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LibGfx: Put GIFLoader logging behind GIF_DEBUG

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Nico Weber 2020-11-19 20:10:13 -05:00 • committed by Andreas Kling
parent ebfc21509a
commit 967c82c1be
1 changed files with 12 additions and 0 deletions
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12
Libraries/LibGfx/GIFLoader.cpp
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@ -36,6 +36,8 @@
#include <stdio.h> #include <stdio.h>
#include <string.h> #include <string.h>
//#define GIF_DEBUG
namespace Gfx { namespace Gfx {
// Row strides and offsets for each interlace pass. // Row strides and offsets for each interlace pass.
@ -211,8 +213,10 @@ public:
} }
if (m_current_code > m_code_table.size()) { if (m_current_code > m_code_table.size()) {
#ifdef GIF_DEBUG
dbg() << "Corrupted LZW stream, invalid code: " << m_current_code << " at bit index: " dbg() << "Corrupted LZW stream, invalid code: " << m_current_code << " at bit index: "
<< m_current_bit_index << ", code table size: " << m_code_table.size(); << m_current_bit_index << ", code table size: " << m_code_table.size();
#endif
return {}; return {};
} }
@ -341,7 +345,9 @@ static bool decode_frame(GIFLoadingContext& context, size_t frame_index)
while (true) { while (true) {
Optional<u16> code = decoder.next_code(); Optional<u16> code = decoder.next_code();
if (!code.has_value()) { if (!code.has_value()) {
#ifdef GIF_DEBUG
dbg() << "Unexpectedly reached end of gif frame data"; dbg() << "Unexpectedly reached end of gif frame data";
#endif
return false; return false;
} }
@ -479,7 +485,9 @@ static bool load_gif_frame_descriptors(GIFLoadingContext& context)
if (extension_type == 0xF9) { if (extension_type == 0xF9) {
if (sub_block.size() != 4) { if (sub_block.size() != 4) {
#ifdef GIF_DEBUG
dbg() << "Unexpected graphic control size"; dbg() << "Unexpected graphic control size";
#endif
continue; continue;
} }
@ -500,12 +508,16 @@ static bool load_gif_frame_descriptors(GIFLoadingContext& context)
if (extension_type == 0xFF) { if (extension_type == 0xFF) {
if (sub_block.size() != 14) { if (sub_block.size() != 14) {
#ifdef GIF_DEBUG
dbg() << "Unexpected application extension size: " << sub_block.size(); dbg() << "Unexpected application extension size: " << sub_block.size();
#endif
continue; continue;
} }
if (sub_block[11] != 1) { if (sub_block[11] != 1) {
#ifdef GIF_DEBUG
dbg() << "Unexpected application extension format"; dbg() << "Unexpected application extension format";
#endif
continue; continue;
} }