1 /*
2 * Copyright 2012 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #ifndef GrGLUtil_DEFINED
9 #define GrGLUtil_DEFINED
10
11 #include "include/gpu/gl/GrGLInterface.h"
12 #include "include/private/gpu/ganesh/GrTypesPriv.h"
13 #include "src/core/SkImageInfoPriv.h"
14 #include "src/gpu/ganesh/GrDataUtils.h"
15 #include "src/gpu/ganesh/GrStencilSettings.h"
16 #include "src/gpu/ganesh/gl/GrGLDefines_impl.h"
17
18 class SkMatrix;
19
20 ////////////////////////////////////////////////////////////////////////////////
21
22 typedef uint32_t GrGLVersion;
23 typedef uint32_t GrGLSLVersion;
24 typedef uint64_t GrGLDriverVersion;
25
26 #define GR_GL_VER(major, minor) ((static_cast<uint32_t>(major) << 16) | \
27 static_cast<uint32_t>(minor))
28 #define GR_GLSL_VER(major, minor) ((static_cast<uint32_t>(major) << 16) | \
29 static_cast<uint32_t>(minor))
30 #define GR_GL_DRIVER_VER(major, minor, point) ((static_cast<uint64_t>(major) << 32) | \
31 (static_cast<uint64_t>(minor) << 16) | \
32 static_cast<uint64_t>(point))
33
34 #define GR_GL_MAJOR_VER(version) (static_cast<uint32_t>(version) >> 16)
35 #define GR_GL_MINOR_VER(version) (static_cast<uint32_t>(version) & 0xFFFF)
36
37 #define GR_GL_INVALID_VER GR_GL_VER(0, 0)
38 #define GR_GLSL_INVALID_VER GR_GLSL_VER(0, 0)
39 #define GR_GL_DRIVER_UNKNOWN_VER GR_GL_DRIVER_VER(0, 0, 0)
40
GrGLFormatChannels(GrGLFormat format)41 static constexpr uint32_t GrGLFormatChannels(GrGLFormat format) {
42 switch (format) {
43 case GrGLFormat::kUnknown: return 0;
44 case GrGLFormat::kRGBA8: return kRGBA_SkColorChannelFlags;
45 case GrGLFormat::kR8: return kRed_SkColorChannelFlag;
46 case GrGLFormat::kALPHA8: return kAlpha_SkColorChannelFlag;
47 case GrGLFormat::kLUMINANCE8: return kGray_SkColorChannelFlag;
48 case GrGLFormat::kLUMINANCE8_ALPHA8: return kGrayAlpha_SkColorChannelFlags;
49 case GrGLFormat::kBGRA8: return kRGBA_SkColorChannelFlags;
50 case GrGLFormat::kRGB565: return kRGB_SkColorChannelFlags;
51 case GrGLFormat::kRGBA16F: return kRGBA_SkColorChannelFlags;
52 case GrGLFormat::kR16F: return kRed_SkColorChannelFlag;
53 case GrGLFormat::kRGB8: return kRGB_SkColorChannelFlags;
54 case GrGLFormat::kRGBX8: return kRGB_SkColorChannelFlags;
55 case GrGLFormat::kRG8: return kRG_SkColorChannelFlags;
56 case GrGLFormat::kRGB10_A2: return kRGBA_SkColorChannelFlags;
57 case GrGLFormat::kRGBA4: return kRGBA_SkColorChannelFlags;
58 case GrGLFormat::kSRGB8_ALPHA8: return kRGBA_SkColorChannelFlags;
59 case GrGLFormat::kCOMPRESSED_ETC1_RGB8: return kRGB_SkColorChannelFlags;
60 case GrGLFormat::kCOMPRESSED_RGB8_ETC2: return kRGB_SkColorChannelFlags;
61 case GrGLFormat::kCOMPRESSED_RGB8_BC1: return kRGB_SkColorChannelFlags;
62 case GrGLFormat::kCOMPRESSED_RGBA8_BC1: return kRGBA_SkColorChannelFlags;
63 case GrGLFormat::kR16: return kRed_SkColorChannelFlag;
64 case GrGLFormat::kRG16: return kRG_SkColorChannelFlags;
65 case GrGLFormat::kRGBA16: return kRGBA_SkColorChannelFlags;
66 case GrGLFormat::kRG16F: return kRG_SkColorChannelFlags;
