// Basic test of the SkSpecialImage public API (e.g., peekTexture, peekPixels & draw)
static void test_image(const sk_sp<SkSpecialImage>& img, skiatest::Reporter* reporter,
GrContext* context, bool peekTextureSucceeds,
int offset, int size) {
const SkIRect subset = img->subset();
REPORTER_ASSERT(reporter, offset == subset.left());
REPORTER_ASSERT(reporter, offset == subset.top());
REPORTER_ASSERT(reporter, kSmallerSize == subset.width());
REPORTER_ASSERT(reporter, kSmallerSize == subset.height());
//--------------
// Test that peekTexture reports the correct backing type
REPORTER_ASSERT(reporter, peekTextureSucceeds == img->isTextureBacked());
#if SK_SUPPORT_GPU
//--------------
// Test getTextureAsRef - as long as there is a context this should succeed
if (context) {
sk_sp<GrTexture> texture(img->asTextureRef(context));
REPORTER_ASSERT(reporter, texture);
}
#endif
//--------------
// Test getROPixels - this should always succeed regardless of backing store
SkBitmap bitmap;
REPORTER_ASSERT(reporter, img->getROPixels(&bitmap));
if (context) {
REPORTER_ASSERT(reporter, kSmallerSize == bitmap.width());
REPORTER_ASSERT(reporter, kSmallerSize == bitmap.height());
} else {
REPORTER_ASSERT(reporter, size == bitmap.width());
REPORTER_ASSERT(reporter, size == bitmap.height());
}
//--------------
// Test that draw restricts itself to the subset
SkImageInfo info = SkImageInfo::MakeN32(kFullSize, kFullSize, kOpaque_SkAlphaType);
sk_sp<SkSpecialSurface> surf(img->makeSurface(info));
SkCanvas* canvas = surf->getCanvas();
canvas->clear(SK_ColorBLUE);
img->draw(canvas, SkIntToScalar(kPad), SkIntToScalar(kPad), nullptr);
SkBitmap bm;
bm.allocN32Pixels(kFullSize, kFullSize, true);
bool result = canvas->readPixels(bm.info(), bm.getPixels(), bm.rowBytes(), 0, 0);
SkASSERT_RELEASE(result);
// Only the center (red) portion should've been drawn into the canvas
REPORTER_ASSERT(reporter, SK_ColorBLUE == bm.getColor(kPad-1, kPad-1));
REPORTER_ASSERT(reporter, SK_ColorRED == bm.getColor(kPad, kPad));
REPORTER_ASSERT(reporter, SK_ColorRED == bm.getColor(kSmallerSize+kPad-1,
kSmallerSize+kPad-1));
REPORTER_ASSERT(reporter, SK_ColorBLUE == bm.getColor(kSmallerSize+kPad,
kSmallerSize+kPad));
//--------------
// Test that makeTightSubset & makeTightSurface return appropriately sized objects
// of the correct backing type
SkIRect newSubset = SkIRect::MakeWH(subset.width(), subset.height());
{
sk_sp<SkImage> tightImg(img->makeTightSubset(newSubset));
REPORTER_ASSERT(reporter, tightImg->width() == subset.width());
REPORTER_ASSERT(reporter, tightImg->height() == subset.height());
REPORTER_ASSERT(reporter, peekTextureSucceeds == !!tightImg->getTexture());
SkPixmap tmpPixmap;
REPORTER_ASSERT(reporter, peekTextureSucceeds != !!tightImg->peekPixels(&tmpPixmap));
}
{
SkImageInfo info = SkImageInfo::MakeN32(subset.width(), subset.height(),
kPremul_SkAlphaType);
sk_sp<SkSurface> tightSurf(img->makeTightSurface(info));
REPORTER_ASSERT(reporter, tightSurf->width() == subset.width());
REPORTER_ASSERT(reporter, tightSurf->height() == subset.height());
REPORTER_ASSERT(reporter, peekTextureSucceeds ==
!!tightSurf->getTextureHandle(SkSurface::kDiscardWrite_BackendHandleAccess));
SkPixmap tmpPixmap;
REPORTER_ASSERT(reporter, peekTextureSucceeds != !!tightSurf->peekPixels(&tmpPixmap));
}
}
