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new landscape aspect scaler (n0p)

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svn-id: r23003
This commit is contained in:
Kostas Nakos 2006-06-10 11:08:34 +00:00
parent a2651ff7cb
commit 33e6264954
2 changed files with 58 additions and 0 deletions
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57
backends/wince/CEScaler.cpp
View File

@ -72,6 +72,63 @@ void PocketPCPortrait(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint3
}
}
void PocketPCLandscapeAspect(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height) {
#define RB(x) ((x & redblueMasks[maskUsed])<<8)
#define G(x) ((x & greenMasks[maskUsed])<<3)
#define P20(x) (((x)>>2)-((x)>>4))
#define P40(x) (((x)>>1)-((x)>>3))
#define P60(x) (((x)>>1)+((x)>>3))
#define P80(x) (((x)>>1)+((x)>>2)+((x)>>4))
#define MAKEPIXEL(rb,g) ((((rb)>>8) & redblueMasks[maskUsed] | ((g)>>3) & greenMasks[maskUsed]))
int i,j;
unsigned int p1;
unsigned int p2;
uint16 * inbuf;
uint16 * outbuf;
inbuf=(uint16 *)srcPtr;
outbuf=(uint16 *)dstPtr;
uint16 srcPitch16 = (uint16)(srcPitch / sizeof(uint16));
uint16 dstPitch16 = (uint16)(dstPitch / sizeof(uint16));
for (i=0; i<((height)/6); i++) {
for (j=0; j<width; j++) {
p1=*((uint16*)inbuf+j);
inbuf+=srcPitch16;
*((uint16*)outbuf+j)=p1;
outbuf+=dstPitch16;
p2=*((uint16*)inbuf+j);
inbuf+=srcPitch16;
*((uint16*)outbuf+j)=MAKEPIXEL(P20(RB(p1))+P80(RB(p2)),P20(G(p1))+P80(G(p2)));
outbuf+=dstPitch16;
p1=p2;
p2=*((uint16*)inbuf+j);
inbuf+=srcPitch16;
*((uint16*)outbuf+j)=MAKEPIXEL(P40(RB(p1))+P60(RB(p2)),P40(G(p1))+P60(G(p2)));
outbuf+=dstPitch16;
p1=p2;
p2=*((uint16*)inbuf+j);
inbuf+=srcPitch16;
*((uint16*)outbuf+j)=MAKEPIXEL(P60(RB(p1))+P40(RB(p2)),P60(G(p1))+P40(G(p2)));
outbuf+=dstPitch16;
p1=p2;
p2=*((uint16*)inbuf+j);
*((uint16*)outbuf+j)=MAKEPIXEL(P80(RB(p1))+P20(RB(p2)),P80(G(p1))+P20(G(p2)));
outbuf+=dstPitch16;
*((uint16*)outbuf+j)=p2;
inbuf=inbuf-srcPitch16*4;
outbuf=outbuf-dstPitch16*5;
}
inbuf=inbuf+srcPitch16*5;
outbuf=outbuf+dstPitch16*6;
}
}
void PocketPCHalf(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height) {
uint8 *work;
int i;

1
backends/wince/CEScaler.h
View File

@ -30,6 +30,7 @@
#include "graphics/scaler/intern.h"
DECLARE_SCALER(PocketPCPortrait);
DECLARE_SCALER(PocketPCLandscapeAspect);
DECLARE_SCALER(PocketPCHalf);
DECLARE_SCALER(PocketPCHalfZoom);
//#ifdef WIN32_PLATFORM_WFSP