The-Homebrew-Cloud/dosbox-wii
2
0
Fork 0
mirror of https://github.com/retro100/dosbox-wii.git synced 2024-11-05 01:45:11 +01:00
Code Issues Packages Projects Releases Wiki Activity

optimization

Browse Source
This commit is contained in:
dborth 2010-02-12 07:40:37 +00:00
parent 06e2fc91c2
commit d7f0bbb505
1 changed files with 8 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/platform/wii/Metaphrasis.cpp
View File

@ -274,9 +274,14 @@ uint32_t* Metaphrasis::convertBufferToRGBA8(uint32_t* rgbaBuffer, uint16_t buffe
*/
uint16_t Metaphrasis::convertRGBAToRGB565(uint32_t rgba) {
uint8_t r = (((rgba >> 24) & 0xff) * 31) / 255;
uint8_t g = (((rgba >> 16) & 0xff) * 63) / 255;
uint8_t b = (((rgba >> 8) & 0xff) * 31) / 255;
uint32_t rA = ((rgba >> 24) & 0xff);
uint32_t gA = ((rgba >> 16) & 0xff);
uint32_t bA = ((rgba >> 8) & 0xff);
uint32_t r = ((rA<<5) - rA) / 255;
uint32_t g = ((gA<<6) - gA) / 255;
uint32_t b = ((bA<<5) - bA) / 255;
return (((r << 6) | g ) << 5 ) | b;
}