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https://github.com/brl/mutter.git
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7a7dedebd5
OpenGL 3.0 deprecated querying of the GL_{RED,GREEN,BLUE}_BITS
constants, and the FBO extension provides a mechanism to query for the
color buffer sizes which *should* work even with the default
framebuffer. Unfortunately, this doesn't seem to hold for Mesa - so we
just use this for the offscreen CoglFramebuffer type, and we fall back
to glGetIntegerv() for the onscreen one.
http://bugzilla.openedhand.com/show_bug.cgi?id=2094
376 lines
16 KiB
C
376 lines
16 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2009 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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/* This is included multiple times with different definitions for
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these macros */
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COGL_FEATURE_BEGIN (offscreen, 255, 255,
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/* for some reason the ARB version of this
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extension doesn't have an ARB suffix for the
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functions */
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"ARB:\0EXT\0",
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"framebuffer_object\0",
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COGL_FEATURE_OFFSCREEN,
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0)
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COGL_FEATURE_FUNCTION (void, glGenRenderbuffers,
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(GLsizei n,
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GLuint *renderbuffers))
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COGL_FEATURE_FUNCTION (void, glDeleteRenderbuffers,
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(GLsizei n,
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const GLuint *renderbuffers))
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COGL_FEATURE_FUNCTION (void, glBindRenderbuffer,
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(GLenum target,
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GLuint renderbuffer))
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COGL_FEATURE_FUNCTION (void, glRenderbufferStorage,
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(GLenum target,
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GLenum internalformat,
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GLsizei width,
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GLsizei height))
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COGL_FEATURE_FUNCTION (void, glGenFramebuffers,
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(GLsizei n,
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GLuint *framebuffers))
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COGL_FEATURE_FUNCTION (void, glBindFramebuffer,
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(GLenum target,
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GLuint framebuffer))
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COGL_FEATURE_FUNCTION (void, glFramebufferTexture2D,
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(GLenum target,
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GLenum attachment,
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GLenum textarget,
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GLuint texture,
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GLint level))
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COGL_FEATURE_FUNCTION (void, glFramebufferRenderbuffer,
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(GLenum target,
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GLenum attachment,
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GLenum renderbuffertarget,
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GLuint renderbuffer))
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COGL_FEATURE_FUNCTION (GLenum, glCheckFramebufferStatus,
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(GLenum target))
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COGL_FEATURE_FUNCTION (void, glDeleteFramebuffers,
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(GLsizei n,
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const GLuint *framebuffers))
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COGL_FEATURE_FUNCTION (void, glGenerateMipmap,
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(GLenum target))
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COGL_FEATURE_FUNCTION (void, glGetFramebufferAttachmentParameteriv,
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(GLenum target,
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GLenum attachment,
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GLenum pname,
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GLint *params))
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COGL_FEATURE_END ()
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COGL_FEATURE_BEGIN (offscreen_blit, 255, 255,
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"EXT\0",
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"framebuffer_blit\0",
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COGL_FEATURE_OFFSCREEN_BLIT,
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0)
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COGL_FEATURE_FUNCTION (void, glBlitFramebuffer,
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(GLint srcX0,
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GLint srcY0,
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GLint srcX1,
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GLint srcY1,
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GLint dstX0,
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GLint dstY0,
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GLint dstX1,
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GLint dstY1,
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GLbitfield mask,
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GLenum filter))
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COGL_FEATURE_END ()
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COGL_FEATURE_BEGIN (offscreen_multisample, 255, 255,
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"EXT\0",
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"framebuffer_multisample\0",
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COGL_FEATURE_OFFSCREEN_MULTISAMPLE,
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0)
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COGL_FEATURE_FUNCTION (void, glRenderbufferStorageMultisample,
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(GLenum target,
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GLsizei samples,
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GLenum internalformat,
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GLsizei width,
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GLsizei height))
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COGL_FEATURE_END ()
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COGL_FEATURE_BEGIN (read_pixels_async, 2, 1,
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"EXT\0",
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"pixel_buffer_object\0",
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COGL_FEATURE_PBOS,
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0)
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COGL_FEATURE_END ()
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/* ARB_fragment_program */
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COGL_FEATURE_BEGIN (arbfp, 255, 255,
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"ARB\0",
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"fragment_program\0",
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0,
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COGL_FEATURE_PRIVATE_ARB_FP)
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COGL_FEATURE_FUNCTION (void, glGenPrograms,
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(GLsizei n,
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GLuint *programs))
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COGL_FEATURE_FUNCTION (void, glDeletePrograms,
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(GLsizei n,
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GLuint *programs))
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COGL_FEATURE_FUNCTION (void, glBindProgram,
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(GLenum target,
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GLuint program))
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COGL_FEATURE_FUNCTION (void, glProgramString,
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(GLenum target,
