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ImFont: Store the texture surface used to get an idea of how costly each font is.

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This commit is contained in:
omar
2017-03-17 21:29:57 +01:00
parent b84eac53d8
commit e10ceebd36
3 changed files with 7 additions and 2 deletions
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5
imgui_draw.cpp
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@ -1386,7 +1386,7 @@ bool ImFontAtlas::Build()
{
ImFontConfig& cfg = ConfigData[input_i];
ImFontTempBuildData& tmp = tmp_array[input_i];
ImFont* dst_font = cfg.DstFont;
ImFont* dst_font = cfg.DstFont; // We can have multiple input fonts writing into a same destination font (when using MergeMode=true)
float font_scale = stbtt_ScaleForPixelHeight(&tmp.FontInfo, cfg.SizePixels);
int unscaled_ascent, unscaled_descent, unscaled_line_gap;
@ -1403,6 +1403,7 @@ bool ImFontAtlas::Build()
dst_font->Ascent = ascent;
dst_font->Descent = descent;
dst_font->Glyphs.resize(0);
dst_font->MetricsTotalSurface = 0;
}
dst_font->ConfigDataCount++;
float off_y = (cfg.MergeMode && cfg.MergeGlyphCenterV) ? (ascent - dst_font->Ascent) * 0.5f : 0.0f;
@ -1435,6 +1436,7 @@ bool ImFontAtlas::Build()
glyph.XAdvance = (pc.xadvance + cfg.GlyphExtraSpacing.x); // Bake spacing into XAdvance
if (cfg.PixelSnapH)
glyph.XAdvance = (float)(int)(glyph.XAdvance + 0.5f);
dst_font->MetricsTotalSurface += (int)(glyph.X1 - glyph.X0 + 1.99f) * (int)(glyph.Y1 - glyph.Y0 + 1.99f); // +1 to account for average padding, +0.99 to round
}
}
cfg.DstFont->BuildLookupTable();
@ -1703,6 +1705,7 @@ void ImFont::Clear()
ConfigData = NULL;
ContainerAtlas = NULL;
Ascent = Descent = 0.0f;
MetricsTotalSurface = 0;
}
void ImFont::BuildLookupTable()