static boolean
dri2_surface_validate(struct native_surface *nsurf, uint attachment_mask,
unsigned int *seq_num, struct pipe_resource **textures,
int *width, int *height)
{
struct dri2_surface *dri2surf = dri2_surface(nsurf);
if (dri2surf->server_stamp != dri2surf->client_stamp ||
(dri2surf->valid_mask & attachment_mask) != attachment_mask) {
if (!dri2_surface_update_buffers(&dri2surf->base, attachment_mask))
return FALSE;
}
if (seq_num)
*seq_num = dri2surf->client_stamp;
if (textures) {
int att;
for (att = 0; att < NUM_NATIVE_ATTACHMENTS; att++) {
if (native_attachment_mask_test(attachment_mask, att)) {
struct pipe_resource *ptex = dri2surf->textures[att];
textures[att] = NULL;
pipe_resource_reference(&textures[att], ptex);
}
}
}
if (width)
*width = dri2surf->width;
if (height)
*height = dri2surf->height;
return TRUE;
}
static boolean
android_surface_validate(struct native_surface *nsurf, uint attachment_mask,
unsigned int *seq_num, struct pipe_resource **textures,
int *width, int *height)
{
struct android_surface *asurf = android_surface(nsurf);
struct winsys_handle handle;
if (!asurf->buf) {
if (!android_surface_dequeue_buffer(&asurf->base))
return FALSE;
/* color_res must be compatible with buf_res */
if (asurf->color_res &&
(asurf->color_res->format != asurf->buf_res->format ||
asurf->color_res->width0 != asurf->buf_res->width0 ||
asurf->color_res->height0 != asurf->buf_res->height0))
pipe_resource_reference(&asurf->color_res, NULL);
}
if (textures) {
/* we have access to only the back buffer */
const enum native_attachment att = NATIVE_ATTACHMENT_BACK_LEFT;
if (native_attachment_mask_test(attachment_mask, att)) {
textures[att] = NULL;
pipe_resource_reference(&textures[att],
(asurf->color_res) ? asurf->color_res : asurf->buf_res);
}
}
if (seq_num)
*seq_num = asurf->stamp;
if (width)
*width = asurf->buf->width;
if (height)
*height = asurf->buf->height;
return TRUE;
}
/**
* Get the buffers from the server.
*/
static void
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 * 2];
int num_ins, num_outs, att;
struct x11_drawable_buffer *xbufs;
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 (dri2surf->dri2dpy->dri_minor < 1) {
with_format = FALSE;
buffer_mask |= (1 << NATIVE_ATTACHMENT_FRONT_LEFT);
}
/* prepare the attachments */
num_ins = 0;
for (att = 0; att < NUM_NATIVE_ATTACHMENTS; att++) {
if (native_attachment_mask_test(buffer_mask, att)) {
unsigned int dri2att;
switch (att) {
case NATIVE_ATTACHMENT_FRONT_LEFT:
dri2att = DRI2BufferFrontLeft;
break;
case NATIVE_ATTACHMENT_BACK_LEFT:
dri2att = DRI2BufferBackLeft;
break;
case NATIVE_ATTACHMENT_FRONT_RIGHT:
dri2att = DRI2BufferFrontRight;
break;
case NATIVE_ATTACHMENT_BACK_RIGHT:
dri2att = DRI2BufferBackRight;
break;
default:
assert(0);
dri2att = 0;
break;
}
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,
dri2atts, with_format, num_ins, &num_outs);
/* we should be able to do better... */
if (xbufs && dri2surf->last_num_xbufs == num_outs &&
memcmp(dri2surf->last_xbufs, xbufs, sizeof(*xbufs) * num_outs) == 0) {
FREE(xbufs);
dri2surf->client_stamp = dri2surf->server_stamp;
return;
}
dri2_surface_process_drawable_buffers(&dri2surf->base, xbufs, num_outs);
dri2surf->server_stamp++;
dri2surf->client_stamp = dri2surf->server_stamp;
FREE(dri2surf->last_xbufs);
dri2surf->last_xbufs = xbufs;
dri2surf->last_num_xbufs = num_outs;
}
