662 lines
19 KiB
C++
662 lines
19 KiB
C++
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// File: Blt.cpp
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// Author: Michael Marr (mikemarr)
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//
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// History:
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// -@- 09/23/97 (mikemarr) copied to DXCConv from d2d\mmimage
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// -@- 10/28/97 (mikemarr) added colorfill routines
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//
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// Notes:
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// Asserts can not be used because the code may be executing on
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// pixels in the front buffer. If there is an assertion failure,
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// GDI might lock up.
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#include "stdafx.h"
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#include "PalMap.h"
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#include "Blt.h"
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ColorFillFn g_rgColorFillFn[5] = {
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NULL, ColorFill8, ColorFill16, ColorFill24, ColorFill32
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};
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HasPixelFn g_rgHasPixelFn[5] = {
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NULL, HasPixel8, HasPixel16, HasPixel24, HasPixel32
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};
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// Function: ColorFill
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// These functions are designed for small color fills...
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HRESULT
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ColorFill8(BYTE *pDstPixels, DWORD nDstPitch,
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DWORD nWidth, DWORD nHeight, DWORD dwColor)
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{
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BYTE iColor = (BYTE) dwColor;
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DWORD i, j;
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for (i = 0; i < nHeight; i++) {
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for (j = 0; j < nWidth; j++)
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pDstPixels[j] = iColor;
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pDstPixels += nDstPitch;
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}
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return S_OK;
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}
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HRESULT
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ColorFill16(BYTE *pDstPixels, DWORD nDstPitch,
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DWORD nWidth, DWORD nHeight, DWORD dwColor)
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{
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WORD wColor = (WORD) dwColor;
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DWORD i, j;
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for (i = 0; i < nHeight; i++) {
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WORD *pwDstPixels = (WORD *) pDstPixels;
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for (j = 0; j < nWidth; j++)
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*pwDstPixels++ = wColor;
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pDstPixels += nDstPitch;
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}
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return S_OK;
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}
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HRESULT
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ColorFill24(BYTE *pDstPixels, DWORD nDstPitch,
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DWORD nWidth, DWORD nHeight, DWORD dwColor)
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{
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BYTE c0 = (BYTE) dwColor;
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BYTE c1 = (BYTE) (dwColor >> 8);
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BYTE c2 = (BYTE) (dwColor >> 16);
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DWORD i, j;
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for (i = 0; i < nHeight; i++) {
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BYTE *pDstNext = pDstPixels + nDstPitch;
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for (j = 0; j < nWidth; j++) {
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pDstPixels[0] = c0;
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pDstPixels[1] = c1;
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pDstPixels[2] = c2;
