1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
28 #include "i830_context.h"
31 #include "intel_tex.h"
33 #include "tnl/t_vertex.h"
34 #include "tnl/t_context.h"
37 /***************************************
38 * Mesa's Driver Functions
39 ***************************************/
41 static const struct dri_extension i830_extensions
[] =
43 { "GL_ARB_texture_env_crossbar", NULL
},
48 static void i830InitDriverFunctions( struct dd_function_table
*functions
)
50 intelInitDriverFunctions( functions
);
51 i830InitStateFuncs( functions
);
52 i830InitTextureFuncs( functions
);
56 GLboolean
i830CreateContext( const __GLcontextModes
*mesaVis
,
57 __DRIcontextPrivate
*driContextPriv
,
58 void *sharedContextPrivate
)
60 struct dd_function_table functions
;
61 i830ContextPtr i830
= (i830ContextPtr
) CALLOC_STRUCT(i830_context
);
62 intelContextPtr intel
= &i830
->intel
;
63 GLcontext
*ctx
= &intel
->ctx
;
65 if (!i830
) return GL_FALSE
;
68 i830InitDriverFunctions( &functions
);
70 if (!intelInitContext( intel
, mesaVis
, driContextPriv
,
71 sharedContextPrivate
, &functions
)) {
76 intel
->ctx
.Const
.MaxTextureUnits
= I830_TEX_UNITS
;
77 intel
->ctx
.Const
.MaxTextureImageUnits
= I830_TEX_UNITS
;
78 intel
->ctx
.Const
.MaxTextureCoordUnits
= I830_TEX_UNITS
;
81 intel
->texture_heaps
[0] =
82 driCreateTextureHeap( 0, intel
,
83 intel
->intelScreen
->tex
.size
,
86 intel
->sarea
->texList
,
87 & intel
->sarea
->texAge
,
89 sizeof( struct i830_texture_object
),
90 (destroy_texture_object_t
*)intelDestroyTexObj
);
92 /* FIXME: driCalculateMaxTextureLevels assumes that mipmaps are tightly
93 * FIXME: packed, but they're not in Intel graphics hardware.
95 intel
->ctx
.Const
.MaxTextureUnits
= I830_TEX_UNITS
;
96 i
= driQueryOptioni( &intel
->intelScreen
->optionCache
, "allow_large_textures");
97 driCalculateMaxTextureLevels( intel
->texture_heaps
,
101 11, /* max 2D texture size is 2048x2048 */
102 8, /* max 3D texture size is 256^3 */
103 10, /* max CUBE texture size is 1024x1024 */
104 11, /* max RECT. supported */
109 _tnl_init_vertices( ctx
, ctx
->Const
.MaxArrayLockSize
+ 12,
110 18 * sizeof(GLfloat
) );
112 intel
->verts
= TNL_CONTEXT(ctx
)->clipspace
.vertex_buf
;
114 driInitExtensions( ctx
, i830_extensions
, GL_FALSE
);
116 i830InitState( i830
);
119 _tnl_allow_vertex_fog( ctx
, 1 );
120 _tnl_allow_pixel_fog( ctx
, 0 );