vb < 2
-					) {
-						bytes[p++] = QOI_OP_DIFF | (vr + 2) << 4 | (vg + 2) << 2 | (vb + 2);
-					}
-					else if (
-						vg_r >  -9 && vg_r <  8 &&
-						vg   > -33 && vg   < 32 &&
-						vg_b >  -9 && vg_b <  8
-					) {
-						bytes[p++] = QOI_OP_LUMA     | (vg   + 32);
-						bytes[p++] = (vg_r + 8) << 4 | (vg_b +  8);
-					}
-					else {
-						bytes[p++] = QOI_OP_RGB;
-						bytes[p++] = px.rgba.r;
-						bytes[p++] = px.rgba.g;
-						bytes[p++] = px.rgba.b;
-					}
-				}
-				else {
-					bytes[p++] = QOI_OP_RGBA;
-					bytes[p++] = px.rgba.r;
-					bytes[p++] = px.rgba.g;
-					bytes[p++] = px.rgba.b;
-					bytes[p++] = px.rgba.a;
-				}
-			}
-		}
-		px_prev = px;
-	}
-
-	for (i = 0; i < (int)sizeof(qoi_padding); i++) {
-		bytes[p++] = qoi_padding[i];
-	}
-
-	*out_len = p;
-	return bytes;
-}
-
-void *qoi_decode(const void *data, int size, qoi_desc *desc, int channels) {
-	const unsigned char *bytes;
-	unsigned int header_magic;
-	unsigned char *pixels;
-	qoi_rgba_t index[64];
-	qoi_rgba_t px;
-	int px_len, chunks_len, px_pos;
-	int p = 0, run = 0;
-
-	if (
-		data == NULL || desc == NULL ||
-		(channels != 0 && channels != 3 && channels != 4) ||
-		size < QOI_HEADER_SIZE + (int)sizeof(qoi_padding)
-	) {
-		return NULL;
-	}
-
-	bytes = (const unsigned char *)data;
-
-	header_magic = qoi_read_32(bytes, &p);
-	desc->width = qoi_read_32(bytes, &p);
-	desc->height = qoi_read_32(bytes, &p);
-	desc->channels = bytes[p++];
-	desc->colorspace = bytes[p++];
-
-	if (
-		desc->width == 0 || desc->height == 0 ||
-		desc->channels < 3 || desc->channels > 4 ||
-		desc->colorspace > 1 ||
-		header_magic != QOI_MAGIC ||
-		desc->height >= QOI_PIXELS_MAX / desc->width
-	) {
-		return NULL;
-	}
-
-	if (channels == 0) {
-		channels = desc->channels;
-	}
-
-	px_len = desc->width * desc->height * channels;
-	pixels = (unsigned char *) QOI_MALLOC(px_len);
-	if (!pixels) {
-		return NULL;
-	}
-
-	QOI_ZEROARR(index);
-	px.rgba.r = 0;
-	px.rgba.g = 0;
-	px.rgba.b = 0;
-	px.rgba.a = 255;
-
-	chunks_len = size - (int)sizeof(qoi_padding);
-	for (px_pos = 0; px_pos < px_len; px_pos += channels) {
-		if (run > 0) {
-			run--;
-		}
-		else if (p < chunks_len) {
-			int b1 = bytes[p++];
-
-			if (b1 == QOI_OP_RGB) {
-				px.rgba.r = bytes[p++];
-				px.rgba.g = bytes[p++];
-				px.rgba.b = bytes[p++];
-			}
-			else if (b1 == QOI_OP_RGBA) {
-				px.rgba.r = bytes[p++];
-				px.rgba.g = bytes[p++];
-				px.rgba.b = bytes[p++];
-				px.rgba.a = bytes[p++];
-			}
-			else if ((b1 & QOI_MASK_2) == QOI_OP_INDEX) {
-				px = index[b1];
-			}
-			else if ((b1 & QOI_MASK_2) == QOI_OP_DIFF) {
-				px.rgba.r += ((b1 >> 4) & 0x03) - 2;
-				px.rgba.g += ((b1 >> 2) & 0x03) - 2;
-				px.rgba.b += ( b1       & 0x03) - 2;
-			}
-			else if ((b1 & QOI_MASK_2) == QOI_OP_LUMA) {
-				int b2 = bytes[p++];
-				int vg = (b1 & 0x3f) - 32;
-				px.rgba.r += vg - 8 + ((b2 >> 4) & 0x0f);
-				px.rgba.g += vg;
-				px.rgba.b += vg - 8 +  (b2       & 0x0f);
-			}
-			else if ((b1 & QOI_MASK_2) == QOI_OP_RUN) {
-				run = (b1 & 0x3f);
-			}
-
-			index[QOI_COLOR_HASH(px) % 64] = px;
-		}
-
-		pixels[px_pos + 0] = px.rgba.r;
-		pixels[px_pos + 1] = px.rgba.g;
-		pixels[px_pos + 2] = px.rgba.b;
-		
-		if (channels == 4) {
-			pixels[px_pos + 3] = px.rgba.a;
-		}
-	}
-
