[arch-commits] Commit in chromium/trunk (2 files)

Evangelos Foutras foutrelis at archlinux.org
Tue Jun 27 04:55:22 UTC 2017


    Date: Tuesday, June 27, 2017 @ 04:55:18
  Author: foutrelis
Revision: 299282

upgpkg: chromium 59.0.3071.115-1

New upstream release.

Added:
  chromium/trunk/0001-Clip-FreeType-glyph-bitmap-to-mask.patch
Modified:
  chromium/trunk/PKGBUILD

-----------------------------------------------+
 0001-Clip-FreeType-glyph-bitmap-to-mask.patch |  170 ++++++++++++++++++++++++
 PKGBUILD                                      |   15 +-
 2 files changed, 183 insertions(+), 2 deletions(-)

Added: 0001-Clip-FreeType-glyph-bitmap-to-mask.patch
===================================================================
--- 0001-Clip-FreeType-glyph-bitmap-to-mask.patch	                        (rev 0)
+++ 0001-Clip-FreeType-glyph-bitmap-to-mask.patch	2017-06-27 04:55:18 UTC (rev 299282)
@@ -0,0 +1,170 @@
+From 6cdb5f2ad7684302a8a66217462d2aef4c5f4632 Mon Sep 17 00:00:00 2001
+From: Ben Wagner <bungeman at behemoth.cnc.corp.google.com>
+Date: Thu, 15 Jun 2017 10:43:17 -0400
+Subject: [PATCH] Clip FreeType glyph bitmap to mask.
+
+Skia has for some time assumed that when using FT_Render_Glyph with one
+of the LCD render modes that one extra pixel would be applied to each
+side of the resulting bitmap. FreieType has changed to make this more
+conservative when possible, so the pre-allocated SkMask and the generated
+FT_Bitmap may no longer agree on the size and origin.
+
+This change ensures the SkMask and FT_Bitmap are the same size and their
+origins align. This is not an ideal long term fix, but is both simple and
+localized for easy and quick back-porting, should that become necessary.
+
+BUG=skia:6663
+
+Change-Id: I49ec8f45376be8d867e8aef54eab79537731c310
+Reviewed-on: https://skia-review.googlesource.com/20327
+Reviewed-by: Herb Derby <herb at google.com>
+Commit-Queue: Ben Wagner <bungeman at google.com>
+---
+ src/ports/SkFontHost_FreeType_common.cpp | 100 +++++++++++++++++++++++++------
+ 1 file changed, 83 insertions(+), 17 deletions(-)
+
+diff --git a/src/ports/SkFontHost_FreeType_common.cpp b/src/ports/SkFontHost_FreeType_common.cpp
+index 9df7268bb4..a216fdb29c 100644
+--- a/src/ports/SkFontHost_FreeType_common.cpp
++++ b/src/ports/SkFontHost_FreeType_common.cpp
+@@ -395,8 +395,6 @@ void SkScalerContext_FreeType_Base::generateGlyphImage(
+     switch ( face->glyph->format ) {
+         case FT_GLYPH_FORMAT_OUTLINE: {
+             FT_Outline* outline = &face->glyph->outline;
+-            FT_BBox     bbox;
+-            FT_Bitmap   target;
+ 
+             int dx = 0, dy = 0;
+             if (fRec.fFlags & SkScalerContext::kSubpixelPositioning_Flag) {
+@@ -405,36 +403,97 @@ void SkScalerContext_FreeType_Base::generateGlyphImage(
+                 // negate dy since freetype-y-goes-up and skia-y-goes-down
+                 dy = -dy;
+             }
+-            FT_Outline_Get_CBox(outline, &bbox);
+-            /*
+-                what we really want to do for subpixel is
+-                    offset(dx, dy)
+-                    compute_bounds
+-                    offset(bbox & !63)
+-                but that is two calls to offset, so we do the following, which
+-                achieves the same thing with only one offset call.
+-            */
+-            FT_Outline_Translate(outline, dx - ((bbox.xMin + dx) & ~63),
+-                                          dy - ((bbox.yMin + dy) & ~63));
++
++            memset(glyph.fImage, 0, glyph.rowBytes() * glyph.fHeight);
+ 
+             if (SkMask::kLCD16_Format == glyph.fMaskFormat) {
++                FT_Outline_Translate(outline, dx, dy);
+                 FT_Error err = FT_Render_Glyph(face->glyph, doVert ? FT_RENDER_MODE_LCD_V :
+                                                                      FT_RENDER_MODE_LCD);
+                 if (err) {
+                     SK_TRACEFTR(err, "Could not render glyph.");
+-                    sk_bzero(glyph.fImage, glyph.computeImageSize());
+                     return;
+                 }
++
+                 SkMask mask;
+                 glyph.toMask(&mask);
++#ifdef SK_SHOW_TEXT_BLIT_COVERAGE
++                memset(mask.fImage, 0x80, mask.fBounds.height() * mask.fRowBytes);
++#endif
++                FT_GlyphSlotRec& ftGlyph = *face->glyph;
++
++                if (!SkIRect::Intersects(mask.fBounds,
++                                         SkIRect::MakeXYWH( ftGlyph.bitmap_left,
++                                                           -ftGlyph.bitmap_top,
++                                                            ftGlyph.bitmap.width,
++                                                            ftGlyph.bitmap.rows)))
++                {
++                    return;
++                }
++
