1 /**************************************************************************
2 *
3 * Copyright 2003 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 above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 /*
29 * Authors:
30 * Keith Whitwell <keithw@vmware.com>
31 */
32
33
34 #ifndef ST_PROGRAM_H
35 #define ST_PROGRAM_H
36
37 #include "main/mtypes.h"
38 #include "main/atifragshader.h"
39 #include "program/program.h"
40 #include "pipe/p_state.h"
41 #include "tgsi/tgsi_from_mesa.h"
42 #include "st_context.h"
43 #include "st_texture.h"
44 #include "st_glsl_to_tgsi.h"
45
46 #ifdef __cplusplus
47 extern "C" {
48 #endif
49
50 #define ST_DOUBLE_ATTRIB_PLACEHOLDER 0xff
51
52 struct st_external_sampler_key
53 {
54 GLuint lower_nv12; /**< bitmask of 2 plane YUV samplers */
55 GLuint lower_iyuv; /**< bitmask of 3 plane YUV samplers */
56 };
57
58 static inline struct st_external_sampler_key
st_get_external_sampler_key(struct st_context * st,struct gl_program * prog)59 st_get_external_sampler_key(struct st_context *st, struct gl_program *prog)
60 {
61 unsigned mask = prog->ExternalSamplersUsed;
62 struct st_external_sampler_key key;
63
64 memset(&key, 0, sizeof(key));
65
66 while (unlikely(mask)) {
67 unsigned unit = u_bit_scan(&mask);
68 struct st_texture_object *stObj =
69 st_get_texture_object(st->ctx, prog, unit);
70
71 switch (st_get_view_format(stObj)) {
72 case PIPE_FORMAT_NV12:
73 key.lower_nv12 |= (1 << unit);
74 break;
75 case PIPE_FORMAT_IYUV:
76 key.lower_iyuv |= (1 << unit);
77 break;
78 default:
79 break;
80 }
81 }
82
83 return key;
84 }
85
86 /** Fragment program variant key */
87 struct st_fp_variant_key
88 {
89 struct st_context *st; /**< variants are per-context */
90
91 /** for glBitmap */
92 GLuint bitmap:1; /**< glBitmap variant? */
93
94 /** for glDrawPixels */
95 GLuint drawpixels:1; /**< glDrawPixels variant */
96 GLuint scaleAndBias:1; /**< glDrawPixels w/ scale and/or bias? */
97 GLuint pixelMaps:1; /**< glDrawPixels w/ pixel lookup map? */
98
99 /** for ARB_color_buffer_float */
100 GLuint clamp_color:1;
101
102 /** for ARB_sample_shading */
103 GLuint persample_shading:1;
104
105 /** needed for ATI_fragment_shader */
106 GLuint fog:2;
107
108 /** needed for ATI_fragment_shader */
109 char texture_targets[MAX_NUM_FRAGMENT_REGISTERS_ATI];
110
111 struct st_external_sampler_key external;
112 };
113
114
115 /**
116 * Variant of a fragment program.
117 */
118 struct st_fp_variant
119 {
120 /** Parameters which generated this version of fragment program */
121 struct st_fp_variant_key key;
122
123 /** Driver's compiled shader */
124 void *driver_shader;
125
126 /** For glBitmap variants */
127 uint bitmap_sampler;
128
129 /** For glDrawPixels variants */
130 unsigned drawpix_sampler;
131 unsigned pixelmap_sampler;
132
133 /** next in linked list */
134 struct st_fp_variant *next;
135 };
136
137
138 /**
139 * Derived from Mesa gl_program:
140 */
141 struct st_fragment_program
142 {
143 struct gl_program Base;
144 struct pipe_shader_state tgsi;
145 struct glsl_to_tgsi_visitor* glsl_to_tgsi;
146 struct ati_fragment_shader *ati_fs;
147 uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
148
149 /* used when bypassing glsl_to_tgsi: */
150 struct gl_shader_program *shader_program;
151
152 struct st_fp_variant *variants;
153
154 /* Used by the shader cache and ARB_get_program_binary */
155 unsigned num_tgsi_tokens;
156 };
157
158
159
160 /** Vertex program variant key */
161 struct st_vp_variant_key
162 {
163 struct st_context *st; /**< variants are per-context */
164 boolean passthrough_edgeflags;
165
166 /** for ARB_color_buffer_float */
167 boolean clamp_color;
168 };
169
170
171 /**
172 * This represents a vertex program, especially translated to match
173 * the inputs of a particular fragment shader.
