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path: root/core/fxcodec/jbig2/JBig2_Image.cpp
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Diffstat (limited to 'core/fxcodec/jbig2/JBig2_Image.cpp')
-rw-r--r--core/fxcodec/jbig2/JBig2_Image.cpp1099
1 files changed, 1099 insertions, 0 deletions
diff --git a/core/fxcodec/jbig2/JBig2_Image.cpp b/core/fxcodec/jbig2/JBig2_Image.cpp
new file mode 100644
index 0000000000..311c38270e
--- /dev/null
+++ b/core/fxcodec/jbig2/JBig2_Image.cpp
@@ -0,0 +1,1099 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include <limits.h>
+
+#include "core/fxcodec/jbig2/JBig2_Image.h"
+#include "core/include/fxcrt/fx_coordinates.h"
+#include "core/include/fxcrt/fx_safe_types.h"
+
+CJBig2_Image::CJBig2_Image(int32_t w, int32_t h) {
+ m_nWidth = w;
+ m_nHeight = h;
+ if (m_nWidth <= 0 || m_nHeight <= 0 || m_nWidth > INT_MAX - 31) {
+ m_pData = NULL;
+ m_bNeedFree = FALSE;
+ return;
+ }
+ m_nStride = ((w + 31) >> 5) << 2;
+ if (m_nStride * m_nHeight > 0 && 104857600 / (int)m_nStride > m_nHeight) {
+ m_pData = FX_Alloc2D(uint8_t, m_nStride, m_nHeight);
+ } else {
+ m_pData = NULL;
+ }
+ m_bNeedFree = TRUE;
+}
+CJBig2_Image::CJBig2_Image(int32_t w,
+ int32_t h,
+ int32_t stride,
+ uint8_t* pBuf) {
+ m_nWidth = w;
+ m_nHeight = h;
+ m_nStride = stride;
+ m_pData = pBuf;
+ m_bNeedFree = FALSE;
+}
+CJBig2_Image::CJBig2_Image(const CJBig2_Image& im) {
+ m_nWidth = im.m_nWidth;
+ m_nHeight = im.m_nHeight;
+ m_nStride = im.m_nStride;
+ if (im.m_pData) {
+ m_pData = FX_Alloc2D(uint8_t, m_nStride, m_nHeight);
+ JBIG2_memcpy(m_pData, im.m_pData, m_nStride * m_nHeight);
+ } else {
+ m_pData = NULL;
+ }
+ m_bNeedFree = TRUE;
+}
+CJBig2_Image::~CJBig2_Image() {
+ if (m_bNeedFree) {
+ FX_Free(m_pData);
+ }
+}
+FX_BOOL CJBig2_Image::getPixel(int32_t x, int32_t y) {
+ if (!m_pData) {
+ return 0;
+ }
+ int32_t m, n;
+ if (x < 0 || x >= m_nWidth) {
+ return 0;
+ }
+ if (y < 0 || y >= m_nHeight) {
+ return 0;
+ }
+ m = y * m_nStride + (x >> 3);
+ n = x & 7;
+ return ((m_pData[m] >> (7 - n)) & 1);
+}
+
+int32_t CJBig2_Image::setPixel(int32_t x, int32_t y, FX_BOOL v) {
+ if (!m_pData) {
+ return 0;
+ }
+ int32_t m, n;
+ if (x < 0 || x >= m_nWidth) {
+ return 0;
+ }
+ if (y < 0 || y >= m_nHeight) {
+ return 0;
+ }
+ m = y * m_nStride + (x >> 3);
+ n = x & 7;
+ if (v) {
+ m_pData[m] |= 1 << (7 - n);
+ } else {
+ m_pData[m] &= ~(1 << (7 - n));
+ }
+ return 1;
+}
+void CJBig2_Image::copyLine(int32_t hTo, int32_t hFrom) {
+ if (!m_pData) {
+ return;
+ }
+ if (hFrom < 0 || hFrom >= m_nHeight) {
+ JBIG2_memset(m_pData + hTo * m_nStride, 0, m_nStride);
+ } else {
+ JBIG2_memcpy(m_pData + hTo * m_nStride, m_pData + hFrom * m_nStride,
+ m_nStride);
+ }
+}
+void CJBig2_Image::fill(FX_BOOL v) {
+ if (!m_pData) {
+ return;
+ }
+ JBIG2_memset(m_pData, v ? 0xff : 0, m_nStride * m_nHeight);
+}
+FX_BOOL CJBig2_Image::composeTo(CJBig2_Image* pDst,
+ int32_t x,
+ int32_t y,
+ JBig2ComposeOp op) {
+ if (!m_pData) {
+ return FALSE;
+ }
+ return composeTo_opt2(pDst, x, y, op);
+}
+FX_BOOL CJBig2_Image::composeTo(CJBig2_Image* pDst,
