| // 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 "../../../include/fxcrt/fx_basic.h" |
| #include "../../../include/fxcrt/fx_coordinates.h" |
| #include "../../../src/fxcrt/fx_safe_types.h" |
| #include "JBig2_Image.h" |
| |
| CJBig2_Image::CJBig2_Image(FX_INT32 w, FX_INT32 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_BYTE *)m_pModule->JBig2_Malloc2(m_nStride, m_nHeight); |
| } else { |
| m_pData = NULL; |
| } |
| m_bNeedFree = TRUE; |
| } |
| CJBig2_Image::CJBig2_Image(FX_INT32 w, FX_INT32 h, FX_INT32 stride, FX_BYTE*pBuf) |
| { |
| m_nWidth = w; |
| m_nHeight = h; |
| m_nStride = stride; |
| m_pData = pBuf; |
| m_bNeedFree = FALSE; |
| } |
| CJBig2_Image::CJBig2_Image(CJBig2_Image &im) |
| { |
| m_pModule = im.m_pModule; |
| m_nWidth = im.m_nWidth; |
| m_nHeight = im.m_nHeight; |
| m_nStride = im.m_nStride; |
| if (im.m_pData) { |
| m_pData = (FX_BYTE*)m_pModule->JBig2_Malloc2(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 && m_pData) { |
| m_pModule->JBig2_Free(m_pData); |
| } |
| } |
| FX_BOOL CJBig2_Image::getPixel(FX_INT32 x, FX_INT32 y) |
| { |
| if (!m_pData) { |
| return 0; |
| } |
| FX_INT32 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); |
| } |
| |
| FX_INT32 CJBig2_Image::setPixel(FX_INT32 x, FX_INT32 y, FX_BOOL v) |
| { |
| if (!m_pData) { |
| return 0; |
| } |
| FX_INT32 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(FX_INT32 hTo, FX_INT32 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, FX_INT32 x, FX_INT32 y, JBig2ComposeOp op) |
| { |
| if (!m_pData) { |
| return FALSE; |
| } |
| return composeTo_opt2(pDst, x, y, op); |
| } |
| FX_BOOL CJBig2_Image::composeTo(CJBig2_Image *pDst, FX_INT32 x, FX_INT32 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::composeTo_unopt(CJBig2_Image *pDst, FX_INT32 x, FX_INT32 y, JBig2ComposeOp op) |
| { |
| FX_INT32 w, h, dx, dy; |
| FX_INT32 i, j; |
| w = m_nWidth; |
| h = m_nHeight; |
| dx = dy = 0; |
| if(x < 0) { |
| dx += -x; |
| w -= -x; |
| x = 0; |
| } |
| if(y < 0) { |
| dy += -y; |
| h -= -y; |
| y = 0; |
| } |
| if(x + w > pDst->m_nWidth) { |
| w = pDst->m_nWidth - x; |
| } |
| if(y + h > pDst->m_nHeight) { |
| h = pDst->m_nHeight - y; |
| } |
| switch(op) { |
| case JBIG2_COMPOSE_OR: |
| for(j = 0; j < h; j++) { |
| for(i = 0; i < w; i++) { |
| pDst->setPixel(x + i, y + j, |
| (getPixel(i + dx, j + dy) | pDst->getPixel(x + i, y + j)) & 1); |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_AND: |
| for(j = 0; j < h; j++) { |
| for(i = 0; i < w; i++) { |
| pDst->setPixel(x + i, y + j, |
| (getPixel(i + dx, j + dy) & pDst->getPixel(x + i, y + j)) & 1); |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_XOR: |
| for(j = 0; j < h; j++) { |
| for(i = 0; i < w; i++) { |
| pDst->setPixel(x + i, y + j, |
| (getPixel(i + dx, j + dy) ^ pDst->getPixel(x + i, y + j)) & 1); |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_XNOR: |
| for(j = 0; j < h; j++) { |
| for(i = 0; i < w; i++) { |
| pDst->setPixel(x + i, y + j, |
| (~(getPixel(i + dx, j + dy) ^ pDst->getPixel(x + i, y + j))) & 1); |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_REPLACE: |
| for(j = 0; j < h; j++) { |
