1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
|
// Copyright 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CC_OUTPUT_SHADER_H_
#define CC_OUTPUT_SHADER_H_
#include <string>
#include "base/basictypes.h"
#include "cc/base/cc_export.h"
#include "third_party/skia/include/core/SkColorPriv.h"
namespace gfx {
class Point;
class Size;
}
namespace gpu {
namespace gles2 {
class GLES2Interface;
}
}
namespace cc {
enum TexCoordPrecision {
TexCoordPrecisionNA = 0,
TexCoordPrecisionMedium = 1,
TexCoordPrecisionHigh = 2,
NumTexCoordPrecisions = 3
};
enum SamplerType {
SamplerTypeNA = 0,
SamplerType2D = 1,
SamplerType2DRect = 2,
SamplerTypeExternalOES = 3,
NumSamplerTypes = 4
};
// Note: The highp_threshold_cache must be provided by the caller to make
// the caching multi-thread/context safe in an easy low-overhead manner.
// The caller must make sure to clear highp_threshold_cache to 0, so it can be
// reinitialized, if a new or different context is used.
CC_EXPORT TexCoordPrecision TexCoordPrecisionRequired(
gpu::gles2::GLES2Interface* context,
int *highp_threshold_cache,
int highp_threshold_min,
gfx::Point max_coordinate);
CC_EXPORT TexCoordPrecision TexCoordPrecisionRequired(
gpu::gles2::GLES2Interface* context,
int *highp_threshold_cache,
int highp_threshold_min,
gfx::Size max_size);
class VertexShaderPosTex {
public:
VertexShaderPosTex();
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
std::string GetShaderString() const;
int matrix_location() const { return matrix_location_; }
private:
int matrix_location_;
DISALLOW_COPY_AND_ASSIGN(VertexShaderPosTex);
};
class VertexShaderPosTexYUVStretch {
public:
VertexShaderPosTexYUVStretch();
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
std::string GetShaderString() const;
int matrix_location() const { return matrix_location_; }
int tex_scale_location() const { return tex_scale_location_; }
private:
int matrix_location_;
int tex_scale_location_;
DISALLOW_COPY_AND_ASSIGN(VertexShaderPosTexYUVStretch);
};
class VertexShaderPos {
public:
VertexShaderPos();
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
std::string GetShaderString() const;
int matrix_location() const { return matrix_location_; }
private:
int matrix_location_;
DISALLOW_COPY_AND_ASSIGN(VertexShaderPos);
};
class VertexShaderPosTexIdentity {
public:
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index) {}
std::string GetShaderString() const;
};
class VertexShaderPosTexTransform {
public:
VertexShaderPosTexTransform();
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
std::string GetShaderString() const;
int matrix_location() const { return matrix_location_; }
int tex_transform_location() const { return tex_transform_location_; }
int vertex_opacity_location() const { return vertex_opacity_location_; }
private:
int matrix_location_;
int tex_transform_location_;
int vertex_opacity_location_;
DISALLOW_COPY_AND_ASSIGN(VertexShaderPosTexTransform);
};
class VertexShaderQuad {
public:
VertexShaderQuad();
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
std::string GetShaderString() const;
int matrix_location() const { return matrix_location_; }
int viewport_location() const { return -1; }
int quad_location() const { return quad_location_; }
int edge_location() const { return -1; }
private:
int matrix_location_;
int quad_location_;
DISALLOW_COPY_AND_ASSIGN(VertexShaderQuad);
};
class VertexShaderQuadAA {
public:
VertexShaderQuadAA();
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
std::string GetShaderString() const;
int matrix_location() const { return matrix_location_; }
int viewport_location() const { return viewport_location_; }
int quad_location() const { return quad_location_; }
int edge_location() const { return edge_location_; }
private:
int matrix_location_;
int viewport_location_;
int quad_location_;
int edge_location_;
DISALLOW_COPY_AND_ASSIGN(VertexShaderQuadAA);
};
class VertexShaderQuadTexTransformAA {
public:
VertexShaderQuadTexTransformAA();
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
std::string GetShaderString() const;
int matrix_location() const { return matrix_location_; }
int viewport_location() const { return viewport_location_; }
int quad_location() const { return quad_location_; }
int edge_location() const { return edge_location_; }
int tex_transform_location() const { return tex_transform_location_; }
private:
int matrix_location_;
int viewport_location_;
int quad_location_;
int edge_location_;
int tex_transform_location_;
DISALLOW_COPY_AND_ASSIGN(VertexShaderQuadTexTransformAA);
};
class VertexShaderTile {
