diff options
Diffstat (limited to 'src')
-rwxr-xr-x | src/effects/SkTestImageFilters.cpp | 79 |
1 files changed, 39 insertions, 40 deletions
diff --git a/src/effects/SkTestImageFilters.cpp b/src/effects/SkTestImageFilters.cpp index f1ac33bcd7..e9ec7c19ce 100755 --- a/src/effects/SkTestImageFilters.cpp +++ b/src/effects/SkTestImageFilters.cpp @@ -7,22 +7,36 @@ #include "SkTestImageFilters.h" #include "SkCanvas.h" +#include "SkDevice.h" #include "SkReadBuffer.h" -#include "SkSpecialImage.h" -#include "SkSpecialSurface.h" #include "SkWriteBuffer.h" +// Simple helper canvas that "takes ownership" of the provided device, so that +// when this canvas goes out of scope, so will its device. Could be replaced +// with the following: +// +// SkCanvas canvas(device); +// SkAutoTUnref<SkBaseDevice> aur(device); +// +class OwnDeviceCanvas : public SkCanvas { +public: + OwnDeviceCanvas(SkBaseDevice* device) : SkCanvas(device) { + SkSafeUnref(device); + } +}; + /////////////////////////////////////////////////////////////////////////////// -sk_sp<SkSpecialImage> SkDownSampleImageFilter::onFilterImage(SkSpecialImage* source, - const Context& ctx, - SkIPoint* offset) const { - if (fScale > SK_Scalar1 || fScale <= 0) { - return nullptr; +bool SkDownSampleImageFilter::onFilterImageDeprecated(Proxy* proxy, const SkBitmap& src, + const Context&, + SkBitmap* result, SkIPoint*) const { + SkScalar scale = fScale; + if (scale > SK_Scalar1 || scale <= 0) { + return false; } - int dstW = SkScalarRoundToInt(source->width() * fScale); - int dstH = SkScalarRoundToInt(source->height() * fScale); + int dstW = SkScalarRoundToInt(src.width() * scale); + int dstH = SkScalarRoundToInt(src.height() * scale); if (dstW < 1) { dstW = 1; } @@ -30,50 +44,35 @@ sk_sp<SkSpecialImage> SkDownSampleImageFilter::onFilterImage(SkSpecialImage* sou dstH = 1; } - sk_sp<SkSpecialImage> tmp; + SkBitmap tmp; // downsample { - const SkImageInfo info = SkImageInfo::MakeN32Premul(dstW, dstH); - - sk_sp<SkSpecialSurface> surf(source->makeSurface(info)); - if (!surf) { - return nullptr; + SkBaseDevice* dev = proxy->createDevice(dstW, dstH); + if (nullptr == dev) { + return false; } - - SkCanvas* canvas = surf->getCanvas(); - SkASSERT(canvas); - + OwnDeviceCanvas canvas(dev); SkPaint paint; - paint.setXfermodeMode(SkXfermode::kSrcOver_Mode); - paint.setFilterQuality(kLow_SkFilterQuality); - - canvas->scale(fScale, fScale); - source->draw(canvas, 0, 0, &paint); - tmp = surf->makeImageSnapshot(); + paint.setFilterQuality(kLow_SkFilterQuality); + canvas.scale(scale, scale); + canvas.drawBitmap(src, 0, 0, &paint); + tmp = dev->accessBitmap(false); } // upscale { - const SkImageInfo info = SkImageInfo::MakeN32Premul(source->width(), source->height()); - - sk_sp<SkSpecialSurface> surf(source->makeSurface(info)); - if (!surf) { - return nullptr; + SkBaseDevice* dev = proxy->createDevice(src.width(), src.height()); + if (nullptr == dev) { + return false; } + OwnDeviceCanvas canvas(dev); - SkCanvas* canvas = surf->getCanvas(); - SkASSERT(canvas); - - SkPaint paint; - paint.setXfermodeMode(SkXfermode::kSrcOver_Mode); - - canvas->scale(SkScalarInvert(fScale), SkScalarInvert(fScale)); - tmp->draw(canvas, 0, 0, &paint); - - return surf->makeImageSnapshot(); + canvas.drawBitmapRect(tmp, SkRect::MakeIWH(src.width(), src.height()), nullptr); + *result = dev->accessBitmap(false); } + return true; } sk_sp<SkFlattenable> SkDownSampleImageFilter::CreateProc(SkReadBuffer& buffer) { |