}
m_pDocument = pDoc;
m_pDict = pStream->GetDict();
+ if (m_pDict == NULL) {
+ return FALSE;
+ }
m_pStream = pStream;
m_Width = m_pDict->GetInteger(FX_BSTRC("Width"));
m_Height = m_pDict->GetInteger(FX_BSTRC("Height"));
if (!LoadColorInfo(m_pStream->GetObjNum() != 0 ? NULL : pFormResources, pPageResources)) {
return FALSE;
}
-
if (m_bpc == 0 || m_nComponents == 0) {
return FALSE;
}
-
FX_SAFE_DWORD src_pitch = m_bpc;
src_pitch *= m_nComponents;
src_pitch *= m_Width;
if (!src_pitch.IsValid()) {
return FALSE;
}
-
m_pStreamAcc = FX_NEW CPDF_StreamAcc;
m_pStreamAcc->LoadAllData(pStream, FALSE, src_pitch.ValueOrDie(), TRUE);
if (m_pStreamAcc->GetSize() == 0 || m_pStreamAcc->GetData() == NULL) {
} else {
m_bpp = 24;
}
-
FX_SAFE_DWORD pitch = m_Width;
pitch *= m_bpp;
pitch += 31;
if (!pitch.IsValid()) {
return FALSE;
}
-
m_pLineBuf = FX_Alloc(FX_BYTE, pitch.ValueOrDie());
if (m_pColorSpace && bStdCS) {
m_pColorSpace->EnableStdConversion(TRUE);
if (!pitch.IsValid()) {
return FALSE;
}
-
m_pMaskedLine = FX_Alloc(FX_BYTE, pitch.ValueOrDie());
}
m_Pitch = pitch.ValueOrDie();
if (!LoadColorInfo(m_pStream->GetObjNum() != 0 ? NULL : pFormResources, pPageResources)) {
return 0;
}
-
if (m_bpc == 0 || m_nComponents == 0) {
return 0;
}
-
FX_SAFE_DWORD src_pitch = m_bpc;
src_pitch *= m_nComponents;
src_pitch *= m_Width;
if (!src_pitch.IsValid()) {
return 0;
}
-
m_pStreamAcc = FX_NEW CPDF_StreamAcc;
m_pStreamAcc->LoadAllData(pStream, FALSE, src_pitch.ValueOrDie(), TRUE);
if (m_pStreamAcc->GetSize() == 0 || m_pStreamAcc->GetData() == NULL) {
return 0;
}
const CFX_ByteString& decoder = m_pStreamAcc->GetImageDecoder();
- if (!decoder.IsEmpty() && decoder == FX_BSTRC("CCITTFaxDecode")) {
- m_bpc = 1;
- }
int ret = CreateDecoder();
if (ret != 1) {
if (!ret) {
}
FX_BOOL CPDF_DIBSource::LoadColorInfo(CPDF_Dictionary* pFormResources, CPDF_Dictionary* pPageResources)
{
+ m_bpc_orig = m_pDict->GetInteger(FX_BSTRC("BitsPerComponent"));
if (m_pDict->GetInteger("ImageMask")) {
m_bImageMask = TRUE;
}
if (m_pColorSpace == NULL) {
return FALSE;
}
- m_bpc = m_pDict->GetInteger(FX_BSTRC("BitsPerComponent"));
m_Family = m_pColorSpace->GetFamily();
m_nComponents = m_pColorSpace->CountComponents();
if (m_Family == PDFCS_ICCBASED && pCSObj->GetType() == PDFOBJ_NAME) {
m_nComponents = 4;
}
}
- m_pCompData = FX_Alloc(DIB_COMP_DATA, m_nComponents);
- if (m_bpc == 0) {
- return TRUE;
+ ValidateDictParam();
+ m_pCompData = GetDecodeAndMaskArray(m_bDefaultDecode, m_bColorKey);
+ if (m_pCompData == NULL) {
+ return FALSE;
+ }
+ return TRUE;
+}
+DIB_COMP_DATA* CPDF_DIBSource::GetDecodeAndMaskArray(FX_BOOL& bDefaultDecode, FX_BOOL& bColorKey)
+{
