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 "util/list.h"
34 #include "pipe/p_compiler.h"
35 #include "pipe/p_state.h"
36 #include "tgsi/tgsi_scan.h" /* for tgsi_shader_info */
37 #include "gallivm/lp_bld_sample.h" /* for struct lp_sampler_static_state */
38 #include "gallivm/lp_bld_tgsi.h" /* for lp_tgsi_info */
39 #include "lp_bld_interp.h" /* for struct lp_shader_input */
40 #include "util/u_inlines.h"
41 #include "lp_jit.h"
42
43 struct tgsi_token;
44 struct lp_fragment_shader;
45
46
47 /** Indexes into jit_function[] array */
48 #define RAST_WHOLE 0
49 #define RAST_EDGE_TEST 1
50
51
52 enum lp_fs_kind
53 {
54 LP_FS_KIND_GENERAL = 0,
55 LP_FS_KIND_BLIT_RGBA,
56 LP_FS_KIND_BLIT_RGB1,
57 LP_FS_KIND_AERO_MINIFICATION,
58 LP_FS_KIND_LLVM_LINEAR
59 };
60
61
62 struct lp_sampler_static_state
63 {
64 /*
65 * These attributes are effectively interleaved for more sane key handling.
66 * However, there might be lots of null space if the amount of samplers and
67 * textures isn't the same.
68 */
69 struct lp_static_sampler_state sampler_state;
70 struct lp_static_texture_state texture_state;
71 };
72
73
74 struct lp_image_static_state
75 {
76 struct lp_static_texture_state image_state;
77 };
78
79 struct lp_depth_state
80 {
81 unsigned enabled:1; /**< depth test enabled? */
82 unsigned writemask:1; /**< allow depth buffer writes? */
83 unsigned func:3; /**< depth test func (PIPE_FUNC_x) */
84 };
85
86 struct lp_fragment_shader_variant_key
87 {
88 struct lp_depth_state depth;
89 struct pipe_stencil_state stencil[2];
90 struct pipe_blend_state blend;
91
92 struct {
93 unsigned enabled:1;
94 unsigned func:3;
95 } alpha;
96
97 unsigned nr_cbufs:8;
98 unsigned nr_samplers:8; /* actually derivable from just the shader */
99 unsigned nr_sampler_views:8; /* actually derivable from just the shader */
100 unsigned nr_images:8; /* actually derivable from just the shader */
101 unsigned flatshade:1;
102 unsigned occlusion_count:1;
103 unsigned resource_1d:1;
104 unsigned depth_clamp:1;
105 unsigned multisample:1;
106 unsigned no_ms_sample_mask_out:1;
107 unsigned restrict_depth_values:1;
108
109 enum pipe_format zsbuf_format;
110 enum pipe_format cbuf_format[PIPE_MAX_COLOR_BUFS];
111
112 uint8_t cbuf_nr_samples[PIPE_MAX_COLOR_BUFS];
113 uint8_t zsbuf_nr_samples;
114 uint8_t coverage_samples;
115 uint8_t min_samples;
116 /* followed by variable number of samplers + images */
117 };
118
119 #define LP_FS_MAX_VARIANT_KEY_SIZE \
120 (sizeof(struct lp_fragment_shader_variant_key) + \
121 PIPE_MAX_SHADER_SAMPLER_VIEWS * sizeof(struct lp_sampler_static_state) +\
122 PIPE_MAX_SHADER_IMAGES * sizeof(struct lp_image_static_state))
123
124 static inline size_t
lp_fs_variant_key_size(unsigned nr_samplers,unsigned nr_images)125 lp_fs_variant_key_size(unsigned nr_samplers, unsigned nr_images)
126 {
127 return (sizeof(struct lp_fragment_shader_variant_key) +
128 nr_samplers * sizeof(struct lp_sampler_static_state) +
129 nr_images * sizeof(struct lp_image_static_state));
130 }
131
132 static inline struct lp_sampler_static_state *
lp_fs_variant_key_samplers(const struct lp_fragment_shader_variant_key * key)133 lp_fs_variant_key_samplers(const struct lp_fragment_shader_variant_key *key)
134 {
135 return (struct lp_sampler_static_state *)&(key[1]);
136 }
137
138 static inline struct lp_sampler_static_state *
lp_fs_variant_key_sampler_idx(const struct lp_fragment_shader_variant_key * key,int idx)139 lp_fs_variant_key_sampler_idx(const struct lp_fragment_shader_variant_key *key, int idx)
140 {
141 if (idx >= key->nr_samplers)
142 return NULL;
143 return &lp_fs_variant_key_samplers(key)[idx];
144 }
145
146 static inline struct lp_image_static_state *
lp_fs_variant_key_images(struct lp_fragment_shader_variant_key * key)147 lp_fs_variant_key_images(struct lp_fragment_shader_variant_key *key)
148 {
149 return (struct lp_image_static_state *)
150 &(lp_fs_variant_key_samplers(key)[MAX2(key->nr_samplers,
151 key->nr_sampler_views)]);
152 }
153
154 /** doubly-linked list item */
155 struct lp_fs_variant_list_item
156 {
157 struct list_head list;
158 struct lp_fragment_shader_variant *base;
159 };
160
161
162 struct lp_fragment_shader_variant
163 {
164 /*
165 * Whether some primitives can be opaque.
