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-rw-r--r--libs/gui/SurfaceTexture.cpp150
1 files changed, 98 insertions, 52 deletions
diff --git a/libs/gui/SurfaceTexture.cpp b/libs/gui/SurfaceTexture.cpp
index be71c94..7ac4343 100644
--- a/libs/gui/SurfaceTexture.cpp
+++ b/libs/gui/SurfaceTexture.cpp
@@ -104,7 +104,7 @@ SurfaceTexture::SurfaceTexture(GLuint tex, bool allowSynchronousMode) :
SurfaceTexture::~SurfaceTexture() {
LOGV("SurfaceTexture::~SurfaceTexture");
- freeAllBuffers();
+ freeAllBuffersLocked();
}
status_t SurfaceTexture::setBufferCountServerLocked(int bufferCount) {
@@ -154,7 +154,6 @@ status_t SurfaceTexture::setBufferCount(int bufferCount) {
LOGE("setBufferCount: SurfaceTexture has been abandoned!");
return NO_INIT;
}
-
if (bufferCount > NUM_BUFFER_SLOTS) {
LOGE("setBufferCount: bufferCount larger than slots available");
return BAD_VALUE;
@@ -185,7 +184,7 @@ status_t SurfaceTexture::setBufferCount(int bufferCount) {
// here we're guaranteed that the client doesn't have dequeued buffers
// and will release all of its buffer references.
- freeAllBuffers();
+ freeAllBuffersLocked();
mBufferCount = bufferCount;
mClientBufferCount = bufferCount;
mCurrentTexture = INVALID_BUFFER_SLOT;
@@ -228,11 +227,6 @@ status_t SurfaceTexture::dequeueBuffer(int *outBuf, uint32_t w, uint32_t h,
uint32_t format, uint32_t usage) {
LOGV("SurfaceTexture::dequeueBuffer");
- if (mAbandoned) {
- LOGE("dequeueBuffer: SurfaceTexture has been abandoned!");
- return NO_INIT;
- }
-
if ((w && !h) || (!w && h)) {
LOGE("dequeueBuffer: invalid size: w=%u, h=%u", w, h);
return BAD_VALUE;
@@ -246,10 +240,15 @@ status_t SurfaceTexture::dequeueBuffer(int *outBuf, uint32_t w, uint32_t h,
int dequeuedCount = 0;
bool tryAgain = true;
while (tryAgain) {
+ if (mAbandoned) {
+ LOGE("dequeueBuffer: SurfaceTexture has been abandoned!");
+ return NO_INIT;
+ }
+
// We need to wait for the FIFO to drain if the number of buffer
// needs to change.
//
- // The condition "number of buffer needs to change" is true if
+ // The condition "number of buffers needs to change" is true if
// - the client doesn't care about how many buffers there are
// - AND the actual number of buffer is different from what was
// set in the last setBufferCountServer()
@@ -261,31 +260,24 @@ status_t SurfaceTexture::dequeueBuffer(int *outBuf, uint32_t w, uint32_t h,
// As long as this condition is true AND the FIFO is not empty, we
// wait on mDequeueCondition.
- int minBufferCountNeeded = mSynchronousMode ?
+ const int minBufferCountNeeded = mSynchronousMode ?
MIN_SYNC_BUFFER_SLOTS : MIN_ASYNC_BUFFER_SLOTS;
- if (!mClientBufferCount &&
+ const bool numberOfBuffersNeedsToChange = !mClientBufferCount &&
((mServerBufferCount != mBufferCount) ||
- (mServerBufferCount < minBufferCountNeeded))) {
+ (mServerBufferCount < minBufferCountNeeded));
+
+ if (!mQueue.isEmpty() && numberOfBuffersNeedsToChange) {
// wait for the FIFO to drain
- while (!mQueue.isEmpty()) {
- mDequeueCondition.wait(mMutex);
- if (mAbandoned) {
- LOGE("dequeueBuffer: SurfaceTexture was abandoned while "
- "blocked!");
- return NO_INIT;
- }
- }
- minBufferCountNeeded = mSynchronousMode ?
