Compare commits
No commits in common. 'cs10' and 'c9' have entirely different histories.
@ -1 +1 @@
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be7bdd4753df722c125d7eb7a5c80123ecea6c97 SOURCES/cairo-1.18.2.tar.xz
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68712ae1039b114347be3b7200bc1c901d47a636 SOURCES/cairo-1.17.4.tar.xz
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@ -1 +1 @@
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SOURCES/cairo-1.18.2.tar.xz
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SOURCES/cairo-1.17.4.tar.xz
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@ -0,0 +1,56 @@
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From 12a5b7384f35d9a3f4c6b151fac4857444db3d6a Mon Sep 17 00:00:00 2001
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From: Nikolaus Waxweiler <madigens@gmail.com>
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Date: Sat, 10 Nov 2018 16:44:23 +0000
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Subject: [PATCH] Set default LCD filter to FreeType's default
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---
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src/cairo-ft-font.c | 6 +++---
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1 file changed, 3 insertions(+), 3 deletions(-)
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diff --git a/src/cairo-ft-font.c b/src/cairo-ft-font.c
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index 325dd61b4..3c47dc12e 100644
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--- a/src/cairo-ft-font.c
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+++ b/src/cairo-ft-font.c
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@@ -1404,7 +1404,7 @@ _render_glyph_outline (FT_Face face,
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cairo_image_surface_t **surface)
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{
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int rgba = FC_RGBA_UNKNOWN;
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- int lcd_filter = FT_LCD_FILTER_LEGACY;
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+ int lcd_filter = FT_LCD_FILTER_DEFAULT;
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FT_GlyphSlot glyphslot = face->glyph;
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FT_Outline *outline = &glyphslot->outline;
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FT_Bitmap bitmap;
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@@ -1439,13 +1439,13 @@ _render_glyph_outline (FT_Face face,
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case CAIRO_LCD_FILTER_NONE:
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lcd_filter = FT_LCD_FILTER_NONE;
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break;
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- case CAIRO_LCD_FILTER_DEFAULT:
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case CAIRO_LCD_FILTER_INTRA_PIXEL:
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lcd_filter = FT_LCD_FILTER_LEGACY;
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break;
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case CAIRO_LCD_FILTER_FIR3:
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lcd_filter = FT_LCD_FILTER_LIGHT;
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break;
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+ case CAIRO_LCD_FILTER_DEFAULT:
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case CAIRO_LCD_FILTER_FIR5:
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lcd_filter = FT_LCD_FILTER_DEFAULT;
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break;
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@@ -3416,7 +3416,6 @@ _cairo_ft_font_options_substitute (const cairo_font_options_t *options,
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case CAIRO_LCD_FILTER_NONE:
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lcd_filter = FT_LCD_FILTER_NONE;
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break;
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- case CAIRO_LCD_FILTER_DEFAULT:
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case CAIRO_LCD_FILTER_INTRA_PIXEL:
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lcd_filter = FT_LCD_FILTER_LEGACY;
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break;
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@@ -3424,6 +3423,7 @@ _cairo_ft_font_options_substitute (const cairo_font_options_t *options,
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lcd_filter = FT_LCD_FILTER_LIGHT;
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break;
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default:
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+ case CAIRO_LCD_FILTER_DEFAULT:
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case CAIRO_LCD_FILTER_FIR5:
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lcd_filter = FT_LCD_FILTER_DEFAULT;
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break;
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--
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2.19.1
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@ -0,0 +1,58 @@
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From a3b69a0215fdface0fd5730872a4b3242d979dca Mon Sep 17 00:00:00 2001
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From: Uli Schlachter <psychon@znc.in>
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Date: Tue, 9 Feb 2021 16:54:35 +0100
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Subject: [PATCH] pdf font subset: Generate valid font names
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A hash value is encoded in base 26 with upper case letters for font
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names.
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Commit ed984146 replaced "numerator = abs (hash);" with "numerator =
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hash;" in this code, because hash has type uint32_t and the compiler
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warned about taking the absolute value of an unsigned value. However,
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abs() is actually defined to take an int argument. Thus, there was some
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implicit cast.
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Since numerator has type long, i.e. is signed, it is now actually
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possible to get an overflow in the implicit cast and then have a
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negative number. The following code is not prepared for this and
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produces non-letters when encoding the hash.
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This commit fixes that problem by not using ldiv() and instead using /
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and % to directly compute the needed values. This gets rid of the need
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to convert to type long. Since now everything works with uint32_t, there
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is no more chance for negative numbers messing things up.
