1 /*
2 * Copyright 2015 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 #include "include/core/SkPixmap.h"
9
10 #include "include/core/SkBitmap.h"
11 #include "include/core/SkData.h"
12 #include "include/core/SkSurface.h"
13 #include "include/core/SkUnPreMultiply.h"
14 #include "include/private/SkColorData.h"
15 #include "include/private/SkHalf.h"
16 #include "include/private/SkImageInfoPriv.h"
17 #include "include/private/SkNx.h"
18 #include "include/private/SkTPin.h"
19 #include "include/private/SkTemplates.h"
20 #include "include/private/SkTo.h"
21 #include "src/core/SkConvertPixels.h"
22 #include "src/core/SkDraw.h"
23 #include "src/core/SkMask.h"
24 #include "src/core/SkMatrixProvider.h"
25 #include "src/core/SkPixmapPriv.h"
26 #include "src/core/SkRasterClip.h"
27 #include "src/core/SkUtils.h"
28 #include "src/image/SkReadPixelsRec.h"
29 #include "src/shaders/SkImageShader.h"
30
31 #include <utility>
32
33 /////////////////////////////////////////////////////////////////////////////////////////////////
34
reset()35 void SkPixmap::reset() {
36 fPixels = nullptr;
37 fRowBytes = 0;
38 fInfo = SkImageInfo::MakeUnknown();
39 }
40
reset(const SkImageInfo & info,const void * addr,size_t rowBytes)41 void SkPixmap::reset(const SkImageInfo& info, const void* addr, size_t rowBytes) {
42 if (addr) {
43 SkASSERT(info.validRowBytes(rowBytes));
44 }
45 fPixels = addr;
46 fRowBytes = rowBytes;
47 fInfo = info;
48 }
49
reset(const SkMask & src)50 bool SkPixmap::reset(const SkMask& src) {
51 if (SkMask::kA8_Format == src.fFormat) {
52 this->reset(SkImageInfo::MakeA8(src.fBounds.width(), src.fBounds.height()),
53 src.fImage, src.fRowBytes);
54 return true;
55 }
56 this->reset();
57 return false;
58 }
59
setColorSpace(sk_sp<SkColorSpace> cs)60 void SkPixmap::setColorSpace(sk_sp<SkColorSpace> cs) {
61 fInfo = fInfo.makeColorSpace(std::move(cs));
62 }
63
extractSubset(SkPixmap * result,const SkIRect & subset) const64 bool SkPixmap::extractSubset(SkPixmap* result, const SkIRect& subset) const {
65 SkIRect srcRect, r;
66 srcRect.setWH(this->width(), this->height());
67 if (!r.intersect(srcRect, subset)) {
68 return false; // r is empty (i.e. no intersection)
69 }
70
71 // If the upper left of the rectangle was outside the bounds of this SkBitmap, we should have
72 // exited above.
73 SkASSERT(static_cast<unsigned>(r.fLeft) < static_cast<unsigned>(this->width()));
74 SkASSERT(static_cast<unsigned>(r.fTop) < static_cast<unsigned>(this->height()));
75
76 const void* pixels = nullptr;
77 if (fPixels) {
78 const size_t bpp = fInfo.bytesPerPixel();
79 pixels = (const uint8_t*)fPixels + r.fTop * fRowBytes + r.fLeft * bpp;
80 }
81 result->reset(fInfo.makeDimensions(r.size()), pixels, fRowBytes);
82 return true;
83 }
84
85 // This is the same as SkPixmap::addr(x,y), but this version gets inlined, while the public
86 // method does not. Perhaps we could bloat it so it can be inlined, but that would grow code-size
87 // everywhere, instead of just here (on behalf of getAlphaf()).
