50 lines
989 B
C++
50 lines
989 B
C++
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#include "native.h"
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#include "endianutils.h"
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#define MAIN_TYPE BlitType
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#include "macros.h"
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#define memcpy MemMove
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void Display_blit(void *userData68KP) {
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// import variables
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SETPTR (uint8 *, dstBuf )
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SETPTR (const uint8 *, srcBuf )
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SET16 (uint16, dstPitch )
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SET16 (uint16, srcPitch )
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SET16 (uint16, w )
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SET16 (uint16, h )
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SET8 (bool, xflip )
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SET8 (bool, masked )
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// end of import
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if (!masked) { // Unmasked always unflipped
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while (h--) {
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memcpy(dstBuf, srcBuf, w);
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srcBuf += srcPitch;
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dstBuf += dstPitch;
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}
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} else if (!xflip) { // Masked bitmap unflipped
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while (h--) {
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for(int i = 0; i < w; ++i) {
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uint8 b = *(srcBuf + i);
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if(b != 0) {
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*(dstBuf + i) = b;
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}
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}
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srcBuf += srcPitch;
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dstBuf += dstPitch;
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}
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} else { // Masked bitmap flipped
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while (h--) {
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for(int i = 0; i < w; ++i) {
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uint8 b = *(srcBuf + i);
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if(b != 0) {
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*(dstBuf - i) = b;
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}
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}
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srcBuf += srcPitch;
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dstBuf += dstPitch;
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}
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}
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}
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