+ int32_t x,
+ int32_t y,
+ JBig2ComposeOp op,
+ const FX_RECT* pSrcRect) {
+ if (!m_pData) {
+ return FALSE;
+ }
+ if (NULL == pSrcRect || *pSrcRect == FX_RECT(0, 0, m_nWidth, m_nHeight)) {
+ return composeTo_opt2(pDst, x, y, op);
+ }
+ return composeTo_opt2(pDst, x, y, op, pSrcRect);
+}
+
+FX_BOOL CJBig2_Image::composeFrom(int32_t x,
+ int32_t y,
+ CJBig2_Image* pSrc,
+ JBig2ComposeOp op) {
+ if (!m_pData) {
+ return FALSE;
+ }
+ return pSrc->composeTo(this, x, y, op);
+}
+FX_BOOL CJBig2_Image::composeFrom(int32_t x,
+ int32_t y,
+ CJBig2_Image* pSrc,
+ JBig2ComposeOp op,
+ const FX_RECT* pSrcRect) {
+ if (!m_pData) {
+ return FALSE;
+ }
+ return pSrc->composeTo(this, x, y, op, pSrcRect);
+}
+#define JBIG2_GETDWORD(buf) \
+ ((FX_DWORD)(((buf)[0] << 24) | ((buf)[1] << 16) | ((buf)[2] << 8) | (buf)[3]))
+CJBig2_Image* CJBig2_Image::subImage(int32_t x,
+ int32_t y,
+ int32_t w,
+ int32_t h) {
+ int32_t m, n, j;
+ uint8_t *pLineSrc, *pLineDst;
+ FX_DWORD wTmp;
+ uint8_t *pSrc, *pSrcEnd, *pDst, *pDstEnd;
+ if (w == 0 || h == 0) {
+ return NULL;
+ }
+ CJBig2_Image* pImage = new CJBig2_Image(w, h);
+ if (!m_pData) {
+ pImage->fill(0);
+ return pImage;
+ }
+ if (!pImage->m_pData) {
+ return pImage;
+ }
+ pLineSrc = m_pData + m_nStride * y;
+ pLineDst = pImage->m_pData;
+ m = (x >> 5) << 2;
+ n = x & 31;
+ if (n == 0) {
+ for (j = 0; j < h; j++) {
+ pSrc = pLineSrc + m;
+ pSrcEnd = pLineSrc + m_nStride;
+ pDst = pLineDst;
+ pDstEnd = pLineDst + pImage->m_nStride;
+ for (; pDst < pDstEnd; pSrc += 4, pDst += 4) {
+ *((FX_DWORD*)pDst) = *((FX_DWORD*)pSrc);
+ }
+ pLineSrc += m_nStride;
+ pLineDst += pImage->m_nStride;
+ }
+ } else {
+ for (j = 0; j < h; j++) {
+ pSrc = pLineSrc + m;
+ pSrcEnd = pLineSrc + m_nStride;
+ pDst = pLineDst;
+ pDstEnd = pLineDst + pImage->m_nStride;
+ for (; pDst < pDstEnd; pSrc += 4, pDst += 4) {
+ if (pSrc + 4 < pSrcEnd) {
+ wTmp = (JBIG2_GETDWORD(pSrc) << n) |
+ (JBIG2_GETDWORD(pSrc + 4) >> (32 - n));
+ } else {
+ wTmp = JBIG2_GETDWORD(pSrc) << n;
+ }
+ pDst[0] = (uint8_t)(wTmp >> 24);
+ pDst[1] = (uint8_t)(wTmp >> 16);
+ pDst[2] = (uint8_t)(wTmp >> 8);
+ pDst[3] = (uint8_t)wTmp;
+ }
+ pLineSrc += m_nStride;
+ pLineDst += pImage->m_nStride;
+ }
+ }
+ return pImage;
+}
+void CJBig2_Image::expand(int32_t h, FX_BOOL v) {
+ if (!m_pData || h <= m_nHeight) {
+ return;
+ }
+ FX_DWORD dwH = pdfium::base::checked_cast<FX_DWORD>(h);
+ FX_DWORD dwStride = pdfium::base::checked_cast<FX_DWORD>(m_nStride);
+ FX_DWORD dwHeight = pdfium::base::checked_cast<FX_DWORD>(m_nHeight);
+ FX_SAFE_DWORD safeMemSize = dwH;
+ safeMemSize *= dwStride;
+ if (!safeMemSize.IsValid()) {
+ return;
+ }
+ // The guaranteed reallocated memory is to be < 4GB (unsigned int).
+ m_pData = FX_Realloc(uint8_t, m_pData, safeMemSize.ValueOrDie());
+
+ // The result of dwHeight * dwStride doesn't overflow after the
+ // checking of safeMemSize.
+ // The same as the result of (dwH - dwHeight) * dwStride) because
+ // dwH - dwHeight is always less than dwH(h) which is checked in
+ // the calculation of dwH * dwStride.
