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vc4: don't use index_bias if indexed 

index_bias is undefined if index_size == 0.

Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7679>
This commit is contained in:
Marek Olšák 2020-11-22 01:53:18 -05:00
parent 40c3a743ef
commit dca8a71ff0
1 changed files with 5 additions and 3 deletions
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8
src/gallium/drivers/vc4/vc4_draw.c
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@ -182,6 +182,7 @@ vc4_emit_gl_shader_state(struct vc4_context *vc4,
};
uint32_t max_index = 0xffff;
unsigned index_bias = info->index_size ? info->index_bias : 0;
for (int i = 0; i < vtx->num_elements; i++) {
struct pipe_vertex_element *elem = &vtx->pipe[i];
struct pipe_vertex_buffer *vb =
@ -190,7 +191,7 @@ vc4_emit_gl_shader_state(struct vc4_context *vc4,
/* not vc4->dirty tracked: vc4->last_index_bias */
uint32_t offset = (vb->buffer_offset +
elem->src_offset +
vb->stride * (info->index_bias +
vb->stride * (index_bias +
extra_index_bias));
uint32_t vb_size = rsc->bo->size - offset;
uint32_t elem_size =
@ -247,7 +248,7 @@ vc4_emit_gl_shader_state(struct vc4_context *vc4,
&vc4->constbuf[PIPE_SHADER_VERTEX],
&vc4->verttex);
vc4->last_index_bias = info->index_bias + extra_index_bias;
vc4->last_index_bias = index_bias + extra_index_bias;
vc4->max_index = max_index;
job->shader_rec_count++;
}
@ -359,6 +360,7 @@ vc4_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info,
bool needs_drawarrays_shader_state = false;
unsigned index_bias = info->index_size ? info->index_bias : 0;
if ((vc4->dirty & (VC4_DIRTY_VTXBUF |
VC4_DIRTY_VTXSTATE |
VC4_DIRTY_PRIM_MODE |
@ -369,7 +371,7 @@ vc4_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info,
vc4->prog.cs->uniform_dirty_bits |
vc4->prog.vs->uniform_dirty_bits |
vc4->prog.fs->uniform_dirty_bits)) ||
vc4->last_index_bias != info->index_bias) {
vc4->last_index_bias != index_bias) {
if (info->index_size)
vc4_emit_gl_shader_state(vc4, info, 0);
else