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virgl: fix handling draw info 

index_bias is undefined if index_size == 0.
index bounds are undefined if index_bounds_valid == false.

Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7679>
This commit is contained in:
Marek Olšák 2020-11-21 22:08:50 -05:00
parent a36d1b1c6e
commit 8ebabfe2b3
1 changed files with 3 additions and 3 deletions
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6
src/gallium/drivers/virgl/virgl_encode.c
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@ -723,12 +723,12 @@ int virgl_encoder_draw_vbo(struct virgl_context *ctx,
virgl_encoder_write_dword(ctx->cbuf, info->mode);
virgl_encoder_write_dword(ctx->cbuf, !!info->index_size);
virgl_encoder_write_dword(ctx->cbuf, info->instance_count);
virgl_encoder_write_dword(ctx->cbuf, info->index_bias);
virgl_encoder_write_dword(ctx->cbuf, info->index_size ? info->index_bias : 0);
virgl_encoder_write_dword(ctx->cbuf, info->start_instance);
virgl_encoder_write_dword(ctx->cbuf, info->primitive_restart);
virgl_encoder_write_dword(ctx->cbuf, info->restart_index);
virgl_encoder_write_dword(ctx->cbuf, info->min_index);
virgl_encoder_write_dword(ctx->cbuf, info->max_index);
virgl_encoder_write_dword(ctx->cbuf, info->index_bounds_valid ? info->min_index : 0);
virgl_encoder_write_dword(ctx->cbuf, info->index_bounds_valid ? info->max_index : ~0);
if (indirect && indirect->count_from_stream_output)
virgl_encoder_write_dword(ctx->cbuf, indirect->count_from_stream_output->buffer_size);
else