mirror of https://github.com/snes9xgit/snes9x.git
542 lines
15 KiB
C++
542 lines
15 KiB
C++
/*****************************************************************************\
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Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
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This file is licensed under the Snes9x License.
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For further information, consult the LICENSE file in the root directory.
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\*****************************************************************************/
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#include "snes9x.h"
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#include "blit.h"
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#define ALL_COLOR_MASK (FIRST_COLOR_MASK | SECOND_COLOR_MASK | THIRD_COLOR_MASK)
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#ifdef GFX_MULTI_FORMAT
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static uint16 lowPixelMask = 0, qlowPixelMask = 0, highBitsMask = 0;
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static uint32 colorMask = 0;
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#else
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#define lowPixelMask (RGB_LOW_BITS_MASK)
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#define qlowPixelMask ((RGB_HI_BITS_MASK >> 3) | TWO_LOW_BITS_MASK)
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#define highBitsMask (ALL_COLOR_MASK & RGB_REMOVE_LOW_BITS_MASK)
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#define colorMask (((~RGB_HI_BITS_MASK & ALL_COLOR_MASK) << 16) | (~RGB_HI_BITS_MASK & ALL_COLOR_MASK))
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#endif
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static snes_ntsc_t *ntsc = NULL;
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static uint8 *XDelta = NULL;
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bool8 S9xBlitFilterInit (void)
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{
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XDelta = new uint8[SNES_WIDTH * SNES_HEIGHT_EXTENDED * 4];
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if (!XDelta)
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return (FALSE);
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S9xBlitClearDelta();
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#ifdef GFX_MULTI_FORMAT
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lowPixelMask = RGB_LOW_BITS_MASK;
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qlowPixelMask = (RGB_HI_BITS_MASK >> 3) | TWO_LOW_BITS_MASK;
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highBitsMask = ALL_COLOR_MASK & RGB_REMOVE_LOW_BITS_MASK;
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colorMask = ((~RGB_HI_BITS_MASK & ALL_COLOR_MASK) << 16) | (~RGB_HI_BITS_MASK & ALL_COLOR_MASK);
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#endif
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return (TRUE);
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}
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void S9xBlitFilterDeinit (void)
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{
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if (XDelta)
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{
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delete[] XDelta;
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XDelta = NULL;
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}
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}
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void S9xBlitClearDelta (void)
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{
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uint32 *d = (uint32 *) XDelta;
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for (int y = 0; y < SNES_HEIGHT_EXTENDED; y++)
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for (int x = 0; x < SNES_WIDTH; x++)
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*d++ = 0x80008000;
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}
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bool8 S9xBlitNTSCFilterInit (void)
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{
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ntsc = (snes_ntsc_t *) malloc(sizeof(snes_ntsc_t));
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if (!ntsc)
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return (FALSE);
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snes_ntsc_init(ntsc, &snes_ntsc_composite);
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return (TRUE);
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}
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void S9xBlitNTSCFilterDeinit (void)
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{
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if (ntsc)
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{
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free(ntsc);
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ntsc = NULL;
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}
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}
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void S9xBlitNTSCFilterSet (const snes_ntsc_setup_t *setup)
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{
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snes_ntsc_init(ntsc, setup);
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}
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void S9xBlitPixSimple1x1 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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width <<= 1;
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for (; height; height--)
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{
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memcpy(dstPtr, srcPtr, width);
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srcPtr += srcRowBytes;
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dstPtr += dstRowBytes;
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}
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}
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void S9xBlitPixSimple1x2 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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width <<= 1;
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for (; height; height--)
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{
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memcpy(dstPtr, srcPtr, width);
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dstPtr += dstRowBytes;
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memcpy(dstPtr, srcPtr, width);
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srcPtr += srcRowBytes;
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dstPtr += dstRowBytes;
