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
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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 "gallivm/lp_bld_struct.h"
  40
  41 #include "pipe/p_state.h"
  42 #include "lp_texture.h"
  43
  44
  45 struct llvmpipe_screen;
  46
  47
  48 struct lp_jit_texture
  49 {
  50    uint32_t width;
  51    uint32_t height;
  52    uint32_t depth;
  53    uint32_t last_level;
  54    uint32_t row_stride[LP_MAX_TEXTURE_2D_LEVELS];
  55    const void *data[LP_MAX_TEXTURE_2D_LEVELS];
  56 };
  57
  58
  59 enum {
  60    LP_JIT_TEXTURE_WIDTH = 0,
  61    LP_JIT_TEXTURE_HEIGHT,
  62    LP_JIT_TEXTURE_DEPTH,
  63    LP_JIT_TEXTURE_LAST_LEVEL,
  64    LP_JIT_TEXTURE_ROW_STRIDE,
  65    LP_JIT_TEXTURE_DATA
  66 };
  67
  68
  69
  70 /**
  71  * This structure is passed directly to the generated fragment shader.
  72  *
  73  * It contains the derived state.
  74  *
  75  * Changes here must be reflected in the lp_jit_context_* macros and
  76  * lp_jit_init_types function. Changes to the ordering should be avoided.
  77  *
  78  * Only use types with a clear size and padding here, in particular prefer the
  79  * stdint.h types to the basic integer types.
  80  */
  81 struct lp_jit_context
  82 {
  83    const float *constants;
  84
  85    float alpha_ref_value;
  86
  87    /** floats, not ints */
  88    float scissor_xmin, scissor_ymin, scissor_xmax, scissor_ymax;
  89
  90    /* FIXME: store (also?) in floats */
  91    uint8_t *blend_color;
  92
  93    struct lp_jit_texture textures[PIPE_MAX_SAMPLERS];
  94 };
  95
  96
  97 #define lp_jit_context_constants(_builder, _ptr) \
  98    lp_build_struct_get(_builder, _ptr, 0, "constants")
  99
 100 #define lp_jit_context_alpha_ref_value(_builder, _ptr) \
 101    lp_build_struct_get(_builder, _ptr, 1, "alpha_ref_value")
 102
 103 #define lp_jit_context_scissor_xmin_value(_builder, _ptr) \
 104    lp_build_struct_get(_builder, _ptr, 2, "scissor_xmin")
 105
 106 #define lp_jit_context_scissor_ymin_value(_builder, _ptr) \
 107    lp_build_struct_get(_builder, _ptr, 3, "scissor_ymin")
 108
 109 #define lp_jit_context_scissor_xmax_value(_builder, _ptr) \
 110    lp_build_struct_get(_builder, _ptr, 4, "scissor_xmax")
 111
 112 #define lp_jit_context_scissor_ymax_value(_builder, _ptr) \
 113    lp_build_struct_get(_builder, _ptr, 5, "scissor_ymax")
 114
 115 #define lp_jit_context_blend_color(_builder, _ptr) \
 116    lp_build_struct_get(_builder, _ptr, 6, "blend_color")
 117
 118 #define LP_JIT_CONTEXT_TEXTURES_INDEX 7
 119
 120 #define lp_jit_context_textures(_builder, _ptr) \
 121    lp_build_struct_get_ptr(_builder, _ptr, LP_JIT_CONTEXT_TEXTURES_INDEX, "textures")
 122
 123
 124 typedef void
 125 (*lp_jit_frag_func)(const struct lp_jit_context *context,
 126                     uint32_t x,
 127                     uint32_t y,
 128                     const void *a0,
 129                     const void *dadx,
 130                     const void *dady,
 131                     uint8_t **color,
 132                     void *depth,
 133                     const int32_t c1,
 134                     const int32_t c2,
 135                     const int32_t c3,
 136                     const int32_t *step1,
 137                     const int32_t *step2,
 138                     const int32_t *step3);
 139
 140
 141 void
 142 lp_jit_screen_cleanup(struct llvmpipe_screen *screen);
 143
 144
 145 void
 146 lp_jit_screen_init(struct llvmpipe_screen *screen);
 147
 148
 149 #endif /* LP_JIT_H */