From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- gfx/wr/examples/common/image_helper.rs | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 gfx/wr/examples/common/image_helper.rs (limited to 'gfx/wr/examples/common/image_helper.rs') diff --git a/gfx/wr/examples/common/image_helper.rs b/gfx/wr/examples/common/image_helper.rs new file mode 100644 index 0000000000..368674c0e1 --- /dev/null +++ b/gfx/wr/examples/common/image_helper.rs @@ -0,0 +1,19 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +use webrender::api::{ImageData, ImageDescriptor, ImageFormat, ImageDescriptorFlags}; + +pub fn make_checkerboard(width: u32, height: u32) -> (ImageDescriptor, ImageData) { + let mut image_data = Vec::new(); + for y in 0 .. height { + for x in 0 .. width { + let lum = 255 * (((x & 8) == 0) ^ ((y & 8) == 0)) as u8; + image_data.extend_from_slice(&[lum, lum, lum, 0xff]); + } + } + ( + ImageDescriptor::new(width as i32, height as i32, ImageFormat::BGRA8, ImageDescriptorFlags::IS_OPAQUE), + ImageData::new(image_data) + ) +} -- cgit v1.2.3