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}
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}
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void S9xBlitPixSimple2x1 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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for (; height; height--)
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{
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uint16 *dP = (uint16 *) dstPtr, *bP = (uint16 *) srcPtr;
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for (int i = 0; i < (width >> 1); i++)
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{
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*dP++ = *bP;
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*dP++ = *bP++;
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*dP++ = *bP;
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*dP++ = *bP++;
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}
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srcPtr += srcRowBytes;
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dstPtr += dstRowBytes;
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}
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}
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void S9xBlitPixSimple2x2 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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uint8 *dstPtr2 = dstPtr + dstRowBytes, *deltaPtr = XDelta;
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dstRowBytes <<= 1;
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for (; height; height--)
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{
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uint32 *dP1 = (uint32 *) dstPtr, *dP2 = (uint32 *) dstPtr2, *bP = (uint32 *) srcPtr, *xP = (uint32 *) deltaPtr;
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uint32 currentPixel, lastPixel, currentPixA, currentPixB, colorA, colorB;
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for (int i = 0; i < (width >> 1); i++)
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{
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currentPixel = *bP;
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lastPixel = *xP;
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if (currentPixel != lastPixel)
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{
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#ifdef MSB_FIRST
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colorA = (currentPixel >> 16) & 0xFFFF;
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colorB = (currentPixel ) & 0xFFFF;
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#else
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colorA = (currentPixel ) & 0xFFFF;
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colorB = (currentPixel >> 16) & 0xFFFF;
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#endif
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currentPixA = (colorA << 16) | colorA;
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currentPixB = (colorB << 16) | colorB;
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dP1[0] = currentPixA;
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dP1[1] = currentPixB;
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dP2[0] = currentPixA;
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dP2[1] = currentPixB;
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*xP = *bP;
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}
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bP++;
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xP++;
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dP1 += 2;
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dP2 += 2;
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}
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srcPtr += srcRowBytes;
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deltaPtr += srcRowBytes;
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dstPtr += dstRowBytes;
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dstPtr2 += dstRowBytes;
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}
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}
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void S9xBlitPixBlend1x1 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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for (; height; height--)
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{
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uint16 *dP = (uint16 *) dstPtr, *bP = (uint16 *) srcPtr;
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uint16 prev, curr;
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prev = *bP;
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for (int i = 0; i < (width >> 1); i++)
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{
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curr = *bP++;
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*dP++ = (prev & curr) + (((prev ^ curr) & highBitsMask) >> 1);
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prev = curr;
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curr = *bP++;
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*dP++ = (prev & curr) + (((prev ^ curr) & highBitsMask) >> 1);
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prev = curr;
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}
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srcPtr += srcRowBytes;
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dstPtr += dstRowBytes;
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}
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}
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void S9xBlitPixBlend2x1 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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for (; height; height--)
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{
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uint16 *dP = (uint16 *) dstPtr, *bP = (uint16 *) srcPtr;
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uint16 prev, curr;
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prev = *bP;
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for (int i = 0; i < (width >> 1); i++)
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{
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curr = *bP++;
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*dP++ = (prev & curr) + (((prev ^ curr) & highBitsMask) >> 1);
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*dP++ = curr;
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prev = curr;
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curr = *bP++;
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*dP++ = (prev & curr) + (((prev ^ curr) & highBitsMask) >> 1);
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*dP++ = curr;
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prev = curr;
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}
