233 lines
11 KiB
C
233 lines
11 KiB
C
/*
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** gl-fun.h
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**
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** This file is part of mkxp.
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**
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** Copyright (C) 2014 Jonas Kulla <Nyocurio@gmail.com>
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**
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** mkxp is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 2 of the License, or
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** (at your option) any later version.
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**
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** mkxp is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with mkxp. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GLFUN_H
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#define GLFUN_H
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#ifdef GLES2_HEADER
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#include <SDL_opengles2.h>
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#define APIENTRYP GL_APIENTRYP
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#else
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#include <SDL_opengl.h>
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#endif
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/* Etc */
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typedef GLenum (APIENTRYP _PFNGLGETERRORPROC) (void);
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typedef void (APIENTRYP _PFNGLCLEARCOLORPROC) (GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
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typedef void (APIENTRYP _PFNGLCLEARPROC) (GLbitfield mask);
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typedef const GLubyte * (APIENTRYP _PFNGLGETSTRINGPROC) (GLenum name);
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typedef void (APIENTRYP _PFNGLGETINTEGERVPROC) (GLenum pname, GLint *params);
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typedef void (APIENTRYP _PFNGLPIXELSTOREIPROC) (GLenum pname, GLint param);
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typedef void (APIENTRYP _PFNGLREADPIXELSPROC) (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
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typedef void (APIENTRYP _PFNGLENABLEPROC) (GLenum cap);
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typedef void (APIENTRYP _PFNGLDISABLEPROC) (GLenum cap);
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typedef void (APIENTRYP _PFNGLSCISSORPROC) (GLint x, GLint y, GLsizei width, GLsizei height);
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typedef void (APIENTRYP _PFNGLVIEWPORTPROC) (GLint x, GLint y, GLsizei width, GLsizei height);
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typedef void (APIENTRYP _PFNGLBLENDFUNCPROC) (GLenum sfactor, GLenum dfactor);
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typedef void (APIENTRYP _PFNGLBLENDFUNCSEPARATEPROC) (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha);
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typedef void (APIENTRYP _PFNGLBLENDEQUATIONPROC) (GLenum mode);
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typedef void (APIENTRYP _PFNGLDRAWELEMENTSPROC) (GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
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/* Texture */
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typedef void (APIENTRYP _PFNGLGENTEXTURESPROC) (GLsizei n, GLuint *textures);
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typedef void (APIENTRYP _PFNGLDELETETEXTURESPROC) (GLsizei n, const GLuint *textures);
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typedef void (APIENTRYP _PFNGLBINDTEXTUREPROC) (GLenum target, GLuint texture);
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typedef void (APIENTRYP _PFNGLTEXIMAGE2DPROC) (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
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typedef void (APIENTRYP _PFNGLTEXSUBIMAGE2DPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
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typedef void (APIENTRYP _PFNGLTEXPARAMETERIPROC) (GLenum target, GLenum pname, GLint param);
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typedef void (APIENTRYP _PFNGLACTIVETEXTUREPROC) (GLenum texture);
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/* Debugging */
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typedef void (APIENTRY * _GLDEBUGPROC) (GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar* message, const void *userParam);
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typedef void (APIENTRYP _PFNGLDEBUGMESSAGECALLBACKPROC) (_GLDEBUGPROC callback, const void *userParam);
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typedef void (APIENTRYP _PFNGLSTRINGMARKERPROC) (GLsizei len, const GLvoid *string);
