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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_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    struct gallivm_state *gallivm;
     88 
     89    LLVMTypeRef jit_context_ptr_type;
     90    LLVMTypeRef jit_thread_data_ptr_type;
     91    LLVMTypeRef jit_linear_context_ptr_type;
     92 
     93    LLVMValueRef function[2];
     94 
     95    lp_jit_frag_func jit_function[2];
     96 
     97    /* Total number of LLVM instructions generated */
     98    unsigned nr_instrs;
     99 
    100    struct lp_fs_variant_list_item list_item_global, list_item_local;
    101    struct lp_fragment_shader *shader;
    102 
    103    /* For debugging/profiling purposes */
    104    unsigned no;
    105 };
    106 
    107 
    108 /** Subclass of pipe_shader_state */
    109 struct lp_fragment_shader
    110 {
    111    struct pipe_shader_state base;
    112 
    113    struct lp_tgsi_info info;
    114 
    115    struct lp_fs_variant_list_item variants;
    116 
    117    struct draw_fragment_shader *draw_data;
    118 
    119    /* For debugging/profiling purposes */
    120    unsigned variant_key_size;
    121    unsigned no;
    122    unsigned variants_created;
    123    unsigned variants_cached;
    124 
    125    /** Fragment shader input interpolation info */
    126    struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];
    127 };
    128 
    129 
    130 void
    131 lp_debug_fs_variant(const struct lp_fragment_shader_variant *variant);
    132 
    133 void
    134 llvmpipe_remove_shader_variant(struct llvmpipe_context *lp,
    135                                struct lp_fragment_shader_variant *variant);
    136 
    137 
    138 #endif /* LP_STATE_FS_H_ */
    139