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
|
// 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 <cairo/cairo.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) {
cairo_surface_t* surface =
cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
width, height);
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, width, height,
cairo_image_surface_get_stride(surface));
bitmap.setPixels(cairo_image_surface_get_data(surface));
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, surface);
}
// 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,
cairo_surface_t* surface)
: PlatformDeviceLinux(bitmap),
surface_(surface) {
}
BitmapPlatformDeviceLinux::BitmapPlatformDeviceLinux(
const BitmapPlatformDeviceLinux& other)
: PlatformDeviceLinux(const_cast<BitmapPlatformDeviceLinux&>(
other).accessBitmap(true)) {
}
BitmapPlatformDeviceLinux::~BitmapPlatformDeviceLinux() {
if (surface_) {
cairo_surface_destroy(surface_);
surface_ = NULL;
}
}
} // namespace gfx
|
