static void generate_bitmap_texture_desc(const SkBitmap& bitmap, GrSurfaceDesc* desc) {
desc->fFlags = kNone_GrSurfaceFlags;
desc->fWidth = bitmap.width();
desc->fHeight = bitmap.height();
desc->fConfig = SkImageInfo2GrPixelConfig(bitmap.info());
desc->fSampleCnt = 0;
}
static void make_texture_desc(const SkImageInfo& info, GrSurfaceDesc* desc) {
desc->fFlags = kNone_GrSurfaceFlags;
desc->fWidth = info.width();
desc->fHeight = info.height();
desc->fConfig = SkImageInfo2GrPixelConfig(info);
desc->fSampleCnt = 0;
}
bool SkImage_Gpu::onReadPixels(const SkImageInfo& info, void* pixels, size_t rowBytes,
int srcX, int srcY, CachingHint) const {
GrPixelConfig config = SkImageInfo2GrPixelConfig(info, *fTexture->getContext()->caps());
uint32_t flags = 0;
if (kUnpremul_SkAlphaType == info.alphaType() && kPremul_SkAlphaType == fAlphaType) {
// let the GPU perform this transformation for us
flags = GrContext::kUnpremul_PixelOpsFlag;
}
if (!fTexture->readPixels(srcX, srcY, info.width(), info.height(), config,
pixels, rowBytes, flags)) {
return false;
}
// do we have to manually fix-up the alpha channel?
// src dst
// unpremul premul fix manually
// premul unpremul done by kUnpremul_PixelOpsFlag
// all other combos need to change.
//
// Should this be handled by Ganesh? todo:?
//
if (kPremul_SkAlphaType == info.alphaType() && kUnpremul_SkAlphaType == fAlphaType) {
apply_premul(info, pixels, rowBytes);
}
return true;
}
void onDraw(SkCanvas* canvas) override {
GrRenderTargetContext* renderTargetContext =
canvas->internal_private_accessTopLayerRenderTargetContext();
if (!renderTargetContext) {
skiagm::GM::DrawGpuOnlyMessage(canvas);
return;
}
GrContext* context = canvas->getGrContext();
if (!context) {
return;
}
GrProxyProvider* proxyProvider = context->contextPriv().proxyProvider();
sk_sp<GrTextureProxy> proxy[3];
for (int i = 0; i < 3; ++i) {
int index = (0 == i) ? 0 : 1;
GrSurfaceDesc desc;
desc.fWidth = fBmp[index].width();
desc.fHeight = fBmp[index].height();
desc.fConfig = SkImageInfo2GrPixelConfig(fBmp[index].info(), *context->caps());
SkASSERT(kUnknown_GrPixelConfig != desc.fConfig);
proxy[i] = proxyProvider->createTextureProxy(
desc, SkBudgeted::kYes, fBmp[index].getPixels(), fBmp[index].rowBytes());
if (!proxy[i]) {
return;
}
}
constexpr SkScalar kDrawPad = 10.f;
constexpr SkScalar kTestPad = 10.f;
constexpr SkScalar kColorSpaceOffset = 36.f;
SkISize sizes[3] = {{YSIZE, YSIZE}, {USIZE, USIZE}, {VSIZE, VSIZE}};
for (int space = kJPEG_SkYUVColorSpace; space <= kLastEnum_SkYUVColorSpace; ++space) {
SkRect renderRect =
SkRect::MakeWH(SkIntToScalar(fBmp[0].width()), SkIntToScalar(fBmp[0].height()));
renderRect.outset(kDrawPad, kDrawPad);
SkScalar y = kDrawPad + kTestPad + space * kColorSpaceOffset;
SkScalar x = kDrawPad + kTestPad;
GrPaint grPaint;
grPaint.setXPFactory(GrPorterDuffXPFactory::Get(SkBlendMode::kSrc));
auto fp = GrYUVtoRGBEffect::Make(proxy[0], proxy[1], proxy[2], sizes,
static_cast<SkYUVColorSpace>(space), true);
if (fp) {
SkMatrix viewMatrix;
viewMatrix.setTranslate(x, y);
grPaint.addColorFragmentProcessor(std::move(fp));
std::unique_ptr<GrDrawOp> op(GrRectOpFactory::MakeNonAAFill(
std::move(grPaint), viewMatrix, renderRect, GrAAType::kNone));
renderTargetContext->priv().testingOnly_addDrawOp(std::move(op));
}
}
}
GrSurfaceDesc GrImageInfoToSurfaceDesc(const SkImageInfo& info) {
GrSurfaceDesc desc;
