Make stopped state a first-class thing
Bug: 27286867
WindowManager has committed to stopped state
controlling the lifecycle of the Surface, so
make that a first-class thing in HWUI as well.
This makes it more resistent to things like
a rogue updateSurface() happening while mStopped=true,
leading to bad things down the line. Instead let
the surface be changed/updated as often as desired,
and just block any attempt to draw on that surface.
Also removes some unnecessary makeCurrent()s, as
EglManager ensures that we *always* have a valid
GL context now (using a pbuffer surface if there is
no window surface set)
Change-Id: Iead78ddebc7997e8fdb0c9534836352f5e54b9bd
diff --git a/libs/hwui/renderthread/CanvasContext.cpp b/libs/hwui/renderthread/CanvasContext.cpp
index 63fa788..8eea2f1 100644
--- a/libs/hwui/renderthread/CanvasContext.cpp
+++ b/libs/hwui/renderthread/CanvasContext.cpp
@@ -113,18 +113,11 @@
mBufferPreserved = mEglManager.setPreserveBuffer(mEglSurface, preserveBuffer);
mHaveNewSurface = true;
mSwapHistory.clear();
- makeCurrent();
} else {
mRenderThread.removeFrameCallback(this);
}
}
-void CanvasContext::requireSurface() {
- LOG_ALWAYS_FATAL_IF(mEglSurface == EGL_NO_SURFACE,
- "requireSurface() called but no surface set!");
- makeCurrent();
-}
-
void CanvasContext::setSwapBehavior(SwapBehavior swapBehavior) {
mSwapBehavior = swapBehavior;
}
@@ -146,6 +139,18 @@
return mRenderThread.removeFrameCallback(this);
}
+void CanvasContext::setStopped(bool stopped) {
+ if (mStopped != stopped) {
+ mStopped = stopped;
+ if (mStopped) {
+ mRenderThread.removeFrameCallback(this);
+ if (mEglManager.isCurrent(mEglSurface)) {
+ mEglManager.makeCurrent(EGL_NO_SURFACE);
+ }
+ }
+ }
+}
+
// TODO: don't pass viewport size, it's automatic via EGL
void CanvasContext::setup(int width, int height, float lightRadius,
uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha) {
@@ -172,7 +177,9 @@
mOpaque = opaque;
}
-void CanvasContext::makeCurrent() {
+bool CanvasContext::makeCurrent() {
+ if (mStopped) return false;
+
// TODO: Figure out why this workaround is needed, see b/13913604
// In the meantime this matches the behavior of GLRenderer, so it is not a regression
EGLint error = 0;
@@ -180,6 +187,7 @@
if (error) {
setSurface(nullptr);
}
+ return !error;
}
static bool wasSkipped(FrameInfo* info) {
@@ -671,7 +679,7 @@
}
Layer* CanvasContext::createTextureLayer() {
- requireSurface();
+ mEglManager.initialize();
return LayerRenderer::createTextureLayer(mRenderThread.renderState());
}
diff --git a/libs/hwui/renderthread/CanvasContext.h b/libs/hwui/renderthread/CanvasContext.h
index 6d0889e..525d5ef 100644
--- a/libs/hwui/renderthread/CanvasContext.h
+++ b/libs/hwui/renderthread/CanvasContext.h
@@ -82,13 +82,14 @@
void initialize(Surface* surface);
void updateSurface(Surface* surface);
bool pauseSurface(Surface* surface);
+ void setStopped(bool stopped);
bool hasSurface() { return mNativeSurface.get(); }
void setup(int width, int height, float lightRadius,
uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha);
void setLightCenter(const Vector3& lightCenter);
void setOpaque(bool opaque);
- void makeCurrent();
+ bool makeCurrent();
void prepareTree(TreeInfo& info, int64_t* uiFrameInfo,
int64_t syncQueued, RenderNode* target);
void draw();
@@ -172,7 +173,6 @@
friend class android::uirenderer::RenderState;
void setSurface(Surface* window);
- void requireSurface();
void freePrefetechedLayers();
@@ -185,6 +185,7 @@
EglManager& mEglManager;
sp<Surface> mNativeSurface;
EGLSurface mEglSurface = EGL_NO_SURFACE;
+ bool mStopped = false;
bool mBufferPreserved = false;
SwapBehavior mSwapBehavior = kSwap_default;
struct SwapHistory {
diff --git a/libs/hwui/renderthread/DrawFrameTask.cpp b/libs/hwui/renderthread/DrawFrameTask.cpp
index e8b9725..bd0c1dc0 100644
--- a/libs/hwui/renderthread/DrawFrameTask.cpp
+++ b/libs/hwui/renderthread/DrawFrameTask.cpp
@@ -113,7 +113,7 @@
ATRACE_CALL();
int64_t vsync = mFrameInfo[static_cast<int>(FrameInfoIndex::Vsync)];
mRenderThread->timeLord().vsyncReceived(vsync);
- mContext->makeCurrent();
+ bool canDraw = mContext->makeCurrent();
Caches::getInstance().textureCache.resetMarkInUse(mContext);
for (size_t i = 0; i < mLayers.size(); i++) {
@@ -124,8 +124,9 @@
// This is after the prepareTree so that any pending operations
// (RenderNode tree state, prefetched layers, etc...) will be flushed.
