1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
7 #include "../../../include/fxge/fx_ge.h"
8 #include "../../../include/fxcodec/fx_codec.h"
9 #include "../../../include/fpdfapi/fpdf_module.h"
10 #include "../../../include/fpdfapi/fpdf_render.h"
11 #include "../../../include/fpdfapi/fpdf_pageobj.h"
12 #include "../fpdf_page/pageint.h"
13 #include "render_int.h"
14 #include "../../../../third_party/numerics/safe_math.h"
16 static unsigned int _GetBits8(FX_LPCBYTE pData, int bitpos, int nbits)
18 unsigned int byte = pData[bitpos / 8];
21 } else if (nbits == 4) {
22 return (bitpos % 8) ? (byte & 0x0f) : (byte >> 4);
23 } else if (nbits == 2) {
24 return (byte >> (6 - bitpos % 8)) & 0x03;
25 } else if (nbits == 1) {
26 return (byte >> (7 - bitpos % 8)) & 0x01;
27 } else if (nbits == 16) {
28 return byte * 256 + pData[bitpos / 8 + 1];
32 CFX_DIBSource* CPDF_Image::LoadDIBSource(CFX_DIBSource** ppMask, FX_DWORD* pMatteColor, FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask) const
34 CPDF_DIBSource* pSource = FX_NEW CPDF_DIBSource;
35 if (pSource->Load(m_pDocument, m_pStream, (CPDF_DIBSource**)ppMask, pMatteColor, NULL, NULL, bStdCS, GroupFamily, bLoadMask)) {
41 CFX_DIBSource* CPDF_Image::DetachBitmap()
43 CFX_DIBSource* pBitmap = m_pDIBSource;
47 CFX_DIBSource* CPDF_Image::DetachMask()
49 CFX_DIBSource* pBitmap = m_pMask;
53 FX_BOOL CPDF_Image::StartLoadDIBSource(CPDF_Dictionary* pFormResource, CPDF_Dictionary* pPageResource, FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask)
55 m_pDIBSource = FX_NEW CPDF_DIBSource;
56 int ret = ((CPDF_DIBSource*)m_pDIBSource)->StartLoadDIBSource(m_pDocument, m_pStream, TRUE, pFormResource, pPageResource, bStdCS, GroupFamily, bLoadMask);
65 m_pMask = ((CPDF_DIBSource*)m_pDIBSource)->DetachMask();
66 m_MatteColor = ((CPDF_DIBSource*)m_pDIBSource)->m_MatteColor;
69 FX_BOOL CPDF_Image::Continue(IFX_Pause* pPause)
71 int ret = ((CPDF_DIBSource*)m_pDIBSource)->ContinueLoadDIBSource(pPause);
80 m_pMask = ((CPDF_DIBSource*)m_pDIBSource)->DetachMask();
81 m_MatteColor = ((CPDF_DIBSource*)m_pDIBSource)->m_MatteColor;
84 CPDF_DIBSource::CPDF_DIBSource()
90 m_Width = m_Height = 0;
92 m_bDefaultDecode = TRUE;
97 m_pMaskedLine = m_pLineBuf = NULL;
98 m_pCachedBitmap = NULL;
106 m_pJbig2Context = NULL;
107 m_pGlobalStream = NULL;
109 m_pMaskStream = NULL;
113 CPDF_DIBSource::~CPDF_DIBSource()
119 FX_Free(m_pMaskedLine);
124 if (m_pCachedBitmap) {
125 delete m_pCachedBitmap;
131 FX_Free(m_pCompData);
133 CPDF_ColorSpace* pCS = m_pColorSpace;
134 if (pCS && m_pDocument) {
135 m_pDocument->GetPageData()->ReleaseColorSpace(pCS->GetArray());
137 if (m_pJbig2Context) {
138 ICodec_Jbig2Module* pJbig2Moudle = CPDF_ModuleMgr::Get()->GetJbig2Module();
139 pJbig2Moudle->DestroyJbig2Context(m_pJbig2Context);
140 m_pJbig2Context = NULL;
142 if (m_pGlobalStream) {
143 delete m_pGlobalStream;
145 m_pGlobalStream = NULL;
147 CFX_DIBitmap* CPDF_DIBSource::GetBitmap() const
149 if (m_pCachedBitmap) {
150 return m_pCachedBitmap;
154 void CPDF_DIBSource::ReleaseBitmap(CFX_DIBitmap* pBitmap) const
156 if (pBitmap && pBitmap != m_pCachedBitmap) {
160 FX_BOOL CPDF_DIBSource::Load(CPDF_Document* pDoc, const CPDF_Stream* pStream, CPDF_DIBSource** ppMask,
161 FX_DWORD* pMatteColor, CPDF_Dictionary* pFormResources, CPDF_Dictionary* pPageResources, FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask)
163 if (pStream == NULL) {
167 m_pDict = pStream->GetDict();
168 if (m_pDict == NULL) {
172 m_Width = m_pDict->GetInteger(FX_BSTRC("Width"));
173 m_Height = m_pDict->GetInteger(FX_BSTRC("Height"));
174 if (m_Width <= 0 || m_Height <= 0 || m_Width > 0x01ffff || m_Height > 0x01ffff) {
177 m_GroupFamily = GroupFamily;
178 m_bLoadMask = bLoadMask;
179 if (!LoadColorInfo(m_pStream->GetObjNum() != 0 ? NULL : pFormResources, pPageResources)) {
182 if (m_bpc == 0 || m_nComponents == 0) {
185 FX_SAFE_DWORD src_pitch = m_bpc;
186 src_pitch *= m_nComponents;
187 src_pitch *= m_Width;
190 src_pitch *= m_Height;
191 if (!src_pitch.IsValid()) {
194 m_pStreamAcc = FX_NEW CPDF_StreamAcc;
195 m_pStreamAcc->LoadAllData(pStream, FALSE, src_pitch.ValueOrDie(), TRUE);
196 if (m_pStreamAcc->GetSize() == 0 || m_pStreamAcc->GetData() == NULL) {
199 const CFX_ByteString& decoder = m_pStreamAcc->GetImageDecoder();
200 if (!decoder.IsEmpty() && decoder == FX_BSTRC("CCITTFaxDecode")) {
203 if (!CreateDecoder()) {
211 } else if (m_bpc * m_nComponents == 1) {
213 } else if (m_bpc * m_nComponents <= 8) {
218 FX_SAFE_DWORD pitch = m_Width;
222 if (!pitch.IsValid()) {
225 m_pLineBuf = FX_Alloc(FX_BYTE, pitch.ValueOrDie());
226 if (m_pColorSpace && bStdCS) {
227 m_pColorSpace->EnableStdConversion(TRUE);
237 if (!pitch.IsValid()) {
240 m_pMaskedLine = FX_Alloc(FX_BYTE, pitch.ValueOrDie());
242 m_Pitch = pitch.ValueOrDie();
244 *ppMask = LoadMask(*pMatteColor);
246 if (m_pColorSpace && bStdCS) {
247 m_pColorSpace->EnableStdConversion(FALSE);
251 int CPDF_DIBSource::ContinueToLoadMask()
258 } else if (m_bpc * m_nComponents == 1) {
260 } else if (m_bpc * m_nComponents <= 8) {
265 if (!m_bpc || !m_nComponents) {
268 FX_SAFE_DWORD pitch = m_Width;
272 if (!pitch.IsValid()) {
