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st/egl: Fix DRI2 on old X servers

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This commit is contained in:
Jakob Bornecrantz 2010-04-12 00:28:49 +02:00
parent cefe2a1dc2
commit d93c34cf70
1 changed files with 10 additions and 1 deletions
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11
src/gallium/state_trackers/egl/x11/native_dri2.c
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@ -195,6 +195,15 @@ dri2_surface_get_buffers(struct native_surface *nsurf, uint buffer_mask)
unsigned int dri2atts[NUM_NATIVE_ATTACHMENTS];
int num_ins, num_outs, att;
struct x11_drawable_buffer *xbufs;
/* XXX check if the server supports with format */
boolean with_format = FALSE;
/* We must get the front on servers which doesn't support with format
* due to a silly bug in core dri2. You can't copy to/from a buffer
* that you haven't requested and you recive BadValue errors */
if (!with_format)
buffer_mask |= (1 << NATIVE_ATTACHMENT_FRONT_LEFT);
/* prepare the attachments */
num_ins = 0;
@ -228,7 +237,7 @@ dri2_surface_get_buffers(struct native_surface *nsurf, uint buffer_mask)
xbufs = x11_drawable_get_buffers(dri2dpy->xscr, dri2surf->drawable,
&dri2surf->width, &dri2surf->height,
dri2atts, FALSE, num_ins, &num_outs);
dri2atts, with_format, num_ins, &num_outs);
/* we should be able to do better... */
if (xbufs && dri2surf->last_num_xbufs == num_outs &&