- MIN_SYNC_BUFFER_SLOTS : MIN_ASYNC_BUFFER_SLOTS;
+ mDequeueCondition.wait(mMutex);
+ // NOTE: we continue here because we need to reevaluate our
+ // whole state (eg: we could be abandoned or disconnected)
+ continue;
}
-
- if (!mClientBufferCount &&
- ((mServerBufferCount != mBufferCount) ||
- (mServerBufferCount < minBufferCountNeeded))) {
+ if (numberOfBuffersNeedsToChange) {
// here we're guaranteed that mQueue is empty
- freeAllBuffers();
+ freeAllBuffersLocked();
mBufferCount = mServerBufferCount;
if (mBufferCount < minBufferCountNeeded)
mBufferCount = minBufferCountNeeded;
@@ -414,9 +406,9 @@ status_t SurfaceTexture::setSynchronousMode(bool enabled) {
if (!enabled) {
// going to asynchronous mode, drain the queue
- while (mSynchronousMode != enabled && !mQueue.isEmpty()) {
- mDequeueCondition.wait(mMutex);
- }
+ err = drainQueueLocked();
+ if (err != NO_ERROR)
+ return err;
}
if (mSynchronousMode != enabled) {
@@ -548,7 +540,8 @@ status_t SurfaceTexture::setTransform(uint32_t transform) {
return OK;
}
-status_t SurfaceTexture::connect(int api) {
+status_t SurfaceTexture::connect(int api,
+ uint32_t* outWidth, uint32_t* outHeight, uint32_t* outTransform) {
LOGV("SurfaceTexture::connect(this=%p, %d)", this, api);
Mutex::Autolock lock(mMutex);
@@ -569,6 +562,9 @@ status_t SurfaceTexture::connect(int api) {
err = -EINVAL;
} else {
mConnectedApi = api;
+ *outWidth = mDefaultWidth;
+ *outHeight = mDefaultHeight;
+ *outTransform = 0;
}
break;
default:
@@ -594,7 +590,9 @@ status_t SurfaceTexture::disconnect(int api) {
case NATIVE_WINDOW_API_MEDIA:
case NATIVE_WINDOW_API_CAMERA:
if (mConnectedApi == api) {
+ drainQueueAndFreeBuffersLocked();
mConnectedApi = NO_CONNECTED_API;
+ mDequeueCondition.signal();
} else {
LOGE("disconnect: connected to another api (cur=%d, req=%d)",
mConnectedApi, api);
@@ -630,7 +628,7 @@ status_t SurfaceTexture::updateTexImage() {
if (mAbandoned) {
LOGE("calling updateTexImage() on an abandoned SurfaceTexture");
- //return NO_INIT;
+ return NO_INIT;
}
// In asynchronous mode the list is guaranteed to be one buffer
@@ -639,21 +637,14 @@ status_t SurfaceTexture::updateTexImage() {
Fifo::iterator front(mQueue.begin());
int buf = *front;
- if (uint32_t(buf) >= NUM_BUFFER_SLOTS) {
- LOGE("buffer index out of range (index=%d)", buf);
- //return BAD_VALUE;
- }
-
// Update the GL texture object.
