Don't cache framebuffer images for screenshots.

Screenshots always create a new GraphicBuffer, so they shouldn't be
cached since they'll never be redrawn to.

Bug: 129072814
Test: systrace
Change-Id: I116444804b80fbdacf5b8f8ef23f943032b3b777
diff --git a/libs/renderengine/gl/GLESRenderEngine.cpp b/libs/renderengine/gl/GLESRenderEngine.cpp
index 1980f50..5847402 100644
--- a/libs/renderengine/gl/GLESRenderEngine.cpp
+++ b/libs/renderengine/gl/GLESRenderEngine.cpp
@@ -808,12 +808,14 @@
     return success;
 }
 EGLImageKHR GLESRenderEngine::createFramebufferImageIfNeeded(ANativeWindowBuffer* nativeBuffer,
-                                                             bool isProtected) {
+                                                             bool isProtected,
+                                                             bool useFramebufferCache) {
     sp<GraphicBuffer> graphicBuffer = GraphicBuffer::from(nativeBuffer);
-    uint64_t bufferId = graphicBuffer->getId();
-    for (const auto& image : mFramebufferImageCache) {
-        if (image.first == bufferId) {
-            return image.second;
+    if (useFramebufferCache) {
+        for (const auto& image : mFramebufferImageCache) {
+            if (image.first == graphicBuffer->getId()) {
+                return image.second;
+            }
         }
     }
     EGLint attributes[] = {
@@ -823,13 +825,15 @@
     };
     EGLImageKHR image = eglCreateImageKHR(mEGLDisplay, EGL_NO_CONTEXT, EGL_NATIVE_BUFFER_ANDROID,
                                           nativeBuffer, attributes);
-    if (image != EGL_NO_IMAGE_KHR) {
-        if (mFramebufferImageCache.size() >= mFramebufferImageCacheSize) {
-            EGLImageKHR expired = mFramebufferImageCache.front().second;
-            mFramebufferImageCache.pop_front();
-            eglDestroyImageKHR(mEGLDisplay, expired);
+    if (useFramebufferCache) {
+        if (image != EGL_NO_IMAGE_KHR) {
+            if (mFramebufferImageCache.size() >= mFramebufferImageCacheSize) {
+                EGLImageKHR expired = mFramebufferImageCache.front().second;
+                mFramebufferImageCache.pop_front();
+                eglDestroyImageKHR(mEGLDisplay, expired);
+            }
+            mFramebufferImageCache.push_back({graphicBuffer->getId(), image});
         }
-        mFramebufferImageCache.push_back({bufferId, image});
     }
     return image;
 }
@@ -837,7 +841,8 @@
 status_t GLESRenderEngine::drawLayers(const DisplaySettings& display,
                                       const std::vector<LayerSettings>& layers,
                                       ANativeWindowBuffer* const buffer,
-                                      base::unique_fd&& bufferFence, base::unique_fd* drawFence) {
+                                      const bool useFramebufferCache, base::unique_fd&& bufferFence,
+                                      base::unique_fd* drawFence) {
     ATRACE_CALL();
     if (layers.empty()) {
         ALOGV("Drawing empty layer stack");
@@ -857,7 +862,7 @@
     {
         std::lock_guard<std::mutex> lock(mRenderingMutex);
 
-        BindNativeBufferAsFramebuffer fbo(*this, buffer);
+        BindNativeBufferAsFramebuffer fbo(*this, buffer, useFramebufferCache);
 
         if (fbo.getStatus() != NO_ERROR) {
             ALOGE("Failed to bind framebuffer! Aborting GPU composition for buffer (%p).",
diff --git a/libs/renderengine/gl/GLESRenderEngine.h b/libs/renderengine/gl/GLESRenderEngine.h
index 8c8f308..cbde5f4 100644
--- a/libs/renderengine/gl/GLESRenderEngine.h
+++ b/libs/renderengine/gl/GLESRenderEngine.h
@@ -83,14 +83,16 @@
     bool supportsProtectedContent() const override;
     bool useProtectedContext(bool useProtectedContext) override;
     status_t drawLayers(const DisplaySettings& display, const std::vector<LayerSettings>& layers,
-                        ANativeWindowBuffer* buffer, base::unique_fd&& bufferFence,
-                        base::unique_fd* drawFence) EXCLUDES(mRenderingMutex) override;
+                        ANativeWindowBuffer* buffer, const bool useFramebufferCache,
+                        base::unique_fd&& bufferFence, base::unique_fd* drawFence)
+            EXCLUDES(mRenderingMutex) override;
 
