2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
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:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
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.
25 * Keith Whitwell <keith@tungstengraphics.com>
30 #include "api_loopback.h"
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.
48 #define PRE_LOOPBACK( FUNC ) \
50 GET_CURRENT_CONTEXT(ctx); \
51 struct gl_tnl_module *tnl = &(ctx->TnlModule); \
52 typedef void (*func_ptr_t)(void); \
54 ASSERT( tnl->Current ); \
55 ASSERT( tnl->SwapCount < NUM_VERTEX_FORMAT_ENTRIES ); \
57 /* Save the swapped function's dispatch entry so it can be */ \
58 /* restored later. */ \
59 tnl->Swapped[tnl->SwapCount][0] = (void *)&(GET_ ## FUNC (ctx->Exec)); \
60 *(func_ptr_t *)(tnl->Swapped[tnl->SwapCount]+1) = (func_ptr_t)TAG(FUNC); \
64 _mesa_debug(ctx, " swapping gl" #FUNC"...\n" ); \
66 /* Install the tnl function pointer. */ \
67 SET_ ## FUNC(ctx->Exec, tnl->Current->FUNC); \
70 #define TAG(x) neutral_##x
71 #include "vtxfmt_tmp.h"
76 install_vtxfmt( struct _glapi_table
*tab
, const GLvertexformat
*vfmt
)
78 SET_ArrayElement(tab
, vfmt
->ArrayElement
);
79 SET_Color3f(tab
, vfmt
->Color3f
);
80 SET_Color3fv(tab
, vfmt
->Color3fv
);
81 SET_Color4f(tab
, vfmt
->Color4f
);
82 SET_Color4fv(tab
, vfmt
->Color4fv
);
83 SET_EdgeFlag(tab
, vfmt
->EdgeFlag
);
84 SET_EdgeFlagv(tab
, vfmt
->EdgeFlagv
);
85 SET_EvalCoord1f(tab
, vfmt
->EvalCoord1f
);
86 SET_EvalCoord1fv(tab
, vfmt
->EvalCoord1fv
);
87 SET_EvalCoord2f(tab
, vfmt
->EvalCoord2f
);
88 SET_EvalCoord2fv(tab
, vfmt
->EvalCoord2fv
);
89 SET_EvalPoint1(tab
, vfmt
->EvalPoint1
);
90 SET_EvalPoint2(tab
, vfmt
->EvalPoint2
);
91 SET_FogCoordfEXT(tab
, vfmt
->FogCoordfEXT
);
92 SET_FogCoordfvEXT(tab
, vfmt
->FogCoordfvEXT
);
93 SET_Indexf(tab
, vfmt
->Indexf
);
94 SET_Indexfv(tab
, vfmt
->Indexfv
);
95 SET_Materialfv(tab
, vfmt
->Materialfv
);
96 SET_MultiTexCoord1fARB(tab
, vfmt
->MultiTexCoord1fARB
);
97 SET_MultiTexCoord1fvARB(tab
, vfmt
->MultiTexCoord1fvARB
);
98 SET_MultiTexCoord2fARB(tab
, vfmt
->MultiTexCoord2fARB
);
99 SET_MultiTexCoord2fvARB(tab
, vfmt
->MultiTexCoord2fvARB
);
100 SET_MultiTexCoord3fARB(tab
, vfmt
->MultiTexCoord3fARB
);
101 SET_MultiTexCoord3fvARB(tab
, vfmt
->MultiTexCoord3fvARB
);
102 SET_MultiTexCoord4fARB(tab
, vfmt
->MultiTexCoord4fARB
);
103 SET_MultiTexCoord4fvARB(tab
, vfmt
->MultiTexCoord4fvARB
);
104 SET_Normal3f(tab
, vfmt
->Normal3f
);
105 SET_Normal3fv(tab
, vfmt
->Normal3fv
);
106 SET_SecondaryColor3fEXT(tab
, vfmt
->SecondaryColor3fEXT
);
107 SET_SecondaryColor3fvEXT(tab
, vfmt
->SecondaryColor3fvEXT
);
108 SET_TexCoord1f(tab
, vfmt
->TexCoord1f
);