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GLenum format,
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GLsizei len,
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const void *program))
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COGL_FEATURE_FUNCTION (void, glProgramLocalParameter4fv,
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(GLenum target,
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GLuint index,
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GLfloat *params))
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COGL_FEATURE_END ()
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/* The function names in OpenGL 2.0 are different so we can't easily
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just check for GL 2.0 */
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COGL_FEATURE_BEGIN (shaders_glsl, 2, 0,
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"\0",
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"\0",
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COGL_FEATURE_SHADERS_GLSL,
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0)
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COGL_FEATURE_FUNCTION (GLuint, glCreateProgram,
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(void))
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COGL_FEATURE_FUNCTION (GLuint, glCreateShader,
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(GLenum shaderType))
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COGL_FEATURE_FUNCTION (void, glShaderSource,
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(GLuint shader,
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GLsizei count,
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const GLchar **string,
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const GLint *length))
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COGL_FEATURE_FUNCTION (void, glCompileShader,
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(GLuint shader))
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COGL_FEATURE_FUNCTION (void, glDeleteShader,
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(GLuint shader))
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COGL_FEATURE_FUNCTION (void, glAttachShader,
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(GLuint program,
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GLuint shader))
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COGL_FEATURE_FUNCTION (void, glLinkProgram,
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(GLuint program))
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COGL_FEATURE_FUNCTION (void, glUseProgram,
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(GLuint program))
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COGL_FEATURE_FUNCTION (GLint, glGetUniformLocation,
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(GLuint program,
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const GLchar *name))
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COGL_FEATURE_FUNCTION (void, glDeleteProgram,
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(GLuint program))
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COGL_FEATURE_FUNCTION (void, glGetShaderInfoLog,
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(GLuint shader,
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GLsizei maxLength,
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GLsizei *length,
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GLchar *infoLog))
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COGL_FEATURE_FUNCTION (void, glGetShaderiv,
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(GLuint shader,
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GLenum pname,
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GLint *params))
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COGL_FEATURE_FUNCTION (void, glVertexAttribPointer,
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(GLuint index,
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GLint size,
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GLenum type,
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GLboolean normalized,
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GLsizei stride,
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const GLvoid *pointer))
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COGL_FEATURE_FUNCTION (void, glEnableVertexAttribArray,
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(GLuint index))
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COGL_FEATURE_FUNCTION (void, glDisableVertexAttribArray,
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(GLuint index))
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COGL_FEATURE_FUNCTION (void, glUniform1f,
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(GLint location,
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GLfloat v0))
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COGL_FEATURE_FUNCTION (void, glUniform2f,
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(GLint location,
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GLfloat v0,
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GLfloat v1))
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COGL_FEATURE_FUNCTION (void, glUniform3f,
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(GLint location,
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GLfloat v0,
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GLfloat v1,
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GLfloat v2))
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COGL_FEATURE_FUNCTION (void, glUniform4f,
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(GLint location,
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GLfloat v0,
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GLfloat v1,
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GLfloat v2,
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GLfloat v3))
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COGL_FEATURE_FUNCTION (void, glUniform1fv,
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(GLint location,
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GLsizei count,
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const GLfloat * value))
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COGL_FEATURE_FUNCTION (void, glUniform2fv,
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(GLint location,
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GLsizei count,
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const GLfloat * value))
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COGL_FEATURE_FUNCTION (void, glUniform3fv,
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(GLint location,
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GLsizei count,
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const GLfloat * value))
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COGL_FEATURE_FUNCTION (void, glUniform4fv,
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(GLint location,
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GLsizei count,
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const GLfloat * value))
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COGL_FEATURE_FUNCTION (void, glUniform1i,
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(GLint location,
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GLint v0))
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COGL_FEATURE_FUNCTION (void, glUniform2i,
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(GLint location,
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GLint v0,
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GLint v1))
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COGL_FEATURE_FUNCTION (void, glUniform3i,
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(GLint location,
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GLint v0,
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GLint v1,
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GLint v2))
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COGL_FEATURE_FUNCTION (void, glUniform4i,
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(GLint location,
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GLint v0,
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GLint v1,
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GLint v2,
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GLint v3))
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COGL_FEATURE_FUNCTION (void, glUniform1iv,
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(GLint location,
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GLsizei count,
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const GLint * value))
