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,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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  19  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  20  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  21  *
  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_sampler_static_state
  51 {
  52    /*
  53     * These attributes are effectively interleaved for more sane key handling.
  54     * However, there might be lots of null space if the amount of samplers and
  55     * textures isn't the same.
  56     */
  57    struct lp_static_sampler_state sampler_state;
  58    struct lp_static_texture_state texture_state;
  59 };
  60
  61
  62 struct lp_fragment_shader_variant_key
  63 {
  64    struct pipe_depth_state depth;
  65    struct pipe_stencil_state stencil[2];
  66    struct pipe_blend_state blend;
  67
  68    struct {
  69       unsigned enabled:1;
  70       unsigned func:3;
  71    } alpha;
  72
  73    unsigned nr_cbufs:8;
  74    unsigned nr_samplers:8;      /* actually derivable from just the shader */
  75    unsigned nr_sampler_views:8; /* actually derivable from just the shader */
  76    unsigned flatshade:1;
  77    unsigned occlusion_count:1;
  78    unsigned resource_1d:1;
  79    unsigned depth_clamp:1;
  80
  81    enum pipe_format zsbuf_format;
  82    enum pipe_format cbuf_format[PIPE_MAX_COLOR_BUFS];
  83
  84    struct lp_sampler_static_state samplers[1];
  85 };
  86
  87 #define LP_FS_MAX_VARIANT_KEY_SIZE                                      \
  88    (sizeof(struct lp_fragment_shader_variant_key) +                     \
  89     PIPE_MAX_SHADER_SAMPLER_VIEWS * sizeof(struct lp_sampler_static_state))
  90
  91 static inline size_t
  92 lp_fs_variant_key_size(unsigned nr_samplers)
  93 {
  94    unsigned samplers = nr_samplers > 1 ? (nr_samplers - 1) : 0;
  95    return (sizeof(struct lp_fragment_shader_variant_key) +
  96            samplers * sizeof(struct lp_sampler_static_state));
  97 }
  98
  99 /** doubly-linked list item */
 100 struct lp_fs_variant_list_item
 101 {
 102    struct lp_fragment_shader_variant *base;
 103    struct lp_fs_variant_list_item *next, *prev;
 104 };
 105
 106
 107 struct lp_fragment_shader_variant
 108 {
 109
 110    boolean opaque;
 111
 112    struct gallivm_state *gallivm;
 113
 114    LLVMTypeRef jit_context_ptr_type;
 115    LLVMTypeRef jit_thread_data_ptr_type;
 116    LLVMTypeRef jit_linear_context_ptr_type;
 117
 118    LLVMValueRef function[2];
 119
 120    lp_jit_frag_func jit_function[2];
 121
 122    /* Total number of LLVM instructions generated */
 123    unsigned nr_instrs;
 124
 125    struct lp_fs_variant_list_item list_item_global, list_item_local;
 126    struct lp_fragment_shader *shader;
 127
 128    /* For debugging/profiling purposes */
 129    unsigned no;
 130
 131    /* key is variable-sized, must be last */
 132    struct lp_fragment_shader_variant_key key;
 133 };
 134
 135
 136 /** Subclass of pipe_shader_state */
 137 struct lp_fragment_shader
 138 {
 139    struct pipe_shader_state base;
 140
 141    struct lp_tgsi_info info;
 142
 143    struct lp_fs_variant_list_item variants;
 144
 145    struct draw_fragment_shader *draw_data;
 146
 147    /* For debugging/profiling purposes */
 148    unsigned variant_key_size;
 149    unsigned no;
 150    unsigned variants_created;
 151    unsigned variants_cached;
 152
 153    /** Fragment shader input interpolation info */
 154    struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];
 155 };
 156
 157
 158 void
 159 lp_debug_fs_variant(struct lp_fragment_shader_variant *variant);
 160
 161 #endif /* LP_STATE_FS_H_ */