Apply gamma correction to font rendering.
Change-Id: I1b05f40e356221b2a5eb9400e67d77ecd98ed6c4
diff --git a/libs/hwui/Properties.h b/libs/hwui/Properties.h
index dfe022a..4e2f091 100644
--- a/libs/hwui/Properties.h
+++ b/libs/hwui/Properties.h
@@ -35,6 +35,11 @@
#define PROPERTY_TEXT_CACHE_WIDTH "ro.hwui.text_cache_width"
#define PROPERTY_TEXT_CACHE_HEIGHT "ro.hwui.text_cache_height"
+// Gamma (>= 1.0, <= 10.0)
+#define PROPERTY_TEXT_GAMMA "ro.text_gamma"
+#define PROPERTY_TEXT_BLACK_GAMMA_THRESHOLD "ro.text_gamma.black_threshold"
+#define PROPERTY_TEXT_WHITE_GAMMA_THRESHOLD "ro.text_gamma.white_threshold"
+
// Converts a number of mega-bytes into bytes
#define MB(s) s * 1024 * 1024
@@ -45,4 +50,8 @@
#define DEFAULT_GRADIENT_CACHE_SIZE 0.5f
#define DEFAULT_DROP_SHADOW_CACHE_SIZE 2.0f
+#define DEFAULT_TEXT_GAMMA 1.4f
+#define DEFAULT_TEXT_BLACK_GAMMA_THRESHOLD 64
+#define DEFAULT_TEXT_WHITE_GAMMA_THRESHOLD 192
+
#endif // ANDROID_UI_PROPERTIES_H