public:
VertexShaderTile();
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
std::string GetShaderString() const;
int matrix_location() const { return matrix_location_; }
int viewport_location() const { return -1; }
int quad_location() const { return quad_location_; }
int edge_location() const { return -1; }
int vertex_tex_transform_location() const {
return vertex_tex_transform_location_;
}
private:
int matrix_location_;
int quad_location_;
int vertex_tex_transform_location_;
DISALLOW_COPY_AND_ASSIGN(VertexShaderTile);
};
class VertexShaderTileAA {
public:
VertexShaderTileAA();
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
std::string GetShaderString() const;
int matrix_location() const { return matrix_location_; }
int viewport_location() const { return viewport_location_; }
int quad_location() const { return quad_location_; }
int edge_location() const { return edge_location_; }
int vertex_tex_transform_location() const {
return vertex_tex_transform_location_;
}
private:
int matrix_location_;
int viewport_location_;
int quad_location_;
int edge_location_;
int vertex_tex_transform_location_;
DISALLOW_COPY_AND_ASSIGN(VertexShaderTileAA);
};
class VertexShaderVideoTransform {
public:
VertexShaderVideoTransform();
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
std::string GetShaderString() const;
int matrix_location() const { return matrix_location_; }
int tex_matrix_location() const { return tex_matrix_location_; }
private:
int matrix_location_;
int tex_matrix_location_;
DISALLOW_COPY_AND_ASSIGN(VertexShaderVideoTransform);
};
class FragmentTexAlphaBinding {
public:
FragmentTexAlphaBinding();
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
int alpha_location() const { return alpha_location_; }
int fragment_tex_transform_location() const { return -1; }
int sampler_location() const { return sampler_location_; }
private:
int sampler_location_;
int alpha_location_;
DISALLOW_COPY_AND_ASSIGN(FragmentTexAlphaBinding);
};
class FragmentTexColorMatrixAlphaBinding {
public:
FragmentTexColorMatrixAlphaBinding();
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
int alpha_location() const { return alpha_location_; }
int color_matrix_location() const { return color_matrix_location_; }
int color_offset_location() const { return color_offset_location_; }
int fragment_tex_transform_location() const { return -1; }
int sampler_location() const { return sampler_location_; }
private:
int sampler_location_;
int alpha_location_;
int color_matrix_location_;
int color_offset_location_;
};
class FragmentTexOpaqueBinding {
public:
FragmentTexOpaqueBinding();
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
int alpha_location() const { return -1; }
int fragment_tex_transform_location() const { return -1; }
int background_color_location() const { return -1; }
int sampler_location() const { return sampler_location_; }
private:
int sampler_location_;
DISALLOW_COPY_AND_ASSIGN(FragmentTexOpaqueBinding);
};
class FragmentTexBackgroundBinding {
public:
FragmentTexBackgroundBinding();
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
int background_color_location() const { return background_color_location_; }
int sampler_location() const { return sampler_location_; }
private:
int background_color_location_;
int sampler_location_;
DISALLOW_COPY_AND_ASSIGN(FragmentTexBackgroundBinding);
};
class FragmentShaderRGBATexVaryingAlpha : public FragmentTexOpaqueBinding {
public:
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
};
class FragmentShaderRGBATexPremultiplyAlpha : public FragmentTexOpaqueBinding {
public:
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
};
class FragmentShaderTexBackgroundVaryingAlpha
: public FragmentTexBackgroundBinding {
public:
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
};
class FragmentShaderTexBackgroundPremultiplyAlpha
: public FragmentTexBackgroundBinding {
public:
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
};
class FragmentShaderRGBATexAlpha : public FragmentTexAlphaBinding {
public:
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
};
class FragmentShaderRGBATexColorMatrixAlpha
: public FragmentTexColorMatrixAlphaBinding {
public:
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
};
class FragmentShaderRGBATexOpaque : public FragmentTexOpaqueBinding {
public:
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
};
class FragmentShaderRGBATex : public FragmentTexOpaqueBinding {
public:
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
};
// Swizzles the red and blue component of sampled texel with alpha.
