static sk_sp<SkData> make_3Dlut(int* cubeDimension, bool invR, bool invG, bool invB) {
int size = 4 << R(5);
auto data = SkData::MakeUninitialized(sizeof(SkColor) * size * size * size);
SkColor* pixels = (SkColor*)(data->writable_data());
SkAutoTMalloc<uint8_t> lutMemory(size);
SkAutoTMalloc<uint8_t> invLutMemory(size);
uint8_t* lut = lutMemory.get();
uint8_t* invLut = invLutMemory.get();
const int maxIndex = size - 1;
for (int i = 0; i < size; i++) {
lut[i] = (i * 255) / maxIndex;
invLut[i] = ((maxIndex - i) * 255) / maxIndex;
}
for (int r = 0; r < size; ++r) {
for (int g = 0; g < size; ++g) {
for (int b = 0; b < size; ++b) {
pixels[(size * ((size * b) + g)) + r] = SkColorSetARGB(0xFF,
invR ? invLut[r] : lut[r],
invG ? invLut[g] : lut[g],
invB ? invLut[b] : lut[b]);
}
}
}
if (cubeDimension) {
*cubeDimension = size;
}
return data;
}
sk_sp<SkImage> SkImageMakeRasterCopyAndAssignColorSpace(const SkImage* src,
SkColorSpace* colorSpace) {
// Read the pixels out of the source image, with no conversion
SkImageInfo info = as_IB(src)->onImageInfo();
if (kUnknown_SkColorType == info.colorType()) {
SkDEBUGFAIL("Unexpected color type");
return nullptr;
}
size_t rowBytes = info.minRowBytes();
size_t size = info.computeByteSize(rowBytes);
if (SkImageInfo::ByteSizeOverflowed(size)) {
return nullptr;
}
auto data = SkData::MakeUninitialized(size);
if (!data) {
return nullptr;
}
SkPixmap pm(info, data->writable_data(), rowBytes);
if (!src->readPixels(pm, 0, 0, SkImage::kDisallow_CachingHint)) {
return nullptr;
}
// Wrap them in a new image with a different color space
return SkImage::MakeRasterData(info.makeColorSpace(sk_ref_sp(colorSpace)), data, rowBytes);
}
SkData* SkValidatingSerializeFlattenable(SkFlattenable* flattenable) {
SkWriteBuffer writer;
writer.writeFlattenable(flattenable);
size_t size = writer.bytesWritten();
auto data = SkData::MakeUninitialized(size);
writer.writeToMemory(data->writable_data());
return data.release();
}
sk_sp<SkData> SkFlattenable::serialize(const SkSerialProcs* procs) const {
SkBinaryWriteBuffer writer;
if (procs) {
writer.setSerialProcs(*procs);
}
writer.writeFlattenable(this);
size_t size = writer.bytesWritten();
auto data = SkData::MakeUninitialized(size);
writer.writeToMemory(data->writable_data());
return data;
}
sk_sp<SkImage> SkImage::makeNonTextureImage() const {
if (!this->isTextureBacked()) {
return sk_ref_sp(const_cast<SkImage*>(this));
}
SkImageInfo info = as_IB(this)->onImageInfo();
size_t rowBytes = info.minRowBytes();
size_t size = info.getSafeSize(rowBytes);
auto data = SkData::MakeUninitialized(size);
if (!data) {
return nullptr;
}
SkPixmap pm(info, data->writable_data(), rowBytes);
if (!this->readPixels(pm, 0, 0, kDisallow_CachingHint)) {
return nullptr;
}
return MakeRasterData(info, data, rowBytes);
}
// SkCodec's wbmp decoder was initially unnecessarily restrictive.
// It required the second byte to be zero. The wbmp specification allows
// a couple of bits to be 1 (so long as they do not overlap with 0x9F).
// Test that SkCodec now supports an image with these bits set.
DEF_TEST(Codec_wbmp, r) {
const char* path = "mandrill.wbmp";
SkAutoTDelete<SkStream> stream(resource(path));
if (!stream) {
SkDebugf("Missing resource '%s'\n", path);
return;
}
// Modify the stream to contain a second byte with some bits set.
auto data = SkCopyStreamToData(stream);
uint8_t* writeableData = static_cast<uint8_t*>(data->writable_data());
writeableData[1] = static_cast<uint8_t>(~0x9F);
// SkCodec should support this.
SkAutoTDelete<SkCodec> codec(SkCodec::NewFromData(data.get()));
REPORTER_ASSERT(r, codec);
if (!codec) {
return;
}
test_info(r, codec.get(), codec->getInfo(), SkCodec::kSuccess, nullptr);
}
