writeWithResolution

resolution == 0 => don't write the pHYs chunk

Parameters

output:*std.Io.Writer: *std.Io.Writer
pixels:[]u8: []u8
width:u32: u32
height:u32: u32
resolution:u32: u32

Source

Implementation

pub fn writeWithResolution(output: *std.Io.Writer, pixels: []u8, width: u32, height: u32, resolution: u32) !void {
    std.debug.assert(output.buffer.len >= min_buffer_size);
    var png_encoder = PNGEncoder{
        .resolution = resolution,
        .output = output,
    };
    const res = dvui.c.stbi_write_png_to_func(
        &stbi_write_png_callback,
        &png_encoder,
        @intCast(width),
        @intCast(height),
        dvui.c.STBI_rgb_alpha,
        pixels.ptr,
        @intCast(width * 4),
    );
    if (res == 0) return dvui.StbImageError.stbImageError;
}