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pDstPixels += 3;
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}
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pDstPixels = pDstNext;
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}
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return S_OK;
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}
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HRESULT
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ColorFill32(BYTE *pDstPixels, DWORD nDstPitch,
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DWORD nWidth, DWORD nHeight, DWORD dwColor)
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{
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DWORD i, j;
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for (i = 0; i < nHeight; i++) {
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DWORD *pdwDstPixels = (DWORD *) pDstPixels;
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for (j = 0; j < nWidth; j++)
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*pdwDstPixels++ = dwColor;
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pDstPixels += nDstPitch;
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}
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return S_OK;
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}
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HRESULT
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HasPixel8(const BYTE *pSrcPixels, DWORD nSrcPitch, DWORD dwPixel,
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DWORD nSrcWidth, DWORD nHeight, BOOL *pb)
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{
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BYTE iPixel = (BYTE) dwPixel;
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if (nSrcPitch == nSrcWidth) {
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// do a flat search thru contiguous memory
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*pb = (memchr(pSrcPixels, iPixel, nSrcPitch * nHeight) != NULL);
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} else {
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// do search line by line
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for (; nHeight; nHeight--) {
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if (memchr(pSrcPixels, iPixel, nSrcWidth) != NULL) {
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*pb = TRUE;
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return S_OK;
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}
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pSrcPixels += nSrcPitch;
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}
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*pb = FALSE;
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}
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return S_OK;
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}
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HRESULT
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HasPixel16(const BYTE *pSrcPixels, DWORD nSrcPitch, DWORD dwPixel,
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DWORD nSrcWidth, DWORD nHeight, BOOL *pb)
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{
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WORD wPixel = (WORD) dwPixel;
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for (; nHeight; nHeight--) {
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const WORD *pPixels = (const WORD *) pSrcPixels;
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const WORD *pLimit = pPixels + nSrcWidth;
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while (pPixels != pLimit) {
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if (*pPixels++ == wPixel) {
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*pb = TRUE;
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return S_OK;
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}
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}
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pSrcPixels += nSrcPitch;
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}
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*pb = FALSE;
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return S_OK;
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}
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HRESULT
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HasPixel24(const BYTE *pSrcPixels, DWORD nSrcPitch, DWORD dwPixel,
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DWORD nSrcWidth, DWORD nHeight, BOOL *pb)
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{
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// REVIEW: only works on little endian machines
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BYTE c0 = (BYTE) dwPixel;
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BYTE c1 = (BYTE) (dwPixel >> 8);
