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 VMWARE 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 "util/vl_zscan_data.h" 32 #include "util/compiler.h" 33 #include "pipe/p_state.h" 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 /* 40 * shader based zscan and quantification 41 * expect usage of vl_vertex_buffers as a todo list 42 */ 43 struct vl_zscan 44 { 45 struct pipe_context *pipe; 46 47 unsigned buffer_width; 48 unsigned buffer_height; 49 50 unsigned num_channels; 51 52 unsigned blocks_per_line; 53 unsigned blocks_total; 54 55 void *rs_state; 56 void *blend; 57 58 void *samplers[3]; 59 60 void *vs, *fs; 61 }; 62 63 struct vl_zscan_buffer 64 { 65 struct pipe_viewport_state viewport; 66 struct pipe_framebuffer_state fb_state; 67 68 struct pipe_sampler_view *src, *layout, *quant; 69 struct pipe_surface *dst; 70 }; 71 72 struct pipe_sampler_view * 73 vl_zscan_layout(struct pipe_context *pipe, const int layout[64], unsigned blocks_per_line); 74 75 bool 76 vl_zscan_init(struct vl_zscan *zscan, struct pipe_context *pipe, 77 unsigned buffer_width, unsigned buffer_height, 78 unsigned blocks_per_line, unsigned blocks_total, 79 unsigned num_channels); 80 81 void 82 vl_zscan_cleanup(struct vl_zscan *zscan); 83 84 bool 85 vl_zscan_init_buffer(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer, 86 struct pipe_sampler_view *src, struct pipe_surface *dst); 87 88 void 89 vl_zscan_cleanup_buffer(struct vl_zscan_buffer *buffer); 90 91 void 92 vl_zscan_set_layout(struct vl_zscan_buffer *buffer, struct pipe_sampler_view *layout); 93 94 void 95 vl_zscan_upload_quant(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer, 96 const uint8_t matrix[64], bool intra); 97 98 void 99 vl_zscan_render(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer, unsigned num_instances); 100 101 #ifdef __cplusplus 102 } 103 #endif 104 105 #endif 106