desc.fFlags = kNone_GrSurfaceFlags;
desc.fWidth = info.width();
desc.fHeight = info.height();
desc.fConfig = SkImageInfo2GrPixelConfig(info);
desc.fSampleCnt = 0;
return desc;
}
GrSurfaceDesc GrImageInfoToSurfaceDesc(const SkImageInfo& info, const GrCaps& caps) {
GrSurfaceDesc desc;
desc.fFlags = kNone_GrSurfaceFlags;
desc.fOrigin = kTopLeft_GrSurfaceOrigin;
desc.fWidth = info.width();
desc.fHeight = info.height();
desc.fConfig = SkImageInfo2GrPixelConfig(info, caps);
desc.fSampleCnt = 1;
return desc;
}
static GrTexture* create_unstretched_bitmap_texture(GrContext* ctx,
const SkBitmap& origBitmap,
const GrUniqueKey& optionalKey) {
if (origBitmap.width() < ctx->caps()->minTextureSize() ||
origBitmap.height() < ctx->caps()->minTextureSize()) {
return nullptr;
}
SkBitmap tmpBitmap;
const SkBitmap* bitmap = &origBitmap;
GrSurfaceDesc desc = GrImageInfoToSurfaceDesc(bitmap->info());
const GrCaps* caps = ctx->caps();
if (kIndex_8_SkColorType == bitmap->colorType()) {
if (caps->isConfigTexturable(kIndex_8_GrPixelConfig)) {
size_t imageSize = GrCompressedFormatDataSize(kIndex_8_GrPixelConfig,
bitmap->width(), bitmap->height());
SkAutoMalloc storage(imageSize);
build_index8_data(storage.get(), origBitmap);
// our compressed data will be trimmed, so pass width() for its
// "rowBytes", since they are the same now.
return GrCreateTextureForPixels(ctx, optionalKey, desc, origBitmap.pixelRef(),
storage.get(), bitmap->width());
} else {
origBitmap.copyTo(&tmpBitmap, kN32_SkColorType);
// now bitmap points to our temp, which has been promoted to 32bits
bitmap = &tmpBitmap;
desc.fConfig = SkImageInfo2GrPixelConfig(bitmap->info());
}
} else if (!bitmap->readyToDraw()) {
// If the bitmap had compressed data and was then uncompressed, it'll still return
// compressed data on 'refEncodedData' and upload it. Probably not good, since if
// the bitmap has available pixels, then they might not be what the decompressed
// data is.
GrTexture *texture = load_etc1_texture(ctx, optionalKey, *bitmap, desc);
if (texture) {
return texture;
}
}
GrTexture *texture = load_yuv_texture(ctx, optionalKey, *bitmap, desc);
if (texture) {
return texture;
}
SkAutoLockPixels alp(*bitmap);
if (!bitmap->readyToDraw()) {
return nullptr;
}
return GrCreateTextureForPixels(ctx, optionalKey, desc, origBitmap.pixelRef(),
bitmap->getPixels(), bitmap->rowBytes());
}
sk_sp<SkSpecialSurface> onMakeSurface(const SkImageInfo& info) const override {
if (!fTexture->getContext()) {
return nullptr;
}
GrPixelConfig config = SkImageInfo2GrPixelConfig(info, *fTexture->getContext()->caps());
return SkSpecialSurface::MakeRenderTarget(fTexture->getContext(),
info.width(), info.height(),
config, sk_ref_sp(info.colorSpace()));
}
GrTexture* GrUploadBitmapToTexture(GrContext* ctx, const SkBitmap& bmp) {
SkASSERT(!bmp.getTexture());
SkBitmap tmpBitmap;
const SkBitmap* bitmap = &bmp;
GrSurfaceDesc desc = GrImageInfoToSurfaceDesc(bitmap->info());
const GrCaps* caps = ctx->caps();
if (kIndex_8_SkColorType == bitmap->colorType()) {
if (caps->isConfigTexturable(kIndex_8_GrPixelConfig)) {
size_t imageSize = GrCompressedFormatDataSize(kIndex_8_GrPixelConfig,
bitmap->width(), bitmap->height());
SkAutoMalloc storage(imageSize);
build_index8_data(storage.get(), bmp);
// our compressed data will be trimmed, so pass width() for its
// "rowBytes", since they are the same now.
