state.c

Mesa is an open-source implementation of the OpenGL specification - a system for rendering interacti

/*
 * Mesa 3-D graphics library
 * Version:  6.5.1
 *
 * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */


/**
 * \file state.c
 * State management.
 * 
 * This file manages recalculation of derived values in the __GLcontextRec.
 * Also, this is where we initialize the API dispatch table.
 */

#include "glheader.h"
#include "accum.h"
#include "api_loopback.h"
#if FEATURE_ARB_vertex_program || FEATURE_ARB_fragment_program
#include "shader/arbprogram.h"
#endif
#if FEATURE_ATI_fragment_shader
#include "shader/atifragshader.h"
#endif
#include "attrib.h"
#include "blend.h"
#if FEATURE_ARB_vertex_buffer_object
#include "bufferobj.h"
#endif
#include "arrayobj.h"
#include "buffers.h"
#include "clip.h"
#include "colortab.h"
#include "context.h"
#include "convolve.h"
#include "depth.h"
#include "dlist.h"
#include "drawpix.h"
#include "enable.h"
#include "eval.h"
#include "get.h"
#include "feedback.h"
#include "fog.h"
#if FEATURE_EXT_framebuffer_object
#include "fbobject.h"
#endif
#include "framebuffer.h"
#include "hint.h"
#include "histogram.h"
#include "imports.h"
#include "light.h"
#include "lines.h"
#include "macros.h"
#include "matrix.h"
#include "pixel.h"
#include "points.h"
#include "polygon.h"
#if FEATURE_ARB_occlusion_query || FEATURE_EXT_timer_query
#include "queryobj.h"
#endif
#include "rastpos.h"
#include "state.h"
#include "stencil.h"
#include "teximage.h"
#include "texobj.h"
#include "texstate.h"
#include "mtypes.h"
#include "varray.h"
#if FEATURE_NV_vertex_program
#include "shader/nvprogram.h"
#endif
#if FEATURE_NV_fragment_program
#include "shader/nvprogram.h"
#include "shader/program.h"
#include "texenvprogram.h"
#endif
#if FEATURE_ARB_shader_objects
#include "shaders.h"
#endif
#include "debug.h"
#include "glapi/dispatch.h"



/**
 * Initialize a dispatch table with pointers to Mesa's immediate-mode
 * commands.
 *
 * Pointers to glBegin()/glEnd() object commands and a few others
 * are provided via the GLvertexformat interface.
 *
 * \param ctx  GL context to which \c exec belongs.
 * \param exec dispatch table.
 */
void
_mesa_init_exec_table(struct _glapi_table *exec)
{
#if _HAVE_FULL_GL
   _mesa_loopback_init_api_table( exec );
#endif

