static bool convert_texture(GrTexture* src, GrDrawContext* dst, int dstW, int dstH,
SkYUVColorSpace colorSpace, MakeFPProc proc) {
SkScalar xScale = SkIntToScalar(src->width()) / dstW / src->width();
SkScalar yScale = SkIntToScalar(src->height()) / dstH / src->height();
GrTextureParams::FilterMode filter;
if (dstW == src->width() && dstW == src->height()) {
filter = GrTextureParams::kNone_FilterMode;
} else {
filter = GrTextureParams::kBilerp_FilterMode;
}
sk_sp<GrFragmentProcessor> fp(
GrSimpleTextureEffect::Make(src, SkMatrix::MakeScale(xScale, yScale), filter));
if (!fp) {
return false;
}
fp = proc(std::move(fp), colorSpace);
if (!fp) {
return false;
}
GrPaint paint;
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
paint.addColorFragmentProcessor(std::move(fp));
dst->drawRect(GrNoClip(), paint, SkMatrix::I(), SkRect::MakeIWH(dstW, dstH));
return true;
}
sk_sp<SkImage> SkImage_Gpu::onMakeColorSpace(sk_sp<SkColorSpace> colorSpace) const {
sk_sp<SkColorSpace> srcSpace = fColorSpace ? fColorSpace : SkColorSpace::MakeSRGB();
auto xform = GrNonlinearColorSpaceXformEffect::Make(srcSpace.get(), colorSpace.get());
if (!xform) {
return sk_ref_sp(const_cast<SkImage_Gpu*>(this));
}
sk_sp<GrRenderTargetContext> renderTargetContext(fContext->makeRenderTargetContext(
SkBackingFit::kExact, this->width(), this->height(), kRGBA_8888_GrPixelConfig, nullptr));
if (!renderTargetContext) {
return nullptr;
}
GrPaint paint;
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
paint.addColorTextureProcessor(fContext->resourceProvider(), fProxy, nullptr, SkMatrix::I());
paint.addColorFragmentProcessor(std::move(xform));
const SkRect rect = SkRect::MakeIWH(this->width(), this->height());
renderTargetContext->drawRect(GrNoClip(), std::move(paint), GrAA::kNo, SkMatrix::I(), rect);
if (!renderTargetContext->asTextureProxy()) {
return nullptr;
}
// MDB: this call is okay bc we know 'renderTargetContext' was exact
return sk_make_sp<SkImage_Gpu>(fContext, kNeedNewImageUniqueID,
fAlphaType, renderTargetContext->asTextureProxyRef(),
std::move(colorSpace), fBudgeted);
}
static void convolve_gaussian_2d(GrDrawContext* drawContext,
const GrClip& clip,
const SkIRect& dstRect,
const SkIPoint& srcOffset,
GrTexture* texture,
int radiusX,
int radiusY,
SkScalar sigmaX,
SkScalar sigmaY,
const SkIRect* srcBounds) {
SkMatrix localMatrix = SkMatrix::MakeTrans(-SkIntToScalar(srcOffset.x()),
-SkIntToScalar(srcOffset.y()));
SkISize size = SkISize::Make(2 * radiusX + 1, 2 * radiusY + 1);
SkIPoint kernelOffset = SkIPoint::Make(radiusX, radiusY);
GrPaint paint;
paint.setGammaCorrect(drawContext->isGammaCorrect());
SkIRect bounds = srcBounds ? *srcBounds : SkIRect::EmptyIRect();
sk_sp<GrFragmentProcessor> conv(GrMatrixConvolutionEffect::MakeGaussian(
texture, bounds, size, 1.0, 0.0, kernelOffset,
srcBounds ? GrTextureDomain::kDecal_Mode : GrTextureDomain::kIgnore_Mode,
true, sigmaX, sigmaY));
paint.addColorFragmentProcessor(std::move(conv));
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
drawContext->fillRectWithLocalMatrix(clip, paint, SkMatrix::I(),
SkRect::Make(dstRect), localMatrix);
}
sk_sp<SkSpecialImage> SkImageFilter::DrawWithFP(GrContext* context,
sk_sp<GrFragmentProcessor> fp,
const SkIRect& bounds) {
GrPaint paint;
paint.addColorFragmentProcessor(fp.get());
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
GrSurfaceDesc desc;
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fWidth = bounds.width();
desc.fHeight = bounds.height();
desc.fConfig = kRGBA_8888_GrPixelConfig;
sk_sp<GrTexture> dst(context->textureProvider()->createApproxTexture(desc));
if (!dst) {
return nullptr;
}
sk_sp<GrDrawContext> drawContext(context->drawContext(sk_ref_sp(dst->asRenderTarget())));
if (!drawContext) {
return nullptr;
}
SkRect srcRect = SkRect::Make(bounds);
SkRect dstRect = SkRect::MakeWH(srcRect.width(), srcRect.height());
GrClip clip(dstRect);
drawContext->fillRectToRect(clip, paint, SkMatrix::I(), dstRect, srcRect);
return SkSpecialImage::MakeFromGpu(SkIRect::MakeWH(bounds.width(), bounds.height()),
kNeedNewImageUniqueID_SpecialImage,
std::move(dst));
}
static void convolve_gaussian_2d(GrDrawContext* drawContext,
const GrClip& clip,
const SkRect& dstRect,
const SkPoint& srcOffset,
GrTexture* texture,
int radiusX,
int radiusY,
SkScalar sigmaX,
SkScalar sigmaY,
const SkRect* srcBounds) {
SkMatrix localMatrix = SkMatrix::MakeTrans(-srcOffset.x(), -srcOffset.y());
SkISize size = SkISize::Make(2 * radiusX + 1, 2 * radiusY + 1);
SkIPoint kernelOffset = SkIPoint::Make(radiusX, radiusY);
GrPaint paint;
SkIRect bounds;
if (srcBounds) {
srcBounds->roundOut(&bounds);
} else {
bounds.setEmpty();
}
SkAutoTUnref<GrFragmentProcessor> conv(GrMatrixConvolutionEffect::CreateGaussian(
texture, bounds, size, 1.0, 0.0, kernelOffset,
srcBounds ? GrTextureDomain::kDecal_Mode : GrTextureDomain::kIgnore_Mode,
true, sigmaX, sigmaY));
paint.addColorFragmentProcessor(conv);
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
drawContext->fillRectWithLocalMatrix(clip, paint, SkMatrix::I(), dstRect, localMatrix);
}
sk_sp<SkSpecialImage> SkImageFilter::DrawWithFP(GrContext* context,
sk_sp<GrFragmentProcessor> fp,
const SkIRect& bounds,
sk_sp<SkColorSpace> colorSpace) {
GrPaint paint;
paint.addColorFragmentProcessor(std::move(fp));
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
sk_sp<GrDrawContext> drawContext(context->makeDrawContext(SkBackingFit::kApprox,
bounds.width(), bounds.height(),
kRGBA_8888_GrPixelConfig,
std::move(colorSpace)));
if (!drawContext) {
return nullptr;
}
SkIRect dstIRect = SkIRect::MakeWH(bounds.width(), bounds.height());
SkRect srcRect = SkRect::Make(bounds);
SkRect dstRect = SkRect::MakeWH(srcRect.width(), srcRect.height());
GrFixedClip clip(dstIRect);
drawContext->fillRectToRect(clip, paint, SkMatrix::I(), dstRect, srcRect);
return SkSpecialImage::MakeFromGpu(dstIRect, kNeedNewImageUniqueID_SpecialImage,
drawContext->asTexture(),
sk_ref_sp(drawContext->getColorSpace()));
}
bool SkImageFilter::filterImageGPU(Proxy* proxy, const SkBitmap& src, const Context& ctx,
SkBitmap* result, SkIPoint* offset) const {
#if SK_SUPPORT_GPU
SkBitmap input = src;
SkASSERT(fInputCount == 1);
SkIPoint srcOffset = SkIPoint::Make(0, 0);
if (!this->filterInputGPU(0, proxy, src, ctx, &input, &srcOffset)) {
return false;
}
GrTexture* srcTexture = input.getTexture();
SkIRect bounds;
if (!this->applyCropRect(ctx, proxy, input, &srcOffset, &bounds, &input)) {
return false;
}
SkRect srcRect = SkRect::Make(bounds);
SkRect dstRect = SkRect::MakeWH(srcRect.width(), srcRect.height());
GrContext* context = srcTexture->getContext();
GrSurfaceDesc desc;
desc.fFlags = kRenderTarget_GrSurfaceFlag,
desc.fWidth = bounds.width();
desc.fHeight = bounds.height();
desc.fConfig = kRGBA_8888_GrPixelConfig;
SkAutoTUnref<GrTexture> dst(context->textureProvider()->createTexture(desc,
GrTextureProvider::FromImageFilter(ctx.sizeConstraint())));
if (!dst) {
return false;
}
// setup new clip
GrClip clip(dstRect);
GrFragmentProcessor* fp;
offset->fX = bounds.left();
offset->fY = bounds.top();
bounds.offset(-srcOffset);
SkMatrix matrix(ctx.ctm());
matrix.postTranslate(SkIntToScalar(-bounds.left()), SkIntToScalar(-bounds.top()));
GrPaint paint;
if (this->asFragmentProcessor(&fp, srcTexture, matrix, bounds)) {
SkASSERT(fp);
paint.addColorFragmentProcessor(fp)->unref();
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
SkAutoTUnref<GrDrawContext> drawContext(context->drawContext(dst->asRenderTarget()));
if (drawContext) {
drawContext->fillRectToRect(clip, paint, SkMatrix::I(), dstRect, srcRect);
WrapTexture(dst, bounds.width(), bounds.height(), result);
return true;
}
}
#endif
return false;
}
sk_sp<GrTextureProxy> GrTextureProducer::CopyOnGpu(GrContext* context,
sk_sp<GrTextureProxy> inputProxy,
const CopyParams& copyParams,
bool dstWillRequireMipMaps) {
SkASSERT(context);
const SkRect dstRect = SkRect::MakeIWH(copyParams.fWidth, copyParams.fHeight);
GrMipMapped mipMapped = dstWillRequireMipMaps ? GrMipMapped::kYes : GrMipMapped::kNo;
SkRect localRect = SkRect::MakeWH(inputProxy->width(), inputProxy->height());
bool needsDomain = false;
bool resizing = false;
if (copyParams.fFilter != GrSamplerState::Filter::kNearest) {
bool resizing = localRect.width() != dstRect.width() ||
localRect.height() != dstRect.height();
needsDomain = resizing && !GrProxyProvider::IsFunctionallyExact(inputProxy.get());
}
if (copyParams.fFilter == GrSamplerState::Filter::kNearest && !needsDomain && !resizing &&
dstWillRequireMipMaps) {
sk_sp<GrTextureProxy> proxy = GrCopyBaseMipMapToTextureProxy(context, inputProxy.get());
if (proxy) {
return proxy;
}
}
sk_sp<GrRenderTargetContext> copyRTC =
context->contextPriv().makeDeferredRenderTargetContextWithFallback(
SkBackingFit::kExact, dstRect.width(), dstRect.height(), inputProxy->config(),
nullptr, 1, mipMapped, inputProxy->origin());
if (!copyRTC) {
return nullptr;
}
GrPaint paint;
if (needsDomain) {
const SkRect domain = localRect.makeInset(0.5f, 0.5f);
// This would cause us to read values from outside the subset. Surely, the caller knows
// better!
