vtxfmt.c revision 3b7ac45162412a79c3cd4d4dbc16bd54db597608 
1/*
2 * Mesa 3-D graphics library
3 * Version:  6.3
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_arrayelt.h"
31#include "context.h"
32#include "imports.h"
33#include "mtypes.h"
34#include "vtxfmt.h"
35#include "eval.h"
36#include "dlist.h"
37
38
39#if FEATURE_beginend
40
41
42/* The neutral vertex format.  This wraps all tnl module functions,
43 * verifying that the currently-installed module is valid and then
44 * installing the function pointers in a lazy fashion.  It records the
45 * function pointers that have been swapped out, which allows a fast
46 * restoration of the neutral module in almost all cases -- a typical
47 * app might only require 4-6 functions to be modified from the neutral
48 * baseline, and only restoring these is certainly preferable to doing
49 * the entire module's 60 or so function pointers.
50 */
51
52#define PRE_LOOPBACK( FUNC )						\
53{									\
54   GET_CURRENT_CONTEXT(ctx);						\
55   struct gl_tnl_module * const tnl = &(ctx->TnlModule);		\
56   const int tmp_offset = _gloffset_ ## FUNC ;				\
57									\
58   ASSERT( tnl->Current );						\
59   ASSERT( tnl->SwapCount < NUM_VERTEX_FORMAT_ENTRIES );		\
60   ASSERT( tmp_offset >= 0 );						\
61                                                                        \
62   if (tnl->SwapCount == 0)                                             \
63      ctx->Driver.BeginVertices( ctx );                                 \
64                                                                        \
65   /* Save the swapped function's dispatch entry so it can be */        \
66   /* restored later. */                                                \
67   tnl->Swapped[tnl->SwapCount].location = & (((_glapi_proc *)ctx->Exec)[tmp_offset]); \
68   tnl->Swapped[tnl->SwapCount].function = (_glapi_proc)TAG(FUNC);	\
69   tnl->SwapCount++;							\
70									\
71   if ( 0 )								\
72      _mesa_debug(ctx, "   swapping gl" #FUNC"...\n" );			\
73									\
74   /* Install the tnl function pointer.	*/				\
75   SET_ ## FUNC(ctx->Exec, tnl->Current->FUNC);				\
76}
77
78#define TAG(x) neutral_##x
79#include "vtxfmt_tmp.h"
80
81
82/**
83 * Use the per-vertex functions found in <vfmt> to initialze the given
84 * API dispatch table.
85 */
86static void
87install_vtxfmt( struct _glapi_table *tab, const GLvertexformat *vfmt )
88{
89   _mesa_install_arrayelt_vtxfmt(tab, vfmt);
90
91   SET_Color3f(tab, vfmt->Color3f);
92   SET_Color3fv(tab, vfmt->Color3fv);
93   SET_Color4f(tab, vfmt->Color4f);
94   SET_Color4fv(tab, vfmt->Color4fv);
95   SET_EdgeFlag(tab, vfmt->EdgeFlag);
96
97   _mesa_install_eval_vtxfmt(tab, vfmt);
98
99   SET_FogCoordfEXT(tab, vfmt->FogCoordfEXT);
100   SET_FogCoordfvEXT(tab, vfmt->FogCoordfvEXT);
101   SET_Indexf(tab, vfmt->Indexf);
102   SET_Indexfv(tab, vfmt->Indexfv);
103   SET_Materialfv(tab, vfmt->Materialfv);
104   SET_MultiTexCoord1fARB(tab, vfmt->MultiTexCoord1fARB);
105   SET_MultiTexCoord1fvARB(tab, vfmt->MultiTexCoord1fvARB);
106   SET_MultiTexCoord2fARB(tab, vfmt->MultiTexCoord2fARB);
107   SET_MultiTexCoord2fvARB(tab, vfmt->MultiTexCoord2fvARB);
108   SET_MultiTexCoord3fARB(tab, vfmt->MultiTexCoord3fARB);
109   SET_MultiTexCoord3fvARB(tab, vfmt->MultiTexCoord3fvARB);
110   SET_MultiTexCoord4fARB(tab, vfmt->MultiTexCoord4fARB);
111   SET_MultiTexCoord4fvARB(tab, vfmt->MultiTexCoord4fvARB);
112   SET_Normal3f(tab, vfmt->Normal3f);