fast_getaddr(const SkPixmap & pm,int x,int y)88 static const void* fast_getaddr(const SkPixmap& pm, int x, int y) {
89 x <<= SkColorTypeShiftPerPixel(pm.colorType());
90 return static_cast<const char*>(pm.addr()) + y * pm.rowBytes() + x;
91 }
92
getAlphaf(int x,int y) const93 float SkPixmap::getAlphaf(int x, int y) const {
94 SkASSERT(this->addr());
95 SkASSERT((unsigned)x < (unsigned)this->width());
96 SkASSERT((unsigned)y < (unsigned)this->height());
97
98 float value = 0;
99 const void* srcPtr = fast_getaddr(*this, x, y);
100
101 switch (this->colorType()) {
102 case kUnknown_SkColorType:
103 return 0;
104 case kGray_8_SkColorType:
105 case kR8G8_unorm_SkColorType:
106 case kR16G16_unorm_SkColorType:
107 case kR16G16_float_SkColorType:
108 case kRGB_565_SkColorType:
109 case kRGB_888x_SkColorType:
110 case kRGB_101010x_SkColorType:
111 case kBGR_101010x_SkColorType:
112 return 1;
113 case kAlpha_8_SkColorType:
114 value = static_cast<const uint8_t*>(srcPtr)[0] * (1.0f/255);
115 break;
116 case kA16_unorm_SkColorType:
117 value = static_cast<const uint16_t*>(srcPtr)[0] * (1.0f/65535);
118 break;
119 case kA16_float_SkColorType: {
120 SkHalf half = static_cast<const SkHalf*>(srcPtr)[0];
121 value = SkHalfToFloat(half);
122 break;
123 }
124 case kARGB_4444_SkColorType: {
125 uint16_t u16 = static_cast<const uint16_t*>(srcPtr)[0];
126 value = SkGetPackedA4444(u16) * (1.0f/15);
127 break;
128 }
129 case kRGBA_8888_SkColorType:
130 case kBGRA_8888_SkColorType:
131 value = static_cast<const uint8_t*>(srcPtr)[3] * (1.0f/255);
132 break;
133 case kRGBA_1010102_SkColorType:
134 case kBGRA_1010102_SkColorType: {
135 uint32_t u32 = static_cast<const uint32_t*>(srcPtr)[0];
136 value = (u32 >> 30) * (1.0f/3);
137 break;
138 }
139 case kR16G16B16A16_unorm_SkColorType: {
140 uint64_t u64 = static_cast<const uint64_t*>(srcPtr)[0];
141 value = (u64 >> 48) * (1.0f/65535);
142 break;
143 }
144 case kRGBA_F16Norm_SkColorType:
145 case kRGBA_F16_SkColorType: {
146 uint64_t px;
147 memcpy(&px, srcPtr, sizeof(px));
148 value = SkHalfToFloat_finite_ftz(px)[3];
149 break;
150 }
151 case kRGBA_F32_SkColorType:
152 value = static_cast<const float*>(srcPtr)[3];
153 break;
154 }
155 return value;
156 }
157
readPixels(const SkImageInfo & dstInfo,void * dstPixels,size_t dstRB,int x,int y) const158 bool SkPixmap::readPixels(const SkImageInfo& dstInfo, void* dstPixels, size_t dstRB,
159 int x, int y) const {
160 if (!SkImageInfoValidConversion(dstInfo, fInfo)) {
161 return false;
162 }
163
164 SkReadPixelsRec rec(dstInfo, dstPixels, dstRB, x, y);
165 if (!rec.trim(fInfo.width(), fInfo.height())) {
166 return false;
167 }
168
169 const void* srcPixels = this->addr(rec.fX, rec.fY);
170 const SkImageInfo srcInfo = fInfo.makeDimensions(rec.fInfo.dimensions());
171 return SkConvertPixels(rec.fInfo, rec.fPixels, rec.fRowBytes, srcInfo, srcPixels,
172 this->rowBytes());
173 }
174
erase(SkColor color,const SkIRect & subset) const175 bool SkPixmap::erase(SkColor color, const SkIRect& subset) const {
176 return this->erase(SkColor4f::FromColor(color), &subset);
177 }
178
erase(const SkColor4f & color,SkColorSpace * cs,const SkIRect * subset) const179 bool SkPixmap::erase(const SkColor4f& color, SkColorSpace* cs, const SkIRect* subset) const {
180 SkPaint paint;
181 paint.setBlendMode(SkBlendMode::kSrc);
182 paint.setColor4f(color, cs);
183
184 SkIRect clip = this->bounds();
185 if (subset && !clip.intersect(*subset)) {
186 return false;
187 }
188 SkRasterClip rc{clip};
189
190 SkDraw draw;
191 SkSimpleMatrixProvider matrixProvider(SkMatrix::I());
192 draw.fDst = *this;
193 draw.fMatrixProvider = &matrixProvider;
194 draw.fRC = &rc;
195
196 draw.drawPaint(paint);
197 return true;
198 }
199
scalePixels(const SkPixmap & actualDst,const SkSamplingOptions & sampling) const200 bool SkPixmap::scalePixels(const SkPixmap& actualDst, const SkSamplingOptions& sampling) const {
201 // We may need to tweak how we interpret these just a little below, so we make copies.
