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-rw-r--r--core/fxcodec/codec/ccodec_faxmodule.cpp48
-rw-r--r--core/fxcodec/codec/ccodec_faxmodule.h22
-rw-r--r--core/fxcodec/codec/ccodec_flatemodule.cpp34
-rw-r--r--core/fxcodec/codec/ccodec_flatemodule.h22
-rw-r--r--core/fxcodec/codec/ccodec_jpxmodule.cpp10
-rw-r--r--core/fxcodec/codec/ccodec_jpxmodule.h8
6 files changed, 71 insertions, 73 deletions
diff --git a/core/fxcodec/codec/ccodec_faxmodule.cpp b/core/fxcodec/codec/ccodec_faxmodule.cpp
index af218f7e01..faa40da6bf 100644
--- a/core/fxcodec/codec/ccodec_faxmodule.cpp
+++ b/core/fxcodec/codec/ccodec_faxmodule.cpp
@@ -450,8 +450,7 @@ void FaxGet1DLine(const uint8_t* src_buf,
class CCodec_FaxDecoder final : public CCodec_ScanlineDecoder {
public:
- CCodec_FaxDecoder(const uint8_t* src_buf,
- uint32_t src_size,
+ CCodec_FaxDecoder(pdfium::span<const uint8_t> src_span,
int width,
int height,
uint32_t pitch,
@@ -468,18 +467,16 @@ class CCodec_FaxDecoder final : public CCodec_ScanlineDecoder {
private:
const int m_Encoding;
- int m_bitpos;
- bool m_bByteAlign;
+ int m_bitpos = 0;
+ bool m_bByteAlign = false;
const bool m_bEndOfLine;
const bool m_bBlack;
- const uint32_t m_SrcSize;
- const uint8_t* const m_pSrcBuf;
+ pdfium::span<const uint8_t> const m_SrcSpan;
std::vector<uint8_t> m_ScanlineBuf;
std::vector<uint8_t> m_RefBuf;
};
-CCodec_FaxDecoder::CCodec_FaxDecoder(const uint8_t* src_buf,
- uint32_t src_size,
+CCodec_FaxDecoder::CCodec_FaxDecoder(pdfium::span<const uint8_t> src_span,
int width,
int height,
uint32_t pitch,
@@ -489,12 +486,10 @@ CCodec_FaxDecoder::CCodec_FaxDecoder(const uint8_t* src_buf,
bool BlackIs1)
: CCodec_ScanlineDecoder(width, height, width, height, 1, 1, pitch),
m_Encoding(K),
- m_bitpos(0),
m_bByteAlign(EncodedByteAlign),
m_bEndOfLine(EndOfLine),
m_bBlack(BlackIs1),
- m_SrcSize(src_size),
- m_pSrcBuf(src_buf),
+ m_SrcSpan(src_span),
m_ScanlineBuf(pitch),
m_RefBuf(pitch) {}
@@ -507,35 +502,37 @@ bool CCodec_FaxDecoder::v_Rewind() {
}
uint8_t* CCodec_FaxDecoder::v_GetNextLine() {
- int bitsize = m_SrcSize * 8;
- FaxSkipEOL(m_pSrcBuf, bitsize, &m_bitpos);
+ int bitsize = m_SrcSpan.size() * 8;
+ FaxSkipEOL(m_SrcSpan.data(), bitsize, &m_bitpos);
if (m_bitpos >= bitsize)
return nullptr;
memset(m_ScanlineBuf.data(), 0xff, m_ScanlineBuf.size());
if (m_Encoding < 0) {
- FaxG4GetRow(m_pSrcBuf, bitsize, &m_bitpos, m_ScanlineBuf.data(), m_RefBuf,
- m_OrigWidth);
+ FaxG4GetRow(m_SrcSpan.data(), bitsize, &m_bitpos, m_ScanlineBuf.data(),
+ m_RefBuf, m_OrigWidth);
m_RefBuf = m_ScanlineBuf;
} else if (m_Encoding == 0) {
- FaxGet1DLine(m_pSrcBuf, bitsize, &m_bitpos, &m_ScanlineBuf, m_OrigWidth);
+ FaxGet1DLine(m_SrcSpan.data(), bitsize, &m_bitpos, &m_ScanlineBuf,
+ m_OrigWidth);
} else {
- if (NextBit(m_pSrcBuf, &m_bitpos)) {
- FaxGet1DLine(m_pSrcBuf, bitsize, &m_bitpos, &m_ScanlineBuf, m_OrigWidth);