++                // If the FT_Bitmap extent is larger, discard bits of the bitmap outside the mask.
++                // If the SkMask extent is larger, shrink mask to fit bitmap (clearing discarded).
++                unsigned char* origBuffer = ftGlyph.bitmap.buffer;
++                // First align the top left (origin).
++                if (-ftGlyph.bitmap_top < mask.fBounds.fTop) {
++                    int32_t topDiff = mask.fBounds.fTop - (-ftGlyph.bitmap_top);
++                    ftGlyph.bitmap.buffer += ftGlyph.bitmap.pitch * topDiff;
++                    ftGlyph.bitmap.rows -= topDiff;
++                    ftGlyph.bitmap_top = -mask.fBounds.fTop;
++                }
++                if (ftGlyph.bitmap_left < mask.fBounds.fLeft) {
++                    int32_t leftDiff = mask.fBounds.fLeft - ftGlyph.bitmap_left;
++                    ftGlyph.bitmap.buffer += leftDiff;
++                    ftGlyph.bitmap.width -= leftDiff;
++                    ftGlyph.bitmap_left = mask.fBounds.fLeft;
++                }
++                if (mask.fBounds.fTop < -ftGlyph.bitmap_top) {
++                    mask.fImage += mask.fRowBytes * (-ftGlyph.bitmap_top - mask.fBounds.fTop);
++                    mask.fBounds.fTop = -ftGlyph.bitmap_top;
++                }
++                if (mask.fBounds.fLeft < ftGlyph.bitmap_left) {
++                    mask.fImage += sizeof(uint16_t) * (ftGlyph.bitmap_left - mask.fBounds.fLeft);
++                    mask.fBounds.fLeft = ftGlyph.bitmap_left;
++                }
++                // Origins aligned, clean up the width and height.
++                int ftVertScale = (doVert ? 3 : 1);
++                int ftHoriScale = (doVert ? 1 : 3);
++                if (mask.fBounds.height() * ftVertScale < SkToInt(ftGlyph.bitmap.rows)) {
++                    ftGlyph.bitmap.rows = mask.fBounds.height() * ftVertScale;
++                }
++                if (mask.fBounds.width() * ftHoriScale < SkToInt(ftGlyph.bitmap.width)) {
++                    ftGlyph.bitmap.width = mask.fBounds.width() * ftHoriScale;
++                }
++                if (SkToInt(ftGlyph.bitmap.rows) < mask.fBounds.height() * ftVertScale) {
++                    mask.fBounds.fBottom = mask.fBounds.fTop + ftGlyph.bitmap.rows / ftVertScale;
++                }
++                if (SkToInt(ftGlyph.bitmap.width) < mask.fBounds.width() * ftHoriScale) {
++                    mask.fBounds.fRight = mask.fBounds.fLeft + ftGlyph.bitmap.width / ftHoriScale;
++                }
+                 if (fPreBlend.isApplicable()) {
+-                    copyFT2LCD16<true>(face->glyph->bitmap, mask, doBGR,
++                    copyFT2LCD16<true>(ftGlyph.bitmap, mask, doBGR,
+                                        fPreBlend.fR, fPreBlend.fG, fPreBlend.fB);
+                 } else {
+-                    copyFT2LCD16<false>(face->glyph->bitmap, mask, doBGR,
++                    copyFT2LCD16<false>(ftGlyph.bitmap, mask, doBGR,
+                                         fPreBlend.fR, fPreBlend.fG, fPreBlend.fB);
+                 }
++                // Restore the buffer pointer so FreeType can properly free it.
++                ftGlyph.bitmap.buffer = origBuffer;
+             } else {
++                FT_BBox     bbox;
++                FT_Bitmap   target;
++                FT_Outline_Get_CBox(outline, &bbox);
++                /*
++                    what we really want to do for subpixel is
++                        offset(dx, dy)
++                        compute_bounds
++                        offset(bbox & !63)
++                    but that is two calls to offset, so we do the following, which
++                    achieves the same thing with only one offset call.
++                */
++                FT_Outline_Translate(outline, dx - ((bbox.xMin + dx) & ~63),
++                                              dy - ((bbox.yMin + dy) & ~63));
++
+                 target.width = glyph.fWidth;
+                 target.rows = glyph.fHeight;
+                 target.pitch = glyph.rowBytes();
+@@ -442,8 +501,15 @@ void SkScalerContext_FreeType_Base::generateGlyphImage(
+                 target.pixel_mode = compute_pixel_mode( (SkMask::Format)fRec.fMaskFormat);
+                 target.num_grays = 256;
+ 
+-                memset(glyph.fImage, 0, glyph.rowBytes() * glyph.fHeight);
+                 FT_Outline_Get_Bitmap(face->glyph->library, outline, &target);
++#ifdef SK_SHOW_TEXT_BLIT_COVERAGE
++                for (int y = 0; y < glyph.fHeight; ++y) {
++                    for (int x = 0; x < glyph.fWidth; ++x) {
++                        uint8_t& a = ((uint8_t*)glyph.fImage)[(glyph.rowBytes() * y) + x];
++                        a = SkTMax<uint8_t>(a, 0x20);
++                    }
++                }
++#endif
+             }
+         } break;
+ 
+-- 
+2.13.2
+

