static void
finalize_index_buffer(struct ilo_context *ilo)
{
struct ilo_state_vector *vec = &ilo->state_vector;
const bool need_upload = (vec->draw->indexed &&
(vec->ib.user_buffer || vec->ib.offset % vec->ib.index_size));
struct pipe_resource *current_hw_res = NULL;
if (!(vec->dirty & ILO_DIRTY_IB) && !need_upload)
return;
pipe_resource_reference(¤t_hw_res, vec->ib.hw_resource);
if (need_upload) {
const unsigned offset = vec->ib.index_size * vec->draw->start;
const unsigned size = vec->ib.index_size * vec->draw->count;
unsigned hw_offset;
if (vec->ib.user_buffer) {
u_upload_data(ilo->uploader, 0, size,
vec->ib.user_buffer + offset, &hw_offset, &vec->ib.hw_resource);
}
else {
u_upload_buffer(ilo->uploader, 0, vec->ib.offset + offset, size,
vec->ib.buffer, &hw_offset, &vec->ib.hw_resource);
}
/* the HW offset should be aligned */
assert(hw_offset % vec->ib.index_size == 0);
vec->ib.draw_start_offset = hw_offset / vec->ib.index_size;
/*
* INDEX[vec->draw->start] in the original buffer is INDEX[0] in the HW
* resource
*/
vec->ib.draw_start_offset -= vec->draw->start;
}
else {
pipe_resource_reference(&vec->ib.hw_resource, vec->ib.buffer);
/* note that index size may be zero when the draw is not indexed */
if (vec->draw->indexed)
vec->ib.draw_start_offset = vec->ib.offset / vec->ib.index_size;
else
vec->ib.draw_start_offset = 0;
}
/* treat the IB as clean if the HW states do not change */
if (vec->ib.hw_resource == current_hw_res &&
vec->ib.hw_index_size == vec->ib.index_size)
vec->dirty &= ~ILO_DIRTY_IB;
else
vec->ib.hw_index_size = vec->ib.index_size;
pipe_resource_reference(¤t_hw_res, NULL);
}
static int
svga_upload_user_buffers(struct svga_context *svga,
unsigned start,
unsigned count,
unsigned instance_count)
{
const struct pipe_vertex_element *ve = svga->curr.velems->velem;
unsigned i;
int ret;
svga_user_buffer_range(svga, start, count, instance_count);
for (i=0; i < svga->curr.velems->count; i++) {
struct pipe_vertex_buffer *vb =
&svga->curr.vb[ve[i].vertex_buffer_index];
if (vb->buffer && svga_buffer_is_user_buffer(vb->buffer)) {
struct svga_buffer *buffer = svga_buffer(vb->buffer);
/*
* Check if already uploaded. Otherwise go ahead and upload.
*/
if (buffer->uploaded.buffer)
continue;
ret = u_upload_buffer( svga->upload_vb,
0,
buffer->uploaded.start,
buffer->uploaded.end - buffer->uploaded.start,
&buffer->b.b,
&buffer->uploaded.offset,
&buffer->uploaded.buffer);
if (ret)
return ret;
if (0)
debug_printf("%s: %d: orig buf %p upl buf %p ofs %d sofs %d"
" sz %d\n",
__FUNCTION__,
i,
buffer,
buffer->uploaded.buffer,
buffer->uploaded.offset,
buffer->uploaded.start,
buffer->uploaded.end - buffer->uploaded.start);
vb->buffer_offset = buffer->uploaded.offset;
}
}
return PIPE_OK;
}
static int
upload_user_buffers( struct svga_context *svga )
{
enum pipe_error ret = PIPE_OK;
int i;
int nr;
if (0)
debug_printf("%s: %d\n", __FUNCTION__, svga->curr.num_vertex_buffers);
nr = svga->curr.num_vertex_buffers;
for (i = 0; i < nr; i++)
{
if (svga_buffer_is_user_buffer(svga->curr.vb[i].buffer))
{
struct svga_buffer *buffer = svga_buffer(svga->curr.vb[i].buffer);
if (!buffer->uploaded.buffer) {
ret = u_upload_buffer( svga->upload_vb,
0,
buffer->base.size,
&buffer->base,
&buffer->uploaded.offset,
&buffer->uploaded.buffer );
if (ret)
return ret;
if (0)
debug_printf("%s: %d: orig buf %p upl buf %p ofs %d sz %d\n",
__FUNCTION__,
i,
buffer,
buffer->uploaded.buffer,
buffer->uploaded.offset,
buffer->base.size);
}
pipe_buffer_reference( &svga->curr.vb[i].buffer, buffer->uploaded.buffer );
svga->curr.vb[i].buffer_offset = buffer->uploaded.offset;
}
}
if (0)
debug_printf("%s: DONE\n", __FUNCTION__);
return ret;
}
enum pipe_error
svga_hwtnl_simple_draw_range_elements( struct svga_hwtnl *hwtnl,
struct pipe_resource *index_buffer,
unsigned index_size,
int index_bias,
unsigned min_index,
unsigned max_index,
unsigned prim,
unsigned start,
unsigned count )
{
struct pipe_resource *upload_buffer = NULL;
SVGA3dPrimitiveRange range;
unsigned hw_prim;
unsigned hw_count;
unsigned index_offset = start * index_size;
enum pipe_error ret = PIPE_OK;
hw_prim = svga_translate_prim(prim, count, &hw_count);
if (hw_count == 0)
goto done;
if (index_buffer &&
svga_buffer_is_user_buffer(index_buffer))
{
assert( index_buffer->width0 >= index_offset + count * index_size );
ret = u_upload_buffer( hwtnl->upload_ib,
0,
index_offset,
count * index_size,
index_buffer,
&index_offset,
&upload_buffer);
if (ret != PIPE_OK)
goto done;
/* Don't need to worry about refcounting index_buffer as this is
* just a stack variable without a counted reference of its own.
* The caller holds the reference.
*/
index_buffer = upload_buffer;
}
range.primType = hw_prim;
range.primitiveCount = hw_count;
range.indexArray.offset = index_offset;
range.indexArray.stride = index_size;
range.indexWidth = index_size;
range.indexBias = index_bias;
ret = svga_hwtnl_prim( hwtnl, &range, min_index, max_index, index_buffer );
if (ret != PIPE_OK)
goto done;
done:
if (upload_buffer)
pipe_resource_reference( &upload_buffer, NULL );
return ret;
}