+ if (NextBit(m_SrcSpan.data(), &m_bitpos)) {
+ FaxGet1DLine(m_SrcSpan.data(), bitsize, &m_bitpos, &m_ScanlineBuf,
+ m_OrigWidth);
} else {
- FaxG4GetRow(m_pSrcBuf, bitsize, &m_bitpos, m_ScanlineBuf.data(), m_RefBuf,
- m_OrigWidth);
+ FaxG4GetRow(m_SrcSpan.data(), bitsize, &m_bitpos, m_ScanlineBuf.data(),
+ m_RefBuf, m_OrigWidth);
}
m_RefBuf = m_ScanlineBuf;
}
if (m_bEndOfLine)
- FaxSkipEOL(m_pSrcBuf, bitsize, &m_bitpos);
+ FaxSkipEOL(m_SrcSpan.data(), bitsize, &m_bitpos);
if (m_bByteAlign && m_bitpos < bitsize) {
int bitpos0 = m_bitpos;
int bitpos1 = (m_bitpos + 7) / 8 * 8;
while (m_bByteAlign && bitpos0 < bitpos1) {
- int bit = m_pSrcBuf[bitpos0 / 8] & (1 << (7 - bitpos0 % 8));
+ int bit = m_SrcSpan[bitpos0 / 8] & (1 << (7 - bitpos0 % 8));
if (bit != 0)
m_bByteAlign = false;
else
@@ -555,7 +552,7 @@ uint8_t* CCodec_FaxDecoder::v_GetNextLine() {
}
uint32_t CCodec_FaxDecoder::GetSrcOffset() {
- return std::min(static_cast<uint32_t>((m_bitpos + 7) / 8), m_SrcSize);
+ return std::min(static_cast<size_t>((m_bitpos + 7) / 8), m_SrcSpan.size());
}
void FaxG4Decode(const uint8_t* src_buf,
@@ -580,8 +577,7 @@ void FaxG4Decode(const uint8_t* src_buf,
}
std::unique_ptr<CCodec_ScanlineDecoder> CCodec_FaxModule::CreateDecoder(
- const uint8_t* src_buf,
- uint32_t src_size,
+ pdfium::span<const uint8_t> src_span,
int width,
int height,
int K,
@@ -603,7 +599,7 @@ std::unique_ptr<CCodec_ScanlineDecoder> CCodec_FaxModule::CreateDecoder(
uint32_t pitch = (static_cast<uint32_t>(actual_width) + 31) / 32 * 4;
return pdfium::MakeUnique<CCodec_FaxDecoder>(
- src_buf, src_size, actual_width, actual_height, pitch, K, EndOfLine,
+ src_span, actual_width, actual_height, pitch, K, EndOfLine,
EncodedByteAlign, BlackIs1);
}
diff --git a/core/fxcodec/codec/ccodec_faxmodule.h b/core/fxcodec/codec/ccodec_faxmodule.h
index 4f8ab78ac4..3d546d741a 100644
--- a/core/fxcodec/codec/ccodec_faxmodule.h
+++ b/core/fxcodec/codec/ccodec_faxmodule.h
@@ -11,21 +11,23 @@
#include "core/fxcrt/fx_memory.h"
#include "core/fxcrt/fx_system.h"
+#include "third_party/base/span.h"
class CCodec_ScanlineDecoder;
class CCodec_FaxModule {
public:
- std::unique_ptr<CCodec_ScanlineDecoder> CreateDecoder(const uint8_t* src_buf,
- uint32_t src_size,
- int width,
- int height,
- int K,
- bool EndOfLine,
- bool EncodedByteAlign,
- bool BlackIs1,
- int Columns,
- int Rows);
+ std::unique_ptr<CCodec_ScanlineDecoder> CreateDecoder(
+ pdfium::span<const uint8_t> src_buf,
+ int width,
+ int height,
+ int K,
+ bool EndOfLine,
+ bool EncodedByteAlign,
+ bool BlackIs1,
+ int Columns,
+ int Rows);
+
#if _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_
static void FaxEncode(const uint8_t* src_buf,
int width,
diff --git a/core/fxcodec/codec/ccodec_flatemodule.cpp b/core/fxcodec/codec/ccodec_flatemodule.cpp
index 9074038c96..0a4baea38f 100644
--- a/core/fxcodec/codec/ccodec_flatemodule.cpp