| for(i = 0; i < w; i++) { |
| pDst->setPixel(x + i, y + j, getPixel(i + dx, j + dy)); |
| } |
| } |
| break; |
| } |
| return TRUE; |
| } |
| |
| FX_BOOL CJBig2_Image::composeTo_opt(CJBig2_Image *pDst, FX_INT32 x, FX_INT32 y, JBig2ComposeOp op) |
| { |
| FX_INT32 x0, x1, y0, y1, xx, yy; |
| FX_BYTE *pLineSrc, *pLineDst, *srcPtr, *destPtr; |
| FX_DWORD src0, src1, src, dest, s1, s2, m1, m2, m3; |
| FX_BOOL oneByte; |
| if (!m_pData) { |
| return FALSE; |
| } |
| if (y < 0) { |
| y0 = -y; |
| } else { |
| y0 = 0; |
| } |
| if (y + m_nHeight > pDst->m_nHeight) { |
| y1 = pDst->m_nHeight - y; |
| } else { |
| y1 = m_nHeight; |
| } |
| if (y0 >= y1) { |
| return FALSE; |
| } |
| if (x >= 0) { |
| x0 = x & ~7; |
| } else { |
| x0 = 0; |
| } |
| x1 = x + m_nWidth; |
| if (x1 > pDst->m_nWidth) { |
| x1 = pDst->m_nWidth; |
| } |
| if (x0 >= x1) { |
| return FALSE; |
| } |
| s1 = x & 7; |
| s2 = 8 - s1; |
| m1 = 0xff >> (x1 & 7); |
| m2 = 0xff << (((x1 & 7) == 0) ? 0 : 8 - (x1 & 7)); |
| m3 = (0xff >> s1) & m2; |
| oneByte = x0 == ((x1 - 1) & ~7); |
| pLineDst = pDst->m_pData + y * pDst->m_nStride; |
| pLineSrc = m_pData + y0 * m_nStride; |
| if(oneByte) { |
| if(x >= 0) { |
| switch(op) { |
| case JBIG2_COMPOSE_OR: { |
| for (yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst + (x >> 3); |
| srcPtr = pLineSrc; |
| dest = *destPtr; |
| dest |= (*srcPtr >> s1) & m2; |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_AND: { |
| for (yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst + (x >> 3); |
| srcPtr = pLineSrc; |
| dest = *destPtr; |
| dest &= ((0xff00 | *srcPtr) >> s1) | m1; |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_XOR: { |
| for (yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst + (x >> 3); |
| srcPtr = pLineSrc; |
| dest = *destPtr; |
| dest ^= (*srcPtr >> s1) & m2; |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_XNOR: { |
| for (yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst + (x >> 3); |
| srcPtr = pLineSrc; |
| dest = *destPtr; |
| dest ^= ((*srcPtr ^ 0xff) >> s1) & m2; |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_REPLACE: { |
| for (yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst + (x >> 3); |
| srcPtr = pLineSrc; |
| dest = *destPtr; |
| dest = (dest & ~m3) | ((*srcPtr >> s1) & m3); |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| } |
| } else { |
| switch(op) { |
| case JBIG2_COMPOSE_OR: { |
| for(yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst; |
| srcPtr = pLineSrc + (-x >> 3); |
| dest = *destPtr; |
| dest |= *srcPtr & m2; |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_AND: { |
| for(yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst; |
| srcPtr = pLineSrc + (-x >> 3); |
| dest = *destPtr; |
| dest &= *srcPtr | m1; |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_XOR: { |
| for(yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst; |
| srcPtr = pLineSrc + (-x >> 3); |
| dest = *destPtr; |
| dest ^= *srcPtr & m2; |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_XNOR: { |
| for(yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst; |
| srcPtr = pLineSrc + (-x >> 3); |
