diff options
Diffstat (limited to 'nuttx/graphics/nxglib/nxglib_rgb2yuv.c')
| -rw-r--r-- | nuttx/graphics/nxglib/nxglib_rgb2yuv.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/nuttx/graphics/nxglib/nxglib_rgb2yuv.c b/nuttx/graphics/nxglib/nxglib_rgb2yuv.c index 49a29ca67..055598406 100644 --- a/nuttx/graphics/nxglib/nxglib_rgb2yuv.c +++ b/nuttx/graphics/nxglib/nxglib_rgb2yuv.c @@ -39,7 +39,7 @@ #include <nuttx/config.h> -#include <sys/types.h> +#include <stdint.h> #include <debug.h> #include <fixedmath.h> @@ -87,7 +87,8 @@ * ****************************************************************************/ -void nxgl_rgb2yuv(ubyte r, ubyte g, ubyte b, ubyte *y, ubyte *u, ubyte *v) +void nxgl_rgb2yuv(uint8_t r, uint8_t g, uint8_t b, + uint8_t *y, uint8_t *u, uint8_t *v) { /* Per the JFIF specification: * @@ -96,7 +97,7 @@ void nxgl_rgb2yuv(ubyte r, ubyte g, ubyte b, ubyte *y, ubyte *u, ubyte *v) * V = 128 + (0.5000 * R) - (0.4187 * G) - (0.0813 * B); */ - *y = (ubyte)b16toi(b16muli(b16_P2990, r) + b16muli(b16_P5870, g) + b16muli(b16_P1140, b)); - *u = (ubyte)b16toi(b16_128P0 - b16muli(b16_P1687, r) - b16muli(b16_P3313, g) + b16muli(b16_P5000, b)); - *v = (ubyte)b16toi(b16_128P0 + b16muli(b16_P5000, r) - b16muli(b16_P4187, g) - b16muli(b16_P0813, b)); + *y = (uint8_t)b16toi(b16muli(b16_P2990, r) + b16muli(b16_P5870, g) + b16muli(b16_P1140, b)); + *u = (uint8_t)b16toi(b16_128P0 - b16muli(b16_P1687, r) - b16muli(b16_P3313, g) + b16muli(b16_P5000, b)); + *v = (uint8_t)b16toi(b16_128P0 + b16muli(b16_P5000, r) - b16muli(b16_P4187, g) - b16muli(b16_P0813, b)); } |