src/gallium/drivers/llvmpipe/lp_state_fs.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2010 VMware, Inc.
   4  * All Rights Reserved.
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   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
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  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
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  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
  38
  39 struct tgsi_token;
  40 struct lp_fragment_shader;
  41
  42
  43 /** Indexes into jit_function[] array */
  44 #define RAST_WHOLE 0
  45 #define RAST_EDGE_TEST 1
  46
  47
  48 struct lp_fragment_shader_variant_key
  49 {
  50    struct pipe_depth_state depth;
  51    struct pipe_stencil_state stencil[2];
  52    struct pipe_blend_state blend;
  53
  54    struct {
  55       unsigned enabled:1;
  56       unsigned func:3;
  57    } alpha;
  58
  59    unsigned nr_cbufs:8;
  60    unsigned nr_samplers:8;      /* actually derivable from just the shader */
  61    unsigned flatshade:1;
  62    unsigned occlusion_count:1;
  63
  64    enum pipe_format zsbuf_format;
  65    enum pipe_format cbuf_format[PIPE_MAX_COLOR_BUFS];
  66
  67    struct lp_sampler_static_state sampler[PIPE_MAX_SAMPLERS];
  68 };
  69
  70 struct lp_fs_variant_list_item
  71 {
  72    struct lp_fragment_shader_variant *base;
  73    struct lp_fs_variant_list_item *next, *prev;
  74 };
  75
  76 struct lp_fragment_shader_variant
  77 {
  78    struct lp_fragment_shader_variant_key key;
  79
  80    boolean opaque;
  81
  82    LLVMValueRef function[2];
  83
  84    lp_jit_frag_func jit_function[2];
  85
  86    struct lp_fs_variant_list_item list_item_global, list_item_local;
  87    struct lp_fragment_shader *shader;
  88
  89    /* For debugging/profiling purposes */
  90    unsigned no;
  91 };
  92
  93
  94 /** Subclass of pipe_shader_state */
  95 struct lp_fragment_shader
  96 {
  97    struct pipe_shader_state base;
  98
  99    struct tgsi_shader_info info;
 100
 101    struct lp_fs_variant_list_item variants;
 102
 103    struct draw_fragment_shader *draw_data;
 104
 105    /* For debugging/profiling purposes */
 106    unsigned variant_key_size;
 107    unsigned no;
 108    unsigned variants_created;
 109    unsigned variants_cached;
 110 };
 111
 112
 113 void
 114 lp_debug_fs_variant(const struct lp_fragment_shader_variant *variant);
 115
 116
 117 #endif /* LP_STATE_FS_H_ */