BufferItemConsumer: Add/expose methods
Removes unneccessary flag surrounding releaseBuffer, which is flag gated
everywhere else.
Adds attachBuffer, which wraps IGBP's version of the same method,
allowing users to attach a buffer to the consumer.
Bug: 393639203
Flag: EXEMPT covered elsewhere
Test: new tests
Change-Id: I13283720f0f91380301d1aca180c4681c16997d7
diff --git a/libs/gui/BufferItemConsumer.cpp b/libs/gui/BufferItemConsumer.cpp
index 1585aae..4926ceb 100644
--- a/libs/gui/BufferItemConsumer.cpp
+++ b/libs/gui/BufferItemConsumer.cpp
@@ -17,6 +17,7 @@
//#define LOG_NDEBUG 0
#define LOG_TAG "BufferItemConsumer"
//#define ATRACE_TAG ATRACE_TAG_GRAPHICS
+#include <utils/Errors.h>
#include <utils/Log.h>
#include <inttypes.h>
@@ -132,13 +133,36 @@
return OK;
}
+status_t BufferItemConsumer::attachBuffer(const sp<GraphicBuffer>& buffer) {
+ if (!buffer) {
+ BI_LOGE("BufferItemConsumer::attachBuffer no input buffer specified.");
+ return BAD_VALUE;
+ }
+
+ Mutex::Autolock _l(mMutex);
+
+ int slot = INVALID_BUFFER_SLOT;
+ status_t status = mConsumer->attachBuffer(&slot, buffer);
+ if (status != OK) {
+ BI_LOGE("BufferItemConsumer::attachBuffer unable to attach buffer %d", status);
+ return status;
+ }
+
+ mSlots[slot] = {
+ .mGraphicBuffer = buffer,
+ .mFence = nullptr,
+ .mFrameNumber = 0,
+ };
+
+ return OK;
+}
+
status_t BufferItemConsumer::releaseBuffer(const BufferItem &item,
const sp<Fence>& releaseFence) {
Mutex::Autolock _l(mMutex);
return releaseBufferSlotLocked(item.mSlot, item.mGraphicBuffer, releaseFence);
}
-#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
status_t BufferItemConsumer::releaseBuffer(const sp<GraphicBuffer>& buffer,
const sp<Fence>& releaseFence) {
Mutex::Autolock _l(mMutex);
@@ -154,7 +178,6 @@
return releaseBufferSlotLocked(slotIndex, buffer, releaseFence);
}
-#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
status_t BufferItemConsumer::releaseBufferSlotLocked(int slotIndex, const sp<GraphicBuffer>& buffer,
const sp<Fence>& releaseFence) {
diff --git a/libs/gui/include/gui/BufferItemConsumer.h b/libs/gui/include/gui/BufferItemConsumer.h
index 0bfa7b2..fc31f46 100644
--- a/libs/gui/include/gui/BufferItemConsumer.h
+++ b/libs/gui/include/gui/BufferItemConsumer.h
@@ -96,6 +96,14 @@
status_t acquireBuffer(BufferItem* item, nsecs_t presentWhen,
bool waitForFence = true);
+ // Transfer ownership of a buffer to the BufferQueue. On NO_ERROR, the buffer
+ // is considered as if it were acquired. Buffer must not be null.
+ //
+ // Returns
+ // - BAD_VALUE if buffer is null
+ // - INVALID_OPERATION if too many buffers have already been acquired
+ status_t attachBuffer(const sp<GraphicBuffer>& buffer);
+
// Returns an acquired buffer to the queue, allowing it to be reused. Since
// only a fixed number of buffers may be acquired at a time, old buffers
// must be released by calling releaseBuffer to ensure new buffers can be
@@ -105,10 +113,8 @@
status_t releaseBuffer(const BufferItem &item,
const sp<Fence>& releaseFence = Fence::NO_FENCE);
-#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
status_t releaseBuffer(const sp<GraphicBuffer>& buffer,
const sp<Fence>& releaseFence = Fence::NO_FENCE);
-#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
protected:
#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
diff --git a/libs/gui/tests/BufferItemConsumer_test.cpp b/libs/gui/tests/BufferItemConsumer_test.cpp
index 6b887bf..80eea26 100644
--- a/libs/gui/tests/BufferItemConsumer_test.cpp
+++ b/libs/gui/tests/BufferItemConsumer_test.cpp
@@ -245,6 +245,29 @@
EXPECT_EQ(OK, mBIC->setMaxAcquiredBufferCount(kMaxLockedBuffers - 1));
}
+TEST_F(BufferItemConsumerTest, AttachBuffer) {
+ ASSERT_EQ(OK, mBIC->setMaxAcquiredBufferCount(1));
+
+ int slot;
+ DequeueBuffer(&slot);
+ QueueBuffer(slot);
+ AcquireBuffer(&slot);
+
+ sp<GraphicBuffer> newBuffer1 = sp<GraphicBuffer>::make(kWidth, kHeight, kFormat, kUsage);
+ sp<GraphicBuffer> newBuffer2 = sp<GraphicBuffer>::make(kWidth, kHeight, kFormat, kUsage);
+
+ // For some reason, you can attach an extra buffer?
+ // b/400973991 to investigate
+ EXPECT_EQ(OK, mBIC->attachBuffer(newBuffer1));
+ EXPECT_EQ(INVALID_OPERATION, mBIC->attachBuffer(newBuffer2));
+
+ ReleaseBuffer(slot);
+
+ EXPECT_EQ(OK, mBIC->attachBuffer(newBuffer2));
+ EXPECT_EQ(OK, mBIC->releaseBuffer(newBuffer1, Fence::NO_FENCE));
+ EXPECT_EQ(OK, mBIC->releaseBuffer(newBuffer2, Fence::NO_FENCE));
+}
+
#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
// Test that delete BufferItemConsumer triggers onBufferFreed.
TEST_F(BufferItemConsumerTest, DetachBufferWithBuffer) {