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-rw-r--r--core/fxcodec/codec/fx_codec_icc.cpp38
1 files changed, 9 insertions, 29 deletions
diff --git a/core/fxcodec/codec/fx_codec_icc.cpp b/core/fxcodec/codec/fx_codec_icc.cpp
index 085452223d..f77c8507bf 100644
--- a/core/fxcodec/codec/fx_codec_icc.cpp
+++ b/core/fxcodec/codec/fx_codec_icc.cpp
@@ -8,12 +8,6 @@
#include "core/fxcodec/fx_codec.h"
#include "third_party/lcms2-2.6/include/lcms2.h"
-const uint32_t N_COMPONENT_LAB = 3;
-const uint32_t N_COMPONENT_GRAY = 1;
-const uint32_t N_COMPONENT_RGB = 3;
-const uint32_t N_COMPONENT_CMYK = 4;
-const uint32_t N_COMPONENT_DEFAULT = 3;
-
struct CLcmsCmm {
cmsHTRANSFORM m_hTransform;
int m_nSrcComponents;
@@ -57,28 +51,6 @@ bool CheckComponents(cmsColorSpaceSignature cs, int nComponents, bool bDst) {
return true;
}
-uint32_t GetCSComponents(cmsColorSpaceSignature cs) {
- uint32_t components;
- switch (cs) {
- case cmsSigLabData:
- components = N_COMPONENT_LAB;
- break;
- case cmsSigGrayData:
- components = N_COMPONENT_GRAY;
- break;
- case cmsSigRgbData:
- components = N_COMPONENT_RGB;
- break;
- case cmsSigCmykData:
- components = N_COMPONENT_CMYK;
- break;
- default:
- components = N_COMPONENT_DEFAULT;
- break;
- }
- return components;
-}
-
void* IccLib_CreateTransform(const unsigned char* pSrcProfileData,
uint32_t dwSrcProfileSize,
uint32_t& nSrcComponents,
@@ -108,7 +80,15 @@ void* IccLib_CreateTransform(const unsigned char* pSrcProfileData,
int srcFormat;
bool bLab = false;
cmsColorSpaceSignature srcCS = cmsGetColorSpace(srcProfile);
- nSrcComponents = GetCSComponents(srcCS);
+
+ nSrcComponents = cmsChannelsOf(srcCS);
+ // According to PDF spec, number of components must be 1, 3, or 4.
+ if (nSrcComponents != 1 && nSrcComponents != 3 && nSrcComponents != 4) {
+ cmsCloseProfile(srcProfile);
+ cmsCloseProfile(dstProfile);
+ return nullptr;
+ }
+
if (srcCS == cmsSigLabData) {
srcFormat =
COLORSPACE_SH(PT_Lab) | CHANNELS_SH(nSrcComponents) | BYTES_SH(0);