mirror of
https://github.com/archlinuxarm/PKGBUILDs.git
synced 2024-11-28 22:57:37 +00:00
73 lines
2.6 KiB
Diff
73 lines
2.6 KiB
Diff
|
From cb0aad687f34629a42053d600cf2947282cea2c0 Mon Sep 17 00:00:00 2001
|
||
|
From: Lei Zhang <thestig@chromium.org>
|
||
|
Date: Mon, 31 Jan 2022 22:42:35 +0000
|
||
|
Subject: [PATCH] Use FT_Done_MM_Var() in CFX_Font::AdjustMMParams() when
|
||
|
possible.
|
||
|
|
||
|
When FreeType has FT_Done_MM_Var(), use that to free memory in
|
||
|
CFX_Font::AdjustMMParams() to avoid mismatched alloc/free functions.
|
||
|
|
||
|
Bug: pdfium:1400
|
||
|
Change-Id: I044540893103921fc64cdd53fcd628cfebf2c9db
|
||
|
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/90130
|
||
|
Reviewed-by: Nigi <nigi@chromium.org>
|
||
|
Commit-Queue: Lei Zhang <thestig@chromium.org>
|
||
|
|
||
|
(cherry picked from commit ffeb67faf715475f6e463d65c368f556780adf19)
|
||
|
---
|
||
|
core/fxge/cfx_font.cpp | 28 ++++++++++++++++++++++++++--
|
||
|
1 file changed, 26 insertions(+), 2 deletions(-)
|
||
|
|
||
|
diff --git a/core/fxge/cfx_font.cpp b/core/fxge/cfx_font.cpp
|
||
|
index 7a4e8eb24..0ef421fe7 100644
|
||
|
--- a/core/fxge/cfx_font.cpp
|
||
|
+++ b/core/fxge/cfx_font.cpp
|
||
|
@@ -43,6 +43,30 @@ struct OUTLINE_PARAMS {
|
||
|
float m_CoordUnit;
|
||
|
};
|
||
|
|
||
|
+// TODO(crbug.com/pdfium/1400): When FT_Done_MM_Var() is more likely to be
|
||
|
+// available to all users in the future, remove FreeMMVar() and use
|
||
|
+// FT_Done_MM_Var() directly.
|
||
|
+//
|
||
|
+// Use weak symbols to check if FT_Done_MM_Var() is available at runtime.
|
||
|
+#if !defined(OS_WIN)
|
||
|
+extern "C" __attribute__((weak)) decltype(FT_Done_MM_Var) FT_Done_MM_Var;
|
||
|
+#endif
|
||
|
+
|
||
|
+void FreeMMVar(FXFT_FaceRec* rec, FXFT_MM_VarPtr variation_desc) {
|
||
|
+#if defined(OS_WIN)
|
||
|
+ // Assume `use_system_freetype` GN var is never set on Windows.
|
||
|
+ constexpr bool has_ft_done_mm_var_func = true;
|
||
|
+#else
|
||
|
+ static const bool has_ft_done_mm_var_func = !!FT_Done_MM_Var;
|
||
|
+#endif
|
||
|
+ if (has_ft_done_mm_var_func) {
|
||
|
+ FT_Done_MM_Var(CFX_GEModule::Get()->GetFontMgr()->GetFTLibrary(),
|
||
|
+ variation_desc);
|
||
|
+ } else {
|
||
|
+ FXFT_Free(rec, variation_desc);
|
||
|
+ }
|
||
|
+}
|
||
|
+
|
||
|
#ifdef PDF_ENABLE_XFA
|
||
|
unsigned long FTStreamRead(FXFT_StreamRec* stream,
|
||
|
unsigned long offset,
|
||
|
@@ -640,14 +664,14 @@ void CFX_Font::AdjustMMParams(int glyph_index,
|
||
|
int max_width = FXFT_Get_Glyph_HoriAdvance(m_Face->GetRec()) * 1000 /
|
||
|
FXFT_Get_Face_UnitsPerEM(m_Face->GetRec());
|
||
|
if (max_width == min_width) {
|
||
|
- FXFT_Free(m_Face->GetRec(), pMasters);
|
||
|
+ FreeMMVar(m_Face->GetRec(), pMasters);
|
||
|
return;
|
||
|
}
|
||
|
int param = min_param + (max_param - min_param) * (dest_width - min_width) /
|
||
|
(max_width - min_width);
|
||
|
coords[1] = param;
|
||
|
}
|
||
|
- FXFT_Free(m_Face->GetRec(), pMasters);
|
||
|
+ FreeMMVar(m_Face->GetRec(), pMasters);
|
||
|
FT_Set_MM_Design_Coordinates(m_Face->GetRec(), 2, coords);
|
||
|
}
|
||
|
|