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Merge "TextureView/GLES20Canvas: Support synchronous GLConsumers" into klp-dev

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Eino-Ville Talvala
2013-09-19 21:56:09 +00:00
committed by Android (Google) Code Review
parent 70817c479a a3402c33c6
commit a84ca8a3ca
1 changed files with 17 additions and 0 deletions
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17
core/jni/android_view_GLES20Canvas.cpp
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@@ -878,6 +878,23 @@ static void android_view_GLES20Canvas_updateTextureLayer(JNIEnv* env, jobject cl
sp<GLConsumer> surfaceTexture(SurfaceTexture_getSurfaceTexture(env, surface));
if (surfaceTexture->updateTexImage() == NO_ERROR) {
int64_t frameNumber = surfaceTexture->getFrameNumber();
// If the GLConsumer queue is in synchronous mode, need to discard all
// but latest frame, using the frame number to tell when we no longer
// have newer frames to target. Since we can't tell which mode it is in,
// do this unconditionally.
int dropCounter = 0;
while (surfaceTexture->updateTexImage() == NO_ERROR) {
int64_t newFrameNumber = surfaceTexture->getFrameNumber();
if (newFrameNumber == frameNumber) break;
frameNumber = newFrameNumber;
dropCounter++;
}
#if DEBUG_RENDERER
if (dropCounter > 0) {
RENDERER_LOGD("Dropped %d frames on texture layer update", dropCounter);
}
#endif
surfaceTexture->getTransformMatrix(transform);
GLenum renderTarget = surfaceTexture->getCurrentTextureTarget();