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/* Buffer object */
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typedef void (APIENTRYP _PFNGLGENBUFFERSPROC) (GLsizei n, GLuint* buffers);
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typedef void (APIENTRYP _PFNGLDELETEBUFFERSPROC) (GLsizei n, const GLuint* buffers);
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typedef void (APIENTRYP _PFNGLBINDBUFFERPROC) (GLenum target, GLuint buffer);
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typedef void (APIENTRYP _PFNGLBUFFERDATAPROC) (GLenum target, GLsizeiptr size, const GLvoid* data, GLenum usage);
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typedef void (APIENTRYP _PFNGLBUFFERSUBDATAPROC) (GLenum target, GLintptr offset, GLsizeiptr size, const GLvoid* data);
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/* Shader */
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typedef GLuint (APIENTRYP _PFNGLCREATESHADERPROC) (GLenum type);
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typedef void (APIENTRYP _PFNGLDELETESHADERPROC) (GLuint shader);
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typedef void (APIENTRYP _PFNGLSHADERSOURCEPROC) (GLuint shader, GLsizei count, const GLchar* const* strings, const GLint* lengths);
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typedef void (APIENTRYP _PFNGLCOMPILESHADERPROC) (GLuint shader);
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typedef void (APIENTRYP _PFNGLATTACHSHADERPROC) (GLuint program, GLuint shader);
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typedef void (APIENTRYP _PFNGLGETSHADERIVPROC) (GLuint shader, GLenum pname, GLint* param);
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typedef void (APIENTRYP _PFNGLGETSHADERINFOLOGPROC) (GLuint shader, GLsizei bufSize, GLsizei* length, GLchar* infoLog);
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/* Program */
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typedef GLuint (APIENTRYP _PFNGLCREATEPROGRAMPROC) (void);
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typedef void (APIENTRYP _PFNGLDELETEPROGRAMPROC) (GLuint program);
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typedef void (APIENTRYP _PFNGLUSEPROGRAMPROC) (GLuint program);
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typedef void (APIENTRYP _PFNGLLINKPROGRAMPROC) (GLuint program);
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typedef void (APIENTRYP _PFNGLGETPROGRAMIVPROC) (GLuint program, GLenum pname, GLint* param);
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typedef void (APIENTRYP _PFNGLGETPROGRAMINFOLOGPROC) (GLuint program, GLsizei bufSize, GLsizei* length, GLchar* infoLog);
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/* Uniform */
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typedef GLint (APIENTRYP _PFNGLGETUNIFORMLOCATIONPROC) (GLuint program, const GLchar* name);
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typedef void (APIENTRYP _PFNGLUNIFORM1FPROC) (GLint location, GLfloat v0);
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typedef void (APIENTRYP _PFNGLUNIFORM2FPROC) (GLint location, GLfloat v0, GLfloat v1);
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typedef void (APIENTRYP _PFNGLUNIFORM4FPROC) (GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
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typedef void (APIENTRYP _PFNGLUNIFORM1IPROC) (GLint location, GLint v0);
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typedef void (APIENTRYP _PFNGLUNIFORMMATRIX4FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat* value);
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/* Vertex attribute */
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typedef void (APIENTRYP _PFNGLBINDATTRIBLOCATIONPROC) (GLuint program, GLuint index, const GLchar* name);
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typedef void (APIENTRYP _PFNGLENABLEVERTEXATTRIBARRAYPROC) (GLuint);
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typedef void (APIENTRYP _PFNGLDISABLEVERTEXATTRIBARRAYPROC) (GLuint);
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typedef void (APIENTRYP _PFNGLVERTEXATTRIBPOINTERPROC) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid* pointer);
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/* Framebuffer object */
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typedef void (APIENTRYP _PFNGLGENFRAMEBUFFERSPROC) (GLsizei n, GLuint* framebuffers);
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typedef void (APIENTRYP _PFNGLDELETEFRAMEBUFFERSPROC) (GLsizei n, const GLuint* framebuffers);
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typedef void (APIENTRYP _PFNGLBINDFRAMEBUFFERPROC) (GLenum target, GLuint framebuffer);
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typedef void (APIENTRYP _PFNGLFRAMEBUFFERTEXTURE2DPROC) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
