1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/gfx/bitmap_platform_device_linux.h"
#include <gdk/gdk.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include "base/logging.h"
namespace gfx {
// We use this static factory function instead of the regular constructor so
// that we can create the pixel data before calling the constructor. This is
// required so that we can call the base class' constructor with the pixel
// data.
BitmapPlatformDeviceLinux* BitmapPlatformDeviceLinux::Create(
int width, int height, bool is_opaque) {
GdkPixbuf* pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, true, 8, width, height);
if (!pixbuf)
return NULL;
DCHECK_EQ(gdk_pixbuf_get_colorspace(pixbuf), GDK_COLORSPACE_RGB);
DCHECK_EQ(gdk_pixbuf_get_bits_per_sample(pixbuf), 8);
DCHECK(gdk_pixbuf_get_has_alpha(pixbuf));
DCHECK_EQ(gdk_pixbuf_get_n_channels(pixbuf), 4);
DCHECK_EQ(gdk_pixbuf_get_width(pixbuf), width);
DCHECK_EQ(gdk_pixbuf_get_height(pixbuf), height);
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, width, height,
gdk_pixbuf_get_rowstride(pixbuf));
bitmap.setPixels(gdk_pixbuf_get_pixels(pixbuf));
bitmap.setIsOpaque(is_opaque);
#ifndef NDEBUG
if (is_opaque) {
bitmap.eraseARGB(255, 0, 255, 128); // bright bluish green
}
#endif
// The device object will take ownership of the graphics context.
return new BitmapPlatformDeviceLinux(bitmap, pixbuf);
}
// The device will own the bitmap, which corresponds to also owning the pixel
// data. Therefore, we do not transfer ownership to the SkDevice's bitmap.
BitmapPlatformDeviceLinux::BitmapPlatformDeviceLinux(const SkBitmap& bitmap,
GdkPixbuf* pixbuf)
: PlatformDeviceLinux(bitmap),
pixbuf_(pixbuf) {
}
BitmapPlatformDeviceLinux::BitmapPlatformDeviceLinux(
const BitmapPlatformDeviceLinux& other)
: PlatformDeviceLinux(const_cast<BitmapPlatformDeviceLinux&>(
other).accessBitmap(true)) {
}
BitmapPlatformDeviceLinux::~BitmapPlatformDeviceLinux() {
if (pixbuf_) {
g_object_unref(pixbuf_);
pixbuf_ = NULL;
}
}
} // namespace gfx
|
