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-rw-r--r--core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp39
-rw-r--r--core/src/fpdfapi/fpdf_render/render_int.h2
2 files changed, 21 insertions, 20 deletions
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp
index 98efec16b9..81cff01f50 100644
--- a/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp
+++ b/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp
@@ -911,7 +911,7 @@ void CPDF_DIBSource::LoadPalette()
}
}
}
-FX_DWORD CPDF_DIBSource::GetValidBpp() const
+FX_DWORD CPDF_DIBSource::GetValidBpc() const
{
FX_DWORD bpc = m_bpc;
CPDF_Object * pFilter = m_pDict ? m_pDict->GetElementValue(FX_BSTRC("Filter")) : NULL;
@@ -965,7 +965,7 @@ void CPDF_DIBSource::TranslateScanline24bpp(FX_LPBYTE dest_scan, FX_LPCBYTE src_
} else {
int src_bit_pos = 0;
int dest_byte_pos = 0;
- FX_DWORD bpc = GetValidBpp();
+ FX_DWORD bpc = GetValidBpc();
for (int column = 0; column < m_Width; column ++) {
int R = _GetBits8(src_scan, src_bit_pos, bpc);
src_bit_pos += bpc;
@@ -1021,7 +1021,7 @@ void CPDF_DIBSource::TranslateScanline24bpp(FX_LPBYTE dest_scan, FX_LPCBYTE src_
} else {
int src_bit_pos = 0;
int dest_byte_pos = 0;
- FX_DWORD bpc = GetValidBpp();
+ 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);
@@ -1184,8 +1184,9 @@ FX_BOOL CPDF_DIBSource::SkipToScanline(int line, IFX_Pause* pPause) const
void CPDF_DIBSource::DownSampleScanline(int line, FX_LPBYTE dest_scan, int dest_bpp,
int dest_width, FX_BOOL bFlipX, int clip_left, int clip_width) const
{
+ FX_DWORD bpc = GetValidBpc();
FX_DWORD src_width = m_Width;
- FX_DWORD src_pitch = (src_width * m_bpc * m_nComponents + 7) / 8;
+ FX_DWORD src_pitch = (src_width * bpc * m_nComponents + 7) / 8;
FX_LPCBYTE pSrcLine = NULL;
if (m_pCachedBitmap) {
pSrcLine = m_pCachedBitmap->GetScanline(line);
@@ -1196,14 +1197,14 @@ void CPDF_DIBSource::DownSampleScanline(int line, FX_LPBYTE dest_scan, int dest_
pSrcLine = m_pStreamAcc->GetData() + line * src_pitch;
}
}
- int orig_Bpp = m_bpc * m_nComponents / 8;
+ int orig_Bpp = bpc * m_nComponents / 8;
int dest_Bpp = dest_bpp / 8;
if (pSrcLine == NULL) {
FXSYS_memset32(dest_scan, 0xff, dest_Bpp * clip_width);
return;
}
CFX_FixedBufGrow<FX_BYTE, 128> temp(orig_Bpp);
- if (m_bpc * m_nComponents == 1) {
+ if (bpc * m_nComponents == 1) {
FX_DWORD set_argb = (FX_DWORD) - 1, reset_argb = 0;
if (m_bImageMask) {
if (m_bDefaultDecode) {
@@ -1271,15 +1272,15 @@ void CPDF_DIBSource::DownSampleScanline(int line, FX_LPBYTE dest_scan, int dest_
}
}
return;
- } else if (m_bpc * m_nComponents <= 8) {
- if (m_bpc < 8) {
+ } else if (bpc * m_nComponents <= 8) {
+ if (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, m_bpc);
- color_index |= data << (color * m_bpc);
- src_bit_pos += m_bpc;
+ int data = _GetBits8(pSrcLine, src_bit_pos, bpc);
+ color_index |= data << (color * bpc);
+ src_bit_pos += bpc;
}
m_pLineBuf[col] = color_index;
}
@@ -1328,14 +1329,14 @@ void CPDF_DIBSource::DownSampleScanline(int line, FX_LPBYTE dest_scan, int dest_
} else {
int last_src_x = -1;
FX_ARGB last_argb;
- FX_FLOAT orig_Not8Bpp = (FX_FLOAT)m_bpc * (FX_FLOAT)m_nComponents / 8.0f;
- FX_FLOAT unit_To8Bpc = 255.0f / ((1 << m_bpc) - 1);
+ FX_FLOAT orig_Not8Bpp = (FX_FLOAT)bpc * (FX_FLOAT)m_nComponents / 8.0f;
+ FX_FLOAT unit_To8Bpc = 255.0f / ((1 << 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 (m_bpc % 8 == 0) {
+ if (bpc % 8 == 0) {
pSrcPixel = pSrcLine + src_x * orig_Bpp;
} else {
pSrcPixel = pSrcLine + (int)(src_x * orig_Not8Bpp);
@@ -1354,15 +1355,15 @@ void CPDF_DIBSource::DownSampleScanline(int line, FX_LPBYTE dest_scan, int dest_
}
m_pColorSpace->TranslateImageLine(color, temp, 1, 0, 0, m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && m_Family == PDFCS_DEVICECMYK);
} else {
- if (m_bpc < 8) {
+ if (bpc < 8) {
int src_bit_pos = 0;
if (src_x % 2) {
src_bit_pos = 4;
}
- int value = (1 << m_bpc) - 1;
+ int value = (1 << bpc) - 1;
for (FX_DWORD i = 0; i < m_nComponents; i ++) {
- temp[i] = (FX_BYTE)(_GetBits8(pSrcPixel, src_bit_pos, m_bpc) * unit_To8Bpc);
- src_bit_pos += m_bpc;
+ temp[i] = (FX_BYTE)(_GetBits8(pSrcPixel, src_bit_pos, bpc) * unit_To8Bpc);
+ src_bit_pos += bpc;
}
m_pColorSpace->TranslateImageLine(color, temp, 1, 0, 0, m_bLoadMask && m_GroupFamily == PDFCS_DEVICECMYK && m_Family == PDFCS_DEVICECMYK);
} else {
@@ -1375,7 +1376,7 @@ void CPDF_DIBSource::DownSampleScanline(int line, FX_LPBYTE dest_scan, int dest_
}
if (m_bColorKey) {
int alpha = 0xff;
- if (m_nComponents == 3 && m_bpc == 8) {
+ if (m_nComponents == 3 && bpc == 8) {
alpha = (pSrcPixel[0] < m_pCompData[0].m_ColorKeyMin ||
pSrcPixel[0] > m_pCompData[0].m_ColorKeyMax ||
pSrcPixel[1] < m_pCompData[1].m_ColorKeyMin ||
diff --git a/core/src/fpdfapi/fpdf_render/render_int.h b/core/src/fpdfapi/fpdf_render/render_int.h
index e8e8ea4651..fda3666871 100644
--- a/core/src/fpdfapi/fpdf_render/render_int.h
+++ b/core/src/fpdfapi/fpdf_render/render_int.h
@@ -419,7 +419,7 @@ protected:
void LoadPalette();
FX_BOOL CreateDecoder();
void TranslateScanline24bpp(FX_LPBYTE dest_scan, FX_LPCBYTE src_scan) const;
- FX_DWORD GetValidBpp() const;
+ FX_DWORD GetValidBpc() const;
CPDF_Document* m_pDocument;
const CPDF_Stream* m_pStream;
CPDF_StreamAcc* m_pStreamAcc;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 15:34:47 +0000