void Layer::setPerFrameData(hwc_layer_t* hwcl) {
const sp<GraphicBuffer>& buffer(mActiveBuffer);
if (buffer == NULL) {
// this can happen if the client never drew into this layer yet,
// or if we ran out of memory. In that case, don't let
// HWC handle it.
hwcl->flags |= HWC_SKIP_LAYER;
hwcl->handle = NULL;
} else {
hwcl->handle = buffer->handle;
}
updateLayerQcomFlags(LAYER_ASYNCHRONOUS_STATUS, !mSurfaceTexture->isSynchronousMode(), mLayerQcomFlags);
hwcl->flags = getPerFrameFlags(hwcl->flags, mLayerQcomFlags);
}
Layer::Layer(SurfaceFlinger* flinger,
DisplayID display, const sp<Client>& client)
: LayerBaseClient(flinger, display, client),
mTextureName(-1U),
mQueuedFrames(0),
mCurrentTransform(0),
mCurrentScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE),
mCurrentOpacity(true),
mFormat(PIXEL_FORMAT_NONE),
mGLExtensions(GLExtensions::getInstance()),
mOpaqueLayer(true),
mNeedsDithering(false),
mSecure(false),
mProtectedByApp(false),
mLayerQcomFlags(0)
{
mCurrentCrop.makeInvalid();
glGenTextures(1, &mTextureName);
updateLayerQcomFlags(LAYER_UPDATE_STATUS, true, mLayerQcomFlags);
}
void Layer::lockPageFlip(bool& recomputeVisibleRegions)
{
if (mQueuedFrames > 0) {
// Capture the old state of the layer for comparisons later
const bool oldOpacity = isOpaque();
sp<GraphicBuffer> oldActiveBuffer = mActiveBuffer;
// signal another event if we have more frames pending
if (android_atomic_dec(&mQueuedFrames) > 1) {
mFlinger->signalEvent();
}
if (mSurfaceTexture->updateTexImage() < NO_ERROR) {
// something happened!
recomputeVisibleRegions = true;
return;
}
#ifdef QCOM_HARDWARE
updateLayerQcomFlags(LAYER_UPDATE_STATUS, true, mLayerQcomFlags);
#endif
// update the active buffer
mActiveBuffer = mSurfaceTexture->getCurrentBuffer();
const Rect crop(mSurfaceTexture->getCurrentCrop());
const uint32_t transform(mSurfaceTexture->getCurrentTransform());
const uint32_t scalingMode(mSurfaceTexture->getCurrentScalingMode());
if ((crop != mCurrentCrop) ||
(transform != mCurrentTransform) ||
(scalingMode != mCurrentScalingMode))
{
mCurrentCrop = crop;
mCurrentTransform = transform;
mCurrentScalingMode = scalingMode;
mFlinger->invalidateHwcGeometry();
}
GLfloat textureMatrix[16];
mSurfaceTexture->getTransformMatrix(textureMatrix);
if (memcmp(textureMatrix, mTextureMatrix, sizeof(textureMatrix))) {
memcpy(mTextureMatrix, textureMatrix, sizeof(textureMatrix));
mFlinger->invalidateHwcGeometry();
}
uint32_t bufWidth = mActiveBuffer->getWidth();
uint32_t bufHeight = mActiveBuffer->getHeight();
if (oldActiveBuffer != NULL) {
if (bufWidth != uint32_t(oldActiveBuffer->width) ||
bufHeight != uint32_t(oldActiveBuffer->height)) {
mFlinger->invalidateHwcGeometry();
}
}
mCurrentOpacity = getOpacityForFormat(mActiveBuffer->format);
if (oldOpacity != isOpaque()) {
recomputeVisibleRegions = true;
}
glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
// update the layer size if needed
const Layer::State& front(drawingState());
// FIXME: mPostedDirtyRegion = dirty & bounds
mPostedDirtyRegion.set(front.w, front.h);
if ((front.w != front.requested_w) ||
(front.h != front.requested_h))
{
// check that we received a buffer of the right size
// (Take the buffer's orientation into account)
if (mCurrentTransform & Transform::ROT_90) {
swap(bufWidth, bufHeight);
}
if (isFixedSize() ||
(bufWidth == front.requested_w &&
bufHeight == front.requested_h))
{
// Here we pretend the transaction happened by updating the
// current and drawing states. Drawing state is only accessed
// in this thread, no need to have it locked
Layer::State& editDraw(mDrawingState);
editDraw.w = editDraw.requested_w;
editDraw.h = editDraw.requested_h;
// We also need to update the current state so that we don't
// end-up doing too much work during the next transaction.
// NOTE: We actually don't need hold the transaction lock here
// because State::w and State::h are only accessed from
// this thread
Layer::State& editTemp(currentState());
editTemp.w = editDraw.w;
editTemp.h = editDraw.h;
// recompute visible region
recomputeVisibleRegions = true;
}
LOGD_IF(DEBUG_RESIZE,
"lockPageFlip : "
" (layer=%p), buffer (%ux%u, tr=%02x), "
"requested (%dx%d)",
this,
bufWidth, bufHeight, mCurrentTransform,
front.requested_w, front.requested_h);
}
#ifdef QCOM_HARDWARE
} else {
updateLayerQcomFlags(LAYER_UPDATE_STATUS, false, mLayerQcomFlags);
#endif
}
}
void Layer::setIsUpdating(bool isUpdating)
{
updateLayerQcomFlags(LAYER_UPDATE_STATUS, isUpdating, mLayerQcomFlags);
}
