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fixed an RGB vs CI bug in overlay visual selection

This commit is contained in:
Brian Paul 1999-10-14 18:47:37 +00:00
parent 3df50407a3
commit 42f252fc06
1 changed files with 27 additions and 3 deletions
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30
src/mesa/drivers/x11/fakeglx.c
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@ -1,4 +1,4 @@
/* $Id: fakeglx.c,v 1.9 1999/10/13 18:49:47 brianp Exp $ */
/* $Id: fakeglx.c,v 1.10 1999/10/14 18:47:37 brianp Exp $ */
/*
* Mesa 3-D graphics library
@ -718,6 +718,7 @@ static XVisualInfo *choose_x_visual( Display *dpy, int screen,
* Return: pointer to an XVisualInfo or NULL.
*/
static XVisualInfo *choose_x_overlay_visual( Display *dpy, int scr,
GLboolean rgbFlag,
int level, int trans_type,
int trans_value,
int min_depth,
@ -809,6 +810,16 @@ static XVisualInfo *choose_x_overlay_visual( Display *dpy, int scr,
continue;
}
/* if RGB was requested, make sure we have True/DirectColor */
if (rgbFlag && vislist->CLASS != TrueColor
&& vislist->CLASS != DirectColor)
continue;
/* if CI was requested, make sure we have a color indexed visual */
if (!rgbFlag
&& (vislist->CLASS == TrueColor || vislist->CLASS == DirectColor))
continue;
if (deepvis==NULL || vislist->depth > deepest) {
/* YES! found a satisfactory visual */
if (deepvis) {
@ -979,8 +990,21 @@ XVisualInfo *Fake_glXChooseVisual( Display *dpy, int screen, int *list )
}
else {
/* over/underlay planes */
vis = choose_x_overlay_visual( dpy, screen, level, trans_type,
trans_value, min_ci, visual_type );
if (rgb_flag) {
/* rgba overlay */
int min_rgb = min_red + min_green + min_blue;
if (min_rgb>1 && min_rgb<8) {
/* a special case to be sure we can get a monochrome visual */
min_rgb = 1;
}
vis = choose_x_overlay_visual( dpy, screen, rgb_flag, level,
trans_type, trans_value, min_rgb, visual_type );
}
else {
/* color index overlay */
vis = choose_x_overlay_visual( dpy, screen, rgb_flag, level,
trans_type, trans_value, min_ci, visual_type );
}
}
if (vis) {