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/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
**************************************************************************/
#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"
/***************************************
* Mesa's Driver Functions
***************************************/
/* This is the extension list explicitly enabled by the client and
* excludes functionality available in Mesa and also excludes legacy
* extensions. It is recognized that in an open source driver, those
* extensions will probably be re-enabled.
*/
static const GLubyte *i830GetString( GLcontext *ctx, GLenum name )
{
if (name == GL_EXTENSIONS)
return
"GL_ARB_multitexture "
"GL_ARB_texture_border_clamp "
"GL_ARB_texture_compression "
"GL_ARB_texture_env_add "
"GL_ARB_texture_env_combine "
"GL_ARB_texture_env_dot3 "
"GL_ARB_texture_mirrored_repeat "
"GL_ARB_transpose_matrix "
"GL_ARB_vertex_buffer_object "
"GL_ARB_vertex_program "
"GL_ARB_window_pos "
"GL_EXT_abgr "
"GL_EXT_bgra "
"GL_EXT_blend_color "
"GL_EXT_blend_func_separate "
"GL_EXT_blend_minmax "
"GL_EXT_blend_subtract "
"GL_EXT_clip_volume_hint "
"GL_EXT_compiled_vertex_array "
"GL_EXT_draw_range_elements "
"GL_EXT_fog_coord "
"GL_EXT_multi_draw_arrays "
"GL_EXT_packed_pixels "
"GL_EXT_rescale_normal "
"GL_EXT_secondary_color "
"GL_EXT_separate_specular_color "
"GL_EXT_stencil_wrap "
"GL_EXT_texture_env_add "
"GL_EXT_texture_env_combine "
"GL_EXT_texture_filter_anisotropic "
"GL_IBM_texture_mirrored_repeat "
"GL_MESA_ycbcr_texture "
"GL_MESA_window_pos "
"GL_NV_texgen_reflection "
"GL_SGIS_generate_mipmap ";
return intelGetString( ctx, name );
}
static void i830InitDriverFunctions( struct dd_function_table *functions )
{
intelInitDriverFunctions( functions );
i830InitStateFuncs( functions );
i830InitTextureFuncs( functions );
functions->GetString = i830GetString;
}
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 */
0, /* max CUBE. not supported */
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;
i830InitState( i830 );
_tnl_allow_vertex_fog( ctx, 1 );
_tnl_allow_pixel_fog( ctx, 0 );
return GL_TRUE;
}
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