101 lines
3.0 KiB
C
101 lines
3.0 KiB
C
/**************************************************************************
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*
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* Copyright 2011 Christian König
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef vl_zscan_h
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#define vl_zscan_h
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#include "pipe/p_compiler.h"
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#include "pipe/p_state.h"
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/*
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* shader based zscan and quantification
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* expect usage of vl_vertex_buffers as a todo list
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*/
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struct vl_zscan
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{
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struct pipe_context *pipe;
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unsigned buffer_width;
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unsigned buffer_height;
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unsigned num_channels;
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unsigned blocks_per_line;
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unsigned blocks_total;
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void *rs_state;
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void *blend;
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void *samplers[3];
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void *vs, *fs;
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};
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struct vl_zscan_buffer
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{
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struct pipe_viewport_state viewport;
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struct pipe_framebuffer_state fb_state;
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struct pipe_sampler_view *src, *layout, *quant;
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struct pipe_surface *dst;
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};
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extern const int vl_zscan_linear[];
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extern const int vl_zscan_normal[];
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extern const int vl_zscan_alternate[];
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struct pipe_sampler_view *
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vl_zscan_layout(struct pipe_context *pipe, const int layout[64], unsigned blocks_per_line);
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bool
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vl_zscan_init(struct vl_zscan *zscan, struct pipe_context *pipe,
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unsigned buffer_width, unsigned buffer_height,
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unsigned blocks_per_line, unsigned blocks_total,
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unsigned num_channels);
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void
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vl_zscan_cleanup(struct vl_zscan *zscan);
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bool
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vl_zscan_init_buffer(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer,
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struct pipe_sampler_view *src, struct pipe_surface *dst);
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void
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vl_zscan_cleanup_buffer(struct vl_zscan_buffer *buffer);
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void
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vl_zscan_set_layout(struct vl_zscan_buffer *buffer, struct pipe_sampler_view *layout);
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void
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vl_zscan_upload_quant(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer,
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const uint8_t matrix[64], bool intra);
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void
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vl_zscan_render(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer, unsigned num_instances);
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#endif
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