67 case GrGLFormat::kLUMINANCE16F: return kGray_SkColorChannelFlag;
68 case GrGLFormat::kSTENCIL_INDEX8: return 0;
69 case GrGLFormat::kSTENCIL_INDEX16: return 0;
70 case GrGLFormat::kDEPTH24_STENCIL8: return 0;
71 }
72 SkUNREACHABLE;
73 }
74
GrGLFormatDesc(GrGLFormat format)75 static constexpr GrColorFormatDesc GrGLFormatDesc(GrGLFormat format) {
76 switch (format) {
77 case GrGLFormat::kUnknown: return GrColorFormatDesc::MakeInvalid();
78
79 case GrGLFormat::kRGBA8:
80 return GrColorFormatDesc::MakeRGBA(8, GrColorTypeEncoding::kUnorm);
81 case GrGLFormat::kR8:
82 return GrColorFormatDesc::MakeR(8, GrColorTypeEncoding::kUnorm);
83 case GrGLFormat::kALPHA8:
84 return GrColorFormatDesc::MakeAlpha(8, GrColorTypeEncoding::kUnorm);
85 case GrGLFormat::kLUMINANCE8:
86 return GrColorFormatDesc::MakeGray(8, GrColorTypeEncoding::kUnorm);
87 case GrGLFormat::kLUMINANCE8_ALPHA8:
88 return GrColorFormatDesc::MakeGrayAlpha(8, GrColorTypeEncoding::kUnorm);
89 case GrGLFormat::kBGRA8:
90 return GrColorFormatDesc::MakeRGBA(8, GrColorTypeEncoding::kUnorm);
91 case GrGLFormat::kRGB565:
92 return GrColorFormatDesc::MakeRGB(5, 6, 5, GrColorTypeEncoding::kUnorm);
93 case GrGLFormat::kRGBA16F:
94 return GrColorFormatDesc::MakeRGBA(16, GrColorTypeEncoding::kFloat);
95 case GrGLFormat::kR16F:
96 return GrColorFormatDesc::MakeR(16, GrColorTypeEncoding::kFloat);
97 case GrGLFormat::kRGB8:
98 return GrColorFormatDesc::MakeRGB(8, GrColorTypeEncoding::kUnorm);
99 case GrGLFormat::kRGBX8:
100 return GrColorFormatDesc::MakeRGB(8, GrColorTypeEncoding::kUnorm);
101 case GrGLFormat::kRG8:
102 return GrColorFormatDesc::MakeRG(8, GrColorTypeEncoding::kUnorm);
103 case GrGLFormat::kRGB10_A2:
104 return GrColorFormatDesc::MakeRGBA(10, 2, GrColorTypeEncoding::kUnorm);
105 case GrGLFormat::kRGBA4:
106 return GrColorFormatDesc::MakeRGBA(4, GrColorTypeEncoding::kUnorm);
107 case GrGLFormat::kSRGB8_ALPHA8:
108 return GrColorFormatDesc::MakeRGBA(8, GrColorTypeEncoding::kSRGBUnorm);
109 case GrGLFormat::kR16:
110 return GrColorFormatDesc::MakeR(16, GrColorTypeEncoding::kUnorm);
111 case GrGLFormat::kRG16:
112 return GrColorFormatDesc::MakeRG(16, GrColorTypeEncoding::kUnorm);
113 case GrGLFormat::kRGBA16:
114 return GrColorFormatDesc::MakeRGBA(16, GrColorTypeEncoding::kUnorm);
115 case GrGLFormat::kRG16F:
116 return GrColorFormatDesc::MakeRG(16, GrColorTypeEncoding::kFloat);
117 case GrGLFormat::kLUMINANCE16F:
118 return GrColorFormatDesc::MakeGray(16, GrColorTypeEncoding::kFloat);
119
120 // Compressed texture formats are not expected to have a description.
121 case GrGLFormat::kCOMPRESSED_ETC1_RGB8: return GrColorFormatDesc::MakeInvalid();
122 case GrGLFormat::kCOMPRESSED_RGB8_ETC2: return GrColorFormatDesc::MakeInvalid();
123 case GrGLFormat::kCOMPRESSED_RGB8_BC1: return GrColorFormatDesc::MakeInvalid();
124 case GrGLFormat::kCOMPRESSED_RGBA8_BC1: return GrColorFormatDesc::MakeInvalid();
125
126 // This type only describes color channels.
