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116 lines
3 KiB
C
116 lines
3 KiB
C
//-----------------------------------------------------------------------------
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// V12 Engine
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//
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// Copyright (c) 2001 GarageGames.Com
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// Portions Copyright (c) 2001 by Sierra Online, Inc.
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//-----------------------------------------------------------------------------
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#ifndef _PLATFORMGL_H_
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#define _PLATFORMGL_H_
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#include <gl.h>
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#include <glu.h>
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bool QGL_EXT_Init();
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struct GLState
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{
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bool suppARBMultitexture;
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bool suppPackedPixels;
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bool suppLockedArrays;
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bool suppTextureEnvCombine;
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bool suppVertexArrayRange;
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bool suppFogCoord;
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bool suppEdgeClamp;
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};
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extern GLState gGLState;
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#define UNSIGNED_SHORT_5_6_5 0x8363
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#define UNSIGNED_SHORT_5_6_5_REV 0x8364
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extern bool gOpenGLDisableCVA;
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extern bool gOpenGLDisableTEC;
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extern bool gOpenGLDisableARBMT;
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extern bool gOpenGLDisableFC;
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inline bool dglDoesSupportCompiledVertexArray()
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{
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return gGLState.suppLockedArrays && (gOpenGLDisableCVA == false);
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}
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inline bool dglDoesSupportTextureEnvCombine()
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{
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return gGLState.suppTextureEnvCombine && (gOpenGLDisableTEC == false);
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}
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inline bool dglDoesSupportARBMultitexture()
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{
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return gGLState.suppARBMultitexture && (gOpenGLDisableARBMT == false);
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}
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inline bool dglDoesSupportVertexArrayRange()
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{
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return gGLState.suppVertexArrayRange;
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}
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inline bool dglDoesSupportFogCoord()
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{
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return gGLState.suppFogCoord && (gOpenGLDisableFC == false);
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}
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inline bool dglDoesSupportEdgeClamp()
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{
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return gGLState.suppEdgeClamp;
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}
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//
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// until Apple exposes some extensions we'll need to stub them here
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//
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/* EXT_combine */
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#define GL_COMBINE_EXT 0x8570
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#define GL_COMBINE_RGB_EXT 0x8571
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#define GL_COMBINE_ALPHA_EXT 0x8572
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#define GL_SOURCE0_RGB_EXT 0x8580
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#define GL_SOURCE1_RGB_EXT 0x8581
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#define GL_SOURCE2_RGB_EXT 0x8582
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#define GL_SOURCE0_ALPHA_EXT 0x8588
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#define GL_SOURCE1_ALPHA_EXT 0x8589
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#define GL_SOURCE2_ALPHA_EXT 0x858A
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#define GL_OPERAND0_RGB_EXT 0x8590
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#define GL_OPERAND1_RGB_EXT 0x8591
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#define GL_OPERAND2_RGB_EXT 0x8592
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#define GL_OPERAND0_ALPHA_EXT 0x8598
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#define GL_OPERAND1_ALPHA_EXT 0x8599
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#define GL_OPERAND2_ALPHA_EXT 0x859A
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#define GL_RGB_SCALE_EXT 0x8573
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#define GL_ADD_SIGNED_EXT 0x8574
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#define GL_INTERPOLATE_EXT 0x8575
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#define GL_CONSTANT_EXT 0x8576
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#define GL_PRIMARY_COLOR_EXT 0x8577
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#define GL_PREVIOUS_EXT 0x8578
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/* EXT_fog_coord */
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#define GL_FOG_COORDINATE_SOURCE_EXT -1
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#define GL_FOG_COORDINATE_EXT -1
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#define GL_FRAGMENT_DEPTH_EXT -1
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#define GL_FOG_COORDINATE_ARRAY_EXT -1
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/* EXT_texture_edge_clamp */
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#define GL_CLAMP_TO_EDGE_EXT 0x812F
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// stubbed unsupported extensions
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inline void glFogCoordfEXT(GLfloat ) {}
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inline void glFogCoordPointerEXT(GLenum, GLsizei, void *) {}
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#endif // _PLATFORMGL_H_
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