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600 lines
16 KiB
600 lines
16 KiB
#include "precomp.hxx"
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void Blt24to24P_NoBlend_NoTrans_Hcopy_SRCCOPY_Vcopy(
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DWORD* pdSrcScanLine,
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int iSrcScanStride,
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BYTE* pbDstScanLine,
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int iDstScanStride,
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int iNumDstCols,
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int iNumDstRows)
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{
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DWORD *pdSrcPixel;
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RGBTRIPLE *ptDstPixel,
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*ptEndDstPixel;
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BYTE *pbEndDstScanLine;
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// set up pointer to next dst scanline beyond last
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pbEndDstScanLine = pbDstScanLine + iNumDstRows * iDstScanStride;
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while (pbDstScanLine != pbEndDstScanLine) {
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// set up pointers to the first pixels
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// on src and dst scanlines, and next
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// pixel after last on dst scanline
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pdSrcPixel = pdSrcScanLine;
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ptDstPixel = (RGBTRIPLE *)pbDstScanLine;
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ptEndDstPixel = ptDstPixel + iNumDstCols;
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// copy scanline one pixel at a time
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while (ptDstPixel != ptEndDstPixel) {
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*ptDstPixel++ = *(RGBTRIPLE *)pdSrcPixel++;
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}
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// advance to next scanline
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pdSrcScanLine += iSrcScanStride;
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pbDstScanLine += iDstScanStride;
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}
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}
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void Blt24to24P_NoBlend_NoTrans_Hcopy_SRCCOPY_NoVcopy(
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DWORD* pdSrcScanLine,
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int iSrcScanStride,
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int iNumSrcRows,
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BYTE* pbDstScanLine,
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int iDstScanStride,
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int iNumDstCols,
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int iNumDstRows)
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{
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DWORD *pdSrcPixel;
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RGBTRIPLE *ptDstPixel,
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*ptEndDstPixel;
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int iVertError = 0,
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iVertAdvanceError,
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iSrcScanAdvance;
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// compute advance and error terms for stepping
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// vertically through the src bitmap
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if (iNumSrcRows < iNumDstRows) {
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iSrcScanAdvance = 0;
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iVertAdvanceError = iNumSrcRows;
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} else {
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iSrcScanAdvance = iSrcScanStride * (iNumSrcRows / iNumDstRows);
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iVertAdvanceError = iNumSrcRows % iNumDstRows;
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}
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for (int i = 0; i < iNumDstRows; i++) {
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// set up pointers to first pixels on src and dst
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// scanlines, and next pixel after last on dst
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pdSrcPixel = pdSrcScanLine;
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ptDstPixel = (RGBTRIPLE *)pbDstScanLine;
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ptEndDstPixel = ptDstPixel + iNumDstCols;
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// copy scanline one pixel at a time
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while (ptDstPixel != ptEndDstPixel) {
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*ptDstPixel++ = *(RGBTRIPLE *)pdSrcPixel++;
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}
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// advance to next scanline
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pdSrcScanLine += iSrcScanAdvance;
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pbDstScanLine += iDstScanStride;
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// update and check vertical stepping error,
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// adjust src scanline pointer if necessary
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iVertError += iVertAdvanceError;
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if (iVertError >= iNumDstRows) {
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pdSrcScanLine += iSrcScanStride;
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iVertError -= iNumDstRows;
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}
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}
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}
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void Blt24to24P_NoBlend_NoTrans_NoHcopy_SRCCOPY(
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DWORD* pdSrcScanLine,
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int iSrcScanStride,
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int iNumSrcCols,
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int iNumSrcRows,
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BYTE* pbDstScanLine,
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int iDstScanStride,
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int iNumDstCols,
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int iNumDstRows,
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int iHorizMirror)
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{
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DWORD *pdSrcPixel;
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RGBTRIPLE *ptDstPixel;
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int iVertError = 0,
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iVertAdvanceError,
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iSrcScanAdvance,
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iHorizError,
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iHorizAdvanceError,
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iSrcPixelAdvance;
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// compute advance and error terms for stepping
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// vertically through the src bitmap
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if (iNumSrcRows < iNumDstRows) {
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iSrcScanAdvance = 0;
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iVertAdvanceError = iNumSrcRows;
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} else {
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iSrcScanAdvance = iSrcScanStride * (iNumSrcRows / iNumDstRows);
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iVertAdvanceError = iNumSrcRows % iNumDstRows;
