2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2006 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>
29 #include "api_arrayelt.h"
40 #include "t_array_api.h"
41 #include "t_context.h"
42 #include "t_pipeline.h"
43 #include "t_save_api.h"
44 #include "t_vp_build.h"
45 #include "t_vtx_api.h"
50 install_driver_callbacks( GLcontext
*ctx
)
52 ctx
->Driver
.NewList
= _tnl_NewList
;
53 ctx
->Driver
.EndList
= _tnl_EndList
;
54 ctx
->Driver
.FlushVertices
= _tnl_FlushVertices
;
55 ctx
->Driver
.SaveFlushVertices
= _tnl_SaveFlushVertices
;
56 ctx
->Driver
.BeginCallList
= _tnl_BeginCallList
;
57 ctx
->Driver
.EndCallList
= _tnl_EndCallList
;
63 _tnl_CreateContext( GLcontext
*ctx
)
67 /* Create the TNLcontext structure
69 ctx
->swtnl_context
= tnl
= (TNLcontext
*) CALLOC( sizeof(TNLcontext
) );
75 if (_mesa_getenv("MESA_CODEGEN"))
76 tnl
->AllowCodegen
= GL_TRUE
;
80 tnl
->vb
.Size
= ctx
->Const
.MaxArrayLockSize
+ MAX_CLIPPED_VERTICES
;
83 /* Initialize tnl state and tnl->vtxfmt.
85 _tnl_save_init( ctx
);
86 _tnl_array_init( ctx
);
89 if (ctx
->_MaintainTnlProgram
) {
90 _tnl_ProgramCacheInit( ctx
);
91 _tnl_install_pipeline( ctx
, _tnl_vp_pipeline
);
93 _tnl_install_pipeline( ctx
, _tnl_default_pipeline
);
96 /* Initialize the arrayelt helper
98 if (!_ae_create_context( ctx
))
102 tnl
->NeedNdcCoords
= GL_TRUE
;
103 tnl
->LoopbackDListCassettes
= GL_FALSE
;
104 tnl
->CalcDListNormalLengths
= GL_TRUE
;
105 tnl
->AllowVertexFog
= GL_TRUE
;
106 tnl
->AllowPixelFog
= GL_TRUE
;
108 /* Hook our functions into exec and compile dispatch tables.
110 _mesa_install_exec_vtxfmt( ctx
, &tnl
->exec_vtxfmt
);
113 /* Set a few default values in the driver struct.
115 install_driver_callbacks(ctx
);
116 ctx
->Driver
.NeedFlush
= 0;
117 ctx
->Driver
.CurrentExecPrimitive
= PRIM_OUTSIDE_BEGIN_END
;
118 ctx
->Driver
.CurrentSavePrimitive
= PRIM_UNKNOWN
;
120 tnl
->Driver
.Render
.PrimTabElts
= _tnl_render_tab_elts
;
121 tnl
->Driver
.Render
.PrimTabVerts
= _tnl_render_tab_verts
;
122 tnl
->Driver
.NotifyMaterialChange
= _mesa_validate_all_lighting_tables
;
129 _tnl_DestroyContext( GLcontext
*ctx
)
131 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
133 _tnl_array_destroy( ctx
);
134 _tnl_vtx_destroy( ctx
);
135 _tnl_save_destroy( ctx
);
136 _tnl_destroy_pipeline( ctx
);
137 _ae_destroy_context( ctx
);
139 if (ctx
->_MaintainTnlProgram
)
140 _tnl_ProgramCacheDestroy( ctx
);
143 ctx
->swtnl_context
= NULL
;
148 _tnl_InvalidateState( GLcontext
*ctx
, GLuint new_state
)
150 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
152 if (new_state
& (_NEW_HINT
)) {
153 ASSERT(tnl
->AllowVertexFog
|| tnl
->AllowPixelFog
);
154 tnl
->_DoVertexFog
= (tnl
->AllowVertexFog
&& (ctx
->Hint
.Fog
!= GL_NICEST
))
155 || !tnl
->AllowPixelFog
;
158 _ae_invalidate_state(ctx
, new_state
);
160 tnl
->pipeline
.new_state
|= new_state
;
161 tnl
->vtx
.eval
.new_state
|= new_state
;
163 /* Calculate tnl->render_inputs:
165 if (ctx
->Visual
.rgbMode
) {
168 RENDERINPUTS_ZERO( tnl
->render_inputs_bitset
);
169 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_POS
);
170 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_COLOR0
);
171 for (i
= 0; i
< ctx
->Const
.MaxTextureCoordUnits
; i
++) {
172 if (ctx
->Texture
._EnabledCoordUnits
& (1 << i
)) {
173 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_TEX(i
) );
