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,
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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', 'GLuint', '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"),
87 def state_tracker_decl(self, api):
88 # Whether we need user arrays
89 print 'static inline bool __need_user_arrays(void)'
91 for camelcase_name, uppercase_name in self.arrays:
92 function_name = 'gl%sPointer' % camelcase_name
93 enable_name = 'GL_%s_ARRAY' % uppercase_name
94 binding_name = 'GL_%s_ARRAY_BUFFER_BINDING' % uppercase_name
95 print ' // %s' % function_name
96 print ' if (__glIsEnabled(%s)) {' % enable_name
97 print ' GLint __binding = 0;'
98 print ' __glGetIntegerv(%s, &__binding);' % binding_name
99 print ' if (!__binding) {'
100 print ' return true;'
105 print ' return false;'
109 print 'static void __trace_user_arrays(GLuint maxindex);'
112 array_pointer_function_names = set((
120 "glSecondaryColorPointer",
122 "glVertexPointerEXT",
123 "glNormalPointerEXT",
126 "glTexCoordPointerEXT",
127 "glEdgeFlagPointerEXT",
128 "glFogCoordPointerEXT",
129 "glSecondaryColorPointerEXT",
131 "glVertexAttribPointer",
132 "glVertexAttribPointerARB",
133 "glVertexAttribPointerNV",
134 "glVertexAttribLPointer",
135 "glVertexAttribLPointerEXT",
137 #"glMatrixIndexPointerARB",
140 draw_function_names = set((
143 'glDrawRangeElements',
146 interleaved_formats = [
159 'GL_T2F_C4F_N3F_V3F',
160 'GL_T4F_C4F_N3F_V4F',
163 def trace_function_impl_body(self, function):
164 # Defer tracing of user array pointers...
165 if function.name in self.array_pointer_function_names:
166 print ' GLint __array_buffer = 0;'
167 print ' __glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &__array_buffer);'
168 print ' if (!__array_buffer) {'
169 self.dispatch_function(function)
173 # ... to the draw calls
174 if function.name in self.draw_function_names:
175 print ' if (__need_user_arrays()) {'
176 arg_names = ', '.join([arg.name for arg in function.args[1:]])
177 print ' GLuint maxindex = __%s_maxindex(%s);' % (function.name, arg_names)
178 print ' __trace_user_arrays(maxindex);'
181 # And also break down glInterleavedArrays into the individual calls
182 if function.name == 'glInterleavedArrays':
183 print ' GLint __array_buffer = 0;'
184 print ' __glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &__array_buffer);'
185 print ' if (!__array_buffer) {'
186 self.dispatch_function(function)
189 # Initialize the enable flags
190 for camelcase_name, uppercase_name in self.arrays:
191 flag_name = '__' + uppercase_name.lower()
192 print ' GLboolean %s = GL_FALSE;' % flag_name
195 # Swicth for the interleaved formats
196 print ' switch (format) {'
197 for format in self.interleaved_formats:
198 print ' case %s:' % format
199 for camelcase_name, uppercase_name in self.arrays:
200 flag_name = '__' + uppercase_name.lower()
201 if format.find('_' + uppercase_name[0]) >= 0:
202 print ' %s = GL_TRUE;' % flag_name
209 # Emit fake glEnableClientState/glDisableClientState flags
210 for camelcase_name, uppercase_name in self.arrays:
211 flag_name = '__' + uppercase_name.lower()
212 enable_name = 'GL_%s_ARRAY' % uppercase_name
214 # Emit a fake function
216 print ' static const Trace::FunctionSig &__sig = %s ? __glEnableClientState_sig : __glDisableClientState_sig;' % flag_name
217 print ' unsigned __call = Trace::BeginEnter(__sig);'
218 print ' Trace::BeginArg(0);'
219 dump_instance(glapi.GLenum, enable_name)
220 print ' Trace::EndArg();'
221 print ' Trace::EndEnter();'
222 print ' Trace::BeginLeave(__call);'
223 print ' Trace::EndLeave();'
229 Tracer.trace_function_impl_body(self, function)
236 def gl_boolean(self, value):
237 return self.boolean_names[int(bool(value))]
239 def dump_arg_instance(self, function, arg):
240 if function.name in self.draw_function_names and arg.name == 'indices':
241 print ' GLint __element_array_buffer = 0;'
242 print ' __glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &__element_array_buffer);'
243 print ' if (!__element_array_buffer) {'
244 print ' Trace::LiteralBlob((const void *)%s, count*__gl_type_size(type));' % (arg.name)
246 print ' Trace::LiteralOpaque((const void *)%s);' % (arg.name)
250 Tracer.dump_arg_instance(self, function, arg)
252 def state_tracker_impl(self, api):
253 # A simple state tracker to track the pointer values
256 print 'static void __trace_user_arrays(GLuint maxindex)'
258 for camelcase_name, uppercase_name in self.arrays:
259 function_name = 'gl%sPointer' % camelcase_name
260 enable_name = 'GL_%s_ARRAY' % uppercase_name
261 binding_name = 'GL_%s_ARRAY_BUFFER_BINDING' % uppercase_name
262 function = api.get_function_by_name(function_name)
264 print ' // %s' % function.name
265 print ' if (__glIsEnabled(%s)) {;' % enable_name
266 print ' GLint __binding = 0;'
267 print ' __glGetIntegerv(%s, &__binding);' % binding_name
268 print ' if (!__binding) {'
270 # Get the arguments via glGet*
271 for arg in function.args:
272 arg_get_enum = 'GL_%s_ARRAY_%s' % (uppercase_name, arg.name.upper())
273 arg_get_function, arg_type = TypeGetter().visit(arg.type)
274 print ' %s %s = 0;' % (arg_type, arg.name)
275 print ' __%s(%s, &%s);' % (arg_get_function, arg_get_enum, arg.name)
277 arg_names = ', '.join([arg.name for arg in function.args[:-1]])
278 print ' size_t __size = __%s_size(%s, maxindex);' % (function.name, arg_names)
280 # Emit a fake function
281 print ' unsigned __call = Trace::BeginEnter(__%s_sig);' % (function.name,)
282 for arg in function.args:
283 assert not arg.output
284 print ' Trace::BeginArg(%u);' % (arg.index,)
285 if arg.name != 'pointer':
286 dump_instance(arg.type, arg.name)
288 print ' Trace::LiteralBlob((const void *)%s, __size);' % (arg.name)
289 print ' Trace::EndArg();'
291 print ' Trace::EndEnter();'
292 print ' Trace::BeginLeave(__call);'
293 print ' Trace::EndLeave();'