202 SkPixmap src = *this,
203 dst = actualDst;
204
205 // Can't do anthing with empty src or dst
206 if (src.width() <= 0 || src.height() <= 0 ||
207 dst.width() <= 0 || dst.height() <= 0) {
208 return false;
209 }
210
211 // no scaling involved?
212 if (src.width() == dst.width() && src.height() == dst.height()) {
213 return src.readPixels(dst);
214 }
215
216 // If src and dst are both unpremul, we'll fake the source out to appear as if premul,
217 // and mark the destination as opaque. This odd combination allows us to scale unpremul
218 // pixels without ever premultiplying them (perhaps losing information in the color channels).
219 // This is an idiosyncratic feature of scalePixels(), and is tested by scalepixels_unpremul GM.
220 bool clampAsIfUnpremul = false;
221 if (src.alphaType() == kUnpremul_SkAlphaType &&
222 dst.alphaType() == kUnpremul_SkAlphaType) {
223 src.reset(src.info().makeAlphaType(kPremul_SkAlphaType), src.addr(), src.rowBytes());
224 dst.reset(dst.info().makeAlphaType(kOpaque_SkAlphaType), dst.addr(), dst.rowBytes());
225
226 // We'll need to tell the image shader to clamp to [0,1] instead of the
227 // usual [0,a] when using a bicubic scaling (kHigh_SkFilterQuality).
228 clampAsIfUnpremul = true;
229 }
230
231 SkBitmap bitmap;
232 if (!bitmap.installPixels(src)) {
233 return false;
234 }
235 bitmap.setImmutable(); // Don't copy when we create an image.
236
237 SkMatrix scale = SkMatrix::RectToRect(SkRect::Make(src.bounds()), SkRect::Make(dst.bounds()));
238
239 sk_sp<SkShader> shader = SkImageShader::Make(bitmap.asImage(),
240 SkTileMode::kClamp,
241 SkTileMode::kClamp,
242 sampling,
243 &scale,
244 clampAsIfUnpremul);
245
246 sk_sp<SkSurface> surface = SkSurface::MakeRasterDirect(dst.info(),
247 dst.writable_addr(),
248 dst.rowBytes());
249 if (!shader || !surface) {
250 return false;
251 }
252
253 SkPaint paint;
254 paint.setBlendMode(SkBlendMode::kSrc);
255 paint.setShader(std::move(shader));
256 surface->getCanvas()->drawPaint(paint);
257 return true;
258 }
259
260 //////////////////////////////////////////////////////////////////////////////////////////////////
261
getColor(int x,int y) const262 SkColor SkPixmap::getColor(int x, int y) const {
263 SkASSERT(this->addr());
264 SkASSERT((unsigned)x < (unsigned)this->width());
265 SkASSERT((unsigned)y < (unsigned)this->height());
266
267 const bool needsUnpremul = (kPremul_SkAlphaType == fInfo.alphaType());
268 auto toColor = [needsUnpremul](uint32_t maybePremulColor) {
269 return needsUnpremul ? SkUnPreMultiply::PMColorToColor(maybePremulColor)
270 : SkSwizzle_BGRA_to_PMColor(maybePremulColor);
271 };
272
273 switch (this->colorType()) {
274 case kGray_8_SkColorType: {
275 uint8_t value = *this->addr8(x, y);
276 return SkColorSetRGB(value, value, value);
277 }
278 case kAlpha_8_SkColorType: {
279 return SkColorSetA(0, *this->addr8(x, y));
280 }
281 case kA16_unorm_SkColorType: {
282 uint16_t value = *this->addr16(x, y);
283 return SkColorSetA(0, value * (255 / 65535.0f));
284 }
285 case kA16_float_SkColorType: {
286 SkHalf value = *this->addr16(x, y);
287 return SkColorSetA(0, 255 * SkHalfToFloat(value));
