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author | art-snake <art-snake@yandex-team.ru> | 2016-09-15 14:11:09 -0700 |
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committer | Commit bot <commit-bot@chromium.org> | 2016-09-15 14:11:10 -0700 |
commit | cde5101eb15b24519e89fa500fe37038bc8e2201 (patch) | |
tree | ce3f6e9215769e4e1494479740cc4eaf957a109b /core/fpdfapi/fpdf_render/fpdf_render_text.cpp | |
parent | d9871435eb7cea00a173baf780934f9d3525329a (diff) | |
download | pdfium-cde5101eb15b24519e89fa500fe37038bc8e2201.tar.xz |
Fix memory leaking on ClosePage.chromium/2862
CFX_FontCache refactoring:
after this CL: Only one global CFX_FontCache used. Any cached items from it, are released, when its are not used.
BUG=79367,48791
The fonts was not cleared after unloading pages.
Test pdf:
http://www.nasa.gov/pdf/750614main_NASA_FY_2014_Budget_Estimates-508.pdf
For this file, we have ~5 fonts per page, which equal ~1 Mb per page.
In this PDF we have 670 pages, as result after slow scrolling(reading) full document we have ~600 Mb fonts data in memory.
memory usage of PDF Plugin:
before this CL: ~660 Mb
after this CL: ~100 Mb
Review-Url: https://codereview.chromium.org/2158023002
Diffstat (limited to 'core/fpdfapi/fpdf_render/fpdf_render_text.cpp')
-rw-r--r-- | core/fpdfapi/fpdf_render/fpdf_render_text.cpp | 38 |
1 files changed, 8 insertions, 30 deletions
diff --git a/core/fpdfapi/fpdf_render/fpdf_render_text.cpp b/core/fpdfapi/fpdf_render/fpdf_render_text.cpp index 265948f1d5..991b57ab7f 100644 --- a/core/fpdfapi/fpdf_render/fpdf_render_text.cpp +++ b/core/fpdfapi/fpdf_render/fpdf_render_text.cpp @@ -25,7 +25,6 @@ #include "core/fpdfapi/fpdf_render/include/cpdf_textrenderer.h" #include "core/fxge/include/cfx_autofontcache.h" #include "core/fxge/include/cfx_facecache.h" -#include "core/fxge/include/cfx_fontcache.h" #include "core/fxge/include/cfx_fxgedevice.h" #include "core/fxge/include/cfx_gemodule.h" #include "core/fxge/include/cfx_graphstatedata.h" @@ -435,9 +434,6 @@ FX_BOOL CPDF_TextRenderer::DrawTextPath(CFX_RenderDevice* pDevice, FX_ARGB stroke_argb, CFX_PathData* pClippingPath, int nFlag) { - CFX_FontCache* pCache = - pFont->m_pDocument ? pFont->m_pDocument->GetRenderData()->GetFontCache() - : nullptr; CPDF_CharPosList CharPosList; CharPosList.Load(nChars, pCharCodes, pCharPos, pFont, font_size); if (CharPosList.m_nChars == 0) @@ -452,10 +448,10 @@ FX_BOOL CPDF_TextRenderer::DrawTextPath(CFX_RenderDevice* pDevice, auto* font = fontPosition == -1 ? &pFont->m_Font : pFont->m_FontFallbacks[fontPosition].get(); - if (!pDevice->DrawTextPath( - i - startIndex, CharPosList.m_pCharPos + startIndex, font, pCache, - font_size, pText2User, pUser2Device, pGraphState, fill_argb, - stroke_argb, pClippingPath, nFlag)) { + if (!pDevice->DrawTextPath(i - startIndex, + CharPosList.m_pCharPos + startIndex, font, + font_size, pText2User, pUser2Device, pGraphState, + fill_argb, stroke_argb, pClippingPath, nFlag)) { bDraw = false; } fontPosition = curFontPosition; @@ -464,7 +460,7 @@ FX_BOOL CPDF_TextRenderer::DrawTextPath(CFX_RenderDevice* pDevice, auto* font = fontPosition == -1 ? &pFont->m_Font : pFont->m_FontFallbacks[fontPosition].get(); if (!pDevice->DrawTextPath(CharPosList.m_nChars - startIndex, - CharPosList.m_pCharPos + startIndex, font, pCache, + CharPosList.m_pCharPos + startIndex, font, font_size, pText2User, pUser2Device, pGraphState, fill_argb, stroke_argb, pClippingPath, nFlag)) { bDraw = false; @@ -540,9 +536,6 @@ FX_BOOL CPDF_TextRenderer::DrawNormalText(CFX_RenderDevice* pDevice, const CFX_Matrix* pText2Device, FX_ARGB fill_argb, const CPDF_RenderOptions* pOptions) { - CFX_FontCache* pCache = - pFont->m_pDocument ? pFont->m_pDocument->GetRenderData()->GetFontCache() - : nullptr; CPDF_CharPosList CharPosList; CharPosList.Load(nChars, pCharCodes, pCharPos, pFont, font_size); if (CharPosList.m_nChars == 0) @@ -585,7 +578,7 @@ FX_BOOL CPDF_TextRenderer::DrawNormalText(CFX_RenderDevice* pDevice, ? &pFont->m_Font : pFont->m_FontFallbacks[fontPosition].get(); if (!pDevice->DrawNormalText( - i - startIndex, CharPosList.m_pCharPos + startIndex, font, pCache, + i - startIndex, CharPosList.m_pCharPos + startIndex, font, font_size, pText2Device, fill_argb, FXGE_flags)) { bDraw = false; } @@ -596,7 +589,7 @@ FX_BOOL CPDF_TextRenderer::DrawNormalText(CFX_RenderDevice* pDevice, : pFont->m_FontFallbacks[fontPosition].get(); if (!pDevice->DrawNormalText(CharPosList.m_nChars - startIndex, CharPosList.m_pCharPos + startIndex, font, - pCache, font_size, pText2Device, fill_argb, + font_size, pText2Device, fill_argb, FXGE_flags)) { bDraw = false; } @@ -627,23 +620,9 @@ void CPDF_RenderStatus::DrawTextPathWithPattern(const CPDF_TextObject* textobj, RenderSingleObject(&path, pObj2Device); return; } - CFX_FontCache* pCache; - if (pFont->m_pDocument) { - pCache = pFont->m_pDocument->GetRenderData()->GetFontCache(); - } else { - pCache = CFX_GEModule::Get()->GetFontCache(); - } CPDF_CharPosList CharPosList; CharPosList.Load(textobj->m_nChars, textobj->m_pCharCodes, textobj->m_pCharPos, pFont, font_size); - std::vector<CFX_FaceCache*> faceCaches; - std::vector<CFX_AutoFontCache> autoFontCaches; - faceCaches.push_back(pCache->GetCachedFace(&pFont->m_Font)); - autoFontCaches.push_back(CFX_AutoFontCache(pCache, &pFont->m_Font)); - for (const auto& font : pFont->m_FontFallbacks) { - faceCaches.push_back(pCache->GetCachedFace(font.get())); - autoFontCaches.push_back(CFX_AutoFontCache(pCache, font.get())); - } for (uint32_t i = 0; i < CharPosList.m_nChars; i++) { FXTEXT_CHARPOS& charpos = CharPosList.m_pCharPos[i]; auto font = @@ -651,8 +630,7 @@ void CPDF_RenderStatus::DrawTextPathWithPattern(const CPDF_TextObject* textobj, ? &pFont->m_Font : pFont->m_FontFallbacks[charpos.m_FallbackFontPosition].get(); const CFX_PathData* pPath = - faceCaches[charpos.m_FallbackFontPosition + 1]->LoadGlyphPath( - font, charpos.m_GlyphIndex, charpos.m_FontCharWidth); + font->LoadGlyphPath(charpos.m_GlyphIndex, charpos.m_FontCharWidth); if (!pPath) { continue; } |