Mirrors_Framework/nuttx
1
0
Fork 0
mirror of https://github.com/apache/nuttx.git synced 2026-05-23 14:58:13 +08:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

Add RGB blending logic needed to support anti-aliasing

Browse Source
This commit is contained in:
Gregory Nutt
2015-07-14 07:57:54 -06:00
parent 6fa0de358d
commit 4bcd13eabd
4 changed files with 40 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/fixedmath.h
+2
View File
@@ -121,6 +121,7 @@
/* Conversions */
#define b8toi(a) ((a) >> 8) /* Conversion to integer */
#define ub8toi(a) ((a) >> 8) /* Conversion to unsigned integer */
#define itob8(i) (((b8_t)(i)) << 8) /* Conversion from integer */
#define uitoub8(i) (((ub8_t)(i)) << 8) /* Conversion from unsigned integer */
#define b8tof(b) (((float)b)/256.0) /* Conversion to float */
@@ -152,6 +153,7 @@
/* Conversions */
#define b16toi(a) ((a) >> 16) /* Conversion to integer */
#define ub16toi(a) ((a) >> 16) /* Conversion to unsgined integer */
#define itob16(i) (((b16_t)(i)) << 16) /* Conversion from integer */
#define uitoub16(i) (((ub16_t)(i)) << 16) /* Conversion from unsigned integer */
#define b16tof(b) (((float)b)/65536.0) /* Conversion to float */