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115 lines
2.7 KiB
115 lines
2.7 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkOpenGLStateCache.cxx,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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//*************************************************************************
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/*
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GlStateCache_Cache============================================
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This simply checks for redundancies in state-change requests and
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only calls the real OpenGL call if there has in fact been a change.
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This cannot, however, fix problems with the ordering of calls.
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*/
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#include "vtkWin32Header.h"
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#include "vtkSystemIncludes.h"
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#include "vtkOpenGLStateCache.h"
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// only one of these defined, so lets define it here
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vtkOpenGLStateCache *vtkOpenGLStateCache::CurrentGLCache = 0;
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vtkOpenGLStateCache::vtkOpenGLStateCache()
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{
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this->Initialize();
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}
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vtkOpenGLStateCache::~vtkOpenGLStateCache()
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{
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}
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void vtkOpenGLStateCache::Initialize()
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{ // when the context gets destroyed
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int i;
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for(i=0;i<8;i++)
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{
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Enable_GL_LIGHT_buckets[i]=-1;
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Enable_GL_CLIP_PLANE_buckets[i]=-1;
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}
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for(i=0;i<(0xDE1-0xB10);i++)
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{
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Enable_buckets[i]=-1;
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}
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AlphaFunc_bucket=-1.0;
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BlendFunc_bucket=(GLenum)0;
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DepthFunc_bucket=(GLenum)0;
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TexEnvf_MODE_bucket=-1.0;
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LightModeli_LIGHT_MODEL_TWO_SIDE_bucket=-1;
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LightModelfv_LIGHT_MODEL_AMBIENT_bucket[0]=-1.0f;
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for(i=0;i<8*4*8;i++)
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{
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Lightfv_buckets[i]=-1.0f;
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}
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for(i=0;i<8*8;i++)
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{
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Lightf_buckets[i]=-1.0f;
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}
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for(i=0;i<8;i++)
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{
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Lighti_SPOT_CUTOFF_buckets[i]=-1;
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}
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for(i=0;i<8*8*4;i++)
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{
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Materialfv_buckets[i]=-1.0f;
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}
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ShadeModel_bucket=(GLenum)0;
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for(i=0;i<4;i++)
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{
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ClearColor_buckets[i]=-1.0f;
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}
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ClearDepth_bucket=-1.0;
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DepthMask_bucket=-1.0f;
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CullFace_bucket=(GLenum)0;
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DrawBuffer_bucket=(GLenum)0;
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MatrixMode_bucket=(GLenum)0;
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for(i=0;i<4;i++)
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{
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Viewport_bucket[i]=-1;
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Scissor_bucket[i]=-1;
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}
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for(i=0;i<4*GL_MAX_CLIP_PLANES;i++)
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{
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ClipPlane_bucket[i]=-1.0;
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}
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for(i=0;i<8;i++)
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{
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ColorMaterial_bucket[i]=(GLenum)0;
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}
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PointSize_bucket=-1.0;
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LineWidth_bucket=-1.0;
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LineStipple_FACTOR_bucket=-1;
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LineStipple_PATTERN_bucket=0;
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DepthRange_NEAR_bucket=-1.0;
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DepthRange_FAR_bucket=-1.0;
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compile_and_exec=0;
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listnum=0;
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}
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