C++ GrBackendTexture::isValid方法代码示例

sk_sp<GrTextureProxy> GrAHardwareBufferImageGenerator::makeProxy(GrContext* context) {
    if (context->abandoned()) {
        return nullptr;
    }

    GrPixelConfig pixelConfig;
    GrBackendFormat backendFormat = get_backend_format(context->contextPriv().getBackend(),
                                                       fBufferFormat);
    if (!context->contextPriv().caps()->getConfigFromBackendFormat(
            backendFormat, this->getInfo().colorType(), &pixelConfig)) {
        return nullptr;
    }

    int width = this->getInfo().width();
    int height = this->getInfo().height();

    GrSurfaceDesc desc;
    desc.fWidth = width;
    desc.fHeight = height;
    desc.fConfig = pixelConfig;

    GrTextureType textureType = GrTextureType::k2D;
    if (context->contextPriv().getBackend() == kOpenGL_GrBackend) {
        textureType = GrTextureType::kExternal;
    }

    auto proxyProvider = context->contextPriv().proxyProvider();

    AHardwareBuffer* hardwareBuffer = fHardwareBuffer;
    AHardwareBuffer_acquire(hardwareBuffer);

    const bool isProtectedContent = fIsProtectedContent;

    sk_sp<GrTextureProxy> texProxy = proxyProvider->createLazyProxy(
            [context, hardwareBuffer, width, height, pixelConfig, isProtectedContent, backendFormat]
            (GrResourceProvider* resourceProvider) {
                if (!resourceProvider) {
                    AHardwareBuffer_release(hardwareBuffer);
                    return sk_sp<GrTexture>();
                }

                DeleteImageProc deleteImageProc = nullptr;
                DeleteImageCtx deleteImageCtx = nullptr;

                GrBackendTexture backendTex = make_backend_texture(context, hardwareBuffer,
                                                                   width, height, pixelConfig,
                                                                   &deleteImageProc,
                                                                   &deleteImageCtx,
                                                                   isProtectedContent,
                                                                   backendFormat);
                if (!backendTex.isValid()) {
                    return sk_sp<GrTexture>();
                }
                SkASSERT(deleteImageProc && deleteImageCtx);

                backendTex.fConfig = pixelConfig;
                sk_sp<GrTexture> tex = resourceProvider->wrapBackendTexture(backendTex);
                if (!tex) {
                    deleteImageProc(deleteImageCtx);
                    return sk_sp<GrTexture>();
                }

                if (deleteImageProc) {
                    sk_sp<GrReleaseProcHelper> releaseProcHelper(
                            new GrReleaseProcHelper(deleteImageProc, deleteImageCtx));
                    tex->setRelease(releaseProcHelper);
                }

                return tex;
            },
            desc, fSurfaceOrigin, GrMipMapped::kNo, textureType, SkBackingFit::kExact,
            SkBudgeted::kNo);

    if (!texProxy) {
        AHardwareBuffer_release(hardwareBuffer);
    }
    return texProxy;
}

DEF_GPUTEST_FOR_RENDERING_CONTEXTS(PromiseImageTest, reporter, ctxInfo) {
    const int kWidth = 10;
    const int kHeight = 10;

    GrContext* ctx = ctxInfo.grContext();
    GrGpu* gpu = ctx->contextPriv().getGpu();

    for (bool releaseImageEarly : {true, false}) {
        GrBackendTexture backendTex = gpu->createTestingOnlyBackendTexture(
                nullptr, kWidth, kHeight, kRGBA_8888_GrPixelConfig, true, GrMipMapped::kNo);
        REPORTER_ASSERT(reporter, backendTex.isValid());

        GrBackendFormat backendFormat = backendTex.format();
        REPORTER_ASSERT(reporter, backendFormat.isValid());

        PromiseTextureChecker promiseChecker(backendTex);
        GrSurfaceOrigin texOrigin = kTopLeft_GrSurfaceOrigin;
        sk_sp<SkImage> refImg(
                SkImage_Gpu::MakePromiseTexture(ctx, backendFormat, kWidth, kHeight,
                                                GrMipMapped::kNo, texOrigin,
                                                kRGBA_8888_SkColorType, kPremul_SkAlphaType,
                                                nullptr,
                                                PromiseTextureChecker::Fulfill,
                                                PromiseTextureChecker::Release,
                                                PromiseTextureChecker::Done,
                                                &promiseChecker));

