C++ GrContext::priv方法代码示例

DEF_GPUTEST_FOR_RENDERING_CONTEXTS(TextureProxyTest, reporter, ctxInfo) {
    GrContext* context = ctxInfo.grContext();
    GrProxyProvider* proxyProvider = context->priv().proxyProvider();
    GrResourceCache* cache = context->priv().getResourceCache();

    REPORTER_ASSERT(reporter, !proxyProvider->numUniqueKeyProxies_TestOnly());
    REPORTER_ASSERT(reporter, 0 == cache->getResourceCount());

    for (auto fit : { SkBackingFit::kExact, SkBackingFit::kApprox }) {
        for (auto create : { deferred_tex, deferred_texRT, wrapped, wrapped_with_key }) {
            REPORTER_ASSERT(reporter, 0 == cache->getResourceCount());
            basic_test(context, reporter, create(reporter, context, proxyProvider, fit));
        }

        REPORTER_ASSERT(reporter, 0 == cache->getResourceCount());
        sk_sp<GrTexture> backingTex;
        sk_sp<GrTextureProxy> proxy = create_wrapped_backend(context, fit, &backingTex);
        basic_test(context, reporter, std::move(proxy));

        backingTex = nullptr;
        cache->purgeAllUnlocked();
    }

    invalidation_test(context, reporter);
    invalidation_and_instantiation_test(context, reporter);
}

// Tests that MIP maps are created and invalidated as expected when drawing to and from GrTextures.
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(GrTextureMipMapInvalidationTest, reporter, ctxInfo) {
    GrContext* context = ctxInfo.grContext();
    if (!context->priv().caps()->mipMapSupport()) {
        return;
    }

    auto isMipped = [] (SkSurface* surf) {
        const GrTexture* texture = surf->makeImageSnapshot()->getTexture();
        return GrMipMapped::kYes == texture->texturePriv().mipMapped();
    };

    auto mipsAreDirty = [] (SkSurface* surf) {
        return surf->makeImageSnapshot()->getTexture()->texturePriv().mipMapsAreDirty();
    };

    auto info = SkImageInfo::MakeN32Premul(256, 256);
    for (auto allocateMips : {false, true}) {
        auto surf1 = SkSurface::MakeRenderTarget(context, SkBudgeted::kYes, info, 0,
                                                 kBottomLeft_GrSurfaceOrigin, nullptr,
                                                 allocateMips);
        auto surf2 = SkSurface::MakeRenderTarget(context, SkBudgeted::kYes, info);
        // Draw something just in case we ever had a solid color optimization
        surf1->getCanvas()->drawCircle(128, 128, 50, SkPaint());
        surf1->flush();

        // No mipmaps initially
        REPORTER_ASSERT(reporter, isMipped(surf1.get()) == allocateMips);

        // Painting with downscale and medium filter quality should result in mipmap creation
        // Flush the context rather than the canvas as flushing the canvas triggers MIP level
        // generation.
        SkPaint paint;
        paint.setFilterQuality(kMedium_SkFilterQuality);
        surf2->getCanvas()->scale(0.2f, 0.2f);
        surf2->getCanvas()->drawImage(surf1->makeImageSnapshot(), 0, 0, &paint);
        context->flush();
        REPORTER_ASSERT(reporter, isMipped(surf1.get()) == allocateMips);
        REPORTER_ASSERT(reporter, !allocateMips || !mipsAreDirty(surf1.get()));

        // Changing the contents of the surface should invalidate the mipmap, but not de-allocate
        surf1->getCanvas()->drawCircle(128, 128, 100, SkPaint());
        context->flush();
        REPORTER_ASSERT(reporter, isMipped(surf1.get()) == allocateMips);
        REPORTER_ASSERT(reporter, mipsAreDirty(surf1.get()));
    }
}

DEF_GPUTEST_FOR_RENDERING_CONTEXTS(CopySurface, reporter, ctxInfo) {
    GrContext* context = ctxInfo.grContext();
    static const int kW = 10;
    static const int kH = 10;
    static const size_t kRowBytes = sizeof(uint32_t) * kW;

    SkAutoTMalloc<uint32_t> srcPixels(kW * kH);
    for (int i = 0; i < kW * kH; ++i) {
        srcPixels.get()[i] = i;
    }