Modified: PKGBUILD
===================================================================
--- PKGBUILD	2017-06-27 03:52:27 UTC (rev 299281)
+++ PKGBUILD	2017-06-27 04:55:18 UTC (rev 299282)
@@ -25,9 +25,10 @@
 )
 
 pkgname=chromium
-pkgver=59.0.3071.109
+pkgver=59.0.3071.115
 pkgrel=1
 _launcher_ver=5
+_freetype_rev=5a3490e054bda8a318ebde482
 pkgdesc="A web browser built for speed, simplicity, and security"
 arch=('i686' 'x86_64')
 url="https://www.chromium.org/Home"
@@ -43,19 +44,23 @@
 install=chromium.install
 source=(https://commondatastorage.googleapis.com/chromium-browser-official/$pkgname-$pkgver.tar.xz
         chromium-launcher-$_launcher_ver.tar.gz::https://github.com/foutrelis/chromium-launcher/archive/v$_launcher_ver.tar.gz
+        chromium-freetype2::git+https://chromium.googlesource.com/chromium/src/third_party/freetype2#commit=$_freetype_rev
         chromium.desktop
         chromium-system-ffmpeg-r6.patch
         0001-ClientNativePixmapFactoryDmabuf-uses-ioctl-instead-o.patch
         0001-Fix-kernel-version-condition-for-including-dma-buf.h.patch
+        0001-Clip-FreeType-glyph-bitmap-to-mask.patch
         chromium-blink-gcc7.patch
         chromium-v8-gcc7.patch
         chromium-widevine.patch)
-sha256sums=('83faeb3537428d83728258b28e907caaee6e6572bcd7d9b9a5f6009e7ea758d9'
+sha256sums=('37cbc9955ae3b25cd4e9851a82ea97a0035021cc90658902938ad1c20f263170'
             '4dc3428f2c927955d9ae117f2fb24d098cc6dd67adb760ac9c82b522ec8b0587'
+            'SKIP'
             '028a748a5c275de9b8f776f97909f999a8583a4b77fd1cd600b4fc5c0c3e91e9'
             '2fc21f48b95f9f2c2bd8576742fcf8028a8877c6b6e96c04d88184915982234e'
             '9c081c84a4f85dbef82a9edf34cf0b1e8377c563874fd9c1b4efddf1476748f9'
             '42eb6ada30d5d507f2bda2d2caece37e397e7086bc0d430db776fad143562fb6'
+            'e60aa0ff01f8bee67e45fde7bbe932901194984673ec4b10ea82bba1bace0cd7'
             'f94310a7ba9b8b777adfb4442bcc0a8f0a3d549b2cf4a156066f8e2e28e2f323'
             '46dacc4fa52652b7d99b8996d6a97e5e3bac586f879aefb9fb95020d2c4e5aec'
             'd6fdcb922e5a7fbe15759d39ccc8ea4225821c44d98054ce0f23f9d1f00c9808')
@@ -71,6 +76,9 @@
 prepare() {
   cd "$srcdir/$pkgname-$pkgver"
 
+  # https://groups.google.com/a/chromium.org/d/msg/chromium-packagers/wuInaKJkosg/kMfIV_7wDgAJ
+  mv "$srcdir/chromium-freetype2" third_party/freetype/src
+
   # Enable support for the Widevine CDM plugin
   # libwidevinecdm.so is not included, but can be copied over from Chrome
   # (Version string doesn't seem to matter so let's go with "Pinkie Pie")
@@ -81,6 +89,9 @@
   patch -Np1 -i ../0001-ClientNativePixmapFactoryDmabuf-uses-ioctl-instead-o.patch
   patch -Np1 -i ../0001-Fix-kernel-version-condition-for-including-dma-buf.h.patch
 
+  # https://bugs.chromium.org/p/skia/issues/detail?id=6663
+  patch -Np1 -d third_party/skia <../0001-Clip-FreeType-glyph-bitmap-to-mask.patch
+
   # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=853347
   patch -Np1 -i ../chromium-blink-gcc7.patch
 



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