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OpenGL|libgui: Check EXT variants of functions not present in OpenGL 2.1
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IssueID #1977
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@skyjake
skyjake committed Sep 6, 2015
1 parent ea1d417 commit d49157c
Showing 1 changed file with 80 additions and 70 deletions.
150 changes: 80 additions & 70 deletions doomsday/sdk/libgui/src/graphics/glentrypoints.cpp
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Expand Up @@ -130,90 +130,100 @@ void getAllOpenGLEntryPoints()

#ifdef WIN32
# ifdef MSVC
# define GET_PROC_EXT(name) *((void**)&name) = wglGetProcAddress(#name)
# define GET_PROC_EXT_ALT(varName, altName) *((void**)&varName) = wglGetProcAddress(#altName)
# define GET_PROC_EXT(name) GET_PROC_EXT_ALT(name, name)
# else
# define GET_PROC_EXT(name) *reinterpret_cast<PROC *>(&name) = wglGetProcAddress(#name)
# define GET_PROC_EXT_ALT(varName, altName) *reinterpret_cast<PROC *>(&varName) = wglGetProcAddress(#altName)
# define GET_PROC_EXT(name) GET_PROC_EXT_ALT(name, name)
# endif
#else
# define GET_PROC_EXT(name) *((void (**)())&name) = glXGetProcAddress((GLubyte const *)#name)
# define GET_PROC_EXT_ALT(varName, altName) *((void (**)())&varName) = glXGetProcAddress((GLubyte const *)#altName)
# define GET_PROC_EXT(name) GET_PROC_EXT_ALT(name, name)
#endif

#define GET_PROC(name) GET_PROC_EXT(name); DENG2_ASSERT(name != 0); \
if(!name) { reportMissingEntryPoint(#name); } // must have

#define GET_PROC_ALT(name, altName) \
GET_PROC_EXT_ALT(name, altName); /* try the alternative name first */ \
if(!name) { \
GET_PROC_EXT(name); DENG2_ASSERT(name != 0); \
if(!name) { reportMissingEntryPoint(#name); } /* must have */ \
}

#ifdef LIBGUI_FETCH_GL_1_3
GET_PROC(glActiveTexture);
GET_PROC(glBlendEquation);
GET_PROC(glClientActiveTexture);
GET_PROC(glMultiTexCoord2f);
GET_PROC(glMultiTexCoord2fv);
GET_PROC (glActiveTexture);
GET_PROC (glBlendEquation);
GET_PROC (glClientActiveTexture);
GET_PROC (glMultiTexCoord2f);
GET_PROC (glMultiTexCoord2fv);
#endif

#ifdef WIN32
GET_PROC(wglGetExtensionsStringARB);
GET_PROC (wglGetExtensionsStringARB);
#endif

GET_PROC(glAttachShader);

GET_PROC(glBindAttribLocation);
GET_PROC(glBindBuffer);
GET_PROC(glBindFramebuffer);
GET_PROC(glBindRenderbuffer);
GET_PROC(glBlendFuncSeparate);
GET_PROC(glBufferData);

GET_PROC(glCheckFramebufferStatus);
GET_PROC(glCompileShader);
GET_PROC(glCreateProgram);
GET_PROC(glCreateShader);

GET_PROC(glDeleteBuffers);
GET_PROC(glDeleteFramebuffers);
GET_PROC(glDeleteProgram);
GET_PROC(glDeleteRenderbuffers);
GET_PROC(glDeleteShader);
GET_PROC(glDetachShader);
GET_PROC(glDisableVertexAttribArray);

GET_PROC(glEnableVertexAttribArray);

GET_PROC(glFramebufferRenderbuffer);
GET_PROC(glFramebufferTexture2D);

GET_PROC(glGenBuffers);
GET_PROC(glGenFramebuffers);
GET_PROC(glGenerateMipmap);
GET_PROC(glGenRenderbuffers);
GET_PROC(glGetAttribLocation);
GET_PROC(glGetProgramInfoLog);
GET_PROC(glGetProgramiv);
GET_PROC(glGetShaderInfoLog);
GET_PROC(glGetShaderiv);
GET_PROC(glGetShaderSource);
GET_PROC(glGetUniformLocation);

GET_PROC(glIsBuffer);
GET_PROC(glIsFramebuffer);
GET_PROC(glIsProgram);

GET_PROC(glLinkProgram);

GET_PROC(glRenderbufferStorage);

GET_PROC(glShaderSource);

GET_PROC(glUniform1f);
GET_PROC(glUniform1i);
GET_PROC(glUniform2f);
GET_PROC(glUniform3f);
GET_PROC(glUniform3fv);
GET_PROC(glUniform4f);
GET_PROC(glUniform4fv);
GET_PROC(glUniformMatrix3fv);
GET_PROC(glUniformMatrix4fv);
GET_PROC(glUseProgram);

GET_PROC(glVertexAttribPointer);
GET_PROC (glAttachShader);

GET_PROC (glBindAttribLocation);
GET_PROC (glBindBuffer);
GET_PROC_ALT(glBindFramebuffer, glBindFramebufferEXT);
GET_PROC_ALT(glBindRenderbuffer, glBindRenderbufferEXT);
GET_PROC_ALT(glBlendFuncSeparate, glBlendFuncSeparateEXT);
GET_PROC (glBufferData);

GET_PROC_ALT(glCheckFramebufferStatus, glCheckFramebufferStatusEXT);
GET_PROC (glCompileShader);
GET_PROC (glCreateProgram);
GET_PROC (glCreateShader);

GET_PROC (glDeleteBuffers);
GET_PROC_ALT(glDeleteFramebuffers, glDeleteFramebuffersEXT);
GET_PROC (glDeleteProgram);
GET_PROC_ALT(glDeleteRenderbuffers, glDeleteRenderbuffersEXT);
GET_PROC (glDeleteShader);
GET_PROC (glDetachShader);
GET_PROC (glDisableVertexAttribArray);

GET_PROC (glEnableVertexAttribArray);

GET_PROC_ALT(glFramebufferRenderbuffer, glFramebufferRenderbufferEXT);
GET_PROC_ALT(glFramebufferTexture2D, glFramebufferTexture2DEXT);

GET_PROC (glGenBuffers);
GET_PROC_ALT(glGenFramebuffers, glGenFramebuffersEXT);
GET_PROC_ALT(glGenerateMipmap, glGenerateMipmapEXT);
GET_PROC_ALT(glGenRenderbuffers, glGenRenderbuffersEXT);
GET_PROC (glGetAttribLocation);
GET_PROC (glGetProgramInfoLog);
GET_PROC (glGetProgramiv);
GET_PROC (glGetShaderInfoLog);
GET_PROC (glGetShaderiv);
GET_PROC (glGetShaderSource);
GET_PROC (glGetUniformLocation);

GET_PROC (glIsBuffer);
GET_PROC_ALT(glIsFramebuffer, glIsFramebufferEXT);
GET_PROC (glIsProgram);

GET_PROC (glLinkProgram);

GET_PROC_ALT(glRenderbufferStorage, glRenderbufferStorageEXT);

GET_PROC (glShaderSource);

GET_PROC (glUniform1f);
GET_PROC (glUniform1i);
GET_PROC (glUniform2f);
GET_PROC (glUniform3f);
GET_PROC (glUniform3fv);
GET_PROC (glUniform4f);
GET_PROC (glUniform4fv);
GET_PROC (glUniformMatrix3fv);
GET_PROC (glUniformMatrix4fv);
GET_PROC (glUseProgram);

GET_PROC (glVertexAttribPointer);

// Extensions:

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