+ DIB_COMP_DATA* pCompData = FX_Alloc(DIB_COMP_DATA, m_nComponents);
+ if (pCompData == NULL) {
+ return NULL;
}
int max_data = (1 << m_bpc) - 1;
CPDF_Array* pDecode = m_pDict->GetArray(FX_BSTRC("Decode"));
if (pDecode) {
for (FX_DWORD i = 0; i < m_nComponents; i ++) {
- m_pCompData[i].m_DecodeMin = pDecode->GetNumber(i * 2);
+ pCompData[i].m_DecodeMin = pDecode->GetNumber(i * 2);
FX_FLOAT max = pDecode->GetNumber(i * 2 + 1);
- m_pCompData[i].m_DecodeStep = (max - m_pCompData[i].m_DecodeMin) / max_data;
+ pCompData[i].m_DecodeStep = (max - pCompData[i].m_DecodeMin) / max_data;
FX_FLOAT def_value, def_min, def_max;
m_pColorSpace->GetDefaultValue(i, def_value, def_min, def_max);
if (m_Family == PDFCS_INDEXED) {
def_max = (FX_FLOAT)max_data;
}
- if (def_min != m_pCompData[i].m_DecodeMin || def_max != max) {
- m_bDefaultDecode = FALSE;
+ if (def_min != pCompData[i].m_DecodeMin || def_max != max) {
+ bDefaultDecode = FALSE;
}
}
} else {
for (FX_DWORD i = 0; i < m_nComponents; i ++) {
FX_FLOAT def_value;
- m_pColorSpace->GetDefaultValue(i, def_value, m_pCompData[i].m_DecodeMin, m_pCompData[i].m_DecodeStep);
+ m_pColorSpace->GetDefaultValue(i, def_value, pCompData[i].m_DecodeMin, pCompData[i].m_DecodeStep);
if (m_Family == PDFCS_INDEXED) {
- m_pCompData[i].m_DecodeStep = (FX_FLOAT)max_data;
+ pCompData[i].m_DecodeStep = (FX_FLOAT)max_data;
}
- m_pCompData[i].m_DecodeStep = (m_pCompData[i].m_DecodeStep - m_pCompData[i].m_DecodeMin) / max_data;
+ pCompData[i].m_DecodeStep = (pCompData[i].m_DecodeStep - pCompData[i].m_DecodeMin) / max_data;
}
}
if (!m_pDict->KeyExist(FX_BSTRC("SMask"))) {
CPDF_Object* pMask = m_pDict->GetElementValue(FX_BSTRC("Mask"));
if (pMask == NULL) {
- return TRUE;
+ return pCompData;
}
if (pMask->GetType() == PDFOBJ_ARRAY) {
CPDF_Array* pArray = (CPDF_Array*)pMask;
- if (pArray->GetCount() >= m_nComponents * 2)
- for (FX_DWORD i = 0; i < m_nComponents * 2; i ++) {
- if (i % 2) {
- m_pCompData[i / 2].m_ColorKeyMax = pArray->GetInteger(i);
- } else {
- m_pCompData[i / 2].m_ColorKeyMin = pArray->GetInteger(i);
- }
+ if (pArray->GetCount() >= m_nComponents * 2) {
+ for (FX_DWORD i = 0; i < m_nComponents; i++) {
+ int min_num = pArray->GetInteger(i * 2);
+ int max_num = pArray->GetInteger(i * 2 + 1);
+ pCompData[i].m_ColorKeyMin = FX_MAX(min_num, 0);
+ pCompData[i].m_ColorKeyMax = FX_MIN(max_num, max_data);
}
- m_bColorKey = TRUE;
+ }
+ bColorKey = TRUE;
}
}
- return TRUE;
+ return pCompData;
}
ICodec_ScanlineDecoder* FPDFAPI_CreateFaxDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height,
const CPDF_Dictionary* pParams);
if (decoder.IsEmpty()) {
return 1;
}
+ if (m_bpc == 0) {
+ return 0;
+ }