-	return pixels;
-}
-
-#ifndef QOI_NO_STDIO
-#include <stdio.h>
-
-int qoi_write(const char *filename, const void *data, const qoi_desc *desc) {
-	FILE *f = fopen(filename, "wb");
-	int size, err;
-	void *encoded;
-
-	if (!f) {
-		return 0;
-	}
-
-	encoded = qoi_encode(data, desc, &size);
-	if (!encoded) {
-		fclose(f);
-		return 0;
-	}
-
-	fwrite(encoded, 1, size, f);
-	fflush(f);
-	err = ferror(f);
-	fclose(f);
-
-	QOI_FREE(encoded);
-	return err ? 0 : size;
-}
-
-void *qoi_read(const char *filename, qoi_desc *desc, int channels) {
-	FILE *f = fopen(filename, "rb");
-	int size, bytes_read;
-	void *pixels, *data;
-
-	if (!f) {
-		return NULL;
-	}
-
-	fseek(f, 0, SEEK_END);
-	size = ftell(f);
-	if (size <= 0 || fseek(f, 0, SEEK_SET) != 0) {
-		fclose(f);
-		return NULL;
-	}
-
-	data = QOI_MALLOC(size);
-	if (!data) {
-		fclose(f);
-		return NULL;
-	}
-
-	bytes_read = fread(data, 1, size, f);
-	fclose(f);
-	pixels = (bytes_read != size) ? NULL : qoi_decode(data, bytes_read, desc, channels);
-	QOI_FREE(data);
-	return pixels;
-}
-
-#endif /* QOI_NO_STDIO */
-#endif /* QOI_IMPLEMENTATION */

src/vendor/scope_guard.hpp

@@ -0,0 +1,190 @@
+/*
+ *  Created on: 13/02/2018
+ *      Author: ricab
+ *
+ * See README.md for documentation of this header's public interface.
+ */
+
+#ifndef SCOPE_GUARD_HPP_
+#define SCOPE_GUARD_HPP_
+
+#include <type_traits>
+#include <utility>
+
+#if __cplusplus >= 201703L
+#define SG_NODISCARD [[nodiscard]]
+#ifdef SG_REQUIRE_NOEXCEPT_IN_CPP17
+#define SG_REQUIRE_NOEXCEPT
+#endif
+#else
+#define SG_NODISCARD
+#endif
+
+namespace sg
+{
+  namespace detail
+  {
+    /* --- Some custom type traits --- */
+
+    // Type trait determining whether a type is callable with no arguments
+    template<typename T, typename = void>
+    struct is_noarg_callable_t
+      : public std::false_type
+    {}; // in general, false
+
+    template<typename T>
+    struct is_noarg_callable_t<T, decltype(std::declval<T&&>()())>
+      : public std::true_type
+    {}; // only true when call expression valid
+
+    // Type trait determining whether a no-argument callable returns void
+    template<typename T>
+    struct returns_void_t
+      : public std::is_same<void, decltype(std::declval<T&&>()())>
+    {};
+
+    /* Type trait determining whether a no-arg callable is nothrow invocable if
+    required. This is where SG_REQUIRE_NOEXCEPT logic is encapsulated. */
+    template<typename T>
+    struct is_nothrow_invocable_if_required_t
+      : public
+#ifdef SG_REQUIRE_NOEXCEPT
+          std::is_nothrow_invocable<T> /* Note: _r variants not enough to
+                                          confirm void return: any return can be
+                                          discarded so all returns are
+                                          compatible with void */
+#else
+          std::true_type
+#endif
+    {};
+
+    // logic AND of two or more type traits
+    template<typename A, typename B, typename... C>
+    struct and_t : public and_t<A, and_t<B, C...>>
+    {}; // for more than two arguments
+
+    template<typename A, typename B>
+    struct and_t<A, B> : public std::conditional<A::value, B, A>::type
+    {}; // for two arguments
+
+    // Type trait determining whether a type is a proper scope_guard callback.
