brw_context.c revision de1e9880f8b239768293f7f434a9117dfab20162 
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   /* CopyPixels can be accelerated even with the current memory
69    * manager:
70    */
71   if (!getenv("INTEL_NO_BLIT")) {
72      functions->CopyPixels = intelCopyPixels;
73      functions->Bitmap = intelBitmap;
74   }
75
76   brwInitFragProgFuncs( functions );
77   brwInitProgFuncs( functions );
78}
79
80
81static void brw_init_attribs( struct brw_context *brw )
82{
83   GLcontext *ctx = &brw->intel.ctx;
84
85   brw->attribs.Color = &ctx->Color;
86   brw->attribs.Depth = &ctx->Depth;
87   brw->attribs.Fog = &ctx->Fog;
88   brw->attribs.Hint = &ctx->Hint;
89   brw->attribs.Light = &ctx->Light;
90   brw->attribs.Line = &ctx->Line;
91   brw->attribs.Point = &ctx->Point;
92   brw->attribs.Polygon = &ctx->Polygon;
93   brw->attribs.Scissor = &ctx->Scissor;
94   brw->attribs.Stencil = &ctx->Stencil;
95   brw->attribs.Texture = &ctx->Texture;
96   brw->attribs.Transform = &ctx->Transform;
97   brw->attribs.Viewport = &ctx->Viewport;
98   brw->attribs.VertexProgram = &ctx->VertexProgram;
99   brw->attribs.FragmentProgram = &ctx->FragmentProgram;
100   brw->attribs.PolygonStipple = &ctx->PolygonStipple[0];
101}
102
103
104GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
105			    __DRIcontextPrivate *driContextPriv,
106			    void *sharedContextPrivate)
107{
108   struct dd_function_table functions;
109   struct brw_context *brw = (struct brw_context *) CALLOC_STRUCT(brw_context);
110   struct intel_context *intel = &brw->intel;
111   GLcontext *ctx = &intel->ctx;
112
113   if (!brw) {
114      _mesa_printf("%s: failed to alloc context\n", __FUNCTION__);
115      return GL_FALSE;
116   }
117
118   brwInitVtbl( brw );
119   brwInitDriverFunctions( &functions );
120
121   if (!intelInitContext( intel, mesaVis, driContextPriv,
122			  sharedContextPrivate, &functions )) {
123      _mesa_printf("%s: failed to init intel context\n", __FUNCTION__);
124      FREE(brw);
125      return GL_FALSE;
126   }
127
128   /* Initialize swrast, tnl driver tables: */
129   intelInitSpanFuncs(ctx);
130
131   TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
132
133   ctx->Const.MaxTextureUnits = BRW_MAX_TEX_UNIT;
134   ctx->Const.MaxTextureImageUnits = BRW_MAX_TEX_UNIT;
135   ctx->Const.MaxTextureCoordUnits = BRW_MAX_TEX_UNIT;
136
137
138   /* Advertise the full hardware capabilities.  The new memory
139    * manager should cope much better with overload situations:
140    */
141   ctx->Const.MaxTextureLevels = 12;
142   ctx->Const.Max3DTextureLevels = 9;
143   ctx->Const.MaxCubeTextureLevels = 12;
144   ctx->Const.MaxTextureRectSize = (1<<11);
145   ctx->Const.MaxTextureUnits = BRW_MAX_TEX_UNIT;
146
147/*    ctx->Const.MaxNativeVertexProgramTemps = 32; */
148
149   brw_init_attribs( brw );
150   brw_init_metaops( brw );
151   brw_init_state( brw );
152
153   brw->state.dirty.mesa = ~0;
154   brw->state.dirty.brw = ~0;
155
156   brw->emit_state_always = 0;
157
158   ctx->FragmentProgram._MaintainTexEnvProgram = 1;
159
160   brw_draw_init( brw );
161
162   brw_ProgramCacheInit( ctx );
163
164   return GL_TRUE;
165}
166
167