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/**************************************************************************
*
* Copyright 2007 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 LP_TEX_SAMPLE_H
#define LP_TEX_SAMPLE_H
#include "tgsi/tgsi_exec.h"
struct llvmpipe_tex_tile_cache;
/**
* Subclass of tgsi_sampler
*/
struct lp_shader_sampler
{
struct tgsi_sampler base; /**< base class */
unsigned processor;
/* For lp_get_samples_2d_linear_POT:
*/
unsigned xpot;
unsigned ypot;
unsigned level;
const struct pipe_texture *texture;
const struct pipe_sampler_state *sampler;
struct llvmpipe_tex_tile_cache *cache;
};
static INLINE struct lp_shader_sampler *
lp_shader_sampler(const struct tgsi_sampler *sampler)
{
return (struct lp_shader_sampler *) sampler;
}
extern void
lp_get_samples(struct tgsi_sampler *tgsi_sampler,
const float s[QUAD_SIZE],
const float t[QUAD_SIZE],
const float p[QUAD_SIZE],
float lodbias,
float rgba[NUM_CHANNELS][QUAD_SIZE]);
#endif /* LP_TEX_SAMPLE_H */
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