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
|
/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SKSL_UTIL
#define SKSL_UTIL
#include <cstdarg>
#include <memory>
#include "stdlib.h"
#include "string.h"
#include "assert.h"
#include "SkSLString.h"
#include "SkSLStringStream.h"
#if !defined(SKSL_STANDALONE) && SK_SUPPORT_GPU
#include "GrContextOptions.h"
#include "GrShaderCaps.h"
#endif
#ifdef SKSL_STANDALONE
#if defined(_WIN32) || defined(__SYMBIAN32__)
#define SKSL_BUILD_FOR_WIN
#endif
#else
#ifdef SK_BUILD_FOR_WIN
#define SKSL_BUILD_FOR_WIN
#endif // SK_BUILD_FOR_WIN
#endif // SKSL_STANDALONE
class GrShaderCaps;
namespace SkSL {
#if defined(SKSL_STANDALONE) || !SK_SUPPORT_GPU
// we're being compiled standalone, so we don't have access to caps...
enum GrGLSLGeneration {
k110_GrGLSLGeneration,
k130_GrGLSLGeneration,
k140_GrGLSLGeneration,
k150_GrGLSLGeneration,
k330_GrGLSLGeneration,
k400_GrGLSLGeneration,
k420_GrGLSLGeneration,
k310es_GrGLSLGeneration,
k320es_GrGLSLGeneration,
};
#define SKSL_CAPS_CLASS StandaloneShaderCaps
class StandaloneShaderCaps {
public:
GrGLSLGeneration generation() const {
return k400_GrGLSLGeneration;
}
bool canUseMinAndAbsTogether() const {
return true;
}
bool mustForceNegatedAtanParamToFloat() const {
return false;
}
bool shaderDerivativeSupport() const {
return true;
}
bool usesPrecisionModifiers() const {
return true;
}
bool mustDeclareFragmentShaderOutput() const {
return true;
}
bool fbFetchSupport() const {
return true;
}
bool fbFetchNeedsCustomOutput() const {
return false;
}
bool dropsTileOnZeroDivide() const {
return false;
}
bool flatInterpolationSupport() const {
return true;
}
bool noperspectiveInterpolationSupport() const {
return true;
}
bool multisampleInterpolationSupport() const {
return true;
}
bool externalTextureSupport() const {
return true;
}
bool imageLoadStoreSupport() const {
return true;
}
bool mustEnableAdvBlendEqs() const {
return false;
}
bool mustEnableSpecificAdvBlendEqs() const {
return false;
}
bool canUseAnyFunctionInShader() const {
return false;
}
bool floatIs32Bits() const {
return true;
}
bool integerSupport() const {
return false;
}
const char* shaderDerivativeExtensionString() const {
return nullptr;
}
const char* fragCoordConventionsExtensionString() const {
return nullptr;
}
const char* imageLoadStoreExtensionString() const {
return nullptr;
}
const char* geometryShaderExtensionString() const {
return nullptr;
}
const char* gsInvocationsExtensionString() const {
return nullptr;
}
const char* externalTextureExtensionString() const {
return nullptr;
}
const char* secondExternalTextureExtensionString() const {
return nullptr;
}
const char* versionDeclString() const {
return "";
}
bool gsInvocationsSupport() const {
return true;
}
bool canUseFractForNegativeValues() const {
return true;
}
bool canUseFragCoord() const {
return true;
}
bool incompleteShortIntPrecision() const {
return false;
}
const char* fbFetchColorName() const {
return nullptr;
}
};
extern StandaloneShaderCaps standaloneCaps;
#else
#define SKSL_CAPS_CLASS GrShaderCaps
// Various sets of caps for use in tests
class ShaderCapsFactory {
public:
static sk_sp<GrShaderCaps> Default() {
sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions());
result->fVersionDeclString = "#version 400";
result->fShaderDerivativeSupport = true;
return result;
}
static sk_sp<GrShaderCaps> Version450Core() {
sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions());
result->fVersionDeclString = "#version 450 core";
return result;
}
static sk_sp<GrShaderCaps> Version110() {
sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions());
result->fVersionDeclString = "#version 110";
result->fGLSLGeneration = GrGLSLGeneration::k110_GrGLSLGeneration;
return result;
}
static sk_sp<GrShaderCaps> UsesPrecisionModifiers() {
sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions());
result->fVersionDeclString = "#version 400";
result->fUsesPrecisionModifiers = true;
return result;
}
static sk_sp<GrShaderCaps> CannotUseMinAndAbsTogether() {
sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions());