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}
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// compute advance and error terms for stepping
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// horizontally through src bitmap
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if (iNumSrcCols < iNumDstCols) {
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iSrcPixelAdvance = 0;
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iHorizAdvanceError = iNumSrcCols;
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} else {
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iSrcPixelAdvance = iNumSrcCols / iNumDstCols;
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iHorizAdvanceError = iNumSrcCols % iNumDstCols;
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}
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for (int i = 0; i < iNumDstRows; i++) {
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// set pointers to the beginning of src and dst scanlines,
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// clear horizontal stepping error accumulator
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pdSrcPixel = pdSrcScanLine;
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ptDstPixel = (RGBTRIPLE *)pbDstScanLine;
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iHorizError = 0;
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for (int j = 0; j < iNumDstCols; j++) {
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// copy a pixel
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*ptDstPixel = *(RGBTRIPLE *)pdSrcPixel;
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// advance to next pixel
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pdSrcPixel += iSrcPixelAdvance;
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ptDstPixel += iHorizMirror;
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// update and check horizontal stepping error,
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// adjust src pixel pointer if necessary
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iHorizError += iHorizAdvanceError;
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if (iHorizError >= iNumDstCols) {
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pdSrcPixel++;
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iHorizError -= iNumDstCols;
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}
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}
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// advance to next scanline
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pdSrcScanLine += iSrcScanAdvance;
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pbDstScanLine += iDstScanStride;
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// update and check vertical stepping error,
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// adjust src scanline pointer if necessary
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iVertError += iVertAdvanceError;
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if (iVertError >= iNumDstRows) {
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pdSrcScanLine += iSrcScanStride;
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iVertError -= iNumDstRows;
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}
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}
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}
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void Blt24to24P_NoBlend_Trans_Hcopy_SRCCOPY(
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DWORD* pdSrcScanLine,
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int iSrcScanStride,
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int iNumSrcRows,
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BYTE* pbDstScanLine,
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int iDstScanStride,
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int iNumDstCols,
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int iNumDstRows,
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COLORREF crTransparent)
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{
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DWORD *pdSrcPixel;
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RGBTRIPLE *ptDstPixel;
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int iVertError = 0,
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iVertAdvanceError,
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iSrcScanAdvance;
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// compute advance and error terms for stepping
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// vertically through the src bitmap
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if (iNumSrcRows < iNumDstRows) {
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iSrcScanAdvance = 0;
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iVertAdvanceError = iNumSrcRows;
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} else {
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iSrcScanAdvance = iSrcScanStride * (iNumSrcRows / iNumDstRows);
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iVertAdvanceError = iNumSrcRows % iNumDstRows;
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}
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for (int i = 0; i < iNumDstRows; i++) {
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// set pointers to beginning of src and dest scanlines
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pdSrcPixel = pdSrcScanLine;
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ptDstPixel = (RGBTRIPLE *)pbDstScanLine;
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for (int j = 0; j < iNumDstCols; j++) {
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// only copy pixel if it's not transparent
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if ((*pdSrcPixel ^ (DWORD) crTransparent) & UNUSED_MASK) {
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*ptDstPixel = *(RGBTRIPLE *)pdSrcPixel;
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}
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pdSrcPixel++;
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ptDstPixel++;
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}
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// advance to next scanline
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pdSrcScanLine += iSrcScanAdvance;
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pbDstScanLine += iDstScanStride;
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// update and check vertical stepping error,
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// adjust src scanline pointer if necessary
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iVertError += iVertAdvanceError;
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if (iVertError >= iNumDstRows) {
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pdSrcScanLine += iSrcScanStride;
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iVertError -= iNumDstRows;
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}
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}
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}
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void Blt24to24P_NoBlend_Trans_NoHcopy_SRCCOPY(
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DWORD* pdSrcScanLine,
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int iSrcScanStride,
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int iNumSrcCols,
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int iNumSrcRows,
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BYTE* pbDstScanLine,
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int iDstScanStride,
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int iNumDstCols,
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int iNumDstRows,
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int iHorizMirror,
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COLORREF crTransparent)
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{
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DWORD *pdSrcPixel;
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RGBTRIPLE *ptDstPixel;
