diff options
Diffstat (limited to 'core/java/android')
| -rw-r--r-- | core/java/android/hardware/Camera.java | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/core/java/android/hardware/Camera.java b/core/java/android/hardware/Camera.java index 6c6a72d..7670694 100644 --- a/core/java/android/hardware/Camera.java +++ b/core/java/android/hardware/Camera.java @@ -2600,10 +2600,12 @@ public class Camera { * (1000, 1000) is the lower right point. The length and width of focus * areas cannot be 0 or negative. * - * The weight ranges from 1 to 1000. The sum of the weights of all focus - * areas must be 1000. Focus areas can partially overlap and the driver - * will add the weights in the overlap region. But apps should not set - * two focus areas that have identical coordinates. + * The weight must range from 1 to 1000. The weight should be + * interpreted as a per-pixel weight - all pixels in the area have the + * specified weight. This means a small area with the same weight as a + * larger area will have less influence on the focusing than the larger + * area. Focus areas can partially overlap and the driver will add the + * weights in the overlap region. * * A special case of all-zero single focus area means driver to decide * the focus area. For example, the driver may use more signals to @@ -2668,10 +2670,11 @@ public class Camera { * point. (1000, 1000) is the lower right point. The length and width of * metering areas cannot be 0 or negative. * - * The weight ranges from 1 to 1000. The sum of the weights of all - * metering areas must be 1000. Metering areas can partially overlap and - * the driver will add the weights in the overlap region. But apps - * should not set two metering areas that have identical coordinates. + * The weight must range from 1 to 1000, and represents a weight for + * every pixel in the area. This means that a large metering area with + * the same weight as a smaller area will have more effect in the + * metering result. Metering areas can partially overlap and the driver + * will add the weights in the overlap region. * * A special case of all-zero single metering area means driver to * decide the metering area. For example, the driver may use more |