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srcPtr += srcRowBytes;
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dstPtr += dstRowBytes;
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}
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}
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void S9xBlitPixTV1x2 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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uint8 *dstPtr2 = dstPtr + dstRowBytes;
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dstRowBytes <<= 1;
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for (; height; height--)
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{
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uint32 *dP1 = (uint32 *) dstPtr, *dP2 = (uint32 *) dstPtr2, *bP = (uint32 *) srcPtr;
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uint32 product, darkened;
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for (int i = 0; i < (width >> 1); i++)
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{
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product = *dP1++ = *bP++;
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darkened = (product = (product >> 1) & colorMask);
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darkened += (product = (product >> 1) & colorMask);
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*dP2++ = darkened;
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}
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srcPtr += srcRowBytes;
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dstPtr += dstRowBytes;
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dstPtr2 += dstRowBytes;
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}
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}
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void S9xBlitPixTV2x2 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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uint8 *dstPtr2 = dstPtr + dstRowBytes, *deltaPtr = XDelta;
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dstRowBytes <<= 1;
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for (; height; height--)
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{
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uint32 *dP1 = (uint32 *) dstPtr, *dP2 = (uint32 *) dstPtr2, *bP = (uint32 *) srcPtr, *xP = (uint32 *) deltaPtr;
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uint32 currentPixel, nextPixel, currentDelta, nextDelta, colorA, colorB, product, darkened;
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for (int i = 0; i < (width >> 1) - 1; i++)
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{
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currentPixel = *bP;
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currentDelta = *xP;
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nextPixel = *(bP + 1);
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nextDelta = *(xP + 1);
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if ((currentPixel != currentDelta) || (nextPixel != nextDelta))
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{
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*xP = *bP;
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#ifdef MSB_FIRST
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colorA = (currentPixel >> 16) & 0xFFFF;
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colorB = (currentPixel ) & 0xFFFF;
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#else
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colorA = (currentPixel ) & 0xFFFF;
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colorB = (currentPixel >> 16) & 0xFFFF;
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#endif
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#ifdef MSB_FIRST
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*dP1 = product = (colorA << 16) | ((((colorA >> 1) & colorMask) + ((colorB >> 1) & colorMask) + (colorA & colorB & lowPixelMask)) );
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#else
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*dP1 = product = (colorA ) | ((((colorA >> 1) & colorMask) + ((colorB >> 1) & colorMask) + (colorA & colorB & lowPixelMask)) << 16);
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#endif
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darkened = (product = ((product >> 1) & colorMask));
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darkened += (product = ((product >> 1) & colorMask));
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darkened += (product >> 1) & colorMask;
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*dP2 = darkened;
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#ifdef MSB_FIRST
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colorA = (nextPixel >> 16) & 0xFFFF;
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#else
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colorA = (nextPixel ) & 0xFFFF;
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#endif
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#ifdef MSB_FIRST
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*(dP1 + 1) = product = (colorB << 16) | ((((colorA >> 1) & colorMask) + ((colorB >> 1) & colorMask) + (colorA & colorB & lowPixelMask)) );
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#else
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*(dP1 + 1) = product = (colorB ) | ((((colorA >> 1) & colorMask) + ((colorB >> 1) & colorMask) + (colorA & colorB & lowPixelMask)) << 16);
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#endif
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darkened = (product = ((product >> 1) & colorMask));
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darkened += (product = ((product >> 1) & colorMask));
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darkened += (product >> 1) & colorMask;
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*(dP2 + 1) = darkened;
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}
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bP++;
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xP++;
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dP1 += 2;
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dP2 += 2;
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}
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// Last 2 Pixels
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currentPixel = *bP;
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currentDelta = *xP;
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if (currentPixel != currentDelta)
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{
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*xP = *bP;
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#ifdef MSB_FIRST
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colorA = (currentPixel >> 16) & 0xFFFF;
