src/gallium/drivers/softpipe/sp_tex_sample.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
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  11  * permit persons to whom the Software is furnished to do so, subject to
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  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
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  27
  28 #ifndef SP_TEX_SAMPLE_H
  29 #define SP_TEX_SAMPLE_H
  30
  31
  32 #include "tgsi/tgsi_exec.h"
  33
  34
  35 /**
  36  * Subclass of tgsi_sampler
  37  */
  38 struct sp_shader_sampler
  39 {
  40    struct tgsi_sampler base;  /**< base class */
  41
  42    uint unit;
  43    struct softpipe_context *sp;
  44    struct softpipe_tile_cache *cache;
  45 };
  46
  47
  48
  49 static INLINE const struct sp_shader_sampler *
  50 sp_shader_sampler(const struct tgsi_sampler *sampler)
  51 {
  52    return (const struct sp_shader_sampler *) sampler;
  53 }
  54
  55
  56 extern void
  57 sp_get_samples(struct tgsi_sampler *sampler,
  58                const float s[QUAD_SIZE],
  59                const float t[QUAD_SIZE],
  60                const float p[QUAD_SIZE],
  61                float lodbias,
  62                float rgba[NUM_CHANNELS][QUAD_SIZE]);
  63
  64
  65 #endif /* SP_TEX_SAMPLE_H */