   /* load the dispatch slots we understand */
   SET_AlphaFunc(exec, _mesa_AlphaFunc);
   SET_BlendFunc(exec, _mesa_BlendFunc);
   SET_Clear(exec, _mesa_Clear);
   SET_ClearColor(exec, _mesa_ClearColor);
   SET_ClearStencil(exec, _mesa_ClearStencil);
   SET_ColorMask(exec, _mesa_ColorMask);
   SET_CullFace(exec, _mesa_CullFace);
   SET_Disable(exec, _mesa_Disable);
   SET_DrawBuffer(exec, _mesa_DrawBuffer);
   SET_Enable(exec, _mesa_Enable);
   SET_Finish(exec, _mesa_Finish);
   SET_Flush(exec, _mesa_Flush);
   SET_FrontFace(exec, _mesa_FrontFace);
   SET_Frustum(exec, _mesa_Frustum);
   SET_GetError(exec, _mesa_GetError);
   SET_GetFloatv(exec, _mesa_GetFloatv);
   SET_GetString(exec, _mesa_GetString);
   SET_InitNames(exec, _mesa_InitNames);
   SET_LineStipple(exec, _mesa_LineStipple);
   SET_LineWidth(exec, _mesa_LineWidth);
   SET_LoadIdentity(exec, _mesa_LoadIdentity);
   SET_LoadMatrixf(exec, _mesa_LoadMatrixf);
   SET_LoadName(exec, _mesa_LoadName);
   SET_LogicOp(exec, _mesa_LogicOp);
   SET_MatrixMode(exec, _mesa_MatrixMode);
   SET_MultMatrixf(exec, _mesa_MultMatrixf);
   SET_Ortho(exec, _mesa_Ortho);
   SET_PixelStorei(exec, _mesa_PixelStorei);
   SET_PopMatrix(exec, _mesa_PopMatrix);
   SET_PopName(exec, _mesa_PopName);
   SET_PushMatrix(exec, _mesa_PushMatrix);
   SET_PushName(exec, _mesa_PushName);
   SET_RasterPos2f(exec, _mesa_RasterPos2f);
   SET_RasterPos2fv(exec, _mesa_RasterPos2fv);
   SET_RasterPos2i(exec, _mesa_RasterPos2i);
   SET_RasterPos2iv(exec, _mesa_RasterPos2iv);
   SET_ReadBuffer(exec, _mesa_ReadBuffer);
   SET_RenderMode(exec, _mesa_RenderMode);
   SET_Rotatef(exec, _mesa_Rotatef);
   SET_Scalef(exec, _mesa_Scalef);
   SET_Scissor(exec, _mesa_Scissor);
   SET_SelectBuffer(exec, _mesa_SelectBuffer);
   SET_ShadeModel(exec, _mesa_ShadeModel);
   SET_StencilFunc(exec, _mesa_StencilFunc);
   SET_StencilMask(exec, _mesa_StencilMask);
   SET_StencilOp(exec, _mesa_StencilOp);
   SET_TexEnvfv(exec, _mesa_TexEnvfv);
   SET_TexEnvi(exec, _mesa_TexEnvi);
   SET_TexImage2D(exec, _mesa_TexImage2D);
   SET_TexParameteri(exec, _mesa_TexParameteri);
   SET_Translatef(exec, _mesa_Translatef);
   SET_Viewport(exec, _mesa_Viewport);
#if _HAVE_FULL_GL
   SET_Accum(exec, _mesa_Accum);
   SET_Bitmap(exec, _mesa_Bitmap);
   SET_CallList(exec, _mesa_CallList);
   SET_CallLists(exec, _mesa_CallLists);
   SET_ClearAccum(exec, _mesa_ClearAccum);
   SET_ClearDepth(exec, _mesa_ClearDepth);
   SET_ClearIndex(exec, _mesa_ClearIndex);
   SET_ClipPlane(exec, _mesa_ClipPlane);
   SET_ColorMaterial(exec, _mesa_ColorMaterial);
   SET_CopyPixels(exec, _mesa_CopyPixels);
   SET_CullParameterfvEXT(exec, _mesa_CullParameterfvEXT);
   SET_CullParameterdvEXT(exec, _mesa_CullParameterdvEXT);
   SET_DeleteLists(exec, _mesa_DeleteLists);
   SET_DepthFunc(exec, _mesa_DepthFunc);
   SET_DepthMask(exec, _mesa_DepthMask);
   SET_DepthRange(exec, _mesa_DepthRange);
   SET_DrawPixels(exec, _mesa_DrawPixels);
   SET_EndList(exec, _mesa_EndList);
   SET_FeedbackBuffer(exec, _mesa_FeedbackBuffer);
   SET_FogCoordPointerEXT(exec, _mesa_FogCoordPointerEXT);
   SET_Fogf(exec, _mesa_Fogf);
   SET_Fogfv(exec, _mesa_Fogfv);
   SET_Fogi(exec, _mesa_Fogi);
   SET_Fogiv(exec, _mesa_Fogiv);
   SET_GenLists(exec, _mesa_GenLists);
   SET_GetClipPlane(exec, _mesa_GetClipPlane);
   SET_GetBooleanv(exec, _mesa_GetBooleanv);
   SET_GetDoublev(exec, _mesa_GetDoublev);
   SET_GetIntegerv(exec, _mesa_GetIntegerv);
   SET_GetLightfv(exec, _mesa_GetLightfv);
   SET_GetLightiv(exec, _mesa_GetLightiv);
   SET_GetMapdv(exec, _mesa_GetMapdv);
   SET_GetMapfv(exec, _mesa_GetMapfv);
   SET_GetMapiv(exec, _mesa_GetMapiv);
   SET_GetMaterialfv(exec, _mesa_GetMaterialfv);
   SET_GetMaterialiv(exec, _mesa_GetMaterialiv);
   SET_GetPixelMapfv(exec, _mesa_GetPixelMapfv);
   SET_GetPixelMapuiv(exec, _mesa_GetPixelMapuiv);