127 case GrGLFormat::kSTENCIL_INDEX8: return GrColorFormatDesc::MakeInvalid();
128 case GrGLFormat::kSTENCIL_INDEX16: return GrColorFormatDesc::MakeInvalid();
129 case GrGLFormat::kDEPTH24_STENCIL8: return GrColorFormatDesc::MakeInvalid();
130 }
131 SkUNREACHABLE;
132 }
133
134 /**
135 * The Vendor and Renderer enum values are lazily updated as required.
136 */
137 enum class GrGLVendor {
138 kARM,
139 kGoogle,
140 kImagination,
141 kIntel,
142 kQualcomm,
143 kNVIDIA,
144 kATI,
145
146 kOther
147 };
148
149 enum class GrGLRenderer {
150 kTegra_PreK1, // Legacy Tegra architecture (pre-K1).
151 kTegra, // Tegra with the same architecture as NVIDIA desktop GPUs (K1+).
152
153 kPowerVR54x,
154 kPowerVRRogue,
155
156 kAdreno3xx,
157 kAdreno430,
158 kAdreno4xx_other,
159 kAdreno530,
160 kAdreno5xx_other,
161 kAdreno615, // Pixel3a
162 kAdreno620, // Pixel5
163 kAdreno630, // Pixel3
164 kAdreno640, // Pixel4
165 kAdreno6xx_other,
166
167 /** Intel GPU families, ordered by generation **/
168 // 6th gen
169 kIntelSandyBridge,
170
171 // 7th gen
172 kIntelIvyBridge,
173 kIntelValleyView, // aka BayTrail
174 kIntelHaswell,
175
176 // 8th gen
177 kIntelCherryView, // aka Braswell
178 kIntelBroadwell,
179
180 // 9th gen
181 kIntelApolloLake,
182 kIntelSkyLake,
183 kIntelGeminiLake,
184 kIntelKabyLake,
185 kIntelCoffeeLake,
186
187 // 11th gen
188 kIntelIceLake,
189
190 // 12th gen
191 kIntelRocketLake,
192 kIntelTigerLake,
193 kIntelAlderLake,
194
195 kGalliumLLVM,
196
197 kMali4xx,
198 /** G-3x, G-5x, or G-7x */
199 kMaliG,
200 /** T-6xx, T-7xx, or T-8xx */
201 kMaliT,
202
203 kAMDRadeonHD7xxx, // AMD Radeon HD 7000 Series
204 kAMDRadeonR9M3xx, // AMD Radeon R9 M300 Series
205 kAMDRadeonR9M4xx, // AMD Radeon R9 M400 Series
206 kAMDRadeonPro5xxx, // AMD Radeon Pro 5000 Series
207 kAMDRadeonProVegaxx, // AMD Radeon Pro Vega
208
209 kWebGL,
210
211 kOther
212 };
213
214 enum class GrGLDriver {
215 kMesa,
216 kNVIDIA,
217 kIntel,
218 kQualcomm,
219 kFreedreno,
220 kAndroidEmulator,
221 kImagination,
222 kARM,
223 kUnknown
224 };
225
226 enum class GrGLANGLEBackend {
227 kUnknown,
228 kD3D9,
229 kD3D11,
230 kMetal,
231 kOpenGL
232 };
233
234 ////////////////////////////////////////////////////////////////////////////////
235
236 /**
237 * Some drivers want the var-int arg to be zero-initialized on input.
