820900 - Memory used by cairo's _render_glyph_outline is not reported

Status: NEW

(Core :: Graphics, defect)

Description

[Justin Lebar (not reading bugmail)]

The DMD report in attachment 691386 [details] shows the following set of unreported blocks in the main process with the B2G gallery app open and in the foreground.

> Unreported: ~30 blocks in block group 12 of 724
>  ~139,216 bytes (~113,288 requested / ~25,928 slop)
>  0.51% of the heap (22.83% cumulative);  1.03% of unreported (46.71% cumulative)
>  Allocated at
>    calloc /Users/jlebar/code/moz/ff-git/src/memory/build/replace_malloc.c:182 (0x4024e250 libmozglue.so+0x4250)
>    _render_glyph_outline /Users/jlebar/code/moz/ff-git/src/gfx/cairo/cairo/src/cairo-ft-font.c:1395 (0x41a61698 libxul.so+0xb4d698)
>    _cairo_scaled_glyph_lookup /Users/jlebar/code/moz/ff-git/src/gfx/cairo/cairo/src/cairo-scaled-font.c:2836 (0x41a47468 libxul.so+0xb33468)
>    _composite_glyphs /Users/jlebar/code/moz/ff-git/src/gfx/cairo/cairo/src/cairo-image-surface.c:3965 (0x41a37a0a libxul.so+0xb23a0a)
>    _clip_and_composite /Users/jlebar/code/moz/ff-git/src/gfx/cairo/cairo/src/cairo-image-surface.c:2307 (0x41a3875a libxul.so+0xb2475a)
>    _cairo_image_surface_glyphs /Users/jlebar/code/moz/ff-git/src/gfx/cairo/cairo/src/cairo-image-surface.c:4076 (0x41a389f4 libxul.so+0xb249f4)
>    _cairo_surface_show_text_glyphs /Users/jlebar/code/moz/ff-git/src/gfx/cairo/cairo/src/cairo-surface.c:2784 (0x41a4b8f8 libxul.so+0xb378f8)
>    _cairo_gstate_show_text_glyphs /Users/jlebar/code/moz/ff-git/src/gfx/cairo/cairo/src/cairo-gstate.c:1992 (0x41a3388c libxul.so+0xb1f88c)
>    _moz_cairo_show_glyphs /Users/jlebar/code/moz/ff-git/src/gfx/cairo/cairo/src/cairo.c:3523 (0x41a25570 libxul.so+0xb11570)
>    GlyphBuffer::Flush(_cairo*, gfxFont::DrawMode, bool, gfxTextObjectPaint*, gfxMatrix const&, bool) /Users/jlebar/code/moz/ff-git/src/gfx/thebes/gfxFont.cpp:1565 (0x419b2ef4 libxul.so+0xa9eef4)
>    gfxFont::Draw(gfxTextRun*, unsigned int, unsigned int, gfxContext*, gfxFont::DrawMode, gfxPoint*, gfxFont::Spacing*, gfxTextObjectPaint*) /Users/jlebar/code/moz/ff-git/src/gfx/thebes/gfxFont.cpp:1932 (0x419b70d6 libxul.so+0xaa30d6)
>    gfxTextRun::DrawGlyphs(gfxFont*, gfxContext*, gfxFont::DrawMode, gfxPoint*, gfxTextObjectPaint*, unsigned int, unsigned int, gfxTextRun::PropertyProvider*, unsigned int, unsigned int) /Users/jlebar/code/moz/ff-git/src/gfx/thebes/gfxFont.cpp:4779 (0x419b0fac libxul.so+0xa9cfac)
>    gfxTextRun::Draw(gfxContext*, gfxPoint, gfxFont::DrawMode, unsigned int, unsigned int, gfxTextRun::PropertyProvider*, double*, gfxTextObjectPaint*, gfxTextRun::DrawCallbacks*) /Users/jlebar/code/moz/ff-git/src/gfx/thebes/gfxFont.cpp:4982 (0x419b1ecc libxul.so+0xa9decc)
>    DrawTextRun /Users/jlebar/code/moz/ff-git/src/layout/generic/nsTextFrameThebes.cpp:5917 (0x412fdeae libxul.so+0x3e9eae)
>    nsTextFrame::DrawTextRun(gfxContext*, gfxPoint const&, unsigned int, unsigned int, PropertyProvider&, unsigned int, double&, bool, nsTextFrame::DrawPathCallbacks*) /Users/jlebar/code/moz/ff-git/src/layout/generic/nsTextFrameThebes.cpp:5932 (0x412feeb4 libxul.so+0x3eaeb4)
>    nsTextFrame::DrawText(gfxContext*, gfxRect const&, gfxPoint const&, gfxPoint const&, unsigned int, unsigned int, PropertyProvider&, nsTextPaintStyle const&, unsigned int, nsCharClipDisplayItem::ClipEdges const&, double&, bool, unsigned int const*, nsTextFrame::DrawPathCallbacks*) /Users/jlebar/code/moz/ff-git/src/layout/generic/nsTextFrameThebes.cpp:6070 (0x41302ce6 libxul.so+0x3eece6)
>    ~nsRefPtr /Users/jlebar/code/moz/B2G/objdir-gecko/dist/include/nsAutoPtr.h:875 (0x41302ee0 libxul.so+0x3eeee0)
>    nsTextFrame::PaintText(nsRenderingContext*, nsPoint, nsRect const&, nsCharClipDisplayItem const&, nsTextFrame::DrawPathCallbacks*) /Users/jlebar/code/moz/ff-git/src/layout/generic/nsTextFrameThebes.cpp:5883 (0x41303924 libxul.so+0x3ef924)
>    ~gfxContextAutoDisableSubpixelAntialiasing /Users/jlebar/code/moz/B2G/objdir-gecko/dist/include/gfxContext.h:930 (0x41303a36 libxul.so+0x3efa36)
>    mozilla::FrameLayerBuilder::DrawThebesLayer(mozilla::layers::ThebesLayer*, gfxContext*, nsIntRegion const&, nsIntRegion const&, void*) /Users/jlebar/code/moz/ff-git/src/layout/base/FrameLayerBuilder.cpp:3382 (0x41275d02 libxul.so+0x361d02)
>    ~nsRegion /Users/jlebar/code/moz/B2G/objdir-gecko/dist/include/nsRegion.h:75 (0x419ce8be libxul.so+0xaba8be)
>    mozilla::layers::BasicLayerManager::PaintSelfOrChildren(mozilla::layers::PaintContext&, gfxContext*) /Users/jlebar/code/moz/ff-git/src/gfx/layers/basic/BasicLayerManager.cpp:829 (0x419c8cf4 libxul.so+0xab4cf4)
>    mozilla::layers::BasicLayerManager::PaintLayer(gfxContext*, mozilla::layers::Layer*, void (*)(mozilla::layers::ThebesLayer*, gfxContext*, nsIntRegion const&, nsIntRegion const&, void*), void*, mozilla::layers::ReadbackProcessor*) /Users/jlebar/code/moz/ff-git/src/gfx/layers/basic/BasicLayerManager.cpp:954 (0x419c91c6 libxul.so+0xab51c6)
>    mozilla::layers::BasicLayerManager::PaintSelfOrChildren(mozilla::layers::PaintContext&, gfxContext*) /Users/jlebar/code/moz/ff-git/src/gfx/layers/basic/BasicLayerManager.cpp:845 (0x419c8d58 libxul.so+0xab4d58)