EGLImageKHR image = mSlots[buf].mEglImage;
if (image == EGL_NO_IMAGE_KHR) {
EGLDisplay dpy = eglGetCurrentDisplay();
-
if (mSlots[buf].mGraphicBuffer == 0) {
LOGE("buffer at slot %d is null", buf);
- //return BAD_VALUE;
+ return BAD_VALUE;
}
-
image = createImage(dpy, mSlots[buf].mGraphicBuffer);
mSlots[buf].mEglImage = image;
mSlots[buf].mEglDisplay = dpy;
@@ -843,18 +834,66 @@ void SurfaceTexture::setFrameAvailableListener(
mFrameAvailableListener = listener;
}
-void SurfaceTexture::freeAllBuffers() {
+void SurfaceTexture::freeBufferLocked(int i) {
+ mSlots[i].mGraphicBuffer = 0;
+ mSlots[i].mBufferState = BufferSlot::FREE;
+ if (mSlots[i].mEglImage != EGL_NO_IMAGE_KHR) {
+ eglDestroyImageKHR(mSlots[i].mEglDisplay, mSlots[i].mEglImage);
+ mSlots[i].mEglImage = EGL_NO_IMAGE_KHR;
+ mSlots[i].mEglDisplay = EGL_NO_DISPLAY;
+ }
+}
+
+void SurfaceTexture::freeAllBuffersLocked() {
+ LOGW_IF(!mQueue.isEmpty(),
+ "freeAllBuffersLocked called but mQueue is not empty");
+ for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
+ freeBufferLocked(i);
+ }
+}
+
+void SurfaceTexture::freeAllBuffersExceptHeadLocked() {
+ LOGW_IF(!mQueue.isEmpty(),
+ "freeAllBuffersExceptCurrentLocked called but mQueue is not empty");
+ int head = -1;
+ if (!mQueue.empty()) {
+ Fifo::iterator front(mQueue.begin());
+ head = *front;
+ }
for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
- mSlots[i].mGraphicBuffer = 0;
- mSlots[i].mBufferState = BufferSlot::FREE;
- if (mSlots[i].mEglImage != EGL_NO_IMAGE_KHR) {
- eglDestroyImageKHR(mSlots[i].mEglDisplay, mSlots[i].mEglImage);
- mSlots[i].mEglImage = EGL_NO_IMAGE_KHR;
- mSlots[i].mEglDisplay = EGL_NO_DISPLAY;
+ if (i != head) {
+ freeBufferLocked(i);
}
}
}
+status_t SurfaceTexture::drainQueueLocked() {
+ while (mSynchronousMode && !mQueue.isEmpty()) {
+ mDequeueCondition.wait(mMutex);
+ if (mAbandoned) {
+ LOGE("drainQueueLocked: SurfaceTexture has been abandoned!");
+ return NO_INIT;
+ }
+ if (mConnectedApi == NO_CONNECTED_API) {
+ LOGE("drainQueueLocked: SurfaceTexture is not connected!");
+ return NO_INIT;
+ }
+ }
+ return NO_ERROR;
+}
+
+status_t SurfaceTexture::drainQueueAndFreeBuffersLocked() {
+ status_t err = drainQueueLocked();
+ if (err == NO_ERROR) {
+ if (mSynchronousMode) {
+ freeAllBuffersLocked();
+ } else {
+ freeAllBuffersExceptHeadLocked();
+ }
+ }
+ return err;
+}
+
EGLImageKHR SurfaceTexture::createImage(EGLDisplay dpy,
const sp<GraphicBuffer>& graphicBuffer) {
EGLClientBuffer cbuf = (EGLClientBuffer)graphicBuffer->getNativeBuffer();
@@ -924,9 +963,10 @@ int SurfaceTexture::query(int what, int* outValue)
void SurfaceTexture::abandon() {
Mutex::Autolock lock(mMutex);
- freeAllBuffers();
+ mQueue.clear();
mAbandoned = true;
mCurrentTextureBuf.clear();
+ freeAllBuffersLocked();
mDequeueCondition.signal();
}
@@ -981,19 +1021,25 @@ void SurfaceTexture::dump(String8& result, const char* prefix,
for (int i=0 ; i<mBufferCount ; i++) {
const BufferSlot& slot(mSlots[i]);
- const sp<GraphicBuffer>& buf(slot.mGraphicBuffer);
snprintf(buffer, SIZE,
"%s%s[%02d] "
- "%p [%4ux%4u:%4u,%3X] "
"state=%-8s, crop=[%d,%d,%d,%d], "
- "transform=0x%02x, timestamp=%lld\n",
+ "transform=0x%02x, timestamp=%lld",
prefix, (i==mCurrentTexture)?">":" ", i,
- buf->handle, buf->width, buf->height, buf->stride, buf->format,
stateName(slot.mBufferState),
slot.mCrop.left, slot.mCrop.top, slot.mCrop.right, slot.mCrop.bottom,
slot.mTransform, slot.mTimestamp
);
result.append(buffer);
+
+ const sp<GraphicBuffer>& buf(slot.mGraphicBuffer);
+ if (buf != NULL) {
+ snprintf(buffer, SIZE,
+ ", %p [%4ux%4u:%4u,%3X]",
+ buf->handle, buf->width, buf->height, buf->stride, buf->format);
+ result.append(buffer);
+ }
+ result.append("\n");
}
}
generated by cgit v1.1 at 2025-08-15 15:52:53 +0000