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BYTE c2 = (BYTE) (dwPixel >> 16);
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DWORD nWidth = nSrcWidth * 3;
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for (; nHeight; nHeight--) {
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const BYTE *pPixels = pSrcPixels;
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const BYTE *pLimit = pPixels + nWidth;
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while (pPixels != pLimit) {
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if ((pPixels[0] == c0) && (pPixels[1] == c1) && (pPixels[2] == c2)) {
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*pb = TRUE;
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return S_OK;
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}
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pPixels += 3;
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}
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pSrcPixels += nSrcPitch;
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}
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*pb = FALSE;
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return S_OK;
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}
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HRESULT
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HasPixel32(const BYTE *pSrcPixels, DWORD nSrcPitch, DWORD dwPixel,
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DWORD nSrcWidth, DWORD nHeight, BOOL *pb)
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{
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for (; nHeight; nHeight--) {
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const DWORD *pPixels = (const DWORD *) pSrcPixels;
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const DWORD *pLimit = pPixels + nSrcWidth;
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while (pPixels != pLimit) {
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if (*pPixels++ == dwPixel) {
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*pb = TRUE;
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return S_OK;
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}
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}
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pSrcPixels += nSrcPitch;
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}
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*pb = FALSE;
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return S_OK;
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}
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HRESULT
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BltFast(const BYTE *pSrcPixels, DWORD nSrcPitch,
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BYTE *pDstPixels, DWORD nDstPitch, DWORD nSrcWidth, DWORD nHeight)
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{
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if (nSrcWidth == nDstPitch) {
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// do a flat copy
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memcpy(pDstPixels, pSrcPixels, nSrcPitch * nHeight);
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} else {
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LPBYTE pPixelLimit = pDstPixels + nDstPitch * nHeight;
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// copy each row
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for (; pDstPixels != pPixelLimit; ) {
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memcpy(pDstPixels, pSrcPixels, nSrcWidth);
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pDstPixels += nDstPitch;
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pSrcPixels += nSrcPitch;
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}
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}
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return S_OK;
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}
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HRESULT
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BltFast8CK(const BYTE *pSrcPixels, DWORD nSrcPitch,
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BYTE *pDstPixels, DWORD nDstPitch,
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DWORD nSrcWidth, DWORD nHeight, DWORD dwTrans)
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{
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if ((nSrcWidth == 0) || (nHeight == 0))
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return S_OK;
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DWORD nRemainder = (nSrcWidth & 0x7);
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DWORD nAligned = (nSrcWidth & ~0x7);
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const BYTE *pSrcLineStart = pSrcPixels;
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const BYTE *pPixelLimit = pSrcPixels + (nHeight * nSrcPitch);
