radeonsi: Fix vertex buffer resource for stride 0.

diff --git a/src/gallium/drivers/radeonsi/r600_state_common.c b/src/gallium/drivers/radeonsi/r600_state_common.c
index d283e41e6813b0396a8365b6ce8f1d3ba7d64117..ebed5b36730d8fd0c1ab36af8fc8712e322b6814 100644 (file)
--- a/src/gallium/drivers/radeonsi/r600_state_common.c
+++ b/src/gallium/drivers/radeonsi/r600_state_common.c
@@ -625,7 +625,11 @@ static void r600_vertex_buffer_update(struct r600_context *rctx)
                ptr[0] = va & 0xFFFFFFFF;
                ptr[1] = (S_008F04_BASE_ADDRESS_HI(va >> 32) |
                          S_008F04_STRIDE(vertex_buffer->stride));
-               ptr[2] = (vertex_buffer->buffer->width0 - offset) / vertex_buffer->stride;
+               if (vertex_buffer->stride > 0)
+                       ptr[2] = ((vertex_buffer->buffer->width0 - offset) /
+                                 vertex_buffer->stride);
+               else
+                       ptr[2] = vertex_buffer->buffer->width0 - offset;
                /* XXX: Hardcoding RGBA */
                ptr[3] = (S_008F0C_DST_SEL_X(V_008F0C_SQ_SEL_X) |
                          S_008F0C_DST_SEL_Y(V_008F0C_SQ_SEL_Y) |