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,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  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
  17  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  18  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  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
  80    enum pipe_format zsbuf_format;
  81    enum pipe_format cbuf_format[PIPE_MAX_COLOR_BUFS];
  82
  83    struct lp_sampler_static_state state[PIPE_MAX_SHADER_SAMPLER_VIEWS];
  84 };
  85
  86
  87 /** doubly-linked list item */
  88 struct lp_fs_variant_list_item
  89 {
  90    struct lp_fragment_shader_variant *base;
  91    struct lp_fs_variant_list_item *next, *prev;
  92 };
  93
  94
  95 struct lp_fragment_shader_variant
  96 {
  97    struct lp_fragment_shader_variant_key key;
  98
  99    boolean opaque;
 100    uint8_t ps_inv_multiplier;
 101
 102    struct gallivm_state *gallivm;
 103
 104    LLVMTypeRef jit_context_ptr_type;
 105    LLVMTypeRef jit_thread_data_ptr_type;
 106    LLVMTypeRef jit_linear_context_ptr_type;
 107
 108    LLVMValueRef function[2];
 109
 110    lp_jit_frag_func jit_function[2];
 111
 112    /* Total number of LLVM instructions generated */
 113    unsigned nr_instrs;
 114
 115    struct lp_fs_variant_list_item list_item_global, list_item_local;
 116    struct lp_fragment_shader *shader;
 117
 118    /* For debugging/profiling purposes */
 119    unsigned no;
 120 };
 121
 122
 123 /** Subclass of pipe_shader_state */
 124 struct lp_fragment_shader
 125 {
 126    struct pipe_shader_state base;
 127
 128    struct lp_tgsi_info info;
 129
 130    struct lp_fs_variant_list_item variants;
 131
 132    struct draw_fragment_shader *draw_data;
 133
 134    /* For debugging/profiling purposes */
 135    unsigned variant_key_size;
 136    unsigned no;
 137    unsigned variants_created;
 138    unsigned variants_cached;
 139
 140    /** Fragment shader input interpolation info */
 141    struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];
 142 };
 143
 144
 145 void
 146 lp_debug_fs_variant(const struct lp_fragment_shader_variant *variant);
 147
 148 void
 149 llvmpipe_remove_shader_variant(struct llvmpipe_context *lp,
 150                                struct lp_fragment_shader_variant *variant);
 151
 152 boolean
 153 llvmpipe_rasterization_disabled(struct llvmpipe_context *lp);
 154
 155
 156 #endif /* LP_STATE_FS_H_ */