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DWORD nSrcAlignedPitch = nSrcPitch + nAligned;
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DWORD nDstAlignedPitch = nDstPitch + nAligned;
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pSrcPixels += nAligned;
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pDstPixels += nAligned;
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BYTE iTrans = BYTE(dwTrans), uch;
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do {
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switch (nRemainder) {
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do {
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case 0: pDstPixels -= 8; pSrcPixels -= 8;
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if ((uch = pSrcPixels[7]) != iTrans) pDstPixels[7] = uch;
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case 7: if ((uch = pSrcPixels[6]) != iTrans) pDstPixels[6] = uch;
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case 6: if ((uch = pSrcPixels[5]) != iTrans) pDstPixels[5] = uch;
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case 5: if ((uch = pSrcPixels[4]) != iTrans) pDstPixels[4] = uch;
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case 4: if ((uch = pSrcPixels[3]) != iTrans) pDstPixels[3] = uch;
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case 3: if ((uch = pSrcPixels[2]) != iTrans) pDstPixels[2] = uch;
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case 2: if ((uch = pSrcPixels[1]) != iTrans) pDstPixels[1] = uch;
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case 1: if ((uch = pSrcPixels[0]) != iTrans) pDstPixels[0] = uch;
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} while (pSrcPixels != pSrcLineStart);
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}
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pSrcLineStart += nSrcPitch;
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pSrcPixels += nSrcAlignedPitch;
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pDstPixels += nDstAlignedPitch;
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} while (pSrcLineStart != pPixelLimit);
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return S_OK;
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}
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HRESULT
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BltFastMirrorY(const BYTE *pSrcPixels, DWORD nSrcPitch,
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BYTE *pDstPixels, DWORD nDstPitch, DWORD nSrcWidth, DWORD nHeight)
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{
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LPBYTE pPixelLimit = pDstPixels + nDstPitch * nHeight;
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// set the src pixels to point to the last line of the bitmap
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pSrcPixels += nSrcPitch * (nHeight - 1);
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// copy each row
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for (; pDstPixels != pPixelLimit; ) {
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memcpy(pDstPixels, pSrcPixels, nSrcWidth);
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pDstPixels += nDstPitch;
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pSrcPixels -= nSrcPitch;
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}
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return S_OK;
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}
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HRESULT
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BltFastRGBToRGB(const BYTE *pSrcPixels, DWORD nSrcPitch,
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BYTE *pDstPixels, DWORD nDstPitch,
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DWORD nWidth, DWORD nHeight,
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const CPixelInfo &pixiSrc, const CPixelInfo &pixiDst)
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{
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if (pixiSrc.nBPP == 24) {
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if (pixiDst.nBPP == 16)
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return BltFast24To16(pSrcPixels, nSrcPitch, pDstPixels, nDstPitch,
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nWidth, nHeight, pixiSrc, pixiDst);
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if (pixiDst.nBPP == 32)
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return BltFast24To32(pSrcPixels, nSrcPitch, pDstPixels, nDstPitch,
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nWidth, nHeight, pixiSrc, pixiDst);
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} else if (pixiSrc.nBPP == 32) {
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if (pixiDst.nBPP == 32)
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return BltFast32To32(pSrcPixels, nSrcPitch, pDstPixels, nDstPitch,
