src/gallium/drivers/llvmpipe/lp_jit.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
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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
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  25  *
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  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 #include "pipe/p_state.h"
  42
  43
  44 struct tgsi_sampler;
  45 struct llvmpipe_screen;
  46
  47
  48 struct lp_jit_texture
  49 {
  50    uint32_t width;
  51    uint32_t height;
  52    uint32_t stride;
  53    const void *data;
  54 };
  55
  56
  57 enum {
  58    LP_JIT_TEXTURE_WIDTH = 0,
  59    LP_JIT_TEXTURE_HEIGHT,
  60    LP_JIT_TEXTURE_STRIDE,
  61    LP_JIT_TEXTURE_DATA
  62 };
  63
  64
  65
  66 /**
  67  * This structure is passed directly to the generated fragment shader.
  68  *
  69  * It contains the derived state.
  70  *
  71  * Changes here must be reflected in the lp_jit_context_* macros and
  72  * lp_jit_init_types function. Changes to the ordering should be avoided.
  73  *
  74  * Only use types with a clear size and padding here, in particular prefer the
  75  * stdint.h types to the basic integer types.
  76  */
  77 struct lp_jit_context
  78 {
  79    const float *constants;
  80
  81    struct tgsi_sampler **samplers;
  82
  83    float alpha_ref_value;
  84
  85    /* FIXME: store (also?) in floats */
  86    uint8_t *blend_color;
  87
  88    struct lp_jit_texture textures[PIPE_MAX_SAMPLERS];
  89 };
  90
  91
  92 #define lp_jit_context_constants(_builder, _ptr) \
  93    lp_build_struct_get(_builder, _ptr, 0, "constants")
  94
  95 #define lp_jit_context_samplers(_builder, _ptr) \
  96    lp_build_struct_get(_builder, _ptr, 1, "samplers")
  97
  98 #define lp_jit_context_alpha_ref_value(_builder, _ptr) \
  99    lp_build_struct_get(_builder, _ptr, 2, "alpha_ref_value")
 100
 101 #define lp_jit_context_blend_color(_builder, _ptr) \
 102    lp_build_struct_get(_builder, _ptr, 3, "blend_color")
 103
 104 #define LP_JIT_CONTEXT_TEXTURES_INDEX 4
 105
 106 #define lp_jit_context_textures(_builder, _ptr) \
 107    lp_build_struct_get_ptr(_builder, _ptr, LP_JIT_CONTEXT_TEXTURES_INDEX, "textures")
 108
 109
 110 typedef void
 111 (*lp_jit_frag_func)(struct lp_jit_context *context,
 112                     uint32_t x,
 113                     uint32_t y,
 114                     const void *a0,
 115                     const void *dadx,
 116                     const void *dady,
 117                     uint32_t *mask,
 118                     void *color,
 119                     void *depth);
 120
 121 void PIPE_CDECL
 122 lp_fetch_texel_soa( struct tgsi_sampler **samplers,
 123                     uint32_t unit,
 124                     float *store );
 125
 126
 127 void
 128 lp_jit_screen_cleanup(struct llvmpipe_screen *screen);
 129
 130
 131 void
 132 lp_jit_screen_init(struct llvmpipe_screen *screen);
 133
 134
 135 #endif /* LP_JIT_H */