vl_vertex_buffers.h revision 794cde3f5ef59cf603be284fbc8de33d2cda7d2c
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#include "vl_types.h" 33 34/* vertex buffers act as a todo list 35 * uploading all the usefull informations to video ram 36 * so a vertex shader can work with them 37 */ 38 39/* inputs to the vertex shaders */ 40enum VS_INPUT 41{ 42 VS_I_RECT, 43 VS_I_VPOS, 44 VS_I_EB, 45 VS_I_FLAGS, 46 VS_I_MV0_TOP, 47 VS_I_MV0_BOTTOM, 48 VS_I_MV1_TOP, 49 VS_I_MV1_BOTTOM, 50 51 NUM_VS_INPUTS 52}; 53 54struct vl_vertex_buffer 55{ 56 unsigned size; 57 unsigned num_not_empty; 58 unsigned num_empty; 59 struct pipe_resource *resource; 60 struct pipe_transfer *transfer; 61 struct vl_vertex_stream *start; 62 struct vl_vertex_stream *end; 63}; 64 65struct pipe_vertex_buffer vl_vb_upload_quads(struct pipe_context *pipe, 66 unsigned blocks_x, unsigned blocks_y); 67 68void *vl_vb_get_elems_state(struct pipe_context *pipe, int component); 69 70struct pipe_vertex_buffer vl_vb_init(struct vl_vertex_buffer *buffer, 71 struct pipe_context *pipe, 72 unsigned max_blocks); 73 74void vl_vb_map(struct vl_vertex_buffer *buffer, struct pipe_context *pipe); 75 76void vl_vb_add_block(struct vl_vertex_buffer *buffer, struct pipe_mpeg12_macroblock *mb, 77 const unsigned (*empty_block_mask)[3][2][2]); 78 79void vl_vb_unmap(struct vl_vertex_buffer *buffer, struct pipe_context *pipe); 80 81void vl_vb_restart(struct vl_vertex_buffer *buffer, 82 unsigned *not_empty_start_instance, unsigned *not_empty_num_instances, 83 unsigned *empty_start_instance, unsigned *empty_num_instances); 84 85void vl_vb_cleanup(struct vl_vertex_buffer *buffer); 86 87#endif 88