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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
// Copyright 2015 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 "ui/gfx/mac/io_surface.h"
#include <stddef.h>
#include <stdint.h>
#include "base/feature_list.h"
#include "base/logging.h"
#include "base/mac/mac_util.h"
#include "base/mac/mach_logging.h"
#include "base/macros.h"
#include "ui/gfx/buffer_format_util.h"
namespace gfx {
namespace {
const base::Feature kIOSurfaceClearYosemite{"IOSurfaceClearYosemite",
base::FEATURE_ENABLED_BY_DEFAULT};
void AddIntegerValue(CFMutableDictionaryRef dictionary,
const CFStringRef key,
int32_t value) {
base::ScopedCFTypeRef<CFNumberRef> number(
CFNumberCreate(NULL, kCFNumberSInt32Type, &value));
CFDictionaryAddValue(dictionary, key, number.get());
}
int32_t BytesPerElement(gfx::BufferFormat format, int plane) {
switch (format) {
case gfx::BufferFormat::R_8:
DCHECK_EQ(plane, 0);
return 1;
case gfx::BufferFormat::BGRA_8888:
case gfx::BufferFormat::RGBA_8888:
DCHECK_EQ(plane, 0);
return 4;
case gfx::BufferFormat::YUV_420_BIPLANAR:
static int32_t bytes_per_element[] = {1, 2};
DCHECK_LT(static_cast<size_t>(plane), arraysize(bytes_per_element));
return bytes_per_element[plane];
case gfx::BufferFormat::UYVY_422:
DCHECK_EQ(plane, 0);
return 2;
case gfx::BufferFormat::ATC:
case gfx::BufferFormat::ATCIA:
case gfx::BufferFormat::DXT1:
case gfx::BufferFormat::DXT5:
case gfx::BufferFormat::ETC1:
case gfx::BufferFormat::RGBA_4444:
case gfx::BufferFormat::RGBX_8888:
case gfx::BufferFormat::BGRX_8888:
case gfx::BufferFormat::YUV_420:
NOTREACHED();
return 0;
}
NOTREACHED();
return 0;
}
int32_t PixelFormat(gfx::BufferFormat format) {
switch (format) {
case gfx::BufferFormat::R_8:
return 'L008';
case gfx::BufferFormat::BGRA_8888:
case gfx::BufferFormat::RGBA_8888:
return 'BGRA';
case gfx::BufferFormat::YUV_420_BIPLANAR:
return '420v';
case gfx::BufferFormat::UYVY_422:
return '2vuy';
case gfx::BufferFormat::ATC:
case gfx::BufferFormat::ATCIA:
case gfx::BufferFormat::DXT1:
case gfx::BufferFormat::DXT5:
case gfx::BufferFormat::ETC1:
case gfx::BufferFormat::RGBA_4444:
case gfx::BufferFormat::RGBX_8888:
case gfx::BufferFormat::BGRX_8888:
case gfx::BufferFormat::YUV_420:
NOTREACHED();
return 0;
}
NOTREACHED();
return 0;
}
} // namespace
namespace internal {
// static
mach_port_t IOSurfaceMachPortTraits::Retain(mach_port_t port) {
kern_return_t kr =
mach_port_mod_refs(mach_task_self(), port, MACH_PORT_RIGHT_SEND, 1);
MACH_LOG_IF(ERROR, kr != KERN_SUCCESS, kr)
<< "IOSurfaceMachPortTraits::Retain mach_port_mod_refs";
return port;
}
// static
void IOSurfaceMachPortTraits::Release(mach_port_t port) {
kern_return_t kr =
mach_port_mod_refs(mach_task_self(), port, MACH_PORT_RIGHT_SEND, -1);
MACH_LOG_IF(ERROR, kr != KERN_SUCCESS, kr)
<< "IOSurfaceMachPortTraits::Release mach_port_mod_refs";
}
} // namespace internal
IOSurfaceRef CreateIOSurface(const gfx::Size& size, gfx::BufferFormat format) {
size_t num_planes = gfx::NumberOfPlanesForBufferFormat(format);
base::ScopedCFTypeRef<CFMutableArrayRef> planes(CFArrayCreateMutable(
kCFAllocatorDefault, num_planes, &kCFTypeArrayCallBacks));
// Don't specify plane information unless there are indeed multiple planes
// because DisplayLink drivers do not support this.
// http://crbug.com/527556
if (num_planes > 1) {
for (size_t plane = 0; plane < num_planes; ++plane) {
size_t factor = gfx::SubsamplingFactorForBufferFormat(format, plane);
base::ScopedCFTypeRef<CFMutableDictionaryRef> plane_info(
CFDictionaryCreateMutable(kCFAllocatorDefault, 0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks));
AddIntegerValue(plane_info, kIOSurfacePlaneWidth, size.width() / factor);
AddIntegerValue(plane_info, kIOSurfacePlaneHeight,
size.height() / factor);
AddIntegerValue(plane_info, kIOSurfacePlaneBytesPerElement,
BytesPerElement(format, plane));
CFArrayAppendValue(planes, plane_info);
}
}
base::ScopedCFTypeRef<CFMutableDictionaryRef> properties(
CFDictionaryCreateMutable(kCFAllocatorDefault, 0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks));
AddIntegerValue(properties, kIOSurfaceWidth, size.width());
AddIntegerValue(properties, kIOSurfaceHeight, size.height());
AddIntegerValue(properties, kIOSurfacePixelFormat, PixelFormat(format));
if (num_planes > 1) {
CFDictionaryAddValue(properties, kIOSurfacePlaneInfo, planes);
} else {
AddIntegerValue(properties, kIOSurfaceBytesPerElement,
BytesPerElement(format, 0));
}
IOSurfaceRef surface = IOSurfaceCreate(properties);
// For unknown reasons, triggering this lock on OS X 10.9, on certain GPUs,
// causes PDFs to render incorrectly. Hopefully this check can be removed once
// pdfium switches to a Skia backend on Mac.
// https://crbug.com/594343.
bool should_clear = !base::mac::IsOSMavericks();
if (base::mac::IsOSYosemite())
should_clear = base::FeatureList::IsEnabled(kIOSurfaceClearYosemite);
if (should_clear) {
// Zero-initialize the IOSurface. Calling IOSurfaceLock/IOSurfaceUnlock
// appears to be sufficient. https://crbug.com/584760#c17
IOReturn r = IOSurfaceLock(surface, 0, nullptr);
DCHECK_EQ(kIOReturnSuccess, r);
r = IOSurfaceUnlock(surface, 0, nullptr);
DCHECK_EQ(kIOReturnSuccess, r);
}
return surface;
}
} // namespace gfx
|