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typedef void (APIENTRYP _PFNGLBLITFRAMEBUFFERPROC) (GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter);
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/* Vertex array object */
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typedef void (APIENTRYP _PFNGLGENVERTEXARRAYSPROC) (GLsizei n, GLuint* arrays);
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typedef void (APIENTRYP _PFNGLDELETEVERTEXARRAYSPROC) (GLsizei n, const GLuint* arrays);
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typedef void (APIENTRYP _PFNGLBINDVERTEXARRAYPROC) (GLuint array);
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/* GLES only */
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typedef void (APIENTRYP _PFNGLRELEASESHADERCOMPILERPROC) (void);
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#ifdef GLES2_HEADER
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#define GL_NUM_EXTENSIONS 0x821D
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#define GL_READ_FRAMEBUFFER 0x8CA8
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#define GL_DRAW_FRAMEBUFFER 0x8CA9
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#define GL_UNPACK_ROW_LENGTH 0x0CF2
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#define GL_UNPACK_SKIP_PIXELS 0x0CF4
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#define GL_UNPACK_SKIP_ROWS 0x0CF3
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#endif
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#define GL_20_FUN \
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/* Etc */ \
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GL_FUN(GetError, _PFNGLGETERRORPROC) \
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GL_FUN(ClearColor, _PFNGLCLEARCOLORPROC) \
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GL_FUN(Clear, _PFNGLCLEARPROC) \
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GL_FUN(GetString, _PFNGLGETSTRINGPROC) \
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GL_FUN(GetIntegerv, _PFNGLGETINTEGERVPROC) \
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GL_FUN(PixelStorei, _PFNGLPIXELSTOREIPROC) \
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GL_FUN(ReadPixels, _PFNGLREADPIXELSPROC) \
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GL_FUN(Enable, _PFNGLENABLEPROC) \
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GL_FUN(Disable, _PFNGLDISABLEPROC) \
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GL_FUN(Scissor, _PFNGLSCISSORPROC) \
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GL_FUN(Viewport, _PFNGLVIEWPORTPROC) \
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GL_FUN(BlendFunc, _PFNGLBLENDFUNCPROC) \
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GL_FUN(BlendFuncSeparate, _PFNGLBLENDFUNCSEPARATEPROC) \
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GL_FUN(BlendEquation, _PFNGLBLENDEQUATIONPROC) \
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GL_FUN(DrawElements, _PFNGLDRAWELEMENTSPROC) \
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/* Texture */ \
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GL_FUN(GenTextures, _PFNGLGENTEXTURESPROC) \
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GL_FUN(DeleteTextures, _PFNGLDELETETEXTURESPROC) \
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GL_FUN(BindTexture, _PFNGLBINDTEXTUREPROC) \
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GL_FUN(TexImage2D, _PFNGLTEXIMAGE2DPROC) \
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GL_FUN(TexSubImage2D, _PFNGLTEXSUBIMAGE2DPROC) \
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GL_FUN(TexParameteri, _PFNGLTEXPARAMETERIPROC) \
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GL_FUN(ActiveTexture, _PFNGLACTIVETEXTUREPROC) \
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/* Buffer object */ \
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GL_FUN(GenBuffers, _PFNGLGENBUFFERSPROC) \
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GL_FUN(DeleteBuffers, _PFNGLDELETEBUFFERSPROC) \
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GL_FUN(BindBuffer, _PFNGLBINDBUFFERPROC) \
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GL_FUN(BufferData, _PFNGLBUFFERDATAPROC) \
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GL_FUN(BufferSubData, _PFNGLBUFFERSUBDATAPROC) \
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/* Shader */ \
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GL_FUN(CreateShader, _PFNGLCREATESHADERPROC) \
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GL_FUN(DeleteShader, _PFNGLDELETESHADERPROC) \
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GL_FUN(ShaderSource, _PFNGLSHADERSOURCEPROC) \
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GL_FUN(CompileShader, _PFNGLCOMPILESHADERPROC) \
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GL_FUN(AttachShader, _PFNGLATTACHSHADERPROC) \
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GL_FUN(GetShaderiv, _PFNGLGETSHADERIVPROC) \
