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Update imgui_draw.cpp

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Fix Decode85 on big-endian systems.
This commit is contained in:
osman-brian 2015-10-01 14:57:31 -04:00
parent c1983d5c3f
commit 69e6f299f3
1 changed files with 12 additions and 2 deletions
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14
imgui_draw.cpp
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@ -1079,7 +1079,17 @@ static unsigned int stb_decompress_length(unsigned char *input);
static unsigned int stb_decompress(unsigned char *output, unsigned char *i, unsigned int length); static unsigned int stb_decompress(unsigned char *output, unsigned char *i, unsigned int length);
static const char* GetDefaultCompressedFontDataTTFBase85(); static const char* GetDefaultCompressedFontDataTTFBase85();
static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; } static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; }
static void Decode85(const unsigned char* src, unsigned int* dst) { for (; *src; src += 5) *dst++ = Decode85Byte(src[0]) + 85*(Decode85Byte(src[1]) + 85*(Decode85Byte(src[2]) + 85*(Decode85Byte(src[3]) + 85*Decode85Byte(src[4])))); } static void Decode85(const unsigned char* src, unsigned char* dst)
{
for (; *src; src += 5)
{
unsigned int tmp = Decode85Byte(src[0]) + 85*(Decode85Byte(src[1]) + 85*(Decode85Byte(src[2]) + 85*(Decode85Byte(src[3]) + 85*Decode85Byte(src[4]))));
*dst++ = ((tmp >> 0) & 0xFF);
*dst++ = ((tmp >> 8) & 0xFF);
*dst++ = ((tmp >> 16) & 0xFF);
*dst++ = ((tmp >> 24) & 0xFF);
}
}
// Load embedded ProggyClean.ttf at size 13, disable oversampling // Load embedded ProggyClean.ttf at size 13, disable oversampling
ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template) ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template)
@ -1146,7 +1156,7 @@ ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed
{ {
int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4; int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4;
void* compressed_ttf = ImGui::MemAlloc(compressed_ttf_size); void* compressed_ttf = ImGui::MemAlloc(compressed_ttf_size);
Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned int*)compressed_ttf); Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf);
ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges); ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges);
ImGui::MemFree(compressed_ttf); ImGui::MemFree(compressed_ttf);
return font; return font;