FX_LPCBYTE src_data = m_pStreamAcc->GetData();
FX_DWORD src_size = m_pStreamAcc->GetSize();
const CPDF_Dictionary* pParams = m_pStreamAcc->GetImageParam();
int comps, bpc;
ICodec_JpegModule* pJpegModule = CPDF_ModuleMgr::Get()->GetJpegModule();
if (pJpegModule->LoadInfo(src_data, src_size, m_Width, m_Height, comps, bpc, bTransform)) {
- m_nComponents = comps;
+ if (m_nComponents != comps) {
+ FX_Free(m_pCompData);
+ m_nComponents = comps;
+ m_pCompData = GetDecodeAndMaskArray(m_bDefaultDecode, m_bColorKey);
+ if (m_pCompData == NULL) {
+ return 0;
+ }
+ }
m_bpc = bpc;
m_pDecoder = CPDF_ModuleMgr::Get()->GetJpegModule()->CreateDecoder(src_data, src_size, m_Width, m_Height,
m_nComponents, bTransform);
m_pDecoder = CPDF_ModuleMgr::Get()->GetCodecModule()->GetBasicModule()->CreateRunLengthDecoder(src_data, src_size, m_Width, m_Height, m_nComponents, m_bpc);
}
if (m_pDecoder) {
- int requested_pitch = (m_Width * m_nComponents * m_bpc + 7) / 8;
- int provided_pitch = (m_pDecoder->GetWidth() * m_pDecoder->CountComps() * m_pDecoder->GetBPC() + 7) / 8;
- if (provided_pitch < requested_pitch) {
+ FX_SAFE_DWORD requested_pitch = m_bpc;
+ requested_pitch *= m_nComponents;
+ requested_pitch *= m_Width;
+ requested_pitch += 7;
+ requested_pitch /= 8;
+ if (!requested_pitch.IsValid()) {
+ return 0;
+ }
+ FX_SAFE_DWORD provided_pitch = m_pDecoder->GetBPC();
+ provided_pitch *= m_pDecoder->CountComps();
+ provided_pitch *= m_pDecoder->GetWidth();
+ provided_pitch += 7;
+ provided_pitch /= 8;
+ if (!provided_pitch.IsValid()) {
+ return 0;
+ }
+ if (provided_pitch.ValueOrDie() < requested_pitch.ValueOrDie()) {
return 0;
}
return 1;
}
void CPDF_DIBSource::LoadPalette()
{
+ if (m_bpc == 0) {
+ return;
+ }
if (m_bpc * m_nComponents > 8) {
return;
}
}
}
}
-FX_DWORD CPDF_DIBSource::GetValidBpc() const
+void CPDF_DIBSource::ValidateDictParam()
{
- FX_DWORD bpc = m_bpc;
- CPDF_Object * pFilter = m_pDict ? m_pDict->GetElementValue(FX_BSTRC("Filter")) : NULL;
+ m_bpc = m_bpc_orig;
+ CPDF_Object * pFilter = m_pDict->GetElementValue(FX_BSTRC("Filter"));
if (pFilter) {
if (pFilter->GetType() == PDFOBJ_NAME) {
CFX_ByteString filter = pFilter->GetString();
if (filter == FX_BSTRC("CCITTFaxDecode") || filter == FX_BSTRC("JBIG2Decode")) {
- bpc = 1;
+ m_bpc = 1;
+ m_nComponents = 1;
}
if (filter == FX_BSTRC("RunLengthDecode") || filter == FX_BSTRC("DCTDecode")) {
- bpc = 8;
+ m_bpc = 8;
}
} else if (pFilter->GetType() == PDFOBJ_ARRAY) {
CPDF_Array *pArray = (CPDF_Array *)pFilter;
if (pArray->GetString(pArray->GetCount() - 1) == FX_BSTRC("CCITTFacDecode") ||
pArray->GetString(pArray->GetCount() - 1) == FX_BSTRC("JBIG2Decode")) {
- bpc = 1;
+ m_bpc = 1;