+++ b/core/fxcodec/codec/ccodec_flatemodule.cpp
@@ -568,8 +568,7 @@ static PredictorType GetPredictor(int predictor) {
class CCodec_FlateScanlineDecoder : public CCodec_ScanlineDecoder {
public:
- CCodec_FlateScanlineDecoder(const uint8_t* src_buf,
- uint32_t src_size,
+ CCodec_FlateScanlineDecoder(pdfium::span<const uint8_t> src_buf,
int width,
int height,
int nComps,
@@ -587,12 +586,12 @@ class CCodec_FlateScanlineDecoder : public CCodec_ScanlineDecoder {
std::unique_ptr<uint8_t, FxFreeDeleter> const m_pScanline;
};
-CCodec_FlateScanlineDecoder::CCodec_FlateScanlineDecoder(const uint8_t* src_buf,
- uint32_t src_size,
- int width,
- int height,
- int nComps,
- int bpc)
+CCodec_FlateScanlineDecoder::CCodec_FlateScanlineDecoder(
+ pdfium::span<const uint8_t> src_span,
+ int width,
+ int height,
+ int nComps,
+ int bpc)
: CCodec_ScanlineDecoder(width,
height,
width,
@@ -600,7 +599,7 @@ CCodec_FlateScanlineDecoder::CCodec_FlateScanlineDecoder(const uint8_t* src_buf,
nComps,
bpc,
CalculatePitch8(bpc, nComps, width).ValueOrDie()),
- m_SrcBuf(src_buf, src_size),
+ m_SrcBuf(src_span),
m_pScanline(FX_Alloc(uint8_t, m_Pitch)) {}
CCodec_FlateScanlineDecoder::~CCodec_FlateScanlineDecoder() = default;
@@ -626,8 +625,7 @@ uint32_t CCodec_FlateScanlineDecoder::GetSrcOffset() {
class CCodec_FlatePredictorScanlineDecoder final
: public CCodec_FlateScanlineDecoder {
public:
- CCodec_FlatePredictorScanlineDecoder(const uint8_t* src_buf,
- uint32_t src_size,
+ CCodec_FlatePredictorScanlineDecoder(pdfium::span<const uint8_t> src_buf,
int width,
int height,
int comps,
@@ -658,8 +656,7 @@ class CCodec_FlatePredictorScanlineDecoder final
};
CCodec_FlatePredictorScanlineDecoder::CCodec_FlatePredictorScanlineDecoder(
- const uint8_t* src_buf,
- uint32_t src_size,
+ pdfium::span<const uint8_t> src_span,
int width,
int height,
int comps,
@@ -668,7 +665,7 @@ CCodec_FlatePredictorScanlineDecoder::CCodec_FlatePredictorScanlineDecoder(
int Colors,
int BitsPerComponent,
int Columns)
- : CCodec_FlateScanlineDecoder(src_buf, src_size, width, height, comps, bpc),
+ : CCodec_FlateScanlineDecoder(src_span, width, height, comps, bpc),
m_Predictor(predictor) {
ASSERT(m_Predictor != PredictorType::kNone);
if (BitsPerComponent * Colors * Columns == 0) {
@@ -765,8 +762,7 @@ void CCodec_FlatePredictorScanlineDecoder::GetNextLineWithoutPredictedPitch() {
} // namespace
std::unique_ptr<CCodec_ScanlineDecoder> CCodec_FlateModule::CreateDecoder(
- const uint8_t* src_buf,
- uint32_t src_size,
+ pdfium::span<const uint8_t> src_span,
int width,
int height,
int nComps,
@@ -777,11 +773,11 @@ std::unique_ptr<CCodec_ScanlineDecoder> CCodec_FlateModule::CreateDecoder(
int Columns) {
PredictorType predictor_type = GetPredictor(predictor);
if (predictor_type == PredictorType::kNone) {
- return pdfium::MakeUnique<CCodec_FlateScanlineDecoder>(
- src_buf, src_size, width, height, nComps, bpc);
