Memory optimizations for libhwui
Bug #5566149
Lazily initialize font renderers
Keep 60% of the texture cache when an app goes to the background
Delete least used font renderer when going to the background
Delete all font renderers on full memory trim
Change-Id: I3c2454d46dc1107ec0f0f72a9ce69cbbcc8825e7
diff --git a/libs/hwui/Properties.h b/libs/hwui/Properties.h
index 5bd0d4f..8c01e3a 100644
--- a/libs/hwui/Properties.h
+++ b/libs/hwui/Properties.h
@@ -61,6 +61,9 @@
#define PROPERTY_DROP_SHADOW_CACHE_SIZE "ro.hwui.drop_shadow_cache_size"
#define PROPERTY_FBO_CACHE_SIZE "ro.hwui.fbo_cache_size"
+// These properties are defined in percentage (range 0..1)
+#define PROPERTY_TEXTURE_CACHE_FLUSH_RATE "ro.hwui.texture_cache_flush_rate"
+
// These properties are defined in pixels
#define PROPERTY_TEXT_CACHE_WIDTH "ro.hwui.text_cache_width"
#define PROPERTY_TEXT_CACHE_HEIGHT "ro.hwui.text_cache_height"
@@ -82,6 +85,8 @@
#define DEFAULT_DROP_SHADOW_CACHE_SIZE 2.0f
#define DEFAULT_FBO_CACHE_SIZE 16
+#define DEFAULT_TEXTURE_CACHE_FLUSH_RATE 0.6f
+
#define DEFAULT_TEXT_GAMMA 1.4f
#define DEFAULT_TEXT_BLACK_GAMMA_THRESHOLD 64
#define DEFAULT_TEXT_WHITE_GAMMA_THRESHOLD 192