+ JBIG2_memset(m_pData + dwHeight * dwStride, v ? 0xff : 0,
+ (dwH - dwHeight) * dwStride);
+ m_nHeight = h;
+}
+FX_BOOL CJBig2_Image::composeTo_opt2(CJBig2_Image* pDst,
+ int32_t x,
+ int32_t y,
+ JBig2ComposeOp op) {
+ int32_t xs0 = 0, ys0 = 0, xs1 = 0, ys1 = 0, xd0 = 0, yd0 = 0, xd1 = 0,
+ yd1 = 0, xx = 0, yy = 0, w = 0, h = 0, middleDwords = 0, lineLeft = 0;
+
+ FX_DWORD s1 = 0, d1 = 0, d2 = 0, shift = 0, shift1 = 0, shift2 = 0, tmp = 0,
+ tmp1 = 0, tmp2 = 0, maskL = 0, maskR = 0, maskM = 0;
+
+ uint8_t *lineSrc = NULL, *lineDst = NULL, *sp = NULL, *dp = NULL;
+
+ if (!m_pData) {
+ return FALSE;
+ }
+ if (x < -1048576 || x > 1048576 || y < -1048576 || y > 1048576) {
+ return FALSE;
+ }
+ if (y < 0) {
+ ys0 = -y;
+ }
+ if (y + m_nHeight > pDst->m_nHeight) {
+ ys1 = pDst->m_nHeight - y;
+ } else {
+ ys1 = m_nHeight;
+ }
+ if (x < 0) {
+ xs0 = -x;
+ }
+ if (x + m_nWidth > pDst->m_nWidth) {
+ xs1 = pDst->m_nWidth - x;
+ } else {
+ xs1 = m_nWidth;
+ }
+ if ((ys0 >= ys1) || (xs0 >= xs1)) {
+ return 0;
+ }
+ w = xs1 - xs0;
+ h = ys1 - ys0;
+ if (y >= 0) {
+ yd0 = y;
+ }
+ if (x >= 0) {
+ xd0 = x;
+ }
+ xd1 = xd0 + w;
+ yd1 = yd0 + h;
+ d1 = xd0 & 31;
+ d2 = xd1 & 31;
+ s1 = xs0 & 31;
+ maskL = 0xffffffff >> d1;
+ maskR = 0xffffffff << ((32 - (xd1 & 31)) % 32);
+ maskM = maskL & maskR;
+ lineSrc = m_pData + ys0 * m_nStride + ((xs0 >> 5) << 2);
+ lineLeft = m_nStride - ((xs0 >> 5) << 2);
+ lineDst = pDst->m_pData + yd0 * pDst->m_nStride + ((xd0 >> 5) << 2);
+ if ((xd0 & ~31) == ((xd1 - 1) & ~31)) {
+ if ((xs0 & ~31) == ((xs1 - 1) & ~31)) {
+ if (s1 > d1) {
+ shift = s1 - d1;
+ for (yy = yd0; yy < yd1; yy++) {
+ tmp1 = JBIG2_GETDWORD(lineSrc) << shift;
+ tmp2 = JBIG2_GETDWORD(lineDst);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = (tmp2 & ~maskM) | ((tmp1 | tmp2) & maskM);
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = (tmp2 & ~maskM) | ((tmp1 & tmp2) & maskM);
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = (tmp2 & ~maskM) | ((tmp1 ^ tmp2) & maskM);
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = (tmp2 & ~maskM) | ((~(tmp1 ^ tmp2)) & maskM);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = (tmp2 & ~maskM) | (tmp1 & maskM);
+ break;
+ }
+ lineDst[0] = (uint8_t)(tmp >> 24);
+ lineDst[1] = (uint8_t)(tmp >> 16);
+ lineDst[2] = (uint8_t)(tmp >> 8);
+ lineDst[3] = (uint8_t)tmp;
+ lineSrc += m_nStride;
+ lineDst += pDst->m_nStride;
+ }
+ } else {
+ shift = d1 - s1;
+ for (yy = yd0; yy < yd1; yy++) {
+ tmp1 = JBIG2_GETDWORD(lineSrc) >> shift;
+ tmp2 = JBIG2_GETDWORD(lineDst);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = (tmp2 & ~maskM) | ((tmp1 | tmp2) & maskM);
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = (tmp2 & ~maskM) | ((tmp1 & tmp2) & maskM);
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = (tmp2 & ~maskM) | ((tmp1 ^ tmp2) & maskM);
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = (tmp2 & ~maskM) | ((~(tmp1 ^ tmp2)) & maskM);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = (tmp2 & ~maskM) | (tmp1 & maskM);
+ break;
+ }
+ lineDst[0] = (uint8_t)(tmp >> 24);
+ lineDst[1] = (uint8_t)(tmp >> 16);
+ lineDst[2] = (uint8_t)(tmp >> 8);
+ lineDst[3] = (uint8_t)tmp;
+ lineSrc += m_nStride;
+ lineDst += pDst->m_nStride;
+ }
+ }
+ } else {
+ shift1 = s1 - d1;
+ shift2 = 32 - shift1;
+ for (yy = yd0; yy < yd1; yy++) {
+ tmp1 = (JBIG2_GETDWORD(lineSrc) << shift1) |
+ (JBIG2_GETDWORD(lineSrc + 4) >> shift2);
+ tmp2 = JBIG2_GETDWORD(lineDst);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = (tmp2 & ~maskM) | ((tmp1 | tmp2) & maskM);
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = (tmp2 & ~maskM) | ((tmp1 & tmp2) & maskM);
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = (tmp2 & ~maskM) | ((tmp1 ^ tmp2) & maskM);
