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 #include "shader/shader_api.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 static void brwLinkProgram(GLcontext *ctx, GLuint program)
  66 {
  67         struct brw_context *brw = brw_context(ctx);
  68         struct brw_vertex_program *vert_prog;
  69         struct brw_fragment_program *frag_prog;
  70         struct gl_shader_program *sh_prog;
  71         _mesa_link_program(ctx, program);
  72
  73         sh_prog = _mesa_lookup_shader_program(ctx, program);
  74         if (sh_prog) {
  75             sh_prog->FragmentProgram =
  76                 _mesa_realloc(sh_prog->FragmentProgram,
  77                         sizeof(struct gl_fragment_program),
  78                         sizeof(struct brw_fragment_program));
  79             frag_prog = (struct brw_fragment_program *)sh_prog->FragmentProgram;
  80             frag_prog->id = brw->program_id++;
  81             sh_prog->VertexProgram = _mesa_realloc(sh_prog->VertexProgram,
  82                     sizeof(struct gl_vertex_program),
  83                     sizeof(struct brw_vertex_program));
  84             vert_prog = (struct brw_vertex_program *)sh_prog->VertexProgram;
  85             vert_prog->id = brw->program_id++;
  86         }
  87 }
  88
  89 static void brwUseProgram(GLcontext *ctx, GLuint program)
  90 {
  91         struct brw_context *brw = brw_context(ctx);
  92         struct gl_shader_program *sh_prog;
  93         _mesa_use_program(ctx, program);
  94         sh_prog = ctx->Shader.CurrentProgram;
  95         if (sh_prog) {
  96             ctx->VertexProgram.Enabled = GL_TRUE;
  97             ctx->FragmentProgram.Enabled = GL_TRUE;
  98             brw->attribs.VertexProgram->Current = sh_prog->VertexProgram;
  99             brw->attribs.FragmentProgram->Current = sh_prog->FragmentProgram;
 100             brw->state.dirty.brw |= BRW_NEW_VERTEX_PROGRAM;
 101             brw->state.dirty.brw |= BRW_NEW_FRAGMENT_PROGRAM;
 102         }
 103 }
 104
 105 static void brwInitProgFuncs( struct dd_function_table *functions )
 106 {
 107    functions->UseProgram = brwUseProgram;
 108    functions->LinkProgram = brwLinkProgram;
 109 }
 110 static void brwInitDriverFunctions( struct dd_function_table *functions )
 111 {
 112    intelInitDriverFunctions( functions );
 113    brwInitTextureFuncs( functions );
 114    brwInitFragProgFuncs( functions );
 115    brwInitProgFuncs( functions );
 116 }
 117
 118
 119 static void brw_init_attribs( struct brw_context *brw )
 120 {
 121    GLcontext *ctx = &brw->intel.ctx;
 122
 123    brw->attribs.Color = &ctx->Color;
 124    brw->attribs.Depth = &ctx->Depth;
 125    brw->attribs.Fog = &ctx->Fog;
 126    brw->attribs.Hint = &ctx->Hint;
 127    brw->attribs.Light = &ctx->Light;
 128    brw->attribs.Line = &ctx->Line;
 129    brw->attribs.Point = &ctx->Point;
 130    brw->attribs.Polygon = &ctx->Polygon;
 131    brw->attribs.Scissor = &ctx->Scissor;
 132    brw->attribs.Stencil = &ctx->Stencil;
 133    brw->attribs.Texture = &ctx->Texture;
 134    brw->attribs.Transform = &ctx->Transform;
 135    brw->attribs.Viewport = &ctx->Viewport;
 136    brw->attribs.VertexProgram = &ctx->VertexProgram;
 137    brw->attribs.FragmentProgram = &ctx->FragmentProgram;
 138    brw->attribs.PolygonStipple = &ctx->PolygonStipple[0];
 139 }
 140
 141
 142 GLboolean brwCreateContext( const __GLcontextModes *mesaVis,
 143                             __DRIcontextPrivate *driContextPriv,
 144                             void *sharedContextPrivate)
 145 {
 146    struct dd_function_table functions;
 147    struct brw_context *brw = (struct brw_context *) CALLOC_STRUCT(brw_context);
 148    struct intel_context *intel = &brw->intel;
 149    GLcontext *ctx = &intel->ctx;
 150
 151    if (!brw) {
 152       _mesa_printf("%s: failed to alloc context\n", __FUNCTION__);
 153       return GL_FALSE;
 154    }
 155
 156    brwInitVtbl( brw );
 157    brwInitDriverFunctions( &functions );
 158
 159    if (!intelInitContext( intel, mesaVis, driContextPriv,
 160                           sharedContextPrivate, &functions )) {
 161       _mesa_printf("%s: failed to init intel context\n", __FUNCTION__);
 162       FREE(brw);
 163       return GL_FALSE;
 164    }
 165
 166    ctx->Const.MaxTextureUnits = BRW_MAX_TEX_UNIT;
 167    ctx->Const.MaxTextureImageUnits = BRW_MAX_TEX_UNIT;
 168    ctx->Const.MaxTextureCoordUnits = BRW_MAX_TEX_UNIT;
 169
 170
 171    /* Advertise the full hardware capabilities.  The new memory
 172     * manager should cope much better with overload situations:
 173     */
 174    ctx->Const.MaxTextureLevels = 12;
 175    ctx->Const.Max3DTextureLevels = 9;
 176    ctx->Const.MaxCubeTextureLevels = 12;
 177    ctx->Const.MaxTextureRectSize = (1<<11);
 178    ctx->Const.MaxTextureUnits = BRW_MAX_TEX_UNIT;
 179
 180 /*    ctx->Const.MaxNativeVertexProgramTemps = 32; */
 181
 182
 183    driInitExtensions( ctx, brw_extensions, GL_FALSE );
 184
 185    brw_aub_init( brw );
 186
 187    brw_init_attribs( brw );
 188    brw_init_metaops( brw );
 189    brw_init_state( brw );
 190
 191    brw->state.dirty.mesa = ~0;
 192    brw->state.dirty.brw = ~0;
 193
 194    memset(&brw->wm.bind, ~0, sizeof(brw->wm.bind));
 195
 196    brw->emit_state_always = 0;
 197
 198    ctx->FragmentProgram._MaintainTexEnvProgram = 1;
 199
 200    brw_draw_init( brw );
 201
 202    brw_ProgramCacheInit( ctx );
 203
 204    brw_FrameBufferTexInit( brw );
 205
 206    {
 207       const char *filename = getenv("INTEL_REPLAY");
 208       if (filename) {
 209          brw_playback_aubfile(brw, filename);
 210          exit(0);
 211       }
 212    }
 213
 214    return GL_TRUE;
 215 }
 216