overlay/x11-libs/cairo/files/cairo-1.12.10-xlib-corruption.patch

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2013-10-31 04:36:15 +01:00
From fa4f48cccb6c7f4e1afb2ff4b98b906b7d8d4afc Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 23 Jan 2013 15:04:26 +0000
Subject: xlib: Do not upload the whole image just because we want an entire row
Fixes regression exposed by
commit a73e7ff0186176bc82cd3ae1432c054c1fd3aebd
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Sun Jan 6 11:29:27 2013 +0000
xlib: Simplify source creation by use of map-to-image
but ultimately from
commit 74941f822015cc50cd8477d0cf97f1a70dbff60b
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed Jan 2 22:27:55 2013 +0000
xlib: Use SHM transport for ordinary image uploads
Reported-by: Gökçen Eraslan <gokcen.eraslan@gmail.com>
Reported-by: Guillaume Ayoub <guillaume.ayoub@kozea.fr>
Reported-by: Emmanuel Benisty <benisty.e@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=59635
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
diff --git a/src/cairo-xlib-source.c b/src/cairo-xlib-source.c
index 24290f7..ca55278 100644
--- a/src/cairo-xlib-source.c
+++ b/src/cairo-xlib-source.c
@@ -1035,7 +1035,13 @@ surface_source (cairo_xlib_surface_t *dst,
status = _cairo_surface_unmap_image (&xsrc->base, image);
if (unlikely (status)) {
- cairo_surface_destroy (src);
+ cairo_surface_destroy (&xsrc->base);
+ return _cairo_surface_create_in_error (status);
+ }
+
+ status = _cairo_xlib_surface_put_shm (xsrc);
+ if (unlikely (status)) {
+ cairo_surface_destroy (&xsrc->base);
return _cairo_surface_create_in_error (status);
}
}
diff --git a/src/cairo-xlib-surface.c b/src/cairo-xlib-surface.c
index dbc677e..ee69b66 100644
--- a/src/cairo-xlib-surface.c
+++ b/src/cairo-xlib-surface.c
@@ -1139,26 +1139,24 @@ _cairo_xlib_surface_draw_image (cairo_xlib_surface_t *surface,
max_request_size = XMaxRequestSize (display->display);
if (max_request_size > 8192)
max_request_size = 8192;
- if (image->stride * image->height > max_request_size) {
+ if (width * height * 4 > max_request_size) {
shm_image = _cairo_xlib_surface_create_shm__image (surface,
image->pixman_format,
- image->width,
- image->height);
+ width, height);
if (shm_image && shm_image->status == CAIRO_STATUS_SUCCESS) {
cairo_image_surface_t *clone = (cairo_image_surface_t *) shm_image;
- if (clone->stride == image->stride) {
- memcpy (clone->data, image->data, clone->stride * clone->height);
- } else {
- pixman_image_composite32 (PIXMAN_OP_SRC,
- image->pixman_image, NULL, clone->pixman_image,
- 0, 0,
- 0, 0,
- 0, 0,
- image->width, image->height);
- }
+ pixman_image_composite32 (PIXMAN_OP_SRC,
+ image->pixman_image, NULL, clone->pixman_image,
+ src_x, src_y,
+ 0, 0,
+ 0, 0,
+ width, height);
ximage.obdata = _cairo_xlib_shm_surface_get_obdata (shm_image);
ximage.data = (char *)clone->data;
ximage.bytes_per_line = clone->stride;
+ ximage.width = width;
+ ximage.height = height;
+ src_x = src_y = 0;
}
}
} else
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