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nWidth, nHeight, pixiSrc, pixiDst);
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}
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return E_NOTIMPL;
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}
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HRESULT
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BltFast32To32(const BYTE *pSrcPixels, DWORD nSrcPitch,
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BYTE *pDstPixels, DWORD nDstPitch,
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DWORD nWidth, DWORD nHeight,
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const CPixelInfo &pixiSrc, const CPixelInfo &pixiDst)
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{
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if (nSrcPitch == 0)
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nSrcPitch = nWidth * 4;
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if (nDstPitch == 0)
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nDstPitch = nWidth * 4;
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DWORD nDeltaSrcPitch = nSrcPitch - (nWidth * 4);
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const BYTE *pPixelLimit = pSrcPixels + nSrcPitch * nHeight;
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DWORD iRed = pixiSrc.iRed, iBlue = pixiSrc.iBlue;
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// copy each row
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for (; pSrcPixels != pPixelLimit; ) {
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LPDWORD pdwDstPixel = (LPDWORD) pDstPixels;
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for (DWORD i = nWidth; i != 0; i--) {
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*pdwDstPixel++ = pixiDst.Pack(pSrcPixels[iRed], pSrcPixels[1], pSrcPixels[iBlue], pSrcPixels[3]);
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pSrcPixels += 4;
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}
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pDstPixels += nDstPitch;
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pSrcPixels += nDeltaSrcPitch;
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}
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return S_OK;
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}
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HRESULT
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BltFast24To16(const BYTE *pSrcPixels, DWORD nSrcPitch,
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BYTE *pDstPixels, DWORD nDstPitch,
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DWORD nWidth, DWORD nHeight,
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const CPixelInfo &pixiSrc, const CPixelInfo &pixiDst)
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{
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if (nSrcPitch == 0)
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nSrcPitch = nWidth * 3;
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if (nDstPitch == 0)
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nDstPitch = nWidth * 2;
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DWORD nDeltaSrcPitch = nSrcPitch - (nWidth * 3);
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const BYTE *pPixelLimit = pSrcPixels + nSrcPitch * nHeight;
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DWORD iRed = pixiSrc.iRed, iBlue = pixiSrc.iBlue;
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// copy each row
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for (; pSrcPixels != pPixelLimit; ) {
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LPWORD pwDstPixel = (LPWORD) pDstPixels;
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for (DWORD i = nWidth; i != 0; i--) {
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*pwDstPixel++ = pixiDst.Pack16(pSrcPixels[iRed], pSrcPixels[1], pSrcPixels[iBlue]);
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pSrcPixels += 3;
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}
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pDstPixels += nDstPitch;
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pSrcPixels += nDeltaSrcPitch;
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}
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return S_OK;
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}
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HRESULT
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BltFast24To32(const BYTE *pSrcPixels, DWORD nSrcPitch,
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BYTE *pDstPixels, DWORD nDstPitch,
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DWORD nWidth, DWORD nHeight,
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const CPixelInfo &pixiSrc, const CPixelInfo &pixiDst)
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{
