C++ (Cpp) WebTextureUpdater示例

示例#1

文件： Canvas2DLayerBridge.cpp 项目： yang-bo/webkit

unsigned Canvas2DLayerBridge::prepareTexture(WebTextureUpdater& updater)
{
    m_context->makeContextCurrent();

    if (m_canvas) {
        TRACE_EVENT0("cc", "Canvas2DLayerBridge::SkCanvas::flush");
        m_canvas->flush();
    }

    m_context->flush();

    if (m_useDoubleBuffering) {
        updater.appendCopy(m_backBufferTexture, m_frontBufferTexture, m_size);
        return m_frontBufferTexture;
    }

    return m_backBufferTexture;
}

示例#2

unsigned Canvas2DLayerBridge::prepareTexture(WebTextureUpdater& updater)
{
    m_context->makeContextCurrent();

    if (m_canvas) {
        TRACE_EVENT0("cc", "Canvas2DLayerBridge::SkCanvas::flush");
        m_canvas->flush();
    }

    m_context->flush();

    if (m_useDoubleBuffering) {
        updater.appendCopy(m_backBufferTexture, m_frontBufferTexture, m_size);
        return m_frontBufferTexture;
    }

    if (m_canvas) {
        // Notify skia that the state of the backing store texture object will be touched by the compositor
        GrRenderTarget* renderTarget = reinterpret_cast<GrRenderTarget*>(m_canvas->getDevice()->accessRenderTarget());
        if (renderTarget)
            renderTarget->asTexture()->invalidateCachedState();
    }
    return m_backBufferTexture;
}