evgeny
38c9f229bc
- u_async.c: process immediate_queue BEFORE epoll_wait in uasync_poll - stcp_link.c: defensive NULL etcp_conn/etcp_link in stcp_link_close - utun_instance.c: move stcp_server_list_destroy_all to Phase J (before ETCP), add deferred drain in both Phase J and L - stcp.h/c: STCP_HS_ENC_CLIENT 6→38, STCP_HS_ENC_SERVER 7→39, exchange ed25519_pubkey in both handshake directions - etcp_connections.c: copy peer_ed25519 from STCP to ETCP_CONN in etcp_link_enter_ready_tcp; guard link->etcp in tcp_link_close_cb - chat_sync.c: fix lk->conn NULL dereference for TCP links - test_stcp.c: update stcp_server_create/stcp_client_connect callsites - tools/chat_tcp_test: change transport udp→tcp
60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
/*
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* Copyright 2016 Nu-book Inc.
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* Copyright 2016 ZXing authors
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*/
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// SPDX-License-Identifier: Apache-2.0
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#pragma once
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#include "DetectorResult.h"
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#include "Matrix.h"
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#include "PerspectiveTransform.h"
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#include <optional>
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#include <vector>
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namespace ZXing {
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/**
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* Samples an image for a rectangular matrix of bits of the given dimension. The sampling
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* transformation is determined by the coordinates of 4 points, in the original and transformed
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* image space.
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*
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* The following figure is showing the layout a 'pixel'. The point (0,0) is the upper left corner
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* of the first pixel. (1,1) is its lower right corner.
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*
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* 0 1 ... w
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* 0 #----#-- ... --#
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* | | ... |
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* | | ... |
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* 1 #----# ... --#
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* | | ... |
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*
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* | | ... |
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* h #----#-- ... --#
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*
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* @param image image to sample
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* @param width width of {@link BitMatrix} to sample from image
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* @param height height of {@link BitMatrix} to sample from image
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* @param mod2Pix transforming a module (grid) coordinate into an image (pixel) coordinate
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* @return {@link DetectorResult} representing a grid of points sampled from the image within a region
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* defined by the "src" parameters. Result is empty if transformation is invalid (out of bound access).
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*/
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DetectorResult SampleGrid(const BitMatrix& image, int width, int height, const PerspectiveTransform& mod2Pix);
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class ROI
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{
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public:
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int x0, x1, y0, y1;
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PerspectiveTransform mod2Pix;
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};
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using ROIs = std::vector<ROI>;
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DetectorResult SampleGrid(const BitMatrix& image, int width, int height, const ROIs& rois);
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DetectorResult SampleGrid(const BitMatrix& image, int width, int height, const PerspectiveTransform& mod2Pix,
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Matrix<std::optional<PointF>>&& apP, const std::vector<int>& apMX, const std::vector<int>& apMY);
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} // ZXing
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