275 m_pLineBuf = FX_Alloc(FX_BYTE, pitch.ValueOrDie());
276 if (m_pColorSpace && m_bStdCS) {
277 m_pColorSpace->EnableStdConversion(TRUE);
287 if (!pitch.IsValid()) {
290 m_pMaskedLine = FX_Alloc(FX_BYTE, pitch.ValueOrDie());
292 m_Pitch = pitch.ValueOrDie();
295 int CPDF_DIBSource::StartLoadDIBSource(CPDF_Document* pDoc, const CPDF_Stream* pStream, FX_BOOL bHasMask,
296 CPDF_Dictionary* pFormResources, CPDF_Dictionary* pPageResources,
297 FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask)
299 if (pStream == NULL) {
303 m_pDict = pStream->GetDict();
306 m_bHasMask = bHasMask;
307 m_Width = m_pDict->GetInteger(FX_BSTRC("Width"));
308 m_Height = m_pDict->GetInteger(FX_BSTRC("Height"));
309 if (m_Width <= 0 || m_Height <= 0 || m_Width > 0x01ffff || m_Height > 0x01ffff) {
312 m_GroupFamily = GroupFamily;
313 m_bLoadMask = bLoadMask;
314 if (!LoadColorInfo(m_pStream->GetObjNum() != 0 ? NULL : pFormResources, pPageResources)) {
317 if (m_bpc == 0 || m_nComponents == 0) {
320 FX_SAFE_DWORD src_pitch = m_bpc;
321 src_pitch *= m_nComponents;
322 src_pitch *= m_Width;
325 src_pitch *= m_Height;
326 if (!src_pitch.IsValid()) {
329 m_pStreamAcc = FX_NEW CPDF_StreamAcc;
330 m_pStreamAcc->LoadAllData(pStream, FALSE, src_pitch.ValueOrDie(), TRUE);
331 if (m_pStreamAcc->GetSize() == 0 || m_pStreamAcc->GetData() == NULL) {
334 const CFX_ByteString& decoder = m_pStreamAcc->GetImageDecoder();
335 int ret = CreateDecoder();
340 if (!ContinueToLoadMask()) {
348 if (!ContinueToLoadMask()) {
352 ret = StratLoadMask();
357 if (m_pColorSpace && m_bStdCS) {
358 m_pColorSpace->EnableStdConversion(FALSE);
362 int CPDF_DIBSource::ContinueLoadDIBSource(IFX_Pause* pPause)
366 const CFX_ByteString& decoder = m_pStreamAcc->GetImageDecoder();
367 if (decoder == FX_BSTRC("JPXDecode")) {
370 ICodec_Jbig2Module* pJbig2Moudle = CPDF_ModuleMgr::Get()->GetJbig2Module();
371 if (m_pJbig2Context == NULL) {
372 m_pJbig2Context = pJbig2Moudle->CreateJbig2Context();
373 if (m_pStreamAcc->GetImageParam()) {
374 CPDF_Stream* pGlobals = m_pStreamAcc->GetImageParam()->GetStream(FX_BSTRC("JBIG2Globals"));
376 m_pGlobalStream = FX_NEW CPDF_StreamAcc;
377 m_pGlobalStream->LoadAllData(pGlobals, FALSE);
380 ret = pJbig2Moudle->StartDecode(m_pJbig2Context, m_Width, m_Height, m_pStreamAcc->GetData(), m_pStreamAcc->GetSize(),
381 m_pGlobalStream ? m_pGlobalStream->GetData() : NULL, m_pGlobalStream ? m_pGlobalStream->GetSize() : 0, m_pCachedBitmap->GetBuffer(),
382 m_pCachedBitmap->GetPitch(), pPause);
384 delete m_pCachedBitmap;
385 m_pCachedBitmap = NULL;
386 if (m_pGlobalStream) {
387 delete m_pGlobalStream;
389 m_pGlobalStream = NULL;
390 pJbig2Moudle->DestroyJbig2Context(m_pJbig2Context);
391 m_pJbig2Context = NULL;
394 if (ret == FXCODEC_STATUS_DECODE_TOBECONTINUE) {
399 ret1 = ContinueLoadMaskDIB(pPause);
405 if (m_pColorSpace && m_bStdCS) {
406 m_pColorSpace->EnableStdConversion(FALSE);
410 FXCODEC_STATUS ret = pJbig2Moudle->ContinueDecode(m_pJbig2Context, pPause);
412 delete m_pCachedBitmap;
413 m_pCachedBitmap = NULL;
414 if (m_pGlobalStream) {
415 delete m_pGlobalStream;
417 m_pGlobalStream = NULL;
418 pJbig2Moudle->DestroyJbig2Context(m_pJbig2Context);
419 m_pJbig2Context = NULL;
422 if (ret == FXCODEC_STATUS_DECODE_TOBECONTINUE) {
427 ret1 = ContinueLoadMaskDIB(pPause);
433 if (m_pColorSpace && m_bStdCS) {
434 m_pColorSpace->EnableStdConversion(FALSE);
437 } else if (m_Status == 2) {
438 return ContinueLoadMaskDIB(pPause);
442 FX_BOOL CPDF_DIBSource::LoadColorInfo(CPDF_Dictionary* pFormResources, CPDF_Dictionary* pPageResources)
444 m_bpc_orig = m_pDict->GetInteger(FX_BSTRC("BitsPerComponent"));
445 if (m_pDict->GetInteger("ImageMask")) {
448 if (m_bImageMask || !m_pDict->KeyExist(FX_BSTRC("ColorSpace"))) {
450 CPDF_Object* pFilter = m_pDict->GetElementValue(FX_BSTRC("Filter"));
452 CFX_ByteString filter;
453 if (pFilter->GetType() == PDFOBJ_NAME) {
454 filter = pFilter->GetString();
455 if (filter == FX_BSTRC("JPXDecode")) {
458 } else if (pFilter->GetType() == PDFOBJ_ARRAY) {
459 CPDF_Array* pArray = (CPDF_Array*)pFilter;
460 if (pArray->GetString(pArray->GetCount() - 1) == FX_BSTRC("JPXDecode")) {
467 m_bpc = m_nComponents = 1;
468 CPDF_Array* pDecode = m_pDict->GetArray(FX_BSTRC("Decode"));
469 m_bDefaultDecode = pDecode == NULL || pDecode->GetInteger(0) == 0;
472 CPDF_Object* pCSObj = m_pDict->GetElementValue(FX_BSTRC("ColorSpace"));
473 if (pCSObj == NULL) {
476 CPDF_DocPageData* pDocPageData = m_pDocument->GetPageData();
477 if (pFormResources) {
478 m_pColorSpace = pDocPageData->GetColorSpace(pCSObj, pFormResources);
480 if (m_pColorSpace == NULL) {
481 m_pColorSpace = pDocPageData->GetColorSpace(pCSObj, pPageResources);
483 if (m_pColorSpace == NULL) {
486 m_Family = m_pColorSpace->GetFamily();
487 m_nComponents = m_pColorSpace->CountComponents();
488 if (m_Family == PDFCS_ICCBASED && pCSObj->GetType() == PDFOBJ_NAME) {
489 CFX_ByteString cs = pCSObj->GetString();
490 if (cs == FX_BSTRC("DeviceGray")) {
492 } else if (cs == FX_BSTRC("DeviceRGB")) {
494 } else if (cs == FX_BSTRC("DeviceCMYK")) {
499 m_pCompData = GetDecodeAndMaskArray(m_bDefaultDecode, m_bColorKey);