238 */
239 #define GR_GL_INIT_ZERO 0
240 #define GR_GL_GetIntegerv(gl, e, p) \
241 do { \
242 *(p) = GR_GL_INIT_ZERO; \
243 GR_GL_CALL(gl, GetIntegerv(e, p)); \
244 } while (0)
245
246 #define GR_GL_GetFloatv(gl, e, p) \
247 do { \
248 *(p) = GR_GL_INIT_ZERO; \
249 GR_GL_CALL(gl, GetFloatv(e, p)); \
250 } while (0)
251
252 #define GR_GL_GetFramebufferAttachmentParameteriv(gl, t, a, pname, p) \
253 do { \
254 *(p) = GR_GL_INIT_ZERO; \
255 GR_GL_CALL(gl, GetFramebufferAttachmentParameteriv(t, a, pname, p)); \
256 } while (0)
257
258 #define GR_GL_GetInternalformativ(gl, t, f, n, s, p) \
259 do { \
260 *(p) = GR_GL_INIT_ZERO; \
261 GR_GL_CALL(gl, GetInternalformativ(t, f, n, s, p)); \
262 } while (0)
263
264 #define GR_GL_GetNamedFramebufferAttachmentParameteriv(gl, fb, a, pname, p) \
265 do { \
266 *(p) = GR_GL_INIT_ZERO; \
267 GR_GL_CALL(gl, GetNamedFramebufferAttachmentParameteriv(fb, a, pname, p)); \
268 } while (0)
269
270 #define GR_GL_GetRenderbufferParameteriv(gl, t, pname, p) \
271 do { \
272 *(p) = GR_GL_INIT_ZERO; \
273 GR_GL_CALL(gl, GetRenderbufferParameteriv(t, pname, p)); \
274 } while (0)
275
276 #define GR_GL_GetTexLevelParameteriv(gl, t, l, pname, p) \
277 do { \
278 *(p) = GR_GL_INIT_ZERO; \
279 GR_GL_CALL(gl, GetTexLevelParameteriv(t, l, pname, p)); \
280 } while (0)
281
282 #define GR_GL_GetShaderPrecisionFormat(gl, st, pt, range, precision) \
283 do { \
284 (range)[0] = GR_GL_INIT_ZERO; \
285 (range)[1] = GR_GL_INIT_ZERO; \
286 (*precision) = GR_GL_INIT_ZERO; \
287 GR_GL_CALL(gl, GetShaderPrecisionFormat(st, pt, range, precision)); \
288 } while (0)
289
290 ////////////////////////////////////////////////////////////////////////////////
291
292 GrGLStandard GrGLGetStandardInUseFromString(const char* versionString);
293 GrGLSLVersion GrGLGetVersion(const GrGLInterface*);
294 GrGLSLVersion GrGLGetVersionFromString(const char*);
295
296 struct GrGLDriverInfo {
297 GrGLStandard fStandard = kNone_GrGLStandard;
298 GrGLVersion fVersion = GR_GL_INVALID_VER;
299 GrGLSLVersion fGLSLVersion = GR_GLSL_INVALID_VER;
300 GrGLVendor fVendor = GrGLVendor::kOther;
301 GrGLRenderer fRenderer = GrGLRenderer::kOther;
302 GrGLDriver fDriver = GrGLDriver::kUnknown;
303 GrGLDriverVersion fDriverVersion = GR_GL_DRIVER_UNKNOWN_VER;
304
305 GrGLANGLEBackend fANGLEBackend = GrGLANGLEBackend::kUnknown;
306 GrGLVendor fANGLEVendor = GrGLVendor::kOther;
307 GrGLRenderer fANGLERenderer = GrGLRenderer::kOther;
308 GrGLDriver fANGLEDriver = GrGLDriver::kUnknown;
309 GrGLDriverVersion fANGLEDriverVersion = GR_GL_DRIVER_UNKNOWN_VER;
310
311 GrGLVendor fWebGLVendor = GrGLVendor::kOther;
312 GrGLRenderer fWebGLRenderer = GrGLRenderer::kOther;
313
314 // Are we running over the Chrome interprocess command buffer?
315 bool fIsOverCommandBuffer = false;
316
317 // Running over virgl guest driver.
318 bool fIsRunningOverVirgl = false;
319 };
320
321 GrGLDriverInfo GrGLGetDriverInfo(const GrGLInterface*);
322
323 /**
324 * Helpers for glGetError()
325 */
326
327 void GrGLCheckErr(const GrGLInterface* gl,
328 const char* location,
329 const char* call);
330
331 ////////////////////////////////////////////////////////////////////////////////
332
333 /**
334 * GR_STRING makes a string of X where X is expanded before conversion to a string
335 * if X itself contains macros.
336 */
337 #define GR_STRING(X) GR_STRING_IMPL(X)
338 #define GR_STRING_IMPL(X) #X
339
340 /**
341 * Creates a string of the form "<filename>(<linenumber>) : "
342 */
343 #define GR_FILE_AND_LINE_STR __FILE__ "(" GR_STRING(__LINE__) ") : "
344
345 /**
346 * Macros for using GrGLInterface to make GL calls
347 */
348
349 // Conditionally checks glGetError based on compile-time and run-time flags.
350 #if GR_GL_CHECK_ERROR
351 extern bool gCheckErrorGL;
352 #define GR_GL_CHECK_ERROR_IMPL(IFACE, X) \
353 do { \
354 if (gCheckErrorGL) { \
355 IFACE->checkError(GR_FILE_AND_LINE_STR, #X); \
356 } \
357 } while (false)
358 #else
359 #define GR_GL_CHECK_ERROR_IMPL(IFACE, X) \
360 do { \
361 } while (false)
362 #endif
363
364 // internal macro to conditionally log the gl call using SkDebugf based on
365 // compile-time and run-time flags.
