diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp index b0ee289..ac200d2 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp +++ b/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp @@ -780,7 +780,13 @@ brw_compile_gs(const struct brw_compiler *compiler, void *log_data, if (compiler->devinfo->gen >= 8) output_size_bytes += 32; - assert(output_size_bytes >= 1); + /* Shaders can technically set max_vertices = 0, at which point we + * may have a URB size of 0 bytes. Nothing good can come from that, + * so enforce a minimum size. + */ + if (output_size_bytes == 0) + output_size_bytes = 1; + unsigned max_output_size_bytes = GEN7_MAX_GS_URB_ENTRY_SIZE_BYTES; if (compiler->devinfo->gen == 6) max_output_size_bytes = GEN6_MAX_GS_URB_ENTRY_SIZE_BYTES; |