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util/prim_restart: pre-trim degenerate primitives during draw rewrite

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these will be eliminated by drivers anyway

Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10966>
This commit is contained in:
Mike Blumenkrantz 2021-05-21 05:57:17 -04:00 • committed by Marge Bot
parent 5d54b64e6d
commit 69d47fdd7a
1 changed files with 7 additions and 2 deletions
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9
src/gallium/auxiliary/util/u_prim_restart.c
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@ -28,6 +28,7 @@
#include "u_inlines.h"
#include "util/u_memory.h"
#include "u_prim_restart.h"
#include "u_prim.h"
typedef struct {
uint32_t count;
@ -184,8 +185,12 @@ struct range_info {
* \return true for success, false if out of memory
*/
static boolean
add_range(struct range_info *info, unsigned start, unsigned count)
add_range(enum pipe_prim_type mode, struct range_info *info, unsigned start, unsigned count)
{
/* degenerate primitive: ignore */
if (!u_trim_pipe_prim(mode, (unsigned*)&count))
return TRUE;
if (info->max == 0) {
info->max = 10;
info->ranges = MALLOC(info->max * sizeof(struct range));
@ -285,7 +290,7 @@ util_draw_vbo_without_prim_restart(struct pipe_context *context,
((const TYPE *) src_map)[i] == info->restart_index) { \
/* cut / restart */ \
if (count > 0) { \
if (!add_range(&ranges, info_start + start, count)) { \
if (!add_range(info->mode, &ranges, info_start + start, count)) { \
if (src_transfer) \
pipe_buffer_unmap(context, src_transfer); \
return PIPE_ERROR_OUT_OF_MEMORY; \