+ m_nComponents = 1;
}
if (pArray->GetString(pArray->GetCount() - 1) == FX_BSTRC("RunLengthDecode") ||
pArray->GetString(pArray->GetCount() - 1) == FX_BSTRC("DCTDecode")) {
- bpc = 8;
+ m_bpc = 8;
}
}
}
- if (bpc != 1 && bpc != 2 && bpc != 4 && bpc != 8 && bpc != 12 && bpc != 16) {
- bpc = 0;
+ if (m_bpc != 1 && m_bpc != 2 && m_bpc != 4 && m_bpc != 8 && m_bpc != 16) {
+ m_bpc = 0;
}
-
- return bpc;
}
#define NORMALCOLOR_MAX(color, max) (color) > (max) ? (max) : (color) < 0 ? 0 : (color);
void CPDF_DIBSource::TranslateScanline24bpp(FX_LPBYTE dest_scan, FX_LPCBYTE src_scan) const
{
- FX_DWORD bpc = GetValidBpc();
- if (bpc == 0) {
+ if (m_bpc == 0) {
return;
}
- int max_data = (1 << bpc) - 1;
+ int max_data = (1 << m_bpc) - 1;
if (m_bDefaultDecode) {
if (m_Family == PDFCS_DEVICERGB || m_Family == PDFCS_CALRGB) {
FX_LPCBYTE src_pos = src_scan;
- switch (bpc) {
+ switch (m_bpc) {
case 16:
for (int col = 0; col < m_Width; col ++) {
*dest_scan++ = src_pos[4];
int src_bit_pos = 0;
int dest_byte_pos = 0;
for (int column = 0; column < m_Width; column ++) {
- int R = _GetBits8(src_scan, src_bit_pos, bpc);
- src_bit_pos += bpc;
- int G = _GetBits8(src_scan, src_bit_pos, bpc);
- src_bit_pos += bpc;
- int B = _GetBits8(src_scan, src_bit_pos, bpc);
- src_bit_pos += bpc;
+ int R = _GetBits8(src_scan, src_bit_pos, m_bpc);
+ src_bit_pos += m_bpc;
+ int G = _GetBits8(src_scan, src_bit_pos, m_bpc);
+ src_bit_pos += m_bpc;
+ int B = _GetBits8(src_scan, src_bit_pos, m_bpc);
+ src_bit_pos += m_bpc;
R = NORMALCOLOR_MAX(R, max_data);
G = NORMALCOLOR_MAX(G, max_data);
B = NORMALCOLOR_MAX(B, max_data);
break;
}
return;
- } else if (bpc == 8) {
+ } else if (m_bpc == 8) {
if (m_nComponents == m_pColorSpace->CountComponents())
m_pColorSpace->TranslateImageLine(dest_scan, src_scan, m_Width, m_Width, m_Height,
m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && m_Family == PDFCS_DEVICECMYK);
CFX_FixedBufGrow<FX_FLOAT, 16> color_values1(m_nComponents);
FX_FLOAT* color_values = color_values1;
FX_FLOAT R = 0.0f, G = 0.0f, B = 0.0f;
- if (bpc == 8) {
+ if (m_bpc == 8) {
int src_byte_pos = 0;
int dest_byte_pos = 0;
for (int column = 0; column < m_Width; column ++) {
} else {
int src_bit_pos = 0;
int dest_byte_pos = 0;
- FX_DWORD bpc = GetValidBpc();
for (int column = 0; column < m_Width; column ++) {
for (FX_DWORD color = 0; color < m_nComponents; color ++) {
- int data = _GetBits8(src_scan, src_bit_pos, bpc);
+ int data = _GetBits8(src_scan, src_bit_pos, m_bpc);
color_values[color] = m_pCompData[color].m_DecodeMin +
m_pCompData[color].m_DecodeStep * data;
- src_bit_pos += bpc;
+ src_bit_pos += m_bpc;
}