return ctx->textureProvider()->createTexture(desc, true, storage.get(),
bitmap->width());
} else {
bmp.copyTo(&tmpBitmap, kN32_SkColorType);
// now bitmap points to our temp, which has been promoted to 32bits
bitmap = &tmpBitmap;
desc.fConfig = SkImageInfo2GrPixelConfig(bitmap->info());
}
} else if (!bitmap->readyToDraw()) {
// If the bitmap had compressed data and was then uncompressed, it'll still return
// compressed data on 'refEncodedData' and upload it. Probably not good, since if
// the bitmap has available pixels, then they might not be what the decompressed
// data is.
// Really?? We aren't doing this with YUV.
GrTexture *texture = load_etc1_texture(ctx, *bitmap, desc);
if (texture) {
return texture;
}
}
GrTexture *texture = create_texture_from_yuv(ctx, *bitmap, desc);
if (texture) {
return texture;
}
SkAutoLockPixels alp(*bitmap);
if (!bitmap->readyToDraw()) {
return nullptr;
}
return ctx->textureProvider()->createTexture(desc, true, bitmap->getPixels(),
bitmap->rowBytes());
}
bool SkImageCacherator::lockAsBitmap(SkBitmap* bitmap, const SkImage* client,
SkImage::CachingHint chint) {
if (this->tryLockAsBitmap(bitmap, client, chint)) {
return check_output_bitmap(*bitmap, fUniqueID);
}
#if SK_SUPPORT_GPU
// Try to get a texture and read it back to raster (and then cache that with our ID)
SkAutoTUnref<GrTexture> tex;
{
ScopedGenerator generator(this);
SkIRect subset = SkIRect::MakeXYWH(fOrigin.x(), fOrigin.y(), fInfo.width(), fInfo.height());
tex.reset(generator->generateTexture(nullptr, &subset));
}
if (!tex) {
bitmap->reset();
return false;
}
if (!bitmap->tryAllocPixels(fInfo)) {
bitmap->reset();
return false;
}
const uint32_t pixelOpsFlags = 0;
if (!tex->readPixels(0, 0, bitmap->width(), bitmap->height(), SkImageInfo2GrPixelConfig(fInfo),
bitmap->getPixels(), bitmap->rowBytes(), pixelOpsFlags)) {
bitmap->reset();
return false;
}
bitmap->pixelRef()->setImmutableWithID(fUniqueID);
if (SkImage::kAllow_CachingHint == chint) {
SkBitmapCache::Add(fUniqueID, *bitmap);
if (client) {
as_IB(client)->notifyAddedToCache();
}
}
return check_output_bitmap(*bitmap, fUniqueID);
#else
return false;
#endif
}
static SkGrPixelRef* copy_to_new_texture_pixelref(GrTexture* texture, SkColorType dstCT,
SkColorProfileType dstPT, const SkIRect* subset) {
if (NULL == texture || kUnknown_SkColorType == dstCT) {
return NULL;
}
GrContext* context = texture->getContext();
if (NULL == context) {
return NULL;
}
GrSurfaceDesc desc;
SkIRect srcRect;
if (!subset) {
desc.fWidth = texture->width();
desc.fHeight = texture->height();
srcRect = SkIRect::MakeWH(texture->width(), texture->height());
} else {
SkASSERT(SkIRect::MakeWH(texture->width(), texture->height()).contains(*subset));
// Create a new texture that is the size of subset.
