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  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.    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 state[PIPE_MAX_SHADER_SAMPLER_VIEWS];
  85. };
  86.  
  87.  
  88. /** doubly-linked list item */
  89. struct lp_fs_variant_list_item
  90. {
  91.    struct lp_fragment_shader_variant *base;
  92.    struct lp_fs_variant_list_item *next, *prev;
  93. };
  94.  
  95.  
  96. struct lp_fragment_shader_variant
  97. {
  98.    struct lp_fragment_shader_variant_key key;
  99.  
  100.    boolean opaque;
  101.    uint8_t ps_inv_multiplier;
  102.  
  103.    struct gallivm_state *gallivm;
  104.  
  105.    LLVMTypeRef jit_context_ptr_type;
  106.    LLVMTypeRef jit_thread_data_ptr_type;
  107.    LLVMTypeRef jit_linear_context_ptr_type;
  108.  
  109.    LLVMValueRef function[2];
  110.  
  111.    lp_jit_frag_func jit_function[2];
  112.  
  113.    /* Total number of LLVM instructions generated */
  114.    unsigned nr_instrs;
  115.  
  116.    struct lp_fs_variant_list_item list_item_global, list_item_local;
  117.    struct lp_fragment_shader *shader;
  118.  
  119.    /* For debugging/profiling purposes */
  120.    unsigned no;
  121. };
  122.  
  123.  
  124. /** Subclass of pipe_shader_state */
  125. struct lp_fragment_shader
  126. {
  127.    struct pipe_shader_state base;
  128.  
  129.    struct lp_tgsi_info info;
  130.  
  131.    struct lp_fs_variant_list_item variants;
  132.  
  133.    struct draw_fragment_shader *draw_data;
  134.  
  135.    /* For debugging/profiling purposes */
  136.    unsigned variant_key_size;
  137.    unsigned no;
  138.    unsigned variants_created;
  139.    unsigned variants_cached;
  140.  
  141.    /** Fragment shader input interpolation info */
  142.    struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];
  143. };
  144.  
  145.  
  146. void
  147. lp_debug_fs_variant(const struct lp_fragment_shader_variant *variant);
  148.  
  149. void
  150. llvmpipe_remove_shader_variant(struct llvmpipe_context *lp,
  151.                                struct lp_fragment_shader_variant *variant);
  152.  
  153. boolean
  154. llvmpipe_rasterization_disabled(struct llvmpipe_context *lp);
  155.  
  156.  
  157. #endif /* LP_STATE_FS_H_ */
  158.