1 ##########################################################################
3 # Copyright 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
19 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 ##########################################################################/
27 """GL retracer generator."""
32 from retrace import Retracer
35 class GlRetracer(Retracer):
37 def retrace_function(self, function):
38 Retracer.retrace_function(self, function)
40 array_pointer_function_names = set((
48 "glSecondaryColorPointer",
50 "glInterleavedArrays",
52 #"glVertexPointerEXT",
53 #"glNormalPointerEXT",
56 #"glTexCoordPointerEXT",
57 #"glEdgeFlagPointerEXT",
58 #"glFogCoordPointerEXT",
59 #"glSecondaryColorPointerEXT",
61 "glVertexAttribPointer",
62 "glVertexAttribPointerARB",
63 "glVertexAttribPointerNV",
64 "glVertexAttribLPointer",
65 "glVertexAttribLPointerEXT",
67 #"glMatrixIndexPointerARB",
70 draw_array_function_names = set([
73 "glDrawArraysIndirect",
74 "glDrawArraysInstanced",
75 "glDrawArraysInstancedARB",
76 "glDrawArraysInstancedEXT",
77 "glDrawMeshArraysSUN",
79 "glMultiDrawArraysEXT",
80 "glMultiModeDrawArraysIBM",
83 draw_elements_function_names = set([
85 "glDrawElementsBaseVertex",
86 "glDrawElementsIndirect",
87 "glDrawElementsInstanced",
88 "glDrawElementsInstancedARB",
89 "glDrawElementsInstancedBaseVertex",
90 "glDrawElementsInstancedEXT",
91 "glDrawRangeElements",
92 "glDrawRangeElementsBaseVertex",
93 "glDrawRangeElementsEXT",
94 #"glMultiDrawElements",
95 #"glMultiDrawElementsBaseVertex",
96 #"glMultiDrawElementsEXT",
97 #"glMultiModeDrawElementsIBM",
100 def retrace_function_body(self, function):
101 is_array_pointer = function.name in self.array_pointer_function_names
102 is_draw_array = function.name in self.draw_array_function_names
103 is_draw_elements = function.name in self.draw_elements_function_names
105 if is_array_pointer or is_draw_array or is_draw_elements:
106 print ' if (Trace::Parser::version < 1) {'
108 if is_array_pointer or is_draw_array:
109 print ' GLint __array_buffer = 0;'
110 print ' glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &__array_buffer);'
111 print ' if (!__array_buffer) {'
112 self.fail_function(function)
116 print ' GLint __element_array_buffer = 0;'
117 print ' glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &__element_array_buffer);'
118 print ' if (!__element_array_buffer) {'
119 self.fail_function(function)
124 Retracer.retrace_function_body(self, function)
126 def call_function(self, function):
127 if function.name == "glViewport":
128 print ' bool reshape_window = false;'
129 print ' if (x + width > glretrace::window_width) {'
130 print ' glretrace::window_width = x + width;'
131 print ' reshape_window = true;'
133 print ' if (y + height > glretrace::window_height) {'
134 print ' glretrace::window_height = y + height;'
135 print ' reshape_window = true;'
137 print ' if (reshape_window) {'
138 print ' // XXX: does not always work'
139 print ' glretrace::drawable->resize(glretrace::window_width, glretrace::window_height);'
140 print ' reshape_window = false;'
143 if function.name == "glEnd":
144 print ' glretrace::insideGlBeginEnd = false;'
146 Retracer.call_function(self, function)
148 if function.name == "glBegin":
149 print ' glretrace::insideGlBeginEnd = true;'
151 # glGetError is not allowed inside glBegin/glEnd
152 print ' glretrace::checkGlError();'
154 def extract_arg(self, function, arg, arg_type, lvalue, rvalue):
155 if function.name in self.array_pointer_function_names and arg.name == 'pointer':
156 print ' %s = %s.blob();' % (lvalue, rvalue)
159 if function.name in self.draw_elements_function_names and arg.name == 'indices':
160 print ' %s = %s.blob();' % (lvalue, rvalue)
163 if function.name.startswith('glUniform') and function.args[0].name == arg.name == 'location':
164 print ' GLint program = -1;'
165 print ' glGetIntegerv(GL_CURRENT_PROGRAM, &program);'
167 Retracer.extract_arg(self, function, arg, arg_type, lvalue, rvalue)
170 if __name__ == '__main__':
172 #include "glproc.hpp"
173 #include "glretrace.hpp"
178 retracer = GlRetracer()
179 retracer.retrace_api(glapi.glapi)