366 #if GR_GL_LOG_CALLS
367 extern bool gLogCallsGL;
368 #define GR_GL_LOG_CALLS_IMPL(X) \
369 if (gLogCallsGL) \
370 SkDebugf(GR_FILE_AND_LINE_STR "GL: " #X "\n")
371 #else
372 #define GR_GL_LOG_CALLS_IMPL(X)
373 #endif
374
375 // makes a GL call on the interface and does any error checking and logging
376 #define GR_GL_CALL(IFACE, X) \
377 do { \
378 GR_GL_CALL_NOERRCHECK(IFACE, X); \
379 GR_GL_CHECK_ERROR_IMPL(IFACE, X); \
380 } while (false)
381
382 // Variant of above that always skips the error check. This is useful when
383 // the caller wants to do its own glGetError() call and examine the error value.
384 #define GR_GL_CALL_NOERRCHECK(IFACE, X) \
385 do { \
386 (IFACE)->fFunctions.f##X; \
387 GR_GL_LOG_CALLS_IMPL(X); \
388 } while (false)
389
390 // same as GR_GL_CALL but stores the return value of the gl call in RET
391 #define GR_GL_CALL_RET(IFACE, RET, X) \
392 do { \
393 GR_GL_CALL_RET_NOERRCHECK(IFACE, RET, X); \
394 GR_GL_CHECK_ERROR_IMPL(IFACE, X); \
395 } while (false)
396
397 // same as GR_GL_CALL_RET but always skips the error check.
398 #define GR_GL_CALL_RET_NOERRCHECK(IFACE, RET, X) \
399 do { \
400 (RET) = (IFACE)->fFunctions.f##X; \
401 GR_GL_LOG_CALLS_IMPL(X); \
402 } while (false)
403
GrGLFormatFromGLEnum(GrGLenum glFormat)404 static constexpr GrGLFormat GrGLFormatFromGLEnum(GrGLenum glFormat) {
405 switch (glFormat) {
406 case GR_GL_RGBA8: return GrGLFormat::kRGBA8;
407 case GR_GL_R8: return GrGLFormat::kR8;
408 case GR_GL_ALPHA8: return GrGLFormat::kALPHA8;
409 case GR_GL_LUMINANCE8: return GrGLFormat::kLUMINANCE8;
410 case GR_GL_LUMINANCE8_ALPHA8: return GrGLFormat::kLUMINANCE8_ALPHA8;
411 case GR_GL_BGRA8: return GrGLFormat::kBGRA8;
412 case GR_GL_RGB565: return GrGLFormat::kRGB565;
413 case GR_GL_RGBA16F: return GrGLFormat::kRGBA16F;
414 case GR_GL_LUMINANCE16F: return GrGLFormat::kLUMINANCE16F;
415 case GR_GL_R16F: return GrGLFormat::kR16F;
416 case GR_GL_RGB8: return GrGLFormat::kRGB8;
417 case GR_GL_RGBX8: return GrGLFormat::kRGBX8;
418 case GR_GL_RG8: return GrGLFormat::kRG8;
419 case GR_GL_RGB10_A2: return GrGLFormat::kRGB10_A2;
420 case GR_GL_RGBA4: return GrGLFormat::kRGBA4;
421 case GR_GL_SRGB8_ALPHA8: return GrGLFormat::kSRGB8_ALPHA8;
422 case GR_GL_COMPRESSED_ETC1_RGB8: return GrGLFormat::kCOMPRESSED_ETC1_RGB8;
423 case GR_GL_COMPRESSED_RGB8_ETC2: return GrGLFormat::kCOMPRESSED_RGB8_ETC2;
424 case GR_GL_COMPRESSED_RGB_S3TC_DXT1_EXT: return GrGLFormat::kCOMPRESSED_RGB8_BC1;
425 case GR_GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: return GrGLFormat::kCOMPRESSED_RGBA8_BC1;
426 case GR_GL_R16: return GrGLFormat::kR16;
427 case GR_GL_RG16: return GrGLFormat::kRG16;
428 case GR_GL_RGBA16: return GrGLFormat::kRGBA16;
429 case GR_GL_RG16F: return GrGLFormat::kRG16F;
430 case GR_GL_STENCIL_INDEX8: return GrGLFormat::kSTENCIL_INDEX8;
431 case GR_GL_STENCIL_INDEX16: return GrGLFormat::kSTENCIL_INDEX16;