| dest = *destPtr; |
| dest ^= (*srcPtr ^ 0xff) & m2; |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_REPLACE: { |
| for(yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst; |
| srcPtr = pLineSrc + (-x >> 3); |
| dest = *destPtr; |
| dest = (*srcPtr & m2) | (dest & m1); |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| } |
| } |
| } else { |
| if(x >= 0) { |
| switch(op) { |
| case JBIG2_COMPOSE_OR: { |
| for(yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst + (x >> 3); |
| srcPtr = pLineSrc; |
| src1 = *srcPtr++; |
| dest = *destPtr; |
| dest |= src1 >> s1; |
| *destPtr++ = (FX_BYTE)dest; |
| xx = x0 + 8; |
| for (; xx < x1 - 8; xx += 8) { |
| dest = *destPtr; |
| src0 = src1; |
| src1 = *srcPtr++; |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest |= src; |
| *destPtr++ = (FX_BYTE)dest; |
| } |
| dest = *destPtr; |
| src0 = src1; |
| if(srcPtr - pLineSrc < m_nStride) { |
| src1 = *srcPtr++; |
| } else { |
| src1 = 0; |
| } |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest |= src & m2; |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_AND: { |
| for(yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst + (x >> 3); |
| srcPtr = pLineSrc; |
| src1 = *srcPtr++; |
| dest = *destPtr; |
| dest &= (0xff00 | src1) >> s1; |
| *destPtr++ = (FX_BYTE)dest; |
| xx = x0 + 8; |
| for (; xx < x1 - 8; xx += 8) { |
| dest = *destPtr; |
| src0 = src1; |
| src1 = *srcPtr++; |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest &= src; |
| *destPtr++ = (FX_BYTE)dest; |
| } |
| dest = *destPtr; |
| src0 = src1; |
| if(srcPtr - pLineSrc < m_nStride) { |
| src1 = *srcPtr++; |
| } else { |
| src1 = 0; |
| } |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest &= src | m1; |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_XOR: { |
| for(yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst + (x >> 3); |
| srcPtr = pLineSrc; |
| src1 = *srcPtr++; |
| dest = *destPtr; |
| dest ^= src1 >> s1; |
| *destPtr++ = (FX_BYTE)dest; |
| xx = x0 + 8; |
| for (; xx < x1 - 8; xx += 8) { |
| dest = *destPtr; |
| src0 = src1; |
| src1 = *srcPtr++; |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest ^= src; |
| *destPtr++ = (FX_BYTE)dest; |
| } |
| dest = *destPtr; |
| src0 = src1; |
| if(srcPtr - pLineSrc < m_nStride) { |
| src1 = *srcPtr++; |
| } else { |
| src1 = 0; |
| } |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest ^= src & m2; |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_XNOR: { |
| for(yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst + (x >> 3); |
| srcPtr = pLineSrc; |
| src1 = *srcPtr++; |
| dest = *destPtr; |
| dest ^= (src1 ^ 0xff) >> s1; |
| *destPtr++ = (FX_BYTE)dest; |
| xx = x0 + 8; |
| for (; xx < x1 - 8; xx += 8) { |
| dest = *destPtr; |
| src0 = src1; |
| src1 = *srcPtr++; |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest ^= src ^ 0xff; |
| *destPtr++ = (FX_BYTE)dest; |
| } |
| dest = *destPtr; |
| src0 = src1; |
| if(srcPtr - pLineSrc < m_nStride) { |
| src1 = *srcPtr++; |
| } else { |
| src1 = 0; |
| } |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest ^= (src ^ 0xff) & m2; |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_REPLACE: { |