174 */
175 struct st_vp_variant
176 {
177 /* Parameters which generated this translated version of a vertex
178 * shader:
179 */
180 struct st_vp_variant_key key;
181
182 /**
183 * TGSI tokens (to later generate a 'draw' module shader for
184 * selection/feedback/rasterpos)
185 */
186 struct pipe_shader_state tgsi;
187
188 /** Driver's compiled shader */
189 void *driver_shader;
190
191 /** For using our private draw module (glRasterPos) */
192 struct draw_vertex_shader *draw_shader;
193
194 /** Next in linked list */
195 struct st_vp_variant *next;
196
197 /** similar to that in st_vertex_program, but with edgeflags info too */
198 GLuint num_inputs;
199 };
200
201
202 /**
203 * Derived from Mesa gl_program:
204 */
205 struct st_vertex_program
206 {
207 struct gl_program Base; /**< The Mesa vertex program */
208 struct pipe_shader_state tgsi;
209 struct glsl_to_tgsi_visitor* glsl_to_tgsi;
210 uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
211
212 /* used when bypassing glsl_to_tgsi: */
213 struct gl_shader_program *shader_program;
214
215 /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
216 ubyte index_to_input[PIPE_MAX_ATTRIBS];
217 ubyte num_inputs;
218
219 /** Maps VARYING_SLOT_x to slot */
220 ubyte result_to_output[VARYING_SLOT_MAX];
221
222 /** List of translated variants of this vertex program.
223 */
224 struct st_vp_variant *variants;
225
226 /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
227 unsigned char sha1[20];
228
229 /* Used by the shader cache and ARB_get_program_binary */
230 unsigned num_tgsi_tokens;
231 };
232
233
234
235 /** Key shared by all shaders except VP, FP */
236 struct st_basic_variant_key
237 {
238 struct st_context *st; /**< variants are per-context */
239 };
240
241
242 /**
243 * Geometry program variant.
244 */
245 struct st_basic_variant
246 {
247 /* Parameters which generated this variant. */
248 struct st_basic_variant_key key;
249
250 void *driver_shader;
251
252 struct st_basic_variant *next;
253 };
254
255
256 /**
257 * Derived from Mesa gl_program:
258 */
259 struct st_common_program
260 {
261 struct gl_program Base;
262 struct pipe_shader_state tgsi;
263 struct glsl_to_tgsi_visitor* glsl_to_tgsi;
264 uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
265
266 /* used when bypassing glsl_to_tgsi: */
267 struct gl_shader_program *shader_program;
268
269 struct st_basic_variant *variants;
270
271 /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
272 unsigned char sha1[20];
273
274 /* Used by the shader cache and ARB_get_program_binary */
275 unsigned num_tgsi_tokens;
276 };
277
278
279 /**
280 * Derived from Mesa gl_program:
281 */
282 struct st_compute_program
283 {
284 struct gl_program Base; /**< The Mesa compute program */
285 struct pipe_compute_state tgsi;
286 struct glsl_to_tgsi_visitor* glsl_to_tgsi;
287 uint64_t affected_states; /**< ST_NEW_* flags to mark dirty when binding */
288
289 /* used when bypassing glsl_to_tgsi: */
290 struct gl_shader_program *shader_program;
291
292 struct st_basic_variant *variants;
293
294 /** SHA1 hash of linked tgsi shader program, used for on-disk cache */
295 unsigned char sha1[20];
296
297 /* Used by the shader cache and ARB_get_program_binary */
298 unsigned num_tgsi_tokens;
299 };
300
301
302 static inline struct st_fragment_program *
st_fragment_program(struct gl_program * fp)303 st_fragment_program( struct gl_program *fp )
304 {
305 return (struct st_fragment_program *)fp;
306 }
307
308
309 static inline struct st_vertex_program *
st_vertex_program(struct gl_program * vp)310 st_vertex_program( struct gl_program *vp )
311 {
312 return (struct st_vertex_program *)vp;
313 }
314
315 static inline struct st_common_program *
st_common_program(struct gl_program * gp)316 st_common_program( struct gl_program *gp )
317 {
318 return (struct st_common_program *)gp;
319 }
320
321 static inline struct st_compute_program *
st_compute_program(struct gl_program * cp)322 st_compute_program( struct gl_program *cp )
323 {
324 return (struct st_compute_program *)cp;
325 }
326
