Attachment 67475 Details for Bug 55175 – small program to reproduce memory leak. compile with g++ -o memleaker memleaker.c -I/usr/include -lglut -lGLU -lGL -lXext -lX11 -lm -lXi -lXmu

small program to reproduce memory leak. compile with g++ -o memleaker memleaker.c -I/usr/include -lglut -lGLU -lGL -lXext -lX11 -lm -lXi -lXmu

memleaker.c (text/plain), 4.30 KB, created by Andreas Lampersperger on 2012-09-21 06:56:27 UTC

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Creator: Andreas Lampersperger

Created: 2012-09-21 06:56:27 UTC

Size: 4.30 KB

patch

obsolete

>//------------------------------------------------------------------------
>// Demonstrate memory leak for i965
>// Only specific combination of different primitive types with some regular
>// changes of attributes shows the memory leak
>//------------------------------------------------------------------------
>
>#include <stdio.h>
>#include <stdlib.h>
>#include <GL/glut.h>
>#include <time.h>
>#include <math.h> // sin, cos
>
>#define MY_PI 3.1415
>
>int loop = 1; // Anzahl Bilder zum Zeichnen
>
>
>//----------------------------------------------------------------------------
>void init() {
>    GLfloat lgt_ambient[4] = { 0.2f, 0.2f, 0.2f, 1.0f };
>    GLfloat lgt_diffuse[4] = { 0.8f, 0.8f, 0.8f, 1.0f };
>    glLightModelfv( GL_LIGHT_MODEL_AMBIENT, lgt_ambient );
>    glLightModeli( GL_LIGHT_MODEL_LOCAL_VIEWER, 0 );
>    glLightModeli( GL_LIGHT_MODEL_TWO_SIDE, 0 );
>    glLightfv( GL_LIGHT0, GL_DIFFUSE , lgt_diffuse );
>    glLightfv( GL_LIGHT0, GL_SPECULAR, lgt_diffuse );
>    glLightfv( GL_LIGHT0, GL_AMBIENT, lgt_ambient );
>	glClearColor( 0.1, 0.6, 0.1, 0.0 );
>    glEnable( GL_COLOR_MATERIAL );
>    glEnable( GL_LIGHTING );
>    glEnable( GL_LIGHT0 );
>    glEnable( GL_CULL_FACE );
>    glCullFace( GL_BACK );
>}
>
>
>//----------------------------------------------------------------------------
>void display() {
>	for( int id = 0; id < loop; ) { // each new loop eats memory
>		while (loop == 1) {     // when loop == 1 do an endless loop
>			id++;
>			if (((id % 100) == 0 ) && ( loop > 1)) {
>				double q = 100.0 * (double)id / double(loop);
>				printf("  %5d (%2.0lf %%)\n", id, q);
>			}
>			else {
>				printf("  %5d \n", id);
>			}
>			glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
>			glPushMatrix();
>			double rot = 0.9 * id;
>			double sca = 0.5;
>			glRotatef( rot, 20, rot, 1.0 );
>			glScalef( sca, sca, sca );
>
>			const float r = 0.1f;
>			glPushAttrib( GL_ENABLE_BIT | GL_LIGHTING_BIT );
>			glDisable( GL_CULL_FACE );
>			glLightModeli( GL_LIGHT_MODEL_TWO_SIDE, 1 ); // omit this to have no more memory leak
>			glBegin( GL_QUADS );
>				glNormal3f( +0.0f, +0.0f, +1.0f );
>				glVertex3f( +r, +0.0f, +0.0f );
>				glVertex3f( +0.0f, +r, +0.0f );
>				glVertex3f( -r, +0.0f, +0.0f );
>				glVertex3f( +0.0f, -r, +0.0f );
>				glNormal3f( +0.0f, +1.0f, +0.0f );
>				glVertex3f( +r, +0.0f, +0.0f );
>				glVertex3f( +0.0f, +0.0f, +r );
>				glVertex3f( -r, +0.0f, +0.0f );
>				glVertex3f( +0.0f, +0.0f, -r );
>			glEnd();
>			glPopAttrib();
>
>			glPushAttrib( GL_ENABLE_BIT );
>			glDisable( GL_LIGHTING ); // omit this to have no more memory leak
>			glBegin( GL_LINES );
>				glVertex3d( 0.0, 0.0, 1.0 );
>				glVertex3d( 0.0, 0.0, 0.0 );
>			glEnd();
>			glPopAttrib();
>
>			const int res = 8;
>			const double delta = 2.0 * MY_PI / res;
>			glPushAttrib( GL_ENABLE_BIT | GL_LIGHTING_BIT );
>			glDisable( GL_CULL_FACE );
>			glBegin( GL_TRIANGLE_FAN );
>			    glNormal3f( 0.0f, 0.0f, -1.0f );
>			    glVertex3d( 0.0, 0.0, 0.0 );
>			    for( int tri = res; tri >= 0; tri-- ) {
>				double angle = tri * delta;
>				double ca = cos(angle);
>				double sa = sin(angle);
>				glVertex3d( ca, sa, 0.0 );
>			    }
>			glEnd();
>			glPopAttrib();
>
>			glPopMatrix();
>
>			float z = 1.0;
>			glBegin( GL_LINE_LOOP );
>				glVertex3f( 0.0f, 0.0f, z );
>				glVertex3f( 1.0f, 0.0f, z );
>				glVertex3f( 1.0f, 1.0f, z );
>				glVertex3f( 0.0f, 1.0f, z );
>			glEnd();
>			glutSwapBuffers();
>		}
>	}
>	exit(0);
>}
>
>
>//----------------------------------------------------------------------------
>void reshape( int w, int h ) {
>	const float halfwidth = 0.6;
>	glViewport( 0, 0, (GLsizei) w, (GLsizei) h );
>	glMatrixMode( GL_PROJECTION );
>	glLoadIdentity();
>	glOrtho( -halfwidth, halfwidth, -halfwidth, halfwidth, -10.0, 10.0 );
>	glMatrixMode( GL_MODELVIEW );
>	glLoadIdentity();
>}
>
>
>//----------------------------------------------------------------------------
>int main( int argc, char * argv[] ) {
>		glutInit( &argc, argv );
>		if( argc == 2 ) {
>		int id = 1;
>		loop = atoi( argv[id++] );
>		printf("draw %d pictures\n", loop );
>	} else {
>		loop = 1;
>	}
>	
>	glutInitDisplayMode( GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH );
>	glutInitWindowSize( 600, 400 );
>	glutInitWindowPosition( 0, 100 );
>	glutCreateWindow( argv[0] );
>	init();
>	glutDisplayFunc( display );
>	glutReshapeFunc( reshape );
>	glutMainLoop();
>	return 0;
>}

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Attachments on bug 55175: 67475 | 69790 | 69791 | 69792 | 69793

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