src/gallium/drivers/llvmpipe/lp_jit.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   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 /**
  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 "gallivm/lp_bld_struct.h"
  40
  41 #include "pipe/p_state.h"
  42
  43
  44 struct llvmpipe_screen;
  45
  46
  47 struct lp_jit_texture
  48 {
  49    uint32_t width;
  50    uint32_t height;
  51    uint32_t depth;
  52    uint32_t last_level;
  53    uint32_t stride;
  54    const void *data;
  55 };
  56
  57
  58 enum {
  59    LP_JIT_TEXTURE_WIDTH = 0,
  60    LP_JIT_TEXTURE_HEIGHT,
  61    LP_JIT_TEXTURE_DEPTH,
  62    LP_JIT_TEXTURE_LAST_LEVEL,
  63    LP_JIT_TEXTURE_STRIDE,
  64    LP_JIT_TEXTURE_DATA
  65 };
  66
  67
  68
  69 /**
  70  * This structure is passed directly to the generated fragment shader.
  71  *
  72  * It contains the derived state.
  73  *
  74  * Changes here must be reflected in the lp_jit_context_* macros and
  75  * lp_jit_init_types function. Changes to the ordering should be avoided.
  76  *
  77  * Only use types with a clear size and padding here, in particular prefer the
  78  * stdint.h types to the basic integer types.
  79  */
  80 struct lp_jit_context
  81 {
  82    const float *constants;
  83
  84    float alpha_ref_value;
  85
  86    /** floats, not ints */
  87    float scissor_xmin, scissor_ymin, scissor_xmax, scissor_ymax;
  88
  89    /* FIXME: store (also?) in floats */
  90    uint8_t *blend_color;
  91
  92    struct lp_jit_texture textures[PIPE_MAX_SAMPLERS];
  93 };
  94
  95
  96 #define lp_jit_context_constants(_builder, _ptr) \
  97    lp_build_struct_get(_builder, _ptr, 0, "constants")
  98
  99 #define lp_jit_context_alpha_ref_value(_builder, _ptr) \
 100    lp_build_struct_get(_builder, _ptr, 1, "alpha_ref_value")
 101
 102 #define lp_jit_context_scissor_xmin_value(_builder, _ptr) \
 103    lp_build_struct_get(_builder, _ptr, 2, "scissor_xmin")
 104
 105 #define lp_jit_context_scissor_ymin_value(_builder, _ptr) \
 106    lp_build_struct_get(_builder, _ptr, 3, "scissor_ymin")
 107
 108 #define lp_jit_context_scissor_xmax_value(_builder, _ptr) \
 109    lp_build_struct_get(_builder, _ptr, 4, "scissor_xmax")
 110
 111 #define lp_jit_context_scissor_ymax_value(_builder, _ptr) \
 112    lp_build_struct_get(_builder, _ptr, 5, "scissor_ymax")
 113
 114 #define lp_jit_context_blend_color(_builder, _ptr) \
 115    lp_build_struct_get(_builder, _ptr, 6, "blend_color")
 116
 117 #define LP_JIT_CONTEXT_TEXTURES_INDEX 7
 118
 119 #define lp_jit_context_textures(_builder, _ptr) \
 120    lp_build_struct_get_ptr(_builder, _ptr, LP_JIT_CONTEXT_TEXTURES_INDEX, "textures")
 121
 122
 123 typedef void
 124 (*lp_jit_frag_func)(const struct lp_jit_context *context,
 125                     uint32_t x,
 126                     uint32_t y,
 127                     const void *a0,
 128                     const void *dadx,
 129                     const void *dady,
 130                     uint8_t **color,
 131                     void *depth,
 132                     const int32_t c1,
 133                     const int32_t c2,
 134                     const int32_t c3,
 135                     const int32_t *step1,
 136                     const int32_t *step2,
 137                     const int32_t *step3);
 138
 139
 140 void
 141 lp_jit_screen_cleanup(struct llvmpipe_screen *screen);
 142
 143
 144 void
 145 lp_jit_screen_init(struct llvmpipe_screen *screen);
 146
 147
 148 #endif /* LP_JIT_H */