166 */
167 unsigned potentially_opaque:1;
168
169 unsigned opaque:1;
170 unsigned blit:1;
171 unsigned linear_input_mask:16;
172 struct pipe_reference reference;
173
174 struct gallivm_state *gallivm;
175
176 LLVMTypeRef jit_context_ptr_type;
177 LLVMTypeRef jit_thread_data_ptr_type;
178 LLVMTypeRef jit_linear_context_ptr_type;
179
180 LLVMValueRef function[2]; // [RAST_WHOLE], [RAST_EDGE_TEST]
181
182 lp_jit_frag_func jit_function[2]; // [RAST_WHOLE], [RAST_EDGE_TEST]
183
184 lp_jit_linear_func jit_linear;
185 lp_jit_linear_func jit_linear_blit;
186
187 /* Functions within the linear path:
188 */
189 LLVMValueRef linear_function;
190 lp_jit_linear_llvm_func jit_linear_llvm;
191
192 /* Bitmask to say what cbufs are unswizzled */
193 unsigned unswizzled_cbufs;
194
195 /* Total number of LLVM instructions generated */
196 unsigned nr_instrs;
197
198 struct lp_fs_variant_list_item list_item_global, list_item_local;
199 struct lp_fragment_shader *shader;
200
201 /* For debugging/profiling purposes */
202 unsigned no;
203
204 /* key is variable-sized, must be last */
205 struct lp_fragment_shader_variant_key key;
206 };
207
208
209 /** Subclass of pipe_shader_state */
210 struct lp_fragment_shader
211 {
212 struct pipe_shader_state base;
213
214 struct pipe_reference reference;
215 struct lp_tgsi_info info;
216
217 /* Analysis results */
218 enum lp_fs_kind kind;
219
220 struct lp_fs_variant_list_item variants;
221
222 struct draw_fragment_shader *draw_data;
223
224 /* For debugging/profiling purposes */
225 unsigned variant_key_size;
226 unsigned no;
227 unsigned variants_created;
228 unsigned variants_cached;
229
230 /** Fragment shader input interpolation info */
231 struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];
232 };
233
234
235 void
236 llvmpipe_fs_analyse_nir(struct lp_fragment_shader *shader);
237
238 void
239 llvmpipe_fs_analyse(struct lp_fragment_shader *shader,
240 const struct tgsi_token *tokens);
241
242 void
243 llvmpipe_fs_variant_fastpath(struct lp_fragment_shader_variant *variant);
244
245 void
246 llvmpipe_fs_variant_linear_fastpath(struct lp_fragment_shader_variant *variant);
247
248 void
249 llvmpipe_fs_variant_linear_llvm(struct llvmpipe_context *lp,
250 struct lp_fragment_shader *shader,
251 struct lp_fragment_shader_variant *variant);
252
253 void
254 lp_debug_fs_variant(struct lp_fragment_shader_variant *variant);
255
256 const char *
257 lp_debug_fs_kind(enum lp_fs_kind kind);
258
259 void
260 lp_linear_check_variant(struct lp_fragment_shader_variant *variant);
261
262 void
263 llvmpipe_destroy_fs(struct llvmpipe_context *llvmpipe,
264 struct lp_fragment_shader *shader);
265
266 static inline void
lp_fs_reference(struct llvmpipe_context * llvmpipe,struct lp_fragment_shader ** ptr,struct lp_fragment_shader * shader)267 lp_fs_reference(struct llvmpipe_context *llvmpipe,
268 struct lp_fragment_shader **ptr,
269 struct lp_fragment_shader *shader)
270 {
271 struct lp_fragment_shader *old_ptr = *ptr;
272 if (pipe_reference(old_ptr ? &(*ptr)->reference : NULL,
273 shader ? &shader->reference : NULL)) {
274 llvmpipe_destroy_fs(llvmpipe, old_ptr);
275 }
276 *ptr = shader;
277 }
278
279 void
280 llvmpipe_destroy_shader_variant(struct llvmpipe_context *lp,
281 struct lp_fragment_shader_variant *variant);
282
283 static inline void
lp_fs_variant_reference(struct llvmpipe_context * llvmpipe,struct lp_fragment_shader_variant ** ptr,struct lp_fragment_shader_variant * variant)284 lp_fs_variant_reference(struct llvmpipe_context *llvmpipe,
285 struct lp_fragment_shader_variant **ptr,
286 struct lp_fragment_shader_variant *variant)
287 {
288 struct lp_fragment_shader_variant *old_ptr = *ptr;
289 if (pipe_reference(old_ptr ? &(*ptr)->reference : NULL,
290 variant ? &variant->reference : NULL)) {
291 llvmpipe_destroy_shader_variant(llvmpipe, old_ptr);
292 }
293 *ptr = variant;
294 }
295
296 #endif /* LP_STATE_FS_H_ */
297