Merge "Ensure GL & Gralloc both support FP16 before using it" into pi-dev

    GLuint mTexture = 0;

};

static bool isFP16Supported(const sk_sp<GrContext>& grContext) {

    static std::once_flag sOnceFlag;

    static bool supported = false;

    std::call_once(sOnceFlag, [](const sk_sp<GrContext>& grContext) {

        if (!grContext->caps()->isConfigTexturable(kRGBA_half_GrPixelConfig)) {

            supported = false;

            return;

        }

        sp<GraphicBuffer> buffer = new GraphicBuffer(1, 1, PIXEL_FORMAT_RGBA_FP16,

                GraphicBuffer::USAGE_HW_TEXTURE | GraphicBuffer::USAGE_SW_WRITE_NEVER |

                        GraphicBuffer::USAGE_SW_READ_NEVER, "tempFp16Buffer");

        status_t error = buffer->initCheck();

        supported = !error;

    }, grContext);

    return supported;

}

sk_sp<Bitmap> SkiaOpenGLPipeline::allocateHardwareBitmap(renderthread::RenderThread& renderThread,

                                                         SkBitmap& skBitmap) {

    renderThread.eglManager().initialize();

            type = GL_UNSIGNED_BYTE;

            break;

        case kRGBA_F16_SkColorType:

            isSupported = grContext->caps()->isConfigTexturable(kRGBA_half_GrPixelConfig);

            isSupported = isFP16Supported(grContext);

            if (isSupported) {

                type = GL_HALF_FLOAT;

                pixelFormat = PIXEL_FORMAT_RGBA_FP16;