git.cworth.org Git - apitrace/blob - glretrace.py

   1 ##########################################################################
   2 #
   3 # Copyright 2010 VMware, Inc.
   4 # All Rights Reserved.
   5 #
   6 # Permission is hereby granted, free of charge, to any person obtaining a copy
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  10 # copies of the Software, and to permit persons to whom the Software is
  11 # furnished to do so, subject to the following conditions:
  12 #
  13 # The above copyright notice and this permission notice shall be included in
  14 # all copies or substantial portions of the Software.
  15 #
  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
  22 # THE SOFTWARE.
  23 #
  24 ##########################################################################/
  25
  26
  27 """GL retracer generator."""
  28
  29
  30 import stdapi
  31 import glapi
  32 from retrace import Retracer
  33
  34
  35 class GlRetracer(Retracer):
  36
  37     def retrace_function(self, function):
  38         Retracer.retrace_function(self, function)
  39
  40     array_pointer_function_names = set((
  41         "glVertexPointer",
  42         "glNormalPointer",
  43         "glColorPointer",
  44         "glIndexPointer",
  45         "glTexCoordPointer",
  46         "glEdgeFlagPointer",
  47         "glFogCoordPointer",
  48         "glSecondaryColorPointer",
  49
  50         "glInterleavedArrays",
  51
  52         "glVertexPointerEXT",
  53         "glNormalPointerEXT",
  54         "glColorPointerEXT",
  55         "glIndexPointerEXT",
  56         "glTexCoordPointerEXT",
  57         "glEdgeFlagPointerEXT",
  58         "glFogCoordPointerEXT",
  59         "glSecondaryColorPointerEXT",
  60
  61         "glVertexAttribPointer",
  62         "glVertexAttribPointerARB",
  63         "glVertexAttribPointerNV",
  64         "glVertexAttribIPointer",
  65         "glVertexAttribIPointerEXT",
  66         "glVertexAttribLPointer",
  67         "glVertexAttribLPointerEXT",
  68
  69         #"glMatrixIndexPointerARB",
  70     ))
  71
  72     draw_array_function_names = set([
  73         "glDrawArrays",
  74         "glDrawArraysEXT",
  75         "glDrawArraysIndirect",
  76         "glDrawArraysInstanced",
  77         "glDrawArraysInstancedARB",
  78         "glDrawArraysInstancedEXT",
  79         "glDrawMeshArraysSUN",
  80         "glMultiDrawArrays",
  81         "glMultiDrawArraysEXT",
  82         "glMultiModeDrawArraysIBM",
  83     ])
  84
  85     draw_elements_function_names = set([
  86         "glDrawElements",
  87         "glDrawElementsBaseVertex",
  88         "glDrawElementsIndirect",
  89         "glDrawElementsInstanced",
  90         "glDrawElementsInstancedARB",
  91         "glDrawElementsInstancedBaseVertex",
  92         "glDrawElementsInstancedEXT",
  93         "glDrawRangeElements",
  94         "glDrawRangeElementsBaseVertex",
  95         "glDrawRangeElementsEXT",
  96         #"glMultiDrawElements",
  97         #"glMultiDrawElementsBaseVertex",
  98         #"glMultiDrawElementsEXT",
  99         #"glMultiModeDrawElementsIBM",
 100     ])
 101
 102     def retrace_function_body(self, function):
 103         is_array_pointer = function.name in self.array_pointer_function_names
 104         is_draw_array = function.name in self.draw_array_function_names
 105         is_draw_elements = function.name in self.draw_elements_function_names
 106
 107         if is_array_pointer or is_draw_array or is_draw_elements:
 108             print '    if (glretrace::parser.version < 1) {'
 109
 110             if is_array_pointer or is_draw_array:
 111                 print '        GLint __array_buffer = 0;'
 112                 print '        glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &__array_buffer);'
 113                 print '        if (!__array_buffer) {'
 114                 self.fail_function(function)
 115                 print '        }'
 116
 117             if is_draw_elements:
 118                 print '        GLint __element_array_buffer = 0;'
 119                 print '        glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &__element_array_buffer);'
 120                 print '        if (!__element_array_buffer) {'
 121                 self.fail_function(function)
 122                 print '        }'
 123
 124             print '    }'
 125
 126         Retracer.retrace_function_body(self, function)
 127
 128     def call_function(self, function):
 129         if function.name == "glViewport":
 130             print '    bool reshape_window = false;'
 131             print '    if (x + width > glretrace::window_width) {'
 132             print '        glretrace::window_width = x + width;'
 133             print '        reshape_window = true;'
 134             print '    }'
 135             print '    if (y + height > glretrace::window_height) {'
 136             print '        glretrace::window_height = y + height;'
 137             print '        reshape_window = true;'
 138             print '    }'
 139             print '    if (reshape_window) {'
 140             print '        // XXX: does not always work'
 141             print '        glretrace::drawable->resize(glretrace::window_width, glretrace::window_height);'
 142             print '        reshape_window = false;'
 143             print '    }'
 144
 145         if function.name == "glEnd":
 146             print '    glretrace::insideGlBeginEnd = false;'
 147
 148         Retracer.call_function(self, function)
 149
 150         if function.name == "glBegin":
 151             print '    glretrace::insideGlBeginEnd = true;'
 152         elif function.name.startswith('gl'):
 153             # glGetError is not allowed inside glBegin/glEnd
 154             print '    glretrace::checkGlError(call.no);'
 155
 156         if function.name == 'glFlush':
 157             print '    if (!glretrace::double_buffer) {'
 158             print '        glretrace::frame_complete(call.no);'
 159             print '    }'
 160
 161     def extract_arg(self, function, arg, arg_type, lvalue, rvalue):
 162         if function.name in self.array_pointer_function_names and arg.name == 'pointer':
 163             print '    %s = static_cast<%s>(%s.blob());' % (lvalue, arg_type, rvalue)
 164             return
 165
 166         if function.name in self.draw_elements_function_names and arg.name == 'indices':
 167             print '    %s = %s.blob();' % (lvalue, rvalue)
 168             return
 169
 170         if function.name.startswith('glUniform') and function.args[0].name == arg.name == 'location':
 171             print '    GLint program = -1;'
 172             print '    glGetIntegerv(GL_CURRENT_PROGRAM, &program);'
 173
 174         Retracer.extract_arg(self, function, arg, arg_type, lvalue, rvalue)
 175
 176
 177 if __name__ == '__main__':
 178     print r'''
 179 #include <string.h>
 180
 181 #include "glproc.hpp"
 182 #include "glretrace.hpp"
 183
 184
 185 '''
 186     api = glapi.glapi
 187     api.add_function(glapi.memcpy)
 188     retracer = GlRetracer()
 189     retracer.retrace_api(api)