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_vs.h"
  38 #include "imports.h"
  39 #include "intel_tex.h"
  40 #include "intel_blit.h"
  41 #include "intel_batchbuffer.h"
  42
  43 #include "utils.h"
  44 #include "api_noop.h"
  45 #include "vtxfmt.h"
  46
  47 /***************************************
  48  * Mesa's Driver Functions
  49  ***************************************/
  50
  51 static const struct dri_extension brw_extensions[] =
  52 {
  53     { "GL_ARB_depth_texture",              NULL },
  54     { "GL_ARB_fragment_program",           NULL },
  55     { "GL_ARB_shadow",                     NULL },
  56     { "GL_EXT_shadow_funcs",               NULL },
  57     /* ARB extn won't work if not enabled */
  58     { "GL_SGIX_depth_texture",             NULL },
  59     { "GL_ARB_texture_env_crossbar",       NULL },
  60     { NULL,                                NULL }
  61 };
  62
  63
  64 static void brwInitDriverFunctions( struct dd_function_table *functions )
  65 {
  66    intelInitDriverFunctions( functions );
  67    brwInitTextureFuncs( functions );
  68    brwInitFragProgFuncs( functions );
  69 }
  70
  71
  72 static void brw_init_attribs( struct brw_context *brw )
  73 {
  74    GLcontext *ctx = &brw->intel.ctx;
  75
  76    brw->attribs.Color = &ctx->Color;
  77    brw->attribs.Depth = &ctx->Depth;
  78    brw->attribs.Fog = &ctx->Fog;
  79    brw->attribs.Hint = &ctx->Hint;
  80    brw->attribs.Light = &ctx->Light;
  81    brw->attribs.Line = &ctx->Line;
  82    brw->attribs.Point = &ctx->Point;
  83    brw->attribs.Polygon = &ctx->Polygon;
  84    brw->attribs.Scissor = &ctx->Scissor;
  85    brw->attribs.Stencil = &ctx->Stencil;
  86    brw->attribs.Texture = &ctx->Texture;
  87    brw->attribs.Transform = &ctx->Transform;
  88    brw->attribs.Viewport = &ctx->Viewport;
  89    brw->attribs.VertexProgram = &ctx->VertexProgram;
  90    brw->attribs.FragmentProgram = &ctx->FragmentProgram;
  91    brw->attribs.PolygonStipple = &ctx->PolygonStipple[0];
  92 }
  93
  94
  95 GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
  96                             __DRIcontextPrivate *driContextPriv,
  97                             void *sharedContextPrivate)
  98 {
  99    struct dd_function_table functions;
 100    struct brw_context *brw = (struct brw_context *) CALLOC_STRUCT(brw_context);
 101    struct intel_context *intel = &brw->intel;
 102    GLcontext *ctx = &intel->ctx;
 103
 104    if (!brw) {
 105       _mesa_printf("%s: failed to alloc context\n", __FUNCTION__);
 106       return GL_FALSE;
 107    }
 108
 109    brwInitVtbl( brw );
 110    brwInitDriverFunctions( &functions );
 111
 112    if (!intelInitContext( intel, mesaVis, driContextPriv,
 113                           sharedContextPrivate, &functions )) {
 114       _mesa_printf("%s: failed to init intel context\n", __FUNCTION__);
 115       FREE(brw);
 116       return GL_FALSE;
 117    }
 118
 119    ctx->Const.MaxTextureUnits = BRW_MAX_TEX_UNIT;
 120    ctx->Const.MaxTextureImageUnits = BRW_MAX_TEX_UNIT;
 121    ctx->Const.MaxTextureCoordUnits = BRW_MAX_TEX_UNIT;
 122
 123
 124    /* Advertise the full hardware capabilities.  The new memory
 125     * manager should cope much better with overload situations:
 126     */
 127    ctx->Const.MaxTextureLevels = 12;
 128    ctx->Const.Max3DTextureLevels = 9;
 129    ctx->Const.MaxCubeTextureLevels = 12;
 130    ctx->Const.MaxTextureRectSize = (1<<11);
 131    ctx->Const.MaxTextureUnits = BRW_MAX_TEX_UNIT;
 132
 133 /*    ctx->Const.MaxNativeVertexProgramTemps = 32; */
 134
 135
 136    driInitExtensions( ctx, brw_extensions, GL_FALSE );
 137
 138    brw_aub_init( brw );
 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    memset(&brw->wm.bind, ~0, sizeof(brw->wm.bind));
 148
 149    brw->emit_state_always = 0;
 150
 151    ctx->_MaintainTexEnvProgram = 1;
 152
 153    brw_draw_init( brw );
 154
 155    brw_ProgramCacheInit( ctx );
 156
 157    brw_FrameBufferTexInit( brw );
 158
 159    {
 160       const char *filename = getenv("INTEL_REPLAY");
 161       if (filename) {
 162          brw_playback_aubfile(brw, filename);
 163          exit(0);
 164       }
 165    }
 166
 167    return GL_TRUE;
 168 }
 169