113   SET_Normal3fv(tab, vfmt->Normal3fv);
114   SET_SecondaryColor3fEXT(tab, vfmt->SecondaryColor3fEXT);
115   SET_SecondaryColor3fvEXT(tab, vfmt->SecondaryColor3fvEXT);
116   SET_TexCoord1f(tab, vfmt->TexCoord1f);
117   SET_TexCoord1fv(tab, vfmt->TexCoord1fv);
118   SET_TexCoord2f(tab, vfmt->TexCoord2f);
119   SET_TexCoord2fv(tab, vfmt->TexCoord2fv);
120   SET_TexCoord3f(tab, vfmt->TexCoord3f);
121   SET_TexCoord3fv(tab, vfmt->TexCoord3fv);
122   SET_TexCoord4f(tab, vfmt->TexCoord4f);
123   SET_TexCoord4fv(tab, vfmt->TexCoord4fv);
124   SET_Vertex2f(tab, vfmt->Vertex2f);
125   SET_Vertex2fv(tab, vfmt->Vertex2fv);
126   SET_Vertex3f(tab, vfmt->Vertex3f);
127   SET_Vertex3fv(tab, vfmt->Vertex3fv);
128   SET_Vertex4f(tab, vfmt->Vertex4f);
129   SET_Vertex4fv(tab, vfmt->Vertex4fv);
130
131   _mesa_install_dlist_vtxfmt(tab, vfmt);
132
133   SET_Begin(tab, vfmt->Begin);
134   SET_End(tab, vfmt->End);
135   SET_Rectf(tab, vfmt->Rectf);
136   SET_DrawArrays(tab, vfmt->DrawArrays);
137   SET_DrawElements(tab, vfmt->DrawElements);
138   SET_DrawRangeElements(tab, vfmt->DrawRangeElements);
139   SET_MultiDrawElementsEXT(tab, vfmt->MultiDrawElementsEXT);
140   SET_DrawElementsBaseVertex(tab, vfmt->DrawElementsBaseVertex);
141   SET_DrawRangeElementsBaseVertex(tab, vfmt->DrawRangeElementsBaseVertex);
142   SET_MultiDrawElementsBaseVertex(tab, vfmt->MultiDrawElementsBaseVertex);
143   SET_DrawArraysInstanced(tab, vfmt->DrawArraysInstanced);
144   SET_DrawElementsInstanced(tab, vfmt->DrawElementsInstanced);
145
146   /* GL_NV_vertex_program */
147   SET_VertexAttrib1fNV(tab, vfmt->VertexAttrib1fNV);
148   SET_VertexAttrib1fvNV(tab, vfmt->VertexAttrib1fvNV);
149   SET_VertexAttrib2fNV(tab, vfmt->VertexAttrib2fNV);
150   SET_VertexAttrib2fvNV(tab, vfmt->VertexAttrib2fvNV);
151   SET_VertexAttrib3fNV(tab, vfmt->VertexAttrib3fNV);
152   SET_VertexAttrib3fvNV(tab, vfmt->VertexAttrib3fvNV);
153   SET_VertexAttrib4fNV(tab, vfmt->VertexAttrib4fNV);
154   SET_VertexAttrib4fvNV(tab, vfmt->VertexAttrib4fvNV);
155#if FEATURE_ARB_vertex_program
156   SET_VertexAttrib1fARB(tab, vfmt->VertexAttrib1fARB);
157   SET_VertexAttrib1fvARB(tab, vfmt->VertexAttrib1fvARB);
158   SET_VertexAttrib2fARB(tab, vfmt->VertexAttrib2fARB);
159   SET_VertexAttrib2fvARB(tab, vfmt->VertexAttrib2fvARB);
160   SET_VertexAttrib3fARB(tab, vfmt->VertexAttrib3fARB);
161   SET_VertexAttrib3fvARB(tab, vfmt->VertexAttrib3fvARB);
162   SET_VertexAttrib4fARB(tab, vfmt->VertexAttrib4fARB);
163   SET_VertexAttrib4fvARB(tab, vfmt->VertexAttrib4fvARB);
164#endif
165}
166
167
168void _mesa_init_exec_vtxfmt( GLcontext *ctx )
169{
170   install_vtxfmt( ctx->Exec, &neutral_vtxfmt );
171   ctx->TnlModule.SwapCount = 0;
172}
173
174
175void _mesa_install_exec_vtxfmt( GLcontext *ctx, const GLvertexformat *vfmt )
176{
177   ctx->TnlModule.Current = vfmt;
178   _mesa_restore_exec_vtxfmt( ctx );
179}
180
181
182void _mesa_install_save_vtxfmt( GLcontext *ctx, const GLvertexformat *vfmt )
183{
184   install_vtxfmt( ctx->Save, vfmt );
185}
186
187
188void _mesa_restore_exec_vtxfmt( GLcontext *ctx )
189{
190   struct gl_tnl_module *tnl = &(ctx->TnlModule);
191   GLuint i;
192
193   /* Restore the neutral tnl module wrapper.
194    */
195   for ( i = 0 ; i < tnl->SwapCount ; i++ ) {
196      *(tnl->Swapped[i].location) = tnl->Swapped[i].function;
197   }
198
199   tnl->SwapCount = 0;
200}
201
202
203#endif /* FEATURE_beginend */
204