288 }
289 case kRGB_565_SkColorType: {
290 return SkPixel16ToColor(*this->addr16(x, y));
291 }
292 case kARGB_4444_SkColorType: {
293 uint16_t value = *this->addr16(x, y);
294 SkPMColor c = SkPixel4444ToPixel32(value);
295 return toColor(c);
296 }
297 case kR8G8_unorm_SkColorType: {
298 uint16_t value = *this->addr16(x, y);
299 return (uint32_t)( ((value >> 0) & 0xff) ) << 16
300 | (uint32_t)( ((value >> 8) & 0xff) ) << 8
301 | 0xff000000;
302 }
303 case kR16G16_unorm_SkColorType: {
304 uint32_t value = *this->addr32(x, y);
305 return (uint32_t)( ((value >> 0) & 0xffff) * (255/65535.0f) ) << 16
306 | (uint32_t)( ((value >> 16) & 0xffff) * (255/65535.0f) ) << 8
307 | 0xff000000;
308 }
309 case kR16G16_float_SkColorType: {
310 uint32_t value = *this->addr32(x, y);
311 uint32_t r = 255 * SkHalfToFloat((value >> 0) & 0xffff);
312 uint32_t g = 255 * SkHalfToFloat((value >> 16) & 0xffff);
313 return (r << 16) | (g << 8) | 0xff000000;
314 }
315 case kRGB_888x_SkColorType: {
316 uint32_t value = *this->addr32(x, y);
317 return SkSwizzle_RB(value | 0xff000000);
318 }
319 case kBGRA_8888_SkColorType: {
320 uint32_t value = *this->addr32(x, y);
321 SkPMColor c = SkSwizzle_BGRA_to_PMColor(value);
322 return toColor(c);
323 }
324 case kRGBA_8888_SkColorType: {
325 uint32_t value = *this->addr32(x, y);
326 SkPMColor c = SkSwizzle_RGBA_to_PMColor(value);
327 return toColor(c);
328 }
329 case kRGB_101010x_SkColorType: {
330 uint32_t value = *this->addr32(x, y);
331 // Convert 10-bit rgb to 8-bit bgr, and mask in 0xff alpha at the top.
332 return (uint32_t)( ((value >> 0) & 0x3ff) * (255/1023.0f) ) << 16
333 | (uint32_t)( ((value >> 10) & 0x3ff) * (255/1023.0f) ) << 8
334 | (uint32_t)( ((value >> 20) & 0x3ff) * (255/1023.0f) ) << 0
335 | 0xff000000;
336 }
337 case kBGR_101010x_SkColorType: {
338 uint32_t value = *this->addr32(x, y);
339 // Convert 10-bit bgr to 8-bit bgr, and mask in 0xff alpha at the top.
340 return (uint32_t)( ((value >> 0) & 0x3ff) * (255/1023.0f) ) << 0
341 | (uint32_t)( ((value >> 10) & 0x3ff) * (255/1023.0f) ) << 8
342 | (uint32_t)( ((value >> 20) & 0x3ff) * (255/1023.0f) ) << 16
343 | 0xff000000;
344 }
345 case kRGBA_1010102_SkColorType:
346 case kBGRA_1010102_SkColorType: {
347 uint32_t value = *this->addr32(x, y);
348
349 float r = ((value >> 0) & 0x3ff) * (1/1023.0f),
350 g = ((value >> 10) & 0x3ff) * (1/1023.0f),
351 b = ((value >> 20) & 0x3ff) * (1/1023.0f),
352 a = ((value >> 30) & 0x3 ) * (1/ 3.0f);
353 if (this->colorType() == kBGRA_1010102_SkColorType) {
354 std::swap(r,b);
355 }
356 if (a != 0 && needsUnpremul) {
357 r = SkTPin(r/a, 0.0f, 1.0f);
358 g = SkTPin(g/a, 0.0f, 1.0f);
359 b = SkTPin(b/a, 0.0f, 1.0f);
360 }
361 return (uint32_t)( r * 255.0f ) << 16
362 | (uint32_t)( g * 255.0f ) << 8
363 | (uint32_t)( b * 255.0f ) << 0
364 | (uint32_t)( a * 255.0f ) << 24;
365 }
366 case kR16G16B16A16_unorm_SkColorType: {
367 uint64_t value = *this->addr64(x, y);
368
369 float r = ((value ) & 0xffff) * (1/65535.0f),
370 g = ((value >> 16) & 0xffff) * (1/65535.0f),
371 b = ((value >> 32) & 0xffff) * (1/65535.0f),
372 a = ((value >> 48) & 0xffff) * (1/65535.0f);