432 case GR_GL_DEPTH24_STENCIL8: return GrGLFormat::kDEPTH24_STENCIL8;
433
434
435 default: return GrGLFormat::kUnknown;
436 }
437 }
438
439 /** Returns either the sized internal format or compressed internal format of the GrGLFormat. */
GrGLFormatToEnum(GrGLFormat format)440 static constexpr GrGLenum GrGLFormatToEnum(GrGLFormat format) {
441 switch (format) {
442 case GrGLFormat::kRGBA8: return GR_GL_RGBA8;
443 case GrGLFormat::kR8: return GR_GL_R8;
444 case GrGLFormat::kALPHA8: return GR_GL_ALPHA8;
445 case GrGLFormat::kLUMINANCE8: return GR_GL_LUMINANCE8;
446 case GrGLFormat::kLUMINANCE8_ALPHA8: return GR_GL_LUMINANCE8_ALPHA8;
447 case GrGLFormat::kBGRA8: return GR_GL_BGRA8;
448 case GrGLFormat::kRGB565: return GR_GL_RGB565;
449 case GrGLFormat::kRGBA16F: return GR_GL_RGBA16F;
450 case GrGLFormat::kLUMINANCE16F: return GR_GL_LUMINANCE16F;
451 case GrGLFormat::kR16F: return GR_GL_R16F;
452 case GrGLFormat::kRGB8: return GR_GL_RGB8;
453 case GrGLFormat::kRGBX8: return GR_GL_RGBX8;
454 case GrGLFormat::kRG8: return GR_GL_RG8;
455 case GrGLFormat::kRGB10_A2: return GR_GL_RGB10_A2;
456 case GrGLFormat::kRGBA4: return GR_GL_RGBA4;
457 case GrGLFormat::kSRGB8_ALPHA8: return GR_GL_SRGB8_ALPHA8;
458 case GrGLFormat::kCOMPRESSED_ETC1_RGB8: return GR_GL_COMPRESSED_ETC1_RGB8;
459 case GrGLFormat::kCOMPRESSED_RGB8_ETC2: return GR_GL_COMPRESSED_RGB8_ETC2;
460 case GrGLFormat::kCOMPRESSED_RGB8_BC1: return GR_GL_COMPRESSED_RGB_S3TC_DXT1_EXT;
461 case GrGLFormat::kCOMPRESSED_RGBA8_BC1: return GR_GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
462 case GrGLFormat::kR16: return GR_GL_R16;
463 case GrGLFormat::kRG16: return GR_GL_RG16;
464 case GrGLFormat::kRGBA16: return GR_GL_RGBA16;
465 case GrGLFormat::kRG16F: return GR_GL_RG16F;
466 case GrGLFormat::kSTENCIL_INDEX8: return GR_GL_STENCIL_INDEX8;
467 case GrGLFormat::kSTENCIL_INDEX16: return GR_GL_STENCIL_INDEX16;
468 case GrGLFormat::kDEPTH24_STENCIL8: return GR_GL_DEPTH24_STENCIL8;
469 case GrGLFormat::kUnknown: return 0;
470 }
471 SkUNREACHABLE;
472 }
473
GrGLFormatBytesPerBlock(GrGLFormat format)474 static constexpr size_t GrGLFormatBytesPerBlock(GrGLFormat format) {
475 switch (format) {
476 case GrGLFormat::kRGBA8: return 4;
477 case GrGLFormat::kR8: return 1;
478 case GrGLFormat::kALPHA8: return 1;
479 case GrGLFormat::kLUMINANCE8: return 1;
480 case GrGLFormat::kLUMINANCE8_ALPHA8: return 2;
481 case GrGLFormat::kBGRA8: return 4;
482 case GrGLFormat::kRGB565: return 2;
483 case GrGLFormat::kRGBA16F: return 8;
484 case GrGLFormat::kLUMINANCE16F: return 2;
485 case GrGLFormat::kR16F: return 2;
486 // We assume the GPU stores this format 4 byte aligned
487 case GrGLFormat::kRGB8: return 4;
488 case GrGLFormat::kRGBX8: return 4;
489 case GrGLFormat::kRG8: return 2;
490 case GrGLFormat::kRGB10_A2: return 4;
491 case GrGLFormat::kRGBA4: return 2;