        SkImageInfo info = SkImageInfo::MakeN32Premul(kWidth, kHeight);
        sk_sp<SkSurface> surface = SkSurface::MakeRenderTarget(ctx, SkBudgeted::kNo, info);
        SkCanvas* canvas = surface->getCanvas();

        int expectedFulfillCnt = 0;
        int expectedReleaseCnt = 0;
        int expectedDoneCnt = 0;

        canvas->drawImage(refImg, 0, 0);
        REPORTER_ASSERT(reporter, check_fulfill_and_release_cnts(promiseChecker,
                                                                 true,
                                                                 expectedFulfillCnt,
                                                                 expectedReleaseCnt,
                                                                 true,
                                                                 expectedDoneCnt,
                                                                 reporter));

        bool isVulkan = kVulkan_GrBackend == ctx->contextPriv().getBackend();
        canvas->flush();
        expectedFulfillCnt++;
        expectedReleaseCnt++;
        REPORTER_ASSERT(reporter, check_fulfill_and_release_cnts(promiseChecker,
                                                                 !isVulkan,
                                                                 expectedFulfillCnt,
                                                                 expectedReleaseCnt,
                                                                 !isVulkan,
                                                                 expectedDoneCnt,
                                                                 reporter));

        gpu->testingOnly_flushGpuAndSync();
        REPORTER_ASSERT(reporter, check_fulfill_and_release_cnts(promiseChecker,
                                                                 true,
                                                                 expectedFulfillCnt,
                                                                 expectedReleaseCnt,
                                                                 true,
                                                                 expectedDoneCnt,
                                                                 reporter));

        canvas->drawImage(refImg, 0, 0);
        canvas->drawImage(refImg, 0, 0);

        canvas->flush();
        expectedFulfillCnt++;
        expectedReleaseCnt++;

        gpu->testingOnly_flushGpuAndSync();
        REPORTER_ASSERT(reporter, check_fulfill_and_release_cnts(promiseChecker,
                                                                 true,
                                                                 expectedFulfillCnt,
                                                                 expectedReleaseCnt,
                                                                 true,
                                                                 expectedDoneCnt,
                                                                 reporter));

        // Now test code path on Vulkan where we released the texture, but the GPU isn't done with
        // resource yet and we do another draw. We should only call fulfill on the first draw and
        // use the cached GrBackendTexture on the second. Release should only be called after the
        // second draw is finished.
        canvas->drawImage(refImg, 0, 0);
        canvas->flush();
        expectedFulfillCnt++;
        expectedReleaseCnt++;
        REPORTER_ASSERT(reporter, check_fulfill_and_release_cnts(promiseChecker,
                                                                 !isVulkan,
                                                                 expectedFulfillCnt,
                                                                 expectedReleaseCnt,
                                                                 !isVulkan,
                                                                 expectedDoneCnt,
                                                                 reporter));

        canvas->drawImage(refImg, 0, 0);

        if (releaseImageEarly) {
//.........这里部分代码省略.........

GrBackendFormat GrCaps::createFormatFromBackendTexture(const GrBackendTexture& backendTex) const {
    if (!backendTex.isValid()) {
        return GrBackendFormat();
    }
    return this->onCreateFormatFromBackendTexture(backendTex);
}

DEF_GPUTEST_FOR_VULKAN_CONTEXT(VkImageLayoutTest, reporter, ctxInfo) {
    GrContext* context = ctxInfo.grContext();
    GrVkGpu* gpu = static_cast<GrVkGpu*>(context->contextPriv().getGpu());

    GrBackendTexture backendTex = gpu->createTestingOnlyBackendTexture(nullptr, 1, 1,
                                                                       kRGBA_8888_GrPixelConfig,
                                                                       false,
                                                                       GrMipMapped::kNo);
    REPORTER_ASSERT(reporter, backendTex.isValid());

    GrVkImageInfo info;
    REPORTER_ASSERT(reporter, backendTex.getVkImageInfo(&info));
    VkImageLayout initLayout = info.fImageLayout;

    // Verify that setting that layout via a copy of a backendTexture is reflected in all the
    // backendTextures.
    GrBackendTexture backendTexCopy = backendTex;
    REPORTER_ASSERT(reporter, backendTexCopy.getVkImageInfo(&info));
    REPORTER_ASSERT(reporter, initLayout == info.fImageLayout);

    backendTexCopy.setVkImageLayout(VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);

