vtxfmt.c revision 3c63452e64df7e10aa073c6c3b9492b1d7dabbb8
1/* $Id: vtxfmt.c,v 1.13 2002/10/24 23:57:21 brianp Exp $ */ 2 3/* 4 * Mesa 3-D graphics library 5 * Version: 4.1 6 * 7 * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. 8 * 9 * Permission is hereby granted, free of charge, to any person obtaining a 10 * copy of this software and associated documentation files (the "Software"), 11 * to deal in the Software without restriction, including without limitation 12 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 13 * and/or sell copies of the Software, and to permit persons to whom the 14 * Software is furnished to do so, subject to the following conditions: 15 * 16 * The above copyright notice and this permission notice shall be included 17 * in all copies or substantial portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 22 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 23 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 * Authors: 27 * Keith Whitwell <keithw@valinux.com> 28 * Gareth Hughes <gareth@valinux.com> 29 */ 30 31#include "glheader.h" 32#include "api_loopback.h" 33#include "context.h" 34#include "imports.h" 35#include "mtypes.h" 36#include "state.h" 37#include "vtxfmt.h" 38 39 40/* The neutral vertex format. This wraps all tnl module functions, 41 * verifying that the currently-installed module is valid and then 42 * installing the function pointers in a lazy fashion. It records the 43 * function pointers that have been swapped out, which allows a fast 44 * restoration of the neutral module in almost all cases -- a typical 45 * app might only require 4-6 functions to be modified from the neutral 46 * baseline, and only restoring these is certainly preferable to doing 47 * the entire module's 60 or so function pointers. 48 */ 49 50#define PRE_LOOPBACK( FUNC ) \ 51{ \ 52 GET_CURRENT_CONTEXT(ctx); \ 53 struct gl_tnl_module *tnl = &(ctx->TnlModule); \ 54 \ 55 ASSERT( tnl->Current ); \ 56 ASSERT( tnl->SwapCount < NUM_VERTEX_FORMAT_ENTRIES ); \ 57 \ 58 /* Save the swapped function's dispatch entry so it can be */ \ 59 /* restored later. */ \ 60 tnl->Swapped[tnl->SwapCount][0] = (void *)&(ctx->Exec->FUNC); \ 61 tnl->Swapped[tnl->SwapCount][1] = (void *)TAG(FUNC); \ 62 tnl->SwapCount++; \ 63 \ 64 if ( 0 ) \ 65 _mesa_debug(ctx, " swapping gl" #FUNC"...\n" ); \ 66 \ 67 /* Install the tnl function pointer. */ \ 68 ctx->Exec->FUNC = tnl->Current->FUNC; \ 69} 70 71#define TAG(x) neutral_##x 72#include "vtxfmt_tmp.h" 73 74 75 76static void install_vtxfmt( struct _glapi_table *tab, GLvertexformat *vfmt ) 77{ 78 tab->ArrayElement = vfmt->ArrayElement; 79 tab->Color3f = vfmt->Color3f; 80 tab->Color3fv = vfmt->Color3fv; 81 tab->Color3ub = vfmt->Color3ub; 82 tab->Color3ubv = vfmt->Color3ubv; 83 tab->Color4f = vfmt->Color4f; 84 tab->Color4fv = vfmt->Color4fv; 85 tab->Color4ub = vfmt->Color4ub; 86 tab->Color4ubv = vfmt->Color4ubv; 87 tab->EdgeFlag = vfmt->EdgeFlag; 88 tab->EdgeFlagv = vfmt->EdgeFlagv; 89 tab->EvalCoord1f = vfmt->EvalCoord1f; 90 tab->EvalCoord1fv = vfmt->EvalCoord1fv; 91 tab->EvalCoord2f = vfmt->EvalCoord2f; 