+    template<typename T>
+    struct is_proper_sg_callback_t
+      : public and_t<is_noarg_callable_t<T>,
+                     returns_void_t<T>,
+                     is_nothrow_invocable_if_required_t<T>,
+                     std::is_nothrow_destructible<T>>
+    {};
+
+
+    /* --- The actual scope_guard template --- */
+
+    template<typename Callback,
+             typename = typename std::enable_if<
+               is_proper_sg_callback_t<Callback>::value>::type>
+    class scope_guard;
+
+
+    /* --- Now the friend maker --- */
+
+    template<typename Callback>
+    detail::scope_guard<Callback> make_scope_guard(Callback&& callback)
+    noexcept(std::is_nothrow_constructible<Callback, Callback&&>::value); /*
+    we need this in the inner namespace due to MSVC bugs preventing
+    sg::detail::scope_guard from befriending a sg::make_scope_guard
+    template instance in the parent namespace (see https://is.gd/xFfFhE). */
+
+
+    /* --- The template specialization that actually defines the class --- */
+
+    template<typename Callback>
+    class SG_NODISCARD scope_guard<Callback> final
+    {
+    public:
+      typedef Callback callback_type;
+
+      scope_guard(scope_guard&& other)
+      noexcept(std::is_nothrow_constructible<Callback, Callback&&>::value);
+
+      ~scope_guard() noexcept; // highlight noexcept dtor
+
+      void dismiss() noexcept;
+
+    public:
+      scope_guard() = delete;
+      scope_guard(const scope_guard&) = delete;
+      scope_guard& operator=(const scope_guard&) = delete;
+      scope_guard& operator=(scope_guard&&) = delete;
+
+    private:
+      explicit scope_guard(Callback&& callback)
+      noexcept(std::is_nothrow_constructible<Callback, Callback&&>::value); /*
+                                                      meant for friends only */
+
+      friend scope_guard<Callback> make_scope_guard<Callback>(Callback&&)
+      noexcept(std::is_nothrow_constructible<Callback, Callback&&>::value); /*
+      only make_scope_guard can create scope_guards from scratch (i.e. non-move)
+      */
+
+    private:
+      Callback m_callback;
+      bool m_active;
+
+    };
+
+  } // namespace detail
+
+
+  /* --- Now the single public maker function --- */
+
+  using detail::make_scope_guard; // see comment on declaration above
+
+} // namespace sg
+
+////////////////////////////////////////////////////////////////////////////////
+template<typename Callback>
+sg::detail::scope_guard<Callback>::scope_guard(Callback&& callback)
+noexcept(std::is_nothrow_constructible<Callback, Callback&&>::value)
+  : m_callback(std::forward<Callback>(callback)) /* use () instead of {} because
+    of DR 1467 (https://is.gd/WHmWuo), which still impacts older compilers
+    (e.g. GCC 4.x and clang <=3.6, see https://godbolt.org/g/TE9tPJ and
+    https://is.gd/Tsmh8G) */
+  , m_active{true}
+{}
+
+////////////////////////////////////////////////////////////////////////////////
+template<typename Callback>
+sg::detail::scope_guard<Callback>::scope_guard::~scope_guard() noexcept  /*
+need the extra injected-class-name here to make different compilers happy */
+{
+  if(m_active)
+    m_callback();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+template<typename Callback>
+sg::detail::scope_guard<Callback>::scope_guard(scope_guard&& other)
+noexcept(std::is_nothrow_constructible<Callback, Callback&&>::value)
+  : m_callback(std::forward<Callback>(other.m_callback)) // idem
+  , m_active{std::move(other.m_active)}
+{
+  other.m_active = false;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+template<typename Callback>
+inline void sg::detail::scope_guard<Callback>::dismiss() noexcept
+{
+  m_active = false;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+template<typename Callback>
+inline auto sg::detail::make_scope_guard(Callback&& callback)
+noexcept(std::is_nothrow_constructible<Callback, Callback&&>::value)
+-> detail::scope_guard<Callback>
+{
+  return detail::scope_guard<Callback>{std::forward<Callback>(callback)};
+}
+
+#endif /* SCOPE_GUARD_HPP_ */