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
|
/*
* Copyright 2011, The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <pthread.h>
#include <cutils/log.h>
extern "C" {
#include "liblzf/lzf.h"
}
#include "gltrace_context.h"
namespace android {
namespace gltrace {
using ::android::gl_hooks_t;
static pthread_key_t sTLSKey = -1;
static pthread_once_t sPthreadOnceKey = PTHREAD_ONCE_INIT;
void createTLSKey() {
pthread_key_create(&sTLSKey, NULL);
}
GLTraceContext *getGLTraceContext() {
return (GLTraceContext*) pthread_getspecific(sTLSKey);
}
void setGLTraceContext(GLTraceContext *c) {
pthread_setspecific(sTLSKey, c);
}
void setupTraceContextThreadSpecific(GLTraceContext *context) {
pthread_once(&sPthreadOnceKey, createTLSKey);
setGLTraceContext(context);
}
void releaseContext() {
GLTraceContext *c = getGLTraceContext();
if (c != NULL) {
delete c;
setGLTraceContext(NULL);
}
}
GLTraceState::GLTraceState(TCPStream *stream) {
mTraceContextIds = 0;
mStream = stream;
}
GLTraceState::~GLTraceState() {
if (mStream) {
mStream->closeStream();
mStream = NULL;
}
}
TCPStream *GLTraceState::getStream() {
return mStream;
}
GLTraceContext *GLTraceState::createTraceContext(int version, EGLContext eglContext) {
int id = __sync_fetch_and_add(&mTraceContextIds, 1);
const size_t DEFAULT_BUFFER_SIZE = 8192;
BufferedOutputStream *stream = new BufferedOutputStream(mStream, DEFAULT_BUFFER_SIZE);
GLTraceContext *traceContext = new GLTraceContext(id, stream);
mPerContextState[eglContext] = traceContext;
return traceContext;
}
GLTraceContext *GLTraceState::getTraceContext(EGLContext c) {
return mPerContextState[c];
}
GLTraceContext::GLTraceContext(int id, BufferedOutputStream *stream) {
mId = id;
fbcontents = fbcompressed = NULL;
fbcontentsSize = 0;
mBufferedOutputStream = stream;
}
int GLTraceContext::getId() {
return mId;
}
void GLTraceContext::resizeFBMemory(unsigned minSize) {
if (fbcontentsSize >= minSize) {
return;
}
if (fbcontents != NULL) {
free(fbcontents);
free(fbcompressed);
}
fbcontents = malloc(minSize);
fbcompressed = malloc(minSize);
fbcontentsSize = minSize;
}
/** obtain a pointer to the compressed framebuffer image */
void GLTraceContext::getCompressedFB(void **fb, unsigned *fbsize, unsigned *fbwidth,
unsigned *fbheight, FBBinding fbToRead) {
int viewport[4] = {};
hooks->gl.glGetIntegerv(GL_VIEWPORT, viewport);
unsigned fbContentsSize = viewport[2] * viewport[3] * 4;
resizeFBMemory(fbContentsSize);
// switch current framebuffer binding if necessary
GLint currentFb = -1;
bool fbSwitched = false;
if (fbToRead != CURRENTLY_BOUND_FB) {
hooks->gl.glGetIntegerv(GL_FRAMEBUFFER_BINDING, ¤tFb);
if (currentFb != 0) {
hooks->gl.glBindFramebuffer(GL_FRAMEBUFFER, 0);
fbSwitched = true;
}
}
hooks->gl.glReadPixels(viewport[0], viewport[1], viewport[2], viewport[3],
GL_RGBA, GL_UNSIGNED_BYTE, fbcontents);
// switch back to previously bound buffer if necessary
if (fbSwitched) {
hooks->gl.glBindFramebuffer(GL_FRAMEBUFFER, currentFb);
}
*fbsize = lzf_compress(fbcontents, fbContentsSize, fbcompressed, fbContentsSize);
*fb = fbcompressed;
*fbwidth = viewport[2];
*fbheight = viewport[3];
}
void GLTraceContext::traceGLMessage(GLMessage *msg) {
mBufferedOutputStream->send(msg);
GLMessage_Function func = msg->function();
if (func == GLMessage::eglSwapBuffers
|| func == GLMessage::glDrawArrays
|| func == GLMessage::glDrawElements) {
mBufferedOutputStream->flush();
}
}
}; // namespace gltrace
}; // namespace android
|