492 case GrGLFormat::kSRGB8_ALPHA8: return 4;
493 case GrGLFormat::kCOMPRESSED_ETC1_RGB8: return 8;
494 case GrGLFormat::kCOMPRESSED_RGB8_ETC2: return 8;
495 case GrGLFormat::kCOMPRESSED_RGB8_BC1: return 8;
496 case GrGLFormat::kCOMPRESSED_RGBA8_BC1: return 8;
497 case GrGLFormat::kR16: return 2;
498 case GrGLFormat::kRG16: return 4;
499 case GrGLFormat::kRGBA16: return 8;
500 case GrGLFormat::kRG16F: return 4;
501 case GrGLFormat::kSTENCIL_INDEX8: return 1;
502 case GrGLFormat::kSTENCIL_INDEX16: return 2;
503 case GrGLFormat::kDEPTH24_STENCIL8: return 4;
504 case GrGLFormat::kUnknown: return 0;
505 }
506 SkUNREACHABLE;
507 }
508
GrGLFormatStencilBits(GrGLFormat format)509 static constexpr int GrGLFormatStencilBits(GrGLFormat format) {
510 switch (format) {
511 case GrGLFormat::kSTENCIL_INDEX8:
512 return 8;
513 case GrGLFormat::kSTENCIL_INDEX16:
514 return 16;
515 case GrGLFormat::kDEPTH24_STENCIL8:
516 return 8;
517 case GrGLFormat::kCOMPRESSED_ETC1_RGB8:
518 case GrGLFormat::kCOMPRESSED_RGB8_ETC2:
519 case GrGLFormat::kCOMPRESSED_RGB8_BC1:
520 case GrGLFormat::kCOMPRESSED_RGBA8_BC1:
521 case GrGLFormat::kRGBA8:
522 case GrGLFormat::kR8:
523 case GrGLFormat::kALPHA8:
524 case GrGLFormat::kLUMINANCE8:
525 case GrGLFormat::kLUMINANCE8_ALPHA8:
526 case GrGLFormat::kBGRA8:
527 case GrGLFormat::kRGB565:
528 case GrGLFormat::kRGBA16F:
529 case GrGLFormat::kR16F:
530 case GrGLFormat::kLUMINANCE16F:
531 case GrGLFormat::kRGB8:
532 case GrGLFormat::kRGBX8:
533 case GrGLFormat::kRG8:
534 case GrGLFormat::kRGB10_A2:
535 case GrGLFormat::kRGBA4:
536 case GrGLFormat::kSRGB8_ALPHA8:
537 case GrGLFormat::kR16:
538 case GrGLFormat::kRG16:
539 case GrGLFormat::kRGBA16:
540 case GrGLFormat::kRG16F:
541 case GrGLFormat::kUnknown:
542 return 0;
543 }
544 SkUNREACHABLE;
545 }
546
GrGLFormatIsPackedDepthStencil(GrGLFormat format)547 static constexpr bool GrGLFormatIsPackedDepthStencil(GrGLFormat format) {
548 switch (format) {
549 case GrGLFormat::kDEPTH24_STENCIL8:
550 return true;
551 case GrGLFormat::kCOMPRESSED_ETC1_RGB8:
552 case GrGLFormat::kCOMPRESSED_RGB8_ETC2:
553 case GrGLFormat::kCOMPRESSED_RGB8_BC1:
554 case GrGLFormat::kCOMPRESSED_RGBA8_BC1:
555 case GrGLFormat::kRGBA8:
556 case GrGLFormat::kR8:
557 case GrGLFormat::kALPHA8:
558 case GrGLFormat::kLUMINANCE8:
559 case GrGLFormat::kLUMINANCE8_ALPHA8:
560 case GrGLFormat::kBGRA8:
561 case GrGLFormat::kRGB565:
562 case GrGLFormat::kRGBA16F:
563 case GrGLFormat::kR16F:
564 case GrGLFormat::kLUMINANCE16F:
565 case GrGLFormat::kRGB8:
566 case GrGLFormat::kRGBX8:
567 case GrGLFormat::kRG8:
568 case GrGLFormat::kRGB10_A2:
569 case GrGLFormat::kRGBA4:
570 case GrGLFormat::kSRGB8_ALPHA8:
571 case GrGLFormat::kR16:
572 case GrGLFormat::kRG16:
573 case GrGLFormat::kRGBA16:
574 case GrGLFormat::kRG16F:
575 case GrGLFormat::kSTENCIL_INDEX8:
576 case GrGLFormat::kSTENCIL_INDEX16:
