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Fonts: fixed AddCustomRect() not being packed with TexGlyphPadding + not accounted in surface area. (#8107)

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ocornut 2024-11-29 18:46:17 +01:00
parent 9b26743c6b
commit 19a1f2a5d2
4 changed files with 19 additions and 11 deletions
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4
misc/freetype/imgui_freetype.cpp
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@ -573,6 +573,7 @@ bool ImFontAtlasBuildWithFreeTypeEx(FT_Library ft_library, ImFontAtlas* atlas, u
// 8. Render/rasterize font characters into the texture
int total_surface = 0;
int buf_rects_out_n = 0;
const int pack_padding = atlas->TexGlyphPadding;
for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
{
ImFontBuildSrcDataFT& src_tmp = src_tmp_array[src_i];
@ -590,7 +591,6 @@ bool ImFontAtlasBuildWithFreeTypeEx(FT_Library ft_library, ImFontAtlas* atlas, u
ImFontAtlasBuildMultiplyCalcLookupTable(multiply_table, cfg.RasterizerMultiply);
// Gather the sizes of all rectangles we will need to pack
const int padding = atlas->TexGlyphPadding;
for (int glyph_i = 0; glyph_i < src_tmp.GlyphsList.Size; glyph_i++)
{
ImFontBuildSrcGlyphFT& src_glyph = src_tmp.GlyphsList[glyph_i];
@ -623,6 +623,8 @@ bool ImFontAtlasBuildWithFreeTypeEx(FT_Library ft_library, ImFontAtlas* atlas, u
total_surface += src_tmp.Rects[glyph_i].w * src_tmp.Rects[glyph_i].h;
}
}
for (int i = 0; i < atlas->CustomRects.Size; i++)
total_surface += (atlas->CustomRects[i].Width + pack_padding) * (atlas->CustomRects[i].Height + pack_padding);
// We need a width for the skyline algorithm, any width!
// The exact width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height.