src/gallium/drivers/llvmpipe/lp_jit.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   4  * All Rights Reserved.
   5  *
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   7  * copy of this software and associated documentation files (the
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   9  * without limitation the rights to use, copy, modify, merge, publish,
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  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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  25  *
  26  **************************************************************************/
  27
  28 /**
  29  * @file
  30  * C - JIT interfaces
  31  *
  32  * @author Jose Fonseca <jfonseca@vmware.com>
  33  */
  34
  35 #ifndef LP_JIT_H
  36 #define LP_JIT_H
  37
  38
  39 #include "lp_bld_struct.h"
  40
  41
  42 struct tgsi_sampler;
  43 struct llvmpipe_screen;
  44
  45
  46 /**
  47  * This structure is passed directly to the generated fragment shader.
  48  *
  49  * It contains the derived state.
  50  *
  51  * Changes here must be reflected in the lp_jit_context_* macros and
  52  * lp_jit_init_types function. Changes to the ordering should be avoided.
  53  *
  54  * Only use types with a clear size and padding here, in particular prefer the
  55  * stdint.h types to the basic integer types.
  56  */
  57 struct lp_jit_context
  58 {
  59    const float *constants;
  60
  61    struct tgsi_sampler **samplers;
  62
  63    /* TODO: alpha reference value */
  64    float alpha_ref_value;
  65
  66    /* TODO: blend constant color */
  67    uint8_t *blend_color;
  68 };
  69
  70
  71 #define lp_jit_context_constants(_builder, _ptr) \
  72    lp_build_struct_get(_builder, _ptr, 0, "constants")
  73
  74 #define lp_jit_context_samplers(_builder, _ptr) \
  75    lp_build_struct_get(_builder, _ptr, 1, "samplers")
  76
  77 #define lp_jit_context_alpha_ref_value(_builder, _ptr) \
  78    lp_build_struct_get(_builder, _ptr, 2, "alpha_ref_value")
  79
  80 #define lp_jit_context_blend_color(_builder, _ptr) \
  81    lp_build_struct_get(_builder, _ptr, 3, "blend_color")
  82
  83
  84 typedef void
  85 (*lp_jit_frag_func)(struct lp_jit_context *context,
  86                     uint32_t x,
  87                     uint32_t y,
  88                     const void *a0,
  89                     const void *dadx,
  90                     const void *dady,
  91                     uint32_t *mask,
  92                     void *color,
  93                     void *depth);
  94
  95 void PIPE_CDECL
  96 lp_fetch_texel_soa( struct tgsi_sampler **samplers,
  97                     uint32_t unit,
  98                     float *store );
  99
 100
 101 void
 102 lp_jit_screen_cleanup(struct llvmpipe_screen *screen);
 103
 104
 105 void
 106 lp_jit_screen_init(struct llvmpipe_screen *screen);
 107
 108
 109 #endif /* LP_JIT_H */