if (m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && m_Family == PDFCS_DEVICECMYK) {
FX_FLOAT k = 1.0f - color_values[3];
}
FX_LPCBYTE CPDF_DIBSource::GetScanline(int line) const
{
- FX_DWORD src_pitch = (m_Width * m_bpc * m_nComponents + 7) / 8;
+ if (m_bpc == 0) {
+ return NULL;
+ }
+ FX_SAFE_DWORD src_pitch = m_Width;
+ src_pitch *= m_bpc;
+ src_pitch *= m_nComponents;
+ src_pitch += 7;
+ src_pitch /= 8;
+ if (!src_pitch.IsValid())
+ return NULL;
+ FX_DWORD src_pitch_value = src_pitch.ValueOrDie();
FX_LPCBYTE pSrcLine = NULL;
if (m_pCachedBitmap) {
if (line >= m_pCachedBitmap->GetHeight()) {
} else if (m_pDecoder) {
pSrcLine = m_pDecoder->GetScanline(line);
} else {
- if (m_pStreamAcc->GetSize() >= (line + 1) * src_pitch) {
- pSrcLine = m_pStreamAcc->GetData() + line * src_pitch;
+ if (m_pStreamAcc->GetSize() >= (line + 1) * src_pitch_value) {
+ pSrcLine = m_pStreamAcc->GetData() + line * src_pitch_value;
}
}
if (pSrcLine == NULL) {
}
if (m_bpc * m_nComponents == 1) {
if (m_bImageMask && m_bDefaultDecode) {
- for (FX_DWORD i = 0; i < src_pitch; i ++) {
+ for (FX_DWORD i = 0; i < src_pitch_value; i++) {
m_pLineBuf[i] = ~pSrcLine[i];
}
} else if (m_bColorKey) {
}
return m_pMaskedLine;
} else {
- FXSYS_memcpy32(m_pLineBuf, pSrcLine, src_pitch);
+ FXSYS_memcpy32(m_pLineBuf, pSrcLine, src_pitch_value);
}
return m_pLineBuf;
}
if (m_bpc * m_nComponents <= 8) {
if (m_bpc == 8) {
- FXSYS_memcpy32(m_pLineBuf, pSrcLine, src_pitch);
+ FXSYS_memcpy32(m_pLineBuf, pSrcLine, src_pitch_value);
} else {
int src_bit_pos = 0;
for (int col = 0; col < m_Width; col ++) {
FX_LPBYTE alpha_channel = m_pMaskedLine + 3;
for (int col = 0; col < m_Width; col ++) {
FX_LPCBYTE pPixel = pSrcLine + col * 3;
- alpha_channel[col * 4] = (pPixel[0] < m_pCompData[0].m_ColorKeyMin ||
- pPixel[0] > m_pCompData[0].m_ColorKeyMax ||
+ alpha_channel[col * 4] = (pPixel[0] < m_pCompData[0].m_ColorKeyMin || pPixel[0] > m_pCompData[0].m_ColorKeyMax ||
pPixel[1] < m_pCompData[1].m_ColorKeyMin || pPixel[1] > m_pCompData[1].m_ColorKeyMax ||
pPixel[2] < m_pCompData[2].m_ColorKeyMin || pPixel[2] > m_pCompData[2].m_ColorKeyMax) ? 0xff : 0;
}
return;
}
- FX_DWORD bpc = GetValidBpc();
FX_DWORD src_width = m_Width;
FX_SAFE_DWORD pitch = src_width;
- pitch *= bpc;
+ pitch *= m_bpc;
pitch *= m_nComponents;
pitch += 7;
pitch /= 8;
pSrcLine = m_pStreamAcc->GetData() + line * src_pitch;
}
}
- int orig_Bpp = bpc * m_nComponents / 8;
+ int orig_Bpp = m_bpc * m_nComponents / 8;
int dest_Bpp = dest_bpp / 8;
if (pSrcLine == NULL) {
FXSYS_memset32(dest_scan, 0xff, dest_Bpp * clip_width);
}
CFX_FixedBufGrow<FX_BYTE, 128> temp(orig_Bpp);
- if (bpc * m_nComponents == 1) {
+ if (m_bpc * m_nComponents == 1) {
