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
->vp_cache
= (struct tnl_cache
*) MALLOC(sizeof(*tnl
->vp_cache
));
91 tnl
->vp_cache
->size
= 5;
92 tnl
->vp_cache
->n_items
= 0;
93 tnl
->vp_cache
->items
= (struct tnl_cache_item
**)
94 _mesa_malloc(tnl
->vp_cache
->size
* sizeof(*tnl
->vp_cache
->items
));
95 _mesa_memset(tnl
->vp_cache
->items
, 0, tnl
->vp_cache
->size
*
96 sizeof(*tnl
->vp_cache
->items
));
98 _tnl_install_pipeline( ctx
, _tnl_vp_pipeline
);
100 _tnl_install_pipeline( ctx
, _tnl_default_pipeline
);
103 /* Initialize the arrayelt helper
105 if (!_ae_create_context( ctx
))
109 tnl
->NeedNdcCoords
= GL_TRUE
;
110 tnl
->LoopbackDListCassettes
= GL_FALSE
;
111 tnl
->CalcDListNormalLengths
= GL_TRUE
;
112 tnl
->AllowVertexFog
= GL_TRUE
;
113 tnl
->AllowPixelFog
= GL_TRUE
;
115 /* Hook our functions into exec and compile dispatch tables.
117 _mesa_install_exec_vtxfmt( ctx
, &tnl
->exec_vtxfmt
);
120 /* Set a few default values in the driver struct.
122 install_driver_callbacks(ctx
);
123 ctx
->Driver
.NeedFlush
= 0;
124 ctx
->Driver
.CurrentExecPrimitive
= PRIM_OUTSIDE_BEGIN_END
;
125 ctx
->Driver
.CurrentSavePrimitive
= PRIM_UNKNOWN
;
127 tnl
->Driver
.Render
.PrimTabElts
= _tnl_render_tab_elts
;
128 tnl
->Driver
.Render
.PrimTabVerts
= _tnl_render_tab_verts
;
129 tnl
->Driver
.NotifyMaterialChange
= _mesa_validate_all_lighting_tables
;
136 _tnl_DestroyContext( GLcontext
*ctx
)
138 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
140 _tnl_array_destroy( ctx
);
141 _tnl_vtx_destroy( ctx
);
142 _tnl_save_destroy( ctx
);
143 _tnl_destroy_pipeline( ctx
);
144 _ae_destroy_context( ctx
);
146 if (ctx
->_MaintainTnlProgram
)
147 _tnl_ProgramCacheDestroy( ctx
);
150 ctx
->swtnl_context
= NULL
;
155 _tnl_InvalidateState( GLcontext
*ctx
, GLuint new_state
)
157 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
159 if (new_state
& (_NEW_HINT
)) {
160 ASSERT(tnl
->AllowVertexFog
|| tnl
->AllowPixelFog
);
161 tnl
->_DoVertexFog
= (tnl
->AllowVertexFog
&& (ctx
->Hint
.Fog
!= GL_NICEST
))
162 || !tnl
->AllowPixelFog
;
165 _ae_invalidate_state(ctx
, new_state
);
167 tnl
->pipeline
.new_state
|= new_state
;
168 tnl
->vtx
.eval
.new_state
|= new_state
;
170 /* Calculate tnl->render_inputs:
172 if (ctx
->Visual
.rgbMode
) {
175 RENDERINPUTS_ZERO( tnl
->render_inputs_bitset
);
176 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_POS
);
177 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_COLOR0
);
178 for (i
= 0; i
< ctx
->Const
.MaxTextureCoordUnits
; i
++) {
179 if (ctx
->Texture
._EnabledCoordUnits
& (1 << i
)) {
180 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_TEX(i
) );
184 if (NEED_SECONDARY_COLOR(ctx
))
185 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_COLOR1
);
188 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_POS
);
189 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_INDEX
);
192 if (ctx
->Fog
.Enabled
||
193 (ctx
->FragmentProgram
._Active
&&
194 ctx
->FragmentProgram
._Current
->FogOption
!= GL_NONE
))
195 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_FOG
);
197 if (ctx
->Polygon
.FrontMode
!= GL_FILL
||
198 ctx
->Polygon
.BackMode
!= GL_FILL
)
199 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_EDGEFLAG
);
201 if (ctx
->RenderMode
== GL_FEEDBACK
)
202 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_TEX0
);
204 if (ctx
->Point
._Attenuated
||
205 (ctx
->VertexProgram
._Enabled
&& ctx
->VertexProgram
.PointSizeEnabled
))
206 RENDERINPUTS_SET( tnl
->render_inputs_bitset
, _TNL_ATTRIB_POINTSIZE
);
208 if (ctx
->ShaderObjects
._VertexShaderPresent
|| ctx
->ShaderObjects
._FragmentShaderPresent
)
209 RENDERINPUTS_SET_RANGE( tnl
->render_inputs_bitset
, _TNL_FIRST_ATTRIBUTE
, _TNL_LAST_ATTRIBUTE
);
214 _tnl_wakeup_exec( GLcontext
*ctx
)
216 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
218 install_driver_callbacks(ctx
);
219 ctx
->Driver
.NeedFlush
|= FLUSH_UPDATE_CURRENT
;
221 /* Hook our functions into exec and compile dispatch tables.
223 _mesa_install_exec_vtxfmt( ctx
, &tnl
->exec_vtxfmt
);
225 /* Assume we haven't been getting state updates either:
227 _tnl_InvalidateState( ctx
, ~0 );
229 if (ctx
->Light
.ColorMaterialEnabled
) {
230 _mesa_update_color_material( ctx
,
231 ctx
->Current
.Attrib
[VERT_ATTRIB_COLOR0
] );
237 _tnl_wakeup_save_exec( GLcontext
*ctx
)
239 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
241 _tnl_wakeup_exec( ctx
);
242 _mesa_install_save_vtxfmt( ctx
, &tnl
->save_vtxfmt
);
247 * Drivers call this function to tell the TCL module whether or not
248 * it wants Normalized Device Coords (NDC) computed. I.e. whether
249 * we should "Divide-by-W". Software renders will want that.
252 _tnl_need_projected_coords( GLcontext
*ctx
, GLboolean mode
)
254 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
255 if (tnl
->NeedNdcCoords
!= mode
) {
256 tnl
->NeedNdcCoords
= mode
;
257 _tnl_InvalidateState( ctx
, _NEW_PROJECTION
);
262 _tnl_need_dlist_loopback( GLcontext
*ctx
, GLboolean mode
)
264 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
265 tnl
->LoopbackDListCassettes
= mode
;
269 _tnl_need_dlist_norm_lengths( GLcontext
*ctx
, GLboolean mode
)
271 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
272 tnl
->CalcDListNormalLengths
= mode
;
276 _tnl_isolate_materials( GLcontext
*ctx
, GLboolean mode
)
278 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
279 tnl
->IsolateMaterials
= mode
;
283 _tnl_allow_vertex_fog( GLcontext
*ctx
, GLboolean value
)
285 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
286 tnl
->AllowVertexFog
= value
;
287 tnl
->_DoVertexFog
= (tnl
->AllowVertexFog
&& (ctx
->Hint
.Fog
!= GL_NICEST
))
288 || !tnl
->AllowPixelFog
;
293 _tnl_allow_pixel_fog( GLcontext
*ctx
, GLboolean value
)
295 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
296 tnl
->AllowPixelFog
= value
;
297 tnl
->_DoVertexFog
= (tnl
->AllowVertexFog
&& (ctx
->Hint
.Fog
!= GL_NICEST
))
298 || !tnl
->AllowPixelFog
;