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Update to Slice2d

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This commit is contained in:
Christoffer Lerno
2024-12-17 23:12:16 +01:00
parent 4839d8861d
commit 226fbc191b
2 changed files with 40 additions and 8 deletions
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47
lib/std/core/array.c3
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@@ -17,15 +17,16 @@ macro index_of(array, element)
}
<*
@require @typekind(array) == VECTOR || @typekind(array) == ARRAY
@require @typekind(array[0]) == VECTOR || @typekind(array[0]) == ARRAY
@require @typekind(array_ptr) == POINTER
@require @typekind(*array_ptr) == VECTOR || @typekind(*array_ptr) == ARRAY
@require @typekind((*array_ptr)[0]) == VECTOR || @typekind((*array_ptr)[0]) == ARRAY
*>
macro slice2d(array, x = 0, xlen = 0, y = 0, ylen = 0)
macro slice2d(array_ptr, x = 0, xlen = 0, y = 0, ylen = 0)
{
if (xlen < 1) xlen = $typeof(array[0]).len + xlen;
if (ylen < 1) ylen = $typeof(array).len + ylen;
var $ElementType = $typeof(array[0][0]);
return Slice2d(<$ElementType>) { ($ElementType*)&array, $typeof(array[0]).len, y, ylen, x, xlen };
if (xlen < 1) xlen = $typeof((*array_ptr)[0]).len + xlen;
if (ylen < 1) ylen = $typeof((*array_ptr)).len + ylen;
var $ElementType = $typeof((*array_ptr)[0][0]);
return Slice2d(<$ElementType>) { ($ElementType*)array_ptr, $typeof((*array_ptr)[0]).len, y, ylen, x, xlen };
}
@@ -145,11 +146,41 @@ macro void Slice2d.@each_ref(&self; @body(usz[<2>], Type*))
<*
@require idy >= 0 && idy < self.ylen
*>
macro Type[] Slice2d.get(self, usz idy) @operator([])
macro Type[] Slice2d.get_row(self, usz idy) @operator([])
{
return (self.ptr + self.inner_len * (idy + self.ystart))[self.xstart:self.xlen];
}
macro Type Slice2d.get_coord(self, usz[<2>] coord)
{
return *self.get_coord_ref(coord);
}
macro Type Slice2d.get_xy(self, x, y)
{
return *self.get_xy_ref(x, y);
}
macro Type* Slice2d.get_xy_ref(self, x, y)
{
return self.ptr + self.inner_len * (y + self.ystart) + self.xstart + x;
}
macro Type* Slice2d.get_coord_ref(self, usz[<2>] coord)
{
return self.get_xy_ref(coord.x, coord.y);
}
macro void Slice2d.set_coord(self, usz[<2>] coord, Type value)
{
*self.get_coord_ref(coord) = value;
}
macro void Slice2d.set_xy(self, x, y, Type value)
{
*self.get_xy_ref(x, y) = value;
}
<*
@require y >= 0 && y < self.ylen
@require x >= 0 && x < self.xlen