Decouple SurfaceTexture from HWUI
Move SurfaceTexture implementation from HWUI to libgui.
Remove all Skia and HWUI types from SurfaceTexture
implementation. Refactor dequeueBuffer to take C types and
additional arguments for release and dequeue fences.
Test: pass CtsUiRenderingTestCases and CtsViewTestCases
Bug: 136263580
Change-Id: Id9f052dd745ea59868ab48466d688a132bad2b1e
diff --git a/libs/gui/surfacetexture/ImageConsumer.cpp b/libs/gui/surfacetexture/ImageConsumer.cpp
new file mode 100644
index 0000000..4bc4a7b
--- /dev/null
+++ b/libs/gui/surfacetexture/ImageConsumer.cpp
@@ -0,0 +1,121 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gui/BufferQueue.h>
+#include <gui/surfacetexture/ImageConsumer.h>
+#include <gui/surfacetexture/SurfaceTexture.h>
+
+// Macro for including the SurfaceTexture name in log messages
+#define IMG_LOGE(x, ...) ALOGE("[%s] " x, st.mName.string(), ##__VA_ARGS__)
+
+namespace android {
+
+void ImageConsumer::onReleaseBufferLocked(int buf) {
+ mImageSlots[buf].eglFence() = EGL_NO_SYNC_KHR;
+}
+
+sp<GraphicBuffer> ImageConsumer::dequeueBuffer(int* outSlotid, android_dataspace* outDataspace,
+ bool* outQueueEmpty, SurfaceTexture& st,
+ SurfaceTexture_createReleaseFence createFence,
+ SurfaceTexture_fenceWait fenceWait,
+ void* fencePassThroughHandle) {
+ BufferItem item;
+ status_t err;
+ err = st.acquireBufferLocked(&item, 0);
+ if (err != OK) {
+ if (err != BufferQueue::NO_BUFFER_AVAILABLE) {
+ IMG_LOGE("Error acquiring buffer: %s (%d)", strerror(err), err);
+ } else {
+ int slot = st.mCurrentTexture;
+ if (slot != BufferItem::INVALID_BUFFER_SLOT) {
+ *outQueueEmpty = true;
+ *outDataspace = st.mCurrentDataSpace;
+ *outSlotid = slot;
+ return st.mSlots[slot].mGraphicBuffer;
+ }
+ }
+ return nullptr;
+ }
+
+ int slot = item.mSlot;
+ if (item.mFence->isValid()) {
+ // Wait on the producer fence for the buffer to be ready.
+ err = fenceWait(item.mFence->get(), fencePassThroughHandle);
+ if (err != OK) {
+ st.releaseBufferLocked(slot, st.mSlots[slot].mGraphicBuffer, EGL_NO_DISPLAY,
+ EGL_NO_SYNC_KHR);
+ return nullptr;
+ }
+ }
+
+ // Release old buffer.
+ if (st.mCurrentTexture != BufferItem::INVALID_BUFFER_SLOT) {
+ // If needed, set the released slot's fence to guard against a producer
+ // accessing the buffer before the outstanding accesses have completed.
+ int releaseFenceId = -1;
+ EGLDisplay display = EGL_NO_DISPLAY;
+ err = createFence(st.mUseFenceSync, &mImageSlots[slot].eglFence(), &display,
+ &releaseFenceId, fencePassThroughHandle);
+ if (OK != err) {
+ st.releaseBufferLocked(slot, st.mSlots[slot].mGraphicBuffer, EGL_NO_DISPLAY,
+ EGL_NO_SYNC_KHR);
+ return nullptr;
+ }
+
+ if (releaseFenceId != -1) {
+ sp<Fence> releaseFence(new Fence(releaseFenceId));
+ status_t err = st.addReleaseFenceLocked(st.mCurrentTexture,
+ st.mSlots[st.mCurrentTexture].mGraphicBuffer,
+ releaseFence);
+ if (err != OK) {
+ IMG_LOGE("dequeueImage: error adding release fence: %s (%d)", strerror(-err), err);
+ st.releaseBufferLocked(slot, st.mSlots[slot].mGraphicBuffer, EGL_NO_DISPLAY,
+ EGL_NO_SYNC_KHR);
+ return nullptr;
+ }
+ }
+
+ // Finally release the old buffer.
+ status_t status =
+ st.releaseBufferLocked(st.mCurrentTexture,
+ st.mSlots[st.mCurrentTexture].mGraphicBuffer, display,
+ mImageSlots[st.mCurrentTexture].eglFence());
+ if (status < NO_ERROR) {
+ IMG_LOGE("dequeueImage: failed to release buffer: %s (%d)", strerror(-status), status);
+ err = status;
+ // Keep going, with error raised.
+ }
+ }
+
+ // Update the state.
+ st.mCurrentTexture = slot;
+ st.mCurrentCrop = item.mCrop;
+ st.mCurrentTransform = item.mTransform;
+ st.mCurrentScalingMode = item.mScalingMode;
+ st.mCurrentTimestamp = item.mTimestamp;
+ st.mCurrentDataSpace = item.mDataSpace;
+ st.mCurrentFence = item.mFence;
+ st.mCurrentFenceTime = item.mFenceTime;
+ st.mCurrentFrameNumber = item.mFrameNumber;
+ st.computeCurrentTransformMatrixLocked();
+
+ *outQueueEmpty = false;
+ *outDataspace = item.mDataSpace;
+ *outSlotid = slot;
+ return st.mSlots[slot].mGraphicBuffer;
+}
+
+} /* namespace android */