577 case GrGLFormat::kUnknown:
578 return false;
579 }
580 SkUNREACHABLE;
581 }
582
GrGLFormatIsSRGB(GrGLFormat format)583 static constexpr bool GrGLFormatIsSRGB(GrGLFormat format) {
584 switch (format) {
585 case GrGLFormat::kSRGB8_ALPHA8:
586 return true;
587 case GrGLFormat::kCOMPRESSED_ETC1_RGB8:
588 case GrGLFormat::kCOMPRESSED_RGB8_ETC2:
589 case GrGLFormat::kCOMPRESSED_RGB8_BC1:
590 case GrGLFormat::kCOMPRESSED_RGBA8_BC1:
591 case GrGLFormat::kRGBA8:
592 case GrGLFormat::kR8:
593 case GrGLFormat::kALPHA8:
594 case GrGLFormat::kLUMINANCE8:
595 case GrGLFormat::kLUMINANCE8_ALPHA8:
596 case GrGLFormat::kBGRA8:
597 case GrGLFormat::kRGB565:
598 case GrGLFormat::kRGBA16F:
599 case GrGLFormat::kR16F:
600 case GrGLFormat::kLUMINANCE16F:
601 case GrGLFormat::kRGB8:
602 case GrGLFormat::kRGBX8:
603 case GrGLFormat::kRG8:
604 case GrGLFormat::kRGB10_A2:
605 case GrGLFormat::kRGBA4:
606 case GrGLFormat::kR16:
607 case GrGLFormat::kRG16:
608 case GrGLFormat::kRGBA16:
609 case GrGLFormat::kRG16F:
610 case GrGLFormat::kSTENCIL_INDEX8:
611 case GrGLFormat::kSTENCIL_INDEX16:
612 case GrGLFormat::kDEPTH24_STENCIL8:
613 case GrGLFormat::kUnknown:
614 return false;
615 }
616 SkUNREACHABLE;
617 }
618
619 #if defined(SK_DEBUG) || GR_TEST_UTILS
GrGLFormatToStr(GrGLenum glFormat)620 static constexpr const char* GrGLFormatToStr(GrGLenum glFormat) {
621 switch (glFormat) {
622 case GR_GL_RGBA8: return "RGBA8";
623 case GR_GL_R8: return "R8";
624 case GR_GL_ALPHA8: return "ALPHA8";
625 case GR_GL_LUMINANCE8: return "LUMINANCE8";
626 case GR_GL_LUMINANCE8_ALPHA8: return "LUMINANCE8_ALPHA8";
627 case GR_GL_BGRA8: return "BGRA8";
628 case GR_GL_RGB565: return "RGB565";
629 case GR_GL_RGBA16F: return "RGBA16F";
630 case GR_GL_LUMINANCE16F: return "LUMINANCE16F";
631 case GR_GL_R16F: return "R16F";
632 case GR_GL_RGB8: return "RGB8";
633 case GR_GL_RG8: return "RG8";
634 case GR_GL_RGB10_A2: return "RGB10_A2";
635 case GR_GL_RGBA4: return "RGBA4";
636 case GR_GL_RGBA32F: return "RGBA32F";
637 case GR_GL_SRGB8_ALPHA8: return "SRGB8_ALPHA8";
638 case GR_GL_COMPRESSED_ETC1_RGB8: return "ETC1";
639 case GR_GL_COMPRESSED_RGB8_ETC2: return "ETC2";
640 case GR_GL_COMPRESSED_RGB_S3TC_DXT1_EXT: return "RGB8_BC1";
641 case GR_GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: return "RGBA8_BC1";
642 case GR_GL_R16: return "R16";
643 case GR_GL_RG16: return "RG16";
644 case GR_GL_RGBA16: return "RGBA16";
645 case GR_GL_RG16F: return "RG16F";
646 case GR_GL_STENCIL_INDEX8: return "STENCIL_INDEX8";
647 case GR_GL_STENCIL_INDEX16: return "STENCIL_INDEX16";
648 case GR_GL_DEPTH24_STENCIL8: return "DEPTH24_STENCIL8";
649
650 default: return "Unknown";
651 }
652 }
653 #endif
654
655 GrGLenum GrToGLStencilFunc(GrStencilTest test);
656
657 /**
658 * Returns true if the format is compressed.
659 */
660 bool GrGLFormatIsCompressed(GrGLFormat);
661
662 #endif
663