r600g: add index_bias to index buffer bounds

This fixes ARB_draw_elements_base_vertex with max_index != ~0.

NOTE: This is a candidate for the 7.11 branch.

diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c
index bec31ff..3a62981 100644 (file)
--- a/src/gallium/drivers/r600/r600_state_common.c
+++ b/src/gallium/drivers/r600/r600_state_common.c
@@ -572,6 +572,11 @@ void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info)
        r600_vertex_buffer_update(rctx);
 
        draw.info = *info;
+       if (draw.info.max_index != ~0) {
+               draw.info.min_index += info->index_bias;
+               draw.info.max_index += info->index_bias;
+       }
+
        draw.ctx = ctx;
        draw.index_buffer = NULL;
        if (info->indexed && rctx->index_buffer.buffer) {