Allow GPU composition to occur at a lower resolution
Add a vendor-specified system property to allow GPU fallback composition to occur at a lower resolution than the display mode resolution.
Bug: 144574809
Test: Tested with sysprop disabled, and tested backport in Android Q with sysprop enabled. Unable to test on Android R due to device issues.
Change-Id: I02948ce72f49d20416d0e4dd45a4cffe99e28820
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 163a1c7..5a73727 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -217,6 +217,8 @@
bool SurfaceFlinger::hasSyncFramework;
bool SurfaceFlinger::useVrFlinger;
int64_t SurfaceFlinger::maxFrameBufferAcquiredBuffers;
+uint32_t SurfaceFlinger::maxGraphicsWidth;
+uint32_t SurfaceFlinger::maxGraphicsHeight;
bool SurfaceFlinger::hasWideColorDisplay;
ui::Rotation SurfaceFlinger::internalDisplayOrientation = ui::ROTATION_0;
bool SurfaceFlinger::useColorManagement;
@@ -283,6 +285,9 @@
maxFrameBufferAcquiredBuffers = max_frame_buffer_acquired_buffers(2);
+ maxGraphicsWidth = std::max(max_graphics_width(0), 0);
+ maxGraphicsHeight = std::max(max_graphics_height(0), 0);
+
hasWideColorDisplay = has_wide_color_display(false);
useColorManagement = use_color_management(false);
@@ -2593,7 +2598,8 @@
state.surface.get());
LOG_ALWAYS_FATAL_IF(!displayId);
- dispSurface = new FramebufferSurface(getHwComposer(), *displayId, bqConsumer);
+ dispSurface = new FramebufferSurface(getHwComposer(), *displayId, bqConsumer,
+ maxGraphicsWidth, maxGraphicsHeight);
producer = bqProducer;
}