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-rw-r--r--core/fxcodec/codec/fx_codec_jpeg.cpp7
-rw-r--r--core/fxcodec/codec/fx_codec_progress.cpp13
2 files changed, 14 insertions, 6 deletions
diff --git a/core/fxcodec/codec/fx_codec_jpeg.cpp b/core/fxcodec/codec/fx_codec_jpeg.cpp
index f7cf291bbf..cf501a99d1 100644
--- a/core/fxcodec/codec/fx_codec_jpeg.cpp
+++ b/core/fxcodec/codec/fx_codec_jpeg.cpp
@@ -417,7 +417,7 @@ CJpegContext::~CJpegContext() {
}
std::unique_ptr<CCodec_JpegModule::Context> CCodec_JpegModule::Start() {
- // Use ordinary pointer until past the fear of a longjump.
+ // Use ordinary pointer until past the possibility of a longjump.
auto* pContext = new CJpegContext();
if (setjmp(pContext->m_JumpMark) == -1)
return nullptr;
@@ -486,10 +486,7 @@ bool CCodec_JpegModule::StartScanline(Context* pContext, int down_scale) {
bool CCodec_JpegModule::ReadScanline(Context* pContext,
unsigned char* dest_buf) {
auto* ctx = static_cast<CJpegContext*>(pContext);
- if (setjmp(ctx->m_JumpMark) == -1)
- return false;
-
- int nlines = jpeg_read_scanlines(&ctx->m_Info, &dest_buf, 1);
+ unsigned int nlines = jpeg_read_scanlines(&ctx->m_Info, &dest_buf, 1);
return nlines == 1;
}
diff --git a/core/fxcodec/codec/fx_codec_progress.cpp b/core/fxcodec/codec/fx_codec_progress.cpp
index c3005bca95..36e22e9f85 100644
--- a/core/fxcodec/codec/fx_codec_progress.cpp
+++ b/core/fxcodec/codec/fx_codec_progress.cpp
@@ -1879,8 +1879,11 @@ FXCODEC_STATUS CCodec_ProgressiveDecoder::StartDecode(
GetDownScale(down_scale);
// Setting jump marker before calling StartScanLine, since a longjmp to
// the marker indicates a fatal error.
- if (setjmp(*m_pJpegContext->GetJumpMark()) == -1)
+ if (setjmp(*m_pJpegContext->GetJumpMark()) == -1) {
+ m_pJpegContext.reset();
+ m_status = FXCODEC_STATUS_ERROR;
return FXCODEC_STATUS_ERROR;
+ }
CCodec_JpegModule* pJpegModule = m_pCodecMgr->GetJpegModule();
bool startStatus =
@@ -2023,6 +2026,14 @@ FXCODEC_STATUS CCodec_ProgressiveDecoder::ContinueDecode() {
switch (m_imagType) {
case FXCODEC_IMAGE_JPG: {
CCodec_JpegModule* pJpegModule = m_pCodecMgr->GetJpegModule();
+ // Setting jump marker before calling ReadScanLine, since a longjmp to
+ // the marker indicates a fatal error.
+ if (setjmp(*m_pJpegContext->GetJumpMark()) == -1) {
+ m_pJpegContext.reset();
+ m_status = FXCODEC_STATUS_ERROR;
+ return FXCODEC_STATUS_ERROR;
+ }
+
while (true) {
bool readRes =
pJpegModule->ReadScanline(m_pJpegContext.get(), m_pDecodeBuf);