92 tab->EvalCoord2fv = vfmt->EvalCoord2fv; 93 tab->EvalPoint1 = vfmt->EvalPoint1; 94 tab->EvalPoint2 = vfmt->EvalPoint2; 95 tab->FogCoordfEXT = vfmt->FogCoordfEXT; 96 tab->FogCoordfvEXT = vfmt->FogCoordfvEXT; 97 tab->Indexi = vfmt->Indexi; 98 tab->Indexiv = vfmt->Indexiv; 99 tab->Materialfv = vfmt->Materialfv; 100 tab->MultiTexCoord1fARB = vfmt->MultiTexCoord1fARB; 101 tab->MultiTexCoord1fvARB = vfmt->MultiTexCoord1fvARB; 102 tab->MultiTexCoord2fARB = vfmt->MultiTexCoord2fARB; 103 tab->MultiTexCoord2fvARB = vfmt->MultiTexCoord2fvARB; 104 tab->MultiTexCoord3fARB = vfmt->MultiTexCoord3fARB; 105 tab->MultiTexCoord3fvARB = vfmt->MultiTexCoord3fvARB; 106 tab->MultiTexCoord4fARB = vfmt->MultiTexCoord4fARB; 107 tab->MultiTexCoord4fvARB = vfmt->MultiTexCoord4fvARB; 108 tab->Normal3f = vfmt->Normal3f; 109 tab->Normal3fv = vfmt->Normal3fv; 110 tab->SecondaryColor3fEXT = vfmt->SecondaryColor3fEXT; 111 tab->SecondaryColor3fvEXT = vfmt->SecondaryColor3fvEXT; 112 tab->SecondaryColor3ubEXT = vfmt->SecondaryColor3ubEXT; 113 tab->SecondaryColor3ubvEXT = vfmt->SecondaryColor3ubvEXT; 114 tab->TexCoord1f = vfmt->TexCoord1f; 115 tab->TexCoord1fv = vfmt->TexCoord1fv; 116 tab->TexCoord2f = vfmt->TexCoord2f; 117 tab->TexCoord2fv = vfmt->TexCoord2fv; 118 tab->TexCoord3f = vfmt->TexCoord3f; 119 tab->TexCoord3fv = vfmt->TexCoord3fv; 120 tab->TexCoord4f = vfmt->TexCoord4f; 121 tab->TexCoord4fv = vfmt->TexCoord4fv; 122 tab->Vertex2f = vfmt->Vertex2f; 123 tab->Vertex2fv = vfmt->Vertex2fv; 124 tab->Vertex3f = vfmt->Vertex3f; 125 tab->Vertex3fv = vfmt->Vertex3fv; 126 tab->Vertex4f = vfmt->Vertex4f; 127 tab->Vertex4fv = vfmt->Vertex4fv; 128 tab->CallList = vfmt->CallList; 129 tab->Begin = vfmt->Begin; 130 tab->End = vfmt->End; 131 tab->VertexAttrib4fNV = vfmt->VertexAttrib4fNV; 132 tab->Rectf = vfmt->Rectf; 133 tab->DrawArrays = vfmt->DrawArrays; 134 tab->DrawElements = vfmt->DrawElements; 135 tab->DrawRangeElements = vfmt->DrawRangeElements; 136 tab->EvalMesh1 = vfmt->EvalMesh1; 137 tab->EvalMesh2 = vfmt->EvalMesh2; 138 assert(tab->EvalMesh2); 139} 140 141 142void _mesa_init_exec_vtxfmt( GLcontext *ctx ) 143{ 144 install_vtxfmt( ctx->Exec, &neutral_vtxfmt ); 145 ctx->TnlModule.SwapCount = 0; 146} 147 148 149void _mesa_install_exec_vtxfmt( GLcontext *ctx, GLvertexformat *vfmt ) 150{ 151 ctx->TnlModule.Current = vfmt; 152 _mesa_restore_exec_vtxfmt( ctx ); 153 if ( ctx->ExecPrefersFloat != vfmt->prefer_float_colors ) 154 _mesa_loopback_prefer_float( ctx->Exec, vfmt->prefer_float_colors ); 155} 156 157void _mesa_install_save_vtxfmt( GLcontext *ctx, GLvertexformat *vfmt ) 158{ 159 install_vtxfmt( ctx->Save, vfmt ); 160 if ( ctx->SavePrefersFloat != vfmt->prefer_float_colors ) 161 _mesa_loopback_prefer_float( ctx->Save, vfmt->prefer_float_colors ); 162} 163 164 165void _mesa_restore_exec_vtxfmt( GLcontext *ctx ) 166{ 167 struct gl_tnl_module *tnl = &(ctx->TnlModule); 168 GLuint i; 169 170 /* Restore the neutral tnl module wrapper. 171 */ 172 for ( i = 0 ; i < tnl->SwapCount ; i++ ) { 173 *(void **)tnl->Swapped[i][0] = tnl->Swapped[i][1]; 174 } 175 176 tnl->SwapCount = 0; 177} 178