Allen Barnett wrote:
>
> Hi,
>
> Attached is a small example (test4.cpp) of using the Qt OpenGL widget to
> draw a white filled triangle. I was hoping that someone else could try
> it out and see if they get the same results I do. Here is a table of
> what I see:
>
> Video Rendering Method Result
> TDFX 3500 DRI Glide Direct Looks OK
> TDFX 3500 DRI Indirect Blank window
> TDFX 3500 Mesa 3.5 Looks OK
> Mach 64 DRI Indirect Triangle is shifted to the right
> Mach 64 Mesa 3.5 Looks OK
>
> This is using RH 7.1 and the 0.5 DRI release.
>
> A GLUT implementation (test5.c) looks OK in all cases.
I haven't run the program but I have one suggestion. See below.
------------------------------------------------------------------------------------------
> #include <iostream>
> #include <qapplication.h>
> #include <qgl.h>
>
> class GLView : public QGLWidget {
> void initializeGL ( void )
> {
> cout << "Mesa GL version: " << glGetString( GL_RENDERER ) << " "
> << glGetString( GL_VERSION ) << endl;
> cout << "Mesa GLU version: " << gluGetString( GLU_VERSION ) << endl;
> }
>
> void resizeGL ( int width, int height )
> {
> glMatrixMode( GL_MODELVIEW );
> glLoadIdentity();
> glOrtho( -1., 1., -1., 1., -1., 1. );
Try adding glViewport(0, 0, width, height) right here.
> }
>
> void paintGL ( void )
> {
> glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
>
> glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
> glBegin( GL_POLYGON );
> glVertex3f( 0., 0., 0. );
> glVertex3f( 1., 0., 0. );
> glVertex3f( 0., 1., 0. );
> glEnd();
> }
> };
>
> int main ( int argc, char* argv[] )
> {
> QApplication test4( argc, argv );
> GLView view;
> test4.setMainWidget( &view );
> view.resize( 300, 300 );
> view.show();
> return test4.exec();
> }
>
>
>------------------------------------------------------------------------------------------
> /*
> * Simple test
> */
> #include <stdio.h>
> #include <GL/glut.h>
>
> void init ( void )
> {
> glMatrixMode( GL_MODELVIEW );
> glLoadIdentity();
> glOrtho( -1., 1., -1., 1., -1., 1. );
> }
>
> void display ( void )
> {
> glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
>
> glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
> glBegin( GL_POLYGON );
> glVertex3f( 0., 0., 0. );
> glVertex3f( 1., 0., 0. );
> glVertex3f( 0., 1., 0. );
> glEnd();
>
> glutSwapBuffers();
> }
>
> int main ( int argc, char* argv[] )
> {
> glutInit( &argc, argv );
> glutInitDisplayMode( GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH );
> glutInitWindowSize( 300, 300 );
> glutCreateWindow( argv[0] );
> init();
>
> printf( "Mesa GL Version: %s %s\n", glGetString( GL_RENDERER ),
> glGetString( GL_VERSION ) );
>
> glutDisplayFunc( display );
> glutMainLoop();
> return 0;
> }
_______________________________________________
Dri-devel mailing list
[EMAIL PROTECTED]
http://lists.sourceforge.net/lists/listinfo/dri-devel
