PUBLIC
Status XvMCClearSubpicture(Display *dpy, XvMCSubpicture *subpicture, short x, short y,
unsigned short width, unsigned short height, unsigned int color)
{
XvMCSubpicturePrivate *subpicture_priv;
XvMCContextPrivate *context_priv;
struct pipe_context *pipe;
struct pipe_sampler_view *dst;
struct pipe_box dst_box = {x, y, 0, width, height, 1};
struct pipe_transfer *transfer;
union util_color uc;
void *map;
assert(dpy);
if (!subpicture)
return XvMCBadSubpicture;
/* Convert color to float */
util_format_read_4f(PIPE_FORMAT_B8G8R8A8_UNORM,
uc.f, 1, &color, 4,
0, 0, 1, 1);
subpicture_priv = subpicture->privData;
context_priv = subpicture_priv->context->privData;
pipe = context_priv->pipe;
dst = subpicture_priv->sampler;
/* TODO: Assert clear rect is within bounds? Or clip? */
transfer = pipe->get_transfer(pipe, dst->texture, 0, PIPE_TRANSFER_WRITE, &dst_box);
if (!transfer)
return XvMCBadSubpicture;
map = pipe->transfer_map(pipe, transfer);
if (map) {
util_fill_rect(map, dst->texture->format, transfer->stride, 0, 0,
dst_box.width, dst_box.height, &uc);
pipe->transfer_unmap(pipe, transfer);
}
pipe->transfer_destroy(pipe, transfer);
return Success;
}
static void
nv30_emit_vtxattr(struct nv30_context *nv30, struct pipe_vertex_buffer *vb,
struct pipe_vertex_element *ve, unsigned attr)
{
const unsigned nc = util_format_get_nr_components(ve->src_format);
struct nouveau_pushbuf *push = nv30->base.pushbuf;
struct nv04_resource *res = nv04_resource(vb->buffer);
const void *data;
float v[4];
data = nouveau_resource_map_offset(&nv30->base, res, vb->buffer_offset +
ve->src_offset, NOUVEAU_BO_RD);
util_format_read_4f(ve->src_format, v, 0, data, 0, 0, 0, 1, 1);
switch (nc) {
case 4:
BEGIN_NV04(push, NV30_3D(VTX_ATTR_4F(attr)), 4);
PUSH_DATAf(push, v[0]);
PUSH_DATAf(push, v[1]);
PUSH_DATAf(push, v[2]);
PUSH_DATAf(push, v[3]);
break;
case 3:
BEGIN_NV04(push, NV30_3D(VTX_ATTR_3F(attr)), 3);
PUSH_DATAf(push, v[0]);
PUSH_DATAf(push, v[1]);
PUSH_DATAf(push, v[2]);
break;
case 2:
BEGIN_NV04(push, NV30_3D(VTX_ATTR_2F(attr)), 2);
PUSH_DATAf(push, v[0]);
PUSH_DATAf(push, v[1]);
break;
case 1:
BEGIN_NV04(push, NV30_3D(VTX_ATTR_1F(attr)), 1);
PUSH_DATAf(push, v[0]);
break;
default:
assert(0);
break;
}
}
