1 /********************************************************** 2 * Copyright 2014 VMware, Inc. All rights reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person 5 * obtaining a copy of this software and associated documentation 6 * files (the "Software"), to deal in the Software without 7 * restriction, including without limitation the rights to use, copy, 8 * modify, merge, publish, distribute, sublicense, and/or sell copies 9 * of the Software, and to permit persons to whom the Software is 10 * furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be 13 * included in all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 * 24 **********************************************************/ 25 26 #ifndef SVGA_STREAMOUT_H 27 #define SVGA_STREAMOUT_H 28 29 struct svga_shader; 30 31 struct svga_stream_output { 32 struct pipe_stream_output_info info; 33 unsigned pos_out_index; // position output index 34 unsigned id; 35 unsigned streammask; // bitmask to specify which streams are enabled 36 unsigned buffer_stream; 37 struct svga_winsys_buffer *declBuf; 38 }; 39 40 struct svga_stream_output * 41 svga_create_stream_output(struct svga_context *svga, 42 struct svga_shader *shader, 43 const struct pipe_stream_output_info *info); 44 45 enum pipe_error 46 svga_set_stream_output(struct svga_context *svga, 47 struct svga_stream_output *streamout); 48 49 void 50 svga_delete_stream_output(struct svga_context *svga, 51 struct svga_stream_output *streamout); 52 53 enum pipe_error 54 svga_rebind_stream_output_targets(struct svga_context *svga); 55 56 void 57 svga_create_stream_output_queries(struct svga_context *svga); 58 59 void 60 svga_destroy_stream_output_queries(struct svga_context *svga); 61 62 void 63 svga_begin_stream_output_queries(struct svga_context *svga, unsigned mask); 64 65 void 66 svga_end_stream_output_queries(struct svga_context *svga, unsigned mask); 67 68 unsigned 69 svga_get_primcount_from_stream_output(struct svga_context *svga, 70 unsigned stream); 71 72 #endif /* SVGA_STREAMOUT_H */ 73