     // internal to RenderEngine
     EGLDisplay getEGLDisplay() const { return mEGLDisplay; }
     EGLConfig getEGLConfig() const { return mEGLConfig; }
     // Creates an output image for rendering to
-    EGLImageKHR createFramebufferImageIfNeeded(ANativeWindowBuffer* nativeBuffer, bool isProtected);
+    EGLImageKHR createFramebufferImageIfNeeded(ANativeWindowBuffer* nativeBuffer, bool isProtected,
+                                               bool useFramebufferCache);
 
     // Test-only methods
     // Returns true iff mImageCache contains an image keyed by bufferId
diff --git a/libs/renderengine/gl/GLFramebuffer.cpp b/libs/renderengine/gl/GLFramebuffer.cpp
index c45598c..dacf8d3 100644
--- a/libs/renderengine/gl/GLFramebuffer.cpp
+++ b/libs/renderengine/gl/GLFramebuffer.cpp
@@ -41,19 +41,25 @@
     glDeleteTextures(1, &mTextureName);
 }
 
-bool GLFramebuffer::setNativeWindowBuffer(ANativeWindowBuffer* nativeBuffer, bool isProtected) {
+bool GLFramebuffer::setNativeWindowBuffer(ANativeWindowBuffer* nativeBuffer, bool isProtected,
+                                          const bool useFramebufferCache) {
     ATRACE_CALL();
     if (mEGLImage != EGL_NO_IMAGE_KHR) {
+        if (!usingFramebufferCache) {
+            eglDestroyImageKHR(mEGLDisplay, mEGLImage);
+        }
         mEGLImage = EGL_NO_IMAGE_KHR;
         mBufferWidth = 0;
         mBufferHeight = 0;
     }
 
     if (nativeBuffer) {
-        mEGLImage = mEngine.createFramebufferImageIfNeeded(nativeBuffer, isProtected);
+        mEGLImage = mEngine.createFramebufferImageIfNeeded(nativeBuffer, isProtected,
+                                                           useFramebufferCache);
         if (mEGLImage == EGL_NO_IMAGE_KHR) {
             return false;
         }
+        usingFramebufferCache = useFramebufferCache;
         mBufferWidth = nativeBuffer->width;
         mBufferHeight = nativeBuffer->height;
     }
diff --git a/libs/renderengine/gl/GLFramebuffer.h b/libs/renderengine/gl/GLFramebuffer.h
index 1289fbf..b7650bb 100644
--- a/libs/renderengine/gl/GLFramebuffer.h
+++ b/libs/renderengine/gl/GLFramebuffer.h
@@ -35,7 +35,8 @@
     explicit GLFramebuffer(GLESRenderEngine& engine);
     ~GLFramebuffer() override;
 
-    bool setNativeWindowBuffer(ANativeWindowBuffer* nativeBuffer, bool isProtected) override;
+    bool setNativeWindowBuffer(ANativeWindowBuffer* nativeBuffer, bool isProtected,
+                               const bool useFramebufferCache) override;
     EGLImageKHR getEGLImage() const { return mEGLImage; }
     uint32_t getTextureName() const { return mTextureName; }
     uint32_t getFramebufferName() const { return mFramebufferName; }
@@ -46,6 +47,7 @@
     GLESRenderEngine& mEngine;
     EGLDisplay mEGLDisplay;
     EGLImageKHR mEGLImage;
+    bool usingFramebufferCache = false;
     uint32_t mTextureName, mFramebufferName;
 
     int32_t mBufferHeight = 0;