Optimize FBOs composition

Change-Id: Ifc8eada8922509373c0e4c3b2ed75b6f08d098de

1 files changed, 3 insertions, 5 deletions

diff --git a/libs/hwui/OpenGLRenderer.cpp b/libs/hwui/OpenGLRenderer.cpp
index e4d1ba9..9000391 100644
--- a/libs/hwui/OpenGLRenderer.cpp
+++ b/libs/hwui/OpenGLRenderer.cpp
@@ -594,6 +594,9 @@ void OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) {
     const bool fboLayer = current->flags & Snapshot::kFlagIsFboLayer;
 
     if (fboLayer) {
+        // Detach the texture from the FBO
+        glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0);
+
         // Unbind current FBO and restore previous one
         glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo);
     }
@@ -634,11 +637,6 @@ void OpenGLRenderer::composeLayer(sp<Snapshot> current, sp<Snapshot> previous) {
         //       code path
         // See LayerRenderer::destroyLayer(Layer*)
 
-        // Detach the texture from the FBO
-        glBindFramebuffer(GL_FRAMEBUFFER, current->fbo);
-        glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0);
-        glBindFramebuffer(GL_FRAMEBUFFER, previous->fbo);
-
         // Put the FBO name back in the cache, if it doesn't fit, it will be destroyed
         mCaches.fboCache.put(current->fbo);
         layer->setFbo(0);