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 #include "util/u_inlines.h"
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_image_static_state
63 {
64 struct lp_static_texture_state image_state;
65 };
66
67 struct lp_fragment_shader_variant_key
68 {
69 struct pipe_depth_state depth;
70 struct pipe_stencil_state stencil[2];
71 struct pipe_blend_state blend;
72
73 struct {
74 unsigned enabled:1;
75 unsigned func:3;
76 } alpha;
77
78 unsigned nr_cbufs:8;
79 unsigned nr_samplers:8; /* actually derivable from just the shader */
80 unsigned nr_sampler_views:8; /* actually derivable from just the shader */
81 unsigned nr_images:8; /* actually derivable from just the shader */
82 unsigned flatshade:1;
83 unsigned occlusion_count:1;
84 unsigned resource_1d:1;
85 unsigned depth_clamp:1;
86 unsigned multisample:1;
87 unsigned no_ms_sample_mask_out:1;
88
89 enum pipe_format zsbuf_format;
90 enum pipe_format cbuf_format[PIPE_MAX_COLOR_BUFS];
91
92 uint8_t cbuf_nr_samples[PIPE_MAX_COLOR_BUFS];
93 uint8_t zsbuf_nr_samples;
94 uint8_t coverage_samples;
95 uint8_t min_samples;
96
97 struct lp_sampler_static_state samplers[1];
98 /* followed by variable number of images */
99 };
100
101 #define LP_FS_MAX_VARIANT_KEY_SIZE \
102 (sizeof(struct lp_fragment_shader_variant_key) + \
103 PIPE_MAX_SHADER_SAMPLER_VIEWS * sizeof(struct lp_sampler_static_state) +\
104 PIPE_MAX_SHADER_IMAGES * sizeof(struct lp_image_static_state))
105
106 static inline size_t
lp_fs_variant_key_size(unsigned nr_samplers,unsigned nr_images)107 lp_fs_variant_key_size(unsigned nr_samplers, unsigned nr_images)
108 {
109 unsigned samplers = nr_samplers > 1 ? (nr_samplers - 1) : 0;
110 return (sizeof(struct lp_fragment_shader_variant_key) +
111 samplers * sizeof(struct lp_sampler_static_state) +
112 nr_images * sizeof(struct lp_image_static_state));
113 }
114
115 static inline struct lp_image_static_state *
lp_fs_variant_key_images(struct lp_fragment_shader_variant_key * key)116 lp_fs_variant_key_images(struct lp_fragment_shader_variant_key *key)
117 {
118 return (struct lp_image_static_state *)
119 &key->samplers[key->nr_samplers];
120 }
121
122 /** doubly-linked list item */
123 struct lp_fs_variant_list_item
124 {
125 struct lp_fragment_shader_variant *base;
126 struct lp_fs_variant_list_item *next, *prev;
127 };
128
129
130 struct lp_fragment_shader_variant
131 {
132 struct pipe_reference reference;
133 boolean opaque;
134
135 struct gallivm_state *gallivm;
136
137 LLVMTypeRef jit_context_ptr_type;
138 LLVMTypeRef jit_thread_data_ptr_type;
139 LLVMTypeRef jit_linear_context_ptr_type;
140
141 LLVMValueRef function[2];
142
143 lp_jit_frag_func jit_function[2];
144
145 /* Total number of LLVM instructions generated */
146 unsigned nr_instrs;
147
148 struct lp_fs_variant_list_item list_item_global, list_item_local;
149 struct lp_fragment_shader *shader;
150
151 /* For debugging/profiling purposes */
152 unsigned no;
153
154 /* key is variable-sized, must be last */
155 struct lp_fragment_shader_variant_key key;
156 };
157
158
159 /** Subclass of pipe_shader_state */
160 struct lp_fragment_shader
161 {
162 struct pipe_shader_state base;
163
164 struct pipe_reference reference;
165 struct lp_tgsi_info info;
166
167 struct lp_fs_variant_list_item variants;
168
169 struct draw_fragment_shader *draw_data;
170
171 /* For debugging/profiling purposes */
172 unsigned variant_key_size;
173 unsigned no;
174 unsigned variants_created;
175 unsigned variants_cached;
176
177 /** Fragment shader input interpolation info */
178 struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];
179 };
180
181
182 void
183 lp_debug_fs_variant(struct lp_fragment_shader_variant *variant);
184
185 void
186 llvmpipe_destroy_fs(struct llvmpipe_context *llvmpipe,
187 struct lp_fragment_shader *shader);
188
189 static inline void
lp_fs_reference(struct llvmpipe_context * llvmpipe,struct lp_fragment_shader ** ptr,struct lp_fragment_shader * shader)190 lp_fs_reference(struct llvmpipe_context *llvmpipe,
191 struct lp_fragment_shader **ptr,
192 struct lp_fragment_shader *shader)
193 {
194 struct lp_fragment_shader *old_ptr = *ptr;
195 if (pipe_reference(old_ptr ? &(*ptr)->reference : NULL, shader ? &shader->reference : NULL)) {
196 llvmpipe_destroy_fs(llvmpipe, old_ptr);
197 }
198 *ptr = shader;
199 }
200
201 void
202 llvmpipe_destroy_shader_variant(struct llvmpipe_context *lp,
203 struct lp_fragment_shader_variant *variant);
204
205 static inline void
lp_fs_variant_reference(struct llvmpipe_context * llvmpipe,struct lp_fragment_shader_variant ** ptr,struct lp_fragment_shader_variant * variant)206 lp_fs_variant_reference(struct llvmpipe_context *llvmpipe,
207 struct lp_fragment_shader_variant **ptr,
208 struct lp_fragment_shader_variant *variant)
209 {
210 struct lp_fragment_shader_variant *old_ptr = *ptr;
211 if (pipe_reference(old_ptr ? &(*ptr)->reference : NULL, variant ? &variant->reference : NULL)) {
212 llvmpipe_destroy_shader_variant(llvmpipe, old_ptr);
213 }
214 *ptr = variant;
215 }
216
217 #endif /* LP_STATE_FS_H_ */
218