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lavapipe: stop allocating 0 size const buffer

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19163>
This commit is contained in:
SoroushIMG 2022-10-19 13:19:20 +01:00
parent d766093199
commit 001c8fdfbf
1 changed files with 10 additions and 8 deletions
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18
src/gallium/frontends/lavapipe/lvp_execute.c
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@ -257,15 +257,17 @@ fill_ubo0(struct rendering_state *state, uint8_t *mem, enum pipe_shader_type pst
static void
update_pcbuf(struct rendering_state *state, enum pipe_shader_type pstage)
{
uint8_t *mem;
struct pipe_constant_buffer cbuf;
unsigned size = calc_ubo0_size(state, pstage);
cbuf.buffer_size = size;
cbuf.buffer = NULL;
cbuf.user_buffer = NULL;
u_upload_alloc(state->uploader, 0, size, 64, &cbuf.buffer_offset, &cbuf.buffer, (void**)&mem);
fill_ubo0(state, mem, pstage);
state->pctx->set_constant_buffer(state->pctx, pstage, 0, true, &cbuf);
if (size) {
uint8_t *mem;
struct pipe_constant_buffer cbuf;
cbuf.buffer_size = size;
cbuf.buffer = NULL;
cbuf.user_buffer = NULL;
u_upload_alloc(state->uploader, 0, size, 64, &cbuf.buffer_offset, &cbuf.buffer, (void**)&mem);
fill_ubo0(state, mem, pstage);
state->pctx->set_constant_buffer(state->pctx, pstage, 0, true, &cbuf);
}
state->pcbuf_dirty[pstage] = false;
}