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = (tmp2 & ~maskM) | ((~(tmp1 ^ tmp2)) & maskM);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = (tmp2 & ~maskM) | (tmp1 & maskM);
+ break;
+ }
+ lineDst[0] = (uint8_t)(tmp >> 24);
+ lineDst[1] = (uint8_t)(tmp >> 16);
+ lineDst[2] = (uint8_t)(tmp >> 8);
+ lineDst[3] = (uint8_t)tmp;
+ lineSrc += m_nStride;
+ lineDst += pDst->m_nStride;
+ }
+ }
+ } else {
+ if (s1 > d1) {
+ shift1 = s1 - d1;
+ shift2 = 32 - shift1;
+ middleDwords = (xd1 >> 5) - ((xd0 + 31) >> 5);
+ for (yy = yd0; yy < yd1; yy++) {
+ sp = lineSrc;
+ dp = lineDst;
+ if (d1 != 0) {
+ tmp1 = (JBIG2_GETDWORD(sp) << shift1) |
+ (JBIG2_GETDWORD(sp + 4) >> shift2);
+ tmp2 = JBIG2_GETDWORD(dp);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = (tmp2 & ~maskL) | ((tmp1 | tmp2) & maskL);
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = (tmp2 & ~maskL) | ((tmp1 & tmp2) & maskL);
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = (tmp2 & ~maskL) | ((tmp1 ^ tmp2) & maskL);
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = (tmp2 & ~maskL) | ((~(tmp1 ^ tmp2)) & maskL);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = (tmp2 & ~maskL) | (tmp1 & maskL);
+ break;
+ }
+ dp[0] = (uint8_t)(tmp >> 24);
+ dp[1] = (uint8_t)(tmp >> 16);
+ dp[2] = (uint8_t)(tmp >> 8);
+ dp[3] = (uint8_t)tmp;
+ sp += 4;
+ dp += 4;
+ }
+ for (xx = 0; xx < middleDwords; xx++) {
+ tmp1 = (JBIG2_GETDWORD(sp) << shift1) |
+ (JBIG2_GETDWORD(sp + 4) >> shift2);
+ tmp2 = JBIG2_GETDWORD(dp);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = tmp1 | tmp2;
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = tmp1 & tmp2;
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = tmp1 ^ tmp2;
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = ~(tmp1 ^ tmp2);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = tmp1;
+ break;
+ }
+ dp[0] = (uint8_t)(tmp >> 24);
+ dp[1] = (uint8_t)(tmp >> 16);
+ dp[2] = (uint8_t)(tmp >> 8);
+ dp[3] = (uint8_t)tmp;
+ sp += 4;
+ dp += 4;
+ }
+ if (d2 != 0) {
+ tmp1 =
+ (JBIG2_GETDWORD(sp) << shift1) |
+ (((sp + 4) < lineSrc + lineLeft ? JBIG2_GETDWORD(sp + 4) : 0) >>
+ shift2);
+ tmp2 = JBIG2_GETDWORD(dp);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = (tmp2 & ~maskR) | ((tmp1 | tmp2) & maskR);
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = (tmp2 & ~maskR) | ((tmp1 & tmp2) & maskR);
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = (tmp2 & ~maskR) | ((tmp1 ^ tmp2) & maskR);
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = (tmp2 & ~maskR) | ((~(tmp1 ^ tmp2)) & maskR);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = (tmp2 & ~maskR) | (tmp1 & maskR);
+ break;
+ }
+ dp[0] = (uint8_t)(tmp >> 24);
+ dp[1] = (uint8_t)(tmp >> 16);
+ dp[2] = (uint8_t)(tmp >> 8);
+ dp[3] = (uint8_t)tmp;
+ }
+ lineSrc += m_nStride;
+ lineDst += pDst->m_nStride;
+ }
+ } else if (s1 == d1) {
+ middleDwords = (xd1 >> 5) - ((xd0 + 31) >> 5);
+ for (yy = yd0; yy < yd1; yy++) {
+ sp = lineSrc;
+ dp = lineDst;
+ if (d1 != 0) {
+ tmp1 = JBIG2_GETDWORD(sp);
+ tmp2 = JBIG2_GETDWORD(dp);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = (tmp2 & ~maskL) | ((tmp1 | tmp2) & maskL);
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = (tmp2 & ~maskL) | ((tmp1 & tmp2) & maskL);
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = (tmp2 & ~maskL) | ((tmp1 ^ tmp2) & maskL);
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = (tmp2 & ~maskL) | ((~(tmp1 ^ tmp2)) & maskL);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = (tmp2 & ~maskL) | (tmp1 & maskL);
+ break;
+ }
+ dp[0] = (uint8_t)(tmp >> 24);
+ dp[1] = (uint8_t)(tmp >> 16);
+ dp[2] = (uint8_t)(tmp >> 8);
+ dp[3] = (uint8_t)tmp;
+ sp += 4;
+ dp += 4;
+ }
