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Diffstat (limited to 'src/mesa/main/vtxfmt.c')
| -rw-r--r-- | src/mesa/main/vtxfmt.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/src/mesa/main/vtxfmt.c b/src/mesa/main/vtxfmt.c new file mode 100644 index 0000000..97b75da --- /dev/null +++ b/src/mesa/main/vtxfmt.c @@ -0,0 +1,176 @@ +/* + * Mesa 3-D graphics library + * Version: 6.1 + * + * Copyright (C) 1999-2004 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. + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + * Gareth Hughes + */ + +#include "glheader.h" +#include "api_loopback.h" +#include "context.h" +#include "imports.h" +#include "mtypes.h" +#include "state.h" +#include "vtxfmt.h" + + +/* The neutral vertex format. This wraps all tnl module functions, + * verifying that the currently-installed module is valid and then + * installing the function pointers in a lazy fashion. It records the + * function pointers that have been swapped out, which allows a fast + * restoration of the neutral module in almost all cases -- a typical + * app might only require 4-6 functions to be modified from the neutral + * baseline, and only restoring these is certainly preferable to doing + * the entire module's 60 or so function pointers. + */ + +#define PRE_LOOPBACK( FUNC ) \ +{ \ + GET_CURRENT_CONTEXT(ctx); \ + struct gl_tnl_module *tnl = &(ctx->TnlModule); \ + typedef void (*func_ptr_t)(void); \ + \ + ASSERT( tnl->Current ); \ + ASSERT( tnl->SwapCount < NUM_VERTEX_FORMAT_ENTRIES ); \ + \ + /* Save the swapped function's dispatch entry so it can be */ \ + /* restored later. */ \ + tnl->Swapped[tnl->SwapCount][0] = (void *)&(ctx->Exec->FUNC); \ + *(func_ptr_t *)(tnl->Swapped[tnl->SwapCount]+1) = (func_ptr_t)TAG(FUNC); \ + tnl->SwapCount++; \ + \ + if ( 0 ) \ + _mesa_debug(ctx, " swapping gl" #FUNC"...\n" ); \ + \ + /* Install the tnl function pointer. */ \ + ctx->Exec->FUNC = tnl->Current->FUNC; \ +} + +#define TAG(x) neutral_##x +#include "vtxfmt_tmp.h" + + + +static void +install_vtxfmt( struct _glapi_table *tab, const GLvertexformat *vfmt ) +{ + tab->ArrayElement = vfmt->ArrayElement; + tab->Color3f = vfmt->Color3f; + tab->Color3fv = vfmt->Color3fv; + tab->Color4f = vfmt->Color4f; + tab->Color4fv = vfmt->Color4fv; + tab->EdgeFlag = vfmt->EdgeFlag; + tab->EdgeFlagv = vfmt->EdgeFlagv; + tab->EvalCoord1f = vfmt->EvalCoord1f; + tab->EvalCoord1fv = vfmt->EvalCoord1fv; + tab->EvalCoord2f = vfmt->EvalCoord2f; + tab->EvalCoord2fv = vfmt->EvalCoord2fv; + tab->EvalPoint1 = vfmt->EvalPoint1; + tab->EvalPoint2 = vfmt->EvalPoint2; + tab->FogCoordfEXT = vfmt->FogCoordfEXT; + tab->FogCoordfvEXT = vfmt->FogCoordfvEXT; + tab->Indexf = vfmt->Indexf; + tab->Indexfv = vfmt->Indexfv; + tab->Materialfv = vfmt->Materialfv; + tab->MultiTexCoord1fARB = vfmt->MultiTexCoord1fARB; + tab->MultiTexCoord1fvARB = vfmt->MultiTexCoord1fvARB; + tab->MultiTexCoord2fARB = vfmt->MultiTexCoord2fARB; + tab->MultiTexCoord2fvARB = vfmt->MultiTexCoord2fvARB; + tab->MultiTexCoord3fARB = vfmt->MultiTexCoord3fARB; + tab->MultiTexCoord3fvARB = vfmt->MultiTexCoord3fvARB; + tab->MultiTexCoord4fARB = vfmt->MultiTexCoord4fARB; + tab->MultiTexCoord4fvARB = vfmt->MultiTexCoord4fvARB; + tab->Normal3f = vfmt->Normal3f; + tab->Normal3fv = vfmt->Normal3fv; + tab->SecondaryColor3fEXT = vfmt->SecondaryColor3fEXT; + tab->SecondaryColor3fvEXT = vfmt->SecondaryColor3fvEXT; + tab->TexCoord1f = vfmt->TexCoord1f; + tab->TexCoord1fv = vfmt->TexCoord1fv; + tab->TexCoord2f = vfmt->TexCoord2f; + tab->TexCoord2fv = vfmt->TexCoord2fv; + tab->TexCoord3f = vfmt->TexCoord3f; + tab->TexCoord3fv = vfmt->TexCoord3fv; + tab->TexCoord4f = vfmt->TexCoord4f; + tab->TexCoord4fv = vfmt->TexCoord4fv; + tab->Vertex2f = vfmt->Vertex2f; + tab->Vertex2fv = vfmt->Vertex2fv; + tab->Vertex3f = vfmt->Vertex3f; + tab->Vertex3fv = vfmt->Vertex3fv; + tab->Vertex4f = vfmt->Vertex4f; + tab->Vertex4fv = vfmt->Vertex4fv; + tab->CallList = vfmt->CallList; + tab->CallLists = vfmt->CallLists; + tab->Begin = vfmt->Begin; + tab->End = vfmt->End; + tab->VertexAttrib1fNV = vfmt->VertexAttrib1fNV; + tab->VertexAttrib1fvNV = vfmt->VertexAttrib1fvNV; + tab->VertexAttrib2fNV = vfmt->VertexAttrib2fNV; + tab->VertexAttrib2fvNV = vfmt->VertexAttrib2fvNV; + tab->VertexAttrib3fNV = vfmt->VertexAttrib3fNV; + tab->VertexAttrib3fvNV = vfmt->VertexAttrib3fvNV; + tab->VertexAttrib4fNV = vfmt->VertexAttrib4fNV; + tab->VertexAttrib4fvNV = vfmt->VertexAttrib4fvNV; + tab->Rectf = vfmt->Rectf; + tab->DrawArrays = vfmt->DrawArrays; + tab->DrawElements = vfmt->DrawElements; + tab->DrawRangeElements = vfmt->DrawRangeElements; + tab->EvalMesh1 = vfmt->EvalMesh1; + tab->EvalMesh2 = vfmt->EvalMesh2; + ASSERT(tab->EvalMesh2); +} + + +void _mesa_init_exec_vtxfmt( GLcontext *ctx ) +{ + install_vtxfmt( ctx->Exec, &neutral_vtxfmt ); + ctx->TnlModule.SwapCount = 0; +} + + +void _mesa_install_exec_vtxfmt( GLcontext *ctx, const GLvertexformat *vfmt ) +{ + ctx->TnlModule.Current = vfmt; + _mesa_restore_exec_vtxfmt( ctx ); +} + + +void _mesa_install_save_vtxfmt( GLcontext *ctx, const GLvertexformat *vfmt ) +{ + install_vtxfmt( ctx->Save, vfmt ); +} + + +void _mesa_restore_exec_vtxfmt( GLcontext *ctx ) +{ + struct gl_tnl_module *tnl = &(ctx->TnlModule); + GLuint i; + + /* Restore the neutral tnl module wrapper. + */ + for ( i = 0 ; i < tnl->SwapCount ; i++ ) { + *(void **)tnl->Swapped[i][0] = tnl->Swapped[i][1]; + } + + tnl->SwapCount = 0; +} |