mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
synced 2026-05-19 07:38:07 +02:00
c25992479a
Damian Frank noted [http://lists.cairographics.org/archives/cairo/2009-May/017095.html] a performance problem with an older XServer with an unaccelerated composite - similar problems will be seen with non-XRender servers which will trigger extraneous fallbacks. The problem he found was that painting an ARGB32 image onto an RGB24 destination window (using SOURCE) was going via the RENDER protocol and not core. He was able to demonstrate that this could be worked around by declaring the pixel data as an RGB24 image. The issue is that the image is uploaded into a temporary pixmap of matching depth (i.e. 32 bit for ARGB32 and 24 bit for RGB23 data), however the core protocol can only blit between Drawables of matching depth - so without the work-around the Drawables are mismatched and we either need to use RENDER or fallback. This patch adds a content mask to _cairo_surface_clone_similar() to provide the extra bit of information to the backends for when it is possible for them to drop channels from the clone. This is used by the xlib backend to only create a 24 bit source when blitting to a Window.
236 lines
7.3 KiB
C
236 lines
7.3 KiB
C
/* cairo - a vector graphics library with display and print output
|
|
*
|
|
* Copyright © 2005 Red Hat, Inc
|
|
* Copyright © 2009 Chris Wilson
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it either under the terms of the GNU Lesser General Public
|
|
* License version 2.1 as published by the Free Software Foundation
|
|
* (the "LGPL") or, at your option, under the terms of the Mozilla
|
|
* Public License Version 1.1 (the "MPL"). If you do not alter this
|
|
* notice, a recipient may use your version of this file under either
|
|
* the MPL or the LGPL.
|
|
*
|
|
* You should have received a copy of the LGPL along with this library
|
|
* in the file COPYING-LGPL-2.1; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
* You should have received a copy of the MPL along with this library
|
|
* in the file COPYING-MPL-1.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License
|
|
* Version 1.1 (the "License"); you may not use this file except in
|
|
* compliance with the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
|
|
* OF ANY KIND, either express or implied. See the LGPL or the MPL for
|
|
* the specific language governing rights and limitations.
|
|
*
|
|
* The Original Code is the cairo graphics library.
|
|
*
|
|
* The Initial Developer of the Original Code is Red Hat, Inc.
|
|
*
|
|
* Contributor(s):
|
|
* Carl Worth <cworth@cworth.org>
|
|
* Chris Wilson <chris@chris-wilson.co.uk>
|
|
*/
|
|
|
|
/* This isn't a "real" surface, but just something to be used by the
|
|
* test suite to force use of a non-standard pixman image fallback - as
|
|
* may be exposed by xlib fallbacks with weird xservers, for example.
|
|
*/
|
|
|
|
#include "cairoint.h"
|
|
|
|
#include "test-fallback16-surface.h"
|
|
|
|
typedef struct _test_fallback16_surface {
|
|
cairo_surface_t base;
|
|
|
|
/* This is a cairo_image_surface to hold the actual contents. */
|
|
cairo_surface_t *backing;
|
|
} test_fallback16_surface_t;
|
|
|
|
static const cairo_surface_backend_t test_fallback16_surface_backend;
|
|
|
|
slim_hidden_proto (_cairo_test_fallback16_surface_create);
|
|
|
|
cairo_surface_t *
|
|
_cairo_test_fallback16_surface_create (cairo_content_t content,
|
|
int width,
|
|
int height)
|
|
{
|
|
test_fallback16_surface_t *surface;
|
|
cairo_surface_t *backing;
|
|
pixman_format_code_t format;
|
|
|
|
format = content & CAIRO_CONTENT_ALPHA ? PIXMAN_a1r5g5b5: PIXMAN_r5g6b5;
|
|
|
|
backing = _cairo_image_surface_create_with_pixman_format (NULL, format,
|
|
width, height,
|
|
-1);
|
|
if (cairo_surface_status (backing))
|
|
return backing;
|
|
|
|
surface = malloc (sizeof (test_fallback16_surface_t));
|
|
if (unlikely (surface == NULL)) {
|
|
cairo_surface_destroy (backing);
|
|
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
|
|
}
|
|
|
|
_cairo_surface_init (&surface->base,
|
|
&test_fallback16_surface_backend,
|
|
content);
|
|
|
|
surface->backing = backing;
|
|
|
|
return &surface->base;
|
|
}
|
|
slim_hidden_def (_cairo_test_fallback16_surface_create);