+ for (xx = 0; xx < middleDwords; xx++) {
+ tmp1 = JBIG2_GETDWORD(sp);
+ tmp2 = JBIG2_GETDWORD(dp);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = tmp1 | tmp2;
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = tmp1 & tmp2;
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = tmp1 ^ tmp2;
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = ~(tmp1 ^ tmp2);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = tmp1;
+ break;
+ }
+ dp[0] = (uint8_t)(tmp >> 24);
+ dp[1] = (uint8_t)(tmp >> 16);
+ dp[2] = (uint8_t)(tmp >> 8);
+ dp[3] = (uint8_t)tmp;
+ sp += 4;
+ dp += 4;
+ }
+ if (d2 != 0) {
+ tmp1 = JBIG2_GETDWORD(sp);
+ tmp2 = JBIG2_GETDWORD(dp);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = (tmp2 & ~maskR) | ((tmp1 | tmp2) & maskR);
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = (tmp2 & ~maskR) | ((tmp1 & tmp2) & maskR);
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = (tmp2 & ~maskR) | ((tmp1 ^ tmp2) & maskR);
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = (tmp2 & ~maskR) | ((~(tmp1 ^ tmp2)) & maskR);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = (tmp2 & ~maskR) | (tmp1 & maskR);
+ break;
+ }
+ dp[0] = (uint8_t)(tmp >> 24);
+ dp[1] = (uint8_t)(tmp >> 16);
+ dp[2] = (uint8_t)(tmp >> 8);
+ dp[3] = (uint8_t)tmp;
+ }
+ lineSrc += m_nStride;
+ lineDst += pDst->m_nStride;
+ }
+ } else {
+ shift1 = d1 - s1;
+ shift2 = 32 - shift1;
+ middleDwords = (xd1 >> 5) - ((xd0 + 31) >> 5);
+ for (yy = yd0; yy < yd1; yy++) {
+ sp = lineSrc;
+ dp = lineDst;
+ if (d1 != 0) {
+ tmp1 = JBIG2_GETDWORD(sp) >> shift1;
+ tmp2 = JBIG2_GETDWORD(dp);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = (tmp2 & ~maskL) | ((tmp1 | tmp2) & maskL);
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = (tmp2 & ~maskL) | ((tmp1 & tmp2) & maskL);
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = (tmp2 & ~maskL) | ((tmp1 ^ tmp2) & maskL);
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = (tmp2 & ~maskL) | ((~(tmp1 ^ tmp2)) & maskL);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = (tmp2 & ~maskL) | (tmp1 & maskL);
+ break;
+ }
+ dp[0] = (uint8_t)(tmp >> 24);
+ dp[1] = (uint8_t)(tmp >> 16);
+ dp[2] = (uint8_t)(tmp >> 8);
+ dp[3] = (uint8_t)tmp;
+ dp += 4;
+ }
+ for (xx = 0; xx < middleDwords; xx++) {
+ tmp1 = (JBIG2_GETDWORD(sp) << shift2) |
+ ((JBIG2_GETDWORD(sp + 4)) >> shift1);
+ tmp2 = JBIG2_GETDWORD(dp);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = tmp1 | tmp2;
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = tmp1 & tmp2;
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = tmp1 ^ tmp2;
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = ~(tmp1 ^ tmp2);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = tmp1;
+ break;
+ }
+ dp[0] = (uint8_t)(tmp >> 24);
+ dp[1] = (uint8_t)(tmp >> 16);
+ dp[2] = (uint8_t)(tmp >> 8);
+ dp[3] = (uint8_t)tmp;
+ sp += 4;
+ dp += 4;
+ }
+ if (d2 != 0) {
+ tmp1 =
+ (JBIG2_GETDWORD(sp) << shift2) |
+ (((sp + 4) < lineSrc + lineLeft ? JBIG2_GETDWORD(sp + 4) : 0) >>
+ shift1);
+ tmp2 = JBIG2_GETDWORD(dp);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = (tmp2 & ~maskR) | ((tmp1 | tmp2) & maskR);
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = (tmp2 & ~maskR) | ((tmp1 & tmp2) & maskR);
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = (tmp2 & ~maskR) | ((tmp1 ^ tmp2) & maskR);
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = (tmp2 & ~maskR) | ((~(tmp1 ^ tmp2)) & maskR);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = (tmp2 & ~maskR) | (tmp1 & maskR);
+ break;
+ }
+ dp[0] = (uint8_t)(tmp >> 24);
+ dp[1] = (uint8_t)(tmp >> 16);
+ dp[2] = (uint8_t)(tmp >> 8);
+ dp[3] = (uint8_t)tmp;
+ }
+ lineSrc += m_nStride;
+ lineDst += pDst->m_nStride;
+ }
+ }
+ }