| for(yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst + (x >> 3); |
| srcPtr = pLineSrc; |
| src1 = *srcPtr++; |
| dest = *destPtr; |
| dest = (dest & (0xff << s2)) | (src1 >> s1); |
| *destPtr++ = (FX_BYTE)dest; |
| xx = x0 + 8; |
| for (; xx < x1 - 8; xx += 8) { |
| dest = *destPtr; |
| src0 = src1; |
| src1 = *srcPtr++; |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest = src; |
| *destPtr++ = (FX_BYTE)dest; |
| } |
| dest = *destPtr; |
| src0 = src1; |
| if(srcPtr - pLineSrc < m_nStride) { |
| src1 = *srcPtr++; |
| } else { |
| src1 = 0; |
| } |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest = (src & m2) | (dest & m1); |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| } |
| } else { |
| switch(op) { |
| case JBIG2_COMPOSE_OR: { |
| for(yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst; |
| srcPtr = pLineSrc + (-x >> 3); |
| src1 = *srcPtr++; |
| xx = x0; |
| for (; xx < x1 - 8; xx += 8) { |
| dest = *destPtr; |
| src0 = src1; |
| src1 = *srcPtr++; |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest |= src; |
| *destPtr++ = (FX_BYTE)dest; |
| } |
| dest = *destPtr; |
| src0 = src1; |
| if(srcPtr - pLineSrc < m_nStride) { |
| src1 = *srcPtr++; |
| } else { |
| src1 = 0; |
| } |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest |= src & m2; |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_AND: { |
| for(yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst; |
| srcPtr = pLineSrc + (-x >> 3); |
| src1 = *srcPtr++; |
| xx = x0; |
| for (; xx < x1 - 8; xx += 8) { |
| dest = *destPtr; |
| src0 = src1; |
| src1 = *srcPtr++; |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest &= src; |
| *destPtr++ = (FX_BYTE)dest; |
| } |
| dest = *destPtr; |
| src0 = src1; |
| if(srcPtr - pLineSrc < m_nStride) { |
| src1 = *srcPtr++; |
| } else { |
| src1 = 0; |
| } |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest &= src | m1; |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_XOR: { |
| for(yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst; |
| srcPtr = pLineSrc + (-x >> 3); |
| src1 = *srcPtr++; |
| xx = x0; |
| for (; xx < x1 - 8; xx += 8) { |
| dest = *destPtr; |
| src0 = src1; |
| src1 = *srcPtr++; |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest ^= src; |
| *destPtr++ = (FX_BYTE)dest; |
| } |
| dest = *destPtr; |
| src0 = src1; |
| if(srcPtr - pLineSrc < m_nStride) { |
| src1 = *srcPtr++; |
| } else { |
| src1 = 0; |
| } |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest ^= src & m2; |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_XNOR: { |
| for(yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst; |
| srcPtr = pLineSrc + (-x >> 3); |
| src1 = *srcPtr++; |
| xx = x0; |
| for (; xx < x1 - 8; xx += 8) { |
| dest = *destPtr; |
| src0 = src1; |
| src1 = *srcPtr++; |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest ^= src ^ 0xff; |
| *destPtr++ = (FX_BYTE)dest; |
| } |
| dest = *destPtr; |
| src0 = src1; |
| if(srcPtr - pLineSrc < m_nStride) { |
| src1 = *srcPtr++; |
| } else { |
| src1 = 0; |