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colorB = (currentPixel ) & 0xFFFF;
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#else
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colorA = (currentPixel ) & 0xFFFF;
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colorB = (currentPixel >> 16) & 0xFFFF;
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#endif
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#ifdef MSB_FIRST
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*dP1 = product = (colorA << 16) | ((((colorA >> 1) & colorMask) + ((colorB >> 1) & colorMask) + (colorA & colorB & lowPixelMask)) );
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#else
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*dP1 = product = (colorA ) | ((((colorA >> 1) & colorMask) + ((colorB >> 1) & colorMask) + (colorA & colorB & lowPixelMask)) << 16);
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#endif
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darkened = (product = ((product >> 1) & colorMask));
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darkened += (product = ((product >> 1) & colorMask));
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darkened += (product >> 1) & colorMask;
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*dP2 = darkened;
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*(dP1 + 1) = product = (colorB << 16) | colorB;
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darkened = (product = ((product >> 1) & colorMask));
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darkened += (product = ((product >> 1) & colorMask));
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darkened += (product >> 1) & colorMask;
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*(dP2 + 1) = darkened;
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}
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srcPtr += srcRowBytes;
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deltaPtr += srcRowBytes;
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dstPtr += dstRowBytes;
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dstPtr2 += dstRowBytes;
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}
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}
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void S9xBlitPixMixedTV1x2 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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uint8 *dstPtr2 = dstPtr + dstRowBytes, *srcPtr2 = srcPtr + srcRowBytes;
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dstRowBytes <<= 1;
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for (; height > 1; height--)
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{
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uint16 *dP1 = (uint16 *) dstPtr, *dP2 = (uint16 *) dstPtr2, *bP1 = (uint16 *) srcPtr, *bP2 = (uint16 *) srcPtr2;
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uint16 prev, next, mixed;
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for (int i = 0; i < width; i++)
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{
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prev = *bP1++;
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next = *bP2++;
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mixed = prev + next + ((prev ^ next) & lowPixelMask);
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*dP1++ = prev;
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*dP2++ = (mixed >> 1) - (mixed >> 4 & qlowPixelMask);
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}
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srcPtr += srcRowBytes;
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srcPtr2 += srcRowBytes;
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dstPtr += dstRowBytes;
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dstPtr2 += dstRowBytes;
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}
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// Last 1 line
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uint16 *dP1 = (uint16 *) dstPtr, *dP2 = (uint16 *) dstPtr2, *bP1 = (uint16 *) srcPtr;
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uint16 prev, mixed;
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for (int i = 0; i < width; i++)
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{
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prev = *bP1++;
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mixed = prev + ((prev ^ 0) & lowPixelMask);
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*dP1++ = prev;
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*dP2++ = (mixed >> 1) - (mixed >> 4 & qlowPixelMask);
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}
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}
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void S9xBlitPixSmooth2x2 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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uint8 *dstPtr2 = dstPtr + dstRowBytes, *deltaPtr = XDelta;
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uint32 lastLinePix[SNES_WIDTH << 1];
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uint8 lastLineChg[SNES_WIDTH >> 1];
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int lineBytes = width << 1;
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dstRowBytes <<= 1;
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memset(lastLinePix, 0, sizeof(lastLinePix));
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memset(lastLineChg, 0, sizeof(lastLineChg));
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for (; height; height--)
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{
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uint32 *dP1 = (uint32 *) dstPtr, *dP2 = (uint32 *) dstPtr2, *bP = (uint32 *) srcPtr, *xP = (uint32 *) deltaPtr;
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uint32 *lL = lastLinePix;
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uint8 *lC = lastLineChg;
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uint32 currentPixel, nextPixel, currentDelta, nextDelta, lastPix, lastChg, thisChg, currentPixA, currentPixB, colorA, colorB, colorC;
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uint16 savePixel;
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savePixel = *(uint16 *) (srcPtr + lineBytes);
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*(uint16 *) (srcPtr + lineBytes) = *(uint16 *) (srcPtr + lineBytes - 2);
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*(uint32 *) (deltaPtr + lineBytes) = *(uint32 *) (srcPtr + lineBytes);
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nextPixel = *bP++;
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nextDelta = *xP++;
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for (int i = 0; i < (width >> 1); i++)
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{
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currentPixel = nextPixel;
