Support render-ahead in vulkan
Bug: 127822449
Test: verified render_ahead working with skiavk
Change-Id: Iae1b227a763f6def035057f38cca4b0ab65c7e82
diff --git a/libs/hwui/pipeline/skia/SkiaOpenGLPipeline.cpp b/libs/hwui/pipeline/skia/SkiaOpenGLPipeline.cpp
index 570e895..9248ead 100644
--- a/libs/hwui/pipeline/skia/SkiaOpenGLPipeline.cpp
+++ b/libs/hwui/pipeline/skia/SkiaOpenGLPipeline.cpp
@@ -101,7 +101,7 @@
SkiaPipeline::updateLighting(lightGeometry, lightInfo);
renderFrame(*layerUpdateQueue, dirty, renderNodes, opaque, contentDrawBounds, surface,
- SkMatrix::I());
+ SkMatrix::I());
layerUpdateQueue->clear();
// Draw visual debugging features
@@ -156,8 +156,23 @@
}
}
+static void setBufferCount(ANativeWindow* window, uint32_t extraBuffers) {
+ int query_value;
+ int err = window->query(window, NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &query_value);
+ if (err != 0 || query_value < 0) {
+ ALOGE("window->query failed: %s (%d) value=%d", strerror(-err), err, query_value);
+ return;
+ }
+ auto min_undequeued_buffers = static_cast<uint32_t>(query_value);
+
+ int bufferCount = min_undequeued_buffers + 2 + extraBuffers;
+ ALOGD("Setting buffer count to %d, min_undequeued %u, extraBuffers %u",
+ bufferCount, min_undequeued_buffers, extraBuffers);
+ native_window_set_buffer_count(window, bufferCount);
+}
+
bool SkiaOpenGLPipeline::setSurface(ANativeWindow* surface, SwapBehavior swapBehavior,
- ColorMode colorMode) {
+ ColorMode colorMode, uint32_t extraBuffers) {
if (mEglSurface != EGL_NO_SURFACE) {
mEglManager.destroySurface(mEglSurface);
mEglSurface = EGL_NO_SURFACE;
@@ -177,6 +192,7 @@
if (mEglSurface != EGL_NO_SURFACE) {
const bool preserveBuffer = (swapBehavior != SwapBehavior::kSwap_discardBuffer);
mBufferPreserved = mEglManager.setPreserveBuffer(mEglSurface, preserveBuffer);
+ setBufferCount(surface, extraBuffers);
return true;
}