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if (nSrcPitch == 0)
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nSrcPitch = nWidth * 3;
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if (nDstPitch == 0)
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nDstPitch = nWidth * 4;
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DWORD nDeltaSrcPitch = nSrcPitch - (nWidth * 3);
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DWORD iRed = pixiSrc.iRed, iBlue = pixiSrc.iBlue;
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// copy each row
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const BYTE *pPixelLimit = pSrcPixels + nSrcPitch * nHeight;
|
||
|
|
for (; pSrcPixels != pPixelLimit; ) {
|
||
|
|
LPDWORD pdwDstPixel = (LPDWORD) pDstPixels;
|
||
|
|
for (DWORD i = nWidth; i != 0; i--) {
|
||
|
|
*pdwDstPixel++ = pixiDst.Pack(pSrcPixels[iRed], pSrcPixels[1], pSrcPixels[iBlue]);
|
||
|
|
pSrcPixels += 3;
|
||
|
|
}
|
||
|
|
pDstPixels += nDstPitch;
|
||
|
|
pSrcPixels += nDeltaSrcPitch;
|
||
|
|
}
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
BltFast8To4(const BYTE *pSrcPixels, DWORD nSrcPitch,
|
||
|
|
BYTE *pDstPixels, DWORD nDstPitch,
|
||
|
|
DWORD nWidth, DWORD nHeight, DWORD nOffset)
|
||
|
|
{
|
||
|
|
return E_NOTIMPL;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
BltFast8To2(const BYTE *pSrcPixels, DWORD nSrcPitch,
|
||
|
|
BYTE *pDstPixels, DWORD nDstPitch,
|
||
|
|
DWORD nWidth, DWORD nHeight, DWORD nOffset)
|
||
|
|
{
|
||
|
|
return E_NOTIMPL;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
BltFast8To1(const BYTE *pSrcPixels, long nSrcPitch,
|
||
|
|
BYTE *pDstPixels, long nDstPitch,
|
||
|
|
DWORD nWidth, DWORD nHeight, DWORD nOffset)
|
||
|
|
{
|
||
|
|
HRESULT hr = E_NOTIMPL;
|
||
|
|
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
BltFast8To8T(const BYTE *pSrcPixel, long nSrcPitch, BYTE *pDstPixel, long nDstPitch,
|
||
|
|
DWORD nWidth, DWORD nHeight, const BYTE *pIndexMap)
|
||
|
|
{
|
||
|
|
if ((nWidth == 0) || (nHeight == 0))
|
||
|
|
return S_OK;
|
||
|
|
|
||
|
|
DWORD nRemainder = (nWidth & 0x7);
|
||
|
|
DWORD nAligned = (nWidth & ~0x7);
|
||
|
|
const BYTE *pSrcLineStart = pSrcPixel;
|
||
|
|
const BYTE *pPixelLimit = pSrcPixel + (nHeight * nSrcPitch);
|
||
|
|
DWORD nSrcAlignedPitch = nSrcPitch + nAligned;
|
||
|
|
DWORD nDstAlignedPitch = nDstPitch + nAligned;
|
||
|
|
pSrcPixel += nAligned;
|
||
|
|
pDstPixel += nAligned;
|
||
|
|
|
||
|
|
do {
|
||
|
|
switch (nRemainder) {
|
||
|
|
do {
|
||
|
|
case 0: pDstPixel -= 8; pSrcPixel -= 8;
|
||
|
|
pDstPixel[7] = pIndexMap[pSrcPixel[7]];
|
||
|
|
case 7: pDstPixel[6] = pIndexMap[pSrcPixel[6]];
|
||
|
|
case 6: pDstPixel[5] = pIndexMap[pSrcPixel[5]];
|
||
|
|
case 5: pDstPixel[4] = pIndexMap[pSrcPixel[4]];
|
||
|
|
case 4: pDstPixel[3] = pIndexMap[pSrcPixel[3]];
|
||
|
|
case 3: pDstPixel[2] = pIndexMap[pSrcPixel[2]];
|
||
|
|
case 2: pDstPixel[1] = pIndexMap[pSrcPixel[1]];
|
||
|
|
case 1: pDstPixel[0] = pIndexMap[pSrcPixel[0]];
|
||
|
|
} while (pSrcPixel != pSrcLineStart);
|
||
|
|
}
|
||
|
|
pSrcLineStart += nSrcPitch;
|
||
|
|
pSrcPixel += nSrcAlignedPitch;
|
||
|
|
pDstPixel += nDstAlignedPitch;
|
||
|
|
} while (pSrcLineStart != pPixelLimit);
|
||
|
|
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
BltFast8To16T(const BYTE *pSrcPixel, long nSrcPitch, BYTE *pDstPixel, long nDstPitch,
|
||
|
|
DWORD nWidth, DWORD nHeight, const BYTE *pIndexMap)
|
||
|
|
{
|
||
|
|
#ifdef _DEBUG
|
||
|
|
if ((long(pDstPixel) & 0x1) || (nDstPitch & 0x1) || (nWidth == 0) || (nHeight == 0))
|
||
|
|
return E_INVALIDARG;
|
||
|
|
#endif
|
||
|
|
DWORD nRemainder = (nWidth & 0x7);
|
||
|
|
DWORD nAligned = (nWidth & ~0x7);
|
||
|
|
const BYTE *pSrcLineStart = pSrcPixel;
|
||
|
|
const BYTE *pPixelLimit = pSrcPixel + (nHeight * nSrcPitch);
|
||
|
|
DWORD nSrcAlignedPitch = nSrcPitch + nAligned;
|
||
|
|
DWORD nDstAlignedPitch = (nDstPitch >> 1) + nAligned;
|
||
|
|
pSrcPixel += nAligned;
|
||
|
|
WORD *pDstPixel16 = ((WORD *) pDstPixel) + nAligned;
|
||
|
|
MapEntry16 *pIndexMap16 = (MapEntry16 *) pIndexMap;
|
||
|
|
|
||
|
|
do {
|
||
|
|
switch (nRemainder) {
|
||
|
|
do {
|
||
|
|
case 0: pDstPixel16 -= 8; pSrcPixel -= 8;
|
||
|
|
pDstPixel16[7] = pIndexMap16[pSrcPixel[7]];
|
||
|
|
case 7: pDstPixel16[6] = pIndexMap16[pSrcPixel[6]];
|
||
|
|
case 6: pDstPixel16[5] = pIndexMap16[pSrcPixel[5]];
|
||
|
|
case 5: pDstPixel16[4] = pIndexMap16[pSrcPixel[4]];
|
||
|
|
case 4: pDstPixel16[3] = pIndexMap16[pSrcPixel[3]];
|
||
|
|
case 3: pDstPixel16[2] = pIndexMap16[pSrcPixel[2]];
|
||
|
|
case 2: pDstPixel16[1] = pIndexMap16[pSrcPixel[1]];
|
||
|
|
case 1: pDstPixel16[0] = pIndexMap16[pSrcPixel[0]];
|
||
|
|
} while (pSrcPixel != pSrcLineStart);
|
||
|
|
}
|
||
|
|
pSrcLineStart += nSrcPitch;
|
||
|
|
pSrcPixel += nSrcAlignedPitch;
|
||
|
|
pDstPixel16 += nDstAlignedPitch;
|
||
|
|
} while (pSrcLineStart != pPixelLimit);
|
||
|
|
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