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int iVertError = 0,
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iVertAdvanceError,
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iSrcScanAdvance,
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iHorizError,
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iHorizAdvanceError,
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iSrcPixelAdvance;
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// compute advance and error terms for stepping
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// vertically through the src bitmap
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if (iNumSrcRows < iNumDstRows) {
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iSrcScanAdvance = 0;
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iVertAdvanceError = iNumSrcRows;
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} else {
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iSrcScanAdvance = iSrcScanStride * (iNumSrcRows / iNumDstRows);
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iVertAdvanceError = iNumSrcRows % iNumDstRows;
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}
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// compute advance and error terms for stepping
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// horizontally through src bitmap
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if (iNumSrcCols < iNumDstCols) {
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iSrcPixelAdvance = 0;
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iHorizAdvanceError = iNumSrcCols;
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} else {
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iSrcPixelAdvance = iNumSrcCols / iNumDstCols;
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iHorizAdvanceError = iNumSrcCols % iNumDstCols;
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}
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for (int i = 0; i < iNumDstRows; i++) {
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// set pointers to the beginning of src and dst scanlines,
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// clear horizontal stepping error accumulator
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pdSrcPixel = pdSrcScanLine;
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ptDstPixel = (RGBTRIPLE *)pbDstScanLine;
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iHorizError = 0;
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for (int j = 0; j < iNumDstCols; j++) {
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// only copy pixel if it's not transparent
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if ((*pdSrcPixel ^ (DWORD) crTransparent) & UNUSED_MASK) {
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*ptDstPixel = *(RGBTRIPLE *)pdSrcPixel;
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}
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// advance to next pixel
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pdSrcPixel += iSrcPixelAdvance;
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ptDstPixel += iHorizMirror;
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// update and check horizontal stepping error,
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// adjust src pixel pointer if necessary
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iHorizError += iHorizAdvanceError;
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if (iHorizError >= iNumDstCols) {
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pdSrcPixel++;
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iHorizError -= iNumDstCols;
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}
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}
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// advance to next scanline
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pdSrcScanLine += iSrcScanAdvance;
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pbDstScanLine += iDstScanStride;
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// update and check vertical stepping error,
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// adjust src scanline pointer if necessary
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iVertError += iVertAdvanceError;
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if (iVertError >= iNumDstRows) {
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pdSrcScanLine += iSrcScanStride;
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iVertError -= iNumDstRows;
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}
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}
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}
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void Blt24to24P_Blend_NoTrans_Hcopy_SRCCOPY(
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DWORD* pdSrcScanLine,
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int iSrcScanStride,
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int iNumSrcRows,
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BYTE* pbDstScanLine,
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int iDstScanStride,
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int iNumDstCols,
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int iNumDstRows,
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ALPHAREF arAlpha)
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{
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DWORD *pdSrcPixel;
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RGBTRIPLE *ptDstPixel,
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*ptEndDstPixel;
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int iVertError = 0,
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iVertAdvanceError,
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iSrcScanAdvance;
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UINT uiAlpha = (UINT)ALPHAFROMDWORD(arAlpha),
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uiAlphaComp = 256 - uiAlpha;
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// compute advance and error terms for stepping
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// vertically through the src bitmap
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if (iNumSrcRows < iNumDstRows) {
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iSrcScanAdvance = 0;
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iVertAdvanceError = iNumSrcRows;
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} else {
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iSrcScanAdvance = iSrcScanStride * (iNumSrcRows / iNumDstRows);
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iVertAdvanceError = iNumSrcRows % iNumDstRows;
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}
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for (int i = 0; i < iNumDstRows; i++) {
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// set up pointers to first pixels on src and dst
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// scanlines, and next pixel after last on dst
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pdSrcPixel = pdSrcScanLine;
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ptDstPixel = (RGBTRIPLE *)pbDstScanLine;
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ptEndDstPixel = ptDstPixel + iNumDstCols;
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// copy scanline one pixel at a time
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while (ptDstPixel != ptEndDstPixel) {
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BlitLib_BLIT_BLEND24(*pdSrcPixel++, ptDstPixel++,
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uiAlpha, uiAlphaComp);
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}
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// advance to next scanline
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pdSrcScanLine += iSrcScanAdvance;
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pbDstScanLine += iDstScanStride;
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// update and check vertical stepping error,
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// adjust src scanline pointer if necessary
