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
   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 SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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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
  73 /** doubly-linked list item */
  74 struct lp_fs_variant_list_item
  75 {
  76    struct lp_fragment_shader_variant *base;
  77    struct lp_fs_variant_list_item *next, *prev;
  78 };
  79
  80
  81 struct lp_fragment_shader_variant
  82 {
  83    struct lp_fragment_shader_variant_key key;
  84
  85    boolean opaque;
  86
  87    LLVMValueRef function[2];
  88
  89    lp_jit_frag_func jit_function[2];
  90
  91    struct lp_fs_variant_list_item list_item_global, list_item_local;
  92    struct lp_fragment_shader *shader;
  93
  94    /* For debugging/profiling purposes */
  95    unsigned no;
  96 };
  97
  98
  99 /** Subclass of pipe_shader_state */
 100 struct lp_fragment_shader
 101 {
 102    struct pipe_shader_state base;
 103
 104    struct lp_tgsi_info info;
 105
 106    struct lp_fs_variant_list_item variants;
 107
 108    struct draw_fragment_shader *draw_data;
 109
 110    /* For debugging/profiling purposes */
 111    unsigned variant_key_size;
 112    unsigned no;
 113    unsigned variants_created;
 114    unsigned variants_cached;
 115
 116    /** Fragment shader input interpolation info */
 117    struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];
 118 };
 119
 120
 121 void
 122 lp_debug_fs_variant(const struct lp_fragment_shader_variant *variant);
 123
 124 void
 125 llvmpipe_remove_shader_variant(struct llvmpipe_context *lp,
 126                                struct lp_fragment_shader_variant *variant);
 127
 128
 129 #endif /* LP_STATE_FS_H_ */