egutierrez
4a95407d0e
- cpp/functions/gfx/gl_loader.{h,cpp,md}: mini loader para OpenGL 2.0+
(Linux no-op via GL_GLEXT_PROTOTYPES, Windows wglGetProcAddress)
- Portar gl_shader/gl_framebuffer/fullscreen_quad/shader_canvas al loader
- CMakeLists: WIN32_EXECUTABLE para lanzar sin consola en Windows
- apps/shaders_lab/shaders_lab.exe: binario PE32+ precompilado
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
78 lines
3.5 KiB
C++
78 lines
3.5 KiB
C++
#pragma once
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#ifdef _WIN32
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN
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#endif
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#include <windows.h>
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#include <GL/gl.h>
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#include <GL/glext.h>
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extern PFNGLATTACHSHADERPROC fn_glAttachShader;
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extern PFNGLBINDBUFFERPROC fn_glBindBuffer;
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extern PFNGLBINDFRAMEBUFFERPROC fn_glBindFramebuffer;
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extern PFNGLBINDVERTEXARRAYPROC fn_glBindVertexArray;
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extern PFNGLCOMPILESHADERPROC fn_glCompileShader;
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extern PFNGLCREATEPROGRAMPROC fn_glCreateProgram;
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extern PFNGLCREATESHADERPROC fn_glCreateShader;
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extern PFNGLDELETEBUFFERSPROC fn_glDeleteBuffers;
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extern PFNGLDELETEFRAMEBUFFERSPROC fn_glDeleteFramebuffers;
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extern PFNGLDELETEPROGRAMPROC fn_glDeleteProgram;
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extern PFNGLDELETESHADERPROC fn_glDeleteShader;
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extern PFNGLDELETEVERTEXARRAYSPROC fn_glDeleteVertexArrays;
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extern PFNGLFRAMEBUFFERTEXTURE2DPROC fn_glFramebufferTexture2D;
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extern PFNGLGENBUFFERSPROC fn_glGenBuffers;
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extern PFNGLGENFRAMEBUFFERSPROC fn_glGenFramebuffers;
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extern PFNGLGENVERTEXARRAYSPROC fn_glGenVertexArrays;
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extern PFNGLGETPROGRAMINFOLOGPROC fn_glGetProgramInfoLog;
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extern PFNGLGETPROGRAMIVPROC fn_glGetProgramiv;
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extern PFNGLGETSHADERINFOLOGPROC fn_glGetShaderInfoLog;
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extern PFNGLGETSHADERIVPROC fn_glGetShaderiv;
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extern PFNGLGETUNIFORMLOCATIONPROC fn_glGetUniformLocation;
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extern PFNGLLINKPROGRAMPROC fn_glLinkProgram;
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extern PFNGLSHADERSOURCEPROC fn_glShaderSource;
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extern PFNGLUNIFORM1FPROC fn_glUniform1f;
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extern PFNGLUNIFORM2FPROC fn_glUniform2f;
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extern PFNGLUSEPROGRAMPROC fn_glUseProgram;
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#define glAttachShader fn_glAttachShader
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#define glBindBuffer fn_glBindBuffer
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#define glBindFramebuffer fn_glBindFramebuffer
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#define glBindVertexArray fn_glBindVertexArray
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#define glCompileShader fn_glCompileShader
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#define glCreateProgram fn_glCreateProgram
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#define glCreateShader fn_glCreateShader
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#define glDeleteBuffers fn_glDeleteBuffers
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#define glDeleteFramebuffers fn_glDeleteFramebuffers
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#define glDeleteProgram fn_glDeleteProgram
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#define glDeleteShader fn_glDeleteShader
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#define glDeleteVertexArrays fn_glDeleteVertexArrays
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#define glFramebufferTexture2D fn_glFramebufferTexture2D
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#define glGenBuffers fn_glGenBuffers
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#define glGenFramebuffers fn_glGenFramebuffers
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#define glGenVertexArrays fn_glGenVertexArrays
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#define glGetProgramInfoLog fn_glGetProgramInfoLog
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#define glGetProgramiv fn_glGetProgramiv
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#define glGetShaderInfoLog fn_glGetShaderInfoLog
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#define glGetShaderiv fn_glGetShaderiv
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#define glGetUniformLocation fn_glGetUniformLocation
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#define glLinkProgram fn_glLinkProgram
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#define glShaderSource fn_glShaderSource
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#define glUniform1f fn_glUniform1f
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#define glUniform2f fn_glUniform2f
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#define glUseProgram fn_glUseProgram
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#else
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#define GL_GLEXT_PROTOTYPES
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#include <GL/gl.h>
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#include <GL/glext.h>
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#endif
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namespace fn::gfx {
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// Load OpenGL 2.0+ function pointers. On Linux it's a no-op (symbols resolved
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// statically via GL_GLEXT_PROTOTYPES). On Windows it uses wglGetProcAddress;
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// the GL context must be current before calling.
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bool gl_loader_init();
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} // namespace fn::gfx
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