result->fVersionDeclString = "#version 400";
result->fCanUseMinAndAbsTogether = false;
return result;
}
static sk_sp<GrShaderCaps> CannotUseFractForNegativeValues() {
sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions());
result->fVersionDeclString = "#version 400";
result->fCanUseFractForNegativeValues = false;
return result;
}
static sk_sp<GrShaderCaps> MustForceNegatedAtanParamToFloat() {
sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions());
result->fVersionDeclString = "#version 400";
result->fMustForceNegatedAtanParamToFloat = true;
return result;
}
static sk_sp<GrShaderCaps> ShaderDerivativeExtensionString() {
sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions());
result->fVersionDeclString = "#version 400";
result->fShaderDerivativeSupport = true;
result->fShaderDerivativeExtensionString = "GL_OES_standard_derivatives";
result->fUsesPrecisionModifiers = true;
return result;
}
static sk_sp<GrShaderCaps> FragCoordsOld() {
sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions());
result->fVersionDeclString = "#version 110";
result->fGLSLGeneration = GrGLSLGeneration::k110_GrGLSLGeneration;
result->fFragCoordConventionsExtensionString = "GL_ARB_fragment_coord_conventions";
return result;
}
static sk_sp<GrShaderCaps> FragCoordsNew() {
sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions());
result->fVersionDeclString = "#version 400";
result->fFragCoordConventionsExtensionString = "GL_ARB_fragment_coord_conventions";
return result;
}
static sk_sp<GrShaderCaps> GeometryShaderSupport() {
sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions());
result->fVersionDeclString = "#version 400";
result->fGeometryShaderSupport = true;
result->fGSInvocationsSupport = true;
return result;
}
static sk_sp<GrShaderCaps> NoGSInvocationsSupport() {
sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions());
result->fVersionDeclString = "#version 400";
result->fGeometryShaderSupport = true;
result->fGSInvocationsSupport = false;
return result;
}
static sk_sp<GrShaderCaps> GeometryShaderExtensionString() {
sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions());
result->fVersionDeclString = "#version 310es";
result->fGeometryShaderSupport = true;
result->fGeometryShaderExtensionString = "GL_EXT_geometry_shader";
result->fGSInvocationsSupport = true;
return result;
}
static sk_sp<GrShaderCaps> GSInvocationsExtensionString() {
sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions());
result->fVersionDeclString = "#version 400";
result->fGeometryShaderSupport = true;
result->fGSInvocationsSupport = true;
result->fGSInvocationsExtensionString = "GL_ARB_gpu_shader5";
return result;
}
static sk_sp<GrShaderCaps> VariousCaps() {
sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions());
result->fVersionDeclString = "#version 400";
result->fExternalTextureSupport = true;
result->fFBFetchSupport = false;
result->fDropsTileOnZeroDivide = true;
result->fCanUseAnyFunctionInShader = false;
return result;
}
static sk_sp<GrShaderCaps> CannotUseFragCoord() {
sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions());
result->fVersionDeclString = "#version 400";
result->fCanUseFragCoord = false;
return result;
}
static sk_sp<GrShaderCaps> IncompleteShortIntPrecision() {
sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions());
result->fVersionDeclString = "#version 310es";
result->fUsesPrecisionModifiers = true;
result->fIncompleteShortIntPrecision = true;
return result;
}
};
#endif
void write_stringstream(const StringStream& d, OutputStream& out);
#if _MSC_VER
#define NORETURN __declspec(noreturn)
#else
#define NORETURN __attribute__((__noreturn__))
#endif
NORETURN void sksl_abort();
} // namespace
#ifdef SKSL_STANDALONE
#define SkASSERT(x)
#define SkAssertResult(x) x
#define SkDEBUGCODE(x)
#endif
#define SKSL_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
#if defined(__clang__) || defined(__GNUC__)
#define SKSL_PRINTF_LIKE(A, B) __attribute__((format(printf, (A), (B))))
#else
#define SKSL_PRINTF_LIKE(A, B)
#endif
#define ABORT(...) (printf(__VA_ARGS__), sksl_abort())
#endif
|
