2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2005 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"
38 #include "nvfragprog.h"
40 #include "t_context.h"
41 #include "t_array_api.h"
42 #include "t_vtx_api.h"
43 #include "t_save_api.h"
44 #include "t_pipeline.h"
50 _tnl_MakeCurrent( GLcontext
*ctx
,
51 GLframebuffer
*drawBuffer
,
52 GLframebuffer
*readBuffer
)
54 (void) ctx
; (void) drawBuffer
; (void) readBuffer
;
59 install_driver_callbacks( GLcontext
*ctx
)
61 ctx
->Driver
.NewList
= _tnl_NewList
;
62 ctx
->Driver
.EndList
= _tnl_EndList
;
63 ctx
->Driver
.FlushVertices
= _tnl_FlushVertices
;
64 ctx
->Driver
.SaveFlushVertices
= _tnl_SaveFlushVertices
;
65 ctx
->Driver
.MakeCurrent
= _tnl_MakeCurrent
;
66 ctx
->Driver
.BeginCallList
= _tnl_BeginCallList
;
67 ctx
->Driver
.EndCallList
= _tnl_EndCallList
;
73 _tnl_CreateContext( GLcontext
*ctx
)
77 /* Create the TNLcontext structure
79 ctx
->swtnl_context
= tnl
= (TNLcontext
*) CALLOC( sizeof(TNLcontext
) );
85 if (getenv("MESA_CODEGEN"))
86 tnl
->AllowCodegen
= GL_TRUE
;
90 tnl
->vb
.Size
= ctx
->Const
.MaxArrayLockSize
+ MAX_CLIPPED_VERTICES
;
93 /* Initialize tnl state and tnl->vtxfmt.
95 _tnl_save_init( ctx
);
96 _tnl_array_init( ctx
);
99 if (ctx
->_MaintainTnlProgram
)
100 _tnl_install_pipeline( ctx
, _tnl_vp_pipeline
);
102 _tnl_install_pipeline( ctx
, _tnl_default_pipeline
);
104 /* Initialize the arrayelt helper
106 if (!_ae_create_context( ctx
))
110 tnl
->NeedNdcCoords
= GL_TRUE
;
111 tnl
->LoopbackDListCassettes
= GL_FALSE
;
112 tnl
->CalcDListNormalLengths
= GL_TRUE
;
113 tnl
->AllowVertexFog
= GL_TRUE
;
114 tnl
->AllowPixelFog
= GL_TRUE
;
116 /* Hook our functions into exec and compile dispatch tables.
118 _mesa_install_exec_vtxfmt( ctx
, &tnl
->exec_vtxfmt
);
121 /* Set a few default values in the driver struct.
123 install_driver_callbacks(ctx
);
124 ctx
->Driver
.NeedFlush
= 0;
125 ctx
->Driver
.CurrentExecPrimitive
= PRIM_OUTSIDE_BEGIN_END
;
126 ctx
->Driver
.CurrentSavePrimitive
= PRIM_UNKNOWN
;
128 tnl
->Driver
.Render
.PrimTabElts
= _tnl_render_tab_elts
;
129 tnl
->Driver
.Render
.PrimTabVerts
= _tnl_render_tab_verts
;
130 tnl
->Driver
.NotifyMaterialChange
= _mesa_validate_all_lighting_tables
;
137 _tnl_DestroyContext( GLcontext
*ctx
)
139 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
141 _tnl_array_destroy( ctx
);
142 _tnl_vtx_destroy( ctx
);
143 _tnl_save_destroy( ctx
);
144 _tnl_destroy_pipeline( ctx
);
145 _ae_destroy_context( ctx
);
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
) {
173 tnl
->render_inputs
= (_TNL_BIT_POS
|
175 (ctx
->Texture
._EnabledCoordUnits
<< _TNL_ATTRIB_TEX0
));
177 if (NEED_SECONDARY_COLOR(ctx
))
178 tnl
->render_inputs
|= _TNL_BIT_COLOR1
;
181 tnl
->render_inputs
|= (_TNL_BIT_POS
|_TNL_BIT_INDEX
);
184 if (ctx
->Fog
.Enabled
||
185 (ctx
->FragmentProgram
._Active
&&
186 ctx
->FragmentProgram
._Current
->FogOption
!= GL_NONE
))
187 tnl
->render_inputs
|= _TNL_BIT_FOG
;
189 if (ctx
->Polygon
.FrontMode
!= GL_FILL
||
190 ctx
->Polygon
.BackMode
!= GL_FILL
)
191 tnl
->render_inputs
|= _TNL_BIT_EDGEFLAG
;
193 if (ctx
->RenderMode
== GL_FEEDBACK
)
194 tnl
->render_inputs
|= _TNL_BIT_TEX0
;
196 if (ctx
->Point
._Attenuated
||
197 (ctx
->VertexProgram
._Enabled
&& ctx
->VertexProgram
.PointSizeEnabled
))
198 tnl
->render_inputs
|= _TNL_BIT_POINTSIZE
;
203 _tnl_wakeup_exec( GLcontext
*ctx
)
205 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
207 install_driver_callbacks(ctx
);
208 ctx
->Driver
.NeedFlush
|= FLUSH_UPDATE_CURRENT
;
210 /* Hook our functions into exec and compile dispatch tables.
212 _mesa_install_exec_vtxfmt( ctx
, &tnl
->exec_vtxfmt
);
214 /* Call all appropriate driver callbacks to revive state.
216 _tnl_MakeCurrent( ctx
, ctx
->DrawBuffer
, ctx
->ReadBuffer
);
218 /* Assume we haven't been getting state updates either:
220 _tnl_InvalidateState( ctx
, ~0 );
222 if (ctx
->Light
.ColorMaterialEnabled
) {
223 _mesa_update_color_material( ctx
,
224 ctx
->Current
.Attrib
[VERT_ATTRIB_COLOR0
] );
230 _tnl_wakeup_save_exec( GLcontext
*ctx
)
232 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
234 _tnl_wakeup_exec( ctx
);
235 _mesa_install_save_vtxfmt( ctx
, &tnl
->save_vtxfmt
);
240 * Drivers call this function to tell the TCL module whether or not
241 * it wants Normalized Device Coords (NDC) computed. I.e. whether
242 * we should "Divide-by-W". Software renders will want that.
245 _tnl_need_projected_coords( GLcontext
*ctx
, GLboolean mode
)
247 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
248 if (tnl
->NeedNdcCoords
!= mode
) {
249 tnl
->NeedNdcCoords
= mode
;
250 _tnl_InvalidateState( ctx
, _NEW_PROJECTION
);
255 _tnl_need_dlist_loopback( GLcontext
*ctx
, GLboolean mode
)
257 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
258 tnl
->LoopbackDListCassettes
= mode
;
262 _tnl_need_dlist_norm_lengths( GLcontext
*ctx
, GLboolean mode
)
264 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
265 tnl
->CalcDListNormalLengths
= mode
;
269 _tnl_isolate_materials( GLcontext
*ctx
, GLboolean mode
)
271 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
272 tnl
->IsolateMaterials
= mode
;
276 _tnl_allow_vertex_fog( GLcontext
*ctx
, GLboolean value
)
278 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
279 tnl
->AllowVertexFog
= value
;
283 _tnl_allow_pixel_fog( GLcontext
*ctx
, GLboolean value
)
285 TNLcontext
*tnl
= TNL_CONTEXT(ctx
);
286 tnl
->AllowPixelFog
= value
;