1 /* $Id: vtxfmt.c,v 1.14 2002/10/29 20:28:56 brianp Exp $ */
4 * Mesa 3-D graphics library
7 * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
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:
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
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.
27 * Keith Whitwell <keith@tungstengraphics.com>
32 #include "api_loopback.h"
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.
50 #define PRE_LOOPBACK( FUNC ) \
52 GET_CURRENT_CONTEXT(ctx); \
53 struct gl_tnl_module *tnl = &(ctx->TnlModule); \
55 ASSERT( tnl->Current ); \
56 ASSERT( tnl->SwapCount < NUM_VERTEX_FORMAT_ENTRIES ); \
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); \
65 _mesa_debug(ctx, " swapping gl" #FUNC"...\n" ); \
67 /* Install the tnl function pointer. */ \
68 ctx->Exec->FUNC = tnl->Current->FUNC; \
71 #define TAG(x) neutral_##x
72 #include "vtxfmt_tmp.h"
76 static void install_vtxfmt( struct _glapi_table
*tab
, GLvertexformat
*vfmt
)
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
);
142 void _mesa_init_exec_vtxfmt( GLcontext
*ctx
)
144 install_vtxfmt( ctx
->Exec
, &neutral_vtxfmt
);
145 ctx
->TnlModule
.SwapCount
= 0;
149 void _mesa_install_exec_vtxfmt( GLcontext
*ctx
, GLvertexformat
*vfmt
)
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
);
157 void _mesa_install_save_vtxfmt( GLcontext
*ctx
, GLvertexformat
*vfmt
)
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
);
165 void _mesa_restore_exec_vtxfmt( GLcontext
*ctx
)
167 struct gl_tnl_module
*tnl
= &(ctx
->TnlModule
);
170 /* Restore the neutral tnl module wrapper.
172 for ( i
= 0 ; i
< tnl
->SwapCount
; i
++ ) {
173 *(void **)tnl
->Swapped
[i
][0] = tnl
->Swapped
[i
][1];