From 927e576284e3d8b10a3f5b46bc7680c579a6ff32 Mon Sep 17 00:00:00 2001 From: Chia-I Wu Date: Mon, 12 Apr 2010 11:08:31 +0800 Subject: [PATCH] st/egl: Request the front buffer as needed. The front buffer is added to support old X servers. Check the version of the server so that it can be added as needed. --- .../state_trackers/egl/x11/native_dri2.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/src/gallium/state_trackers/egl/x11/native_dri2.c b/src/gallium/state_trackers/egl/x11/native_dri2.c index dd44d60da99..20e1a0052ca 100644 --- a/src/gallium/state_trackers/egl/x11/native_dri2.c +++ b/src/gallium/state_trackers/egl/x11/native_dri2.c @@ -192,18 +192,19 @@ dri2_surface_get_buffers(struct native_surface *nsurf, uint buffer_mask) { struct dri2_surface *dri2surf = dri2_surface(nsurf); struct dri2_display *dri2dpy = dri2surf->dri2dpy; - unsigned int dri2atts[NUM_NATIVE_ATTACHMENTS]; + unsigned int dri2atts[NUM_NATIVE_ATTACHMENTS * 2]; int num_ins, num_outs, att; struct x11_drawable_buffer *xbufs; - /* XXX check if the server supports with format */ - boolean with_format = FALSE; - + uint bpp = util_format_get_blocksizebits(dri2surf->color_format); + boolean with_format = FALSE; /* never ask for depth/stencil */ /* 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) + if (dri2surf->dri2dpy->dri_minor < 1) { + with_format = FALSE; buffer_mask |= (1 << NATIVE_ATTACHMENT_FRONT_LEFT); + } /* prepare the attachments */ num_ins = 0; @@ -230,10 +231,13 @@ dri2_surface_get_buffers(struct native_surface *nsurf, uint buffer_mask) break; } - dri2atts[num_ins] = dri2att; - num_ins++; + dri2atts[num_ins++] = dri2att; + if (with_format) + dri2atts[num_ins++] = bpp; } } + if (with_format) + num_ins /= 2; xbufs = x11_drawable_get_buffers(dri2dpy->xscr, dri2surf->drawable, &dri2surf->width, &dri2surf->height, -- 2.30.2