500 if (m_pCompData == NULL) {
505 DIB_COMP_DATA* CPDF_DIBSource::GetDecodeAndMaskArray(FX_BOOL& bDefaultDecode, FX_BOOL& bColorKey)
507 DIB_COMP_DATA* pCompData = FX_Alloc(DIB_COMP_DATA, m_nComponents);
508 if (pCompData == NULL) {
511 int max_data = (1 << m_bpc) - 1;
512 CPDF_Array* pDecode = m_pDict->GetArray(FX_BSTRC("Decode"));
514 for (FX_DWORD i = 0; i < m_nComponents; i ++) {
515 pCompData[i].m_DecodeMin = pDecode->GetNumber(i * 2);
516 FX_FLOAT max = pDecode->GetNumber(i * 2 + 1);
517 pCompData[i].m_DecodeStep = (max - pCompData[i].m_DecodeMin) / max_data;
518 FX_FLOAT def_value, def_min, def_max;
519 m_pColorSpace->GetDefaultValue(i, def_value, def_min, def_max);
520 if (m_Family == PDFCS_INDEXED) {
521 def_max = (FX_FLOAT)max_data;
523 if (def_min != pCompData[i].m_DecodeMin || def_max != max) {
524 bDefaultDecode = FALSE;
528 for (FX_DWORD i = 0; i < m_nComponents; i ++) {
530 m_pColorSpace->GetDefaultValue(i, def_value, pCompData[i].m_DecodeMin, pCompData[i].m_DecodeStep);
531 if (m_Family == PDFCS_INDEXED) {
532 pCompData[i].m_DecodeStep = (FX_FLOAT)max_data;
534 pCompData[i].m_DecodeStep = (pCompData[i].m_DecodeStep - pCompData[i].m_DecodeMin) / max_data;
537 if (!m_pDict->KeyExist(FX_BSTRC("SMask"))) {
538 CPDF_Object* pMask = m_pDict->GetElementValue(FX_BSTRC("Mask"));
542 if (pMask->GetType() == PDFOBJ_ARRAY) {
543 CPDF_Array* pArray = (CPDF_Array*)pMask;
544 if (pArray->GetCount() >= m_nComponents * 2) {
545 for (FX_DWORD i = 0; i < m_nComponents; i++) {
546 int min_num = pArray->GetInteger(i * 2);
547 int max_num = pArray->GetInteger(i * 2 + 1);
548 pCompData[i].m_ColorKeyMin = FX_MAX(min_num, 0);
549 pCompData[i].m_ColorKeyMax = FX_MIN(max_num, max_data);
557 ICodec_ScanlineDecoder* FPDFAPI_CreateFaxDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height,
558 const CPDF_Dictionary* pParams);
559 ICodec_ScanlineDecoder* FPDFAPI_CreateFlateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_size, int width, int height,
560 int nComps, int bpc, const CPDF_Dictionary* pParams);
561 int CPDF_DIBSource::CreateDecoder()
563 const CFX_ByteString& decoder = m_pStreamAcc->GetImageDecoder();
564 if (decoder.IsEmpty()) {
570 FX_LPCBYTE src_data = m_pStreamAcc->GetData();
571 FX_DWORD src_size = m_pStreamAcc->GetSize();
572 const CPDF_Dictionary* pParams = m_pStreamAcc->GetImageParam();
573 if (decoder == FX_BSTRC("CCITTFaxDecode")) {
574 m_pDecoder = FPDFAPI_CreateFaxDecoder(src_data, src_size, m_Width, m_Height, pParams);
575 } else if (decoder == FX_BSTRC("DCTDecode")) {
576 m_pDecoder = CPDF_ModuleMgr::Get()->GetJpegModule()->CreateDecoder(src_data, src_size, m_Width, m_Height,
577 m_nComponents, pParams ? pParams->GetInteger(FX_BSTR("ColorTransform"), 1) : 1);
578 if (NULL == m_pDecoder) {
579 FX_BOOL bTransform = FALSE;
581 ICodec_JpegModule* pJpegModule = CPDF_ModuleMgr::Get()->GetJpegModule();
582 if (pJpegModule->LoadInfo(src_data, src_size, m_Width, m_Height, comps, bpc, bTransform)) {
583 if (m_nComponents != comps) {
584 FX_Free(m_pCompData);
585 m_nComponents = comps;
586 m_pCompData = GetDecodeAndMaskArray(m_bDefaultDecode, m_bColorKey);
587 if (m_pCompData == NULL) {
592 m_pDecoder = CPDF_ModuleMgr::Get()->GetJpegModule()->CreateDecoder(src_data, src_size, m_Width, m_Height,
593 m_nComponents, bTransform);
596 } else if (decoder == FX_BSTRC("FlateDecode")) {
597 m_pDecoder = FPDFAPI_CreateFlateDecoder(src_data, src_size, m_Width, m_Height, m_nComponents, m_bpc, pParams);
598 } else if (decoder == FX_BSTRC("JPXDecode")) {
600 return m_pCachedBitmap != NULL ? 1 : 0;
601 } else if (decoder == FX_BSTRC("JBIG2Decode")) {
602 m_pCachedBitmap = FX_NEW CFX_DIBitmap;
603 if (!m_pCachedBitmap->Create(m_Width, m_Height, m_bImageMask ? FXDIB_1bppMask : FXDIB_1bppRgb)) {
604 delete m_pCachedBitmap;
605 m_pCachedBitmap = NULL;
610 } else if (decoder == FX_BSTRC("RunLengthDecode")) {
611 m_pDecoder = CPDF_ModuleMgr::Get()->GetCodecModule()->GetBasicModule()->CreateRunLengthDecoder(src_data, src_size, m_Width, m_Height, m_nComponents, m_bpc);
614 FX_SAFE_DWORD requested_pitch = m_bpc;
615 requested_pitch *= m_nComponents;
616 requested_pitch *= m_Width;
617 requested_pitch += 7;
618 requested_pitch /= 8;
619 if (!requested_pitch.IsValid()) {
622 FX_SAFE_DWORD provided_pitch = m_pDecoder->GetBPC();
623 provided_pitch *= m_pDecoder->CountComps();
624 provided_pitch *= m_pDecoder->GetWidth();
627 if (!provided_pitch.IsValid()) {
630 if (provided_pitch.ValueOrDie() < requested_pitch.ValueOrDie()) {
637 void CPDF_DIBSource::LoadJpxBitmap()
639 ICodec_JpxModule* pJpxModule = CPDF_ModuleMgr::Get()->GetJpxModule();
640 if (pJpxModule == NULL) {
643 FX_LPVOID ctx = pJpxModule->CreateDecoder(m_pStreamAcc->GetData(), m_pStreamAcc->GetSize(), m_pColorSpace != NULL);
647 FX_DWORD width = 0, height = 0, codestream_nComps = 0, image_nComps = 0;
648 pJpxModule->GetImageInfo(ctx, width, height, codestream_nComps, image_nComps);
649 if ((int)width < m_Width || (int)height < m_Height) {
650 pJpxModule->DestroyDecoder(ctx);
654 FX_BOOL bTranslateColor, bSwapRGB = FALSE;
656 if (codestream_nComps != (FX_DWORD)m_pColorSpace->CountComponents()) {