SkASSERT(copyParams.fFilter != GrSamplerState::Filter::kMipMap);
paint.addColorFragmentProcessor(
GrTextureDomainEffect::Make(std::move(inputProxy), SkMatrix::I(), domain,
GrTextureDomain::kClamp_Mode, copyParams.fFilter));
} else {
GrSamplerState samplerState(GrSamplerState::WrapMode::kClamp, copyParams.fFilter);
paint.addColorTextureProcessor(std::move(inputProxy), SkMatrix::I(), samplerState);
}
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
copyRTC->fillRectToRect(GrNoClip(), std::move(paint), GrAA::kNo, SkMatrix::I(), dstRect,
localRect);
return copyRTC->asTextureProxyRef();
}
static void apply_morphology_rect_no_bounds(GrRenderTargetContext* renderTargetContext,
const GrClip& clip,
sk_sp<GrTextureProxy> proxy,
const SkIRect& srcRect,
const SkIRect& dstRect,
int radius,
GrMorphologyEffect::Type morphType,
GrMorphologyEffect::Direction direction) {
GrPaint paint;
paint.addColorFragmentProcessor(GrMorphologyEffect::Make(std::move(proxy),
direction, radius, morphType));
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
renderTargetContext->fillRectToRect(clip, std::move(paint), GrAA::kNo, SkMatrix::I(),
SkRect::Make(dstRect), SkRect::Make(srcRect));
}
static void apply_morphology_rect_no_bounds(GrDrawContext* drawContext,
const GrClip& clip,
GrTexture* texture,
const SkIRect& srcRect,
const SkIRect& dstRect,
int radius,
GrMorphologyEffect::MorphologyType morphType,
Gr1DKernelEffect::Direction direction) {
GrPaint paint;
paint.addColorFragmentProcessor(GrMorphologyEffect::Create(texture,
direction,
radius,
morphType))->unref();
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
drawContext->fillRectToRect(clip, paint, SkMatrix::I(), SkRect::Make(dstRect),
SkRect::Make(srcRect));
}
static void convolve_gaussian_1d(GrDrawContext* drawContext,
const GrClip& clip,
const SkRect& dstRect,
const SkPoint& srcOffset,
GrTexture* texture,
Gr1DKernelEffect::Direction direction,
int radius,
float sigma,
bool useBounds,
float bounds[2]) {
GrPaint paint;
SkAutoTUnref<GrFragmentProcessor> conv(GrConvolutionEffect::CreateGaussian(
texture, direction, radius, sigma, useBounds, bounds));
paint.addColorFragmentProcessor(conv);
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
SkMatrix localMatrix = SkMatrix::MakeTrans(-srcOffset.x(), -srcOffset.y());
drawContext->fillRectWithLocalMatrix(clip, paint, SkMatrix::I(), dstRect, localMatrix);
}
// skbug.com/5932
static void test_basic_draw_as_src(skiatest::Reporter* reporter, GrContext* context,
sk_sp<GrTextureProxy> rectProxy, uint32_t expectedPixelValues[]) {
sk_sp<GrRenderTargetContext> rtContext(context->contextPriv().makeDeferredRenderTargetContext(
SkBackingFit::kExact, rectProxy->width(),
rectProxy->height(), rectProxy->config(),
nullptr));
for (auto filter : {GrSamplerState::Filter::kNearest,
GrSamplerState::Filter::kBilerp,
GrSamplerState::Filter::kMipMap}) {
rtContext->clear(nullptr, 0xDDCCBBAA, GrRenderTargetContext::CanClearFullscreen::kYes);
auto fp = GrSimpleTextureEffect::Make(rectProxy, SkMatrix::I(), filter);
GrPaint paint;
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
paint.addColorFragmentProcessor(std::move(fp));
rtContext->drawPaint(GrNoClip(), std::move(paint), SkMatrix::I());
test_read_pixels(reporter, rtContext.get(), expectedPixelValues,
"RectangleTexture-basic-draw");
}
}
static void convolve_gaussian_1d(GrDrawContext* drawContext,
const GrClip& clip,
const SkIRect& dstRect,
const SkIPoint& srcOffset,
GrTexture* texture,
Gr1DKernelEffect::Direction direction,
int radius,
float sigma,
bool useBounds,
float bounds[2]) {
GrPaint paint;
paint.setGammaCorrect(drawContext->isGammaCorrect());
sk_sp<GrFragmentProcessor> conv(GrConvolutionEffect::MakeGaussian(
texture, direction, radius, sigma, useBounds, bounds));
paint.addColorFragmentProcessor(std::move(conv));
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
SkMatrix localMatrix = SkMatrix::MakeTrans(-SkIntToScalar(srcOffset.x()),
-SkIntToScalar(srcOffset.y()));
drawContext->fillRectWithLocalMatrix(clip, paint, SkMatrix::I(),
SkRect::Make(dstRect), localMatrix);
}
sk_sp<SkSpecialImage> SkImageFilter::DrawWithFP(GrContext* context,
sk_sp<GrFragmentProcessor> fp,
const SkIRect& bounds) {
GrPaint paint;
paint.addColorFragmentProcessor(fp.get());
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
sk_sp<GrDrawContext> drawContext(context->newDrawContext(GrContext::kLoose_BackingFit,
bounds.width(), bounds.height(),
kRGBA_8888_GrPixelConfig));
if (!drawContext) {
return nullptr;
}
SkRect srcRect = SkRect::Make(bounds);
SkRect dstRect = SkRect::MakeWH(srcRect.width(), srcRect.height());
GrClip clip(dstRect);
drawContext->fillRectToRect(clip, paint, SkMatrix::I(), dstRect, srcRect);
return SkSpecialImage::MakeFromGpu(SkIRect::MakeWH(bounds.width(), bounds.height()),
kNeedNewImageUniqueID_SpecialImage,
drawContext->asTexture());
}
sk_sp<GrTexture> GrYUVProvider::refAsTexture(GrContext* ctx,
const GrSurfaceDesc& desc,
bool useCache) {
SkYUVPlanesCache::Info yuvInfo;
void* planes[3];
YUVScoper scoper;
if (!scoper.init(this, &yuvInfo, planes, useCache)) {
return nullptr;
}
GrSurfaceDesc yuvDesc;
yuvDesc.fConfig = kAlpha_8_GrPixelConfig;
SkAutoTUnref<GrTexture> yuvTextures[3];
for (int i = 0; i < 3; i++) {
yuvDesc.fWidth = yuvInfo.fSizeInfo.fSizes[i].fWidth;
yuvDesc.fHeight = yuvInfo.fSizeInfo.fSizes[i].fHeight;
// TODO: why do we need this check?
bool needsExactTexture =
(yuvDesc.fWidth != yuvInfo.fSizeInfo.fSizes[SkYUVSizeInfo::kY].fWidth) ||
(yuvDesc.fHeight != yuvInfo.fSizeInfo.fSizes[SkYUVSizeInfo::kY].fHeight);
if (needsExactTexture) {
yuvTextures[i].reset(ctx->textureProvider()->createTexture(yuvDesc, SkBudgeted::kYes));
} else {
yuvTextures[i].reset(ctx->textureProvider()->createApproxTexture(yuvDesc));
}
if (!yuvTextures[i] ||
!yuvTextures[i]->writePixels(0, 0, yuvDesc.fWidth, yuvDesc.fHeight, yuvDesc.fConfig,
planes[i], yuvInfo.fSizeInfo.fWidthBytes[i])) {
return nullptr;
}
}
sk_sp<GrDrawContext> drawContext(ctx->newDrawContext(SkBackingFit::kExact,
desc.fWidth, desc.fHeight,
desc.fConfig, desc.fSampleCnt));
if (!drawContext) {
return nullptr;
}
GrPaint paint;
sk_sp<GrFragmentProcessor> yuvToRgbProcessor(
GrYUVEffect::MakeYUVToRGB(yuvTextures[0], yuvTextures[1], yuvTextures[2],
yuvInfo.fSizeInfo.fSizes, yuvInfo.fColorSpace, false));
paint.addColorFragmentProcessor(std::move(yuvToRgbProcessor));
// If we're decoding an sRGB image, the result of our linear math on the YUV planes is already
// in sRGB. (The encoding is just math on bytes, with no concept of color spaces.) So, we need
// to output the results of that math directly to the buffer that we will then consider sRGB.
// If we have sRGB write control, we can just tell the HW not to do the Linear -> sRGB step.
// Otherwise, we do our shader math to go from YUV -> sRGB, manually convert sRGB -> Linear,
// then let the HW convert Linear -> sRGB.
if (GrPixelConfigIsSRGB(desc.fConfig)) {
if (ctx->caps()->srgbWriteControl()) {
paint.setDisableOutputConversionToSRGB(true);
} else {
paint.addColorFragmentProcessor(GrGammaEffect::Make(2.2f));
}
}
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
const SkRect r = SkRect::MakeIWH(yuvInfo.fSizeInfo.fSizes[SkYUVSizeInfo::kY].fWidth,
yuvInfo.fSizeInfo.fSizes[SkYUVSizeInfo::kY].fHeight);
drawContext->drawRect(GrNoClip(), paint, SkMatrix::I(), r);
return drawContext->asTexture();
}
bool SkDisplacementMapEffect::filterImageGPU(Proxy* proxy, const SkBitmap& src, const Context& ctx,
SkBitmap* result, SkIPoint* offset) const {
SkBitmap colorBM = src;
SkIPoint colorOffset = SkIPoint::Make(0, 0);
if (!this->filterInputGPU(1, proxy, src, ctx, &colorBM, &colorOffset)) {
return false;
}
SkBitmap displacementBM = src;
SkIPoint displacementOffset = SkIPoint::Make(0, 0);
if (!this->filterInputGPU(0, proxy, src, ctx, &displacementBM, &displacementOffset)) {
return false;
}
SkIRect bounds;
// Since GrDisplacementMapEffect does bounds checking on color pixel access, we don't need to
// pad the color bitmap to bounds here.
