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

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   2 #
   3 # Copyright 2010 VMware, Inc.
   4 # All Rights Reserved.
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  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
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  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     draw_array_function_names = set([
  41         "glDrawArrays",
  42         "glDrawArraysEXT",
  43         "glDrawArraysIndirect",
  44         "glDrawArraysInstanced",
  45         "glDrawArraysInstancedARB",
  46         "glDrawArraysInstancedEXT",
  47         "glDrawMeshArraysSUN",
  48         "glMultiDrawArrays",
  49         "glMultiDrawArraysEXT",
  50         "glMultiModeDrawArraysIBM",
  51     ])
  52
  53     draw_elements_function_names = set([
  54         "glDrawElements",
  55         "glDrawElementsBaseVertex",
  56         "glDrawElementsIndirect",
  57         "glDrawElementsInstanced",
  58         "glDrawElementsInstancedARB",
  59         "glDrawElementsInstancedBaseVertex",
  60         "glDrawElementsInstancedEXT",
  61         "glDrawRangeElements",
  62         "glDrawRangeElementsBaseVertex",
  63         "glDrawRangeElementsEXT",
  64         "glMultiDrawElements",
  65         "glMultiDrawElementsBaseVertex",
  66         "glMultiDrawElementsEXT",
  67         "glMultiModeDrawElementsIBM",
  68     ])
  69
  70     def call_function(self, function):
  71         if (function.name in self.draw_array_function_names or
  72             function.name in self.draw_elements_function_names):
  73             print '    GLint __array_buffer = 0;'
  74             print '    glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &__array_buffer);'
  75             print '    if (!__array_buffer) {'
  76             self.fail_function(function)
  77             print '    }'
  78
  79         if function.name in self.draw_elements_function_names:
  80             print '    GLint __element_array_buffer = 0;'
  81             print '    glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &__element_array_buffer);'
  82             print '    if (!__element_array_buffer) {'
  83             self.fail_function(function)
  84             print '    }'
  85
  86         if function.name == "glViewport":
  87             print '    if (x + width > __window_width) {'
  88             print '        __window_width = x + width;'
  89             print '        __reshape_window = true;'
  90             print '    }'
  91             print '    if (y + height > __window_height) {'
  92             print '        __window_height = y + height;'
  93             print '        __reshape_window = true;'
  94             print '    }'
  95
  96         if function.name == "glEnd":
  97             print '    insideGlBeginEnd = false;'
  98
  99         Retracer.call_function(self, function)
 100
 101         if function.name == "glBegin":
 102             print '    insideGlBeginEnd = true;'
 103         else:
 104             # glGetError is not allowed inside glBegin/glEnd
 105             print '    checkGlError();'
 106
 107     pointer_function_names = set([
 108         "glColorPointer",
 109         "glColorPointerEXT",
 110         "glEdgeFlagPointer",
 111         "glEdgeFlagPointerEXT",
 112         "glFogCoordPointer",
 113         "glFogCoordPointerEXT",
 114         "glIndexPointer",
 115         "glIndexPointerEXT",
 116         "glMatrixIndexPointerARB",
 117         "glNormalPointer",
 118         "glNormalPointerEXT",
 119         "glSecondaryColorPointer",
 120         "glSecondaryColorPointerEXT",
 121         "glTexCoordPointer",
 122         "glTexCoordPointerEXT",
 123         "glVertexAttribLPointer",
 124         "glVertexAttribPointer",
 125         "glVertexAttribPointerARB",
 126         "glVertexAttribPointerNV",
 127         "glVertexPointer",
 128         "glVertexPointerEXT",