659 output_nComps = codestream_nComps;
660 bTranslateColor = FALSE;
661 if (m_pColorSpace == CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB)) {
663 m_pColorSpace = NULL;
666 bTranslateColor = TRUE;
668 output_nComps = image_nComps;
670 output_nComps = codestream_nComps;
672 if (output_nComps == 3) {
674 } else if (output_nComps == 4) {
675 m_pColorSpace = CPDF_ColorSpace::GetStockCS(PDFCS_DEVICECMYK);
676 bTranslateColor = FALSE;
678 m_nComponents = output_nComps;
681 if (output_nComps == 1) {
682 format = FXDIB_8bppRgb;
683 } else if (output_nComps <= 3) {
685 } else if (output_nComps == 4) {
686 format = FXDIB_Rgb32;
688 width = (width * output_nComps + 2) / 3;
691 m_pCachedBitmap = FX_NEW CFX_DIBitmap;
692 if (!m_pCachedBitmap->Create(width, height, format)) {
693 delete m_pCachedBitmap;
694 m_pCachedBitmap = NULL;
697 m_pCachedBitmap->Clear(0xFFFFFFFF);
698 FX_LPBYTE output_offsets = FX_Alloc(FX_BYTE, output_nComps);
699 for (int i = 0; i < output_nComps; i ++) {
700 output_offsets[i] = i;
703 output_offsets[0] = 2;
704 output_offsets[2] = 0;
706 if (!pJpxModule->Decode(ctx, m_pCachedBitmap->GetBuffer(), m_pCachedBitmap->GetPitch(), bTranslateColor, output_offsets)) {
707 delete m_pCachedBitmap;
708 m_pCachedBitmap = NULL;
711 FX_Free(output_offsets);
712 pJpxModule->DestroyDecoder(ctx);
713 if (m_pColorSpace && m_pColorSpace->GetFamily() == PDFCS_INDEXED && m_bpc < 8) {
714 int scale = 8 - m_bpc;
715 for (FX_DWORD row = 0; row < height; row ++) {
716 FX_LPBYTE scanline = (FX_LPBYTE)m_pCachedBitmap->GetScanline(row);
717 for (FX_DWORD col = 0; col < width; col ++) {
718 *scanline = (*scanline) >> scale;
725 void CPDF_DIBSource::LoadJbig2Bitmap()
727 ICodec_Jbig2Module* pJbig2Module = CPDF_ModuleMgr::Get()->GetJbig2Module();
728 if (pJbig2Module == NULL) {
731 CPDF_StreamAcc* pGlobalStream = NULL;
732 if (m_pStreamAcc->GetImageParam()) {
733 CPDF_Stream* pGlobals = m_pStreamAcc->GetImageParam()->GetStream(FX_BSTRC("JBIG2Globals"));
735 pGlobalStream = FX_NEW CPDF_StreamAcc;
736 pGlobalStream->LoadAllData(pGlobals, FALSE);
739 m_pCachedBitmap = FX_NEW CFX_DIBitmap;
740 if (!m_pCachedBitmap->Create(m_Width, m_Height, m_bImageMask ? FXDIB_1bppMask : FXDIB_1bppRgb)) {
743 int ret = pJbig2Module->Decode(m_Width, m_Height, m_pStreamAcc->GetData(), m_pStreamAcc->GetSize(),
744 pGlobalStream ? pGlobalStream->GetData() : NULL, pGlobalStream ? pGlobalStream->GetSize() : 0,
745 m_pCachedBitmap->GetBuffer(), m_pCachedBitmap->GetPitch());
747 delete m_pCachedBitmap;
748 m_pCachedBitmap = NULL;
751 delete pGlobalStream;
756 CPDF_DIBSource* CPDF_DIBSource::LoadMask(FX_DWORD& MatteColor)
758 MatteColor = 0xffffffff;
759 CPDF_Stream* pSoftMask = m_pDict->GetStream(FX_BSTRC("SMask"));
761 CPDF_Array* pMatte = pSoftMask->GetDict()->GetArray(FX_BSTRC("Matte"));
762 if (pMatte != NULL && m_pColorSpace && (FX_DWORD)m_pColorSpace->CountComponents() <= m_nComponents) {
763 FX_FLOAT* pColor = FX_Alloc(FX_FLOAT, m_nComponents);
764 for (FX_DWORD i = 0; i < m_nComponents; i ++) {
765 pColor[i] = pMatte->GetFloat(i);
768 m_pColorSpace->GetRGB(pColor, R, G, B);
770 MatteColor = FXARGB_MAKE(0, FXSYS_round(R * 255), FXSYS_round(G * 255), FXSYS_round(B * 255));
772 return LoadMaskDIB(pSoftMask);
774 CPDF_Object* pMask = m_pDict->GetElementValue(FX_BSTRC("Mask"));
778 if (pMask->GetType() == PDFOBJ_STREAM) {
779 return LoadMaskDIB((CPDF_Stream*)pMask);
783 int CPDF_DIBSource::StratLoadMask()
785 m_MatteColor = 0xffffffff;
786 m_pMaskStream = m_pDict->GetStream(FX_BSTRC("SMask"));
788 CPDF_Array* pMatte = m_pMaskStream->GetDict()->GetArray(FX_BSTRC("Matte"));
789 if (pMatte != NULL && m_pColorSpace && (FX_DWORD)m_pColorSpace->CountComponents() <= m_nComponents) {
791 FX_FLOAT* pColor = FX_Alloc(FX_FLOAT, m_nComponents);
792 for (FX_DWORD i = 0; i < m_nComponents; i ++) {
793 pColor[i] = pMatte->GetFloat(i);
795 m_pColorSpace->GetRGB(pColor, R, G, B);
797 m_MatteColor = FXARGB_MAKE(0, FXSYS_round(R * 255), FXSYS_round(G * 255), FXSYS_round(B * 255));
799 return StartLoadMaskDIB();
801 m_pMaskStream = m_pDict->GetElementValue(FX_BSTRC("Mask"));
802 if (m_pMaskStream == NULL) {
805 if (m_pMaskStream->GetType() == PDFOBJ_STREAM) {
806 return StartLoadMaskDIB();
810 int CPDF_DIBSource::ContinueLoadMaskDIB(IFX_Pause* pPause)
812 if (m_pMask == NULL) {
815 int ret = m_pMask->ContinueLoadDIBSource(pPause);
819 if (m_pColorSpace && m_bStdCS) {
820 m_pColorSpace->EnableStdConversion(FALSE);
829 CPDF_DIBSource* CPDF_DIBSource::DetachMask()
831 CPDF_DIBSource* pDIBSource = m_pMask;
835 CPDF_DIBSource* CPDF_DIBSource::LoadMaskDIB(CPDF_Stream* pMask)
837 CPDF_DIBSource* pMaskSource = FX_NEW CPDF_DIBSource;
838 if (!pMaskSource->Load(m_pDocument, pMask, NULL, NULL, NULL, NULL, TRUE)) {
844 int CPDF_DIBSource::StartLoadMaskDIB()
846 m_pMask = FX_NEW CPDF_DIBSource;
847 int ret = m_pMask->StartLoadDIBSource(m_pDocument, (CPDF_Stream*)m_pMaskStream, FALSE, NULL, NULL, TRUE);
861 void CPDF_DIBSource::LoadPalette()
866 if (m_bpc * m_nComponents > 8) {
869 if (m_pColorSpace == NULL) {
872 if (m_bpc * m_nComponents == 1) {
873 if (m_bDefaultDecode && (m_Family == PDFCS_DEVICEGRAY || m_Family == PDFCS_DEVICERGB)) {