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iVertError += iVertAdvanceError;
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if (iVertError >= iNumDstRows) {
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pdSrcScanLine += iSrcScanStride;
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iVertError -= iNumDstRows;
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}
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}
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}
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void Blt24to24P_Blend_NoTrans_NoHcopy_SRCCOPY(
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DWORD* pdSrcScanLine,
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int iSrcScanStride,
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int iNumSrcCols,
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int iNumSrcRows,
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BYTE* pbDstScanLine,
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int iDstScanStride,
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int iNumDstCols,
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int iNumDstRows,
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int iHorizMirror,
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ALPHAREF arAlpha)
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{
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DWORD *pdSrcPixel;
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RGBTRIPLE *ptDstPixel;
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int iVertError = 0,
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iVertAdvanceError,
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iSrcScanAdvance,
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iHorizError,
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iHorizAdvanceError,
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iSrcPixelAdvance;
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UINT uiAlpha = (UINT)ALPHAFROMDWORD(arAlpha),
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uiAlphaComp = 256 - uiAlpha;
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// compute advance and error terms for stepping
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// vertically through the src bitmap
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if (iNumSrcRows < iNumDstRows) {
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iSrcScanAdvance = 0;
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iVertAdvanceError = iNumSrcRows;
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} else {
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iSrcScanAdvance = iSrcScanStride * (iNumSrcRows / iNumDstRows);
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iVertAdvanceError = iNumSrcRows % iNumDstRows;
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}
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// compute advance and error terms for stepping
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// horizontally through src bitmap
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if (iNumSrcCols < iNumDstCols) {
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iSrcPixelAdvance = 0;
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iHorizAdvanceError = iNumSrcCols;
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} else {
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iSrcPixelAdvance = iNumSrcCols / iNumDstCols;
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iHorizAdvanceError = iNumSrcCols % iNumDstCols;
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}
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for (int i = 0; i < iNumDstRows; i++) {
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// set pointers to the beginning of src and dst scanlines,
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// clear horizontal stepping error accumulator
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pdSrcPixel = pdSrcScanLine;
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ptDstPixel = (RGBTRIPLE *)pbDstScanLine;
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iHorizError = 0;
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for (int j = 0; j < iNumDstCols; j++) {
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// copy a pixel
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BlitLib_BLIT_BLEND24(*pdSrcPixel, ptDstPixel,
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uiAlpha, uiAlphaComp);
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// advance to next pixel
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pdSrcPixel += iSrcPixelAdvance;
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ptDstPixel += iHorizMirror;
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// update and check horizontal stepping error,
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// adjust src pixel pointer if necessary
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iHorizError += iHorizAdvanceError;
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if (iHorizError >= iNumDstCols) {
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pdSrcPixel++;
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iHorizError -= iNumDstCols;
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}
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}
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// advance to next scanline
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pdSrcScanLine += iSrcScanAdvance;
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pbDstScanLine += iDstScanStride;
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// update and check vertical stepping error,
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// adjust src scanline pointer if necessary
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iVertError += iVertAdvanceError;
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if (iVertError >= iNumDstRows) {
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pdSrcScanLine += iSrcScanStride;
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iVertError -= iNumDstRows;
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}
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}
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}
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void Blt24to24P_Blend_Trans_Hcopy_SRCCOPY(
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DWORD* pdSrcScanLine,
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int iSrcScanStride,
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int iNumSrcRows,
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BYTE* pbDstScanLine,
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int iDstScanStride,
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int iNumDstCols,
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int iNumDstRows,
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COLORREF crTransparent,
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ALPHAREF arAlpha)
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{
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DWORD *pdSrcPixel;
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RGBTRIPLE *ptDstPixel;
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int iVertError = 0,
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iVertAdvanceError,
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iSrcScanAdvance;
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UINT uiAlpha = (UINT)ALPHAFROMDWORD(arAlpha),
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uiAlphaComp = 256 - uiAlpha;
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// compute advance and error terms for stepping
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// vertically through the src bitmap
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if (iNumSrcRows < iNumDstRows) {
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iSrcScanAdvance = 0;
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iVertAdvanceError = iNumSrcRows;
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} else {
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iSrcScanAdvance = iSrcScanStride * (iNumSrcRows / iNumDstRows);
