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/**************************************************************************
*
* Copyright 2008 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.
*
**************************************************************************/
#ifndef I915_RESOURCE_H
#define I915_RESOURCE_H
struct i915_screen;
#include "util/u_transfer.h"
#include "util/u_debug.h"
#include "i915_winsys.h"
struct i915_context;
struct i915_screen;
struct i915_buffer {
struct u_resource b;
uint8_t *data;
boolean free_on_destroy;
};
#define I915_MAX_TEXTURE_2D_LEVELS 12 /* max 2048x2048 */
#define I915_MAX_TEXTURE_3D_LEVELS 9 /* max 256x256x256 */
struct offset_pair {
unsigned short nblocksx;
unsigned short nblocksy;
};
struct i915_texture {
struct u_resource b;
/* tiling flags */
enum i915_winsys_buffer_tile tiling;
unsigned stride;
unsigned depth_stride; /* per-image on i945? */
unsigned total_nblocksy;
unsigned nr_images[I915_MAX_TEXTURE_2D_LEVELS];
/* Explicitly store the offset of each image for each cube face or
* depth value.
*
* Array [depth] off offsets.
*/
struct offset_pair *image_offset[I915_MAX_TEXTURE_2D_LEVELS];
/* The data is held here:
*/
struct i915_winsys_buffer *buffer;
};
unsigned i915_texture_offset(struct i915_texture *tex,
unsigned level, unsigned layer);
void i915_init_screen_resource_functions(struct i915_screen *is);
void i915_init_resource_functions(struct i915_context *i915);
extern struct u_resource_vtbl i915_buffer_vtbl;
extern struct u_resource_vtbl i915_texture_vtbl;
static INLINE struct i915_texture *i915_texture(struct pipe_resource *resource)
{
struct i915_texture *tex = (struct i915_texture *)resource;
assert(tex->b.vtbl == &i915_texture_vtbl);
return tex;
}
static INLINE struct i915_buffer *i915_buffer(struct pipe_resource *resource)
{
struct i915_buffer *tex = (struct i915_buffer *)resource;
assert(tex->b.vtbl == &i915_buffer_vtbl);
return tex;
}
struct pipe_resource *
i915_texture_create(struct pipe_screen *screen,
const struct pipe_resource *template);
struct pipe_resource *
i915_texture_from_handle(struct pipe_screen * screen,
const struct pipe_resource *template,
struct winsys_handle *whandle);
struct pipe_resource *
i915_user_buffer_create(struct pipe_screen *screen,
void *ptr,
unsigned bytes,
unsigned usage);
struct pipe_resource *
i915_buffer_create(struct pipe_screen *screen,
const struct pipe_resource *template);
#endif /* I915_RESOURCE_H */
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