876 if (m_pColorSpace->CountComponents() > 3) {
879 FX_FLOAT color_values[3];
880 color_values[0] = m_pCompData[0].m_DecodeMin;
881 color_values[1] = color_values[2] = color_values[0];
882 FX_FLOAT R=0.0f, G=0.0f, B=0.0f;
883 m_pColorSpace->GetRGB(color_values, R, G, B);
884 FX_ARGB argb0 = ArgbEncode(255, FXSYS_round(R * 255), FXSYS_round(G * 255), FXSYS_round(B * 255));
885 color_values[0] += m_pCompData[0].m_DecodeStep;
886 color_values[1] += m_pCompData[0].m_DecodeStep;
887 color_values[2] += m_pCompData[0].m_DecodeStep;
888 m_pColorSpace->GetRGB(color_values, R, G, B);
889 FX_ARGB argb1 = ArgbEncode(255, FXSYS_round(R * 255), FXSYS_round(G * 255), FXSYS_round(B * 255));
890 if (argb0 != 0xFF000000 || argb1 != 0xFFFFFFFF) {
891 SetPaletteArgb(0, argb0);
892 SetPaletteArgb(1, argb1);
896 if (m_pColorSpace == CPDF_ColorSpace::GetStockCS(PDFCS_DEVICEGRAY) && m_bpc == 8 && m_bDefaultDecode) {
898 int palette_count = 1 << (m_bpc * m_nComponents);
899 CFX_FixedBufGrow<FX_FLOAT, 16> color_values(m_nComponents);
900 FX_FLOAT* color_value = color_values;
901 for (int i = 0; i < palette_count; i ++) {
903 for (FX_DWORD j = 0; j < m_nComponents; j ++) {
904 int encoded_component = color_data % (1 << m_bpc);
905 color_data /= 1 << m_bpc;
906 color_value[j] = m_pCompData[j].m_DecodeMin + m_pCompData[j].m_DecodeStep * encoded_component;
908 FX_FLOAT R = 0, G = 0, B = 0;
909 if (m_nComponents == 1 && m_Family == PDFCS_ICCBASED && m_pColorSpace->CountComponents() > 1) {
910 int nComponents = m_pColorSpace->CountComponents();
911 FX_FLOAT* temp_buf = FX_Alloc(FX_FLOAT, nComponents);
912 for (int i = 0; i < nComponents; i++) {
913 temp_buf[i] = *color_value;
915 m_pColorSpace->GetRGB(temp_buf, R, G, B);
918 m_pColorSpace->GetRGB(color_value, R, G, B);
920 SetPaletteArgb(i, ArgbEncode(255, FXSYS_round(R * 255), FXSYS_round(G * 255), FXSYS_round(B * 255)));
924 void CPDF_DIBSource::ValidateDictParam()
927 CPDF_Object * pFilter = m_pDict->GetElementValue(FX_BSTRC("Filter"));
929 if (pFilter->GetType() == PDFOBJ_NAME) {
930 CFX_ByteString filter = pFilter->GetString();
931 if (filter == FX_BSTRC("CCITTFaxDecode") || filter == FX_BSTRC("JBIG2Decode")) {
935 if (filter == FX_BSTRC("RunLengthDecode") || filter == FX_BSTRC("DCTDecode")) {
938 } else if (pFilter->GetType() == PDFOBJ_ARRAY) {
939 CPDF_Array *pArray = (CPDF_Array *)pFilter;
940 if (pArray->GetString(pArray->GetCount() - 1) == FX_BSTRC("CCITTFacDecode") ||
941 pArray->GetString(pArray->GetCount() - 1) == FX_BSTRC("JBIG2Decode")) {
945 if (pArray->GetString(pArray->GetCount() - 1) == FX_BSTRC("RunLengthDecode") ||
946 pArray->GetString(pArray->GetCount() - 1) == FX_BSTRC("DCTDecode")) {
951 if (m_bpc != 1 && m_bpc != 2 && m_bpc != 4 && m_bpc != 8 && m_bpc != 16) {
955 #define NORMALCOLOR_MAX(color, max) (color) > (max) ? (max) : (color) < 0 ? 0 : (color);
956 void CPDF_DIBSource::TranslateScanline24bpp(FX_LPBYTE dest_scan, FX_LPCBYTE src_scan) const
961 int max_data = (1 << m_bpc) - 1;
962 if (m_bDefaultDecode) {
963 if (m_Family == PDFCS_DEVICERGB || m_Family == PDFCS_CALRGB) {
964 FX_LPCBYTE src_pos = src_scan;
967 for (int col = 0; col < m_Width; col ++) {
968 *dest_scan++ = src_pos[4];
969 *dest_scan++ = src_pos[2];
970 *dest_scan++ = *src_pos;
975 for (int column = 0; column < m_Width; column ++) {
976 *dest_scan++ = src_pos[2];
977 *dest_scan++ = src_pos[1];
978 *dest_scan++ = *src_pos;
984 int dest_byte_pos = 0;
985 for (int column = 0; column < m_Width; column ++) {
986 int R = _GetBits8(src_scan, src_bit_pos, m_bpc);
987 src_bit_pos += m_bpc;
988 int G = _GetBits8(src_scan, src_bit_pos, m_bpc);
989 src_bit_pos += m_bpc;
990 int B = _GetBits8(src_scan, src_bit_pos, m_bpc);
991 src_bit_pos += m_bpc;
992 R = NORMALCOLOR_MAX(R, max_data);
993 G = NORMALCOLOR_MAX(G, max_data);
994 B = NORMALCOLOR_MAX(B, max_data);
995 dest_scan[dest_byte_pos] = B * 255 / max_data;
996 dest_scan[dest_byte_pos + 1] = G * 255 / max_data;
997 dest_scan[dest_byte_pos + 2] = R * 255 / max_data;
1003 } else if (m_bpc == 8) {
1004 if (m_nComponents == m_pColorSpace->CountComponents())
1005 m_pColorSpace->TranslateImageLine(dest_scan, src_scan, m_Width, m_Width, m_Height,
1006 m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && m_Family == PDFCS_DEVICECMYK);
1010 CFX_FixedBufGrow<FX_FLOAT, 16> color_values1(m_nComponents);
1011 FX_FLOAT* color_values = color_values1;
1012 FX_FLOAT R = 0.0f, G = 0.0f, B = 0.0f;
1014 int src_byte_pos = 0;
1015 int dest_byte_pos = 0;
1016 for (int column = 0; column < m_Width; column ++) {
1017 for (FX_DWORD color = 0; color < m_nComponents; color ++) {
1018 int data = src_scan[src_byte_pos ++];
1019 color_values[color] = m_pCompData[color].m_DecodeMin +
1020 m_pCompData[color].m_DecodeStep * data;
1022 if (m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && m_Family == PDFCS_DEVICECMYK) {
1023 FX_FLOAT k = 1.0f - color_values[3];
1024 R = (1.0f - color_values[0]) * k;
1025 G = (1.0f - color_values[1]) * k;
1026 B = (1.0f - color_values[2]) * k;
1028 m_pColorSpace->GetRGB(color_values, R, G, B);
1030 R = NORMALCOLOR_MAX(R, 1);
1031 G = NORMALCOLOR_MAX(G, 1);
