1 /* 2 * Copyright 2010 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * on the rights to use, copy, modify, merge, publish, distribute, sub 8 * license, and/or sell copies of the Software, and to permit persons to whom 9 * the Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 21 * USE OR OTHER DEALINGS IN THE SOFTWARE. 22 * 23 * Authors: Dave Airlie <airlied (at) redhat.com> 24 */ 25 26 #include "r600_pipe.h" 27 #include "util/u_index_modify.h" 28 #include "util/u_upload_mgr.h" 29 30 31 void r600_translate_index_buffer(struct r600_context *r600, 32 struct pipe_index_buffer *ib, 33 unsigned count) 34 { 35 struct pipe_resource *out_buffer = NULL; 36 unsigned out_offset; 37 void *ptr; 38 39 switch (ib->index_size) { 40 case 1: 41 u_upload_alloc(r600->uploader, 0, count * 2, 42 &out_offset, &out_buffer, &ptr); 43 44 util_shorten_ubyte_elts_to_userptr( 45 &r600->context, ib, 0, ib->offset, count, ptr); 46 47 pipe_resource_reference(&ib->buffer, NULL); 48 ib->buffer = out_buffer; 49 ib->offset = out_offset; 50 ib->index_size = 2; 51 break; 52 } 53 } 54
