vl_zscan.h revision 19bcd21ed151cf1716f2f87dff0f712231aa2ce7
1/************************************************************************** 2 * 3 * Copyright 2011 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 28#ifndef vl_zscan_h 29#define vl_zscan_h 30 31#include "pipe/p_compiler.h" 32#include "pipe/p_state.h" 33 34/* 35 * shader based zscan and quantification 36 * expect usage of vl_vertex_buffers as a todo list 37 */ 38struct vl_zscan 39{ 40 struct pipe_context *pipe; 41 42 unsigned buffer_width; 43 unsigned buffer_height; 44 45 unsigned num_channels; 46 47 unsigned blocks_per_line; 48 unsigned blocks_total; 49 50 void *rs_state; 51 void *blend; 52 53 void *samplers[3]; 54 55 void *vs, *fs; 56}; 57 58struct vl_zscan_buffer 59{ 60 struct vl_zscan *zscan; 61 62 struct pipe_viewport_state viewport; 63 struct pipe_framebuffer_state fb_state; 64 65 struct pipe_sampler_view *src, *layout, *quant; 66 struct pipe_surface *dst; 67}; 68 69extern const int vl_zscan_linear[]; 70extern const int vl_zscan_normal[]; 71extern const int vl_zscan_alternate[]; 72 73struct pipe_sampler_view * 74vl_zscan_layout(struct pipe_context *pipe, const int layout[64], unsigned blocks_per_line); 75 76bool 77vl_zscan_init(struct vl_zscan *zscan, struct pipe_context *pipe, 78 unsigned buffer_width, unsigned buffer_height, 79 unsigned blocks_per_line, unsigned blocks_total, 80 unsigned num_channels); 81 82void 83vl_zscan_cleanup(struct vl_zscan *zscan); 84 85bool 86vl_zscan_init_buffer(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer, 87 struct pipe_sampler_view *src, struct pipe_surface *dst); 88 89void 90vl_zscan_cleanup_buffer(struct vl_zscan_buffer *buffer); 91 92void 93vl_zscan_set_layout(struct vl_zscan_buffer *buffer, struct pipe_sampler_view *layout); 94 95void 96vl_zscan_upload_quant(struct vl_zscan_buffer *buffer, const uint8_t matrix[64], bool intra); 97 98void 99vl_zscan_render(struct vl_zscan_buffer *buffer, unsigned num_instances); 100 101#endif 102