1032 B = NORMALCOLOR_MAX(B, 1);
1033 dest_scan[dest_byte_pos] = (FX_INT32)(B * 255);
1034 dest_scan[dest_byte_pos + 1] = (FX_INT32)(G * 255);
1035 dest_scan[dest_byte_pos + 2] = (FX_INT32)(R * 255);
1039 int src_bit_pos = 0;
1040 int dest_byte_pos = 0;
1041 for (int column = 0; column < m_Width; column ++) {
1042 for (FX_DWORD color = 0; color < m_nComponents; color ++) {
1043 int data = _GetBits8(src_scan, src_bit_pos, m_bpc);
1044 color_values[color] = m_pCompData[color].m_DecodeMin +
1045 m_pCompData[color].m_DecodeStep * data;
1046 src_bit_pos += m_bpc;
1048 if (m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && m_Family == PDFCS_DEVICECMYK) {
1049 FX_FLOAT k = 1.0f - color_values[3];
1050 R = (1.0f - color_values[0]) * k;
1051 G = (1.0f - color_values[1]) * k;
1052 B = (1.0f - color_values[2]) * k;
1054 m_pColorSpace->GetRGB(color_values, R, G, B);
1056 R = NORMALCOLOR_MAX(R, 1);
1057 G = NORMALCOLOR_MAX(G, 1);
1058 B = NORMALCOLOR_MAX(B, 1);
1059 dest_scan[dest_byte_pos] = (FX_INT32)(B * 255);
1060 dest_scan[dest_byte_pos + 1] = (FX_INT32)(G * 255);
1061 dest_scan[dest_byte_pos + 2] = (FX_INT32)(R * 255);
1066 FX_LPBYTE CPDF_DIBSource::GetBuffer() const
1068 if (m_pCachedBitmap) {
1069 return m_pCachedBitmap->GetBuffer();
1073 FX_LPCBYTE CPDF_DIBSource::GetScanline(int line) const
1078 FX_SAFE_DWORD src_pitch = m_Width;
1080 src_pitch *= m_nComponents;
1083 if (!src_pitch.IsValid())
1085 FX_DWORD src_pitch_value = src_pitch.ValueOrDie();
1086 FX_LPCBYTE pSrcLine = NULL;
1087 if (m_pCachedBitmap) {
1088 if (line >= m_pCachedBitmap->GetHeight()) {
1089 line = m_pCachedBitmap->GetHeight() - 1;
1091 pSrcLine = m_pCachedBitmap->GetScanline(line);
1092 } else if (m_pDecoder) {
1093 pSrcLine = m_pDecoder->GetScanline(line);
1095 if (m_pStreamAcc->GetSize() >= (line + 1) * src_pitch_value) {
1096 pSrcLine = m_pStreamAcc->GetData() + line * src_pitch_value;
1099 if (pSrcLine == NULL) {
1100 FX_LPBYTE pLineBuf = m_pMaskedLine ? m_pMaskedLine : m_pLineBuf;
1101 FXSYS_memset8(pLineBuf, 0xff, m_Pitch);
1104 if (m_bpc * m_nComponents == 1) {
1105 if (m_bImageMask && m_bDefaultDecode) {
1106 for (FX_DWORD i = 0; i < src_pitch_value; i++) {
1107 m_pLineBuf[i] = ~pSrcLine[i];
1109 } else if (m_bColorKey) {
1110 FX_DWORD reset_argb, set_argb;
1111 reset_argb = m_pPalette ? m_pPalette[0] : 0xff000000;
1112 set_argb = m_pPalette ? m_pPalette[1] : 0xffffffff;
1113 if (m_pCompData[0].m_ColorKeyMin == 0) {
1116 if (m_pCompData[0].m_ColorKeyMax == 1) {
1119 set_argb = FXARGB_TODIB(set_argb);
1120 reset_argb = FXARGB_TODIB(reset_argb);
1121 FX_DWORD* dest_scan = (FX_DWORD*)m_pMaskedLine;
1122 for (int col = 0; col < m_Width; col ++) {
1123 if (pSrcLine[col / 8] & (1 << (7 - col % 8))) {
1124 *dest_scan = set_argb;
1126 *dest_scan = reset_argb;
1130 return m_pMaskedLine;
1132 FXSYS_memcpy32(m_pLineBuf, pSrcLine, src_pitch_value);
1136 if (m_bpc * m_nComponents <= 8) {
1138 FXSYS_memcpy32(m_pLineBuf, pSrcLine, src_pitch_value);
1140 int src_bit_pos = 0;
1141 for (int col = 0; col < m_Width; col ++) {
1142 int color_index = 0;
1143 for (FX_DWORD color = 0; color < m_nComponents; color ++) {
1144 int data = _GetBits8(pSrcLine, src_bit_pos, m_bpc);
1145 color_index |= data << (color * m_bpc);
1146 src_bit_pos += m_bpc;
1148 m_pLineBuf[col] = color_index;
1152 FX_LPBYTE pDestPixel = m_pMaskedLine;
1153 FX_LPCBYTE pSrcPixel = m_pLineBuf;
1154 for (int col = 0; col < m_Width; col ++) {
1155 FX_BYTE index = *pSrcPixel++;
1157 *pDestPixel++ = FXARGB_B(m_pPalette[index]);
1158 *pDestPixel++ = FXARGB_G(m_pPalette[index]);
1159 *pDestPixel++ = FXARGB_R(m_pPalette[index]);
1161 *pDestPixel++ = index;
1162 *pDestPixel++ = index;
1163 *pDestPixel++ = index;
1165 *pDestPixel = (index < m_pCompData[0].m_ColorKeyMin || index > m_pCompData[0].m_ColorKeyMax) ? 0xff : 0;
1168 return m_pMaskedLine;
1173 if (m_nComponents == 3 && m_bpc == 8) {
1174 FX_LPBYTE alpha_channel = m_pMaskedLine + 3;
1175 for (int col = 0; col < m_Width; col ++) {
1176 FX_LPCBYTE pPixel = pSrcLine + col * 3;
1177 alpha_channel[col * 4] = (pPixel[0] < m_pCompData[0].m_ColorKeyMin || pPixel[0] > m_pCompData[0].m_ColorKeyMax ||
1178 pPixel[1] < m_pCompData[1].m_ColorKeyMin || pPixel[1] > m_pCompData[1].m_ColorKeyMax ||
1179 pPixel[2] < m_pCompData[2].m_ColorKeyMin || pPixel[2] > m_pCompData[2].m_ColorKeyMax) ? 0xff : 0;
1182 FXSYS_memset8(m_pMaskedLine, 0xff, m_Pitch);
1185 if (m_pColorSpace) {
1186 TranslateScanline24bpp(m_pLineBuf, pSrcLine);
1187 pSrcLine = m_pLineBuf;
1190 FX_LPCBYTE pSrcPixel = pSrcLine;
1191 FX_LPBYTE pDestPixel = m_pMaskedLine;
1192 for (int col = 0; col < m_Width; col ++) {
1193 *pDestPixel++ = *pSrcPixel++;
1194 *pDestPixel++ = *pSrcPixel++;
1195 *pDestPixel++ = *pSrcPixel++;
1198 return m_pMaskedLine;
1202 FX_BOOL CPDF_DIBSource::SkipToScanline(int line, IFX_Pause* pPause) const
1205 return m_pDecoder->SkipToScanline(line, pPause);
1209 void CPDF_DIBSource::DownSampleScanline(int line, FX_LPBYTE dest_scan, int dest_bpp,
1210 int dest_width, FX_BOOL bFlipX, int clip_left, int clip_width) const
1212 if (line < 0 || dest_scan == NULL || dest_bpp <= 0 ||