+ return 1;
+}
+FX_BOOL CJBig2_Image::composeTo_opt2(CJBig2_Image* pDst,
+ int32_t x,
+ int32_t y,
+ JBig2ComposeOp op,
+ const FX_RECT* pSrcRect) {
+ int32_t xs0, ys0, xs1, ys1, xd0, yd0, xd1, yd1, xx, yy, w, h, middleDwords,
+ lineLeft;
+ FX_DWORD s1, d1, d2, shift, shift1, shift2, tmp, tmp1, tmp2, maskL, maskR,
+ maskM;
+ uint8_t *lineSrc, *lineDst, *sp, *dp;
+ int32_t sw, sh;
+ if (!m_pData) {
+ return FALSE;
+ }
+ if (x < -1048576 || x > 1048576 || y < -1048576 || y > 1048576) {
+ return FALSE;
+ }
+ sw = pSrcRect->Width();
+ sh = pSrcRect->Height();
+ if (y < 0) {
+ ys0 = -y;
+ } else {
+ ys0 = 0;
+ }
+ if (y + sh > pDst->m_nHeight) {
+ ys1 = pDst->m_nHeight - y;
+ } else {
+ ys1 = sh;
+ }
+ if (x < 0) {
+ xs0 = -x;
+ } else {
+ xs0 = 0;
+ }
+ if (x + sw > pDst->m_nWidth) {
+ xs1 = pDst->m_nWidth - x;
+ } else {
+ xs1 = sw;
+ }
+ if ((ys0 >= ys1) || (xs0 >= xs1)) {
+ return 0;
+ }
+ w = xs1 - xs0;
+ h = ys1 - ys0;
+ if (y < 0) {
+ yd0 = 0;
+ } else {
+ yd0 = y;
+ }
+ if (x < 0) {
+ xd0 = 0;
+ } else {
+ xd0 = x;
+ }
+ xd1 = xd0 + w;
+ yd1 = yd0 + h;
+ d1 = xd0 & 31;
+ d2 = xd1 & 31;
+ s1 = xs0 & 31;
+ maskL = 0xffffffff >> d1;
+ maskR = 0xffffffff << ((32 - (xd1 & 31)) % 32);
+ maskM = maskL & maskR;
+ lineSrc = m_pData + (pSrcRect->top + ys0) * m_nStride +
+ (((xs0 + pSrcRect->left) >> 5) << 2);
+ lineLeft = m_nStride - ((xs0 >> 5) << 2);
+ lineDst = pDst->m_pData + yd0 * pDst->m_nStride + ((xd0 >> 5) << 2);
+ if ((xd0 & ~31) == ((xd1 - 1) & ~31)) {
+ if ((xs0 & ~31) == ((xs1 - 1) & ~31)) {
+ if (s1 > d1) {
+ shift = s1 - d1;
+ for (yy = yd0; yy < yd1; yy++) {
+ tmp1 = JBIG2_GETDWORD(lineSrc) << shift;
+ tmp2 = JBIG2_GETDWORD(lineDst);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = (tmp2 & ~maskM) | ((tmp1 | tmp2) & maskM);
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = (tmp2 & ~maskM) | ((tmp1 & tmp2) & maskM);
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = (tmp2 & ~maskM) | ((tmp1 ^ tmp2) & maskM);
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = (tmp2 & ~maskM) | ((~(tmp1 ^ tmp2)) & maskM);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = (tmp2 & ~maskM) | (tmp1 & maskM);
+ break;
+ }
+ lineDst[0] = (uint8_t)(tmp >> 24);
+ lineDst[1] = (uint8_t)(tmp >> 16);
+ lineDst[2] = (uint8_t)(tmp >> 8);
+ lineDst[3] = (uint8_t)tmp;
+ lineSrc += m_nStride;
+ lineDst += pDst->m_nStride;
+ }
+ } else {
+ shift = d1 - s1;
+ for (yy = yd0; yy < yd1; yy++) {
+ tmp1 = JBIG2_GETDWORD(lineSrc) >> shift;
+ tmp2 = JBIG2_GETDWORD(lineDst);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = (tmp2 & ~maskM) | ((tmp1 | tmp2) & maskM);
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = (tmp2 & ~maskM) | ((tmp1 & tmp2) & maskM);
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = (tmp2 & ~maskM) | ((tmp1 ^ tmp2) & maskM);
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = (tmp2 & ~maskM) | ((~(tmp1 ^ tmp2)) & maskM);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = (tmp2 & ~maskM) | (tmp1 & maskM);
+ break;
+ }
+ lineDst[0] = (uint8_t)(tmp >> 24);
+ lineDst[1] = (uint8_t)(tmp >> 16);
+ lineDst[2] = (uint8_t)(tmp >> 8);
+ lineDst[3] = (uint8_t)tmp;
+ lineSrc += m_nStride;
+ lineDst += pDst->m_nStride;
+ }
+ }
+ } else {
+ shift1 = s1 - d1;
+ shift2 = 32 - shift1;
+ for (yy = yd0; yy < yd1; yy++) {
+ tmp1 = (JBIG2_GETDWORD(lineSrc) << shift1) |
+ (JBIG2_GETDWORD(lineSrc + 4) >> shift2);
+ tmp2 = JBIG2_GETDWORD(lineDst);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = (tmp2 & ~maskM) | ((tmp1 | tmp2) & maskM);
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = (tmp2 & ~maskM) | ((tmp1 & tmp2) & maskM);
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = (tmp2 & ~maskM) | ((tmp1 ^ tmp2) & maskM);