BltFast8To24T(const BYTE *pSrcPixels, long nSrcPitch, BYTE *pDstPixels, long nDstPitch,
|
||
|
|
DWORD nWidth, DWORD nHeight, const BYTE *pIndexMap)
|
||
|
|
{
|
||
|
|
MapEntry24 *pIndexMap24 = (MapEntry24 *) pIndexMap;
|
||
|
|
BYTE *pDstPixelsLimit = pDstPixels + nDstPitch * nHeight;
|
||
|
|
int nDstWidth = nWidth * 3;
|
||
|
|
|
||
|
|
for (; pDstPixels != pDstPixelsLimit; ) {
|
||
|
|
const BYTE *pSrcPixel = pSrcPixels;
|
||
|
|
BYTE *pDstPixel = pDstPixels;
|
||
|
|
BYTE *pDstPixelLimit = pDstPixel + nDstWidth;
|
||
|
|
for (; pDstPixel != pDstPixelLimit; ) {
|
||
|
|
MapEntry24 mePixel = pIndexMap24[*pSrcPixel++];
|
||
|
|
*pDstPixel++ = (BYTE) (mePixel);
|
||
|
|
*pDstPixel++ = (BYTE) (mePixel >> 8);
|
||
|
|
*pDstPixel++ = (BYTE) (mePixel >> 16);
|
||
|
|
}
|
||
|
|
pDstPixels += nDstPitch;
|
||
|
|
pSrcPixels += nSrcPitch;
|
||
|
|
}
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
BltFast8To32T(const BYTE *pSrcPixels, long nSrcPitch, BYTE *pDstPixels, long nDstPitch,
|
||
|
|
DWORD nWidth, DWORD nHeight, const BYTE *pIndexMap)
|
||
|
|
{
|
||
|
|
#ifdef _DEBUG
|
||
|
|
if ((long(pDstPixels) & 0x3) != 0)
|
||
|
|
return E_INVALIDARG;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
MapEntry32 *pIndexMap32 = (MapEntry32 *) pIndexMap;
|
||
|
|
int nDstPitch32 = nDstPitch >> 2;
|
||
|
|
DWORD *pDstPixels32 = (DWORD *) pDstPixels;
|
||
|
|
DWORD *pDstPixelsLimit = pDstPixels32 + nDstPitch32 * nHeight;
|
||
|
|
|
||
|
|
for (; pDstPixels32 != pDstPixelsLimit; ) {
|
||
|
|
const BYTE *pSrcPixel = pSrcPixels;
|
||
|
|
DWORD *pDstPixel = pDstPixels32;
|
||
|
|
DWORD *pDstPixelLimit = pDstPixel + nWidth;
|
||
|
|
for (; pDstPixel != pDstPixelLimit; ) {
|
||
|
|
*pDstPixel++ = pIndexMap32[*pSrcPixel++];
|
||
|
|
}
|
||
|
|
pDstPixels32 += nDstPitch32;
|
||
|
|
pSrcPixels += nSrcPitch;
|
||
|
|
}
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// RLE
|
||
|
|
//
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
BltFastRLE8(DWORD nXPos, DWORD nYPos, const BYTE *pSrcPixels, long nSrcPitch,
|
||
|
|
BYTE *pDstPixels, long nDstPitch, const LPRECT prSrcRect)
|
||
|
|
{
|
||
|
|
return E_NOTIMPL;
|
||
|
|
}
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
BltFastRLE8To8T(DWORD nXPos, DWORD nYPos, const BYTE *pSrcPixels, long nSrcPitch,
|
||
|
|
BYTE *pDstPixels, long nDstPitch, const LPRECT prSrcRect,
|
||
|
|
const BYTE *pIndexMap)
|
||
|
|
{
|
||
|
|
return E_NOTIMPL;
|
||
|
|
}
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
BltFastRLE8To16T(DWORD nXPos, DWORD nYPos, const BYTE *pSrcPixels, long nSrcPitch,
|
||
|
|
BYTE *pDstPixels, long nDstPitch, const LPRECT prSrcRect,
|
||
|
|
const BYTE *pIndexMap)
|
||
|
|
{
|
||
|
|
return E_NOTIMPL;
|
||
|
|
}
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
BltFastRLE8To24T(DWORD nXPos, DWORD nYPos, const BYTE *pSrcPixels, long nSrcPitch,
|
||
|
|
BYTE *pDstPixels, long nDstPitch, const LPRECT prSrcRect,
|
||
|
|
const BYTE *pIndexMap)
|
||
|
|
{
|
||
|
|
return E_NOTIMPL;
|
||
|
|
}
|
||
|
|
|
||
|
|
HRESULT
|
||
|
|
BltFastRLE8To32T(DWORD nXPos, DWORD nYPos, const BYTE *pSrcPixels, long nSrcPitch,
|
||
|
|
BYTE *pDstPixels, long nDstPitch, const LPRECT prSrcRect,
|
||
|
|
const BYTE *pIndexMap)
|
||
|
|
{
|
||
|
|
return E_NOTIMPL;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
// Function: Write4BitRow
|
||
|
|
// This function packs a buffer of unsigned char's representing
|
||
|
|
// 4 bit numbers into a packed unsigned char buffer. It is assumed
|
||
|
|
// that the bytes in the src have the uppermost 4 bits zeroed out.
|
||
|
|
void *
|
||
|
|
Write4BitRow(void *pDst, const void *pSrc, unsigned int cCount)
|
||
|
|
{
|
||
|
|
// use an inverse Duff machine
|
||
|
|
int nRemainder = cCount & 0x07;
|
||
|
|
int nAligned = cCount - nRemainder;
|
||
|
|
const unsigned char *puchSrc = (const unsigned char *) pSrc + nAligned;
|
||
|
|
unsigned char *puchDst = (unsigned char *) pDst + (nAligned >> 1);
|
||
|
|
unsigned char uchCompositionBuf = 0;
|
||
|
|
|
||
|
|
switch (nRemainder) {
|
||
|
|
do {
|
||
|
|
puchDst -= 4; puchSrc -= 8;
|
||
|
|
uchCompositionBuf = puchSrc[7];
|
||
|
|
case 7: puchDst[3] = (puchSrc[6] << 4) | uchCompositionBuf;
|
||
|
|
case 6: uchCompositionBuf = puchSrc[5];
|
||
|
|
case 5: puchDst[2] = (puchSrc[4] << 4) | uchCompositionBuf;
|
||
|
|
case 4: uchCompositionBuf = puchSrc[3];
|
||
|
|
case 3: puchDst[1] = (puchSrc[2] << 4) | uchCompositionBuf;
|
||
|
|
case 2: uchCompositionBuf = puchSrc[1];
|
||
|
|
case 1: puchDst[0] = (puchSrc[0] << 4) | uchCompositionBuf;
|
||
|
|
case 0: ;
|
||
|
|
} while (puchDst != (unsigned char *) pDst);
|
||
|
|
}
|
||
|
|
|
||
|
|
return pDst;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Function: Write2BitRow
|
||
|
|
// This function packs a buffer of unsigned char's representing
|
||
|
|
// 2 bit numbers into a packed unsigned char buffer. It is assumed
|
||
|
|
// that the bytes in the src have the uppermost 6 bits zeroed out.
