diff options
| -rw-r--r-- | include/system/graphics.h | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/include/system/graphics.h b/include/system/graphics.h index 74d790f..c3fca97 100644 --- a/include/system/graphics.h +++ b/include/system/graphics.h @@ -202,15 +202,16 @@ enum { * * This format is exposed outside of the camera HAL to applications. * - * RAW10 is a single-channel, 10-bit per pixel, densely packed, unprocessed - * format, representing raw Bayer-pattern images coming from an image sensor. + * RAW10 is a single-channel, 10-bit per pixel, densely packed in each row, + * unprocessed format, usually representing raw Bayer-pattern images coming from + * an image sensor. * - * In an image buffer with this format, starting from the first pixel, each 4 - * consecutive pixels are packed into 5 bytes (40 bits). Each one of the first - * 4 bytes contains the top 8 bits of each pixel, The fifth byte contains the - * 2 least significant bits of the 4 pixels, the exact layout data for each 4 - * consecutive pixels is illustrated below (Pi[j] stands for the jth bit of - * the ith pixel): + * In an image buffer with this format, starting from the first pixel of each + * row, each 4 consecutive pixels are packed into 5 bytes (40 bits). Each one + * of the first 4 bytes contains the top 8 bits of each pixel, The fifth byte + * contains the 2 least significant bits of the 4 pixels, the exact layout data + * for each 4 consecutive pixels is illustrated below (Pi[j] stands for the jth + * bit of the ith pixel): * * bit 7 bit 0 * =====|=====|=====|=====|=====|=====|=====|=====| @@ -228,11 +229,15 @@ enum { * This format assumes * - a width multiple of 4 pixels * - an even height - * - a horizontal stride equal to the width * - a vertical stride equal to the height - * - strides are specified in pixels, not in bytes + * - strides are specified in bytes, not in pixels + * + * size = stride * height * - * size = stride * height * 10 / 8 + * When stride is equal to width * (10 / 8), there will be no padding bytes at + * the end of each row, the entire image data is densely packed. When stride is + * larger than width * (10 / 8), padding bytes will be present at the end of each + * row (including the last row). * * This format must be accepted by the gralloc module when used with the * following usage flags: |