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vbo: fix transitions from glVertexN to glVertexM where M < N

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Fixes: 1f6e53e2 "vbo: don't store glVertex values temporarily into exec"

Reviewed-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3591>
This commit is contained in:
Marek Olšák 2020-02-27 16:04:00 -05:00 • committed by Marge Bot
parent ec7d48afc4
commit 218dfd8c1a
1 changed files with 15 additions and 1 deletions
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16
src/mesa/vbo/vbo_exec_api.c
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@ -493,8 +493,10 @@ do { \
ctx->Driver.NeedFlush |= FLUSH_UPDATE_CURRENT; \
} else { \
/* This is a glVertex call */ \
int size = exec->vtx.attr[0].size; \
\
/* Check if attribute size or type is changing. */ \
if (unlikely(exec->vtx.attr[0].size < N * sz || \
if (unlikely(size < N * sz || \
exec->vtx.attr[0].type != T)) { \
vbo_exec_wrap_upgrade_vertex(exec, 0, N * sz, T); \
} \
@ -514,6 +516,12 @@ do { \
if (N > 1) *dst++ = V1; \
if (N > 2) *dst++ = V2; \
if (N > 3) *dst++ = V3; \
\
if (unlikely(N < size)) { \
if (N < 2 && size >= 2) *dst++ = V1; \
if (N < 3 && size >= 3) *dst++ = V2; \
if (N < 4 && size >= 4) *dst++ = V3; \
} \
} else { \
/* 64 bits: dst can be unaligned, so copy each 4-byte word */ \
/* separately */ \
@ -521,6 +529,12 @@ do { \
if (N > 1) SET_64BIT(dst, V1); \
if (N > 2) SET_64BIT(dst, V2); \
if (N > 3) SET_64BIT(dst, V3); \
\
if (unlikely(N * 2 < size)) { \
if (N < 2 && size >= 4) SET_64BIT(dst, V1); \
if (N < 3 && size >= 6) SET_64BIT(dst, V2); \
if (N < 4 && size >= 8) SET_64BIT(dst, V3); \
} \
} \
\
/* dst now points at the beginning of the next vertex */ \