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Fixes: https://gitlab.freedesktop.org/cairo/cairo/-/issues/449
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Signed-off-by: Uli Schlachter <psychon@znc.in>
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---
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src/cairo-pdf-surface.c | 8 ++------
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1 file changed, 2 insertions(+), 6 deletions(-)
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diff --git a/src/cairo-pdf-surface.c b/src/cairo-pdf-surface.c
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index 6da460878..52c49b6d2 100644
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--- a/src/cairo-pdf-surface.c
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+++ b/src/cairo-pdf-surface.c
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@@ -5310,18 +5310,14 @@ _create_font_subset_tag (cairo_scaled_font_subset_t *font_subset,
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{
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uint32_t hash;
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int i;
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- long numerator;
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- ldiv_t d;
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hash = _hash_data ((unsigned char *) font_name, strlen(font_name), 0);
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hash = _hash_data ((unsigned char *) (font_subset->glyphs),
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font_subset->num_glyphs * sizeof(unsigned long), hash);
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- numerator = hash;
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for (i = 0; i < 6; i++) {
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- d = ldiv (numerator, 26);
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- numerator = d.quot;
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- tag[i] = 'A' + d.rem;
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+ tag[i] = 'A' + (hash % 26);
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+ hash /= 26;
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}
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tag[i] = 0;
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}
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--
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GitLab
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@ -0,0 +1,199 @@
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From 40e9d1a0a69f01b55b4fa131bc253c7c09a0ae91 Mon Sep 17 00:00:00 2001
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From: Heiko Lewin <heiko.lewin@worldiety.de>
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Date: Tue, 15 Dec 2020 16:48:19 +0100
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Subject: [PATCH 1/2] Fix mask usage in image-compositor
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---
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src/cairo-image-compositor.c | 8 ++--
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test/Makefile.sources | 1 +
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test/bug-image-compositor.c | 39 ++++++++++++++++++++
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test/reference/bug-image-compositor.ref.png | Bin 0 -> 185 bytes
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4 files changed, 44 insertions(+), 4 deletions(-)
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create mode 100644 test/bug-image-compositor.c
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create mode 100644 test/reference/bug-image-compositor.ref.png
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diff --git a/src/cairo-image-compositor.c b/src/cairo-image-compositor.c
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index 122a8ca42..b20e2ec78 100644
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--- a/src/cairo-image-compositor.c
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+++ b/src/cairo-image-compositor.c
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@@ -2601,14 +2601,14 @@ _inplace_src_spans (void *abstract_renderer, int y, int h,
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unsigned num_spans)
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{
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cairo_image_span_renderer_t *r = abstract_renderer;
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- uint8_t *m;
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+ uint8_t *m, *base = (uint8_t*)pixman_image_get_data(r->mask);
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int x0;
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if (num_spans == 0)
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return CAIRO_STATUS_SUCCESS;
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x0 = spans[0].x;
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- m = r->_buf;
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+ m = base;
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do {
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int len = spans[1].x - spans[0].x;
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if (len >= r->u.composite.run_length && spans[0].coverage == 0xff) {
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@@ -2646,7 +2646,7 @@ _inplace_src_spans (void *abstract_renderer, int y, int h,
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spans[0].x, y,
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spans[1].x - spans[0].x, h);
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- m = r->_buf;
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+ m = base;
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x0 = spans[1].x;
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} else if (spans[0].coverage == 0x0) {
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if (spans[0].x != x0) {
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@@ -2675,7 +2675,7 @@ _inplace_src_spans (void *abstract_renderer, int y, int h,
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#endif
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}
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- m = r->_buf;
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+ m = base;
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x0 = spans[1].x;
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} else {
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*m++ = spans[0].coverage;
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diff --git a/test/Makefile.sources b/test/Makefile.sources
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index c47131faf..86fd53d15 100644
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--- a/test/Makefile.sources
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+++ b/test/Makefile.sources
