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| author | Romain Guy <romainguy@google.com> | 2012-07-18 15:50:29 -0700 |
|---|---|---|
| committer | Romain Guy <romainguy@google.com> | 2012-07-18 16:28:44 -0700 |
| commit | 6e25e38e43f9e7f71397dfab7ed32c81c7bf7d46 (patch) | |
| tree | 0bca4ce1b09dee6f3bfeb941ca324b4ca91a1eff /libs/hwui/Properties.h | |
| parent | accf721ebdf4d3da53e8ae09572650775bfe10f8 (diff) | |
| download | frameworks_base-6e25e38e43f9e7f71397dfab7ed32c81c7bf7d46.zip frameworks_base-6e25e38e43f9e7f71397dfab7ed32c81c7bf7d46.tar.gz frameworks_base-6e25e38e43f9e7f71397dfab7ed32c81c7bf7d46.tar.bz2 | |
Add a new method for text gamma correction
To select the gamma correction method, adb shell setprop hwui.text_gamma_correction
with one of the following values:
lookup3
lookup
shader3
shader
See Properties.h for more information about these different methods.
You can also control gamma correction using the following properties:
hwui.text_gamma
hwui.text_gamma.black_threshold
hwui.text_gamma.white_threshold
Change-Id: I47970b804d2c590c37d3da5008db094241579e25
Diffstat (limited to 'libs/hwui/Properties.h')
| -rw-r--r-- | libs/hwui/Properties.h | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/libs/hwui/Properties.h b/libs/hwui/Properties.h index 4a12e39..447b1d0 100644 --- a/libs/hwui/Properties.h +++ b/libs/hwui/Properties.h @@ -74,13 +74,28 @@ enum DebugLevel { #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" +// or in lookup tables. Accepted values: +// +// - "lookup3", correction based on lookup tables. Gamma correction +// is different for black and white text (see thresholds below) +// +// - "lookup", correction based on a single lookup table +// +// - "shader3", correction applied by a GLSL shader. Gamma correction +// is different for black and white text (see thresholds below) +// +// - "shader", correction applied by a GLSL shader +// +// See PROPERTY_TEXT_GAMMA, PROPERTY_TEXT_BLACK_GAMMA_THRESHOLD and +// PROPERTY_TEXT_WHITE_GAMMA_THRESHOLD for more control. +#define PROPERTY_TEXT_GAMMA_SHADER "hwui.text_gamma_correction" // 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" +#define PROPERTY_TEXT_GAMMA "hwui.text_gamma" +// Luminance threshold below which black gamma correction is applied. Range: [0..255] +#define PROPERTY_TEXT_BLACK_GAMMA_THRESHOLD "hwui.text_gamma.black_threshold" +// Lumincance threshold above which white gamma correction is applied. Range: [0..255] +#define PROPERTY_TEXT_WHITE_GAMMA_THRESHOLD "hwui.text_gamma.white_threshold" // Converts a number of mega-bytes into bytes #define MB(s) s * 1024 * 1024 |