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
41struct tgsi_token;
42struct lp_fragment_shader;
43
44
45/** Indexes into jit_function[] array */
46#define RAST_WHOLE 0
47#define RAST_EDGE_TEST 1
48
49
50struct 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 */
74struct 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
81struct 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 */
109struct 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
130void
131lp_debug_fs_variant(const struct lp_fragment_shader_variant *variant);
132
133void
134llvmpipe_remove_shader_variant(struct llvmpipe_context *lp,
135                               struct lp_fragment_shader_variant *variant);
136
137
138#endif /* LP_STATE_FS_H_ */
139