+ return pdfium::MakeUnique<CCodec_FlateScanlineDecoder>(src_span, width,
+ height, nComps, bpc);
}
return pdfium::MakeUnique<CCodec_FlatePredictorScanlineDecoder>(
- src_buf, src_size, width, height, nComps, bpc, predictor_type, Colors,
+ src_span, width, height, nComps, bpc, predictor_type, Colors,
BitsPerComponent, Columns);
}
diff --git a/core/fxcodec/codec/ccodec_flatemodule.h b/core/fxcodec/codec/ccodec_flatemodule.h
index c84be7cc87..dab34be8a0 100644
--- a/core/fxcodec/codec/ccodec_flatemodule.h
+++ b/core/fxcodec/codec/ccodec_flatemodule.h
@@ -10,21 +10,23 @@
#include <memory>
#include "core/fxcrt/fx_system.h"
+#include "third_party/base/span.h"
class CCodec_ScanlineDecoder;
class CCodec_FlateModule {
public:
- std::unique_ptr<CCodec_ScanlineDecoder> CreateDecoder(const uint8_t* src_buf,
- uint32_t src_size,
- int width,
- int height,
- int nComps,
- int bpc,
- int predictor,
- int Colors,
- int BitsPerComponent,
- int Columns);
+ std::unique_ptr<CCodec_ScanlineDecoder> CreateDecoder(
+ pdfium::span<const uint8_t> src_buf,
+ int width,
+ int height,
+ int nComps,
+ int bpc,
+ int predictor,
+ int Colors,
+ int BitsPerComponent,
+ int Columns);
+
uint32_t FlateOrLZWDecode(bool bLZW,
const uint8_t* src_buf,
uint32_t src_size,
diff --git a/core/fxcodec/codec/ccodec_jpxmodule.cpp b/core/fxcodec/codec/ccodec_jpxmodule.cpp
index ce6a1301fd..28221be340 100644
--- a/core/fxcodec/codec/ccodec_jpxmodule.cpp
+++ b/core/fxcodec/codec/ccodec_jpxmodule.cpp
@@ -644,13 +644,13 @@ CCodec_JpxModule::CCodec_JpxModule() {}
CCodec_JpxModule::~CCodec_JpxModule() {}
std::unique_ptr<CJPX_Decoder> CCodec_JpxModule::CreateDecoder(
- const uint8_t* src_buf,
- uint32_t src_size,
+ pdfium::span<const uint8_t> src_span,
CPDF_ColorSpace* cs) {
auto decoder = pdfium::MakeUnique<CJPX_Decoder>(cs);
- return decoder->Init(pdfium::make_span(src_buf, src_size))
- ? std::move(decoder)
- : nullptr;
+ if (!decoder->Init(src_span))
+ return nullptr;
+
+ return decoder;
}
void CCodec_JpxModule::GetImageInfo(CJPX_Decoder* pDecoder,
diff --git a/core/fxcodec/codec/ccodec_jpxmodule.h b/core/fxcodec/codec/ccodec_jpxmodule.h
index 2a949862ca..2269ef3c62 100644
--- a/core/fxcodec/codec/ccodec_jpxmodule.h
+++ b/core/fxcodec/codec/ccodec_jpxmodule.h
@@ -11,6 +11,7 @@
#include <vector>
#include "core/fxcrt/fx_system.h"
+#include "third_party/base/span.h"
class CJPX_Decoder;
class CPDF_ColorSpace;
@@ -20,9 +21,10 @@ class CCodec_JpxModule {
CCodec_JpxModule();
~CCodec_JpxModule();
- std::unique_ptr<CJPX_Decoder> CreateDecoder(const uint8_t* src_buf,
- uint32_t src_size,
- CPDF_ColorSpace* cs);
+ std::unique_ptr<CJPX_Decoder> CreateDecoder(
+ pdfium::span<const uint8_t> src_span,
+ CPDF_ColorSpace* cs);
+
void GetImageInfo(CJPX_Decoder* pDecoder,
uint32_t* width,
uint32_t* height,
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 16:34:07 +0000