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/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include "i830_context.h"
#include "imports.h"
#include "texmem.h"
#include "intel_tex.h"
#include "tnl/tnl.h"
#include "tnl/t_vertex.h"
#include "tnl/t_context.h"
#include "utils.h"
/***************************************
* Mesa's Driver Functions
***************************************/
static const char * const card_extensions[] =
{
"GL_ARB_texture_env_crossbar",
"GL_NV_blend_square",
NULL
};
static void i830InitDriverFunctions( struct dd_function_table *functions )
{
intelInitDriverFunctions( functions );
i830InitStateFuncs( functions );
i830InitTextureFuncs( functions );
}
GLboolean i830CreateContext( const __GLcontextModes *mesaVis,
__DRIcontextPrivate *driContextPriv,
void *sharedContextPrivate)
{
struct dd_function_table functions;
i830ContextPtr i830 = (i830ContextPtr) CALLOC_STRUCT(i830_context);
intelContextPtr intel = &i830->intel;
GLcontext *ctx = &intel->ctx;
if (!i830) return GL_FALSE;
i830InitVtbl( i830 );
i830InitDriverFunctions( &functions );
if (!intelInitContext( intel, mesaVis, driContextPriv,
sharedContextPrivate, &functions )) {
FREE(i830);
return GL_FALSE;
}
intel->ctx.Const.MaxTextureUnits = I830_TEX_UNITS;
intel->ctx.Const.MaxTextureImageUnits = I830_TEX_UNITS;
intel->ctx.Const.MaxTextureCoordUnits = I830_TEX_UNITS;
intel->nr_heaps = 1;
intel->texture_heaps[0] =
driCreateTextureHeap( 0, intel,
intel->intelScreen->textureSize,
12,
I830_NR_TEX_REGIONS,
intel->sarea->texList,
& intel->sarea->texAge,
& intel->swapped,
sizeof( struct i830_texture_object ),
(destroy_texture_object_t *)intelDestroyTexObj );
/* FIXME: driCalculateMaxTextureLevels assumes that mipmaps are tightly
* FIXME: packed, but they're not in Intel graphics hardware.
*/
intel->ctx.Const.MaxTextureUnits = 1;
driCalculateMaxTextureLevels( intel->texture_heaps,
intel->nr_heaps,
&intel->ctx.Const,
4,
11, /* max 2D texture size is 2048x2048 */
8, /* max 3D texture size is 256^3 */
10, /* max CUBE texture size is 1024x1024 */
11, /* max RECT. supported */
12,
GL_FALSE );
intel->ctx.Const.MaxTextureUnits = I830_TEX_UNITS;
_tnl_init_vertices( ctx, ctx->Const.MaxArrayLockSize + 12,
18 * sizeof(GLfloat) );
intel->verts = TNL_CONTEXT(ctx)->clipspace.vertex_buf;
driInitExtensions( ctx, card_extensions, GL_FALSE );
i830InitState( i830 );
_tnl_allow_vertex_fog( ctx, 1 );
_tnl_allow_pixel_fog( ctx, 0 );
return GL_TRUE;
}
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