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@@ -33,6 +33,7 @@ test_sources = \
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bug-source-cu.c \
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bug-extents.c \
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bug-seams.c \
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+ bug-image-compositor.c \
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caps.c \
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checkerboard.c \
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caps-joins.c \
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diff --git a/test/bug-image-compositor.c b/test/bug-image-compositor.c
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new file mode 100644
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index 000000000..fc4fd370b
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--- /dev/null
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+++ b/test/bug-image-compositor.c
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@@ -0,0 +1,39 @@
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+#include "cairo-test.h"
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+
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+static cairo_test_status_t
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+draw (cairo_t *cr, int width, int height)
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+{
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+ cairo_set_source_rgb (cr, 0., 0., 0.);
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+ cairo_paint (cr);
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+
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+ cairo_set_source_rgb (cr, 1., 1., 1.);
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+ cairo_set_line_width (cr, 1.);
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+
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+ cairo_pattern_t *p = cairo_pattern_create_linear (0, 0, width, height);
|
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+ cairo_pattern_add_color_stop_rgb (p, 0, 0.99, 1, 1);
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+ cairo_pattern_add_color_stop_rgb (p, 1, 1, 1, 1);
|
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+ cairo_set_source (cr, p);
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||||
+
|
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+ cairo_move_to (cr, 0.5, -1);
|
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+ for (int i = 0; i < width; i+=3) {
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+ cairo_rel_line_to (cr, 2, 2);
|
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+ cairo_rel_line_to (cr, 1, -2);
|
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+ }
|
||||
+
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||||
+ cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
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||||
+ cairo_stroke (cr);
|
||||
+
|
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+ cairo_pattern_destroy(p);
|
||||
+
|
||||
+ return CAIRO_TEST_SUCCESS;
|
||||
+}
|
||||
+
|
||||
+
|
||||
+CAIRO_TEST (bug_image_compositor,
|
||||
+ "Crash in image-compositor",
|
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+ "stroke, stress", /* keywords */
|
||||
+ NULL, /* requirements */
|
||||
+ 10000, 1,
|
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+ NULL, draw)
|
||||
+
|
||||
+
|
||||
diff --git a/test/reference/bug-image-compositor.ref.png b/test/reference/bug-image-compositor.ref.png
|
||||
new file mode 100644
|
||||
index 0000000000000000000000000000000000000000..939f659d2c8620e9927a3a79f5e96fb639c418be
|
||||
GIT binary patch
|
||||
literal 185
|
||||
zcmeAS@N?(olHy`uVBq!ia0y~yP!|BQ89A7M<o7+wF+hqf$=lt9;Xep2*t>i(P$bXO
|
||||
z#WAE}&f8-f1se=_SPWL_NSx=C)BnJ0eBr6Z%1egFEOv(*t#+|{>X&v^RS7GQe(vez
|
||||
lf)$wgmAfM(p2Sx&&i!{gWy)N&qd=P(JYD@<);T3K0RWsgHuC@g
|
||||
|
||||
literal 0
|
||||
HcmV?d00001
|
||||
|
||||
--
|
||||
2.34.1
|
||||
|
||||
|
||||
From afc23bfdc3c2597b9fe0ee34b9b4bfa47fa03698 Mon Sep 17 00:00:00 2001
|
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From: Heiko Lewin <heiko.lewin@worldiety.de>
|
||||
Date: Tue, 15 Dec 2020 17:14:18 +0100
|
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Subject: [PATCH 2/2] Minor cleanups
|
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|
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---
|
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test/bug-image-compositor.c | 33 ++++++++++++++++++++++++++++++---
|
||||
1 file changed, 30 insertions(+), 3 deletions(-)
|
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|
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diff --git a/test/bug-image-compositor.c b/test/bug-image-compositor.c
|
||||
index fc4fd370b..304ea089c 100644
|
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--- a/test/bug-image-compositor.c
|
||||
+++ b/test/bug-image-compositor.c
|
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@@ -1,5 +1,34 @@
|
||||
+/*
|
||||
+ * Copyright © 2020 Uli Schlachter, Heiko Lewin
|
||||
+ *
|
||||
+ * Permission is hereby granted, free of charge, to any person
|
||||
+ * obtaining a copy of this software and associated documentation
|
||||
+ * files (the "Software"), to deal in the Software without
|
||||
+ * restriction, including without limitation the rights to use, copy,
|
||||
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
|
||||
+ * of the Software, and to permit persons to whom the Software is
|
||||
+ * furnished to do so, subject to the following conditions:
|
||||
+ *
|
||||
+ * The above copyright notice and this permission notice shall be
|
||||
+ * included in all copies or substantial portions of the Software.
|
||||
+ *
|
||||
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
+ * SOFTWARE.
|
||||
+ *
|
||||
+ * Author: Uli Schlachter <psychon@znc.in>
|
||||
+ * Author: Heiko Lewin <hlewin@gmx.de>
|
||||
+ */
|
||||
#include "cairo-test.h"
|
||||
|
||||
+
|
||||
+/* This test reproduces an overflow of a mask-buffer in cairo-image-compositor.c */
|
||||
+
|
||||
static cairo_test_status_t
|
||||
draw (cairo_t *cr, int width, int height)
|
||||
{
|
||||
@@ -13,6 +42,7 @@ draw (cairo_t *cr, int width, int height)
|
||||
cairo_pattern_add_color_stop_rgb (p, 0, 0.99, 1, 1);
|
||||
cairo_pattern_add_color_stop_rgb (p, 1, 1, 1, 1);
|
||||
cairo_set_source (cr, p);
|
||||
+ cairo_pattern_destroy(p);
|
||||
|
||||
cairo_move_to (cr, 0.5, -1);
|
||||
for (int i = 0; i < width; i+=3) {
|
||||
@@ -23,8 +53,6 @@ draw (cairo_t *cr, int width, int height)
|
||||
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
|
||||
cairo_stroke (cr);
|
||||
|
||||
- cairo_pattern_destroy(p);
|
||||
-
|
||||
return CAIRO_TEST_SUCCESS;
|
||||
}
|
||||
|
||||
@@ -36,4 +64,3 @@ CAIRO_TEST (bug_image_compositor,
|
||||
10000, 1,
|
||||
NULL, draw)
|
||||
|
||||
-
|
||||
--
|
||||
2.34.1
|
||||
|
||||
Loading…
Reference in new issue