327 static inline void
st_reference_vertprog(struct st_context * st,struct st_vertex_program ** ptr,struct st_vertex_program * prog)328 st_reference_vertprog(struct st_context *st,
329 struct st_vertex_program **ptr,
330 struct st_vertex_program *prog)
331 {
332 _mesa_reference_program(st->ctx,
333 (struct gl_program **) ptr,
334 (struct gl_program *) prog);
335 }
336
337 static inline void
st_reference_fragprog(struct st_context * st,struct st_fragment_program ** ptr,struct st_fragment_program * prog)338 st_reference_fragprog(struct st_context *st,
339 struct st_fragment_program **ptr,
340 struct st_fragment_program *prog)
341 {
342 _mesa_reference_program(st->ctx,
343 (struct gl_program **) ptr,
344 (struct gl_program *) prog);
345 }
346
347 static inline void
st_reference_prog(struct st_context * st,struct st_common_program ** ptr,struct st_common_program * prog)348 st_reference_prog(struct st_context *st,
349 struct st_common_program **ptr,
350 struct st_common_program *prog)
351 {
352 _mesa_reference_program(st->ctx,
353 (struct gl_program **) ptr,
354 (struct gl_program *) prog);
355 }
356
357 static inline void
st_reference_compprog(struct st_context * st,struct st_compute_program ** ptr,struct st_compute_program * prog)358 st_reference_compprog(struct st_context *st,
359 struct st_compute_program **ptr,
360 struct st_compute_program *prog)
361 {
362 _mesa_reference_program(st->ctx,
363 (struct gl_program **) ptr,
364 (struct gl_program *) prog);
365 }
366
367 /**
368 * This defines mapping from Mesa VARYING_SLOTs to TGSI GENERIC slots.
369 */
370 static inline unsigned
st_get_generic_varying_index(struct st_context * st,GLuint attr)371 st_get_generic_varying_index(struct st_context *st, GLuint attr)
372 {
373 return tgsi_get_generic_gl_varying_index((gl_varying_slot)attr,
374 st->needs_texcoord_semantic);
375 }
376
377 extern void
378 st_set_prog_affected_state_flags(struct gl_program *prog);
379
380 extern struct st_vp_variant *
381 st_get_vp_variant(struct st_context *st,
382 struct st_vertex_program *stvp,
383 const struct st_vp_variant_key *key);
384
385
386 extern struct st_fp_variant *
387 st_get_fp_variant(struct st_context *st,
388 struct st_fragment_program *stfp,
389 const struct st_fp_variant_key *key);
390
391 extern struct st_basic_variant *
392 st_get_cp_variant(struct st_context *st,
393 struct pipe_compute_state *tgsi,
394 struct st_basic_variant **variants);
395
396 extern struct st_basic_variant *
397 st_get_basic_variant(struct st_context *st,
398 unsigned pipe_shader,
399 struct st_common_program *p);
400
401 extern void
402 st_release_vp_variants( struct st_context *st,
403 struct st_vertex_program *stvp );
404
405 extern void
406 st_release_fp_variants( struct st_context *st,
407 struct st_fragment_program *stfp );
408
409 extern void
410 st_release_cp_variants(struct st_context *st,
411 struct st_compute_program *stcp);
412
413 extern void
414 st_release_basic_variants(struct st_context *st, GLenum target,
415 struct st_basic_variant **variants,
416 struct pipe_shader_state *tgsi);
417
418 extern void
419 st_destroy_program_variants(struct st_context *st);
420
421 extern bool
422 st_translate_vertex_program(struct st_context *st,
423 struct st_vertex_program *stvp);
424
425 extern bool
426 st_translate_fragment_program(struct st_context *st,
427 struct st_fragment_program *stfp);
428
429 extern bool
430 st_translate_geometry_program(struct st_context *st,
431 struct st_common_program *stgp);
432
433 extern bool
434 st_translate_tessctrl_program(struct st_context *st,
435 struct st_common_program *sttcp);
436
437 extern bool
438 st_translate_tesseval_program(struct st_context *st,
439 struct st_common_program *sttep);
440
441 extern bool
442 st_translate_compute_program(struct st_context *st,
443 struct st_compute_program *stcp);
444
445 extern void
446 st_print_current_vertex_program(void);
447
448 extern void
449 st_precompile_shader_variant(struct st_context *st,
450 struct gl_program *prog);
451
452 #ifdef __cplusplus
453 }
454 #endif
455
456 #endif
457