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
|
##########################################################################
#
# Copyright 2011 Jose Fonseca
# Copyright 2008-2010 VMware, Inc.
# All Rights Reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
##########################################################################/
"""GLX tracing generator."""
from gltrace import GlTracer
from specs.stdapi import Module, API
from specs.glapi import glapi
from specs.glxapi import glxapi
class GlxTracer(GlTracer):
def isFunctionPublic(self, function):
# The symbols visible in libGL.so can vary, so expose them all
return True
getProcAddressFunctionNames = [
"glXGetProcAddress",
"glXGetProcAddressARB",
]
createContextFunctionNames = [
'glXCreateContext',
'glXCreateContextAttribsARB',
'glXCreateContextWithConfigSGIX',
'glXCreateNewContext',
]
destroyContextFunctionNames = [
'glXDestroyContext',
]
makeCurrentFunctionNames = [
'glXMakeCurrent',
'glXMakeContextCurrent',
'glXMakeCurrentReadSGI',
]
def traceFunctionImplBody(self, function):
if function.name in self.destroyContextFunctionNames:
print ' gltrace::releaseContext((uintptr_t)ctx);'
GlTracer.traceFunctionImplBody(self, function)
if function.name in self.createContextFunctionNames:
print ' if (_result != NULL)'
print ' gltrace::createContext((uintptr_t)_result);'
if function.name in self.makeCurrentFunctionNames:
print ' if (_result) {'
print ' if (ctx != NULL)'
print ' gltrace::setContext((uintptr_t)ctx);'
print ' else'
print ' gltrace::clearContext();'
print ' }'
if function.name == 'glXBindTexImageEXT':
# FIXME: glXBindTexImageEXT gets called frequently, so we should
# avoid recording the same data over and over again somehow, e.g.:
# - get the pixels before and after glXBindTexImageEXT, and only
# emit emitFakeTexture2D when it changes
# - keep a global hash of the pixels
# FIXME: Handle mipmaps
print r'''
unsigned glx_target = 0;
_glXQueryDrawable(display, drawable, GLX_TEXTURE_TARGET_EXT, &glx_target);
GLenum target;
switch (glx_target) {
// FIXME
//case GLX_TEXTURE_1D_EXT:
// target = GL_TEXTURE_1D;
// break;
case GLX_TEXTURE_2D_EXT:
target = GL_TEXTURE_2D;
break;
case GLX_TEXTURE_RECTANGLE_EXT:
target = GL_TEXTURE_RECTANGLE;
break;
default:
os::log("apitrace: warning: %s: unsupported GLX_TEXTURE_TARGET_EXT 0x%u\n", __FUNCTION__, glx_target);
target = GL_NONE;
break;
}
GLint level = 0;
GLint internalformat = GL_NONE;
_glGetTexLevelParameteriv(target, level, GL_TEXTURE_INTERNAL_FORMAT, &internalformat);
// XXX: GL_TEXTURE_INTERNAL_FORMAT cannot be trusted on NVIDIA
// -- it sometimes returns GL_BGRA, even though GL_BGR/BGRA is
// not a valid internal format.
switch (internalformat) {
case GL_BGR:
internalformat = GL_RGB;
break;
case GL_BGRA:
internalformat = GL_RGBA;
break;
}
GLint width = 0;
_glGetTexLevelParameteriv(target, level, GL_TEXTURE_WIDTH, &width);
GLint height = 0;
_glGetTexLevelParameteriv(target, level, GL_TEXTURE_HEIGHT, &height);
GLint border = 0;
// XXX: We always use GL_RGBA format to read the pixels because:
// - some implementations (Mesa) seem to return bogus results
// for GLX_TEXTURE_FORMAT_EXT
// - hardware usually stores GL_RGB with 32bpp, so it should be
// faster to read/write
// - it is more robust against GL_(UN)PACK_ALIGNMENT state
// changes
// The drawback is that traces will be slightly bigger.
GLenum format = GL_RGBA;
GLenum type = GL_UNSIGNED_BYTE;
if (target && internalformat && height && width) {
// FIXME: This assumes (UN)PACK state (in particular
// GL_(UN)PACK_ROW_LENGTH) is set to its defaults. We
// really should temporarily reset the state here (and emit
// according fake calls) to cope when its not. At very
// least we need a heads up warning that this will cause
// problems.
GLint alignment = 4;
GLint row_stride = _align(width * 4, alignment);
GLvoid * pixels = malloc(height * row_stride);
_glGetTexImage(target, level, format, type, pixels);
'''
self.emitFakeTexture2D()
print r'''
free(pixels);
}
'''
if __name__ == '__main__':
print
print '#include <stdlib.h>'
print '#include <string.h>'
print
print '#include "trace_writer_local.hpp"'
print
print '// To validate our prototypes'
print '#define GL_GLEXT_PROTOTYPES'
print '#define GLX_GLXEXT_PROTOTYPES'
print
print '#include "glproc.hpp"'
print '#include "glsize.hpp"'
print
module = Module()
module.mergeModule(glxapi)
module.mergeModule(glapi)
api = API()
api.addModule(module)
tracer = GlxTracer()
tracer.traceApi(api)
|