    REPORTER_ASSERT(reporter, backendTex.getVkImageInfo(&info));
    REPORTER_ASSERT(reporter, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL == info.fImageLayout);

    REPORTER_ASSERT(reporter, backendTexCopy.getVkImageInfo(&info));
    REPORTER_ASSERT(reporter, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL == info.fImageLayout);

    // Setting back the layout since we didn't actually change it
    backendTex.setVkImageLayout(initLayout);

    sk_sp<SkImage> wrappedImage = SkImage::MakeFromTexture(context, backendTex,
                                                           kTopLeft_GrSurfaceOrigin,
                                                           kRGBA_8888_SkColorType,
                                                           kPremul_SkAlphaType, nullptr);
    REPORTER_ASSERT(reporter, wrappedImage.get());

    sk_sp<GrTextureProxy> texProxy = as_IB(wrappedImage)->asTextureProxyRef();
    REPORTER_ASSERT(reporter, texProxy.get());
    REPORTER_ASSERT(reporter, texProxy->priv().isInstantiated());
    GrTexture* texture = texProxy->priv().peekTexture();
    REPORTER_ASSERT(reporter, texture);

    // Verify that modifying the layout via the GrVkTexture is reflected in the GrBackendTexture
    GrVkTexture* vkTexture = static_cast<GrVkTexture*>(texture);
    REPORTER_ASSERT(reporter, initLayout == vkTexture->currentLayout());
    vkTexture->updateImageLayout(VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL);

    REPORTER_ASSERT(reporter, backendTex.getVkImageInfo(&info));
    REPORTER_ASSERT(reporter, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL == info.fImageLayout);

    GrBackendTexture backendTexImage = wrappedImage->getBackendTexture(false);
    REPORTER_ASSERT(reporter, backendTexImage.getVkImageInfo(&info));
    REPORTER_ASSERT(reporter, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL == info.fImageLayout);

    // Verify that modifying the layout via the GrBackendTexutre is reflected in the GrVkTexture
    backendTexImage.setVkImageLayout(VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
    REPORTER_ASSERT(reporter, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL == vkTexture->currentLayout());

#ifdef SK_SUPPORT_LEGACY_BACKEND_OBJECTS
    // Verify that modifying the layout via the old textureHandle sitll works in is reflected in the
    // GrVkTexture and GrBackendTexture.
    GrVkImageInfo* backendInfo = (GrVkImageInfo*)wrappedImage->getTextureHandle(false);
    REPORTER_ASSERT(reporter, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL == backendInfo->fImageLayout);

    backendInfo->updateImageLayout(VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
    REPORTER_ASSERT(reporter,
                    VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL == vkTexture->currentLayout());
    REPORTER_ASSERT(reporter, backendTexImage.getVkImageInfo(&info));
    REPORTER_ASSERT(reporter, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL == info.fImageLayout);
#endif

    vkTexture->updateImageLayout(initLayout);

    REPORTER_ASSERT(reporter, backendTex.getVkImageInfo(&info));
    REPORTER_ASSERT(reporter, initLayout == info.fImageLayout);

    REPORTER_ASSERT(reporter, backendTexCopy.getVkImageInfo(&info));
    REPORTER_ASSERT(reporter, initLayout == info.fImageLayout);

    REPORTER_ASSERT(reporter, backendTexImage.getVkImageInfo(&info));
    REPORTER_ASSERT(reporter, initLayout == info.fImageLayout);

    // Check that we can do things like assigning the backend texture to invalid one, assign an
    // invalid one, assin a backend texture to inself etc. Success here is that we don't hit any of
    // our ref counting asserts.
    REPORTER_ASSERT(reporter, GrBackendTexture::TestingOnly_Equals(backendTex, backendTexCopy));

    GrBackendTexture invalidTexture;
    REPORTER_ASSERT(reporter, !invalidTexture.isValid());
    REPORTER_ASSERT(reporter, !GrBackendTexture::TestingOnly_Equals(invalidTexture, backendTexCopy));

    backendTexCopy = invalidTexture;
    REPORTER_ASSERT(reporter, !backendTexCopy.isValid());
    REPORTER_ASSERT(reporter, !GrBackendTexture::TestingOnly_Equals(invalidTexture, backendTexCopy));

    invalidTexture = backendTex;
    REPORTER_ASSERT(reporter, invalidTexture.isValid());
    REPORTER_ASSERT(reporter, GrBackendTexture::TestingOnly_Equals(invalidTexture, backendTex));

//.........这里部分代码省略.........