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[client] overlay: add ImGui support for non-latin characters

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This commit is contained in:
Geoffrey McRae
2026-07-30 12:39:47 +10:00
parent f3155647d2
commit 4f02eda913
9 changed files with 374 additions and 21 deletions
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32
client/src/main.c
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@@ -269,12 +269,8 @@ static int renderThread(void * unused)
};
g_state.io->FontGlobalScale = 1.0f / g_state.windowScale;
ImFontAtlas_Clear(g_state.io->Fonts);
ImFontAtlas_AddFontFromFileTTF(g_state.io->Fonts, g_state.fontName,
g_params.uiSize * g_state.windowScale, NULL, g_state.fontRange.Data);
g_state.fontLarge = ImFontAtlas_AddFontFromFileTTF(g_state.io->Fonts,
g_state.fontName, 1.3f * g_params.uiSize * g_state.windowScale, NULL, g_state.fontRange.Data);
if (!ImFontAtlas_Build(g_state.io->Fonts))
if (!util_buildUIFontAtlas(g_state.io->Fonts,
g_params.uiSize * g_state.windowScale, &g_state.fontLarge))
DEBUG_FATAL("Failed to build font atlas: %s (%s)", g_params.uiFont, g_state.fontName);
if (g_state.lgr)
@@ -1103,22 +1099,19 @@ static int lg_run(void)
g_state.io->BackendFlags |= ImGuiBackendFlags_HasMouseCursors;
g_state.windowScale = 1.0;
if (util_initUIFonts())
if (!util_initUIFonts())
{
g_state.fontName = util_getUIFont(g_params.uiFont);
DEBUG_INFO("Using font: %s", g_state.fontName);
DEBUG_ERROR("Failed to initialize UI fonts");
return -1;
}
ImVector_ImWchar_Init(&g_state.fontRange);
ImFontGlyphRangesBuilder * rangeBuilder =
ImFontGlyphRangesBuilder_ImFontGlyphRangesBuilder();
ImFontGlyphRangesBuilder_AddRanges(rangeBuilder, (ImWchar[]) {
0x0020, 0x00FF, // Basic Latin + Latin Supplement
0x2190, 0x2193, // four directional arrows
0,
});
ImFontGlyphRangesBuilder_BuildRanges(rangeBuilder, &g_state.fontRange);
ImFontGlyphRangesBuilder_destroy(rangeBuilder);
g_state.fontName = util_getUIFont(g_params.uiFont);
if (!g_state.fontName)
{
DEBUG_ERROR("Failed to load UI font: %s", g_params.uiFont);
return -1;
}
DEBUG_INFO("Using font: %s", g_state.fontName);
// initialize metrics ringbuffers
g_state.renderTimings = ringbuffer_new(256, sizeof(float));
@@ -1612,7 +1605,6 @@ static void lg_shutdown(void)
ringbuffer_free(&g_state.renderDuration);
free(g_state.fontName);
ImVector_ImWchar_UnInit(&g_state.fontRange);
igDestroyContext(NULL);
free(g_state.imGuiIni);
}