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