if (!this->applyCropRect(ctx, colorBM, colorOffset, &bounds)) {
return false;
}
SkIRect displBounds;
if (!this->applyCropRect(ctx, proxy, displacementBM,
&displacementOffset, &displBounds, &displacementBM)) {
return false;
}
if (!bounds.intersect(displBounds)) {
return false;
}
GrTexture* color = colorBM.getTexture();
GrTexture* displacement = displacementBM.getTexture();
GrContext* context = color->getContext();
GrSurfaceDesc desc;
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fWidth = bounds.width();
desc.fHeight = bounds.height();
desc.fConfig = kSkia8888_GrPixelConfig;
auto constraint = GrTextureProvider::FromImageFilter(ctx.sizeConstraint());
SkAutoTUnref<GrTexture> dst(context->textureProvider()->createTexture(desc, constraint));
if (!dst) {
return false;
}
SkVector scale = SkVector::Make(fScale, fScale);
ctx.ctm().mapVectors(&scale, 1);
GrPaint paint;
SkMatrix offsetMatrix = GrCoordTransform::MakeDivByTextureWHMatrix(displacement);
offsetMatrix.preTranslate(SkIntToScalar(colorOffset.fX - displacementOffset.fX),
SkIntToScalar(colorOffset.fY - displacementOffset.fY));
paint.addColorFragmentProcessor(
GrDisplacementMapEffect::Create(fXChannelSelector,
fYChannelSelector,
scale,
displacement,
offsetMatrix,
color,
colorBM.dimensions()))->unref();
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
SkIRect colorBounds = bounds;
colorBounds.offset(-colorOffset);
SkMatrix matrix;
matrix.setTranslate(-SkIntToScalar(colorBounds.x()),
-SkIntToScalar(colorBounds.y()));
SkAutoTUnref<GrDrawContext> drawContext(context->drawContext(dst->asRenderTarget()));
if (!drawContext) {
return false;
}
drawContext->drawRect(GrClip::WideOpen(), paint, matrix, SkRect::Make(colorBounds));
offset->fX = bounds.left();
offset->fY = bounds.top();
WrapTexture(dst, bounds.width(), bounds.height(), result);
return true;
}
sk_sp<SkSpecialImage> SkDisplacementMapEffect::onFilterImage(SkSpecialImage* source,
const Context& ctx,
SkIPoint* offset) const {
SkIPoint colorOffset = SkIPoint::Make(0, 0);
sk_sp<SkSpecialImage> color(this->filterInput(1, source, ctx, &colorOffset));
if (!color) {
return nullptr;
}
SkIPoint displOffset = SkIPoint::Make(0, 0);
sk_sp<SkSpecialImage> displ(this->filterInput(0, source, ctx, &displOffset));
if (!displ) {
return nullptr;
}
const SkIRect srcBounds = SkIRect::MakeXYWH(colorOffset.x(), colorOffset.y(),
color->width(), color->height());
// Both paths do bounds checking on color pixel access, we don't need to
// pad the color bitmap to bounds here.
SkIRect bounds;
if (!this->applyCropRect(ctx, srcBounds, &bounds)) {
return nullptr;
}
SkIRect displBounds;
displ = this->applyCropRect(ctx, displ.get(), &displOffset, &displBounds);
if (!displ) {
return nullptr;
}
if (!bounds.intersect(displBounds)) {
return nullptr;
}
const SkIRect colorBounds = bounds.makeOffset(-colorOffset.x(), -colorOffset.y());
SkVector scale = SkVector::Make(fScale, fScale);
ctx.ctm().mapVectors(&scale, 1);
#if SK_SUPPORT_GPU
if (source->isTextureBacked()) {
GrContext* context = source->getContext();
sk_sp<GrTexture> colorTexture(color->asTextureRef(context));
sk_sp<GrTexture> displTexture(displ->asTextureRef(context));
if (!colorTexture || !displTexture) {
return nullptr;
}
GrSurfaceDesc desc;
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fWidth = bounds.width();
desc.fHeight = bounds.height();
desc.fConfig = kSkia8888_GrPixelConfig;
SkAutoTUnref<GrTexture> dst(context->textureProvider()->createApproxTexture(desc));
if (!dst) {
return nullptr;
}
GrPaint paint;
SkMatrix offsetMatrix = GrCoordTransform::MakeDivByTextureWHMatrix(displTexture.get());
offsetMatrix.preTranslate(SkIntToScalar(colorOffset.fX - displOffset.fX),
SkIntToScalar(colorOffset.fY - displOffset.fY));
paint.addColorFragmentProcessor(
GrDisplacementMapEffect::Create(fXChannelSelector,
fYChannelSelector,
scale,
displTexture.get(),
offsetMatrix,
colorTexture.get(),
SkISize::Make(color->width(),
color->height())))->unref();
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
SkMatrix matrix;
matrix.setTranslate(-SkIntToScalar(colorBounds.x()), -SkIntToScalar(colorBounds.y()));
SkAutoTUnref<GrDrawContext> drawContext(context->drawContext(dst->asRenderTarget()));
if (!drawContext) {
return nullptr;
}
drawContext->drawRect(GrClip::WideOpen(), paint, matrix, SkRect::Make(colorBounds));
offset->fX = bounds.left();
offset->fY = bounds.top();
return SkSpecialImage::MakeFromGpu(SkIRect::MakeWH(bounds.width(), bounds.height()),
kNeedNewImageUniqueID_SpecialImage,
dst);
}
#endif
SkBitmap colorBM, displBM;
if (!color->getROPixels(&colorBM) || !displ->getROPixels(&displBM)) {
return nullptr;
}
if ((colorBM.colorType() != kN32_SkColorType) ||
(displBM.colorType() != kN32_SkColorType)) {
return nullptr;
}
SkAutoLockPixels colorLock(colorBM), displLock(displBM);
if (!colorBM.getPixels() || !displBM.getPixels()) {
return nullptr;
}
SkImageInfo info = SkImageInfo::MakeN32(bounds.width(), bounds.height(),
colorBM.alphaType());
SkBitmap dst;
if (!dst.tryAllocPixels(info)) {
return nullptr;
}
SkAutoLockPixels dstLock(dst);
computeDisplacement(fXChannelSelector, fYChannelSelector, scale, &dst,
displBM, colorOffset - displOffset, colorBM, colorBounds);
offset->fX = bounds.left();
offset->fY = bounds.top();
return SkSpecialImage::MakeFromRaster(SkIRect::MakeWH(bounds.width(), bounds.height()),
dst);
}
static sk_sp<SkImage> make_from_yuv_textures_copy(GrContext* ctx, SkYUVColorSpace colorSpace,
bool nv12,
const GrBackendObject yuvTextureHandles[],
const SkISize yuvSizes[],
GrSurfaceOrigin origin,
sk_sp<SkColorSpace> imageColorSpace) {
const SkBudgeted budgeted = SkBudgeted::kYes;
if (yuvSizes[0].fWidth <= 0 || yuvSizes[0].fHeight <= 0 || yuvSizes[1].fWidth <= 0 ||
yuvSizes[1].fHeight <= 0) {
return nullptr;
}
if (!nv12 && (yuvSizes[2].fWidth <= 0 || yuvSizes[2].fHeight <= 0)) {
return nullptr;
}
const GrPixelConfig kConfig = nv12 ? kRGBA_8888_GrPixelConfig : kAlpha_8_GrPixelConfig;
GrBackendTextureDesc yDesc;
yDesc.fConfig = kConfig;
yDesc.fOrigin = origin;
yDesc.fSampleCnt = 0;
yDesc.fTextureHandle = yuvTextureHandles[0];
yDesc.fWidth = yuvSizes[0].fWidth;
yDesc.fHeight = yuvSizes[0].fHeight;
GrBackendTextureDesc uDesc;
uDesc.fConfig = kConfig;
uDesc.fOrigin = origin;
uDesc.fSampleCnt = 0;
uDesc.fTextureHandle = yuvTextureHandles[1];
uDesc.fWidth = yuvSizes[1].fWidth;
uDesc.fHeight = yuvSizes[1].fHeight;
sk_sp<GrTexture> yTex(
ctx->textureProvider()->wrapBackendTexture(yDesc, kBorrow_GrWrapOwnership));
sk_sp<GrTexture> uTex(
ctx->textureProvider()->wrapBackendTexture(uDesc, kBorrow_GrWrapOwnership));
sk_sp<GrTexture> vTex;
if (nv12) {
vTex = uTex;
} else {
GrBackendTextureDesc vDesc;
vDesc.fConfig = kConfig;
vDesc.fOrigin = origin;
vDesc.fSampleCnt = 0;
vDesc.fTextureHandle = yuvTextureHandles[2];
vDesc.fWidth = yuvSizes[2].fWidth;
vDesc.fHeight = yuvSizes[2].fHeight;
vTex = sk_sp<GrTexture>(
ctx->textureProvider()->wrapBackendTexture(vDesc, kBorrow_GrWrapOwnership));
}
if (!yTex || !uTex || !vTex) {
return nullptr;
}
const int width = yuvSizes[0].fWidth;
const int height = yuvSizes[0].fHeight;
// Needs to be a render target in order to draw to it for the yuv->rgb conversion.
