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Fix some RGB color macros 

git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4081 7fd9a85b-ad96-42d3-883c-3090e2eb8679
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patacongo 2011-11-03 22:27:53 +00:00
parent 44b2dffe12
commit ef30e0aef2
2 changed files with 10 additions and 2 deletions
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3
nuttx/ChangeLog
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@ -2192,3 +2192,6 @@
supports using "clusters" of AT24 pages as blocks. This allows bigger supports using "clusters" of AT24 pages as blocks. This allows bigger
block sizes and more efficient use of EEPROM when the AT24 is used to block sizes and more efficient use of EEPROM when the AT24 is used to
support a file system (such as NXFFS). (Contributed by Hal Glenn). support a file system (such as NXFFS). (Contributed by Hal Glenn).
* include/nuttx/rgbcolors.h: More fixes to RGB color conversion
macros.

9
nuttx/include/nuttx/rgbcolors.h
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@ -56,10 +56,15 @@
#define RBG24GREEN(rgb) (((rgb) >> 8) & 0xff) #define RBG24GREEN(rgb) (((rgb) >> 8) & 0xff)
#define RBG24BLUE(rgb) ( (rgb) & 0xff) #define RBG24BLUE(rgb) ( (rgb) & 0xff)
/* This macro creates RGB16 (5:6:5) from 8:8:8 RGB */ /* This macro creates RGB16 (5:6:5) from 8:8:8 RGB:
*
* R[7:3] -> RGB[15:11]
* G[7:2] -> RGB[10:5]
* B[7:3] -> RGB[4:0]
*/
#define RGBTO16(r,g,b) \ #define RGBTO16(r,g,b) \
((((uint16_t)(r) << 11) & 0xf800) | (((uint16_t)(g) << 5) & 0x07e0) | ((uint16_t)(b) & 0x001f)) ((((uint16_t)(r) << 8) & 0xf800) | (((uint16_t)(g) << 3) & 0x07e0) | (((uint16_t)(b) >> 3) & 0x001f))
/* And these macros perform the inverse transformation */ /* And these macros perform the inverse transformation */