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GL_FUN(GetShaderInfoLog, _PFNGLGETSHADERINFOLOGPROC) \
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/* Program */ \
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GL_FUN(CreateProgram, _PFNGLCREATEPROGRAMPROC) \
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GL_FUN(DeleteProgram, _PFNGLDELETEPROGRAMPROC) \
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GL_FUN(UseProgram, _PFNGLUSEPROGRAMPROC) \
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GL_FUN(LinkProgram, _PFNGLLINKPROGRAMPROC) \
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GL_FUN(GetProgramiv, _PFNGLGETPROGRAMIVPROC) \
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GL_FUN(GetProgramInfoLog, _PFNGLGETPROGRAMINFOLOGPROC) \
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/* Uniform */ \
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GL_FUN(GetUniformLocation, _PFNGLGETUNIFORMLOCATIONPROC) \
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GL_FUN(Uniform1f, _PFNGLUNIFORM1FPROC) \
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GL_FUN(Uniform2f, _PFNGLUNIFORM2FPROC) \
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GL_FUN(Uniform4f, _PFNGLUNIFORM4FPROC) \
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GL_FUN(Uniform1i, _PFNGLUNIFORM1IPROC) \
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GL_FUN(UniformMatrix4fv, _PFNGLUNIFORMMATRIX4FVPROC) \
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/* Vertex attribute */ \
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GL_FUN(BindAttribLocation, _PFNGLBINDATTRIBLOCATIONPROC) \
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GL_FUN(EnableVertexAttribArray, _PFNGLENABLEVERTEXATTRIBARRAYPROC) \
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GL_FUN(DisableVertexAttribArray, _PFNGLDISABLEVERTEXATTRIBARRAYPROC) \
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GL_FUN(VertexAttribPointer, _PFNGLVERTEXATTRIBPOINTERPROC)
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#define GL_ES_FUN \
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GL_FUN(ReleaseShaderCompiler, _PFNGLRELEASESHADERCOMPILERPROC)
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#define GL_FBO_FUN \
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/* Framebuffer object */ \
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GL_FUN(GenFramebuffers, _PFNGLGENFRAMEBUFFERSPROC) \
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GL_FUN(DeleteFramebuffers, _PFNGLDELETEFRAMEBUFFERSPROC) \
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GL_FUN(BindFramebuffer, _PFNGLBINDFRAMEBUFFERPROC) \
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GL_FUN(FramebufferTexture2D, _PFNGLFRAMEBUFFERTEXTURE2DPROC)
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#define GL_FBO_BLIT_FUN \
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GL_FUN(BlitFramebuffer, _PFNGLBLITFRAMEBUFFERPROC)
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#define GL_VAO_FUN \
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/* Vertex array object */ \
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GL_FUN(GenVertexArrays, _PFNGLGENVERTEXARRAYSPROC) \
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GL_FUN(DeleteVertexArrays, _PFNGLDELETEVERTEXARRAYSPROC) \
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GL_FUN(BindVertexArray, _PFNGLBINDVERTEXARRAYPROC)
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#define GL_DEBUG_KHR_FUN \
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GL_FUN(DebugMessageCallback, _PFNGLDEBUGMESSAGECALLBACKPROC)
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#define GL_GREMEMDY_FUN \
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GL_FUN(StringMarker, _PFNGLSTRINGMARKERPROC)
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struct GLFunctions
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{
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#define GL_FUN(name, type) type name;
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GL_20_FUN
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GL_ES_FUN
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GL_FBO_FUN
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GL_FBO_BLIT_FUN
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GL_VAO_FUN
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GL_DEBUG_KHR_FUN
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GL_GREMEMDY_FUN
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bool glsles;
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bool unpack_subimage;
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bool npot_repeat;
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#undef GL_FUN
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};
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extern GLFunctions gl;
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void initGLFunctions();
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#endif // GLFUN_H
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