vl_vertex_buffers.h revision 5ed848129cb57269e80caf2c1ca522ae41f4500b
1/************************************************************************** 2 * 3 * Copyright 2010 Christian König 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27#ifndef vl_vertex_buffers_h 28#define vl_vertex_buffers_h 29 30#include <pipe/p_state.h> 31#include <pipe/p_video_state.h> 32 33#include "vl_types.h" 34 35/* vertex buffers act as a todo list 36 * uploading all the usefull informations to video ram 37 * so a vertex shader can work with them 38 */ 39 40/* inputs to the vertex shaders */ 41enum VS_INPUT 42{ 43 VS_I_RECT, 44 VS_I_VPOS, 45 VS_I_EB, 46 VS_I_FLAGS, 47 VS_I_MV0_TOP, 48 VS_I_MV0_BOTTOM, 49 VS_I_MV1_TOP, 50 VS_I_MV1_BOTTOM, 51 52 NUM_VS_INPUTS 53}; 54 55struct vl_vertex_buffer 56{ 57 unsigned size; 58 unsigned num_not_empty; 59 unsigned num_empty; 60 struct pipe_resource *resource; 61 struct pipe_transfer *transfer; 62 struct vl_vertex_stream *start; 63 struct vl_vertex_stream *end; 64}; 65 66struct pipe_vertex_buffer vl_vb_upload_quads(struct pipe_context *pipe, 67 unsigned blocks_x, unsigned blocks_y); 68 69void *vl_vb_get_elems_state(struct pipe_context *pipe, int component); 70 71struct pipe_vertex_buffer vl_vb_init(struct vl_vertex_buffer *buffer, 72 struct pipe_context *pipe, 73 unsigned max_blocks); 74 75void vl_vb_map(struct vl_vertex_buffer *buffer, struct pipe_context *pipe); 76 77void vl_vb_add_block(struct vl_vertex_buffer *buffer, struct pipe_mpeg12_macroblock *mb, 78 const unsigned (*empty_block_mask)[3][2][2]); 79 80void vl_vb_unmap(struct vl_vertex_buffer *buffer, struct pipe_context *pipe); 81 82void vl_vb_restart(struct vl_vertex_buffer *buffer, 83 unsigned *not_empty_start_instance, unsigned *not_empty_num_instances, 84 unsigned *empty_start_instance, unsigned *empty_num_instances); 85 86void vl_vb_cleanup(struct vl_vertex_buffer *buffer); 87 88#endif /* vl_vertex_buffers_h */ 89