    SkAutoTMalloc<uint32_t> dstPixels(kW * kH);
    for (int i = 0; i < kW * kH; ++i) {
        dstPixels.get()[i] = ~i;
    }

    static const SkIRect kSrcRects[] {
        { 0,  0, kW  , kH  },
        {-1, -1, kW+1, kH+1},
        { 1,  1, kW-1, kH-1},
        { 5,  5, 6   , 6   },
    };

    static const SkIPoint kDstPoints[] {
        { 0   ,  0   },
        { 1   ,  1   },
        { kW/2,  kH/4},
        { kW-1,  kH-1},
        { kW  ,  kH  },
        { kW+1,  kH+2},
        {-1   , -1   },
    };

    static const SkImageInfo kImageInfos[] {
        SkImageInfo::Make(kW, kH, kRGBA_8888_SkColorType, kPremul_SkAlphaType),
        SkImageInfo::Make(kW, kH, kBGRA_8888_SkColorType, kPremul_SkAlphaType)
    };

    SkAutoTMalloc<uint32_t> read(kW * kH);

    for (auto sOrigin : {kBottomLeft_GrSurfaceOrigin, kTopLeft_GrSurfaceOrigin}) {
        for (auto dOrigin : {kBottomLeft_GrSurfaceOrigin, kTopLeft_GrSurfaceOrigin}) {
            for (auto sRenderable : {GrRenderable::kYes, GrRenderable::kNo}) {
                for (auto dRenderable : {GrRenderable::kYes, GrRenderable::kNo}) {
                    for (auto srcRect : kSrcRects) {
                        for (auto dstPoint : kDstPoints) {
                            for (auto ii: kImageInfos) {
                                auto src = sk_gpu_test::MakeTextureProxyFromData(
                                        context, sRenderable, kW, kH, ii.colorType(), sOrigin,
                                        srcPixels.get(), kRowBytes);
                                auto dst = sk_gpu_test::MakeTextureProxyFromData(
                                        context, dRenderable, kW, kH, ii.colorType(), dOrigin,
                                        dstPixels.get(), kRowBytes);

                                // Should always work if the color type is RGBA, but may not work
                                // for BGRA
                                if (ii.colorType() == kRGBA_8888_SkColorType) {
                                    if (!src || !dst) {
                                        ERRORF(reporter,
                                               "Could not create surfaces for copy surface test.");
                                        continue;
                                    }
                                } else {
                                    GrPixelConfig config =
                                            SkColorType2GrPixelConfig(kBGRA_8888_SkColorType);
                                    if (!context->priv().caps()->isConfigTexturable(config)) {
                                        continue;
                                    }
                                    if (!src || !dst) {
                                        ERRORF(reporter,
                                               "Could not create surfaces for copy surface test.");
                                        continue;
                                    }
                                }

                                sk_sp<GrSurfaceContext> dstContext =
                                        context->priv().makeWrappedSurfaceContext(std::move(dst));

                                bool result = dstContext->copy(src.get(), srcRect, dstPoint);

                                bool expectedResult = true;
                                SkIPoint dstOffset = { dstPoint.fX - srcRect.fLeft,
                                                       dstPoint.fY - srcRect.fTop };
                                SkIRect copiedDstRect = SkIRect::MakeXYWH(dstPoint.fX,
                                                                          dstPoint.fY,
                                                                          srcRect.width(),
                                                                          srcRect.height());

                                SkIRect copiedSrcRect;
                                if (!copiedSrcRect.intersect(srcRect, SkIRect::MakeWH(kW, kH))) {
                                    expectedResult = false;
                                } else {
                                    // If the src rect was clipped, apply same clipping to each side
                                    // of copied dst rect.
                                    copiedDstRect.fLeft += copiedSrcRect.fLeft - srcRect.fLeft;
                                    copiedDstRect.fTop += copiedSrcRect.fTop - srcRect.fTop;
                                    copiedDstRect.fRight -= copiedSrcRect.fRight - srcRect.fRight;
                                    copiedDstRect.fBottom -= copiedSrcRect.fBottom -
                                                             srcRect.fBottom;
                                }
//.........这里部分代码省略.........

DEF_GPUTEST_FOR_RENDERING_CONTEXTS(WrappedProxyTest, reporter, ctxInfo) {
    GrProxyProvider* proxyProvider = ctxInfo.grContext()->priv().proxyProvider();
    GrContext* context = ctxInfo.grContext();
    GrResourceProvider* resourceProvider = context->priv().resourceProvider();
    GrGpu* gpu = context->priv().getGpu();
    const GrCaps& caps = *context->priv().caps();

    static const int kWidthHeight = 100;

