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Apply patches recommended by the GTK+ Windows team

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- Fix A1 format win32 surfaces
- Reset clip region when writing fallback results
This commit is contained in:
Kalev Lember 2012-02-09 14:26:26 +02:00
parent 92fdddc148
commit 711a2b45b7
3 changed files with 175 additions and 1 deletions
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138
mingw32-cairo-A1_surfaces.patch Normal file
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@ -0,0 +1,138 @@
diff --git a/src/cairo-win32-surface.c b/src/cairo-win32-surface.c
index 660aaba..8ebd185 100644
--- a/src/cairo-win32-surface.c
+++ b/src/cairo-win32-surface.c
@@ -545,6 +545,79 @@ _cairo_win32_surface_get_subimage (cairo_win32_surface_t *surface,
return CAIRO_STATUS_SUCCESS;
}
+static const unsigned char mirror[256] = {
+ 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
+ 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
+ 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
+ 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
+ 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
+ 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
+ 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
+ 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
+ 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
+ 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
+ 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
+ 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
+ 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
+ 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
+ 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
+ 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
+ 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
+ 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
+ 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
+ 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
+ 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
+ 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
+ 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
+ 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
+ 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
+ 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
+ 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
+ 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
+ 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
+ 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
+ 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
+ 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
+};
+
+static void
+mirror_a1_bits (cairo_surface_t *image_surface)
+{
+ int w, h, stride, x, y;
+ unsigned char *data;
+
+ h = cairo_image_surface_get_height (image_surface);
+ stride = cairo_image_surface_get_stride (image_surface);
+ data = cairo_image_surface_get_data (image_surface);
+
+ for (y = 0; y < h; y++) {
+ for (x = 0; x < stride; x++) {
+ *data = mirror[*data];
+ data++;
+ }
+ }
+}
+
+static cairo_bool_t
+_cairo_win32_surface_is_gdi_format (cairo_surface_t *image_surface)
+{
+ return cairo_image_surface_get_format (image_surface) != CAIRO_FORMAT_A1;
+}
+
+static void
+_cairo_win32_surface_convert_from_gdi_format (cairo_surface_t *image_surface)
+{
+ if (cairo_image_surface_get_format (image_surface) == CAIRO_FORMAT_A1)
+ mirror_a1_bits (image_surface);
+}
+
+static void
+_cairo_win32_surface_convert_to_gdi_format (cairo_surface_t *image_surface)
+{
+ if (cairo_image_surface_get_format (image_surface) == CAIRO_FORMAT_A1)
+ mirror_a1_bits (image_surface);
+}
+
static cairo_status_t
_cairo_win32_surface_acquire_source_image (void *abstract_surface,
cairo_image_surface_t **image_out,
@@ -554,7 +627,7 @@ _cairo_win32_surface_acquire_source_image (void *abstract_sur
cairo_win32_surface_t *local;
cairo_status_t status;
- if (surface->image) {
+ if (surface->image && _cairo_win32_surface_is_gdi_format (surface->image)) {
*image_out = (cairo_image_surface_t *)surface->image;
*image_extra = NULL;
return CAIRO_STATUS_SUCCESS;
@@ -566,6 +639,8 @@ _cairo_win32_surface_acquire_source_image (void *abstract_sur
if (status)
return status;
+ _cairo_win32_surface_convert_from_gdi_format (local->image);
+
*image_out = (cairo_image_surface_t *)local->image;
*image_extra = local;
return CAIRO_STATUS_SUCCESS;
@@ -593,7 +668,7 @@ _cairo_win32_surface_acquire_dest_image (void *abstract_surfa
cairo_win32_surface_t *local = NULL;
cairo_status_t status;
- if (surface->image) {
+ if (surface->image && _cairo_win32_surface_is_gdi_format (surface->image)) {
GdiFlush();
*image_out = (cairo_image_surface_t *) surface->image;
@@ -611,6 +686,8 @@ _cairo_win32_surface_acquire_dest_image (void *abstract_surfa
if (status)
return status;
+ _cairo_win32_surface_convert_from_gdi_format (local->image);
+
*image_out = (cairo_image_surface_t *) local->image;
*image_extra = local;
*image_rect = *interest_rect;
@@ -630,6 +707,8 @@ _cairo_win32_surface_release_dest_image (void *abstract_surfa
if (!local)
return;
+ _cairo_win32_surface_convert_from_gdi_format (local->image);
+
if (!BitBlt (surface->dc,
image_rect->x, image_rect->y,
image_rect->width, image_rect->height,
@@ -1313,7 +1392,7 @@ _cairo_win32_surface_composite (cairo_operator_t op,
UNSUPPORTED:
/* Fall back to image surface directly, if this is a DIB surface */
- if (dst->image) {
+ if (dst->image && _cairo_win32_surface_is_gdi_format (dst->image)) {
GdiFlush();
return dst->image->backend->composite (op, pattern, mask_pattern,

21
mingw32-cairo-reset_clip.patch Normal file
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@ -0,0 +1,21 @@
commit a02dd8ddc7dde30ba71e87ab5e90bf910b68da2b
Author: Alexander Larsson <alexl@redhat.com>
Date: Fri Nov 11 16:15:31 2011 +0100
win32: Reset clip in _cairo_win32_surface_release_dest_image
Without this we were using leftover clip regions from e.g. show_glyphs
which made the fallback drawing results disappear.
diff --git a/src/cairo-win32-surface.c b/src/cairo-win32-surface.c
index 660aaba..59305f1 100644
--- a/src/cairo-win32-surface.c
+++ b/src/cairo-win32-surface.c
@@ -707,6 +707,7 @@ _cairo_win32_surface_release_dest_image (void *abstract_surfa
if (!local)
return;
+ _cairo_win32_surface_set_clip_region (surface, NULL);
_cairo_win32_surface_convert_from_gdi_format (local->image);
if (!BitBlt (surface->dc,

17
mingw32-cairo.spec
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@ -4,7 +4,7 @@
Name: mingw32-cairo
Version: 1.10.2
Release: 6%{?dist}
Release: 7%{?dist}
Summary: MinGW Windows Cairo library
License: LGPLv2 or MPLv1.1
@ -16,6 +16,14 @@ Group: Development/Libraries
# isn't declared in any of the mingw headers. work around this
Patch0: mingw32-cairo-fix-ffs-declaration.patch
# Fix A1 format win32 surfaces
# https://bugs.freedesktop.org/show_bug.cgi?id=42739
Patch1: mingw32-cairo-A1_surfaces.patch
# Reset clip region when writing fallback results
# https://bugs.freedesktop.org/show_bug.cgi?id=42821
Patch2: mingw32-cairo-reset_clip.patch
BuildArch: noarch
BuildRequires: mingw32-filesystem >= 68
@ -57,6 +65,8 @@ Static version of the MinGW Windows Cairo library.
%prep
%setup -q -n cairo-%{version}
%patch0 -p0
%patch1 -p1 -b .A1_surfaces
%patch2 -p1 -b .reset_clip
%build
@ -107,6 +117,11 @@ find $RPM_BUILD_ROOT -name "*.la" -delete
%changelog
* Thu Feb 09 2012 Kalev Lember <kalevlember@gmail.com> - 1.10.2-7
- Apply patches recommended by the GTK+ Windows team:
- Fix A1 format win32 surfaces
- Reset clip region when writing fallback results
* Tue Jan 23 2012 Erik van Pienbroek <epienbro@fedoraproject.org> - 1.10.2-6
- Rebuild against libpng 1.5
- Dropped .la files