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Implemented OSystem_Dreamcast::grabPalette().

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svn-id: r18472
This commit is contained in:
Marcus Comstedt 2005-06-27 15:16:58 +00:00
parent 9e13459338
commit e2d1b7afa4
2 changed files with 15 additions and 0 deletions
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1
backends/dc/dc.h
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@ -64,6 +64,7 @@ class OSystem_Dreamcast : public OSystem {
// Set colors of the palette
void setPalette(const byte *colors, uint start, uint num);
void grabPalette(byte *colors, uint start, uint num);
// Set the size of the video bitmap.
// Typically, 320x200

14
backends/dc/display.cpp
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@ -142,6 +142,20 @@ void OSystem_Dreamcast::setPalette(const byte *colors, uint start, uint num)
_screen_dirty = true;
}
void OSystem_Dreamcast::grabPalette(byte *colors, uint start, uint num)
{
const unsigned short *src = palette + start;
if(num>0)
while( num-- ) {
unsigned short p = *src++;
colors[0] = ((p&0x7c00)>>7)|((p&0x7000)>>12);
colors[1] = ((p&0x03e0)>>2)|((p&0x0380)>>7);
colors[2] = ((p&0x001f)<<3)|((p&0x001c)>>2);
colors[3] = 0xff;
colors += 4;
}
}
void OSystem_Dreamcast::setScaling()
{
if(_screen_w > 400) {