From 8f7ee98e2c622c21f452cd9fd5956fe85bcb2b7c Mon Sep 17 00:00:00 2001 From: Nicolas Pena Date: Thu, 31 May 2018 00:32:14 +0000 Subject: Fix font regression in AdjustMMParams MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit 2334660 changed the |dest_width| in CFX_Font::AdjustMMParams to unsigned, but this means that dest_width - min_width becomes unsigned, which is wrong because the subtraction could be negative. This CL fixes this bug. Bug: chromium:845697 Change-Id: I88fb2f3ee3837d80ff5fa70a08309d9e0fec50e0 Reviewed-on: https://pdfium-review.googlesource.com/33150 Commit-Queue: Nicolás Peña Moreno Reviewed-by: Tom Sepez Reviewed-by: Lei Zhang --- core/fxge/cfx_font.cpp | 3 ++- core/fxge/cfx_font.h | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) (limited to 'core') diff --git a/core/fxge/cfx_font.cpp b/core/fxge/cfx_font.cpp index 4634b87ac7..d04fc0dac0 100644 --- a/core/fxge/cfx_font.cpp +++ b/core/fxge/cfx_font.cpp @@ -501,8 +501,9 @@ void CFX_Font::ClearFaceCache() { } void CFX_Font::AdjustMMParams(int glyph_index, - uint32_t dest_width, + int dest_width, int weight) const { + ASSERT(dest_width >= 0); FXFT_MM_Var pMasters = nullptr; FXFT_Get_MM_Var(m_Face, &pMasters); if (!pMasters) diff --git a/core/fxge/cfx_font.h b/core/fxge/cfx_font.h index 7ef8ed7fa8..fbf35eaca1 100644 --- a/core/fxge/cfx_font.h +++ b/core/fxge/cfx_font.h @@ -84,7 +84,7 @@ class CFX_Font { #endif uint8_t* GetFontData() const { return m_pFontData; } uint32_t GetSize() const { return m_dwSize; } - void AdjustMMParams(int glyph_index, uint32_t dest_width, int weight) const; + void AdjustMMParams(int glyph_index, int dest_width, int weight) const; CFX_PathData* LoadGlyphPathImpl(uint32_t glyph_index, uint32_t dest_width) const; -- cgit v1.2.3