sk_sp<GrRenderTargetContext> renderTargetContext(ctx->makeRenderTargetContext(
SkBackingFit::kExact,
width, height,
kRGBA_8888_GrPixelConfig,
std::move(imageColorSpace),
0,
origin));
if (!renderTargetContext) {
return nullptr;
}
GrPaint paint;
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
paint.addColorFragmentProcessor(
GrYUVEffect::MakeYUVToRGB(yTex.get(), uTex.get(), vTex.get(), yuvSizes, colorSpace, nv12));
const SkRect rect = SkRect::MakeWH(SkIntToScalar(width), SkIntToScalar(height));
renderTargetContext->drawRect(GrNoClip(), paint, SkMatrix::I(), rect);
ctx->flushSurfaceWrites(renderTargetContext->accessRenderTarget());
return sk_make_sp<SkImage_Gpu>(width, height, kNeedNewImageUniqueID,
kOpaque_SkAlphaType, renderTargetContext->asTexture(),
sk_ref_sp(renderTargetContext->getColorSpace()), budgeted);
}
bool SkXfermodeImageFilter::filterImageGPU(Proxy* proxy,
const SkBitmap& src,
const Context& ctx,
SkBitmap* result,
SkIPoint* offset) const {
SkBitmap background = src;
SkIPoint backgroundOffset = SkIPoint::Make(0, 0);
if (!this->filterInputGPU(0, proxy, src, ctx, &background, &backgroundOffset)) {
return false;
}
GrTexture* backgroundTex = background.getTexture();
if (nullptr == backgroundTex) {
SkASSERT(false);
return false;
}
SkBitmap foreground = src;
SkIPoint foregroundOffset = SkIPoint::Make(0, 0);
if (!this->filterInputGPU(1, proxy, src, ctx, &foreground, &foregroundOffset)) {
return false;
}
GrTexture* foregroundTex = foreground.getTexture();
GrContext* context = foregroundTex->getContext();
SkIRect bounds = background.bounds().makeOffset(backgroundOffset.x(), backgroundOffset.y());
bounds.join(foreground.bounds().makeOffset(foregroundOffset.x(), foregroundOffset.y()));
if (bounds.isEmpty()) {
return false;
}
const GrFragmentProcessor* xferFP = nullptr;
GrSurfaceDesc desc;
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fWidth = bounds.width();
desc.fHeight = bounds.height();
desc.fConfig = kSkia8888_GrPixelConfig;
SkAutoTUnref<GrTexture> dst(context->textureProvider()->createApproxTexture(desc));
if (!dst) {
return false;
}
GrPaint paint;
SkMatrix backgroundMatrix;
backgroundMatrix.setIDiv(backgroundTex->width(), backgroundTex->height());
backgroundMatrix.preTranslate(SkIntToScalar(-backgroundOffset.fX),
SkIntToScalar(-backgroundOffset.fY));
SkAutoTUnref<const GrFragmentProcessor> bgFP(GrTextureDomainEffect::Create(
backgroundTex, backgroundMatrix,
GrTextureDomain::MakeTexelDomain(backgroundTex, background.bounds()),
GrTextureDomain::kDecal_Mode,
GrTextureParams::kNone_FilterMode)
);
if (!fMode || !fMode->asFragmentProcessor(&xferFP, bgFP)) {
// canFilterImageGPU() should've taken care of this
SkASSERT(false);
return false;
}
SkMatrix foregroundMatrix;
foregroundMatrix.setIDiv(foregroundTex->width(), foregroundTex->height());
foregroundMatrix.preTranslate(SkIntToScalar(-foregroundOffset.fX),
SkIntToScalar(-foregroundOffset.fY));
SkAutoTUnref<const GrFragmentProcessor> foregroundFP(GrTextureDomainEffect::Create(
foregroundTex, foregroundMatrix,
GrTextureDomain::MakeTexelDomain(foregroundTex, foreground.bounds()),
GrTextureDomain::kDecal_Mode,
GrTextureParams::kNone_FilterMode)
);
paint.addColorFragmentProcessor(foregroundFP.get());
if (xferFP) {
paint.addColorFragmentProcessor(xferFP)->unref();
}
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
SkAutoTUnref<GrDrawContext> drawContext(context->drawContext(dst->asRenderTarget()));
if (!drawContext) {
return false;
}
SkMatrix matrix;
matrix.setTranslate(SkIntToScalar(-bounds.left()), SkIntToScalar(-bounds.top()));
drawContext->drawRect(GrClip::WideOpen(), paint, matrix, SkRect::Make(bounds));
offset->fX = bounds.left();
offset->fY = bounds.top();
GrWrapTextureInBitmap(dst, bounds.width(), bounds.height(), false, result);
return true;
}
GrTexture* GaussianBlur(GrContext* context,
GrTexture* srcTexture,
bool canClobberSrc,
const SkRect& dstBounds,
const SkRect* srcBounds,
float sigmaX,
float sigmaY,
GrTextureProvider::SizeConstraint constraint) {
SkASSERT(context);
SkIRect clearRect;
int scaleFactorX, radiusX;
int scaleFactorY, radiusY;
int maxTextureSize = context->caps()->maxTextureSize();
sigmaX = adjust_sigma(sigmaX, maxTextureSize, &scaleFactorX, &radiusX);
sigmaY = adjust_sigma(sigmaY, maxTextureSize, &scaleFactorY, &radiusY);
SkPoint srcOffset = SkPoint::Make(-dstBounds.x(), -dstBounds.y());
SkRect localDstBounds = SkRect::MakeWH(dstBounds.width(), dstBounds.height());
SkRect localSrcBounds;
SkRect srcRect;
if (srcBounds) {
srcRect = localSrcBounds = *srcBounds;
srcRect.offset(srcOffset);
srcBounds = &localSrcBounds;
} else {
srcRect = localDstBounds;
}
scale_rect(&srcRect, 1.0f / scaleFactorX, 1.0f / scaleFactorY);
srcRect.roundOut(&srcRect);
scale_rect(&srcRect, static_cast<float>(scaleFactorX),
static_cast<float>(scaleFactorY));
// setup new clip
GrClip clip(localDstBounds);
SkASSERT(kBGRA_8888_GrPixelConfig == srcTexture->config() ||
kRGBA_8888_GrPixelConfig == srcTexture->config() ||
kAlpha_8_GrPixelConfig == srcTexture->config());
GrSurfaceDesc desc;
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fWidth = SkScalarFloorToInt(dstBounds.width());
desc.fHeight = SkScalarFloorToInt(dstBounds.height());
desc.fConfig = srcTexture->config();
GrTexture* dstTexture;
GrTexture* tempTexture;
SkAutoTUnref<GrTexture> temp1, temp2;
temp1.reset(context->textureProvider()->createTexture(desc, constraint));
dstTexture = temp1.get();
if (canClobberSrc) {
tempTexture = srcTexture;
} else {
temp2.reset(context->textureProvider()->createTexture(desc, constraint));
tempTexture = temp2.get();
}
if (nullptr == dstTexture || nullptr == tempTexture) {
return nullptr;
}
SkAutoTUnref<GrDrawContext> srcDrawContext;
for (int i = 1; i < scaleFactorX || i < scaleFactorY; i *= 2) {
GrPaint paint;
SkMatrix matrix;
matrix.setIDiv(srcTexture->width(), srcTexture->height());
SkRect dstRect(srcRect);
if (srcBounds && i == 1) {
SkRect domain;
matrix.mapRect(&domain, *srcBounds);
domain.inset((i < scaleFactorX) ? SK_ScalarHalf / srcTexture->width() : 0.0f,
(i < scaleFactorY) ? SK_ScalarHalf / srcTexture->height() : 0.0f);
SkAutoTUnref<const GrFragmentProcessor> fp(GrTextureDomainEffect::Create(
srcTexture,
matrix,
domain,
GrTextureDomain::kDecal_Mode,
GrTextureParams::kBilerp_FilterMode));
paint.addColorFragmentProcessor(fp);
srcRect.offset(-srcOffset);
srcOffset.set(0, 0);
} else {
GrTextureParams params(SkShader::kClamp_TileMode, GrTextureParams::kBilerp_FilterMode);
paint.addColorTextureProcessor(srcTexture, matrix, params);
}
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
scale_rect(&dstRect, i < scaleFactorX ? 0.5f : 1.0f,
i < scaleFactorY ? 0.5f : 1.0f);
SkAutoTUnref<GrDrawContext> dstDrawContext(
context->drawContext(dstTexture->asRenderTarget()));
if (!dstDrawContext) {
return nullptr;
}
dstDrawContext->fillRectToRect(clip, paint, SkMatrix::I(), dstRect, srcRect);
srcDrawContext.swap(dstDrawContext);
srcRect = dstRect;
srcTexture = dstTexture;
SkTSwap(dstTexture, tempTexture);
localSrcBounds = srcRect;
}
// For really small blurs (certainly no wider than 5x5 on desktop gpus) it is faster to just
// launch a single non separable kernel vs two launches
srcRect = localDstBounds;
if (sigmaX > 0.0f && sigmaY > 0.0f &&
(2 * radiusX + 1) * (2 * radiusY + 1) <= MAX_KERNEL_SIZE) {
// We shouldn't be scaling because this is a small size blur
SkASSERT((1 == scaleFactorX) && (1 == scaleFactorY));
SkAutoTUnref<GrDrawContext> dstDrawContext(
context->drawContext(dstTexture->asRenderTarget()));
if (!dstDrawContext) {
return nullptr;
}
convolve_gaussian_2d(dstDrawContext, clip, srcRect, srcOffset,
srcTexture, radiusX, radiusY, sigmaX, sigmaY, srcBounds);
srcDrawContext.swap(dstDrawContext);
srcRect.offsetTo(0, 0);
srcTexture = dstTexture;
SkTSwap(dstTexture, tempTexture);
} else {
scale_rect(&srcRect, 1.0f / scaleFactorX, 1.0f / scaleFactorY);
srcRect.roundOut(&srcRect);
const SkIRect srcIRect = srcRect.roundOut();
if (sigmaX > 0.0f) {
if (scaleFactorX > 1) {
// TODO: if we pass in the source draw context we don't need this here
if (!srcDrawContext) {
srcDrawContext.reset(context->drawContext(srcTexture->asRenderTarget()));
if (!srcDrawContext) {
return nullptr;
}
}
// Clear out a radius to the right of the srcRect to prevent the
// X convolution from reading garbage.
clearRect = SkIRect::MakeXYWH(srcIRect.fRight, srcIRect.fTop,
radiusX, srcIRect.height());
srcDrawContext->clear(&clearRect, 0x0, false);
}
SkAutoTUnref<GrDrawContext> dstDrawContext(
context->drawContext(dstTexture->asRenderTarget()));
if (!dstDrawContext) {
return nullptr;
}
convolve_gaussian(dstDrawContext, clip, srcRect,
srcTexture, Gr1DKernelEffect::kX_Direction, radiusX, sigmaX,
srcBounds, srcOffset);
srcDrawContext.swap(dstDrawContext);
srcTexture = dstTexture;
srcRect.offsetTo(0, 0);
SkTSwap(dstTexture, tempTexture);
localSrcBounds = srcRect;
srcOffset.set(0, 0);
}
if (sigmaY > 0.0f) {
if (scaleFactorY > 1 || sigmaX > 0.0f) {
// TODO: if we pass in the source draw context we don't need this here
if (!srcDrawContext) {
srcDrawContext.reset(context->drawContext(srcTexture->asRenderTarget()));
if (!srcDrawContext) {
return nullptr;
}
}
// Clear out a radius below the srcRect to prevent the Y
// convolution from reading garbage.
clearRect = SkIRect::MakeXYWH(srcIRect.fLeft, srcIRect.fBottom,
srcIRect.width(), radiusY);
srcDrawContext->clear(&clearRect, 0x0, false);
}
SkAutoTUnref<GrDrawContext> dstDrawContext(
context->drawContext(dstTexture->asRenderTarget()));
if (!dstDrawContext) {
return nullptr;
}
convolve_gaussian(dstDrawContext, clip, srcRect,
srcTexture, Gr1DKernelEffect::kY_Direction, radiusY, sigmaY,
srcBounds, srcOffset);
srcDrawContext.swap(dstDrawContext);
srcTexture = dstTexture;
srcRect.offsetTo(0, 0);
SkTSwap(dstTexture, tempTexture);
}
}
const SkIRect srcIRect = srcRect.roundOut();
if (scaleFactorX > 1 || scaleFactorY > 1) {
SkASSERT(srcDrawContext);
// Clear one pixel to the right and below, to accommodate bilinear
// upsampling.
clearRect = SkIRect::MakeXYWH(srcIRect.fLeft, srcIRect.fBottom,
srcIRect.width() + 1, 1);
srcDrawContext->clear(&clearRect, 0x0, false);
clearRect = SkIRect::MakeXYWH(srcIRect.fRight, srcIRect.fTop,
1, srcIRect.height());
srcDrawContext->clear(&clearRect, 0x0, false);
SkMatrix matrix;
matrix.setIDiv(srcTexture->width(), srcTexture->height());
GrPaint paint;
// FIXME: this should be mitchell, not bilinear.