   SET_GetPixelMapusv(exec, _mesa_GetPixelMapusv);
   SET_GetPolygonStipple(exec, _mesa_GetPolygonStipple);
   SET_GetTexEnvfv(exec, _mesa_GetTexEnvfv);
   SET_GetTexEnviv(exec, _mesa_GetTexEnviv);
   SET_GetTexLevelParameterfv(exec, _mesa_GetTexLevelParameterfv);
   SET_GetTexLevelParameteriv(exec, _mesa_GetTexLevelParameteriv);
   SET_GetTexParameterfv(exec, _mesa_GetTexParameterfv);
   SET_GetTexParameteriv(exec, _mesa_GetTexParameteriv);
   SET_GetTexGendv(exec, _mesa_GetTexGendv);
   SET_GetTexGenfv(exec, _mesa_GetTexGenfv);
   SET_GetTexGeniv(exec, _mesa_GetTexGeniv);
   SET_GetTexImage(exec, _mesa_GetTexImage);
   SET_Hint(exec, _mesa_Hint);
   SET_IndexMask(exec, _mesa_IndexMask);
   SET_IsEnabled(exec, _mesa_IsEnabled);
   SET_IsList(exec, _mesa_IsList);
   SET_LightModelf(exec, _mesa_LightModelf);
   SET_LightModelfv(exec, _mesa_LightModelfv);
   SET_LightModeli(exec, _mesa_LightModeli);
   SET_LightModeliv(exec, _mesa_LightModeliv);
   SET_Lightf(exec, _mesa_Lightf);
   SET_Lightfv(exec, _mesa_Lightfv);
   SET_Lighti(exec, _mesa_Lighti);
   SET_Lightiv(exec, _mesa_Lightiv);
   SET_ListBase(exec, _mesa_ListBase);
   SET_LoadMatrixd(exec, _mesa_LoadMatrixd);
   SET_Map1d(exec, _mesa_Map1d);
   SET_Map1f(exec, _mesa_Map1f);
   SET_Map2d(exec, _mesa_Map2d);
   SET_Map2f(exec, _mesa_Map2f);
   SET_MapGrid1d(exec, _mesa_MapGrid1d);
   SET_MapGrid1f(exec, _mesa_MapGrid1f);
   SET_MapGrid2d(exec, _mesa_MapGrid2d);
   SET_MapGrid2f(exec, _mesa_MapGrid2f);
   SET_MultMatrixd(exec, _mesa_MultMatrixd);
   SET_NewList(exec, _mesa_NewList);
   SET_PassThrough(exec, _mesa_PassThrough);
   SET_PixelMapfv(exec, _mesa_PixelMapfv);
   SET_PixelMapuiv(exec, _mesa_PixelMapuiv);
   SET_PixelMapusv(exec, _mesa_PixelMapusv);
   SET_PixelStoref(exec, _mesa_PixelStoref);
   SET_PixelTransferf(exec, _mesa_PixelTransferf);
   SET_PixelTransferi(exec, _mesa_PixelTransferi);
   SET_PixelZoom(exec, _mesa_PixelZoom);
   SET_PointSize(exec, _mesa_PointSize);
   SET_PolygonMode(exec, _mesa_PolygonMode);
   SET_PolygonOffset(exec, _mesa_PolygonOffset);
   SET_PolygonStipple(exec, _mesa_PolygonStipple);
   SET_PopAttrib(exec, _mesa_PopAttrib);
   SET_PushAttrib(exec, _mesa_PushAttrib);
   SET_RasterPos2d(exec, _mesa_RasterPos2d);
   SET_RasterPos2dv(exec, _mesa_RasterPos2dv);
   SET_RasterPos2s(exec, _mesa_RasterPos2s);
   SET_RasterPos2sv(exec, _mesa_RasterPos2sv);
   SET_RasterPos3d(exec, _mesa_RasterPos3d);
   SET_RasterPos3dv(exec, _mesa_RasterPos3dv);
   SET_RasterPos3f(exec, _mesa_RasterPos3f);
   SET_RasterPos3fv(exec, _mesa_RasterPos3fv);
   SET_RasterPos3i(exec, _mesa_RasterPos3i);
   SET_RasterPos3iv(exec, _mesa_RasterPos3iv);
   SET_RasterPos3s(exec, _mesa_RasterPos3s);
   SET_RasterPos3sv(exec, _mesa_RasterPos3sv);
   SET_RasterPos4d(exec, _mesa_RasterPos4d);
   SET_RasterPos4dv(exec, _mesa_RasterPos4dv);
   SET_RasterPos4f(exec, _mesa_RasterPos4f);
   SET_RasterPos4fv(exec, _mesa_RasterPos4fv);
   SET_RasterPos4i(exec, _mesa_RasterPos4i);
   SET_RasterPos4iv(exec, _mesa_RasterPos4iv);
   SET_RasterPos4s(exec, _mesa_RasterPos4s);
   SET_RasterPos4sv(exec, _mesa_RasterPos4sv);
   SET_ReadPixels(exec, _mesa_ReadPixels);
   SET_Rotated(exec, _mesa_Rotated);
   SET_Scaled(exec, _mesa_Scaled);
   SET_SecondaryColorPointerEXT(exec, _mesa_SecondaryColorPointerEXT);
   SET_TexEnvf(exec, _mesa_TexEnvf);
   SET_TexEnviv(exec, _mesa_TexEnviv);
   SET_TexGend(exec, _mesa_TexGend);
   SET_TexGendv(exec, _mesa_TexGendv);
   SET_TexGenf(exec, _mesa_TexGenf);
   SET_TexGenfv(exec, _mesa_TexGenfv);
   SET_TexGeni(exec, _mesa_TexGeni);
   SET_TexGeniv(exec, _mesa_TexGeniv);
   SET_TexImage1D(exec, _mesa_TexImage1D);
   SET_TexParameterf(exec, _mesa_TexParameterf);
   SET_TexParameterfv(exec, _mesa_TexParameterfv);
   SET_TexParameteriv(exec, _mesa_TexParameteriv);
   SET_Translated(exec, _mesa_Translated);
#endif

