Refactor GammaFontRenderer
This change is the first step to a shader-based text antialias
gamma correction.
Change-Id: I9eb02d4c56cb95d05219f712290c865b46141954
diff --git a/libs/hwui/Properties.h b/libs/hwui/Properties.h
index c0311fb..4a12e39 100644
--- a/libs/hwui/Properties.h
+++ b/libs/hwui/Properties.h
@@ -73,6 +73,10 @@
#define PROPERTY_TEXT_CACHE_WIDTH "ro.hwui.text_cache_width"
#define PROPERTY_TEXT_CACHE_HEIGHT "ro.hwui.text_cache_height"
+// Indicates whether gamma correction should be applied in the shaders
+// or in lookup tables. Accepted values: true, false
+#define PROPERTY_TEXT_GAMMA_SHADER "ro.hwui.text_gamma_shader"
+
// Gamma (>= 1.0, <= 10.0)
#define PROPERTY_TEXT_GAMMA "ro.text_gamma"
#define PROPERTY_TEXT_BLACK_GAMMA_THRESHOLD "ro.text_gamma.black_threshold"
@@ -92,6 +96,8 @@
#define DEFAULT_TEXTURE_CACHE_FLUSH_RATE 0.6f
+#define DEFAULT_TEXT_GAMMA_SHADER "false"
+
#define DEFAULT_TEXT_GAMMA 1.4f
#define DEFAULT_TEXT_BLACK_GAMMA_THRESHOLD 64
#define DEFAULT_TEXT_WHITE_GAMMA_THRESHOLD 192