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COGL_FEATURE_FUNCTION (void, glUniform2iv,
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(GLint location,
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GLsizei count,
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const GLint * value))
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COGL_FEATURE_FUNCTION (void, glUniform3iv,
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(GLint location,
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GLsizei count,
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const GLint * value))
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COGL_FEATURE_FUNCTION (void, glUniform4iv,
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(GLint location,
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GLsizei count,
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const GLint * value))
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COGL_FEATURE_FUNCTION (void, glUniformMatrix2fv,
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(GLint location,
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GLsizei count,
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GLboolean transpose,
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const GLfloat *value))
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COGL_FEATURE_FUNCTION (void, glUniformMatrix3fv,
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(GLint location,
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GLsizei count,
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GLboolean transpose,
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const GLfloat *value))
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COGL_FEATURE_FUNCTION (void, glUniformMatrix4fv,
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(GLint location,
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GLsizei count,
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GLboolean transpose,
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const GLfloat *value))
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COGL_FEATURE_END ()
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COGL_FEATURE_BEGIN (vbos, 1, 5,
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"ARB\0",
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"vertex_buffer_object\0",
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COGL_FEATURE_VBOS,
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0)
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COGL_FEATURE_FUNCTION (void, glGenBuffers,
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(GLuint n,
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GLuint *buffers))
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COGL_FEATURE_FUNCTION (void, glBindBuffer,
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(GLenum target,
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GLuint buffer))
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COGL_FEATURE_FUNCTION (void, glBufferData,
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(GLenum target,
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GLsizeiptr size,
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const GLvoid *data,
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GLenum usage))
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COGL_FEATURE_FUNCTION (void, glBufferSubData,
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(GLenum target,
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GLintptr offset,
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GLsizeiptr size,
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const GLvoid *data))
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COGL_FEATURE_FUNCTION (void *, glMapBuffer,
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(GLenum target,
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GLenum access))
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COGL_FEATURE_FUNCTION (GLboolean, glUnmapBuffer,
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(GLenum target))
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COGL_FEATURE_FUNCTION (void, glDeleteBuffers,
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(GLsizei n,
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const GLuint *buffers))
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COGL_FEATURE_END ()
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/* Cogl requires OpenGL 1.2 so we assume these functions are always
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available and don't bother setting any feature flags. We still have
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to fetch the function pointers though because under Windows you can
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not call any function defined after GL 1.1 directly */
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COGL_FEATURE_BEGIN (in_1_2, 1, 2,
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"\0",
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"\0",
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0,
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0)
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COGL_FEATURE_FUNCTION (void, glDrawRangeElements,
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(GLenum mode,
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GLuint start,
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GLuint end,
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GLsizei count,
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GLenum type,
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const GLvoid *indices))
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COGL_FEATURE_FUNCTION (void, glBlendEquation,
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(GLenum mode))
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COGL_FEATURE_FUNCTION (void, glBlendColor,
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(GLclampf red,
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GLclampf green,
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GLclampf blue,
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GLclampf alpha))
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COGL_FEATURE_END ()
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/* Available in GL 1.3 or the multitexture extension. These are
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required */
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COGL_FEATURE_BEGIN (multitexture, 1, 3,
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"ARB\0",
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"multitexture\0",
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0,
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0)
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COGL_FEATURE_FUNCTION (void, glActiveTexture,
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(GLenum texture))
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COGL_FEATURE_FUNCTION (void, glClientActiveTexture,
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(GLenum texture))
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COGL_FEATURE_END ()
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/* Optional, declared in 1.4 */
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COGL_FEATURE_BEGIN (blend_func_separate, 1, 4,
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"EXT\0",
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"blend_func_separate\0",
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0,
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0)
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COGL_FEATURE_FUNCTION (void, glBlendFuncSeparate,
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(GLenum srcRGB,
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GLenum dstRGB,
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GLenum srcAlpha,
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GLenum dstAlpha))
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COGL_FEATURE_END ()
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/* Optional, declared in 2.0 */
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COGL_FEATURE_BEGIN (blend_equation_separate, 2, 0,
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"EXT\0",
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"blend_equation_separate\0",
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0,
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0)
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COGL_FEATURE_FUNCTION (void, glBlendEquationSeparate,
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(GLenum modeRGB,
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GLenum modeAlpha))
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COGL_FEATURE_END ()
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