kernel_samsung_a34x-permissive/drivers/gpu/drm/mediatek/mtk_rect.c
2024-04-28 15:51:13 +02:00

64 lines
1.6 KiB
C

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