FX_DWORD set_argb = (FX_DWORD) - 1, reset_argb = 0;
if (m_bImageMask) {
if (m_bDefaultDecode) {
}
}
return;
- } else if (bpc * m_nComponents <= 8) {
- if (bpc < 8) {
+ } else if (m_bpc * m_nComponents <= 8) {
+ if (m_bpc < 8) {
int src_bit_pos = 0;
for (FX_DWORD col = 0; col < src_width; col ++) {
int color_index = 0;
for (FX_DWORD color = 0; color < m_nComponents; color ++) {
- int data = _GetBits8(pSrcLine, src_bit_pos, bpc);
- color_index |= data << (color * bpc);
- src_bit_pos += bpc;
+ int data = _GetBits8(pSrcLine, src_bit_pos, m_bpc);
+ color_index |= data << (color * m_bpc);
+ src_bit_pos += m_bpc;
}
m_pLineBuf[col] = color_index;
}
} else {
int last_src_x = -1;
FX_ARGB last_argb;
- FX_FLOAT orig_Not8Bpp = (FX_FLOAT)bpc * (FX_FLOAT)m_nComponents / 8.0f;
- FX_FLOAT unit_To8Bpc = 255.0f / ((1 << bpc) - 1);
+ FX_FLOAT orig_Not8Bpp = (FX_FLOAT)m_bpc * (FX_FLOAT)m_nComponents / 8.0f;
+ FX_FLOAT unit_To8Bpc = 255.0f / ((1 << m_bpc) - 1);
for (int i = 0; i < clip_width; i ++) {
int dest_x = clip_left + i;
FX_DWORD src_x = (bFlipX ? (dest_width - dest_x - 1) : dest_x) * (FX_INT64)src_width / dest_width;
src_x %= src_width;
FX_LPCBYTE pSrcPixel = NULL;
- if (bpc % 8 == 0) {
+ if (m_bpc % 8 == 0) {
pSrcPixel = pSrcLine + src_x * orig_Bpp;
} else {
pSrcPixel = pSrcLine + (int)(src_x * orig_Not8Bpp);
if (m_pColorSpace) {
FX_BYTE color[4];
if (!m_bDefaultDecode) {
- for (int i = 0; i < orig_Bpp; i ++) {
+ for (int i = 0; i < m_nComponents; i ++) {
int color_value = (int)((m_pCompData[i].m_DecodeMin + m_pCompData[i].m_DecodeStep * (FX_FLOAT)pSrcPixel[i]) * 255.0f + 0.5f);
temp[i] = color_value > 255 ? 255 : (color_value < 0 ? 0 : color_value);
}
m_pColorSpace->TranslateImageLine(color, temp, 1, 0, 0, m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && m_Family == PDFCS_DEVICECMYK);
} else {
- if (bpc < 8) {
+ if (m_bpc < 8) {
int src_bit_pos = 0;
if (src_x % 2) {
src_bit_pos = 4;
}
for (FX_DWORD i = 0; i < m_nComponents; i ++) {
- temp[i] = (FX_BYTE)(_GetBits8(pSrcPixel, src_bit_pos, bpc) * unit_To8Bpc);
- src_bit_pos += bpc;
+ temp[i] = (FX_BYTE)(_GetBits8(pSrcPixel, src_bit_pos, m_bpc) * unit_To8Bpc);
+ src_bit_pos += m_bpc;
}
m_pColorSpace->TranslateImageLine(color, temp, 1, 0, 0, m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && m_Family == PDFCS_DEVICECMYK);
} else {
}
if (m_bColorKey) {
int alpha = 0xff;
- if (m_nComponents == 3 && bpc == 8) {
+ if (m_nComponents == 3 && m_bpc == 8) {
alpha = (pSrcPixel[0] < m_pCompData[0].m_ColorKeyMin ||
pSrcPixel[0] > m_pCompData[0].m_ColorKeyMax ||
pSrcPixel[1] < m_pCompData[1].m_ColorKeyMin ||
projects / platform / framework / web / crosswalk.git / blobdiff