1 /************************************************************************** 2 * 3 * Copyright 2011 Christian Knig 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 */ 38 struct 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 58 struct vl_zscan_buffer 59 { 60 struct pipe_viewport_state viewport; 61 struct pipe_framebuffer_state fb_state; 62 63 struct pipe_sampler_view *src, *layout, *quant; 64 struct pipe_surface *dst; 65 }; 66 67 extern const int vl_zscan_linear[]; 68 extern const int vl_zscan_normal[]; 69 extern const int vl_zscan_alternate[]; 70 71 struct pipe_sampler_view * 72 vl_zscan_layout(struct pipe_context *pipe, const int layout[64], unsigned blocks_per_line); 73 74 bool 75 vl_zscan_init(struct vl_zscan *zscan, struct pipe_context *pipe, 76 unsigned buffer_width, unsigned buffer_height, 77 unsigned blocks_per_line, unsigned blocks_total, 78 unsigned num_channels); 79 80 void 81 vl_zscan_cleanup(struct vl_zscan *zscan); 82 83 bool 84 vl_zscan_init_buffer(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer, 85 struct pipe_sampler_view *src, struct pipe_surface *dst); 86 87 void 88 vl_zscan_cleanup_buffer(struct vl_zscan_buffer *buffer); 89 90 void 91 vl_zscan_set_layout(struct vl_zscan_buffer *buffer, struct pipe_sampler_view *layout); 92 93 void 94 vl_zscan_upload_quant(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer, 95 const uint8_t matrix[64], bool intra); 96 97 void 98 vl_zscan_render(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer, unsigned num_instances); 99 100 #endif 101