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iVertAdvanceError = iNumSrcRows % iNumDstRows;
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}
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for (int i = 0; i < iNumDstRows; i++) {
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// set pointers to beginning of src and dest scanlines
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pdSrcPixel = pdSrcScanLine;
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ptDstPixel = (RGBTRIPLE *)pbDstScanLine;
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for (int j = 0; j < iNumDstCols; j++) {
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// only copy pixel if it's not transparent
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if ((*pdSrcPixel ^ (DWORD) crTransparent) & UNUSED_MASK){
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BlitLib_BLIT_BLEND24(*pdSrcPixel, ptDstPixel,
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uiAlpha, uiAlphaComp);
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}
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pdSrcPixel++;
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ptDstPixel++;
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}
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// advance to next scanline
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pdSrcScanLine += iSrcScanAdvance;
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pbDstScanLine += iDstScanStride;
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// update and check vertical stepping error,
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// adjust src scanline pointer if necessary
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iVertError += iVertAdvanceError;
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if (iVertError >= iNumDstRows) {
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pdSrcScanLine += iSrcScanStride;
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iVertError -= iNumDstRows;
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}
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}
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}
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void Blt24to24P_Blend_Trans_NoHcopy_SRCCOPY(
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DWORD* pdSrcScanLine,
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int iSrcScanStride,
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int iNumSrcCols,
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int iNumSrcRows,
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BYTE* pbDstScanLine,
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int iDstScanStride,
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int iNumDstCols,
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int iNumDstRows,
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int iHorizMirror,
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COLORREF crTransparent,
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ALPHAREF arAlpha)
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{
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DWORD *pdSrcPixel;
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RGBTRIPLE *ptDstPixel;
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int iVertError = 0,
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iVertAdvanceError,
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iSrcScanAdvance,
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iHorizError,
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iHorizAdvanceError,
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iSrcPixelAdvance;
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UINT uiAlpha = (UINT)ALPHAFROMDWORD(arAlpha),
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uiAlphaComp = 256 - uiAlpha;
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// compute advance and error terms for stepping
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// vertically through the src bitmap
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if (iNumSrcRows < iNumDstRows) {
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iSrcScanAdvance = 0;
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iVertAdvanceError = iNumSrcRows;
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} else {
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iSrcScanAdvance = iSrcScanStride * (iNumSrcRows / iNumDstRows);
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iVertAdvanceError = iNumSrcRows % iNumDstRows;
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}
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// compute advance and error terms for stepping
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// horizontally through src bitmap
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if (iNumSrcCols < iNumDstCols) {
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iSrcPixelAdvance = 0;
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iHorizAdvanceError = iNumSrcCols;
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} else {
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iSrcPixelAdvance = iNumSrcCols / iNumDstCols;
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iHorizAdvanceError = iNumSrcCols % iNumDstCols;
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}
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for (int i = 0; i < iNumDstRows; i++) {
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// set pointers to the beginning of src and dst scanlines,
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// clear horizontal stepping error accumulator
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pdSrcPixel = pdSrcScanLine;
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ptDstPixel = (RGBTRIPLE *)pbDstScanLine;
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iHorizError = 0;
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for (int j = 0; j < iNumDstCols; j++) {
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// only copy pixel if it's not transparent
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if ((*pdSrcPixel ^ (DWORD) crTransparent) & UNUSED_MASK) {
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BlitLib_BLIT_BLEND24(*pdSrcPixel, ptDstPixel,
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uiAlpha, uiAlphaComp);
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}
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// advance to next pixel
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pdSrcPixel += iSrcPixelAdvance;
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ptDstPixel += iHorizMirror;
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// update and check horizontal stepping error,
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// adjust src pixel pointer if necessary
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iHorizError += iHorizAdvanceError;
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if (iHorizError >= iNumDstCols) {
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pdSrcPixel++;
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iHorizError -= iNumDstCols;
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}
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}
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// advance to next scanline
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pdSrcScanLine += iSrcScanAdvance;
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pbDstScanLine += iDstScanStride;
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// update and check vertical stepping error,
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// adjust src scanline pointer if necessary
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iVertError += iVertAdvanceError;
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if (iVertError >= iNumDstRows) {
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pdSrcScanLine += iSrcScanStride;
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iVertError -= iNumDstRows;
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}
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}
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}
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