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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 "i915_context.h"
#include "imports.h"
#include "intel_tex.h"
#include "intel_tris.h"
#include "tnl/t_context.h"
#include "tnl/t_pipeline.h"
#include "tnl/t_vertex.h"
#include "swrast/swrast.h"
#include "swrast_setup/swrast_setup.h"
#include "tnl/tnl.h"
#include "array_cache/acache.h"
#include "utils.h"
#include "i915_reg.h"
/***************************************
* Mesa's Driver Functions
***************************************/
static const struct dri_extension i915_extensions[] =
{
{ "GL_ARB_depth_texture", NULL },
{ "GL_ARB_fragment_program", NULL },
{ "GL_ARB_shadow", NULL },
{ "GL_ARB_texture_env_crossbar", NULL },
{ "GL_EXT_shadow_funcs", NULL },
/* ARB extn won't work if not enabled */
{ "GL_SGIX_depth_texture", NULL },
{ NULL, NULL }
};
/* Override intel default.
*/
static void i915InvalidateState( GLcontext *ctx, GLuint new_state )
{
_swrast_InvalidateState( ctx, new_state );
_swsetup_InvalidateState( ctx, new_state );
_ac_InvalidateState( ctx, new_state );
_tnl_InvalidateState( ctx, new_state );
_tnl_invalidate_vertex_state( ctx, new_state );
INTEL_CONTEXT(ctx)->NewGLState |= new_state;
/* Todo: gather state values under which tracked parameters become
* invalidated, add callbacks for things like
* ProgramLocalParameters, etc.
*/
{
struct i915_fragment_program *p =
(struct i915_fragment_program *)ctx->FragmentProgram._Current;
if (p && p->nr_params)
p->params_uptodate = 0;
}
if (new_state & (_NEW_FOG|_NEW_HINT|_NEW_PROGRAM))
i915_update_fog(ctx);
}
static void i915InitDriverFunctions( struct dd_function_table *functions )
{
intelInitDriverFunctions( functions );
i915InitStateFunctions( functions );
i915InitTextureFuncs( functions );
i915InitFragProgFuncs( functions );
functions->UpdateState = i915InvalidateState;
}
GLboolean i915CreateContext( const __GLcontextModes *mesaVis,
__DRIcontextPrivate *driContextPriv,
void *sharedContextPrivate)
{
struct dd_function_table functions;
i915ContextPtr i915 = (i915ContextPtr) CALLOC_STRUCT(i915_context);
intelContextPtr intel = &i915->intel;
GLcontext *ctx = &intel->ctx;
GLuint i;
if (!i915) return GL_FALSE;
i915InitVtbl( i915 );
i915InitDriverFunctions( &functions );
if (!intelInitContext( intel, mesaVis, driContextPriv,
sharedContextPrivate, &functions )) {
FREE(i915);
return GL_FALSE;
}
ctx->Const.MaxTextureUnits = I915_TEX_UNITS;
ctx->Const.MaxTextureImageUnits = I915_TEX_UNITS;
ctx->Const.MaxTextureCoordUnits = I915_TEX_UNITS;
intel->nr_heaps = 1;
intel->texture_heaps[0] =
driCreateTextureHeap( 0, intel,
intel->intelScreen->tex.size,
12,
I830_NR_TEX_REGIONS,
intel->sarea->texList,
(unsigned *) & intel->sarea->texAge,
& intel->swapped,
sizeof( struct i915_texture_object ),
(destroy_texture_object_t *)intelDestroyTexObj );
/* FIXME: driCalculateMaxTextureLevels assumes that mipmaps are
* tightly packed, but they're not in Intel graphics
* hardware.
*/
ctx->Const.MaxTextureUnits = I915_TEX_UNITS;
i = driQueryOptioni( &intel->optionCache, "allow_large_textures");
driCalculateMaxTextureLevels( intel->texture_heaps,
intel->nr_heaps,
&intel->ctx.Const,
4,
11, /* max 2D texture size is 2048x2048 */
8, /* 3D texture */
11, /* cube texture. */
11, /* rect texture */
12,
GL_FALSE,
i );
/* GL_ARB_fragment_program limits - don't think Mesa actually
* validates programs against these, and in any case one ARB
* instruction can translate to more than one HW instruction, so
* we'll still have to check and fallback each time.
*/
ctx->Const.FragmentProgram.MaxNativeTemps = I915_MAX_TEMPORARY;
ctx->Const.FragmentProgram.MaxNativeAttribs = 11; /* 8 tex, 2 color, fog */
ctx->Const.FragmentProgram.MaxNativeParameters = I915_MAX_CONSTANT;
ctx->Const.FragmentProgram.MaxNativeAluInstructions = I915_MAX_ALU_INSN;
ctx->Const.FragmentProgram.MaxNativeTexInstructions = I915_MAX_TEX_INSN;
ctx->Const.FragmentProgram.MaxNativeInstructions = (I915_MAX_ALU_INSN +
I915_MAX_TEX_INSN);
ctx->Const.FragmentProgram.MaxNativeTexIndirections = I915_MAX_TEX_INDIRECT;
ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0; /* I don't think we have one */
ctx->_MaintainTexEnvProgram = GL_TRUE;
driInitExtensions( ctx, i915_extensions, GL_FALSE );
_tnl_init_vertices( ctx, ctx->Const.MaxArrayLockSize + 12,
36 * sizeof(GLfloat) );
intel->verts = TNL_CONTEXT(ctx)->clipspace.vertex_buf;
i915InitState( i915 );
return GL_TRUE;
}
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