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radeonsi/uvd: Optimize bitstream buffer resizing

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Only resize the buffer once and avoid copy if the buffer is empty.

Reviewed-by: Ruijing Dong <ruijing.dong@amd.com>
Acked-by: Leo Liu <leo.liu@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32829>
This commit is contained in:
David Rosca 2024-12-31 08:48:30 +01:00 • committed by Marge Bot
parent f51de3f064
commit 4cf46ac9d0
1 changed files with 26 additions and 16 deletions
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42
src/gallium/drivers/radeonsi/radeon_uvd.c
View file

@ -1046,29 +1046,39 @@ static void ruvd_decode_bitstream(struct pipe_video_codec *decoder,
if (!dec->bs_ptr)
return;
for (i = 0; i < num_buffers; ++i) {
struct rvid_buffer *buf = &dec->bs_buffers[dec->cur_buffer];
unsigned new_size = dec->bs_size + sizes[i];
unsigned long total_bs_size = dec->bs_size;
for (i = 0; i < num_buffers; ++i)
total_bs_size += sizes[i];
if (new_size > buf->res->buf->size) {
dec->ws->buffer_unmap(dec->ws, buf->res->buf);
dec->bs_ptr = NULL;
struct rvid_buffer *buf = &dec->bs_buffers[dec->cur_buffer];
new_size = align(new_size, 128);
if (total_bs_size > buf->res->buf->size) {
dec->ws->buffer_unmap(dec->ws, buf->res->buf);
dec->bs_ptr = NULL;
if (!si_vid_resize_buffer(dec->base.context, &dec->cs, buf, new_size, NULL)) {
RVID_ERR("Can't resize bitstream buffer!");
total_bs_size = align(total_bs_size, 128);
if (!dec->bs_size) {
struct rvid_buffer old_buf = *buf;
if (!si_vid_create_buffer(dec->screen, buf, total_bs_size, buf->usage)) {
RVID_ERR("Can't create bitstream buffer!");
return;
}
dec->bs_ptr = dec->ws->buffer_map(dec->ws, buf->res->buf, &dec->cs,
PIPE_MAP_WRITE | RADEON_MAP_TEMPORARY);
if (!dec->bs_ptr)
return;
dec->bs_ptr += dec->bs_size;
si_vid_destroy_buffer(&old_buf);
} else if (!si_vid_resize_buffer(dec->base.context, &dec->cs, buf, total_bs_size, NULL)) {
RVID_ERR("Can't resize bitstream buffer!");
return;
}
dec->bs_ptr = dec->ws->buffer_map(dec->ws, buf->res->buf, &dec->cs,
PIPE_MAP_WRITE | RADEON_MAP_TEMPORARY);
if (!dec->bs_ptr)
return;
dec->bs_ptr += dec->bs_size;
}
for (i = 0; i < num_buffers; ++i) {
memcpy(dec->bs_ptr, buffers[i], sizes[i]);
dec->bs_size += sizes[i];
dec->bs_ptr += sizes[i];