Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(262)

Side by Side Diff: ui/gfx/surface/transport_dib_android.cc

Issue 10351002: ui: Move surface/ directory out of gfx/, up to ui/. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: fix gpu DEPS Created 8 years, 7 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch | Annotate | Revision Log
« no previous file with comments | « ui/gfx/surface/transport_dib.h ('k') | ui/gfx/surface/transport_dib_linux.cc » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
(Empty)
1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "ui/gfx/surface/transport_dib.h"
6
7 #include <unistd.h>
8 #include <sys/stat.h>
9
10 #include "base/eintr_wrapper.h"
11 #include "base/logging.h"
12 #include "base/memory/scoped_ptr.h"
13 #include "base/shared_memory.h"
14 #include "skia/ext/platform_canvas.h"
15
16 TransportDIB::TransportDIB()
17 : size_(0) {
18 }
19
20 TransportDIB::TransportDIB(TransportDIB::Handle dib)
21 : shared_memory_(dib, false /* read write */),
22 size_(0) {
23 }
24
25 TransportDIB::~TransportDIB() {
26 }
27
28 // static
29 TransportDIB* TransportDIB::Create(size_t size, uint32 sequence_num) {
30 TransportDIB* dib = new TransportDIB;
31 // We will use ashmem_get_size_region() to figure out the size in Map(size).
32 if (!dib->shared_memory_.CreateAndMapAnonymous(size)) {
33 delete dib;
34 return NULL;
35 }
36
37 dib->size_ = size;
38 return dib;
39 }
40
41 // static
42 TransportDIB* TransportDIB::Map(Handle handle) {
43 scoped_ptr<TransportDIB> dib(CreateWithHandle(handle));
44 if (!dib->Map())
45 return NULL;
46 return dib.release();
47 }
48
49 // static
50 TransportDIB* TransportDIB::CreateWithHandle(Handle handle) {
51 return new TransportDIB(handle);
52 }
53
54 // static
55 bool TransportDIB::is_valid_handle(Handle dib) {
56 return dib.fd >= 0;
57 }
58
59 // static
60 bool TransportDIB::is_valid_id(Id id) {
61 // Same as is_valid_handle().
62 return id.fd >= 0;
63 }
64
65 skia::PlatformCanvas* TransportDIB::GetPlatformCanvas(int w, int h) {
66 if (!memory() && !Map())
67 return NULL;
68 scoped_ptr<skia::PlatformCanvas> canvas(new skia::PlatformCanvas);
69 if (!canvas->initialize(w, h, true, reinterpret_cast<uint8_t*>(memory()))) {
70 // TODO(husky): Remove when http://b/issue?id=4233182 is definitely fixed.
71 LOG(ERROR) << "Failed to initialize canvas of size " << w << "x" << h;
72 return NULL;
73 }
74 return canvas.release();
75 }
76
77 bool TransportDIB::Map() {
78 if (!is_valid_handle(handle()))
79 return false;
80 // We will use ashmem_get_size_region() to figure out the size in Map(size).
81 if (!shared_memory_.Map(0))
82 return false;
83
84 // TODO: Note that using created_size() below is a hack. See the comment in
85 // SharedMemory::Map().
86 size_ = shared_memory_.created_size();
87 return true;
88 }
89
90 void* TransportDIB::memory() const {
91 return shared_memory_.memory();
92 }
93
94 TransportDIB::Id TransportDIB::id() const {
95 // Use FileDescriptor as id.
96 return shared_memory_.handle();
97 }
98
99 TransportDIB::Handle TransportDIB::handle() const {
100 return shared_memory_.handle();
101 }
OLDNEW
« no previous file with comments | « ui/gfx/surface/transport_dib.h ('k') | ui/gfx/surface/transport_dib_linux.cc » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698