    for (auto origin : { kBottomLeft_GrSurfaceOrigin, kTopLeft_GrSurfaceOrigin }) {
        for (auto colorType : { kAlpha_8_SkColorType, kRGBA_8888_SkColorType,
                                kRGBA_1010102_SkColorType }) {
            // External on-screen render target.
            // Tests wrapBackendRenderTarget with a GrBackendRenderTarget
            // Our test-only function that creates a backend render target doesn't currently support
            // sample counts :(.
            if (ctxInfo.grContext()->colorTypeSupportedAsSurface(colorType)) {
                GrBackendRenderTarget backendRT = gpu->createTestingOnlyBackendRenderTarget(
                        kWidthHeight, kWidthHeight, SkColorTypeToGrColorType(colorType));
                sk_sp<GrSurfaceProxy> sProxy(
                        proxyProvider->wrapBackendRenderTarget(backendRT, origin, nullptr,
                                                               nullptr));
                check_surface(reporter, sProxy.get(), origin, kWidthHeight, kWidthHeight,
                              backendRT.pixelConfig(), SkBudgeted::kNo);
                static constexpr int kExpectedNumSamples = 1;
                check_rendertarget(reporter, caps, resourceProvider, sProxy->asRenderTargetProxy(),
                                   kExpectedNumSamples, SkBackingFit::kExact,
                                   caps.maxWindowRectangles());
                gpu->deleteTestingOnlyBackendRenderTarget(backendRT);
            }

            for (auto numSamples : {1, 4}) {
                GrPixelConfig config = SkColorType2GrPixelConfig(colorType);
                SkASSERT(kUnknown_GrPixelConfig != config);
                int supportedNumSamples = caps.getRenderTargetSampleCount(numSamples, config);

                if (!supportedNumSamples) {
                    continue;
                }

                // Test wrapping FBO 0 (with made up properties). This tests sample count and the
                // special case where FBO 0 doesn't support window rectangles.
                if (GrBackendApi::kOpenGL == ctxInfo.backend()) {
                    GrGLFramebufferInfo fboInfo;
                    fboInfo.fFBOID = 0;
                    fboInfo.fFormat = GR_GL_RGBA8;
                    static constexpr int kStencilBits = 8;
                    GrBackendRenderTarget backendRT(kWidthHeight, kWidthHeight, numSamples,
                                                    kStencilBits, fboInfo);
                    backendRT.setPixelConfig(config);
                    sk_sp<GrSurfaceProxy> sProxy(
                            proxyProvider->wrapBackendRenderTarget(backendRT, origin, nullptr,
                                                                   nullptr));
                    check_surface(reporter, sProxy.get(), origin,
                                  kWidthHeight, kWidthHeight,
                                  backendRT.pixelConfig(), SkBudgeted::kNo);
                    check_rendertarget(reporter, caps, resourceProvider,
                                       sProxy->asRenderTargetProxy(),
                                       supportedNumSamples, SkBackingFit::kExact, 0);
                }

                // Tests wrapBackendRenderTarget with a GrBackendTexture
                {
                    GrBackendTexture backendTex =
                            context->createBackendTexture(kWidthHeight, kWidthHeight,
                                                          colorType,
                                                          GrMipMapped::kNo,
                                                          GrRenderable::kYes);
                    sk_sp<GrSurfaceProxy> sProxy = proxyProvider->wrapBackendTextureAsRenderTarget(
                            backendTex, origin, supportedNumSamples);
                    if (!sProxy) {
                        context->deleteBackendTexture(backendTex);
                        continue;  // This can fail on Mesa
                    }

                    check_surface(reporter, sProxy.get(), origin,
                                  kWidthHeight, kWidthHeight,
                                  backendTex.pixelConfig(), SkBudgeted::kNo);
                    check_rendertarget(reporter, caps, resourceProvider,
                                       sProxy->asRenderTargetProxy(),
                                       supportedNumSamples, SkBackingFit::kExact,
                                       caps.maxWindowRectangles());

                    context->deleteBackendTexture(backendTex);
                }

                // Tests wrapBackendTexture that is only renderable
                {
                    GrBackendTexture backendTex =
                            context->createBackendTexture(kWidthHeight, kWidthHeight,
                                                          colorType,
                                                          GrMipMapped::kNo,
                                                          GrRenderable::kYes);

                    sk_sp<GrSurfaceProxy> sProxy = proxyProvider->wrapRenderableBackendTexture(
                            backendTex, origin, supportedNumSamples, kBorrow_GrWrapOwnership,
                            GrWrapCacheable::kNo, nullptr, nullptr);
                    if (!sProxy) {
                        context->deleteBackendTexture(backendTex);
                        continue;  // This can fail on Mesa
//.........这里部分代码省略.........