1213 dest_width <= 0 || clip_left < 0 || clip_width <= 0) {
1217 FX_DWORD src_width = m_Width;
1218 FX_SAFE_DWORD pitch = src_width;
1220 pitch *= m_nComponents;
1223 if (!pitch.IsValid()) {
1227 FX_LPCBYTE pSrcLine = NULL;
1228 if (m_pCachedBitmap) {
1229 pSrcLine = m_pCachedBitmap->GetScanline(line);
1230 } else if (m_pDecoder) {
1231 pSrcLine = m_pDecoder->GetScanline(line);
1233 FX_DWORD src_pitch = pitch.ValueOrDie();
1235 if (!pitch.IsValid()) {
1239 if (m_pStreamAcc->GetSize() >= pitch.ValueOrDie()) {
1240 pSrcLine = m_pStreamAcc->GetData() + line * src_pitch;
1243 int orig_Bpp = m_bpc * m_nComponents / 8;
1244 int dest_Bpp = dest_bpp / 8;
1245 if (pSrcLine == NULL) {
1246 FXSYS_memset32(dest_scan, 0xff, dest_Bpp * clip_width);
1250 FX_SAFE_INT32 max_src_x = clip_left;
1251 max_src_x += clip_width - 1;
1252 max_src_x *= src_width;
1253 max_src_x /= dest_width;
1254 if (!max_src_x.IsValid()) {
1258 CFX_FixedBufGrow<FX_BYTE, 128> temp(orig_Bpp);
1259 if (m_bpc * m_nComponents == 1) {
1260 FX_DWORD set_argb = (FX_DWORD) - 1, reset_argb = 0;
1262 if (m_bDefaultDecode) {
1264 reset_argb = (FX_DWORD) - 1;
1266 } else if (m_bColorKey) {
1267 reset_argb = m_pPalette ? m_pPalette[0] : 0xff000000;
1268 set_argb = m_pPalette ? m_pPalette[1] : 0xffffffff;
1269 if (m_pCompData[0].m_ColorKeyMin == 0) {
1272 if (m_pCompData[0].m_ColorKeyMax == 1) {
1275 set_argb = FXARGB_TODIB(set_argb);
1276 reset_argb = FXARGB_TODIB(reset_argb);
1277 for (int i = 0; i < clip_width; i ++) {
1278 FX_DWORD src_x = (clip_left + i) * src_width / dest_width;
1280 src_x = src_width - src_x - 1;
1283 if (pSrcLine[src_x / 8] & (1 << (7 - src_x % 8))) {
1284 ((FX_DWORD*)dest_scan)[i] = set_argb;
1286 ((FX_DWORD*)dest_scan)[i] = reset_argb;
1291 if (dest_Bpp == 1) {
1292 } else if (m_pPalette) {
1293 reset_argb = m_pPalette[0];
1294 set_argb = m_pPalette[1];
1297 for (int i = 0; i < clip_width; i ++) {
1298 FX_DWORD src_x = (clip_left + i) * src_width / dest_width;
1300 src_x = src_width - src_x - 1;
1303 int dest_pos = i * dest_Bpp;
1304 if (pSrcLine[src_x / 8] & (1 << (7 - src_x % 8))) {
1305 if (dest_Bpp == 1) {
1306 dest_scan[dest_pos] = (FX_BYTE)set_argb;
1307 } else if (dest_Bpp == 3) {
1308 dest_scan[dest_pos] = FXARGB_B(set_argb);
1309 dest_scan[dest_pos + 1] = FXARGB_G(set_argb);
1310 dest_scan[dest_pos + 2] = FXARGB_R(set_argb);
1312 *(FX_DWORD*)(dest_scan + dest_pos) = set_argb;
1315 if (dest_Bpp == 1) {
1316 dest_scan[dest_pos] = (FX_BYTE)reset_argb;
1317 } else if (dest_Bpp == 3) {
1318 dest_scan[dest_pos] = FXARGB_B(reset_argb);
1319 dest_scan[dest_pos + 1] = FXARGB_G(reset_argb);
1320 dest_scan[dest_pos + 2] = FXARGB_R(reset_argb);
1322 *(FX_DWORD*)(dest_scan + dest_pos) = reset_argb;
1327 } else if (m_bpc * m_nComponents <= 8) {
1329 int src_bit_pos = 0;
1330 for (FX_DWORD col = 0; col < src_width; col ++) {
1331 int color_index = 0;
1332 for (FX_DWORD color = 0; color < m_nComponents; color ++) {
1333 int data = _GetBits8(pSrcLine, src_bit_pos, m_bpc);
1334 color_index |= data << (color * m_bpc);
1335 src_bit_pos += m_bpc;
1337 m_pLineBuf[col] = color_index;
1339 pSrcLine = m_pLineBuf;
1342 for (int i = 0; i < clip_width; i ++) {
1343 FX_DWORD src_x = (clip_left + i) * src_width / dest_width;
1345 src_x = src_width - src_x - 1;
1348 FX_LPBYTE pDestPixel = dest_scan + i * 4;
1349 FX_BYTE index = pSrcLine[src_x];
1351 *pDestPixel++ = FXARGB_B(m_pPalette[index]);
1352 *pDestPixel++ = FXARGB_G(m_pPalette[index]);
1353 *pDestPixel++ = FXARGB_R(m_pPalette[index]);
1355 *pDestPixel++ = index;
1356 *pDestPixel++ = index;
1357 *pDestPixel++ = index;
1359 *pDestPixel = (index < m_pCompData[0].m_ColorKeyMin || index > m_pCompData[0].m_ColorKeyMax) ? 0xff : 0;
1363 for (int i = 0; i < clip_width; i ++) {
1364 FX_DWORD src_x = (clip_left + i) * src_width / dest_width;
1366 src_x = src_width - src_x - 1;
1369 FX_BYTE index = pSrcLine[src_x];
1370 if (dest_Bpp == 1) {
1371 dest_scan[i] = index;
1373 int dest_pos = i * dest_Bpp;
1374 FX_ARGB argb = m_pPalette[index];
1375 dest_scan[dest_pos] = FXARGB_B(argb);
1376 dest_scan[dest_pos + 1] = FXARGB_G(argb);
1377 dest_scan[dest_pos + 2] = FXARGB_R(argb);
1382 int last_src_x = -1;
1384 FX_FLOAT orig_Not8Bpp = (FX_FLOAT)m_bpc * (FX_FLOAT)m_nComponents / 8.0f;
1385 FX_FLOAT unit_To8Bpc = 255.0f / ((1 << m_bpc) - 1);
1386 for (int i = 0; i < clip_width; i ++) {
1387 int dest_x = clip_left + i;
1388 FX_DWORD src_x = (bFlipX ? (dest_width - dest_x - 1) : dest_x) * (FX_INT64)src_width / dest_width;
1390 FX_LPCBYTE pSrcPixel = NULL;
1391 if (m_bpc % 8 == 0) {
1392 pSrcPixel = pSrcLine + src_x * orig_Bpp;
1394 pSrcPixel = pSrcLine + (int)(src_x * orig_Not8Bpp);
1396 FX_LPBYTE pDestPixel = dest_scan + i * dest_Bpp;
1398 if (src_x == last_src_x) {
1401 if (m_pColorSpace) {
1403 if (!m_bDefaultDecode) {
1404 for (int i = 0; i < m_nComponents; i ++) {
1405 int color_value = (int)((m_pCompData[i].m_DecodeMin + m_pCompData[i].m_DecodeStep * (FX_FLOAT)pSrcPixel[i]) * 255.0f + 0.5f);
1406 temp[i] = color_value > 255 ? 255 : (color_value < 0 ? 0 : color_value);
1408 m_pColorSpace->TranslateImageLine(color, temp, 1, 0, 0, m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && m_Family == PDFCS_DEVICECMYK);