177 if (NEED_SECONDARY_COLOR(ctx
))
178 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_COLOR1
);
181 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_POS
);
182 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_COLOR_INDEX
);
185 if (ctx
->Fog
.Enabled
||
186 (ctx
->FragmentProgram
._Active
&&
187 (ctx
->FragmentProgram
._Current
->FogOption
!= GL_NONE
||
188 ctx
->FragmentProgram
._Current
->Base
.InputsRead
& FRAG_BIT_FOGC
)))
189 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_FOG
);
191 if (ctx
->Polygon
.FrontMode
!= GL_FILL
||
192 ctx
->Polygon
.BackMode
!= GL_FILL
)
193 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_EDGEFLAG
);
195 if (ctx
->RenderMode
== GL_FEEDBACK
)
196 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_TEX0
);
198 if (ctx
->Point
._Attenuated
||
199 (ctx
->VertexProgram
._Enabled
&& ctx
->VertexProgram
.PointSizeEnabled
))
200 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_POINTSIZE
);
202 if (ctx
->ShaderObjects
._VertexShaderPresent
|| ctx
->ShaderObjects
._FragmentShaderPresent
)
203 RENDERINPUTS_SET_RANGE( tnl
->render_inputs_bitset
, _TNL_FIRST_GENERIC
, _TNL_LAST_GENERIC
);
208 _tnl_wakeup_exec( GLcontext
*ctx
)
210 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
212 install_driver_callbacks(ctx
);
213 ctx
->Driver
.NeedFlush
|= FLUSH_UPDATE_CURRENT
;
215 /* Hook our functions into exec and compile dispatch tables.
217 _mesa_install_exec_vtxfmt( ctx
, &tnl
->exec_vtxfmt
);
219 /* Assume we haven't been getting state updates either:
221 _tnl_InvalidateState( ctx
, ~0 );
223 if (ctx
->Light
.ColorMaterialEnabled
) {
224 _mesa_update_color_material( ctx
,
225 ctx
->Current
.Attrib
[VERT_ATTRIB_COLOR0
] );
231 _tnl_wakeup_save_exec( GLcontext
*ctx
)
233 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
235 _tnl_wakeup_exec( ctx
);
236 _mesa_install_save_vtxfmt( ctx
, &tnl
->save_vtxfmt
);
241 * Drivers call this function to tell the TCL module whether or not
242 * it wants Normalized Device Coords (NDC) computed. I.e. whether
243 * we should "Divide-by-W". Software renders will want that.
246 _tnl_need_projected_coords( GLcontext
*ctx
, GLboolean mode
)
248 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
249 if (tnl
->NeedNdcCoords
!= mode
) {
250 tnl
->NeedNdcCoords
= mode
;
251 _tnl_InvalidateState( ctx
, _NEW_PROJECTION
);
256 _tnl_need_dlist_loopback( GLcontext
*ctx
, GLboolean mode
)
258 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
259 tnl
->LoopbackDListCassettes
= mode
;
263 _tnl_need_dlist_norm_lengths( GLcontext
*ctx
, GLboolean mode
)
265 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
266 tnl
->CalcDListNormalLengths
= mode
;
270 _tnl_isolate_materials( GLcontext
*ctx
, GLboolean mode
)
272 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
273 tnl
->IsolateMaterials
= mode
;
277 _tnl_allow_vertex_fog( GLcontext
*ctx
, GLboolean value
)
279 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
280 tnl
->AllowVertexFog
= value
;
281 tnl
->_DoVertexFog
= (tnl
->AllowVertexFog
&& (ctx
->Hint
.Fog
!= GL_NICEST
))
282 || !tnl
->AllowPixelFog
;
287 _tnl_allow_pixel_fog( GLcontext
*ctx
, GLboolean value
)
289 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
290 tnl
->AllowPixelFog
= value
;
291 tnl
->_DoVertexFog
= (tnl
->AllowVertexFog
&& (ctx
->Hint
.Fog
!= GL_NICEST
))
292 || !tnl
->AllowPixelFog
;