| } |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest ^= (src ^ 0xff) & m2; |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| case JBIG2_COMPOSE_REPLACE: { |
| for(yy = y0; yy < y1; ++yy) { |
| destPtr = pLineDst; |
| srcPtr = pLineSrc + (-x >> 3); |
| src1 = *srcPtr++; |
| xx = x0; |
| for (; xx < x1 - 8; xx += 8) { |
| dest = *destPtr; |
| src0 = src1; |
| src1 = *srcPtr++; |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest = src; |
| *destPtr++ = (FX_BYTE)dest; |
| } |
| dest = *destPtr; |
| src0 = src1; |
| if(srcPtr - pLineSrc < m_nStride) { |
| src1 = *srcPtr++; |
| } else { |
| src1 = 0; |
| } |
| src = (((src0 << 8) | src1) >> s1) & 0xff; |
| dest = (src & m2) | (dest & m1); |
| *destPtr = (FX_BYTE)dest; |
| pLineDst += pDst->m_nStride; |
| pLineSrc += m_nStride; |
| } |
| } |
| break; |
| } |
| } |
| } |
| return TRUE; |
| } |
| FX_BOOL CJBig2_Image::composeFrom(FX_INT32 x, FX_INT32 y, CJBig2_Image *pSrc, JBig2ComposeOp op) |
| { |
| if (!m_pData) { |
| return FALSE; |
| } |
| return pSrc->composeTo(this, x, y, op); |
| } |
| FX_BOOL CJBig2_Image::composeFrom(FX_INT32 x, FX_INT32 y, CJBig2_Image *pSrc, JBig2ComposeOp op, const FX_RECT* pSrcRect) |
| { |
| if (!m_pData) { |
| return FALSE; |
| } |
| return pSrc->composeTo(this, x, y, op, pSrcRect); |
| } |
| CJBig2_Image *CJBig2_Image::subImage_unopt(FX_INT32 x, FX_INT32 y, FX_INT32 w, FX_INT32 h) |
| { |
| CJBig2_Image *pImage; |
| FX_INT32 i, j; |
| JBIG2_ALLOC(pImage, CJBig2_Image(w, h)); |
| for(j = 0; j < h; j++) { |
| for(i = 0; i < w; i++) { |
| pImage->setPixel(i, j, getPixel(x + i, y + j)); |
| } |
| } |
| return pImage; |
| } |
| #define JBIG2_GETDWORD(buf) ((FX_DWORD)(((buf)[0] << 24) | ((buf)[1] << 16) | ((buf)[2] << 8) | (buf)[3])) |
| CJBig2_Image *CJBig2_Image::subImage(FX_INT32 x, FX_INT32 y, FX_INT32 w, FX_INT32 h) |
| { |
| CJBig2_Image *pImage; |
| FX_INT32 m, n, j; |
| FX_BYTE *pLineSrc, *pLineDst; |
| FX_DWORD wTmp; |
| FX_BYTE *pSrc, *pSrcEnd, *pDst, *pDstEnd; |
| if (w == 0 || h == 0) { |
| return NULL; |
| } |
| JBIG2_ALLOC(pImage, 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] = (FX_BYTE)(wTmp >> 24); |
| pDst[1] = (FX_BYTE)(wTmp >> 16); |
| pDst[2] = (FX_BYTE)(wTmp >> 8); |
| pDst[3] = (FX_BYTE)wTmp; |
| } |
| pLineSrc += m_nStride; |
| pLineDst += pImage->m_nStride; |
| } |
| } |
| return pImage; |
| } |
| void CJBig2_Image::expand(FX_INT32 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_BYTE*)m_pModule->JBig2_Realloc(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, FX_INT32 x, FX_INT32 y, JBig2ComposeOp op) |
| { |
| FX_INT32 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; |
| |
| FX_BYTE *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] = (FX_BYTE)(tmp >> 24); |
| lineDst[1] = (FX_BYTE)(tmp >> 16); |
| lineDst[2] = (FX_BYTE)(tmp >> 8); |
| lineDst[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| lineDst[1] = (FX_BYTE)(tmp >> 16); |
| lineDst[2] = (FX_BYTE)(tmp >> 8); |
| lineDst[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| lineDst[1] = (FX_BYTE)(tmp >> 16); |
| lineDst[2] = (FX_BYTE)(tmp >> 8); |
| lineDst[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| dp[1] = (FX_BYTE)(tmp >> 16); |
