tiny.simd.Rect

1pub const Rect = struct {2    x0_value: usize,3    y0_value: usize,4    xsize_value: usize,5    ysize_value: usize,67    pub fn empty() Rect {8        return init(0, 0, 0, 0);9    }1011    pub fn init(xbegin: usize, ybegin: usize, width: usize, height: usize) Rect {12        return .{13            .x0_value = xbegin,14            .y0_value = ybegin,15            .xsize_value = width,16            .ysize_value = height,17        };18    }1920    pub fn initClamped(21        xbegin: usize,22        ybegin: usize,23        xsize_max: usize,24        ysize_max: usize,25        xend: usize,26        yend: usize,27    ) Rect {28        return .{29            .x0_value = xbegin,30            .y0_value = ybegin,31            .xsize_value = clampedSize(xbegin, xsize_max, xend),32            .ysize_value = clampedSize(ybegin, ysize_max, yend),33        };34    }3536    pub fn fromImage(image: anytype) Rect {37        return init(0, 0, image.xsize(), image.ysize());38    }3940    pub fn subrect(41        self: Rect,42        xbegin: usize,43        ybegin: usize,44        xsize_max: usize,45        ysize_max: usize,46    ) GeometryError!Rect {47        const absolute_x = std.math.add(usize, self.x0_value, xbegin) catch48            return error.RowSizeOverflow;49        const absolute_y = std.math.add(usize, self.y0_value, ybegin) catch50            return error.RowSizeOverflow;51        const xend = std.math.add(usize, self.x0_value, self.xsize_value) catch52            return error.RowSizeOverflow;53        const yend = std.math.add(usize, self.y0_value, self.ysize_value) catch54            return error.RowSizeOverflow;55        return initClamped(56            absolute_x,57            absolute_y,58            xsize_max,59            ysize_max,60            xend,61            yend,62        );63    }6465    pub fn isInside(self: Rect, image: anytype) bool {66        const xend = std.math.add(usize, self.x0_value, self.xsize_value) catch67            return false;68        const yend = std.math.add(usize, self.y0_value, self.ysize_value) catch69            return false;70        return xend <= image.xsize() and yend <= image.ysize();71    }7273    pub fn constRow(self: Rect, comptime T: type, image: *const Image(T), y: usize) []const T {74        std.debug.assert(self.isInside(image));75        std.debug.assert(y < self.ysize_value);76        return image.constRow(y + self.y0_value)[self.x0_value..];77    }7879    pub fn mutableRow(self: Rect, comptime T: type, image: *const Image(T), y: usize) []T {80        std.debug.assert(self.isInside(image));81        std.debug.assert(y < self.ysize_value);82        return image.mutableRow(y + self.y0_value)[self.x0_value..];83    }8485    pub fn constPlaneRow(86        self: Rect,87        comptime T: type,88        image: *const Image3(T),89        component: usize,90        y: usize,91    ) []const T {92        std.debug.assert(self.isInside(image));93        std.debug.assert(y < self.ysize_value);94        return image.constPlaneRow(component, y + self.y0_value)[self.x0_value..];95    }9697    pub fn mutablePlaneRow(98        self: Rect,99        comptime T: type,100        image: *const Image3(T),101        component: usize,102        y: usize,103    ) []T {104        std.debug.assert(self.isInside(image));105        std.debug.assert(y < self.ysize_value);106        return image.mutablePlaneRow(component, y + self.y0_value)[self.x0_value..];107    }108109    pub fn x0(self: Rect) usize {110        return self.x0_value;111    }112113    pub fn y0(self: Rect) usize {114        return self.y0_value;115    }116117    pub fn xsize(self: Rect) usize {118        return self.xsize_value;119    }120121    pub fn ysize(self: Rect) usize {122        return self.ysize_value;123    }124};

1pub const Rect = image.Rect;