373 if (a != 0 && needsUnpremul) {
374 r *= (1.0f/a);
375 g *= (1.0f/a);
376 b *= (1.0f/a);
377 }
378 return (uint32_t)( r * 255.0f ) << 16
379 | (uint32_t)( g * 255.0f ) << 8
380 | (uint32_t)( b * 255.0f ) << 0
381 | (uint32_t)( a * 255.0f ) << 24;
382 }
383 case kRGBA_F16Norm_SkColorType:
384 case kRGBA_F16_SkColorType: {
385 const uint64_t* addr =
386 (const uint64_t*)fPixels + y * (fRowBytes >> 3) + x;
387 Sk4f p4 = SkHalfToFloat_finite_ftz(*addr);
388 if (p4[3] && needsUnpremul) {
389 float inva = 1 / p4[3];
390 p4 = p4 * Sk4f(inva, inva, inva, 1);
391 }
392 SkColor c;
393 SkNx_cast<uint8_t>(p4 * Sk4f(255) + Sk4f(0.5f)).store(&c);
394 // p4 is RGBA, but we want BGRA, so we need to swap next
395 return SkSwizzle_RB(c);
396 }
397 case kRGBA_F32_SkColorType: {
398 const float* rgba =
399 (const float*)fPixels + 4*y*(fRowBytes >> 4) + 4*x;
400 Sk4f p4 = Sk4f::Load(rgba);
401 // From here on, just like F16:
402 if (p4[3] && needsUnpremul) {
403 float inva = 1 / p4[3];
404 p4 = p4 * Sk4f(inva, inva, inva, 1);
405 }
406 SkColor c;
407 SkNx_cast<uint8_t>(p4 * Sk4f(255) + Sk4f(0.5f)).store(&c);
408 // p4 is RGBA, but we want BGRA, so we need to swap next
409 return SkSwizzle_RB(c);
410 }
411 case kUnknown_SkColorType:
412 break;
413 }
414 SkDEBUGFAIL("");
415 return SkColorSetARGB(0, 0, 0, 0);
416 }
417
computeIsOpaque() const418 bool SkPixmap::computeIsOpaque() const {
419 const int height = this->height();
420 const int width = this->width();
421
422 switch (this->colorType()) {
423 case kAlpha_8_SkColorType: {
424 unsigned a = 0xFF;
425 for (int y = 0; y < height; ++y) {
426 const uint8_t* row = this->addr8(0, y);
427 for (int x = 0; x < width; ++x) {
428 a &= row[x];
429 }
430 if (0xFF != a) {
431 return false;
432 }
433 }
434 return true;
435 }
436 case kA16_unorm_SkColorType: {
437 unsigned a = 0xFFFF;
438 for (int y = 0; y < height; ++y) {
439 const uint16_t* row = this->addr16(0, y);
440 for (int x = 0; x < width; ++x) {
441 a &= row[x];
442 }
443 if (0xFFFF != a) {
444 return false;
445 }
446 }
447 return true;
448 }
449 case kA16_float_SkColorType: {
450 for (int y = 0; y < height; ++y) {
451 const SkHalf* row = this->addr16(0, y);
452 for (int x = 0; x < width; ++x) {
453 if (row[x] < SK_Half1) {
454 return false;
455 }
456 }
457 }
458 return true;
459 }
460 case kRGB_565_SkColorType:
461 case kGray_8_SkColorType:
462 case kR8G8_unorm_SkColorType:
463 case kR16G16_unorm_SkColorType:
464 case kR16G16_float_SkColorType:
465 case kRGB_888x_SkColorType:
466 case kRGB_101010x_SkColorType:
467 case kBGR_101010x_SkColorType:
468 return true;
469 break;
470 case kARGB_4444_SkColorType: {
471 unsigned c = 0xFFFF;
472 for (int y = 0; y < height; ++y) {
473 const SkPMColor16* row = this->addr16(0, y);
474 for (int x = 0; x < width; ++x) {
475 c &= row[x];
476 }
477 if (0xF != SkGetPackedA4444(c)) {
478 return false;
479 }
480 }
481 return true;
482 }
483 case kBGRA_8888_SkColorType:
484 case kRGBA_8888_SkColorType: {
485 SkPMColor c = (SkPMColor)~0;
486 for (int y = 0; y < height; ++y) {
487 const SkPMColor* row = this->addr32(0, y);
488 for (int x = 0; x < width; ++x) {
489 c &= row[x];
490 }
