Exemplo n.º 1
0
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);
    }
}
Exemplo n.º 2
0
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;
}
Exemplo n.º 3
0
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);
}