void test_copy_to_surface(skiatest::Reporter* reporter, GrProxyProvider* proxyProvider,
GrSurfaceContext* dstContext, const char* testName) {
int pixelCnt = dstContext->width() * dstContext->height();
SkAutoTMalloc<uint32_t> pixels(pixelCnt);
for (int y = 0; y < dstContext->width(); ++y) {
for (int x = 0; x < dstContext->height(); ++x) {
pixels.get()[y * dstContext->width() + x] =
GrPremulColor(GrColorPackRGBA(y, x, x * y, 2*y));
}
}
GrSurfaceDesc copySrcDesc;
copySrcDesc.fWidth = dstContext->width();
copySrcDesc.fHeight = dstContext->height();
copySrcDesc.fConfig = kRGBA_8888_GrPixelConfig;
for (auto flags : { kNone_GrSurfaceFlags, kRenderTarget_GrSurfaceFlag }) {
copySrcDesc.fFlags = flags;
copySrcDesc.fOrigin = (kNone_GrSurfaceFlags == flags) ? kTopLeft_GrSurfaceOrigin
: kBottomLeft_GrSurfaceOrigin;
sk_sp<GrTextureProxy> src = proxyProvider->createTextureProxy(copySrcDesc, SkBudgeted::kYes,
pixels.get(), 0);
dstContext->copy(src.get());
test_read_pixels(reporter, dstContext, pixels.get(), testName);
}
}
const GrFragmentProcessor* SkModeColorFilter::asFragmentProcessor(GrContext*) const {
if (SkXfermode::kDst_Mode == fMode) {
return nullptr;
}
SkAutoTUnref<const GrFragmentProcessor> constFP(
GrConstColorProcessor::Create(SkColorToPremulGrColor(fColor),
GrConstColorProcessor::kIgnore_InputMode));
const GrFragmentProcessor* fp =
GrXfermodeFragmentProcessor::CreateFromSrcProcessor(constFP, fMode);
if (!fp) {
return nullptr;
}
#ifdef SK_DEBUG
// With a solid color input this should always be able to compute the blended color
// (at least for coeff modes)
if (fMode <= SkXfermode::kLastCoeffMode) {
static SkRandom gRand;
GrInvariantOutput io(GrPremulColor(gRand.nextU()), kRGBA_GrColorComponentFlags,
false);
fp->computeInvariantOutput(&io);
SkASSERT(io.validFlags() == kRGBA_GrColorComponentFlags);
}
#endif
return fp;
}
void test_write_pixels(skiatest::Reporter* reporter,
GrSurfaceContext* dstContext, bool expectedToWork,
const char* testName) {
int pixelCnt = dstContext->width() * dstContext->height();
SkAutoTMalloc<uint32_t> pixels(pixelCnt);
for (int y = 0; y < dstContext->width(); ++y) {
for (int x = 0; x < dstContext->height(); ++x) {
pixels.get()[y * dstContext->width() + x] =
GrPremulColor(GrColorPackRGBA(x, y, x + y, 2*y));
}
}
SkImageInfo ii = SkImageInfo::Make(dstContext->width(), dstContext->height(),
kRGBA_8888_SkColorType, kPremul_SkAlphaType);
bool write = dstContext->writePixels(ii, pixels.get(), 0, 0, 0);
if (!write) {
if (expectedToWork) {
ERRORF(reporter, "%s: Error writing to texture.", testName);
}
return;
}
if (write && !expectedToWork) {
ERRORF(reporter, "%s: writePixels succeeded when it wasn't supposed to.", testName);
return;
}
test_read_pixels(reporter, dstContext, pixels.get(), testName);
}