|
||
|
|
void *
|
||
|
|
Write2BitRow(void *pDst, const void *pSrc, unsigned int cCount)
|
||
|
|
{
|
||
|
|
// use an inverse Duff machine
|
||
|
|
int nRemainder = cCount & 0x07;
|
||
|
|
int nAligned = cCount - nRemainder;
|
||
|
|
const unsigned char *puchSrc = (const unsigned char *) pSrc + nAligned;
|
||
|
|
unsigned char *puchDst = (unsigned char *) pDst + (nAligned >> 2);
|
||
|
|
unsigned char uchCompositionBuf = 0;
|
||
|
|
|
||
|
|
switch (nRemainder) {
|
||
|
|
do {
|
||
|
|
puchDst -= 2; puchSrc -= 8;
|
||
|
|
uchCompositionBuf = puchSrc[7];
|
||
|
|
case 7: uchCompositionBuf |= (puchSrc[6] << 2);
|
||
|
|
case 6: uchCompositionBuf |= (puchSrc[5] << 4);
|
||
|
|
case 5: puchDst[1] = (puchSrc[4] << 6) | uchCompositionBuf;
|
||
|
|
case 4: uchCompositionBuf = puchSrc[3];
|
||
|
|
case 3: uchCompositionBuf |= (puchSrc[2] << 2);
|
||
|
|
case 2: uchCompositionBuf |= (puchSrc[1] << 4);
|
||
|
|
case 1: puchDst[0] = (puchSrc[0] << 6) | uchCompositionBuf;
|
||
|
|
case 0: ;
|
||
|
|
} while (puchDst != (unsigned char *) pDst);
|
||
|
|
}
|
||
|
|
|
||
|
|
return pDst;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Function: Write1BitRow
|
||
|
|
// This function packs a buffer of unsigned char's representing
|
||
|
|
// 1 bit numbers into a packed unsigned char buffer. It is assumed
|
||
|
|
// that the bytes in the src have the uppermost 7 bits zeroed out.
|
||
|
|
void *
|
||
|
|
Write1BitRow(void *pDst, const void *pSrc, unsigned int cCount)
|
||
|
|
{
|
||
|
|
// use an inverse Duff machine
|
||
|
|
int nRemainder = cCount & 0x07;
|
||
|
|
int nAligned = cCount - nRemainder;
|
||
|
|
const unsigned char *puchSrc = (const unsigned char *) pSrc + nAligned;
|
||
|
|
unsigned char *puchDst = (unsigned char *) pDst + (nAligned >> 3);
|
||
|
|
unsigned char uchCompositionBuf = 0;
|
||
|
|
|
||
|
|
switch (nRemainder) {
|
||
|
|
do {
|
||
|
|
puchDst -= 1; puchSrc -= 8;
|
||
|
|
uchCompositionBuf = puchSrc[7];
|
||
|
|
case 7: uchCompositionBuf |= (puchSrc[6] << 1);
|
||
|
|
case 6: uchCompositionBuf |= (puchSrc[5] << 2);
|
||
|
|
case 5: uchCompositionBuf |= (puchSrc[4] << 3);
|
||
|
|
case 4: uchCompositionBuf |= (puchSrc[3] << 4);
|
||
|
|
case 3: uchCompositionBuf |= (puchSrc[2] << 5);
|
||
|
|
case 2: uchCompositionBuf |= (puchSrc[1] << 6);
|
||
|
|
case 1: puchDst[0] = (puchSrc[0] << 7) | uchCompositionBuf;
|
||
|
|
case 0: ;
|
||
|
|
} while (puchDst != (unsigned char *) pDst);
|
||
|
|
}
|
||
|
|
|
||
|
|
return pDst;
|
||
|
|
}
|
||
|
|
*/
|