src/mesa/drivers/dri/i965/brw_context.c

   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_aub.h"
  35 #include "brw_defines.h"
  36 #include "brw_draw.h"
  37 #include "brw_exec.h"
  38 #include "brw_save.h"
  39 #include "brw_vs.h"
  40 #include "imports.h"
  41 #include "intel_tex.h"
  42 #include "intel_blit.h"
  43 #include "intel_batchbuffer.h"
  44
  45 #include "utils.h"
  46 #include "api_noop.h"
  47 #include "vtxfmt.h"
  48
  49 /***************************************
  50  * Mesa's Driver Functions
  51  ***************************************/
  52
  53 static const struct dri_extension brw_extensions[] =
  54 {
  55     { "GL_ARB_depth_texture",              NULL },
  56     { "GL_ARB_fragment_program",           NULL },
  57     { "GL_ARB_shadow",                     NULL },
  58     { "GL_EXT_shadow_funcs",               NULL },
  59     /* ARB extn won't work if not enabled */
  60     { "GL_SGIX_depth_texture",             NULL },
  61     { "GL_ARB_texture_env_crossbar",       NULL },
  62     { NULL,                                NULL }
  63 };
  64
  65
  66 static void brwInitDriverFunctions( struct dd_function_table *functions )
  67 {
  68    intelInitDriverFunctions( functions );
  69    brwInitTextureFuncs( functions );
  70    brwInitFragProgFuncs( functions );
  71 }
  72
  73
  74 static 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
  97 GLboolean 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    ctx->Const.MaxTextureUnits = BRW_MAX_TEX_UNIT;
 122    ctx->Const.MaxTextureImageUnits = BRW_MAX_TEX_UNIT;
 123    ctx->Const.MaxTextureCoordUnits = BRW_MAX_TEX_UNIT;
 124
 125
 126    /* Advertise the full hardware capabilities.  The new memory
 127     * manager should cope much better with overload situations:
 128     */
 129    ctx->Const.MaxTextureLevels = 12;
 130    ctx->Const.Max3DTextureLevels = 9;
 131    ctx->Const.MaxCubeTextureLevels = 12;
 132    ctx->Const.MaxTextureRectSize = (1<<11);
 133    ctx->Const.MaxTextureUnits = BRW_MAX_TEX_UNIT;
 134
 135 /*    ctx->Const.MaxNativeVertexProgramTemps = 32; */
 136
 137
 138    driInitExtensions( ctx, brw_extensions, GL_FALSE );
 139
 140    brw_aub_init( brw );
 141    brw->intel.vtbl.aub_wrap = brw_aub_wrap;
 142
 143
 144    brw_init_attribs( brw );
 145    brw_init_metaops( brw );
 146    brw_init_state( brw );
 147
 148    brw->state.dirty.mesa = ~0;
 149    brw->state.dirty.brw = ~0;
 150
 151    memset(&brw->wm.bind, ~0, sizeof(brw->wm.bind));
 152
 153    brw->emit_state_always = 0;
 154
 155    ctx->_MaintainTexEnvProgram = 1;
 156
 157    brw_draw_init( brw );
 158
 159    brw_ProgramCacheInit( ctx );
 160
 161    /* Hook our functions into exec and compile dispatch tables.  Only
 162     * fallback on out-of-memory situations.
 163     */
 164    brw_exec_init( ctx );
 165    brw_save_init( ctx );
 166
 167    return GL_TRUE;
 168 }
 169