64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2019 MediaTek Inc.
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*/
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#include "mtk_rect.h"
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#include "mtk_log.h"
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void mtk_rect_make(struct mtk_rect *in, int left, int top, int width,
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int height)
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{
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in->x = left;
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in->y = top;
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in->width = width;
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in->height = height;
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}
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void mtk_rect_set(struct mtk_rect *in, int left, int top, int right, int bottom)
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{
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in->x = left;
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in->y = top;
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in->width = right - left + 1;
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in->height = bottom - top + 1;
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}
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void mtk_rect_join(const struct mtk_rect *in1, const struct mtk_rect *in2,
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struct mtk_rect *out)
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{
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int left = in1->x;
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int top = in1->y;
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int right = in1->x + in1->width - 1;
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int bottom = in1->y + in1->height - 1;
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int fLeft = in2->x;
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int fTop = in2->y;
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int fRight = in2->x + in2->width - 1;
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int fBottom = in2->y + in2->height - 1;
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int in2_x = in2->x;
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int in2_y = in2->y;
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int in2_w = in2->width;
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int in2_h = in2->height;
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/* do nothing if the params are empty */
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if (left > right || top > bottom) {
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mtk_rect_set(out, fLeft, fTop, fRight, fBottom);
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} else if (fLeft > fRight || fTop > fBottom) {
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/* if we are empty, just assign */
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mtk_rect_set(out, left, top, right, bottom);
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} else {
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if (left < fLeft)
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fLeft = left;
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if (top < fTop)
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fTop = top;
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if (right > fRight)
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fRight = right;
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if (bottom > fBottom)
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fBottom = bottom;
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mtk_rect_set(out, fLeft, fTop, fRight, fBottom);
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}
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DDPDBG("%s (%d,%d,%d,%d) & (%d,%d,%d,%d) to (%d,%d,%d,%d)\n", __func__,
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in1->x, in1->y, in1->width, in1->height, in2_x, in2_y, in2_w,
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in2_h, in2->x, in2->y, in2->width, in2->height);
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}
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