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GUI: fix crash on big endian

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I hope
issue #649
This commit is contained in:
tildearrow 2023-08-12 00:16:06 -05:00
parent 5f2cfd4854
commit f2af2fbe76
1 changed files with 12 additions and 0 deletions
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12
extern/imgui_patched/imgui_draw.cpp vendored
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@ -2224,10 +2224,22 @@ ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float si
ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges) ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
{ {
// workaround for big-endian
#ifdef TA_BIG_ENDIAN
unsigned char* beData=(unsigned char*)IM_ALLOC(compressed_ttf_size);
for (int i=0; i<compressed_ttf_size; i++) {
beData[i]=compressed_ttf_data[i^3];
}
compressed_ttf_data=beData;
#endif
const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data); const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data);
unsigned char* buf_decompressed_data = (unsigned char*)IM_ALLOC(buf_decompressed_size); unsigned char* buf_decompressed_data = (unsigned char*)IM_ALLOC(buf_decompressed_size);
stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size); stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size);
#ifdef TA_BIG_ENDIAN
IM_FREE(beData);
#endif
ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
IM_ASSERT(font_cfg.FontData == NULL); IM_ASSERT(font_cfg.FontData == NULL);
font_cfg.FontDataOwnedByAtlas = true; font_cfg.FontDataOwnedByAtlas = true;