GrTextureParams params(SkShader::kClamp_TileMode, GrTextureParams::kBilerp_FilterMode);
paint.addColorTextureProcessor(srcTexture, matrix, params);
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
SkRect dstRect(srcRect);
scale_rect(&dstRect, (float) scaleFactorX, (float) scaleFactorY);
SkAutoTUnref<GrDrawContext> dstDrawContext(
context->drawContext(dstTexture->asRenderTarget()));
if (!dstDrawContext) {
return nullptr;
}
dstDrawContext->fillRectToRect(clip, paint, SkMatrix::I(), dstRect, srcRect);
srcDrawContext.swap(dstDrawContext);
srcRect = dstRect;
srcTexture = dstTexture;
SkTSwap(dstTexture, tempTexture);
}
return SkRef(srcTexture);
}
SkImage* SkImage::NewFromYUVTexturesCopy(GrContext* ctx , SkYUVColorSpace colorSpace,
const GrBackendObject yuvTextureHandles[3],
const SkISize yuvSizes[3],
GrSurfaceOrigin origin) {
const SkSurface::Budgeted budgeted = SkSurface::kYes_Budgeted;
if (yuvSizes[0].fWidth <= 0 || yuvSizes[0].fHeight <= 0 ||
yuvSizes[1].fWidth <= 0 || yuvSizes[1].fHeight <= 0 ||
yuvSizes[2].fWidth <= 0 || yuvSizes[2].fHeight <= 0) {
return nullptr;
}
static const GrPixelConfig kConfig = kAlpha_8_GrPixelConfig;
GrBackendTextureDesc yDesc;
yDesc.fConfig = kConfig;
yDesc.fOrigin = origin;
yDesc.fSampleCnt = 0;
yDesc.fTextureHandle = yuvTextureHandles[0];
yDesc.fWidth = yuvSizes[0].fWidth;
yDesc.fHeight = yuvSizes[0].fHeight;
GrBackendTextureDesc uDesc;
uDesc.fConfig = kConfig;
uDesc.fOrigin = origin;
uDesc.fSampleCnt = 0;
uDesc.fTextureHandle = yuvTextureHandles[1];
uDesc.fWidth = yuvSizes[1].fWidth;
uDesc.fHeight = yuvSizes[1].fHeight;
GrBackendTextureDesc vDesc;
vDesc.fConfig = kConfig;
vDesc.fOrigin = origin;
vDesc.fSampleCnt = 0;
vDesc.fTextureHandle = yuvTextureHandles[2];
vDesc.fWidth = yuvSizes[2].fWidth;
vDesc.fHeight = yuvSizes[2].fHeight;
SkAutoTUnref<GrTexture> yTex(ctx->textureProvider()->wrapBackendTexture(
yDesc, kBorrow_GrWrapOwnership));
SkAutoTUnref<GrTexture> uTex(ctx->textureProvider()->wrapBackendTexture(
uDesc, kBorrow_GrWrapOwnership));
SkAutoTUnref<GrTexture> vTex(ctx->textureProvider()->wrapBackendTexture(
vDesc, kBorrow_GrWrapOwnership));
if (!yTex || !uTex || !vTex) {
return nullptr;
}
GrSurfaceDesc dstDesc;
// Needs to be a render target in order to draw to it for the yuv->rgb conversion.
dstDesc.fFlags = kRenderTarget_GrSurfaceFlag;
dstDesc.fOrigin = origin;
dstDesc.fWidth = yuvSizes[0].fWidth;
dstDesc.fHeight = yuvSizes[0].fHeight;
dstDesc.fConfig = kRGBA_8888_GrPixelConfig;
dstDesc.fSampleCnt = 0;
SkAutoTUnref<GrTexture> dst(ctx->textureProvider()->createTexture(dstDesc, true));
if (!dst) {
return nullptr;
}
GrPaint paint;
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
paint.addColorFragmentProcessor(GrYUVtoRGBEffect::Create(paint.getProcessorDataManager(),
yTex, uTex, vTex, yuvSizes,
colorSpace))->unref();
const SkRect rect = SkRect::MakeWH(SkIntToScalar(dstDesc.fWidth),
SkIntToScalar(dstDesc.fHeight));
SkAutoTUnref<GrDrawContext> drawContext(ctx->drawContext());
if (!drawContext) {
return nullptr;
}
drawContext->drawRect(dst->asRenderTarget(), GrClip::WideOpen(), paint, SkMatrix::I(), rect);
ctx->flushSurfaceWrites(dst);
return new SkImage_Gpu(dstDesc.fWidth, dstDesc.fHeight, kNeedNewImageUniqueID,
kOpaque_SkAlphaType, dst, budgeted);
}
GrTexture* GrYUVProvider::refAsTexture(GrContext* ctx, const GrSurfaceDesc& desc, bool useCache) {
SkYUVPlanesCache::Info yuvInfo;
void* planes[3];
YUVScoper scoper;
if (!scoper.init(this, &yuvInfo, planes, useCache)) {
return nullptr;
}
GrSurfaceDesc yuvDesc;
yuvDesc.fConfig = kAlpha_8_GrPixelConfig;
SkAutoTUnref<GrTexture> yuvTextures[3];
for (int i = 0; i < 3; i++) {
yuvDesc.fWidth = yuvInfo.fSizeInfo.fSizes[i].fWidth;
yuvDesc.fHeight = yuvInfo.fSizeInfo.fSizes[i].fHeight;
// TODO: why do we need this check?
bool needsExactTexture =
(yuvDesc.fWidth != yuvInfo.fSizeInfo.fSizes[SkYUVSizeInfo::kY].fWidth) ||
(yuvDesc.fHeight != yuvInfo.fSizeInfo.fSizes[SkYUVSizeInfo::kY].fHeight);
if (needsExactTexture) {
yuvTextures[i].reset(ctx->textureProvider()->createTexture(yuvDesc, SkBudgeted::kYes));
} else {
yuvTextures[i].reset(ctx->textureProvider()->createApproxTexture(yuvDesc));
}
if (!yuvTextures[i] ||
!yuvTextures[i]->writePixels(0, 0, yuvDesc.fWidth, yuvDesc.fHeight, yuvDesc.fConfig,
planes[i], yuvInfo.fSizeInfo.fWidthBytes[i])) {
return nullptr;
}
}
GrSurfaceDesc rtDesc = desc;
rtDesc.fFlags = rtDesc.fFlags | kRenderTarget_GrSurfaceFlag;
SkAutoTUnref<GrTexture> result(ctx->textureProvider()->createTexture(rtDesc, SkBudgeted::kYes,
nullptr, 0));
if (!result) {
return nullptr;
}
GrRenderTarget* renderTarget = result->asRenderTarget();
SkASSERT(renderTarget);
GrPaint paint;
// We may be decoding an sRGB image, but the result of our linear math on the YUV planes
// is already in sRGB in that case. Don't convert (which will make the image too bright).
paint.setDisableOutputConversionToSRGB(true);
SkAutoTUnref<const GrFragmentProcessor> yuvToRgbProcessor(
GrYUVEffect::CreateYUVToRGB(yuvTextures[0],
yuvTextures[1],
yuvTextures[2],
yuvInfo.fSizeInfo.fSizes,
yuvInfo.fColorSpace));
paint.addColorFragmentProcessor(yuvToRgbProcessor);
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
const SkRect r = SkRect::MakeIWH(yuvInfo.fSizeInfo.fSizes[SkYUVSizeInfo::kY].fWidth,
yuvInfo.fSizeInfo.fSizes[SkYUVSizeInfo::kY].fHeight);
SkAutoTUnref<GrDrawContext> drawContext(ctx->drawContext(renderTarget));
if (!drawContext) {
return nullptr;
}
drawContext->drawRect(GrClip::WideOpen(), paint, SkMatrix::I(), r);
return result.release();
}
static GrTexture* copy_on_gpu(GrTexture* inputTexture, const SkIRect* subset,
const CopyParams& copyParams) {
SkASSERT(!subset || !subset->isEmpty());
GrContext* context = inputTexture->getContext();
SkASSERT(context);
const GrCaps* caps = context->caps();
// Either it's a cache miss or the original wasn't cached to begin with.
GrSurfaceDesc rtDesc = inputTexture->desc();
rtDesc.fFlags = rtDesc.fFlags | kRenderTarget_GrSurfaceFlag;
rtDesc.fWidth = copyParams.fWidth;
rtDesc.fHeight = copyParams.fHeight;
rtDesc.fConfig = GrMakePixelConfigUncompressed(rtDesc.fConfig);
// If the config isn't renderable try converting to either A8 or an 32 bit config. Otherwise,
// fail.
if (!caps->isConfigRenderable(rtDesc.fConfig, false)) {
if (GrPixelConfigIsAlphaOnly(rtDesc.fConfig)) {
if (caps->isConfigRenderable(kAlpha_8_GrPixelConfig, false)) {
rtDesc.fConfig = kAlpha_8_GrPixelConfig;
} else if (caps->isConfigRenderable(kSkia8888_GrPixelConfig, false)) {
rtDesc.fConfig = kSkia8888_GrPixelConfig;
} else {
return nullptr;
}
} else if (kRGB_GrColorComponentFlags ==
(kRGB_GrColorComponentFlags & GrPixelConfigComponentMask(rtDesc.fConfig))) {
if (caps->isConfigRenderable(kSkia8888_GrPixelConfig, false)) {
rtDesc.fConfig = kSkia8888_GrPixelConfig;
} else {
return nullptr;
}
} else {
return nullptr;
}
}
SkAutoTUnref<GrTexture> copy(context->textureProvider()->createTexture(rtDesc,
SkBudgeted::kYes));
if (!copy) {
return nullptr;
}
// TODO: If no scaling is being performed then use copySurface.
GrPaint paint;
paint.setGammaCorrect(true);
// TODO: Initializing these values for no reason cause the compiler is complaining
SkScalar sx = 0.f;
SkScalar sy = 0.f;
if (subset) {
sx = 1.f / inputTexture->width();
sy = 1.f / inputTexture->height();
}
if (copyParams.fFilter != GrTextureParams::kNone_FilterMode && subset &&
(subset->width() != copyParams.fWidth || subset->height() != copyParams.fHeight)) {
SkRect domain;
domain.fLeft = (subset->fLeft + 0.5f) * sx;
domain.fTop = (subset->fTop + 0.5f)* sy;
domain.fRight = (subset->fRight - 0.5f) * sx;
domain.fBottom = (subset->fBottom - 0.5f) * sy;
// This would cause us to read values from outside the subset. Surely, the caller knows
// better!
