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llvmpipe: add multisample resource copy region support.

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This allows direct copies of all samples between two resources.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4122>
This commit is contained in:
Dave Airlie 2020-03-10 13:36:36 +10:00 • committed by Marge Bot
parent 178df06821
commit c8740cbf01
1 changed files with 51 additions and 0 deletions
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51
src/gallium/drivers/llvmpipe/lp_surface.c
View file

@ -35,6 +35,51 @@
#include "lp_query.h"
#include "lp_rast.h"
static void
lp_resource_copy_ms(struct pipe_context *pipe,
struct pipe_resource *dst, unsigned dst_level,
unsigned dstx, unsigned dsty, unsigned dstz,
struct pipe_resource *src, unsigned src_level,
const struct pipe_box *src_box)
{
struct pipe_box dst_box = *src_box;
enum pipe_format src_format;
dst_box.x = dstx;
dst_box.y = dsty;
dst_box.z = dstz;
src_format = src->format;
for (unsigned i = 0; i < src->nr_samples; i++) {
struct pipe_transfer *src_trans, *dst_trans;
const uint8_t *src_map = llvmpipe_transfer_map_ms(pipe,
src, 0, PIPE_TRANSFER_READ, i,
src_box,
&src_trans);
if (!src_map)
return;
uint8_t *dst_map = llvmpipe_transfer_map_ms(pipe,
dst, 0, PIPE_TRANSFER_WRITE, i,
&dst_box,
&dst_trans);
if (!dst_map) {
pipe->transfer_unmap(pipe, src_trans);
return;
}
util_copy_box(dst_map,
src_format,
dst_trans->stride, dst_trans->layer_stride,
0, 0, 0,
src_box->width, src_box->height, src_box->depth,
src_map,
src_trans->stride, src_trans->layer_stride,
0, 0, 0);
pipe->transfer_unmap(pipe, dst_trans);
pipe->transfer_unmap(pipe, src_trans);
}
}
static void
lp_resource_copy(struct pipe_context *pipe,
struct pipe_resource *dst, unsigned dst_level,
@ -56,6 +101,12 @@ lp_resource_copy(struct pipe_context *pipe,
FALSE, /* do_not_block */
"blit src");
if (dst->nr_samples > 1 &&
dst->nr_samples == src->nr_samples) {
lp_resource_copy_ms(pipe, dst, dst_level, dstx, dsty, dstz,
src, src_level, src_box);
return;
}
util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz,
src, src_level, src_box);
}