desc.fWidth = subset->width();
desc.fHeight = subset->height();
srcRect = *subset;
}
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fConfig = SkImageInfo2GrPixelConfig(dstCT, kPremul_SkAlphaType, dstPT);
GrTexture* dst = context->createTexture(desc, false, NULL, 0);
if (NULL == dst) {
return NULL;
}
// Blink is relying on the above copy being sent to GL immediately in the case when the source
// is a WebGL canvas backing store. We could have a TODO to remove this flush flag, but we have
// a larger TODO to remove SkGrPixelRef entirely.
context->copySurface(dst->asRenderTarget(), texture, srcRect, SkIPoint::Make(0,0),
GrContext::kFlushWrites_PixelOp);
SkImageInfo info = SkImageInfo::Make(desc.fWidth, desc.fHeight, dstCT, kPremul_SkAlphaType,
dstPT);
SkGrPixelRef* pixelRef = SkNEW_ARGS(SkGrPixelRef, (info, dst));
SkSafeUnref(dst);
return pixelRef;
}
bool SkImageCacherator::lockAsBitmap(SkBitmap* bitmap) {
const uint32_t uniqueID = fGenerator->uniqueID();
if (this->tryLockAsBitmap(bitmap)) {
return check_output_bitmap(*bitmap, uniqueID);
}
#if SK_SUPPORT_GPU
// Try to get a texture and read it back to raster (and then cache that with our ID)
SkAutoTUnref<GrTexture> tex(fGenerator->generateTexture(nullptr, kUntiled_SkImageUsageType));
if (!tex) {
bitmap->reset();
return false;
}
const SkImageInfo& info = this->info();
if (!bitmap->tryAllocPixels(info)) {
bitmap->reset();
return false;
}
const uint32_t pixelOpsFlags = 0;
if (!tex->readPixels(0, 0, bitmap->width(), bitmap->height(), SkImageInfo2GrPixelConfig(info),
bitmap->getPixels(), bitmap->rowBytes(), pixelOpsFlags)) {
bitmap->reset();
return false;
}
bitmap->pixelRef()->setImmutableWithID(uniqueID);
SkBitmapCache::Add(uniqueID, *bitmap);
return check_output_bitmap(*bitmap, uniqueID);
#else
return false;
#endif
}
void HelloWorldWindow::draw(SkCanvas* canvas) {
drawContents(canvas);
// in case we have queued drawing calls
fContext->flush();
// Invalidate the window to force a redraw. Poor man's animation mechanism.
this->inval(NULL);
if (kRaster_DeviceType == fType) {
// need to send the raster bits to the (gpu) window
SkImage* snap = fSurface->newImageSnapshot();
size_t rowBytes;
SkImageInfo info;
const void* pixels = snap->peekPixels(&info, &rowBytes);
fRenderTarget->writePixels(0, 0, snap->width(), snap->height(),
SkImageInfo2GrPixelConfig(info.colorType(),
info.alphaType(),
info.profileType()),
pixels,
rowBytes,
GrContext::kFlushWrites_PixelOp);
SkSafeUnref(snap);
}
INHERITED::present();
}
int GrTextureStripAtlas::lockRow(const SkBitmap& data) {
VALIDATE;
if (0 == fLockedRows) {
this->lockTexture();
if (!fTexture) {
return -1;
}
}
int key = data.getGenerationID();
int rowNumber = -1;
int index = this->searchByKey(key);
if (index >= 0) {
// We already have the data in a row, so we can just return that row
AtlasRow* row = fKeyTable[index];
if (0 == row->fLocks) {
this->removeFromLRU(row);
}
++row->fLocks;
++fLockedRows;
// Since all the rows are always stored in a contiguous array, we can save the memory
// required for storing row numbers and just compute it with some pointer arithmetic
rowNumber = static_cast<int>(row - fRows);
} else {
// ~index is the index where we will insert the new key to keep things sorted
index = ~index;
// We don't have this data cached, so pick the least recently used row to copy into
AtlasRow* row = this->getLRU();
++fLockedRows;
if (nullptr == row) {
// force a flush, which should unlock all the rows; then try again
fDesc.fContext->flush();
row = this->getLRU();
if (nullptr == row) {
--fLockedRows;
return -1;
}
}
this->removeFromLRU(row);
uint32_t oldKey = row->fKey;
// If we are writing into a row that already held bitmap data, we need to remove the
// reference to that genID which is stored in our sorted table of key values.