SkASSERT(copyParams.fFilter != GrTextureParams::kMipMap_FilterMode);
paint.addColorFragmentProcessor(
GrTextureDomainEffect::Make(inputTexture, SkMatrix::I(), domain,
GrTextureDomain::kClamp_Mode,
copyParams.fFilter));
} else {
GrTextureParams params(SkShader::kClamp_TileMode, copyParams.fFilter);
paint.addColorTextureProcessor(inputTexture, SkMatrix::I(), params);
}
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
SkRect localRect;
if (subset) {
localRect = SkRect::Make(*subset);
localRect.fLeft *= sx;
localRect.fTop *= sy;
localRect.fRight *= sx;
localRect.fBottom *= sy;
} else {
localRect = SkRect::MakeWH(1.f, 1.f);
}
sk_sp<GrDrawContext> drawContext(context->drawContext(sk_ref_sp(copy->asRenderTarget())));
if (!drawContext) {
return nullptr;
}
SkRect dstRect = SkRect::MakeWH(SkIntToScalar(rtDesc.fWidth), SkIntToScalar(rtDesc.fHeight));
drawContext->fillRectToRect(GrNoClip(), paint, SkMatrix::I(), dstRect, localRect);
return copy.release();
}
sk_sp<SkImage> SkImage::MakeFromYUVTexturesCopy(GrContext* ctx , SkYUVColorSpace colorSpace,
const GrBackendObject yuvTextureHandles[3],
const SkISize yuvSizes[3],
GrSurfaceOrigin origin) {
const SkBudgeted budgeted = SkBudgeted::kYes;
if (yuvSizes[0].fWidth <= 0 || yuvSizes[0].fHeight <= 0 ||
yuvSizes[1].fWidth <= 0 || yuvSizes[1].fHeight <= 0 ||
yuvSizes[2].fWidth <= 0 || yuvSizes[2].fHeight <= 0) {
return nullptr;
}
static const GrPixelConfig kConfig = kAlpha_8_GrPixelConfig;
GrBackendTextureDesc yDesc;
yDesc.fConfig = kConfig;
yDesc.fOrigin = origin;
yDesc.fSampleCnt = 0;
yDesc.fTextureHandle = yuvTextureHandles[0];
yDesc.fWidth = yuvSizes[0].fWidth;
yDesc.fHeight = yuvSizes[0].fHeight;
GrBackendTextureDesc uDesc;
uDesc.fConfig = kConfig;
uDesc.fOrigin = origin;
uDesc.fSampleCnt = 0;
uDesc.fTextureHandle = yuvTextureHandles[1];
uDesc.fWidth = yuvSizes[1].fWidth;
uDesc.fHeight = yuvSizes[1].fHeight;
GrBackendTextureDesc vDesc;
vDesc.fConfig = kConfig;
vDesc.fOrigin = origin;
vDesc.fSampleCnt = 0;
vDesc.fTextureHandle = yuvTextureHandles[2];
vDesc.fWidth = yuvSizes[2].fWidth;
vDesc.fHeight = yuvSizes[2].fHeight;
SkAutoTUnref<GrTexture> yTex(ctx->textureProvider()->wrapBackendTexture(
yDesc, kBorrow_GrWrapOwnership));
SkAutoTUnref<GrTexture> uTex(ctx->textureProvider()->wrapBackendTexture(
uDesc, kBorrow_GrWrapOwnership));
SkAutoTUnref<GrTexture> vTex(ctx->textureProvider()->wrapBackendTexture(
vDesc, kBorrow_GrWrapOwnership));
if (!yTex || !uTex || !vTex) {
return nullptr;
}
const int width = yuvSizes[0].fWidth;
const int height = yuvSizes[0].fHeight;
// Needs to be a render target in order to draw to it for the yuv->rgb conversion.
sk_sp<GrDrawContext> drawContext(ctx->newDrawContext(GrContext::kTight_BackingFit,
width, height,
kRGBA_8888_GrPixelConfig,
0,
origin));
if (!drawContext) {
return nullptr;
}
GrPaint paint;
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
paint.addColorFragmentProcessor(GrYUVEffect::CreateYUVToRGB(yTex, uTex, vTex, yuvSizes,
colorSpace))->unref();
const SkRect rect = SkRect::MakeWH(SkIntToScalar(width), SkIntToScalar(height));
drawContext->drawRect(GrClip::WideOpen(), paint, SkMatrix::I(), rect);
ctx->flushSurfaceWrites(drawContext->accessRenderTarget());
return sk_make_sp<SkImage_Gpu>(width, height, kNeedNewImageUniqueID,
kOpaque_SkAlphaType,
drawContext->asTexture().get(), budgeted);
}
sk_sp<GrDrawContext> GaussianBlur(GrContext* context,
GrTexture* origSrc,
sk_sp<SkColorSpace> colorSpace,
const SkIRect& dstBounds,
const SkIRect* srcBounds,
float sigmaX,
float sigmaY,
SkBackingFit fit) {
SkASSERT(context);
SkIRect clearRect;
int scaleFactorX, radiusX;
int scaleFactorY, radiusY;
int maxTextureSize = context->caps()->maxTextureSize();
sigmaX = adjust_sigma(sigmaX, maxTextureSize, &scaleFactorX, &radiusX);
sigmaY = adjust_sigma(sigmaY, maxTextureSize, &scaleFactorY, &radiusY);
SkASSERT(sigmaX || sigmaY);
SkIPoint srcOffset = SkIPoint::Make(-dstBounds.x(), -dstBounds.y());
SkIRect localDstBounds = SkIRect::MakeWH(dstBounds.width(), dstBounds.height());
SkIRect localSrcBounds;
SkIRect srcRect;
if (srcBounds) {
srcRect = localSrcBounds = *srcBounds;
srcRect.offset(srcOffset);
srcBounds = &localSrcBounds;
} else {
srcRect = localDstBounds;
}
scale_irect_roundout(&srcRect, 1.0f / scaleFactorX, 1.0f / scaleFactorY);
scale_irect(&srcRect, scaleFactorX, scaleFactorY);
// setup new clip
GrFixedClip clip(localDstBounds);
sk_sp<GrTexture> srcTexture(sk_ref_sp(origSrc));
SkASSERT(kBGRA_8888_GrPixelConfig == srcTexture->config() ||
kRGBA_8888_GrPixelConfig == srcTexture->config() ||
kSRGBA_8888_GrPixelConfig == srcTexture->config() ||
kSBGRA_8888_GrPixelConfig == srcTexture->config() ||
kRGBA_half_GrPixelConfig == srcTexture->config() ||
kAlpha_8_GrPixelConfig == srcTexture->config());
const int width = dstBounds.width();
const int height = dstBounds.height();
const GrPixelConfig config = srcTexture->config();
sk_sp<GrDrawContext> dstDrawContext(context->makeDrawContext(fit,
width, height, config, colorSpace,
0, kDefault_GrSurfaceOrigin));
if (!dstDrawContext) {
return nullptr;
}
// For really small blurs (certainly no wider than 5x5 on desktop gpus) it is faster to just
// launch a single non separable kernel vs two launches
if (sigmaX > 0.0f && sigmaY > 0.0f &&
(2 * radiusX + 1) * (2 * radiusY + 1) <= MAX_KERNEL_SIZE) {
// We shouldn't be scaling because this is a small size blur
SkASSERT((1 == scaleFactorX) && (1 == scaleFactorY));
convolve_gaussian_2d(dstDrawContext.get(), clip, localDstBounds, srcOffset,
srcTexture.get(), radiusX, radiusY, sigmaX, sigmaY, srcBounds);
return dstDrawContext;
}
sk_sp<GrDrawContext> tmpDrawContext(context->makeDrawContext(fit,
width, height, config, colorSpace,
0, kDefault_GrSurfaceOrigin));
if (!tmpDrawContext) {
return nullptr;
}
sk_sp<GrDrawContext> srcDrawContext;
SkASSERT(SkIsPow2(scaleFactorX) && SkIsPow2(scaleFactorY));
for (int i = 1; i < scaleFactorX || i < scaleFactorY; i *= 2) {
GrPaint paint;
paint.setGammaCorrect(dstDrawContext->isGammaCorrect());
SkMatrix matrix;
matrix.setIDiv(srcTexture->width(), srcTexture->height());
SkIRect dstRect(srcRect);
if (srcBounds && i == 1) {
SkRect domain;
matrix.mapRect(&domain, SkRect::Make(*srcBounds));
domain.inset((i < scaleFactorX) ? SK_ScalarHalf / srcTexture->width() : 0.0f,
(i < scaleFactorY) ? SK_ScalarHalf / srcTexture->height() : 0.0f);
sk_sp<GrFragmentProcessor> fp(GrTextureDomainEffect::Make(
srcTexture.get(),
nullptr,
matrix,
domain,
GrTextureDomain::kDecal_Mode,
GrTextureParams::kBilerp_FilterMode));
paint.addColorFragmentProcessor(std::move(fp));
srcRect.offset(-srcOffset);
srcOffset.set(0, 0);
} else {
GrTextureParams params(SkShader::kClamp_TileMode, GrTextureParams::kBilerp_FilterMode);
paint.addColorTextureProcessor(srcTexture.get(), nullptr, matrix, params);
}
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
shrink_irect_by_2(&dstRect, i < scaleFactorX, i < scaleFactorY);
dstDrawContext->fillRectToRect(clip, paint, SkMatrix::I(),
SkRect::Make(dstRect), SkRect::Make(srcRect));
srcDrawContext = dstDrawContext;
srcRect = dstRect;
srcTexture = srcDrawContext->asTexture();
dstDrawContext.swap(tmpDrawContext);
localSrcBounds = srcRect;
}
srcRect = localDstBounds;
scale_irect_roundout(&srcRect, 1.0f / scaleFactorX, 1.0f / scaleFactorY);
if (sigmaX > 0.0f) {
if (scaleFactorX > 1) {
SkASSERT(srcDrawContext);
// Clear out a radius to the right of the srcRect to prevent the
// X convolution from reading garbage.
clearRect = SkIRect::MakeXYWH(srcRect.fRight, srcRect.fTop,
radiusX, srcRect.height());
srcDrawContext->clear(&clearRect, 0x0, false);
}
convolve_gaussian(dstDrawContext.get(), clip, srcRect,
srcTexture.get(), Gr1DKernelEffect::kX_Direction, radiusX, sigmaX,
srcBounds, srcOffset);
srcDrawContext = dstDrawContext;
srcTexture = srcDrawContext->asTexture();
srcRect.offsetTo(0, 0);
dstDrawContext.swap(tmpDrawContext);
localSrcBounds = srcRect;
srcOffset.set(0, 0);
}
if (sigmaY > 0.0f) {
if (scaleFactorY > 1 || sigmaX > 0.0f) {
SkASSERT(srcDrawContext);
// Clear out a radius below the srcRect to prevent the Y
// convolution from reading garbage.
clearRect = SkIRect::MakeXYWH(srcRect.fLeft, srcRect.fBottom,
srcRect.width(), radiusY);
srcDrawContext->clear(&clearRect, 0x0, false);
}
convolve_gaussian(dstDrawContext.get(), clip, srcRect,
srcTexture.get(), Gr1DKernelEffect::kY_Direction, radiusY, sigmaY,
srcBounds, srcOffset);
srcDrawContext = dstDrawContext;
srcRect.offsetTo(0, 0);
dstDrawContext.swap(tmpDrawContext);
}
SkASSERT(srcDrawContext);
srcTexture = nullptr; // we don't use this from here on out
if (scaleFactorX > 1 || scaleFactorY > 1) {
// Clear one pixel to the right and below, to accommodate bilinear upsampling.
clearRect = SkIRect::MakeXYWH(srcRect.fLeft, srcRect.fBottom, srcRect.width() + 1, 1);
srcDrawContext->clear(&clearRect, 0x0, false);
clearRect = SkIRect::MakeXYWH(srcRect.fRight, srcRect.fTop, 1, srcRect.height());
srcDrawContext->clear(&clearRect, 0x0, false);
SkMatrix matrix;
matrix.setIDiv(srcDrawContext->width(), srcDrawContext->height());
GrPaint paint;
paint.setGammaCorrect(dstDrawContext->isGammaCorrect());
// FIXME: this should be mitchell, not bilinear.
