Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-07-22 06:43:40 +01:00
Code Issues Projects Releases Packages Wiki Activity

Implement the basic WebGL2 buffer data operations

Browse source 
Adds support for `bufferData`, `bufferSubData`, `copyBufferSubData`
and `getBufferSubData`.

Reference: https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.3
This commit is contained in:
Mátyás Mustoha 2019-10-17 11:34:06 +02:00
parent f626355b67
commit 4050b7f9ec
13 changed files with 510 additions and 197 deletions
Download patch file Download diff file Expand all files Collapse all files

21
components/canvas/webgl_thread.rs
View file

@ -55,6 +55,7 @@ use sparkle::gl::Gl;
use std::borrow::Cow;
use std::cell::{Cell, RefCell};
use std::rc::Rc;
use std::slice;
use std::sync::{Arc, Mutex};
use std::thread;
use surfman;
@ -1013,6 +1014,26 @@ impl WebGLImpl {
WebGLCommand::BufferSubData(buffer_type, offset, ref receiver) => {
gl::buffer_sub_data(gl, buffer_type, offset, &receiver.recv().unwrap())
},
WebGLCommand::CopyBufferSubData(src, dst, src_offset, dst_offset, size) => {
gl.copy_buffer_sub_data(
src,
dst,
src_offset as isize,
dst_offset as isize,
size as isize,
);
},
WebGLCommand::GetBufferSubData(buffer_type, offset, length, ref sender) => {
let ptr = gl.map_buffer_range(
buffer_type,
offset as isize,
length as isize,
gl::MAP_READ_BIT,
);
let data: &[u8] = unsafe { slice::from_raw_parts(ptr as _, length) };
sender.send(data).unwrap();
gl.unmap_buffer(buffer_type);
},
WebGLCommand::Clear(mask) => {
gl.clear(mask);
},