 129     ])
 130
 131     def extract_arg(self, function, arg, arg_type, lvalue, rvalue):
 132         if (function.name in self.pointer_function_names and arg.name == 'pointer' or
 133             function.name in self.draw_elements_function_names and arg.name == 'indices'):
 134             print '    if (dynamic_cast<Trace::Null *>(&%s)) {' % rvalue
 135             print '        %s = 0;' % (lvalue)
 136             print '    } else {'
 137             print '        %s = (%s)(uintptr_t)(%s);' % (lvalue, arg_type, rvalue)
 138             print '    }'
 139             return
 140
 141         if function.name.startswith('glUniform') and function.args[0].name == arg.name == 'location':
 142             print '    GLint program = -1;'
 143             print '    glGetIntegerv(GL_CURRENT_PROGRAM, &program);'
 144
 145         Retracer.extract_arg(self, function, arg, arg_type, lvalue, rvalue)
 146
 147
 148 if __name__ == '__main__':
 149     print r'''
 150 #include <string.h>
 151 #include <stdio.h>
 152 #include <iostream>
 153
 154 #include "glproc.hpp"
 155 #include <GL/glut.h>
 156
 157 static bool double_buffer = false;
 158 static bool insideGlBeginEnd = false;
 159
 160 static int __window_width = 256, __window_height = 256;
 161 bool __reshape_window = false;
 162
 163 unsigned __frame = 0;
 164 long long __startTime = 0;
 165 static enum {
 166     MODE_DISPLAY = 0,
 167     MODE_SNAPSHOT,
 168     MODE_COMPARE,
 169 } __mode = MODE_DISPLAY;
 170
 171 const char *__snapshot_prefix = "";
 172
 173
 174 static void
 175 checkGlError(void) {
 176     if (insideGlBeginEnd) {
 177         return;
 178     }
 179
 180     GLenum error = glGetError();
 181     if (error == GL_NO_ERROR) {
 182         return;
 183     }
 184
 185     std::cerr << "warning: glGetError() = ";
 186     switch (error) {
 187     case GL_INVALID_ENUM:
 188         std::cerr << "GL_INVALID_ENUM";
 189         break;
 190     case GL_INVALID_VALUE:
 191         std::cerr << "GL_INVALID_VALUE";
 192         break;
 193     case GL_INVALID_OPERATION:
 194         std::cerr << "GL_INVALID_OPERATION";
 195         break;
 196     case GL_STACK_OVERFLOW:
 197         std::cerr << "GL_STACK_OVERFLOW";
 198         break;
 199     case GL_STACK_UNDERFLOW:
 200         std::cerr << "GL_STACK_UNDERFLOW";
 201         break;
 202     case GL_OUT_OF_MEMORY:
 203         std::cerr << "GL_OUT_OF_MEMORY";
 204         break;
 205     case GL_INVALID_FRAMEBUFFER_OPERATION:
 206         std::cerr << "GL_INVALID_FRAMEBUFFER_OPERATION";
 207         break;
 208     case GL_TABLE_TOO_LARGE:
 209         std::cerr << "GL_TABLE_TOO_LARGE";
 210         break;
 211     default:
 212         std::cerr << error;
 213         break;
 214     }
 215     std::cerr << "\n";
 216 }
 217 '''
 218     api = glapi.glapi
 219     retracer = GlRetracer()
 220     retracer.retrace_api(glapi.glapi)
 221     print r'''
 222
 223 static Trace::Parser parser;
 224
 225 static void display_noop(void) {
 226 }
 227
 228 #include "image.hpp"
 229
 230 static void frame_complete(void) {
 231     ++__frame;
 232
 233     if (!__reshape_window && (__mode == MODE_SNAPSHOT || __mode == MODE_COMPARE)) {
 234         char filename[PATH_MAX];
 235
 236         snprintf(filename, sizeof filename, "%s%04u.png", __snapshot_prefix, __frame);
 237
 238         Image::Image *ref;
 239         if (__mode == MODE_COMPARE) {
 240             ref = Image::readPNG(filename);
 241             if (!ref) {
 242                 return;
 243             }
 244             if (verbosity)
 245                 std::cout << "Read " << filename << "\n";
 246         }
 247
 248         Image::Image src(__window_width, __window_height, true);
 249         glReadPixels(0, 0, __window_width, __window_height, GL_RGBA, GL_UNSIGNED_BYTE, src.pixels);
 250
 251         if (__mode == MODE_SNAPSHOT) {
 252             if (src.writePNG(filename) && verbosity) {
