vtxfmt.c revision 0f1e19c03cdf5bd8a7c3db59cf395a0833ab0173
1/* 2 * Mesa 3-D graphics library 3 * Version: 6.1 4 * 5 * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included 15 * in all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: 25 * Keith Whitwell <keith@tungstengraphics.com> 26 * Gareth Hughes 27 */ 28 29#include "glheader.h" 30#include "api_loopback.h" 31#include "context.h" 32#include "imports.h" 33#include "mtypes.h" 34#include "state.h" 35#include "vtxfmt.h" 36 37 38/* The neutral vertex format. This wraps all tnl module functions, 39 * verifying that the currently-installed module is valid and then 40 * installing the function pointers in a lazy fashion. It records the 41 * function pointers that have been swapped out, which allows a fast 42 * restoration of the neutral module in almost all cases -- a typical 43 * app might only require 4-6 functions to be modified from the neutral 44 * baseline, and only restoring these is certainly preferable to doing 45 * the entire module's 60 or so function pointers. 46 */ 47 48#define PRE_LOOPBACK( FUNC ) \ 49{ \ 50 GET_CURRENT_CONTEXT(ctx); \ 51 struct gl_tnl_module *tnl = &(ctx->TnlModule); \ 52 \ 53 ASSERT( tnl->Current ); \ 54 ASSERT( tnl->SwapCount < NUM_VERTEX_FORMAT_ENTRIES ); \ 55 \ 56 /* Save the swapped function's dispatch entry so it can be */ \ 57 /* restored later. */ \ 58 tnl->Swapped[tnl->SwapCount][0] = (void *)&(ctx->Exec->FUNC); \ 59 tnl->Swapped[tnl->SwapCount][1] = (void *)TAG(FUNC); \ 60 tnl->SwapCount++; \ 61 \ 62 if ( 0 ) \ 63 _mesa_debug(ctx, " swapping gl" #FUNC"...\n" ); \ 64 \ 65 /* Install the tnl function pointer. */ \ 66 ctx->Exec->FUNC = tnl->Current->FUNC; \ 67} 68 69#define TAG(x) neutral_##x 70#include "vtxfmt_tmp.h" 71 72 73 74static void 75install_vtxfmt( struct _glapi_table *tab, const GLvertexformat *vfmt ) 76{ 77 tab->ArrayElement = vfmt->ArrayElement; 78 tab->Color3f = vfmt->Color3f; 79 tab->Color3fv = vfmt->Color3fv; 80 tab->Color4f = vfmt->Color4f; 81 tab->Color4fv = vfmt->Color4fv; 82 tab->EdgeFlag = vfmt->EdgeFlag; 83 tab->EdgeFlagv = vfmt->EdgeFlagv; 84 tab->EvalCoord1f = vfmt->EvalCoord1f; 85 tab->EvalCoord1fv = vfmt->EvalCoord1fv; 86 tab->EvalCoord2f = vfmt->EvalCoord2f; 87 tab->EvalCoord2fv = vfmt->EvalCoord2fv; 88 tab->EvalPoint1 = vfmt->EvalPoint1; 89 tab->EvalPoint2 = vfmt->EvalPoint2; 90 tab->FogCoordfEXT = vfmt->FogCoordfEXT; 91 tab->FogCoordfvEXT = vfmt->FogCoordfvEXT; 92 tab->Indexf = vfmt->Indexf; 93 tab->Indexfv = vfmt->Indexfv; 94 tab->Materialfv = vfmt->Materialfv; 95 tab->MultiTexCoord1fARB = vfmt->MultiTexCoord1fARB; 96 tab->MultiTexCoord1fvARB = vfmt->MultiTexCoord1fvARB; 97 tab->MultiTexCoord2fARB = vfmt->MultiTexCoord2fARB; 98 tab->MultiTexCoord2fvARB = vfmt->MultiTexCoord2fvARB; 99 tab->MultiTexCoord3fARB = vfmt->MultiTexCoord3fARB; 100 tab->MultiTexCoord3fvARB = vfmt->MultiTexCoord3fvARB; 101 tab->MultiTexCoord4fARB = vfmt->MultiTexCoord4fARB; 102 tab->MultiTexCoord4fvARB = vfmt->MultiTexCoord4fvARB; 103 tab->Normal3f = vfmt->Normal3f; 104 tab->Normal3fv = vfmt->Normal3fv; 105 tab->SecondaryColor3fEXT = vfmt->SecondaryColor3fEXT; 106 tab->SecondaryColor3fvEXT = vfmt->SecondaryColor3fvEXT; 107 tab->TexCoord1f = vfmt->TexCoord1f; 108 tab->TexCoord1fv = vfmt->TexCoord1fv; 109 tab->TexCoord2f = vfmt->TexCoord2f; 110 tab->TexCoord2fv = vfmt->TexCoord2fv; 111 tab->TexCoord3f = vfmt->TexCoord3f; 112 tab->TexCoord3fv = vfmt->TexCoord3fv; 113 tab->TexCoord4f = vfmt->TexCoord4f; 114 tab->TexCoord4fv = vfmt->TexCoord4fv; 115 tab->Vertex2f = vfmt->Vertex2f; 116 tab->Vertex2fv = vfmt->Vertex2fv; 117 tab->Vertex3f = vfmt->Vertex3f; 118 tab->Vertex3fv = vfmt->Vertex3fv; 119 tab->Vertex4f = vfmt->Vertex4f; 120 tab->Vertex4fv = vfmt->Vertex4fv; 121 tab->CallList = vfmt->CallList; 122 tab->CallLists = vfmt->CallLists; 123 tab->Begin = vfmt->Begin; 124 tab->End = vfmt->End; 125 tab->VertexAttrib1fNV = vfmt->VertexAttrib1fNV; 126 tab->VertexAttrib1fvNV = vfmt->VertexAttrib1fvNV; 127 tab->VertexAttrib2fNV = vfmt->VertexAttrib2fNV; 128 tab->VertexAttrib2fvNV = vfmt->VertexAttrib2fvNV; 129 tab->VertexAttrib3fNV = vfmt->VertexAttrib3fNV; 130 tab->VertexAttrib3fvNV = vfmt->VertexAttrib3fvNV; 131 tab->VertexAttrib4fNV = vfmt->VertexAttrib4fNV; 132 tab->VertexAttrib4fvNV = vfmt->VertexAttrib4fvNV; 133 tab->Rectf = vfmt->Rectf; 134 tab->DrawArrays = vfmt->DrawArrays; 135 tab->DrawElements = vfmt->DrawElements; 136 tab->DrawRangeElements = vfmt->DrawRangeElements; 137 tab->EvalMesh1 = vfmt->EvalMesh1; 138 tab->EvalMesh2 = vfmt->EvalMesh2; 139 ASSERT(tab->EvalMesh2); 140} 141 142 143void _mesa_init_exec_vtxfmt( GLcontext *ctx ) 144{ 145 install_vtxfmt( ctx->Exec, &neutral_vtxfmt ); 146 ctx->TnlModule.SwapCount = 0; 147} 148 149 150void _mesa_install_exec_vtxfmt( GLcontext *ctx, const GLvertexformat *vfmt ) 151{ 152 ctx->TnlModule.Current = vfmt; 153 _mesa_restore_exec_vtxfmt( ctx ); 154} 155 156 157void _mesa_install_save_vtxfmt( GLcontext *ctx, const GLvertexformat *vfmt ) 158{ 159 install_vtxfmt( ctx->Save, vfmt ); 160} 161 162 163void _mesa_restore_exec_vtxfmt( GLcontext *ctx ) 164{ 165 struct gl_tnl_module *tnl = &(ctx->TnlModule); 166 GLuint i; 167 168 /* Restore the neutral tnl module wrapper. 169 */ 170 for ( i = 0 ; i < tnl->SwapCount ; i++ ) { 171 *(void **)tnl->Swapped[i][0] = tnl->Swapped[i][1]; 172 } 173 174 tnl->SwapCount = 0; 175} 176