   /* 1.1 */
   SET_BindTexture(exec, _mesa_BindTexture);
   SET_DeleteTextures(exec, _mesa_DeleteTextures);
   SET_GenTextures(exec, _mesa_GenTextures);
#if _HAVE_FULL_GL
   SET_AreTexturesResident(exec, _mesa_AreTexturesResident);
   SET_ColorPointer(exec, _mesa_ColorPointer);
   SET_CopyTexImage1D(exec, _mesa_CopyTexImage1D);
   SET_CopyTexImage2D(exec, _mesa_CopyTexImage2D);
   SET_CopyTexSubImage1D(exec, _mesa_CopyTexSubImage1D);
   SET_CopyTexSubImage2D(exec, _mesa_CopyTexSubImage2D);
   SET_DisableClientState(exec, _mesa_DisableClientState);
   SET_EdgeFlagPointer(exec, _mesa_EdgeFlagPointer);
   SET_EnableClientState(exec, _mesa_EnableClientState);
   SET_GetPointerv(exec, _mesa_GetPointerv);
   SET_IndexPointer(exec, _mesa_IndexPointer);
   SET_InterleavedArrays(exec, _mesa_InterleavedArrays);
   SET_IsTexture(exec, _mesa_IsTexture);
   SET_NormalPointer(exec, _mesa_NormalPointer);
   SET_PopClientAttrib(exec, _mesa_PopClientAttrib);
   SET_PrioritizeTextures(exec, _mesa_PrioritizeTextures);
   SET_PushClientAttrib(exec, _mesa_PushClientAttrib);
   SET_TexCoordPointer(exec, _mesa_TexCoordPointer);
   SET_TexSubImage1D(exec, _mesa_TexSubImage1D);
   SET_TexSubImage2D(exec, _mesa_TexSubImage2D);