|
|
|
|
static cairo_surface_t *
|
|
_test_fallback16_surface_create_similar (void *abstract_surface,
|
|
cairo_content_t content,
|
|
int width,
|
|
int height)
|
|
{
|
|
assert (CAIRO_CONTENT_VALID (content));
|
|
|
|
return _cairo_test_fallback16_surface_create (content, width, height);
|
|
}
|
|
|
|
static cairo_status_t
|
|
_test_fallback16_surface_finish (void *abstract_surface)
|
|
{
|
|
test_fallback16_surface_t *surface = abstract_surface;
|
|
|
|
cairo_surface_destroy (surface->backing);
|
|
|
|
return CAIRO_STATUS_SUCCESS;
|
|
}
|
|
|
|
static cairo_status_t
|
|
_test_fallback16_surface_acquire_source_image (void *abstract_surface,
|
|
cairo_image_surface_t **image_out,
|
|
void **image_extra)
|
|
{
|
|
test_fallback16_surface_t *surface = abstract_surface;
|
|
|
|
return _cairo_surface_acquire_source_image (surface->backing,
|
|
image_out, image_extra);
|
|
}
|
|
|
|
static void
|
|
_test_fallback16_surface_release_source_image (void *abstract_surface,
|
|
cairo_image_surface_t *image,
|
|
void *image_extra)
|
|
{
|
|
test_fallback16_surface_t *surface = abstract_surface;
|
|
|
|
_cairo_surface_release_source_image (surface->backing,
|
|
image, image_extra);
|
|
}
|
|
|
|
static cairo_status_t
|
|
_test_fallback16_surface_acquire_dest_image (void *abstract_surface,
|
|
cairo_rectangle_int_t *interest_rect,
|
|
cairo_image_surface_t **image_out,
|
|
cairo_rectangle_int_t *image_rect_out,
|
|
void **image_extra)
|
|
{
|
|
test_fallback16_surface_t *surface = abstract_surface;
|
|
|
|
return _cairo_surface_acquire_dest_image (surface->backing,
|
|
interest_rect,
|
|
image_out,
|
|
image_rect_out,
|
|
image_extra);
|
|
}
|
|
|
|
static void
|
|
_test_fallback16_surface_release_dest_image (void *abstract_surface,
|
|
cairo_rectangle_int_t *interest_rect,
|
|
cairo_image_surface_t *image,
|
|
cairo_rectangle_int_t *image_rect,
|
|
void *image_extra)
|
|
{
|
|
test_fallback16_surface_t *surface = abstract_surface;
|
|
|
|
_cairo_surface_release_dest_image (surface->backing,
|
|
interest_rect,
|
|
image,
|
|
image_rect,
|
|
image_extra);
|
|
}
|
|
|
|
static cairo_status_t
|
|
_test_fallback16_surface_clone_similar (void *abstract_surface,
|
|
cairo_surface_t *src,
|
|
cairo_content_t content,
|
|
int src_x,
|
|
int src_y,
|
|
int width,
|
|
int height,
|
|
int *clone_offset_x,
|
|
int *clone_offset_y,
|
|
cairo_surface_t **clone_out)
|
|
{
|
|
test_fallback16_surface_t *surface = abstract_surface;
|
|
|
|
if (src->backend == surface->base.backend) {
|
|
*clone_offset_x = 0;
|
|
*clone_offset_y = 0;
|
|
*clone_out = cairo_surface_reference (src);
|
|
|
|
return CAIRO_STATUS_SUCCESS;
|
|
} else {
|
|
return _cairo_surface_clone_similar (surface->backing, src,
|
|
content,
|
|
src_x, src_y,
|
|
width, height,
|
|
clone_offset_x, clone_offset_y,
|
|
clone_out);
|
|
}
|
|
}
|
|
|
|
static cairo_int_status_t
|
|
_test_fallback16_surface_get_extents (void *abstract_surface,
|
|
cairo_rectangle_int_t *rectangle)
|
|
{
|
|
test_fallback16_surface_t *surface = abstract_surface;
|
|
|
|
return _cairo_surface_get_extents (surface->backing, rectangle);
|
|
}
|
|
|
|
static const cairo_surface_backend_t test_fallback16_surface_backend = {
|
|
CAIRO_INTERNAL_SURFACE_TYPE_TEST_FALLBACK,
|
|
_test_fallback16_surface_create_similar,
|
|
_test_fallback16_surface_finish,
|
|
_test_fallback16_surface_acquire_source_image,
|
|
_test_fallback16_surface_release_source_image,
|
|
_test_fallback16_surface_acquire_dest_image,
|
|
_test_fallback16_surface_release_dest_image,
|
|
_test_fallback16_surface_clone_similar,
|
|
NULL, /* composite */
|
|
NULL, /* fill_rectangles */
|
|
NULL, /* composite_trapezoids */
|
|
NULL, /* create_span_renderer */
|
|
NULL, /* check_span_renderer */
|
|
NULL, /* copy_page */
|
|
NULL, /* show_page */
|
|
NULL, /* set_clip_region */
|
|
NULL, /* intersect_clip_path */
|
|
_test_fallback16_surface_get_extents,
|
|
NULL, /* old_show_glyphs */
|
|
NULL, /* get_font_options */
|
|
NULL, /* flush */
|
|
NULL, /* mark_dirty_rectangle */
|
|
NULL, /* scaled_font_fini */
|
|
NULL, /* scaled_glyph_fini */
|
|
NULL, /* paint */
|
|
NULL, /* mask */
|
|
NULL, /* stroke */
|
|
NULL, /* fill */
|
|
NULL, /* show_glyphs */
|
|
NULL /* snapshot */
|
|
};
|