 253                 std::cout << "Wrote " << filename << "\n";
 254             }
 255         }
 256
 257         if (__mode == MODE_COMPARE) {
 258             std::cout << "Frame " << __frame << " average precision of " << src.compare(*ref) << " bits\n";
 259             delete ref;
 260         }
 261     }
 262
 263 }
 264
 265 static void display(void) {
 266     Trace::Call *call;
 267
 268     while ((call = parser.parse_call())) {
 269         if (call->name() == "glFlush") {
 270             glFlush();
 271             if (!double_buffer) {
 272                 frame_complete();
 273             }
 274         }
 275
 276         if (!retrace_call(*call)) {
 277             if (call->name() == "glXSwapBuffers" ||
 278                 call->name() == "wglSwapBuffers") {
 279                 if (double_buffer)
 280                     glutSwapBuffers();
 281                 else
 282                     glFlush();
 283                 frame_complete();
 284                 return;
 285             }
 286         }
 287     }
 288
 289     // Reached the end of trace
 290     glFlush();
 291
 292     long long endTime = OS::GetTime();
 293     float timeInterval = (endTime - __startTime) * 1.0E-6;
 294
 295     std::cout <<
 296         "Rendered " << __frame << " frames"
 297         " in " <<  timeInterval << " secs,"
 298         " average of " << (__frame/timeInterval) << " fps\n";
 299
 300     if (__mode == MODE_DISPLAY) {
 301         glutDisplayFunc(&display_noop);
 302         glutIdleFunc(NULL);
 303     } else {
 304         exit(0);
 305     }
 306 }
 307
 308 static void idle(void) {
 309     if (__reshape_window) {
 310         // XXX: doesn't quite work
 311         glutReshapeWindow(__window_width, __window_height);
 312         __reshape_window = false;
 313     }
 314     glutPostRedisplay();
 315 }
 316
 317 static void usage(void) {
 318     std::cout <<
 319         "Usage: glretrace [OPTION] TRACE\n"
 320         "Replay TRACE.\n"
 321         "\n"
 322         "  -c           compare against snapshots\n"
 323         "  -db          use a double buffer visual\n"
 324         "  -p PREFIX    snapshot prefix\n"
 325         "  -s           take snapshots\n"
 326         "  -v           verbose output\n";
 327 }
 328
 329 int main(int argc, char **argv)
 330 {
 331
 332     int i;
 333     for (i = 1; i < argc; ++i) {
 334         const char *arg = argv[i];
 335
 336         if (arg[0] != '-') {
 337             break;
 338         }
 339
 340         if (!strcmp(arg, "--")) {
 341             break;
 342         } else if (!strcmp(arg, "-c")) {
 343             __mode = MODE_COMPARE;
 344         } else if (!strcmp(arg, "-db")) {
 345             double_buffer = true;
 346         } else if (!strcmp(arg, "--help")) {
 347             usage();
 348             return 0;
 349         } else if (!strcmp(arg, "-p")) {
 350             __snapshot_prefix = argv[++i];
 351         } else if (!strcmp(arg, "-s")) {
 352             __mode = MODE_SNAPSHOT;
 353         } else if (!strcmp(arg, "-v")) {
 354             ++verbosity;
 355         } else {
 356             std::cerr << "error: unknown option " << arg << "\n";
 357             usage();
 358             return 1;
 359         }
 360     }
 361
 362     glutInit(&argc, argv);
 363     glutInitWindowPosition(0, 0);
 364     glutInitWindowSize(__window_width, __window_height);
 365     glutInitDisplayMode(GLUT_DEPTH | GLUT_RGB | (double_buffer ? GLUT_DOUBLE : GLUT_SINGLE));
 366     glutCreateWindow(argv[0]);
 367
 368     glutDisplayFunc(&display);
 369     glutIdleFunc(&idle);
 370
 371     for (GLuint h = 0; h < 1024; ++h) {
 372         __list_map[h] = h;
 373     }
 374
 375     for ( ; i < argc; ++i) {
 376         if (parser.open(argv[i])) {
 377             __startTime = OS::GetTime();
 378             glutMainLoop();
 379             parser.close();
 380         }
 381     }
 382
 383     return 0;
 384 }
 385
 386 '''