67 lines
2.1 KiB
Plaintext
67 lines
2.1 KiB
Plaintext
// glimp_stub.cpp.m4
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// stub gl/glX APIs
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#include "idlib/precompiled.h"
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#include "renderer/tr_local.h"
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#pragma hdrstop
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dnl =====================================================
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dnl utils
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dnl =====================================================
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define(`forloop',
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`pushdef(`$1', `$2')_forloop(`$1', `$2', `$3', `$4')popdef(`$1')')
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define(`_forloop',
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`$4`'ifelse($1, `$3', ,
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`define(`$1', incr($1))_forloop(`$1', `$2', `$3', `$4')')')
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dnl =====================================================
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dnl the gl wgl glX definitions
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dnl =====================================================
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include(../gllog/gl_def.m4)
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dnl =====================================================
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dnl qgl stubs
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dnl there is a number of functions for which we have special case code
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dnl =====================================================
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define(`override_GetError', `')
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define(`override_GenLists', `')
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define(`override_GetIntegerv', `')
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define(`override_GetString', `')
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define(`instance_funcptr', ``$1' gl`$2'(`$3'){}')
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define(`try_instance_funcptr', `ifdef(`override_'$2, ,`instance_funcptr(`$1', `$2', `$3')')')
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forloop(`i', gl_start, gl_end, `try_instance_funcptr(indir(`f'i`_ret'), indir(`f'i`_name'), indir(`f'i`_params'))
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')
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dnl =====================================================
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dnl glX stubs
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dnl =====================================================
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define(`override_GetProcAddressARB', `')
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define(`instance_funcptr', ``$1' glX`$2'(`$3'){}')
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define(`try_instance_funcptr', `ifdef(`override_'$2, ,`instance_funcptr(`$1', `$2', `$3')')')
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forloop(`i', glX_start, glX_end, `try_instance_funcptr(indir(`f'i`_ret'), indir(`f'i`_name'), indir(`f'i`_params'))
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')
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GLenum glGetError(void){return 0;}
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GLuint glGenLists(GLsizei range){return 0;}
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void glGetIntegerv(GLenum pname, GLint *params){
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switch( pname ) {
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case GL_MAX_TEXTURE_SIZE: *params = 1024; break;
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case GL_MAX_TEXTURE_UNITS_ARB: *params = 2; break;
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default: *params = 0; break;
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}
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}
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const GLubyte * glGetString(GLenum name){
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switch( name ) {
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case GL_EXTENSIONS: return (GLubyte *)"GL_ARB_multitexture GL_ARB_texture_env_combine GL_ARB_texture_cube_map GL_ARB_texture_env_dot3";
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}
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return (const GLubyte *)"";
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}
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