1 ##########################################################################
3 # Copyright 2008-2010 VMware, Inc.
6 # Permission is hereby granted, free of charge, to any person obtaining a copy
7 # of this software and associated documentation files (the "Software"), to deal
8 # in the Software without restriction, including without limitation the rights
9 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 # copies of the Software, and to permit persons to whom the Software is
11 # furnished to do so, subject to the following conditions:
13 # The above copyright notice and this permission notice shall be included in
14 # all copies or substantial portions of the Software.
16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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21 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 ##########################################################################/
27 """GL tracing generator."""
32 from glxapi import glxapi
33 from trace import Tracer, dump_instance
36 class TypeGetter(stdapi.Visitor):
37 '''Determine which glGet*v function that matches the specified type.'''
39 def visit_const(self, const):
40 return self.visit(const.type)
42 def visit_alias(self, alias):
43 if alias.expr == 'GLboolean':
44 return 'glGetBooleanv', alias.expr
45 elif alias.expr == 'GLdouble':
46 return 'glGetDoublev', alias.expr
47 elif alias.expr == 'GLfloat':
48 return 'glGetFloatv', alias.expr
49 elif alias.expr in ('GLint', 'GLsizei'):
50 return 'glGetIntegerv', 'GLint'
55 def visit_enum(self, enum):
56 return 'glGetIntegerv', 'GLint'
58 def visit_bitmask(self, bitmask):
59 return 'glGetIntegerv', 'GLint'
61 def visit_opaque(self, pointer):
62 return 'glGetPointerv', 'GLvoid *'
65 class GlTracer(Tracer):
67 def header(self, api):
68 Tracer.header(self, api)
69 self.state_tracker_decl(api)
71 def footer(self, api):
72 Tracer.footer(self, api)
73 self.state_tracker_impl(api)
80 ("TexCoord", "TEXTURE_COORD"),
81 ("EdgeFlag", "EDGE_FLAG"),
82 ("FogCoord", "FOG_COORD"),
83 ("SecondaryColor", "SECONDARY_COLOR"),
86 def state_tracker_decl(self, api):
87 # Whether we need user arrays
88 print 'static inline bool __need_user_arrays(void)'
90 for camelcase_name, uppercase_name in self.arrays:
91 function_name = 'gl%sPointer' % camelcase_name
92 enable_name = 'GL_%s_ARRAY' % uppercase_name
93 binding_name = 'GL_%s_ARRAY_BUFFER_BINDING' % uppercase_name
94 print ' // %s' % function_name
96 print ' GLboolean __enabled = GL_FALSE;'
97 print ' __glGetBooleanv(%s, &__enabled);' % enable_name
98 print ' if (__enabled) {'
99 print ' GLint __binding = 0;'
100 print ' __glGetIntegerv(%s, &__binding);' % binding_name
101 print ' if (!__binding) {'
102 print ' return true;'
107 print ' return false;'
111 print 'static void __trace_user_arrays(GLuint maxindex);'
114 array_pointer_function_names = set((
122 "glSecondaryColorPointer",
124 "glInterleavedArrays",
126 #"glVertexPointerEXT",
127 #"glNormalPointerEXT",
128 #"glColorPointerEXT",
129 #"glIndexPointerEXT",
130 #"glTexCoordPointerEXT",
131 #"glEdgeFlagPointerEXT",
132 #"glFogCoordPointerEXT",
133 #"glSecondaryColorPointerEXT",
135 #"glVertexAttribPointer",
136 #"glVertexAttribPointerARB",
137 #"glVertexAttribPointerNV",
138 #"glVertexAttribLPointer",
140 #"glMatrixIndexPointerARB",
143 draw_function_names = set((
146 'glDrawRangeElements',
149 def trace_function_impl_body(self, function):
150 # Defer tracing of user array pointers...
151 if function.name in self.array_pointer_function_names:
152 print ' GLint __array_buffer = 0;'
153 print ' __glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &__array_buffer);'
154 print ' if (!__array_buffer) {'
155 self.dispatch_function(function)
159 # ... to the draw calls
160 if function.name in self.draw_function_names:
161 print ' if (__need_user_arrays()) {'
162 arg_names = ', '.join([arg.name for arg in function.args[1:]])
163 print ' GLuint maxindex = __%s_maxindex(%s);' % (function.name, arg_names)
164 print ' __trace_user_arrays(maxindex);'
167 Tracer.trace_function_impl_body(self, function)
169 def dump_arg_instance(self, function, arg):
170 if function.name in self.draw_function_names and arg.name == 'indices':
171 print ' GLint __element_array_buffer = 0;'
172 print ' __glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &__element_array_buffer);'
173 print ' if (!__element_array_buffer) {'
174 print ' Trace::LiteralBlob((const void *)%s, count*__gl_type_size(type));' % (arg.name)
176 print ' Trace::LiteralOpaque((const void *)%s);' % (arg.name)
180 Tracer.dump_arg_instance(self, function, arg)
182 def state_tracker_impl(self, api):
183 # A simple state tracker to track the pointer values
186 print 'static void __trace_user_arrays(GLuint maxindex)'
188 for camelcase_name, uppercase_name in self.arrays:
189 function_name = 'gl%sPointer' % camelcase_name
190 enable_name = 'GL_%s_ARRAY' % uppercase_name
191 binding_name = 'GL_%s_ARRAY_BUFFER_BINDING' % uppercase_name
192 function = api.get_function_by_name(function_name)
194 print ' // %s' % function.name
196 print ' GLboolean __enabled = GL_FALSE;'
197 print ' __glGetBooleanv(%s, &__enabled);' % enable_name
198 print ' if (__enabled) {'
199 print ' GLint __binding = 0;'
200 print ' __glGetIntegerv(%s, &__binding);' % binding_name
201 print ' if (!__binding) {'
203 # Get the arguments via glGet*
204 for arg in function.args:
205 arg_get_enum = 'GL_%s_ARRAY_%s' % (uppercase_name, arg.name.upper())
206 arg_get_function, arg_type = TypeGetter().visit(arg.type)
207 print ' %s %s = 0;' % (arg_type, arg.name)
208 print ' __%s(%s, &%s);' % (arg_get_function, arg_get_enum, arg.name)
210 arg_names = ', '.join([arg.name for arg in function.args[:-1]])
211 print ' size_t __size = __%s_size(%s, maxindex);' % (function.name, arg_names)
213 # Emit a fake function
214 print ' unsigned __call = Trace::BeginEnter(__%s_sig);' % (function.name,)
215 for arg in function.args:
216 assert not arg.output
217 print ' Trace::BeginArg(%u);' % (arg.index,)
218 if arg.name != 'pointer':
219 dump_instance(arg.type, arg.name)
221 print ' Trace::LiteralBlob((const void *)%s, __size);' % (arg.name)
222 print ' Trace::EndArg();'
224 print ' Trace::EndEnter();'
225 print ' Trace::BeginLeave(__call);'
226 print ' Trace::EndLeave();'