src/mesa/drivers/dri/i915tex/i830_context.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * 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, sub license, 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 portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "i830_context.h"
  29 #include "imports.h"
  30 #include "texmem.h"
  31 #include "intel_tex.h"
  32 #include "tnl/tnl.h"
  33 #include "tnl/t_vertex.h"
  34 #include "tnl/t_context.h"
  35 #include "utils.h"
  36
  37 /***************************************
  38  * Mesa's Driver Functions
  39  ***************************************/
  40
  41 static const struct dri_extension i830_extensions[] = {
  42    {"GL_ARB_texture_env_crossbar", NULL},
  43    {NULL, NULL}
  44 };
  45
  46
  47 static void
  48 i830InitDriverFunctions(struct dd_function_table *functions)
  49 {
  50    intelInitDriverFunctions(functions);
  51    i830InitStateFuncs(functions);
  52    i830InitTextureFuncs(functions);
  53 }
  54
  55
  56 GLboolean
  57 i830CreateContext(const __GLcontextModes * mesaVis,
  58                   __DRIcontextPrivate * driContextPriv,
  59                   void *sharedContextPrivate)
  60 {
  61    struct dd_function_table functions;
  62    struct i830_context *i830 = CALLOC_STRUCT(i830_context);
  63    struct intel_context *intel = &i830->intel;
  64    GLcontext *ctx = &intel->ctx;
  65    if (!i830)
  66       return GL_FALSE;
  67
  68    i830InitVtbl(i830);
  69    i830InitDriverFunctions(&functions);
  70
  71    if (!intelInitContext(intel, mesaVis, driContextPriv,
  72                          sharedContextPrivate, &functions)) {
  73       FREE(i830);
  74       return GL_FALSE;
  75    }
  76
  77    intel->ctx.Const.MaxTextureUnits = I830_TEX_UNITS;
  78    intel->ctx.Const.MaxTextureImageUnits = I830_TEX_UNITS;
  79    intel->ctx.Const.MaxTextureCoordUnits = I830_TEX_UNITS;
  80
  81    /* Advertise the full hardware capabilities.  The new memory
  82     * manager should cope much better with overload situations:
  83     */
  84    ctx->Const.MaxTextureLevels = 12;
  85    ctx->Const.Max3DTextureLevels = 9;
  86    ctx->Const.MaxCubeTextureLevels = 11;
  87    ctx->Const.MaxTextureRectSize = (1 << 11);
  88    ctx->Const.MaxTextureUnits = I830_TEX_UNITS;
  89
  90    _tnl_init_vertices(ctx, ctx->Const.MaxArrayLockSize + 12,
  91                       18 * sizeof(GLfloat));
  92
  93    intel->verts = TNL_CONTEXT(ctx)->clipspace.vertex_buf;
  94
  95    driInitExtensions(ctx, i830_extensions, GL_FALSE);
  96
  97    i830InitState(i830);
  98    i830InitMetaFuncs(i830);
  99
 100    _tnl_allow_vertex_fog(ctx, 1);
 101    _tnl_allow_pixel_fog(ctx, 0);
 102
 103    return GL_TRUE;
 104 }