textureUpdateSubRect

Update a sub-rectangle of a dvui.Texture from premultiplied alpha pixels. The pixel pointer must point to the start of the full texture row that contains the sub-rect (i.e. same pointer as full update, with pitch = texture.width * bpp). The backend reads only the rows/columns within the given rect.

Parameters

self:Backend: Backend
texture:dvui.Texture: dvui.Texture
pixels:[*]const u8: [*]const u8
x:u32: u32
y:u32: u32
w:u32: u32
h:u32: u32

Source

Implementation

pub fn textureUpdateSubRect(self: Backend, texture: dvui.Texture, pixels: [*]const u8, x: u32, y: u32, w: u32, h: u32) TextureError!void {
    if (comptime !@hasDecl(Implementation, "textureUpdateSubRect")) return TextureError.NotImplemented else {
        return self.impl.textureUpdateSubRect(texture, pixels, x, y, w, h);
    }
}