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currentDelta = nextDelta;
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nextPixel = *bP++;
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nextDelta = *xP++;
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lastChg = *lC;
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thisChg = (nextPixel - nextDelta) | (currentPixel - currentDelta);
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#ifdef MSB_FIRST
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colorA = (currentPixel >> 16) & 0xFFFF;
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colorB = (currentPixel ) & 0xFFFF;
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colorC = (nextPixel >> 16) & 0xFFFF;
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currentPixA = (colorA << 16) | ((((colorA >> 1) & colorMask) + ((colorB >> 1) & colorMask) + (colorA & colorB & lowPixelMask)) );
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currentPixB = (colorB << 16) | ((((colorC >> 1) & colorMask) + ((colorB >> 1) & colorMask) + (colorC & colorB & lowPixelMask)) );
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#else
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colorA = (currentPixel ) & 0xFFFF;
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colorB = (currentPixel >> 16) & 0xFFFF;
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colorC = (nextPixel ) & 0xFFFF;
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currentPixA = (colorA ) | ((((colorA >> 1) & colorMask) + ((colorB >> 1) & colorMask) + (colorA & colorB & lowPixelMask)) << 16);
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currentPixB = (colorB ) | ((((colorC >> 1) & colorMask) + ((colorB >> 1) & colorMask) + (colorC & colorB & lowPixelMask)) << 16);
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#endif
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if (thisChg | lastChg)
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{
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xP[-2] = currentPixel;
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lastPix = lL[0];
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dP1[0] = ((currentPixA >> 1) & colorMask) + ((lastPix >> 1) & colorMask) + (currentPixA & lastPix & lowPixelMask);
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dP2[0] = currentPixA;
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lL[0] = currentPixA;
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lastPix = lL[1];
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dP1[1] = ((currentPixB >> 1) & colorMask) + ((lastPix >> 1) & colorMask) + (currentPixB & lastPix & lowPixelMask);
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dP2[1] = currentPixB;
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lL[1] = currentPixB;
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*lC++ = (thisChg != 0);
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}
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else
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{
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lL[0] = currentPixA;
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lL[1] = currentPixB;
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*lC++ = 0;
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}
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lL += 2;
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dP2 += 2;
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dP1 += 2;
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}
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*(uint16 *) (srcPtr + lineBytes) = savePixel;
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srcPtr += srcRowBytes;
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deltaPtr += srcRowBytes;
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dstPtr += dstRowBytes;
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dstPtr2 += dstRowBytes;
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}
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}
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void S9xBlitPixSuper2xSaI16 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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Super2xSaI(srcPtr, srcRowBytes, dstPtr, dstRowBytes, width, height);
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}
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void S9xBlitPix2xSaI16 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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_2xSaI(srcPtr, srcRowBytes, dstPtr, dstRowBytes, width, height);
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}
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void S9xBlitPixSuperEagle16 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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SuperEagle(srcPtr, srcRowBytes, dstPtr, dstRowBytes, width, height);
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}
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void S9xBlitPixEPX16 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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EPX_16(srcPtr, srcRowBytes, dstPtr, dstRowBytes, width, height);
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}
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void S9xBlitPixHQ2x16 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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HQ2X_16(srcPtr, srcRowBytes, dstPtr, dstRowBytes, width, height);
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}
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void S9xBlitPixHQ3x16 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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HQ3X_16(srcPtr, srcRowBytes, dstPtr, dstRowBytes, width, height);
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}
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void S9xBlitPixHQ4x16 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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HQ4X_16(srcPtr, srcRowBytes, dstPtr, dstRowBytes, width, height);
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}
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void S9xBlitPixNTSC16 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
|
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{
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snes_ntsc_blit(ntsc, (SNES_NTSC_IN_T const *) srcPtr, srcRowBytes >> 1, 0, width, height, dstPtr, dstRowBytes);
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}
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void S9xBlitPixHiResNTSC16 (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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snes_ntsc_blit_hires(ntsc, (SNES_NTSC_IN_T const *) srcPtr, srcRowBytes >> 1, 0, width, height, dstPtr, dstRowBytes);
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}
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