| dp[2] = (FX_BYTE)(tmp >> 8); |
| dp[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| dp[1] = (FX_BYTE)(tmp >> 16); |
| dp[2] = (FX_BYTE)(tmp >> 8); |
| dp[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| dp[1] = (FX_BYTE)(tmp >> 16); |
| dp[2] = (FX_BYTE)(tmp >> 8); |
| dp[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| dp[1] = (FX_BYTE)(tmp >> 16); |
| dp[2] = (FX_BYTE)(tmp >> 8); |
| dp[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| dp[1] = (FX_BYTE)(tmp >> 16); |
| dp[2] = (FX_BYTE)(tmp >> 8); |
| dp[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| dp[1] = (FX_BYTE)(tmp >> 16); |
| dp[2] = (FX_BYTE)(tmp >> 8); |
| dp[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| dp[1] = (FX_BYTE)(tmp >> 16); |
| dp[2] = (FX_BYTE)(tmp >> 8); |
| dp[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| dp[1] = (FX_BYTE)(tmp >> 16); |
| dp[2] = (FX_BYTE)(tmp >> 8); |
| dp[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| dp[1] = (FX_BYTE)(tmp >> 16); |
| dp[2] = (FX_BYTE)(tmp >> 8); |
| dp[3] = (FX_BYTE)tmp; |
| } |
| lineSrc += m_nStride; |
| lineDst += pDst->m_nStride; |
| } |
| } |
| } |
| return 1; |
| } |
| FX_BOOL CJBig2_Image::composeTo_opt2(CJBig2_Image *pDst, FX_INT32 x, FX_INT32 y, JBig2ComposeOp op, const FX_RECT* pSrcRect) |
| { |
| FX_INT32 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; |
| FX_BYTE *lineSrc, *lineDst, *sp, *dp; |
| FX_INT32 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] = (FX_BYTE)(tmp >> 24); |
| lineDst[1] = (FX_BYTE)(tmp >> 16); |
| lineDst[2] = (FX_BYTE)(tmp >> 8); |
| lineDst[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| lineDst[1] = (FX_BYTE)(tmp >> 16); |
| lineDst[2] = (FX_BYTE)(tmp >> 8); |
| lineDst[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| lineDst[1] = (FX_BYTE)(tmp >> 16); |
| lineDst[2] = (FX_BYTE)(tmp >> 8); |
| lineDst[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| dp[1] = (FX_BYTE)(tmp >> 16); |
| dp[2] = (FX_BYTE)(tmp >> 8); |
| dp[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| dp[1] = (FX_BYTE)(tmp >> 16); |
| dp[2] = (FX_BYTE)(tmp >> 8); |
| dp[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| dp[1] = (FX_BYTE)(tmp >> 16); |
| dp[2] = (FX_BYTE)(tmp >> 8); |
| dp[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| dp[1] = (FX_BYTE)(tmp >> 16); |
| dp[2] = (FX_BYTE)(tmp >> 8); |
| dp[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| dp[1] = (FX_BYTE)(tmp >> 16); |
| dp[2] = (FX_BYTE)(tmp >> 8); |
| dp[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| dp[1] = (FX_BYTE)(tmp >> 16); |
| dp[2] = (FX_BYTE)(tmp >> 8); |
| dp[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| dp[1] = (FX_BYTE)(tmp >> 16); |
| dp[2] = (FX_BYTE)(tmp >> 8); |
| dp[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| dp[1] = (FX_BYTE)(tmp >> 16); |
| dp[2] = (FX_BYTE)(tmp >> 8); |
| dp[3] = (FX_BYTE)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] = (FX_BYTE)(tmp >> 24); |
| dp[1] = (FX_BYTE)(tmp >> 16); |
| dp[2] = (FX_BYTE)(tmp >> 8); |
| dp[3] = (FX_BYTE)tmp; |
| } |
| lineSrc += m_nStride; |
| lineDst += pDst->m_nStride; |
| } |
| } |
| } |
| return 1; |
| } |
