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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 "main/imports.h" /* CALLOC */
#include "i915_context.h"
#include "i915_winsys.h"
#include "i915_state.h"
#include "i915_batch.h"
#include "i915_tex_layout.h"
#include "i915_reg.h"
#include "pipe/draw/draw_context.h"
#include "pipe/p_defines.h"
#include "pipe/p_winsys.h"
#include "pipe/p_util.h"
/**
* Return list of supported surface/texture formats.
* If we find texture and drawable support differs, add a selector
* parameter or another function.
*/
static const unsigned *
i915_supported_formats(struct pipe_context *pipe,
// unsigned type,
unsigned *numFormats)
{
#if 0
static const unsigned tex_supported[] = {
PIPE_FORMAT_U_R8_G8_B8_A8,
PIPE_FORMAT_U_A8_R8_G8_B8,
PIPE_FORMAT_U_R5_G6_B5,
PIPE_FORMAT_U_L8,
PIPE_FORMAT_U_A8,
PIPE_FORMAT_U_I8,
PIPE_FORMAT_U_L8_A8,
PIPE_FORMAT_YCBCR,
PIPE_FORMAT_YCBCR_REV,
PIPE_FORMAT_S8_Z24,
};
/* Actually a lot more than this - add later:
*/
static const unsigned render_supported[] = {
PIPE_FORMAT_U_A8_R8_G8_B8,
PIPE_FORMAT_U_R5_G6_B5,
};
/*
*/
static const unsigned z_stencil_supported[] = {
PIPE_FORMAT_U_Z16,
PIPE_FORMAT_U_Z32,
PIPE_FORMAT_S8_Z24,
};
switch (type) {
case PIPE_RENDER_FORMAT:
*numFormats = Elements(render_supported);
return render_supported;
case PIPE_TEX_FORMAT:
*numFormats = Elements(tex_supported);
return render_supported;
case PIPE_Z_STENCIL_FORMAT:
*numFormats = Elements(render_supported);
return render_supported;
default:
*numFormats = 0;
return NULL;
}
#else
static const unsigned render_supported[] = {
PIPE_FORMAT_U_A8_R8_G8_B8,
PIPE_FORMAT_U_R5_G6_B5,
PIPE_FORMAT_S8_Z24,
};
*numFormats = 3;
return render_supported;
#endif
}
/**
* We might want to return max texture levels instead...
*/
static void
i915_max_texture_size(struct pipe_context *pipe, unsigned textureType,
unsigned *maxWidth, unsigned *maxHeight, unsigned *maxDepth)
{
switch (textureType) {
case PIPE_TEXTURE_1D:
*maxWidth = 2048;
break;
case PIPE_TEXTURE_2D:
*maxWidth =
*maxHeight = 2048;
break;
case PIPE_TEXTURE_3D:
*maxWidth =
*maxHeight =
*maxDepth = 256;
break;
case PIPE_TEXTURE_CUBE:
*maxWidth =
*maxHeight = 2048;
break;
default:
assert(0);
}
}
static void i915_destroy( struct pipe_context *pipe )
{
struct i915_context *i915 = i915_context( pipe );
draw_destroy( i915->draw );
free( i915 );
}
static void i915_draw_arrays( struct pipe_context *pipe,
unsigned mode, unsigned start, unsigned count)
{
struct i915_context *i915 = i915_context( pipe );
if (i915->dirty)
i915_update_derived( i915 );
draw_arrays(i915->draw, mode, start, count);
}
struct pipe_context *i915_create( struct pipe_winsys *pipe_winsys,
struct i915_winsys *i915_winsys,
unsigned pci_id )
{
struct i915_context *i915;
unsigned is_i945 = 0;
switch (pci_id) {
case PCI_CHIP_I915_G:
case PCI_CHIP_I915_GM:
break;
case PCI_CHIP_I945_G:
case PCI_CHIP_I945_GM:
case PCI_CHIP_I945_GME:
case PCI_CHIP_G33_G:
case PCI_CHIP_Q33_G:
case PCI_CHIP_Q35_G:
is_i945 = 1;
break;
default:
pipe_winsys->printf(pipe_winsys,
"%s: unknown pci id 0x%x, cannot create context\n",
__FUNCTION__, pci_id);
return NULL;
}
i915 = CALLOC_STRUCT(i915_context);
if (i915 == NULL)
return NULL;
i915->winsys = i915_winsys;
i915->pipe.winsys = pipe_winsys;
i915->pipe.destroy = i915_destroy;
i915->pipe.supported_formats = i915_supported_formats;
i915->pipe.max_texture_size = i915_max_texture_size;
i915->pipe.clear = i915_clear;
i915->pipe.reset_occlusion_counter = NULL; /* no support */
i915->pipe.get_occlusion_counter = NULL;
i915->pipe.draw_arrays = i915_draw_arrays;
/*
* Create drawing context and plug our rendering stage into it.
*/
i915->draw = draw_create();
assert(i915->draw);
draw_set_setup_stage(i915->draw, i915_draw_render_stage(i915));
i915_init_region_functions(i915);
i915_init_surface_functions(i915);
i915_init_state_functions(i915);
i915_init_flush_functions(i915);
i915_init_string_functions(i915);
i915->pci_id = pci_id;
i915->flags.is_i945 = is_i945;
if (i915->flags.is_i945)
i915->pipe.mipmap_tree_layout = i945_miptree_layout;
else
i915->pipe.mipmap_tree_layout = i945_miptree_layout;
i915->dirty = ~0;
i915->hardware_dirty = ~0;
/* Batch stream debugging is a bit hacked up at the moment:
*/
i915->batch_start = BEGIN_BATCH(0, 0);
/*
* XXX we could plug GL selection/feedback into the drawing pipeline
* by specifying a different setup/render stage.
*/
return &i915->pipe;
}
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