##########################################################################/
+"""GL retracer generator."""
+
+
import stdapi
import glapi
from retrace import Retracer
class GlRetracer(Retracer):
- def filter_function(self, function):
- return function.name not in [
- "glNewBufferRegion",
- "glDeleteBufferRegion",
- "glReadBufferRegion",
- "glDrawBufferRegion",
- "glBufferRegionEnabled",
- ]
-
def retrace_function(self, function):
Retracer.retrace_function(self, function)
+ draw_array_function_names = set([
+ "glDrawArrays",
+ "glDrawArraysEXT",
+ "glDrawArraysIndirect",
+ "glDrawArraysInstanced",
+ "glDrawArraysInstancedARB",
+ "glDrawArraysInstancedEXT",
+ "glDrawMeshArraysSUN",
+ "glMultiDrawArrays",
+ "glMultiDrawArraysEXT",
+ "glMultiModeDrawArraysIBM",
+ ])
+
+ draw_elements_function_names = set([
+ "glDrawElements",
+ "glDrawElementsBaseVertex",
+ "glDrawElementsIndirect",
+ "glDrawElementsInstanced",
+ "glDrawElementsInstancedARB",
+ "glDrawElementsInstancedBaseVertex",
+ "glDrawElementsInstancedEXT",
+ "glDrawRangeElements",
+ "glDrawRangeElementsBaseVertex",
+ "glDrawRangeElementsEXT",
+ "glMultiDrawElements",
+ "glMultiDrawElementsBaseVertex",
+ "glMultiDrawElementsEXT",
+ "glMultiModeDrawElementsIBM",
+ ])
+
def call_function(self, function):
- if function.name in ("glDrawArrays", "glDrawElements", "glDrawRangeElements", "glMultiDrawElements"):
+ if (function.name in self.draw_array_function_names or
+ function.name in self.draw_elements_function_names):
print ' GLint __array_buffer = 0;'
print ' glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &__array_buffer);'
print ' if (!__array_buffer) {'
self.fail_function(function)
print ' }'
+ if function.name in self.draw_elements_function_names:
+ print ' GLint __element_array_buffer = 0;'
+ print ' glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &__element_array_buffer);'
+ print ' if (!__element_array_buffer) {'
+ self.fail_function(function)
+ print ' }'
+
+ if function.name == "glViewport":
+ print ' if (x + width > __window_width) {'
+ print ' __window_width = x + width;'
+ print ' __reshape_window = true;'
+ print ' }'
+ print ' if (y + height > __window_height) {'
+ print ' __window_height = y + height;'
+ print ' __reshape_window = true;'
+ print ' }'
+
if function.name == "glEnd":
print ' insideGlBeginEnd = false;'
+
Retracer.call_function(self, function)
+
if function.name == "glBegin":
print ' insideGlBeginEnd = true;'
else:
# glGetError is not allowed inside glBegin/glEnd
print ' checkGlError();'
+ pointer_function_names = set([
+ "glColorPointer",
+ "glColorPointerEXT",
+ "glEdgeFlagPointer",
+ "glEdgeFlagPointerEXT",
+ "glFogCoordPointer",
+ "glFogCoordPointerEXT",
+ "glIndexPointer",
+ "glIndexPointerEXT",
+ "glMatrixIndexPointerARB",
+ "glNormalPointer",
+ "glNormalPointerEXT",
+ "glSecondaryColorPointer",
+ "glSecondaryColorPointerEXT",
+ "glTexCoordPointer",
+ "glTexCoordPointerEXT",
+ "glVertexAttribLPointer",
+ "glVertexAttribPointer",
+ "glVertexAttribPointerARB",
+ "glVertexAttribPointerNV",
+ "glVertexPointer",
+ "glVertexPointerEXT",
+ ])
def extract_arg(self, function, arg, arg_type, lvalue, rvalue):
- if function.name in [
- "glColorPointer",
- "glEdgeFlagPointer",
- "glIndexPointer",
- "glNormalPointer",
- "glTexCoordPointer",
- "glVertexPointer",
- "glFogCoordPointer",
- "glSecondaryColorPointer",
