src/gallium/drivers/llvmpipe/lp_state_fs.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2010 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
   8  * "Software"), to deal in the Software without restriction, including
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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 SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  **************************************************************************/
  27
  28
  29 #ifndef LP_STATE_FS_H_
  30 #define LP_STATE_FS_H_
  31
  32
  33 #include "pipe/p_compiler.h"
  34 #include "pipe/p_state.h"
  35 #include "tgsi/tgsi_scan.h" /* for tgsi_shader_info */
  36 #include "gallivm/lp_bld_sample.h" /* for struct lp_sampler_static_state */
  37 #include "gallivm/lp_bld_tgsi.h" /* for lp_tgsi_info */
  38 #include "lp_bld_interp.h" /* for struct lp_shader_input */
  39
  40
  41 struct tgsi_token;
  42 struct lp_fragment_shader;
  43
  44
  45 /** Indexes into jit_function[] array */
  46 #define RAST_WHOLE 0
  47 #define RAST_EDGE_TEST 1
  48
  49
  50 struct lp_fragment_shader_variant_key
  51 {
  52    struct pipe_depth_state depth;
  53    struct pipe_stencil_state stencil[2];
  54    struct pipe_blend_state blend;
  55
  56    struct {
  57       unsigned enabled:1;
  58       unsigned func:3;
  59    } alpha;
  60
  61    unsigned nr_cbufs:8;
  62    unsigned nr_samplers:8;      /* actually derivable from just the shader */
  63    unsigned flatshade:1;
  64    unsigned occlusion_count:1;
  65
  66    enum pipe_format zsbuf_format;
  67    enum pipe_format cbuf_format[PIPE_MAX_COLOR_BUFS];
  68
  69    struct lp_sampler_static_state sampler[PIPE_MAX_SAMPLERS];
  70 };
  71
  72 struct lp_fs_variant_list_item
  73 {
  74    struct lp_fragment_shader_variant *base;
  75    struct lp_fs_variant_list_item *next, *prev;
  76 };
  77
  78 struct lp_fragment_shader_variant
  79 {
  80    struct lp_fragment_shader_variant_key key;
  81
  82    boolean opaque;
  83
  84    LLVMValueRef function[2];
  85
  86    lp_jit_frag_func jit_function[2];
  87
  88    struct lp_fs_variant_list_item list_item_global, list_item_local;
  89    struct lp_fragment_shader *shader;
  90
  91    /* For debugging/profiling purposes */
  92    unsigned no;
  93 };
  94
  95
  96 /** Subclass of pipe_shader_state */
  97 struct lp_fragment_shader
  98 {
  99    struct pipe_shader_state base;
 100
 101    struct lp_tgsi_info info;
 102
 103    struct lp_fs_variant_list_item variants;
 104
 105    struct draw_fragment_shader *draw_data;
 106
 107    /* For debugging/profiling purposes */
 108    unsigned variant_key_size;
 109    unsigned no;
 110    unsigned variants_created;
 111    unsigned variants_cached;
 112
 113    /** Fragment shader input interpolation info */
 114    struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];
 115 };
 116
 117
 118 void
 119 lp_debug_fs_variant(const struct lp_fragment_shader_variant *variant);
 120
 121
 122 #endif /* LP_STATE_FS_H_ */