31 lines
1.1 KiB
Rust
31 lines
1.1 KiB
Rust
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// Copyright 2017 The Servo Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use compute_shader::buffer::{Buffer, BufferData, Protection};
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use compute_shader::device::Device;
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use euclid::size::Size2D;
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use std::mem;
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pub struct CoverageBuffer {
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pub buffer: Buffer,
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}
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impl CoverageBuffer {
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pub fn new(device: &Device, size: &Size2D<u32>) -> Result<CoverageBuffer, ()> {
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let size = size.width as usize * size.height as usize * mem::size_of::<u32>();
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let buffer = try!(device.create_buffer(Protection::ReadWrite,
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BufferData::Uninitialized(size)).map_err(drop));
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Ok(CoverageBuffer {
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buffer: buffer,
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})
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}
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}
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