class FragmentShaderRGBATexSwizzleAlpha : public FragmentTexAlphaBinding {
public:
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
};
// Swizzles the red and blue component of sampled texel without alpha.
class FragmentShaderRGBATexSwizzleOpaque : public FragmentTexOpaqueBinding {
public:
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
};
class FragmentShaderRGBATexAlphaAA {
public:
FragmentShaderRGBATexAlphaAA();
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
int alpha_location() const { return alpha_location_; }
int sampler_location() const { return sampler_location_; }
private:
int sampler_location_;
int alpha_location_;
DISALLOW_COPY_AND_ASSIGN(FragmentShaderRGBATexAlphaAA);
};
class FragmentTexClampAlphaAABinding {
public:
FragmentTexClampAlphaAABinding();
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
int alpha_location() const { return alpha_location_; }
int sampler_location() const { return sampler_location_; }
int fragment_tex_transform_location() const {
return fragment_tex_transform_location_;
}
private:
int sampler_location_;
int alpha_location_;
int fragment_tex_transform_location_;
DISALLOW_COPY_AND_ASSIGN(FragmentTexClampAlphaAABinding);
};
class FragmentShaderRGBATexClampAlphaAA
: public FragmentTexClampAlphaAABinding {
public:
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
};
// Swizzles the red and blue component of sampled texel.
class FragmentShaderRGBATexClampSwizzleAlphaAA
: public FragmentTexClampAlphaAABinding {
public:
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
};
class FragmentShaderRGBATexAlphaMask {
public:
FragmentShaderRGBATexAlphaMask();
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
int alpha_location() const { return alpha_location_; }
int sampler_location() const { return sampler_location_; }
int mask_sampler_location() const { return mask_sampler_location_; }
int mask_tex_coord_scale_location() const {
return mask_tex_coord_scale_location_;
}
int mask_tex_coord_offset_location() const {
return mask_tex_coord_offset_location_;
}
private:
int sampler_location_;
int mask_sampler_location_;
int alpha_location_;
int mask_tex_coord_scale_location_;
int mask_tex_coord_offset_location_;
DISALLOW_COPY_AND_ASSIGN(FragmentShaderRGBATexAlphaMask);
};
class FragmentShaderRGBATexAlphaMaskAA {
public:
FragmentShaderRGBATexAlphaMaskAA();
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
int alpha_location() const { return alpha_location_; }
int sampler_location() const { return sampler_location_; }
int mask_sampler_location() const { return mask_sampler_location_; }
int mask_tex_coord_scale_location() const {
return mask_tex_coord_scale_location_;
}
int mask_tex_coord_offset_location() const {
return mask_tex_coord_offset_location_;
}
private:
int sampler_location_;
int mask_sampler_location_;
int alpha_location_;
int mask_tex_coord_scale_location_;
int mask_tex_coord_offset_location_;
DISALLOW_COPY_AND_ASSIGN(FragmentShaderRGBATexAlphaMaskAA);
};
class FragmentShaderRGBATexAlphaMaskColorMatrixAA {
public:
FragmentShaderRGBATexAlphaMaskColorMatrixAA();
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
int alpha_location() const { return alpha_location_; }
int sampler_location() const { return sampler_location_; }
int mask_sampler_location() const { return mask_sampler_location_; }
int mask_tex_coord_scale_location() const {
return mask_tex_coord_scale_location_;
}
int mask_tex_coord_offset_location() const {
return mask_tex_coord_offset_location_;
}
int color_matrix_location() const { return color_matrix_location_; }
int color_offset_location() const { return color_offset_location_; }
private:
int sampler_location_;
int mask_sampler_location_;
int alpha_location_;
int mask_tex_coord_scale_location_;
int mask_tex_coord_offset_location_;
int color_matrix_location_;
int color_offset_location_;
};
class FragmentShaderRGBATexAlphaColorMatrixAA {
public:
FragmentShaderRGBATexAlphaColorMatrixAA();