if (oldKey != kEmptyAtlasRowKey) {
// Find the entry in the list; if it's before the index where we plan on adding the new
// entry, we decrement since it will shift elements ahead of it back by one.
int oldIndex = this->searchByKey(oldKey);
if (oldIndex < index) {
--index;
}
fKeyTable.remove(oldIndex);
}
row->fKey = key;
row->fLocks = 1;
fKeyTable.insert(index, 1, &row);
rowNumber = static_cast<int>(row - fRows);
SkAutoLockPixels lock(data);
// Pass in the kDontFlush flag, since we know we're writing to a part of this texture
// that is not currently in use
fTexture->writePixels(0, rowNumber * fDesc.fRowHeight,
fDesc.fWidth, fDesc.fRowHeight,
SkImageInfo2GrPixelConfig(data.info(), *this->getContext()->caps()),
data.getPixels(),
data.rowBytes(),
GrContext::kDontFlush_PixelOpsFlag);
}
SkASSERT(rowNumber >= 0);
VALIDATE;
return rowNumber;
}
static GrTexture* create_unstretched_bitmap_texture(GrContext* ctx,
const SkBitmap& origBitmap,
const GrUniqueKey& optionalKey) {
if (origBitmap.width() < ctx->caps()->minTextureSize() ||
origBitmap.height() < ctx->caps()->minTextureSize()) {
return NULL;
}
SkBitmap tmpBitmap;
const SkBitmap* bitmap = &origBitmap;
GrSurfaceDesc desc;
generate_bitmap_texture_desc(*bitmap, &desc);
const GrCaps* caps = ctx->caps();
if (kIndex_8_SkColorType == bitmap->colorType()) {
if (caps->isConfigTexturable(kIndex_8_GrPixelConfig)) {
size_t imageSize = GrCompressedFormatDataSize(kIndex_8_GrPixelConfig,
bitmap->width(), bitmap->height());
SkAutoMalloc storage(imageSize);
build_index8_data(storage.get(), origBitmap);
// our compressed data will be trimmed, so pass width() for its
// "rowBytes", since they are the same now.
return create_texture_for_bmp(ctx, optionalKey, desc, origBitmap.pixelRef(),
storage.get(), bitmap->width());
} else {
origBitmap.copyTo(&tmpBitmap, kN32_SkColorType);
// now bitmap points to our temp, which has been promoted to 32bits
bitmap = &tmpBitmap;
desc.fConfig = SkImageInfo2GrPixelConfig(bitmap->info());
}
}
// Is this an ETC1 encoded texture?
#ifndef SK_IGNORE_ETC1_SUPPORT
// Make sure that the underlying device supports ETC1 textures before we go ahead
// and check the data.
else if (caps->isConfigTexturable(kETC1_GrPixelConfig)
// If the bitmap had compressed data and was then uncompressed, it'll still return
// compressed data on 'refEncodedData' and upload it. Probably not good, since if
// the bitmap has available pixels, then they might not be what the decompressed
// data is.
&& !(bitmap->readyToDraw())) {
GrTexture *texture = load_etc1_texture(ctx, optionalKey, *bitmap, desc);
if (texture) {
return texture;
}
}
#endif // SK_IGNORE_ETC1_SUPPORT
GrTexture *texture = load_yuv_texture(ctx, optionalKey, *bitmap, desc);
if (texture) {
return texture;
}
SkAutoLockPixels alp(*bitmap);
if (!bitmap->readyToDraw()) {
return NULL;
}
return create_texture_for_bmp(ctx, optionalKey, desc, origBitmap.pixelRef(),
bitmap->getPixels(), bitmap->rowBytes());
}
GrPixelConfig SkImageInfo2GrPixelConfig(const SkImageInfo& info, const GrCaps& caps) {
return SkImageInfo2GrPixelConfig(info.colorType(), info.colorSpace(), caps);
}