109 SET_TexCoord1fv(tab
, vfmt
->TexCoord1fv
);
110 SET_TexCoord2f(tab
, vfmt
->TexCoord2f
);
111 SET_TexCoord2fv(tab
, vfmt
->TexCoord2fv
);
112 SET_TexCoord3f(tab
, vfmt
->TexCoord3f
);
113 SET_TexCoord3fv(tab
, vfmt
->TexCoord3fv
);
114 SET_TexCoord4f(tab
, vfmt
->TexCoord4f
);
115 SET_TexCoord4fv(tab
, vfmt
->TexCoord4fv
);
116 SET_Vertex2f(tab
, vfmt
->Vertex2f
);
117 SET_Vertex2fv(tab
, vfmt
->Vertex2fv
);
118 SET_Vertex3f(tab
, vfmt
->Vertex3f
);
119 SET_Vertex3fv(tab
, vfmt
->Vertex3fv
);
120 SET_Vertex4f(tab
, vfmt
->Vertex4f
);
121 SET_Vertex4fv(tab
, vfmt
->Vertex4fv
);
122 SET_CallList(tab
, vfmt
->CallList
);
123 SET_CallLists(tab
, vfmt
->CallLists
);
124 SET_Begin(tab
, vfmt
->Begin
);
125 SET_End(tab
, vfmt
->End
);
126 SET_VertexAttrib1fNV(tab
, vfmt
->VertexAttrib1fNV
);
127 SET_VertexAttrib1fvNV(tab
, vfmt
->VertexAttrib1fvNV
);
128 SET_VertexAttrib2fNV(tab
, vfmt
->VertexAttrib2fNV
);
129 SET_VertexAttrib2fvNV(tab
, vfmt
->VertexAttrib2fvNV
);
130 SET_VertexAttrib3fNV(tab
, vfmt
->VertexAttrib3fNV
);
131 SET_VertexAttrib3fvNV(tab
, vfmt
->VertexAttrib3fvNV
);
132 SET_VertexAttrib4fNV(tab
, vfmt
->VertexAttrib4fNV
);
133 SET_VertexAttrib4fvNV(tab
, vfmt
->VertexAttrib4fvNV
);
134 SET_VertexAttrib1fARB(tab
, vfmt
->VertexAttrib1fARB
);
135 SET_VertexAttrib1fvARB(tab
, vfmt
->VertexAttrib1fvARB
);
136 SET_VertexAttrib2fARB(tab
, vfmt
->VertexAttrib2fARB
);
137 SET_VertexAttrib2fvARB(tab
, vfmt
->VertexAttrib2fvARB
);
138 SET_VertexAttrib3fARB(tab
, vfmt
->VertexAttrib3fARB
);
139 SET_VertexAttrib3fvARB(tab
, vfmt
->VertexAttrib3fvARB
);
140 SET_VertexAttrib4fARB(tab
, vfmt
->VertexAttrib4fARB
);
141 SET_VertexAttrib4fvARB(tab
, vfmt
->VertexAttrib4fvARB
);
142 SET_Rectf(tab
, vfmt
->Rectf
);
143 SET_DrawArrays(tab
, vfmt
->DrawArrays
);
144 SET_DrawElements(tab
, vfmt
->DrawElements
);
145 SET_DrawRangeElements(tab
, vfmt
->DrawRangeElements
);
146 SET_EvalMesh1(tab
, vfmt
->EvalMesh1
);
147 SET_EvalMesh2(tab
, vfmt
->EvalMesh2
);
148 ASSERT(tab
->EvalMesh2
);
152 void _mesa_init_exec_vtxfmt( GLcontext
*ctx
)
154 install_vtxfmt( ctx
->Exec
, &neutral_vtxfmt
);
155 ctx
->TnlModule
.SwapCount
= 0;
159 void _mesa_install_exec_vtxfmt( GLcontext
*ctx
, const GLvertexformat
*vfmt
)
161 ctx
->TnlModule
.Current
= vfmt
;
162 _mesa_restore_exec_vtxfmt( ctx
);
166 void _mesa_install_save_vtxfmt( GLcontext
*ctx
, const GLvertexformat
*vfmt
)
168 install_vtxfmt( ctx
->Save
, vfmt
);
172 void _mesa_restore_exec_vtxfmt( GLcontext
*ctx
)
174 struct gl_tnl_module
*tnl
= &(ctx
->TnlModule
);
177 /* Restore the neutral tnl module wrapper.
179 for ( i
= 0 ; i
< tnl
->SwapCount
; i
++ ) {
180 *(void **)tnl
->Swapped
[i
][0] = tnl
->Swapped
[i
][1];