GrTextureParams params(SkShader::kClamp_TileMode, GrTextureParams::kBilerp_FilterMode);
sk_sp<GrTexture> tex(srcDrawContext->asTexture());
paint.addColorTextureProcessor(tex.get(), nullptr, matrix, params);
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
SkIRect dstRect(srcRect);
scale_irect(&dstRect, scaleFactorX, scaleFactorY);
dstDrawContext->fillRectToRect(clip, paint, SkMatrix::I(),
SkRect::Make(dstRect), SkRect::Make(srcRect));
srcDrawContext = dstDrawContext;
srcRect = dstRect;
dstDrawContext.swap(tmpDrawContext);
}
return srcDrawContext;
}
sk_sp<GrTextureProxy> GrYUVProvider::refAsTextureProxy(GrContext* ctx, const GrSurfaceDesc& desc,
const SkColorSpace* srcColorSpace,
const SkColorSpace* dstColorSpace) {
SkYUVPlanesCache::Info yuvInfo;
void* planes[3];
sk_sp<SkCachedData> dataStorage = init_provider(this, &yuvInfo, planes);
if (!dataStorage) {
return nullptr;
}
sk_sp<GrTextureProxy> yuvTextureProxies[3];
for (int i = 0; i < 3; i++) {
int componentWidth = yuvInfo.fSizeInfo.fSizes[i].fWidth;
int componentHeight = yuvInfo.fSizeInfo.fSizes[i].fHeight;
// If the sizes of the components are not all the same we choose to create exact-match
// textures for the smaller onces rather than add a texture domain to the draw.
// TODO: revisit this decision to imporve texture reuse?
SkBackingFit fit =
(componentWidth != yuvInfo.fSizeInfo.fSizes[SkYUVSizeInfo::kY].fWidth) ||
(componentHeight != yuvInfo.fSizeInfo.fSizes[SkYUVSizeInfo::kY].fHeight)
? SkBackingFit::kExact : SkBackingFit::kApprox;
SkImageInfo imageInfo = SkImageInfo::MakeA8(componentWidth, componentHeight);
SkPixmap pixmap(imageInfo, planes[i], yuvInfo.fSizeInfo.fWidthBytes[i]);
SkCachedData* dataStoragePtr = dataStorage.get();
// We grab a ref to cached yuv data. When the SkImage we create below goes away it will call
// the YUVGen_DataReleaseProc which will release this ref.
// DDL TODO: Currently we end up creating a lazy proxy that will hold onto a ref to the
// SkImage in its lambda. This means that we'll keep the ref on the YUV data around for the
// life time of the proxy and not just upload. For non-DDL draws we should look into
// releasing this SkImage after uploads (by deleting the lambda after instantiation).
dataStoragePtr->ref();
sk_sp<SkImage> yuvImage = SkImage::MakeFromRaster(pixmap, YUVGen_DataReleaseProc,
dataStoragePtr);
auto proxyProvider = ctx->contextPriv().proxyProvider();
yuvTextureProxies[i] = proxyProvider->createTextureProxy(yuvImage, kNone_GrSurfaceFlags,
kTopLeft_GrSurfaceOrigin,
1, SkBudgeted::kYes, fit);
}
// We never want to perform color-space conversion during the decode. However, if the proxy
// config is sRGB then we must use a sRGB color space.
sk_sp<SkColorSpace> colorSpace;
if (GrPixelConfigIsSRGB(desc.fConfig)) {
colorSpace = SkColorSpace::MakeSRGB();
}
// TODO: investigate preallocating mip maps here
sk_sp<GrRenderTargetContext> renderTargetContext(ctx->makeDeferredRenderTargetContext(
SkBackingFit::kExact, desc.fWidth, desc.fHeight, desc.fConfig, std::move(colorSpace),
desc.fSampleCnt, GrMipMapped::kNo, kTopLeft_GrSurfaceOrigin));
if (!renderTargetContext) {
return nullptr;
}
GrPaint paint;
auto yuvToRgbProcessor =
GrYUVtoRGBEffect::Make(std::move(yuvTextureProxies[0]),
std::move(yuvTextureProxies[1]),
std::move(yuvTextureProxies[2]),
yuvInfo.fSizeInfo.fSizes, yuvInfo.fColorSpace, false);
paint.addColorFragmentProcessor(std::move(yuvToRgbProcessor));
// If we're decoding an sRGB image, the result of our linear math on the YUV planes is already
// in sRGB. (The encoding is just math on bytes, with no concept of color spaces.) So, we need
// to output the results of that math directly to the buffer that we will then consider sRGB.
// If we have sRGB write control, we can just tell the HW not to do the Linear -> sRGB step.
// Otherwise, we do our shader math to go from YUV -> sRGB, manually convert sRGB -> Linear,
// then let the HW convert Linear -> sRGB.
if (GrPixelConfigIsSRGB(desc.fConfig)) {
if (ctx->caps()->srgbWriteControl()) {
paint.setDisableOutputConversionToSRGB(true);
} else {
paint.addColorFragmentProcessor(GrSRGBEffect::Make(GrSRGBEffect::Mode::kSRGBToLinear,
GrSRGBEffect::Alpha::kOpaque));
}
}
// If the caller expects the pixels in a different color space than the one from the image,
// apply a color conversion to do this.
std::unique_ptr<GrFragmentProcessor> colorConversionProcessor =
GrNonlinearColorSpaceXformEffect::Make(srcColorSpace, dstColorSpace);
if (colorConversionProcessor) {
paint.addColorFragmentProcessor(std::move(colorConversionProcessor));
}
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
const SkRect r = SkRect::MakeIWH(yuvInfo.fSizeInfo.fSizes[SkYUVSizeInfo::kY].fWidth,
yuvInfo.fSizeInfo.fSizes[SkYUVSizeInfo::kY].fHeight);
renderTargetContext->drawRect(GrNoClip(), std::move(paint), GrAA::kNo, SkMatrix::I(), r);
return renderTargetContext->asTextureProxyRef();
}
bool SkXfermodeImageFilter::filterImageGPUDeprecated(Proxy* proxy,
const SkBitmap& src,
const Context& ctx,
SkBitmap* result,
SkIPoint* offset) const {
GrContext* context = nullptr;
SkBitmap background = src;
SkIPoint backgroundOffset = SkIPoint::Make(0, 0);
if (!this->filterInputGPUDeprecated(0, proxy, src, ctx, &background, &backgroundOffset)) {
background.reset();
}
GrTexture* backgroundTex = background.getTexture();
if (backgroundTex) {
context = backgroundTex->getContext();
}
SkBitmap foreground = src;
SkIPoint foregroundOffset = SkIPoint::Make(0, 0);
if (!this->filterInputGPUDeprecated(1, proxy, src, ctx, &foreground, &foregroundOffset)) {
foreground.reset();
}
GrTexture* foregroundTex = foreground.getTexture();
if (foregroundTex) {
context = foregroundTex->getContext();
}
if (!context) {
return false;
}
SkIRect bounds = background.bounds().makeOffset(backgroundOffset.x(), backgroundOffset.y());
bounds.join(foreground.bounds().makeOffset(foregroundOffset.x(), foregroundOffset.y()));
if (bounds.isEmpty()) {
return false;
}
GrSurfaceDesc desc;
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fWidth = bounds.width();
desc.fHeight = bounds.height();
desc.fConfig = kSkia8888_GrPixelConfig;
SkAutoTUnref<GrTexture> dst(context->textureProvider()->createApproxTexture(desc));
if (!dst) {
return false;
}
GrPaint paint;
SkAutoTUnref<const GrFragmentProcessor> bgFP;
if (backgroundTex) {
SkMatrix backgroundMatrix;
backgroundMatrix.setIDiv(backgroundTex->width(), backgroundTex->height());
backgroundMatrix.preTranslate(SkIntToScalar(-backgroundOffset.fX),
SkIntToScalar(-backgroundOffset.fY));
bgFP.reset(GrTextureDomainEffect::Create(
backgroundTex, backgroundMatrix,
GrTextureDomain::MakeTexelDomain(backgroundTex, background.bounds()),
GrTextureDomain::kDecal_Mode,
GrTextureParams::kNone_FilterMode));
} else {
bgFP.reset(GrConstColorProcessor::Create(GrColor_TRANSPARENT_BLACK,
GrConstColorProcessor::kIgnore_InputMode));
}
if (foregroundTex) {
SkMatrix foregroundMatrix;
foregroundMatrix.setIDiv(foregroundTex->width(), foregroundTex->height());
foregroundMatrix.preTranslate(SkIntToScalar(-foregroundOffset.fX),
SkIntToScalar(-foregroundOffset.fY));
SkAutoTUnref<const GrFragmentProcessor> foregroundFP;
foregroundFP.reset(GrTextureDomainEffect::Create(
foregroundTex, foregroundMatrix,
GrTextureDomain::MakeTexelDomain(foregroundTex, foreground.bounds()),
GrTextureDomain::kDecal_Mode,
GrTextureParams::kNone_FilterMode));
paint.addColorFragmentProcessor(foregroundFP.get());
// A null fMode is interpreted to mean kSrcOver_Mode (to match raster).
