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
179
180
|
/*
* Copyright 2009, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// This file contains the declaration of the FileRequest class.
#ifndef O3D_CORE_CROSS_FILE_REQUEST_H_
#define O3D_CORE_CROSS_FILE_REQUEST_H_
#include <algorithm>
#include <string>
#include "base/scoped_ptr.h"
#include "core/cross/callback.h"
#include "core/cross/object_base.h"
#include "core/cross/pack.h"
#include "import/cross/raw_data.h"
namespace o3d {
typedef Closure FileRequestCallback;
// A FileRequest object is used to carry out an asynchronous request for a file
// to be loaded.
class FileRequest : public ObjectBase {
public:
enum Type {
TYPE_INVALID,
TYPE_TEXTURE,
TYPE_RAWDATA,
TYPE_MAX = TYPE_RAWDATA,
};
enum ReadyState { // These are copied from XMLHttpRequest.
STATE_INIT = 0,
STATE_OPEN = 1,
STATE_SENT = 2,
STATE_RECEIVING = 3,
STATE_LOADED = 4,
};
public:
typedef SmartPointer<FileRequest> Ref;
virtual ~FileRequest() { }
static FileRequest *Create(ServiceLocator* service_locator,
Pack *pack,
Type type);
static Type TypeFromString(String type) {
std::transform(type.begin(),
type.end(),
type.begin(),
::tolower);
if (type == "texture") {
return TYPE_TEXTURE;
}
if (type == "rawdata") {
return TYPE_RAWDATA;
}
return TYPE_INVALID;
}
static bool IsValidType(Type type) {
return type > TYPE_INVALID && type <= TYPE_MAX;
}
Pack *pack() const {
return pack_.Get(); // Set at creation time and never changed.
}
FileRequestCallback *onreadystatechange() const {
return onreadystatechange_.get();
}
void set_onreadystatechange(FileRequestCallback *onreadystatechange) {
onreadystatechange_.reset(onreadystatechange);
}
const String& uri() const {
return uri_;
}
void set_uri(const String& uri) {
uri_ = uri;
}
Type type() const {
return type_; // Set at creation time and never changed.
}
Texture *texture() const {
return texture_.Get();
}
RawData *data() const {
return data_.Get();
}
bool generate_mipmaps() const { return generate_mipmaps_; }
void set_generate_mipmaps(bool value) {
generate_mipmaps_ = value;
}
void set_texture(Texture *texture) {
CHECK(type_ == TYPE_TEXTURE);
texture_ = Texture::Ref(texture);
}
void set_data(RawData *data) {
CHECK(type_ == TYPE_RAWDATA);
data_ = RawData::Ref(data);
}
bool done() const {
return done_;
}
bool success() const {
return success_;
}
void set_success(bool success) {
success_ = success;
done_ = true;
pack_.Reset(); // Removes pack reference, allowing pack garbage collection.
}
int ready_state() const {
return ready_state_;
}
void set_ready_state(int state) {
ready_state_ = state;
}
const String& error() const {
return error_;
}
void set_error(const String& error) {
error_ = error;
}
O3D_DECL_CLASS(FileRequest, ObjectBase);
private:
FileRequest(ServiceLocator* service_locator,
Pack *pack,
Type type);
Pack::Ref pack_;
scoped_ptr<FileRequestCallback> onreadystatechange_;
String uri_;
Type type_;
Texture::Ref texture_; // Only used on a successful texture load.
RawData::Ref data_; // Only used on a successful RawData load.
bool generate_mipmaps_;
bool done_; // Set after completion/failure to indicate success_ is valid.
bool success_; // Set after completion/failure to indicate which it is.
int ready_state_; // Like the XMLHttpRequest variable of the same name.
String error_;
DISALLOW_IMPLICIT_CONSTRUCTORS(FileRequest);
}; // FileRequest
} // namespace o3d
#endif // O3D_CORE_CROSS_FILE_REQUEST_H_
|