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
int alpha_location() const { return alpha_location_; }
int sampler_location() const { return sampler_location_; }
int color_matrix_location() const { return color_matrix_location_; }
int color_offset_location() const { return color_offset_location_; }
private:
int sampler_location_;
int alpha_location_;
int color_matrix_location_;
int color_offset_location_;
};
class FragmentShaderRGBATexAlphaMaskColorMatrix {
public:
FragmentShaderRGBATexAlphaMaskColorMatrix();
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
int alpha_location() const { return alpha_location_; }
int sampler_location() const { return sampler_location_; }
int mask_sampler_location() const { return mask_sampler_location_; }
int mask_tex_coord_scale_location() const {
return mask_tex_coord_scale_location_;
}
int mask_tex_coord_offset_location() const {
return mask_tex_coord_offset_location_;
}
int color_matrix_location() const { return color_matrix_location_; }
int color_offset_location() const { return color_offset_location_; }
private:
int sampler_location_;
int mask_sampler_location_;
int alpha_location_;
int mask_tex_coord_scale_location_;
int mask_tex_coord_offset_location_;
int color_matrix_location_;
int color_offset_location_;
};
class FragmentShaderYUVVideo {
public:
FragmentShaderYUVVideo();
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
int y_texture_location() const { return y_texture_location_; }
int u_texture_location() const { return u_texture_location_; }
int v_texture_location() const { return v_texture_location_; }
int alpha_location() const { return alpha_location_; }
int yuv_matrix_location() const { return yuv_matrix_location_; }
int yuv_adj_location() const { return yuv_adj_location_; }
private:
int y_texture_location_;
int u_texture_location_;
int v_texture_location_;
int alpha_location_;
int yuv_matrix_location_;
int yuv_adj_location_;
DISALLOW_COPY_AND_ASSIGN(FragmentShaderYUVVideo);
};
class FragmentShaderYUVAVideo {
public:
FragmentShaderYUVAVideo();
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
int y_texture_location() const { return y_texture_location_; }
int u_texture_location() const { return u_texture_location_; }
int v_texture_location() const { return v_texture_location_; }
int a_texture_location() const { return a_texture_location_; }
int alpha_location() const { return alpha_location_; }
int yuv_matrix_location() const { return yuv_matrix_location_; }
int yuv_adj_location() const { return yuv_adj_location_; }
private:
int y_texture_location_;
int u_texture_location_;
int v_texture_location_;
int a_texture_location_;
int alpha_location_;
int yuv_matrix_location_;
int yuv_adj_location_;
DISALLOW_COPY_AND_ASSIGN(FragmentShaderYUVAVideo);
};
class FragmentShaderColor {
public:
FragmentShaderColor();
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
int color_location() const { return color_location_; }
private:
int color_location_;
DISALLOW_COPY_AND_ASSIGN(FragmentShaderColor);
};
class FragmentShaderColorAA {
public:
FragmentShaderColorAA();
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
int color_location() const { return color_location_; }
private:
int color_location_;
DISALLOW_COPY_AND_ASSIGN(FragmentShaderColorAA);
};
class FragmentShaderCheckerboard {
public:
FragmentShaderCheckerboard();
std::string GetShaderString(
TexCoordPrecision precision, SamplerType sampler) const;
void Init(gpu::gles2::GLES2Interface* context,
unsigned program,
int* base_uniform_index);
int alpha_location() const { return alpha_location_; }
int tex_transform_location() const { return tex_transform_location_; }
int frequency_location() const { return frequency_location_; }
int color_location() const { return color_location_; }
private:
int alpha_location_;
int tex_transform_location_;
int frequency_location_;
int color_location_;
DISALLOW_COPY_AND_ASSIGN(FragmentShaderCheckerboard);
};
} // namespace cc
#endif // CC_OUTPUT_SHADER_H_
|