SkAutoTUnref<SkXfermode> mode(SkSafeRef(fMode.get()));
if (!mode) {
// It would be awesome to use SkXfermode::Create here but it knows better
// than us and won't return a kSrcOver_Mode SkXfermode. That means we
// have to get one the hard way.
struct ProcCoeff rec;
rec.fProc = SkXfermode::GetProc(SkXfermode::kSrcOver_Mode);
SkXfermode::ModeAsCoeff(SkXfermode::kSrcOver_Mode, &rec.fSC, &rec.fDC);
mode.reset(new SkProcCoeffXfermode(rec, SkXfermode::kSrcOver_Mode));
}
SkAutoTUnref<const GrFragmentProcessor> xferFP(mode->getFragmentProcessorForImageFilter(bgFP));
// A null 'xferFP' here means kSrc_Mode was used in which case we can just proceed
if (xferFP) {
paint.addColorFragmentProcessor(xferFP);
}
} else {
paint.addColorFragmentProcessor(bgFP);
}
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
SkAutoTUnref<GrDrawContext> drawContext(context->drawContext(dst->asRenderTarget()));
if (!drawContext) {
return false;
}
SkMatrix matrix;
matrix.setTranslate(SkIntToScalar(-bounds.left()), SkIntToScalar(-bounds.top()));
drawContext->drawRect(GrClip::WideOpen(), paint, matrix, SkRect::Make(bounds));
offset->fX = bounds.left();
offset->fY = bounds.top();
GrWrapTextureInBitmap(dst, bounds.width(), bounds.height(), false, result);
return true;
}
static GrTexture* copy_on_gpu(GrTexture* inputTexture, const SkIRect* subset,
const CopyParams& copyParams) {
SkASSERT(!subset || !subset->isEmpty());
GrContext* context = inputTexture->getContext();
SkASSERT(context);
GrPixelConfig config = GrMakePixelConfigUncompressed(inputTexture->config());
sk_sp<GrDrawContext> copyDC = context->makeDrawContextWithFallback(SkBackingFit::kExact,
copyParams.fWidth,
copyParams.fHeight,
config, nullptr);
if (!copyDC) {
return nullptr;
}
GrPaint paint;
paint.setGammaCorrect(true);
SkScalar sx SK_INIT_TO_AVOID_WARNING;
SkScalar sy SK_INIT_TO_AVOID_WARNING;
if (subset) {
sx = 1.f / inputTexture->width();
sy = 1.f / inputTexture->height();
}
if (copyParams.fFilter != GrTextureParams::kNone_FilterMode && subset &&
(subset->width() != copyParams.fWidth || subset->height() != copyParams.fHeight)) {
SkRect domain;
domain.fLeft = (subset->fLeft + 0.5f) * sx;
domain.fTop = (subset->fTop + 0.5f)* sy;
domain.fRight = (subset->fRight - 0.5f) * sx;
domain.fBottom = (subset->fBottom - 0.5f) * sy;
// This would cause us to read values from outside the subset. Surely, the caller knows
// better!
SkASSERT(copyParams.fFilter != GrTextureParams::kMipMap_FilterMode);
paint.addColorFragmentProcessor(
GrTextureDomainEffect::Make(inputTexture, nullptr, SkMatrix::I(), domain,
GrTextureDomain::kClamp_Mode,
copyParams.fFilter));
} else {
GrTextureParams params(SkShader::kClamp_TileMode, copyParams.fFilter);
paint.addColorTextureProcessor(inputTexture, nullptr, SkMatrix::I(), params);
}
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
SkRect localRect;
if (subset) {
localRect = SkRect::Make(*subset);
localRect.fLeft *= sx;
localRect.fTop *= sy;
localRect.fRight *= sx;
localRect.fBottom *= sy;
} else {
localRect = SkRect::MakeWH(1.f, 1.f);
}
SkRect dstRect = SkRect::MakeIWH(copyParams.fWidth, copyParams.fHeight);
copyDC->fillRectToRect(GrNoClip(), paint, SkMatrix::I(), dstRect, localRect);
return copyDC->asTexture().release();
}
sk_sp<SkSpecialImage> SkXfermodeImageFilter::filterImageGPU(SkSpecialImage* source,
sk_sp<SkSpecialImage> background,
const SkIPoint& backgroundOffset,
sk_sp<SkSpecialImage> foreground,
const SkIPoint& foregroundOffset,
const SkIRect& bounds) const {
SkASSERT(source->isTextureBacked());
GrContext* context = source->getContext();
sk_sp<GrTexture> backgroundTex, foregroundTex;
if (background) {
backgroundTex = background->asTextureRef(context);
}
if (foreground) {
foregroundTex = foreground->asTextureRef(context);
}
GrPaint paint;
// SRGBTODO: AllowSRGBInputs?
sk_sp<GrFragmentProcessor> bgFP;
if (backgroundTex) {
SkMatrix backgroundMatrix;
backgroundMatrix.setIDiv(backgroundTex->width(), backgroundTex->height());
backgroundMatrix.preTranslate(SkIntToScalar(-backgroundOffset.fX),
SkIntToScalar(-backgroundOffset.fY));
bgFP = GrTextureDomainEffect::Make(
backgroundTex.get(), nullptr, backgroundMatrix,
GrTextureDomain::MakeTexelDomain(backgroundTex.get(),
background->subset()),
GrTextureDomain::kDecal_Mode,
GrTextureParams::kNone_FilterMode);
} else {
bgFP = GrConstColorProcessor::Make(GrColor_TRANSPARENT_BLACK,
GrConstColorProcessor::kIgnore_InputMode);
}
if (foregroundTex) {
SkMatrix foregroundMatrix;
foregroundMatrix.setIDiv(foregroundTex->width(), foregroundTex->height());
foregroundMatrix.preTranslate(SkIntToScalar(-foregroundOffset.fX),
SkIntToScalar(-foregroundOffset.fY));
sk_sp<GrFragmentProcessor> foregroundFP;
foregroundFP = GrTextureDomainEffect::Make(
foregroundTex.get(), nullptr, foregroundMatrix,
GrTextureDomain::MakeTexelDomain(foregroundTex.get(),
foreground->subset()),
GrTextureDomain::kDecal_Mode,
GrTextureParams::kNone_FilterMode);
paint.addColorFragmentProcessor(std::move(foregroundFP));
// A null fMode is interpreted to mean kSrcOver_Mode (to match raster).
SkAutoTUnref<SkXfermode> mode(SkSafeRef(fMode.get()));
if (!mode) {
// It would be awesome to use SkXfermode::Create here but it knows better
// than us and won't return a kSrcOver_Mode SkXfermode. That means we
// have to get one the hard way.
struct ProcCoeff rec;
rec.fProc = SkXfermode::GetProc(SkXfermode::kSrcOver_Mode);
SkXfermode::ModeAsCoeff(SkXfermode::kSrcOver_Mode, &rec.fSC, &rec.fDC);
mode.reset(new SkProcCoeffXfermode(rec, SkXfermode::kSrcOver_Mode));
}
sk_sp<GrFragmentProcessor> xferFP(
mode->makeFragmentProcessorForImageFilter(std::move(bgFP)));
// A null 'xferFP' here means kSrc_Mode was used in which case we can just proceed
if (xferFP) {
paint.addColorFragmentProcessor(std::move(xferFP));
}
} else {
paint.addColorFragmentProcessor(std::move(bgFP));
}
paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode);
sk_sp<GrDrawContext> drawContext(context->makeDrawContext(SkBackingFit::kApprox,
bounds.width(), bounds.height(),
kSkia8888_GrPixelConfig,
sk_ref_sp(source->getColorSpace())));
if (!drawContext) {
return nullptr;
}
SkMatrix matrix;
matrix.setTranslate(SkIntToScalar(-bounds.left()), SkIntToScalar(-bounds.top()));
drawContext->drawRect(GrNoClip(), paint, matrix, SkRect::Make(bounds));
return SkSpecialImage::MakeFromGpu(SkIRect::MakeWH(bounds.width(), bounds.height()),
kNeedNewImageUniqueID_SpecialImage,
drawContext->asTexture(),
sk_ref_sp(drawContext->getColorSpace()));
}
DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(SRGBMipMaps, reporter, ctxInfo) {
GrContext* context = ctxInfo.grContext();
if (!context->caps()->srgbSupport()) {
return;
}
const int rtS = 16;
const int texS = rtS * 2;
// Fill texture with a dither of black and 60% sRGB (~ 32.5% linear) gray. Although there is
// only one likely failure mode (doing a direct downsample of the sRGB values), this pattern
// maximizes the minimum error across all three conceivable failure modes:
// 1) Likely incorrect:
// (A + B) / 2
// 2) No input decode, decode output:
// linear_to_srgb((A + B) / 2)
// 3) Decode input, no output encode:
// (srgb_to_linear(A) + srgb_to_linear(B)) / 2
const U8CPU srgb60 = sk_float_round2int(0.6f * 255.0f);
static const SkPMColor colors[2] = {
SkPackARGB32(0xFF, srgb60, srgb60, srgb60),
SkPackARGB32(0xFF, 0x00, 0x00, 0x00)
};
uint32_t texData[texS * texS];
for (int y = 0; y < texS; ++y) {
for (int x = 0; x < texS; ++x) {
texData[y * texS + x] = colors[(x + y) % 2];
}
}
// We can be pretty generous with the error detection, thanks to the choice of input.
// The closest likely failure mode is off by > 0.1, so anything that encodes within
// 10/255 of optimal is more than good enough for this test.
const U8CPU expectedSRGB = sk_float_round2int(
linear_to_srgb(srgb_to_linear(srgb60 / 255.0f) / 2.0f) * 255.0f);
const U8CPU expectedLinear = srgb60 / 2;
const U8CPU error = 10;
// Create our test texture
GrSurfaceDesc desc;
desc.fFlags = kNone_GrSurfaceFlags;
desc.fConfig = kSRGBA_8888_GrPixelConfig;
desc.fWidth = texS;
desc.fHeight = texS;
GrTextureProvider* texProvider = context->textureProvider();
SkAutoTUnref<GrTexture> texture(texProvider->createTexture(desc, SkBudgeted::kNo, texData, 0));
// Create two render target contexts (L32 and S32)
sk_sp<SkColorSpace> srgbColorSpace = SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named);
sk_sp<GrRenderTargetContext> l32RenderTargetContext = context->makeRenderTargetContext(
SkBackingFit::kExact, rtS, rtS, kRGBA_8888_GrPixelConfig, nullptr);
sk_sp<GrRenderTargetContext> s32RenderTargetContext = context->makeRenderTargetContext(
SkBackingFit::kExact, rtS, rtS, kSRGBA_8888_GrPixelConfig, std::move(srgbColorSpace));
SkRect rect = SkRect::MakeWH(SkIntToScalar(rtS), SkIntToScalar(rtS));
GrNoClip noClip;
GrPaint paint;
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
GrTextureParams mipMapParams(SkShader::kRepeat_TileMode, GrTextureParams::kMipMap_FilterMode);
paint.addColorTextureProcessor(texture, nullptr, SkMatrix::MakeScale(0.5f), mipMapParams);
// 1) Draw texture to S32 surface (should generate/use sRGB mips)
paint.setGammaCorrect(true);
s32RenderTargetContext->drawRect(noClip, paint, SkMatrix::I(), rect);
read_and_check_pixels(reporter, s32RenderTargetContext->asTexture().get(), expectedSRGB, error,
"first render of sRGB");
// 2) Draw texture to L32 surface (should generate/use linear mips)
paint.setGammaCorrect(false);
l32RenderTargetContext->drawRect(noClip, paint, SkMatrix::I(), rect);
read_and_check_pixels(reporter, l32RenderTargetContext->asTexture().get(), expectedLinear,
error, "re-render as linear");
// 3) Go back to sRGB
paint.setGammaCorrect(true);
s32RenderTargetContext->drawRect(noClip, paint, SkMatrix::I(), rect);
read_and_check_pixels(reporter, s32RenderTargetContext->asTexture().get(), expectedSRGB, error,
"re-render as sRGB");
}
