diff --git a/libs/hwui/renderthread/VulkanSurface.cpp b/libs/hwui/renderthread/VulkanSurface.cpp index 10f456745147d..3168cb09291b9 100644 --- a/libs/hwui/renderthread/VulkanSurface.cpp +++ b/libs/hwui/renderthread/VulkanSurface.cpp @@ -375,6 +375,14 @@ void VulkanSurface::releaseBuffers() { } } +void VulkanSurface::invalidateBuffers() { + for (uint32_t i = 0; i < mWindowInfo.bufferCount; i++) { + VulkanSurface::NativeBufferInfo& bufferInfo = mNativeBuffers[i]; + bufferInfo.hasValidContents = false; + bufferInfo.lastPresentedCount = 0; + } +} + VulkanSurface::NativeBufferInfo* VulkanSurface::dequeueNativeBuffer() { // Set the mCurrentBufferInfo to invalid in case of error and only reset it to the correct // value at the end of the function if everything dequeued correctly. @@ -407,6 +415,10 @@ VulkanSurface::NativeBufferInfo* VulkanSurface::dequeueNativeBuffer() { // new NativeBufferInfo storage will be populated lazily as we dequeue each new buffer. mWindowInfo.actualSize = actualSize; releaseBuffers(); + } else { + // A change in transform means we need to repaint the entire buffer area as the damage + // rects have just moved about. + invalidateBuffers(); } if (transformHint != mWindowInfo.transform) { diff --git a/libs/hwui/renderthread/VulkanSurface.h b/libs/hwui/renderthread/VulkanSurface.h index 6f5280105e550..116075c16ebaf 100644 --- a/libs/hwui/renderthread/VulkanSurface.h +++ b/libs/hwui/renderthread/VulkanSurface.h @@ -116,6 +116,7 @@ private: WindowInfo* outWindowInfo); static bool UpdateWindow(ANativeWindow* window, const WindowInfo& windowInfo); void releaseBuffers(); + void invalidateBuffers(); // TODO: This number comes from ui/BufferQueueDefs. We're not pulling the // header in so that we don't need to depend on libui, but we should share