1411 int src_bit_pos = 0;
1415 for (FX_DWORD i = 0; i < m_nComponents; i ++) {
1416 temp[i] = (FX_BYTE)(_GetBits8(pSrcPixel, src_bit_pos, m_bpc) * unit_To8Bpc);
1417 src_bit_pos += m_bpc;
1419 m_pColorSpace->TranslateImageLine(color, temp, 1, 0, 0, m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && m_Family == PDFCS_DEVICECMYK);
1421 m_pColorSpace->TranslateImageLine(color, pSrcPixel, 1, 0, 0, m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && m_Family == PDFCS_DEVICECMYK);
1424 argb = FXARGB_MAKE(0xff, color[2], color[1], color[0]);
1426 argb = FXARGB_MAKE(0xff, pSrcPixel[2], pSrcPixel[1], pSrcPixel[0]);
1430 if (m_nComponents == 3 && m_bpc == 8) {
1431 alpha = (pSrcPixel[0] < m_pCompData[0].m_ColorKeyMin ||
1432 pSrcPixel[0] > m_pCompData[0].m_ColorKeyMax ||
1433 pSrcPixel[1] < m_pCompData[1].m_ColorKeyMin ||
1434 pSrcPixel[1] > m_pCompData[1].m_ColorKeyMax ||
1435 pSrcPixel[2] < m_pCompData[2].m_ColorKeyMin ||
1436 pSrcPixel[2] > m_pCompData[2].m_ColorKeyMax) ? 0xff : 0;
1439 argb |= alpha << 24;
1444 if (dest_Bpp == 4) {
1445 *(FX_DWORD*)pDestPixel = FXARGB_TODIB(argb);
1447 *pDestPixel++ = FXARGB_B(argb);
1448 *pDestPixel++ = FXARGB_G(argb);
1449 *pDestPixel = FXARGB_R(argb);
1454 void CPDF_DIBSource::SetDownSampleSize(int dest_width, int dest_height) const
1457 m_pDecoder->DownScale(dest_width, dest_height);
1458 ((CPDF_DIBSource*)this)->m_Width = m_pDecoder->GetWidth();
1459 ((CPDF_DIBSource*)this)->m_Height = m_pDecoder->GetHeight();
1462 void CPDF_DIBSource::ClearImageData()
1465 m_pDecoder->ClearImageData();
1468 CPDF_ProgressiveImageLoaderHandle::CPDF_ProgressiveImageLoaderHandle()
1470 m_pImageLoader = NULL;
1474 CPDF_ProgressiveImageLoaderHandle::~CPDF_ProgressiveImageLoaderHandle()
1476 m_pImageLoader = NULL;
1480 FX_BOOL CPDF_ProgressiveImageLoaderHandle::Start(CPDF_ImageLoader* pImageLoader, const CPDF_ImageObject* pImage, CPDF_PageRenderCache* pCache, FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask, CPDF_RenderStatus* pRenderStatus, FX_INT32 nDownsampleWidth, FX_INT32 nDownsampleHeight)
1482 m_pImageLoader = pImageLoader;
1484 m_pImage = (CPDF_ImageObject*)pImage;
1485 m_nDownsampleWidth = nDownsampleWidth;
1486 m_nDownsampleHeight = nDownsampleHeight;
1489 ret = pCache->StartGetCachedBitmap(pImage->m_pImage->GetStream(), bStdCS, GroupFamily, bLoadMask, pRenderStatus, m_nDownsampleWidth, m_nDownsampleHeight);
1491 m_pImageLoader->m_bCached = TRUE;
1492 m_pImageLoader->m_pBitmap = pCache->m_pCurImageCache->DetachBitmap();
1493 m_pImageLoader->m_pMask = pCache->m_pCurImageCache->DetachMask();
1494 m_pImageLoader->m_MatteColor = pCache->m_pCurImageCache->m_MatteColor;
1497 ret = pImage->m_pImage->StartLoadDIBSource(pRenderStatus->m_pFormResource, pRenderStatus->m_pPageResource, bStdCS, GroupFamily, bLoadMask);
1499 m_pImageLoader->m_bCached = FALSE;
1500 m_pImageLoader->m_pBitmap = m_pImage->m_pImage->DetachBitmap();
1501 m_pImageLoader->m_pMask = m_pImage->m_pImage->DetachMask();
1502 m_pImageLoader->m_MatteColor = m_pImage->m_pImage->m_MatteColor;
1507 FX_BOOL CPDF_ProgressiveImageLoaderHandle::Continue(IFX_Pause* pPause)
1511 ret = m_pCache->Continue(pPause);
1513 m_pImageLoader->m_bCached = TRUE;
1514 m_pImageLoader->m_pBitmap = m_pCache->m_pCurImageCache->DetachBitmap();
1515 m_pImageLoader->m_pMask = m_pCache->m_pCurImageCache->DetachMask();
1516 m_pImageLoader->m_MatteColor = m_pCache->m_pCurImageCache->m_MatteColor;
1519 ret = m_pImage->m_pImage->Continue(pPause);
1521 m_pImageLoader->m_bCached = FALSE;
1522 m_pImageLoader->m_pBitmap = m_pImage->m_pImage->DetachBitmap();
1523 m_pImageLoader->m_pMask = m_pImage->m_pImage->DetachMask();
1524 m_pImageLoader->m_MatteColor = m_pImage->m_pImage->m_MatteColor;
1529 FX_BOOL CPDF_ImageLoader::Load(const CPDF_ImageObject* pImage, CPDF_PageRenderCache* pCache, FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask, CPDF_RenderStatus* pRenderStatus)
1531 if (pImage == NULL) {
1535 pCache->GetCachedBitmap(pImage->m_pImage->GetStream(), m_pBitmap, m_pMask, m_MatteColor, bStdCS, GroupFamily, bLoadMask, pRenderStatus, m_nDownsampleWidth, m_nDownsampleHeight);
1538 m_pBitmap = pImage->m_pImage->LoadDIBSource(&m_pMask, &m_MatteColor, bStdCS, GroupFamily, bLoadMask);
1543 FX_BOOL CPDF_ImageLoader::StartLoadImage(const CPDF_ImageObject* pImage, CPDF_PageRenderCache* pCache, FX_LPVOID& LoadHandle, FX_BOOL bStdCS, FX_DWORD GroupFamily, FX_BOOL bLoadMask, CPDF_RenderStatus* pRenderStatus, FX_INT32 nDownsampleWidth, FX_INT32 nDownsampleHeight)
1545 m_nDownsampleWidth = nDownsampleWidth;
1546 m_nDownsampleHeight = nDownsampleHeight;
1547 CPDF_ProgressiveImageLoaderHandle* pLoaderHandle = NULL;
1548 pLoaderHandle = FX_NEW CPDF_ProgressiveImageLoaderHandle;
1549 FX_BOOL ret = pLoaderHandle->Start(this, pImage, pCache, bStdCS, GroupFamily, bLoadMask, pRenderStatus, m_nDownsampleWidth, m_nDownsampleHeight);
1550 LoadHandle = pLoaderHandle;
1553 FX_BOOL CPDF_ImageLoader::Continue(FX_LPVOID LoadHandle, IFX_Pause* pPause)
1555 return ((CPDF_ProgressiveImageLoaderHandle*)LoadHandle)->Continue(pPause);
1557 CPDF_ImageLoader::~CPDF_ImageLoader()