brw_context.c revision ecadb51bbcb972a79f3ed79e65a7986b9396e757 
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 "main/imports.h"
34#include "main/api_noop.h"
35#include "main/vtxfmt.h"
36#include "shader/shader_api.h"
37
38#include "brw_context.h"
39#include "brw_defines.h"
40#include "brw_draw.h"
41#include "brw_vs.h"
42#include "intel_tex.h"
43#include "intel_blit.h"
44#include "intel_batchbuffer.h"
45#include "intel_pixel.h"
46#include "intel_span.h"
47#include "tnl/t_pipeline.h"
48
49#include "utils.h"
50
51
52/***************************************
53 * Mesa's Driver Functions
54 ***************************************/
55
56static void brwUseProgram(GLcontext *ctx, GLuint program)
57{
58   _mesa_use_program(ctx, program);
59}
60
61static void brwInitProgFuncs( struct dd_function_table *functions )
62{
63   functions->UseProgram = brwUseProgram;
64}
65static void brwInitDriverFunctions( struct dd_function_table *functions )
66{
67   intelInitDriverFunctions( functions );
68
69   brwInitFragProgFuncs( functions );
70   brwInitProgFuncs( functions );
71}
72
73
74static void brw_init_attribs( struct brw_context *brw )
75{
76   GLcontext *ctx = &brw->intel.ctx;
77
78   brw->attribs.Color = &ctx->Color;
79   brw->attribs.Depth = &ctx->Depth;
80   brw->attribs.Fog = &ctx->Fog;
81   brw->attribs.Hint = &ctx->Hint;
82   brw->attribs.Light = &ctx->Light;
83   brw->attribs.Line = &ctx->Line;
84   brw->attribs.Point = &ctx->Point;
85   brw->attribs.Polygon = &ctx->Polygon;
86   brw->attribs.Scissor = &ctx->Scissor;
87   brw->attribs.Stencil = &ctx->Stencil;
88   brw->attribs.Texture = &ctx->Texture;
89   brw->attribs.Transform = &ctx->Transform;
90   brw->attribs.Viewport = &ctx->Viewport;
91   brw->attribs.VertexProgram = &ctx->VertexProgram;
92   brw->attribs.FragmentProgram = &ctx->FragmentProgram;
93   brw->attribs.PolygonStipple = &ctx->PolygonStipple[0];
94}
95
96
97GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
98			    __DRIcontextPrivate *driContextPriv,
99			    void *sharedContextPrivate)
100{
101   struct dd_function_table functions;
102   struct brw_context *brw = (struct brw_context *) CALLOC_STRUCT(brw_context);
103   struct intel_context *intel = &brw->intel;
104   GLcontext *ctx = &intel->ctx;
105
106   if (!brw) {
107      _mesa_printf("%s: failed to alloc context\n", __FUNCTION__);
108      return GL_FALSE;
109   }
110
111   brwInitVtbl( brw );
112   brwInitDriverFunctions( &functions );
113
114   if (!intelInitContext( intel, mesaVis, driContextPriv,
115			  sharedContextPrivate, &functions )) {
116      _mesa_printf("%s: failed to init intel context\n", __FUNCTION__);
117      FREE(brw);
118      return GL_FALSE;
119   }
120
121   /* Initialize swrast, tnl driver tables: */
122   intelInitSpanFuncs(ctx);
123
124   TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
125
126   ctx->Const.MaxTextureUnits = BRW_MAX_TEX_UNIT;
127   ctx->Const.MaxTextureImageUnits = BRW_MAX_TEX_UNIT;
128   ctx->Const.MaxTextureCoordUnits = BRW_MAX_TEX_UNIT;
129   ctx->Const.MaxVertexTextureImageUnits = 0; /* no vertex shader textures */
130
131   /* Advertise the full hardware capabilities.  The new memory
132    * manager should cope much better with overload situations:
133    */
134   ctx->Const.MaxTextureLevels = 12;
135   ctx->Const.Max3DTextureLevels = 9;
136   ctx->Const.MaxCubeTextureLevels = 12;
137   ctx->Const.MaxTextureRectSize = (1<<11);
138
139/*    ctx->Const.MaxNativeVertexProgramTemps = 32; */
140
141   brw_init_attribs( brw );
142   brw_init_metaops( brw );
143   brw_init_state( brw );
144
145   brw->state.dirty.mesa = ~0;
146   brw->state.dirty.brw = ~0;
147
148   brw->emit_state_always = 0;
149
150   ctx->FragmentProgram._MaintainTexEnvProgram = 1;
151
152   brw_draw_init( brw );
153
154   brw_ProgramCacheInit( ctx );
155
156   return GL_TRUE;
157}
158
159