There seems to be some troubles with the fxMesa->render_index in the 3.2_dev
branch:
Are the following lines correct?
Line 107 of fxpipeline.c:
if ((fxMesa->render_index & ~1) ||
((ctx->Texture.ReallyEnabled & 0xf) && VB->TexCoordPtr[0]->size>2) ||
((ctx->Texture.ReallyEnabled & 0xf0) && VB->TexCoordPtr[1]->size>2))
gl_render_vb( VB );
else
fxDDDoRenderVB( VB );
Shouldn't it be
if ((fxMesa->render_index != 0) ||
etc.
?
Line 684 of fxdd.c:
FX_CONTEXT(ctx)->render_index = 1; /* force an update */
Is it correct?
(FX_OFFSET is defined as 1.)
Miklos.
ps. Follows a program which doesn't renders anything with the current
3.2_dev branch...
#include <GL/glut.h>
#include <stdio.h>
#include <stdlib.h>
#ifdef GL_VERSION_1_1
GLuint list;
GLint spinx = 0;
GLint spiny = 0;
GLfloat tdist = 0.0;
GLfloat polyfactor = 1.0;
GLfloat polyunits = 1.0;
/* display() draws two spheres, one with a gray, diffuse material,
* the other sphere with a magenta material with a specular highlight.
*/
void display (void)
{
GLfloat gray[] = { 0.8, 0.8, 0.8, 1.0 };
GLfloat black[] = { 0.0, 0.0, 0.0, 1.0 };
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix ();
glTranslatef (0.0, 0.0, tdist);
glRotatef ((GLfloat) spinx, 1.0, 0.0, 0.0);
glRotatef ((GLfloat) spiny, 0.0, 1.0, 0.0);
glColor3f(1.0,0.0,0.0);
glEnable(GL_POLYGON_OFFSET_FILL);
glPolygonOffset(polyfactor, polyunits);
glBegin(GL_TRIANGLES);
glVertex3f(1.0,1.0,0.0);
glVertex3f(1.0,0.0,0.0);
glVertex3f(0.0,1.0,1.0);
glEnd();
glFlush();
glDisable(GL_POLYGON_OFFSET_FILL);
glPopMatrix ();
glFlush ();
}
/* specify initial properties
* create display list with sphere
* initialize lighting and depth buffer
*/
void gfxinit (void)
{
GLfloat light_ambient[] = { 0.0, 0.0, 0.0, 1.0 };
GLfloat light_diffuse[] = { 1.0, 1.0, 1.0, 1.0 };
GLfloat light_specular[] = { 1.0, 1.0, 1.0, 1.0 };
GLfloat light_position[] = { 1.0, 1.0, 1.0, 0.0 };
GLfloat global_ambient[] = { 0.2, 0.2, 0.2, 1.0 };
glClearColor (0.0, 0.0, 0.0, 1.0);
list = glGenLists(1);
glNewList(list,GL_COMPILE);
glBegin(GL_TRIANGLES);
glVertex3f(1.0,1.0,0.0);
glVertex3f(1.0,0.0,0.0);
glVertex3f(0.0,1.0,1.0);
glEnd();
glEndList();
/*
list = glGenLists(1);
glNewList (list, GL_COMPILE);
glutSolidSphere(1.0, 20, 12);
glEndList ();
*/
glEnable(GL_DEPTH_TEST);
glLightfv (GL_LIGHT0, GL_AMBIENT, light_ambient);
glLightfv (GL_LIGHT0, GL_DIFFUSE, light_diffuse);
glLightfv (GL_LIGHT0, GL_SPECULAR, light_specular);
glLightfv (GL_LIGHT0, GL_POSITION, light_position);
glLightModelfv (GL_LIGHT_MODEL_AMBIENT, global_ambient);
}
/* call when window is resized */
void reshape(int width, int height)
{
glViewport (0, 0, width, height);
glMatrixMode (GL_PROJECTION);
glLoadIdentity ();
gluPerspective(45.0, (GLdouble)width/(GLdouble)height,
1.0, 10.0);
glMatrixMode (GL_MODELVIEW);
glLoadIdentity ();
gluLookAt (0.0, 0.0, 5.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
}
/* call when mouse button is pressed */
/* ARGSUSED2 */
void mouse(int button, int state, int x, int y) {
switch (button) {
case GLUT_LEFT_BUTTON:
switch (state) {
case GLUT_DOWN:
spinx = (spinx + 5) % 360;
glutPostRedisplay();
break;
default:
break;
}
break;
case GLUT_MIDDLE_BUTTON:
switch (state) {
case GLUT_DOWN:
spiny = (spiny + 5) % 360;
glutPostRedisplay();
break;
default:
break;
}
break;
case GLUT_RIGHT_BUTTON:
switch (state) {
case GLUT_UP:
exit(0);
break;
default:
break;
}
break;
default:
break;
}
}
/* ARGSUSED1 */
void keyboard (unsigned char key, int x, int y)
{
switch (key) {
case 't':
if (tdist < 4.0) {
tdist = (tdist + 0.5);
glutPostRedisplay();
}
break;
case 'T':
if (tdist > -5.0) {
tdist = (tdist - 0.5);
glutPostRedisplay();
}
break;
case 'F':
polyfactor = polyfactor + 0.1;
printf ("polyfactor is %f\n", polyfactor);
glutPostRedisplay();
break;
case 'f':
polyfactor = polyfactor - 0.1;
printf ("polyfactor is %f\n", polyfactor);
glutPostRedisplay();
break;
case 'U':
polyunits = polyunits + 1.0;
printf ("polyunits is %f\n", polyunits);
glutPostRedisplay();
break;
case 'u':
polyunits = polyunits - 1.0;
printf ("polyunits is %f\n", polyunits);
glutPostRedisplay();
break;
default:
break;
}
}
static void
key(unsigned char k, int x, int y)
{
switch (k) {
case 27: /* Escape */
exit(0);
break;
default:
return;
}
glutPostRedisplay();
}
/* Main Loop
* Open window with initial window size, title bar,
* RGBA display mode, and handle input events.
*/
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH);
glutCreateWindow(argv[0]);
glutReshapeFunc(reshape);
glutDisplayFunc(display);
glutMouseFunc(mouse);
glutKeyboardFunc(keyboard);
gfxinit();
glutKeyboardFunc(key);
glutMainLoop();
return 0;
}
#else
int main(int argc, char** argv)
{
fprintf (stderr, "This program demonstrates a feature which is not in
OpenGL Version 1.0.\n");
fprintf (stderr, "If your implementation of OpenGL Version 1.0 has the
right extensions,\n");
fprintf (stderr, "you may be able to modify this program to make it
run.\n");
return 0;
}
#endif
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