- if (CC_UNLIKELY(!mContext->hasSurface())) {
+ if (CC_UNLIKELY(!mContext->hasSurface() || !canDraw)) {
mSyncResult |= kSync_LostSurfaceRewardIfFound;
+ info.out.canDrawThisFrame = false;
}
if (info.out.hasAnimations) {
diff --git a/libs/hwui/renderthread/EglManager.cpp b/libs/hwui/renderthread/EglManager.cpp
index 8def7ad..ac6a28f 100644
--- a/libs/hwui/renderthread/EglManager.cpp
+++ b/libs/hwui/renderthread/EglManager.cpp
@@ -270,12 +270,6 @@
// Ensure we always have a valid surface & context
surface = mPBufferSurface;
}
- // TODO: Temporary to help diagnose b/27286867
- if (mCurrentSurface == mPBufferSurface || surface == mPBufferSurface) {
- ALOGD("Switching from surface %p%s to %p%s", mCurrentSurface,
- mCurrentSurface == mPBufferSurface ? " (pbuffer)" : "",
- surface, surface == mPBufferSurface ? " (pbuffer)" : "");
- }
if (!eglMakeCurrent(mEglDisplay, surface, surface, mEglContext)) {
if (errOut) {
*errOut = eglGetError();
diff --git a/libs/hwui/renderthread/RenderProxy.cpp b/libs/hwui/renderthread/RenderProxy.cpp
index 16dd108..149ddf6 100644
--- a/libs/hwui/renderthread/RenderProxy.cpp
+++ b/libs/hwui/renderthread/RenderProxy.cpp
@@ -175,6 +175,18 @@
return (bool) postAndWait(task);
}
+CREATE_BRIDGE2(setStopped, CanvasContext* context, bool stopped) {
+ args->context->setStopped(args->stopped);
+ return nullptr;
+}
+
+void RenderProxy::setStopped(bool stopped) {
+ SETUP_TASK(setStopped);
+ args->context = mContext;
+ args->stopped = stopped;
+ postAndWait(task);
+}
+
CREATE_BRIDGE6(setup, CanvasContext* context, int width, int height,
float lightRadius, uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha) {
args->context->setup(args->width, args->height, args->lightRadius,
diff --git a/libs/hwui/renderthread/RenderProxy.h b/libs/hwui/renderthread/RenderProxy.h
index 8d65a82..3f35838 100644
--- a/libs/hwui/renderthread/RenderProxy.h
+++ b/libs/hwui/renderthread/RenderProxy.h
@@ -70,6 +70,7 @@
ANDROID_API void initialize(const sp<Surface>& surface);
ANDROID_API void updateSurface(const sp<Surface>& surface);
ANDROID_API bool pauseSurface(const sp<Surface>& surface);
+ ANDROID_API void setStopped(bool stopped);
ANDROID_API void setup(int width, int height, float lightRadius,
uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha);
ANDROID_API void setLightCenter(const Vector3& lightCenter);