brw_context.c revision f75843a517bd188639e6866db2a7b04de3524e16 
1/*
2 Copyright (C) Intel Corp.  2006.  All Rights Reserved.
3 Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
4 develop this 3D driver.
5
6 Permission is hereby granted, free of charge, to any person obtaining
7 a copy of this software and associated documentation files (the
8 "Software"), to deal in the Software without restriction, including
9 without limitation the rights to use, copy, modify, merge, publish,
10 distribute, sublicense, and/or sell copies of the Software, and to
11 permit persons to whom the Software is furnished to do so, subject to
12 the following conditions:
13
14 The above copyright notice and this permission notice (including the
15 next paragraph) shall be included in all copies or substantial
16 portions of the Software.
17
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
22 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25
26 **********************************************************************/
27 /*
28  * Authors:
29  *   Keith Whitwell <keith@tungstengraphics.com>
30  */
31
32
33#include "brw_context.h"
34#include "brw_defines.h"
35#include "brw_draw.h"
36#include "brw_vs.h"
37#include "imports.h"
38#include "intel_tex.h"
39#include "intel_blit.h"
40#include "intel_batchbuffer.h"
41#include "intel_pixel.h"
42#include "intel_span.h"
43#include "tnl/t_pipeline.h"
44
45#include "utils.h"
46#include "api_noop.h"
47#include "vtxfmt.h"
48
49#include "shader/shader_api.h"
50
51/***************************************
52 * Mesa's Driver Functions
53 ***************************************/
54
55static void brwUseProgram(GLcontext *ctx, GLuint program)
56{
57   _mesa_use_program(ctx, program);
58}
59
60static void brwInitProgFuncs( struct dd_function_table *functions )
61{
62   functions->UseProgram = brwUseProgram;
63}
64static void brwInitDriverFunctions( struct dd_function_table *functions )
65{
66   intelInitDriverFunctions( functions );
67
68   brwInitFragProgFuncs( functions );
69   brwInitProgFuncs( functions );
70}
71
72
73static void brw_init_attribs( struct brw_context *brw )
74{
75   GLcontext *ctx = &brw->intel.ctx;
76
77   brw->attribs.Color = &ctx->Color;
78   brw->attribs.Depth = &ctx->Depth;
79   brw->attribs.Fog = &ctx->Fog;
80   brw->attribs.Hint = &ctx->Hint;
81   brw->attribs.Light = &ctx->Light;
82   brw->attribs.Line = &ctx->Line;
83   brw->attribs.Point = &ctx->Point;
84   brw->attribs.Polygon = &ctx->Polygon;
85   brw->attribs.Scissor = &ctx->Scissor;
86   brw->attribs.Stencil = &ctx->Stencil;
87   brw->attribs.Texture = &ctx->Texture;
88   brw->attribs.Transform = &ctx->Transform;
89   brw->attribs.Viewport = &ctx->Viewport;
90   brw->attribs.VertexProgram = &ctx->VertexProgram;
91   brw->attribs.FragmentProgram = &ctx->FragmentProgram;
92   brw->attribs.PolygonStipple = &ctx->PolygonStipple[0];
93}
94
95
96GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
97			    __DRIcontextPrivate *driContextPriv,
98			    void *sharedContextPrivate)
99{
100   struct dd_function_table functions;
101   struct brw_context *brw = (struct brw_context *) CALLOC_STRUCT(brw_context);
102   struct intel_context *intel = &brw->intel;
103   GLcontext *ctx = &intel->ctx;
104
105   if (!brw) {
106      _mesa_printf("%s: failed to alloc context\n", __FUNCTION__);
107      return GL_FALSE;
108   }
109
110   brwInitVtbl( brw );
111   brwInitDriverFunctions( &functions );
112
113   if (!intelInitContext( intel, mesaVis, driContextPriv,
114			  sharedContextPrivate, &functions )) {
115      _mesa_printf("%s: failed to init intel context\n", __FUNCTION__);
116      FREE(brw);
117      return GL_FALSE;
118   }
119
120   /* Initialize swrast, tnl driver tables: */
121   intelInitSpanFuncs(ctx);
122
123   TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
124
125   ctx->Const.MaxTextureUnits = BRW_MAX_TEX_UNIT;
126   ctx->Const.MaxTextureImageUnits = BRW_MAX_TEX_UNIT;
127   ctx->Const.MaxTextureCoordUnits = BRW_MAX_TEX_UNIT;
128   ctx->Const.MaxVertexTextureImageUnits = 0; /* no vertex shader textures */
129
130   /* Advertise the full hardware capabilities.  The new memory
131    * manager should cope much better with overload situations:
132    */
133   ctx->Const.MaxTextureLevels = 12;
134   ctx->Const.Max3DTextureLevels = 9;
135   ctx->Const.MaxCubeTextureLevels = 12;
136   ctx->Const.MaxTextureRectSize = (1<<11);
137
138/*    ctx->Const.MaxNativeVertexProgramTemps = 32; */
139
140   brw_init_attribs( brw );
141   brw_init_metaops( brw );
142   brw_init_state( brw );
143
144   brw->state.dirty.mesa = ~0;
145   brw->state.dirty.brw = ~0;
146
147   brw->emit_state_always = 0;
148
149   ctx->FragmentProgram._MaintainTexEnvProgram = 1;
150
151   brw_draw_init( brw );
152
153   brw_ProgramCacheInit( ctx );
154
155   return GL_TRUE;
156}
157
158