Index: core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp |
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp |
index 7e80f75269dfe4af41f9f5dae0275ea4fef434ec..1c54391cd3ef3358ae59708c057e72fef34ca8bb 100644 |
--- a/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp |
+++ b/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp |
@@ -919,52 +919,61 @@ FX_DWORD CPDF_DIBSource::GetValidBpc() const |
} |
} |
} |
+ if (bpc != 1 && bpc != 2 && bpc != 4 && bpc != 8 && bpc != 12 && bpc != 16) { |
+ 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 |
{ |
- int max_data = (1 << m_bpc) - 1; |
+ FX_DWORD bpc = GetValidBpc(); |
+ if (bpc == 0) { |
+ return; |
+ } |
+ int max_data = (1 << bpc) - 1; |
if (m_bDefaultDecode) { |
if (m_Family == PDFCS_DEVICERGB || m_Family == PDFCS_CALRGB) { |
- if (m_bpc == 16) { |
- FX_LPCBYTE src_pos = src_scan; |
- for (int col = 0; col < m_Width; col ++) { |
- *dest_scan++ = src_pos[4]; |
- *dest_scan++ = src_pos[2]; |
- *dest_scan++ = *src_pos; |
- src_pos += 6; |
- } |
- } else if (m_bpc == 8) { |
- FX_LPCBYTE src_pos = src_scan; |
- for (int column = 0; column < m_Width; column ++) { |
- *dest_scan++ = src_pos[2]; |
- *dest_scan++ = src_pos[1]; |
- *dest_scan++ = *src_pos; |
- src_pos += 3; |
- } |
- } else { |
- int src_bit_pos = 0; |
- int dest_byte_pos = 0; |
- 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; |
- 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; |
- R = NORMALCOLOR_MAX(R, max_data); |
- G = NORMALCOLOR_MAX(G, max_data); |
- B = NORMALCOLOR_MAX(B, max_data); |
- dest_scan[dest_byte_pos] = B * 255 / max_data; |
- dest_scan[dest_byte_pos + 1] = G * 255 / max_data; |
- dest_scan[dest_byte_pos + 2] = R * 255 / max_data; |
- dest_byte_pos += 3; |
+ FX_LPCBYTE src_pos = src_scan; |
+ switch (bpc){ |
Tom Sepez
2014/08/01 21:10:48
nit: space after )
Bo Xu
2014/08/01 23:13:52
Done.
|
+ case 16: |
+ for (int col = 0; col < m_Width; col ++) { |
+ *dest_scan++ = src_pos[4]; |
+ *dest_scan++ = src_pos[2]; |
+ *dest_scan++ = *src_pos; |
+ src_pos += 6; |
+ } |
+ break; |
+ case 8: |
+ for (int column = 0; column < m_Width; column ++) { |
+ *dest_scan++ = src_pos[2]; |
+ *dest_scan++ = src_pos[1]; |
+ *dest_scan++ = *src_pos; |
+ src_pos += 3; |
+ } |
+ break; |
+ default: |
+ 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; |
+ R = NORMALCOLOR_MAX(R, max_data); |
+ G = NORMALCOLOR_MAX(G, max_data); |
+ B = NORMALCOLOR_MAX(B, max_data); |
+ dest_scan[dest_byte_pos] = B * 255 / max_data; |
+ dest_scan[dest_byte_pos + 1] = G * 255 / max_data; |
+ dest_scan[dest_byte_pos + 2] = R * 255 / max_data; |
+ dest_byte_pos += 3; |
} |
Tom Sepez
2014/08/01 21:10:48
nit: some picky people might insist on a break her
Bo Xu
2014/08/01 23:13:52
Done.
|
} |
return; |
- } else if (m_bpc == 8) { |
+ } else if (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); |
@@ -974,7 +983,7 @@ void CPDF_DIBSource::TranslateScanline24bpp(FX_LPBYTE dest_scan, FX_LPCBYTE src_ |
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 (m_bpc == 8) { |
+ if (bpc == 8) { |
int src_byte_pos = 0; |
int dest_byte_pos = 0; |
for (int column = 0; column < m_Width; column ++) { |