491 if (0xFF != SkGetPackedA32(c)) {
492 return false;
493 }
494 }
495 return true;
496 }
497 case kRGBA_F16Norm_SkColorType:
498 case kRGBA_F16_SkColorType: {
499 const SkHalf* row = (const SkHalf*)this->addr();
500 for (int y = 0; y < height; ++y) {
501 for (int x = 0; x < width; ++x) {
502 if (row[4 * x + 3] < SK_Half1) {
503 return false;
504 }
505 }
506 row += this->rowBytes() >> 1;
507 }
508 return true;
509 }
510 case kRGBA_F32_SkColorType: {
511 const float* row = (const float*)this->addr();
512 for (int y = 0; y < height; ++y) {
513 for (int x = 0; x < width; ++x) {
514 if (row[4 * x + 3] < 1.0f) {
515 return false;
516 }
517 }
518 row += this->rowBytes() >> 2;
519 }
520 return true;
521 }
522 case kRGBA_1010102_SkColorType:
523 case kBGRA_1010102_SkColorType: {
524 uint32_t c = ~0;
525 for (int y = 0; y < height; ++y) {
526 const uint32_t* row = this->addr32(0, y);
527 for (int x = 0; x < width; ++x) {
528 c &= row[x];
529 }
530 if (0b11 != c >> 30) {
531 return false;
532 }
533 }
534 return true;
535 }
536 case kR16G16B16A16_unorm_SkColorType: {
537 uint16_t acc = 0xFFFF;
538 for (int y = 0; y < height; ++y) {
539 const uint64_t* row = this->addr64(0, y);
540 for (int x = 0; x < width; ++x) {
541 acc &= (row[x] >> 48);
542 }
543 if (0xFFFF != acc) {
544 return false;
545 }
546 }
547 return true;
548 }
549 case kUnknown_SkColorType:
550 SkDEBUGFAIL("");
551 break;
552 }
553 return false;
554 }
555
556 //////////////////////////////////////////////////////////////////////////////////////////////////
557
draw_orientation(const SkPixmap & dst,const SkPixmap & src,SkEncodedOrigin origin)558 static bool draw_orientation(const SkPixmap& dst, const SkPixmap& src, SkEncodedOrigin origin) {
559 auto surf = SkSurface::MakeRasterDirect(dst.info(), dst.writable_addr(), dst.rowBytes());
560 if (!surf) {
561 return false;
562 }
563
564 SkBitmap bm;
565 bm.installPixels(src);
566
567 SkMatrix m = SkEncodedOriginToMatrix(origin, dst.width(), dst.height());
568
569 SkPaint p;
570 p.setBlendMode(SkBlendMode::kSrc);
571 surf->getCanvas()->concat(m);
572 surf->getCanvas()->drawImage(SkImage::MakeFromBitmap(bm), 0, 0, SkSamplingOptions(), &p);
573 return true;
574 }
575
Orient(const SkPixmap & dst,const SkPixmap & src,SkEncodedOrigin origin)576 bool SkPixmapPriv::Orient(const SkPixmap& dst, const SkPixmap& src, SkEncodedOrigin origin) {
577 if (src.colorType() != dst.colorType()) {
578 return false;
579 }
580 // note: we just ignore alphaType and colorSpace for this transformation
581
582 int w = src.width();
583 int h = src.height();
584 if (SkEncodedOriginSwapsWidthHeight(origin)) {
585 using std::swap;
586 swap(w, h);
587 }
588 if (dst.width() != w || dst.height() != h) {
589 return false;
590 }
591 if (w == 0 || h == 0) {
592 return true;
593 }
594
595 // check for aliasing to self
596 if (src.addr() == dst.addr()) {
597 return kTopLeft_SkEncodedOrigin == origin;
598 }
599 return draw_orientation(dst, src, origin);
600 }
601
SwapWidthHeight(const SkImageInfo & info)602 SkImageInfo SkPixmapPriv::SwapWidthHeight(const SkImageInfo& info) {
603 return info.makeWH(info.height(), info.width());
604 }
605
606