Revert "Revert "[RenderEngine] Rebind output texture when unbinding framebuffer""
This reverts commit e76fc0c4a0dc80d564ecd6b99ab5b6913e0cd65d.
Reason for revert: Alec found another path to rebind output texture that
doesn't trip the emulator bug https://b.corp.google.com/issues/154665573
(included in the CL after this)
Bug: b/140158384
Change-Id: I8ae60b99d6baf2da81997889df5198d2960d4a58
diff --git a/libs/renderengine/gl/GLESRenderEngine.cpp b/libs/renderengine/gl/GLESRenderEngine.cpp
index f1f140b..2006fbd 100644
--- a/libs/renderengine/gl/GLESRenderEngine.cpp
+++ b/libs/renderengine/gl/GLESRenderEngine.cpp
@@ -869,13 +869,32 @@
return glStatus == GL_FRAMEBUFFER_COMPLETE_OES ? NO_ERROR : BAD_VALUE;
}
-void GLESRenderEngine::unbindFrameBuffer(Framebuffer* /* framebuffer */) {
+void GLESRenderEngine::unbindFrameBuffer(Framebuffer* /*framebuffer*/) {
ATRACE_CALL();
// back to main framebuffer
glBindFramebuffer(GL_FRAMEBUFFER, 0);
}
+bool GLESRenderEngine::cleanupPostRender() {
+ ATRACE_CALL();
+
+ if (mPriorResourcesCleaned ||
+ (mLastDrawFence != nullptr && mLastDrawFence->getStatus() != Fence::Status::Signaled)) {
+ // If we don't have a prior frame needing cleanup, then don't do anything.
+ return false;
+ }
+
+ // Bind the texture to dummy data so that backing image data can be freed.
+ GLFramebuffer* glFramebuffer = static_cast<GLFramebuffer*>(getFramebufferForDrawing());
+ glFramebuffer->allocateBuffers(1, 1, mPlaceholderDrawBuffer);
+ // Release the cached fence here, so that we don't churn reallocations when
+ // we could no-op repeated calls of this method instead.
+ mLastDrawFence = nullptr;
+ mPriorResourcesCleaned = true;
+ return true;
+}
+
void GLESRenderEngine::checkErrors() const {
checkErrors(nullptr);
}
@@ -1165,7 +1184,13 @@
// us bad parameters, or we messed up our shader generation).
return INVALID_OPERATION;
}
+ mLastDrawFence = nullptr;
+ } else {
+ // The caller takes ownership of drawFence, so we need to duplicate the
+ // fd here.
+ mLastDrawFence = new Fence(dup(drawFence->get()));
}
+ mPriorResourcesCleaned = false;
checkErrors();
return NO_ERROR;
diff --git a/libs/renderengine/gl/GLESRenderEngine.h b/libs/renderengine/gl/GLESRenderEngine.h
index d3c94a6..9ab5ee6 100644
--- a/libs/renderengine/gl/GLESRenderEngine.h
+++ b/libs/renderengine/gl/GLESRenderEngine.h
@@ -17,7 +17,6 @@
#ifndef SF_GLESRENDERENGINE_H_
#define SF_GLESRENDERENGINE_H_
-#include <stdint.h>
#include <condition_variable>
#include <deque>
#include <mutex>
@@ -76,6 +75,7 @@
const std::vector<const LayerSettings*>& layers,
const sp<GraphicBuffer>& buffer, const bool useFramebufferCache,
base::unique_fd&& bufferFence, base::unique_fd* drawFence) override;
+ bool cleanupPostRender() override;
EGLDisplay getEGLDisplay() const { return mEGLDisplay; }
// Creates an output image for rendering to
@@ -231,6 +231,17 @@
std::mutex mRenderingMutex;
std::unique_ptr<Framebuffer> mDrawingBuffer;
+ // this is a 1x1 RGB buffer, but over-allocate in case a driver wants more
+ // memory or if it needs to satisfy alignment requirements. In this case:
+ // assume that each channel requires 4 bytes, and add 3 additional bytes to
+ // ensure that we align on a word. Allocating 16 bytes will provide a
+ // guarantee that we don't clobber memory.
+ uint32_t mPlaceholderDrawBuffer[4];
+ sp<Fence> mLastDrawFence;
+ // Store a separate boolean checking if prior resources were cleaned up, as
+ // devices that don't support native sync fences can't rely on a last draw
+ // fence that doesn't exist.
+ bool mPriorResourcesCleaned = true;
// Blur effect processor, only instantiated when a layer requests it.
BlurFilter* mBlurFilter = nullptr;
diff --git a/libs/renderengine/gl/GLFramebuffer.cpp b/libs/renderengine/gl/GLFramebuffer.cpp
index cb0d5cf..383486b 100644
--- a/libs/renderengine/gl/GLFramebuffer.cpp
+++ b/libs/renderengine/gl/GLFramebuffer.cpp
@@ -68,11 +68,11 @@
return true;
}
-void GLFramebuffer::allocateBuffers(uint32_t width, uint32_t height) {
+void GLFramebuffer::allocateBuffers(uint32_t width, uint32_t height, void* data) {
ATRACE_CALL();
glBindTexture(GL_TEXTURE_2D, mTextureName);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, nullptr);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);
diff --git a/libs/renderengine/gl/GLFramebuffer.h b/libs/renderengine/gl/GLFramebuffer.h
index b88da3b..6757695 100644
--- a/libs/renderengine/gl/GLFramebuffer.h
+++ b/libs/renderengine/gl/GLFramebuffer.h
@@ -39,7 +39,7 @@
bool setNativeWindowBuffer(ANativeWindowBuffer* nativeBuffer, bool isProtected,
const bool useFramebufferCache) override;
- void allocateBuffers(uint32_t width, uint32_t height);
+ void allocateBuffers(uint32_t width, uint32_t height, void* data = nullptr);
EGLImageKHR getEGLImage() const { return mEGLImage; }
uint32_t getTextureName() const { return mTextureName; }
uint32_t getFramebufferName() const { return mFramebufferName; }