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = (tmp2 & ~maskM) | ((~(tmp1 ^ tmp2)) & maskM);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = (tmp2 & ~maskM) | (tmp1 & maskM);
+ break;
+ }
+ lineDst[0] = (uint8_t)(tmp >> 24);
+ lineDst[1] = (uint8_t)(tmp >> 16);
+ lineDst[2] = (uint8_t)(tmp >> 8);
+ lineDst[3] = (uint8_t)tmp;
+ lineSrc += m_nStride;
+ lineDst += pDst->m_nStride;
+ }
+ }
+ } else {
+ if (s1 > d1) {
+ shift1 = s1 - d1;
+ shift2 = 32 - shift1;
+ middleDwords = (xd1 >> 5) - ((xd0 + 31) >> 5);
+ for (yy = yd0; yy < yd1; yy++) {
+ sp = lineSrc;
+ dp = lineDst;
+ if (d1 != 0) {
+ tmp1 = (JBIG2_GETDWORD(sp) << shift1) |
+ (JBIG2_GETDWORD(sp + 4) >> shift2);
+ tmp2 = JBIG2_GETDWORD(dp);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = (tmp2 & ~maskL) | ((tmp1 | tmp2) & maskL);
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = (tmp2 & ~maskL) | ((tmp1 & tmp2) & maskL);
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = (tmp2 & ~maskL) | ((tmp1 ^ tmp2) & maskL);
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = (tmp2 & ~maskL) | ((~(tmp1 ^ tmp2)) & maskL);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = (tmp2 & ~maskL) | (tmp1 & maskL);
+ break;
+ }
+ dp[0] = (uint8_t)(tmp >> 24);
+ dp[1] = (uint8_t)(tmp >> 16);
+ dp[2] = (uint8_t)(tmp >> 8);
+ dp[3] = (uint8_t)tmp;
+ sp += 4;
+ dp += 4;
+ }
+ for (xx = 0; xx < middleDwords; xx++) {
+ tmp1 = (JBIG2_GETDWORD(sp) << shift1) |
+ (JBIG2_GETDWORD(sp + 4) >> shift2);
+ tmp2 = JBIG2_GETDWORD(dp);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = tmp1 | tmp2;
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = tmp1 & tmp2;
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = tmp1 ^ tmp2;
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = ~(tmp1 ^ tmp2);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = tmp1;
+ break;
+ }
+ dp[0] = (uint8_t)(tmp >> 24);
+ dp[1] = (uint8_t)(tmp >> 16);
+ dp[2] = (uint8_t)(tmp >> 8);
+ dp[3] = (uint8_t)tmp;
+ sp += 4;
+ dp += 4;
+ }
+ if (d2 != 0) {
+ tmp1 =
+ (JBIG2_GETDWORD(sp) << shift1) |
+ (((sp + 4) < lineSrc + lineLeft ? JBIG2_GETDWORD(sp + 4) : 0) >>
+ shift2);
+ tmp2 = JBIG2_GETDWORD(dp);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = (tmp2 & ~maskR) | ((tmp1 | tmp2) & maskR);
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = (tmp2 & ~maskR) | ((tmp1 & tmp2) & maskR);
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = (tmp2 & ~maskR) | ((tmp1 ^ tmp2) & maskR);
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = (tmp2 & ~maskR) | ((~(tmp1 ^ tmp2)) & maskR);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = (tmp2 & ~maskR) | (tmp1 & maskR);
+ break;
+ }
+ dp[0] = (uint8_t)(tmp >> 24);
+ dp[1] = (uint8_t)(tmp >> 16);
+ dp[2] = (uint8_t)(tmp >> 8);
+ dp[3] = (uint8_t)tmp;
+ }
+ lineSrc += m_nStride;
+ lineDst += pDst->m_nStride;
+ }
+ } else if (s1 == d1) {
+ middleDwords = (xd1 >> 5) - ((xd0 + 31) >> 5);
+ for (yy = yd0; yy < yd1; yy++) {
+ sp = lineSrc;
+ dp = lineDst;
+ if (d1 != 0) {
+ tmp1 = JBIG2_GETDWORD(sp);
+ tmp2 = JBIG2_GETDWORD(dp);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = (tmp2 & ~maskL) | ((tmp1 | tmp2) & maskL);
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = (tmp2 & ~maskL) | ((tmp1 & tmp2) & maskL);
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = (tmp2 & ~maskL) | ((tmp1 ^ tmp2) & maskL);
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = (tmp2 & ~maskL) | ((~(tmp1 ^ tmp2)) & maskL);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = (tmp2 & ~maskL) | (tmp1 & maskL);
+ break;
+ }
+ dp[0] = (uint8_t)(tmp >> 24);
+ dp[1] = (uint8_t)(tmp >> 16);
+ dp[2] = (uint8_t)(tmp >> 8);
+ dp[3] = (uint8_t)tmp;
+ sp += 4;
+ dp += 4;
+ }
+ for (xx = 0; xx < middleDwords; xx++) {