- "glVertexAttribPointer",
- ] and arg.name == 'pointer':
+ if (function.name in self.pointer_function_names and arg.name == 'pointer' or
+ function.name in self.draw_elements_function_names and arg.name == 'indices'):
self.extract_pointer(function, arg, arg_type, lvalue, rvalue)
else:
Retracer.extract_arg(self, function, arg, arg_type, lvalue, rvalue)
if __name__ == '__main__':
- print
- print '#include <string.h>'
- print '#include <iostream>'
- print
- print '#include "glproc.hpp"'
- print '#include <GL/glut.h>'
- print
- print 'static bool double_buffer = false;'
- print 'static bool insideGlBeginEnd = false;'
- print
- print '''
+ print r'''
+#include <string.h>
+#include <iostream>
+
+#include "glproc.hpp"
+#include <GL/glut.h>
+
+static bool double_buffer = false;
+static bool insideGlBeginEnd = false;
+
+static int __window_width = 256, __window_height = 256;
+bool __reshape_window = false;
+
+unsigned __frame = 0;
+long long __startTime = 0;
+bool __screenshots = 0;
+
+
static void
checkGlError(void) {
if (insideGlBeginEnd) {
std::cerr << error;
break;
}
- std::cerr << "\\n";
+ std::cerr << "\n";
}
'''
api = glapi.glapi
retracer = GlRetracer()
retracer.retrace_api(glapi.glapi)
- print '''
+ print r'''
static Trace::Parser parser;
+static void display_noop(void) {
+}
+
+#include "bmp.hpp"
+
+static void frame_complete(void) {
+ ++__frame;
+
+ if (__screenshots && !__reshape_window) {
+ char filename[PATH_MAX];
+ snprintf(filename, sizeof filename, "screenshot_%04u.bmp", __frame);
+ unsigned char *pixels = new unsigned char[__window_height*__window_width*4];
+ glReadPixels(0, 0, __window_width, __window_height, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
+ BMP::write(filename, pixels, __window_width, __window_height, __window_width*4);
+ }
+
+}
+
static void display(void) {
Trace::Call *call;
while ((call = parser.parse_call())) {
if (call->name() == "glFlush") {
glFlush();
- return;
+ if (!double_buffer) {
+ frame_complete();
+ }
}
if (!retrace_call(*call)) {
glutSwapBuffers();
else
glFlush();
+ frame_complete();
return;
}
}
}
+ // Reached the end of trace
glFlush();
+
+ long long endTime = OS::GetTime();
+ float timeInterval = (endTime - __startTime) * 1.0E-6;
+
+ std::cout <<
+ "Rendered " << __frame << " frames"
+ " in " << timeInterval << " secs,"
+ " average of " << (__frame/timeInterval) << " fps\n";
+
+ glutDisplayFunc(&display_noop);
glutIdleFunc(NULL);
}
static void idle(void) {
+ if (__reshape_window) {
+ // XXX: doesn't quite work
+ glutReshapeWindow(__window_width, __window_height);
+ __reshape_window = false;
+ }
glutPostRedisplay();
}
if (!strcmp(arg, "--")) {
break;
- }
- else if (!strcmp(arg, "-db")) {
+ } else if (!strcmp(arg, "-db")) {
double_buffer = true;
+ } else if (!strcmp(arg, "-s")) {
+ __screenshots = true;
} else if (!strcmp(arg, "-v")) {
++verbosity;
} else {
- std::cerr << "error: unknown option " << arg << "\\n";
+ std::cerr << "error: unknown option " << arg << "\n";
return 1;
}
}
glutInit(&argc, argv);
glutInitWindowPosition(0, 0);
- glutInitWindowSize(800, 600);
+ glutInitWindowSize(__window_width, __window_height);
glutInitDisplayMode(GLUT_DEPTH | GLUT_RGB | (double_buffer ? GLUT_DOUBLE : GLUT_SINGLE));
glutCreateWindow(argv[0]);
for ( ; i < argc; ++i) {
if (parser.open(argv[i])) {
+ __startTime = OS::GetTime();
glutMainLoop();
parser.close();
}