+ tmp1 = JBIG2_GETDWORD(sp);
+ tmp2 = JBIG2_GETDWORD(dp);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = tmp1 | tmp2;
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = tmp1 & tmp2;
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = tmp1 ^ tmp2;
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = ~(tmp1 ^ tmp2);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = tmp1;
+ break;
+ }
+ dp[0] = (uint8_t)(tmp >> 24);
+ dp[1] = (uint8_t)(tmp >> 16);
+ dp[2] = (uint8_t)(tmp >> 8);
+ dp[3] = (uint8_t)tmp;
+ sp += 4;
+ dp += 4;
+ }
+ if (d2 != 0) {
+ tmp1 = JBIG2_GETDWORD(sp);
+ tmp2 = JBIG2_GETDWORD(dp);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = (tmp2 & ~maskR) | ((tmp1 | tmp2) & maskR);
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = (tmp2 & ~maskR) | ((tmp1 & tmp2) & maskR);
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = (tmp2 & ~maskR) | ((tmp1 ^ tmp2) & maskR);
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = (tmp2 & ~maskR) | ((~(tmp1 ^ tmp2)) & maskR);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = (tmp2 & ~maskR) | (tmp1 & maskR);
+ break;
+ }
+ dp[0] = (uint8_t)(tmp >> 24);
+ dp[1] = (uint8_t)(tmp >> 16);
+ dp[2] = (uint8_t)(tmp >> 8);
+ dp[3] = (uint8_t)tmp;
+ }
+ lineSrc += m_nStride;
+ lineDst += pDst->m_nStride;
+ }
+ } else {
+ shift1 = d1 - s1;
+ shift2 = 32 - shift1;
+ middleDwords = (xd1 >> 5) - ((xd0 + 31) >> 5);
+ for (yy = yd0; yy < yd1; yy++) {
+ sp = lineSrc;
+ dp = lineDst;
+ if (d1 != 0) {
+ tmp1 = JBIG2_GETDWORD(sp) >> shift1;
+ tmp2 = JBIG2_GETDWORD(dp);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = (tmp2 & ~maskL) | ((tmp1 | tmp2) & maskL);
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = (tmp2 & ~maskL) | ((tmp1 & tmp2) & maskL);
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = (tmp2 & ~maskL) | ((tmp1 ^ tmp2) & maskL);
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = (tmp2 & ~maskL) | ((~(tmp1 ^ tmp2)) & maskL);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = (tmp2 & ~maskL) | (tmp1 & maskL);
+ break;
+ }
+ dp[0] = (uint8_t)(tmp >> 24);
+ dp[1] = (uint8_t)(tmp >> 16);
+ dp[2] = (uint8_t)(tmp >> 8);
+ dp[3] = (uint8_t)tmp;
+ dp += 4;
+ }
+ for (xx = 0; xx < middleDwords; xx++) {
+ tmp1 = (JBIG2_GETDWORD(sp) << shift2) |
+ ((JBIG2_GETDWORD(sp + 4)) >> shift1);
+ tmp2 = JBIG2_GETDWORD(dp);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = tmp1 | tmp2;
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = tmp1 & tmp2;
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = tmp1 ^ tmp2;
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = ~(tmp1 ^ tmp2);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = tmp1;
+ break;
+ }
+ dp[0] = (uint8_t)(tmp >> 24);
+ dp[1] = (uint8_t)(tmp >> 16);
+ dp[2] = (uint8_t)(tmp >> 8);
+ dp[3] = (uint8_t)tmp;
+ sp += 4;
+ dp += 4;
+ }
+ if (d2 != 0) {
+ tmp1 =
+ (JBIG2_GETDWORD(sp) << shift2) |
+ (((sp + 4) < lineSrc + lineLeft ? JBIG2_GETDWORD(sp + 4) : 0) >>
+ shift1);
+ tmp2 = JBIG2_GETDWORD(dp);
+ switch (op) {
+ case JBIG2_COMPOSE_OR:
+ tmp = (tmp2 & ~maskR) | ((tmp1 | tmp2) & maskR);
+ break;
+ case JBIG2_COMPOSE_AND:
+ tmp = (tmp2 & ~maskR) | ((tmp1 & tmp2) & maskR);
+ break;
+ case JBIG2_COMPOSE_XOR:
+ tmp = (tmp2 & ~maskR) | ((tmp1 ^ tmp2) & maskR);
+ break;
+ case JBIG2_COMPOSE_XNOR:
+ tmp = (tmp2 & ~maskR) | ((~(tmp1 ^ tmp2)) & maskR);
+ break;
+ case JBIG2_COMPOSE_REPLACE:
+ tmp = (tmp2 & ~maskR) | (tmp1 & maskR);
+ break;
+ }
+ dp[0] = (uint8_t)(tmp >> 24);
+ dp[1] = (uint8_t)(tmp >> 16);
+ dp[2] = (uint8_t)(tmp >> 8);
+ dp[3] = (uint8_t)tmp;
+ }
+ lineSrc += m_nStride;
+ lineDst += pDst->m_nStride;
+ }
+ }
+ }
+ return 1;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-07 11:51:22 +0000