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Auto merge of #21634 - servo:webgl, r=emilio

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Use a bytes channel in BufferData

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bors-servo 2018-09-07 06:23:12 -04:00 • committed by GitHub
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8 changed files with 118 additions and 136 deletions
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10
components/canvas/webgl_thread.rs
View file

@ -659,10 +659,12 @@ impl WebGLImpl {
ctx.gl().blend_func(src, dest),
WebGLCommand::BlendFuncSeparate(src_rgb, dest_rgb, src_alpha, dest_alpha) =>
ctx.gl().blend_func_separate(src_rgb, dest_rgb, src_alpha, dest_alpha),
WebGLCommand::BufferData(buffer_type, ref data, usage) =>
gl::buffer_data(ctx.gl(), buffer_type, data, usage),
WebGLCommand::BufferSubData(buffer_type, offset, ref data) =>
gl::buffer_sub_data(ctx.gl(), buffer_type, offset, data),
WebGLCommand::BufferData(buffer_type, ref receiver, usage) => {
gl::buffer_data(ctx.gl(), buffer_type, &receiver.recv().unwrap(), usage)
},
WebGLCommand::BufferSubData(buffer_type, offset, ref receiver) => {
gl::buffer_sub_data(ctx.gl(), buffer_type, offset, &receiver.recv().unwrap())
},
WebGLCommand::Clear(mask) =>
ctx.gl().clear(mask),
WebGLCommand::ClearColor(r, g, b, a) =>

9
components/canvas_traits/webgl.rs
View file

@ -4,6 +4,7 @@
use euclid::Size2D;
use gleam::gl;
use ipc_channel::ipc::IpcBytesReceiver;
use offscreen_gl_context::{GLContextAttributes, GLLimits};
use serde_bytes::ByteBuf;
use std::borrow::Cow;
@ -24,7 +25,7 @@ pub use ::webgl_channel::WebGLPipeline;
pub use ::webgl_channel::WebGLChan;
/// WebGL Message API
#[derive(Clone, Deserialize, Serialize)]
#[derive(Deserialize, Serialize)]
pub enum WebGLMsg {
/// Creates a new WebGLContext.
CreateContext(WebGLVersion, Size2D<i32>, GLContextAttributes,
@ -155,7 +156,7 @@ impl WebGLMsgSender {
}
/// WebGL Commands for a specific WebGLContext
#[derive(Clone, Debug, Deserialize, Serialize)]
#[derive(Debug, Deserialize, Serialize)]
pub enum WebGLCommand {
GetContextAttributes(WebGLSender<GLContextAttributes>),
ActiveTexture(u32),
@ -167,8 +168,8 @@ pub enum WebGLCommand {
AttachShader(WebGLProgramId, WebGLShaderId),
DetachShader(WebGLProgramId, WebGLShaderId),
BindAttribLocation(WebGLProgramId, u32, String),
BufferData(u32, ByteBuf, u32),
BufferSubData(u32, isize, ByteBuf),
BufferData(u32, IpcBytesReceiver, u32),
BufferSubData(u32, isize, IpcBytesReceiver),
Clear(u32),
ClearColor(f32, f32, f32, f32),
ClearDepth(f32),

14
components/canvas_traits/webgl_channel/mod.rs
View file

@ -16,12 +16,24 @@ lazy_static! {
static ref IS_MULTIPROCESS: bool = { opts::multiprocess() };
}
#[derive(Clone, Deserialize, Serialize)]
#[derive(Deserialize, Serialize)]
pub enum WebGLSender<T: Serialize> {
Ipc(ipc::WebGLSender<T>),
Mpsc(mpsc::WebGLSender<T>),
}
impl<T> Clone for WebGLSender<T>
where
T: Serialize,
{
fn clone(&self) -> Self {
match *self {
WebGLSender::Ipc(ref chan) => WebGLSender::Ipc(chan.clone()),
WebGLSender::Mpsc(ref chan) => WebGLSender::Mpsc(chan.clone()),
}
}
}
impl<T: Serialize> fmt::Debug for WebGLSender<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "WebGLSender(..)")

7
components/canvas_traits/webgl_channel/mpsc.rs
View file

@ -26,10 +26,15 @@ macro_rules! unreachable_serializable {
};
}
#[derive(Clone)]
pub struct WebGLSender<T>(mpsc::Sender<T>);
pub struct WebGLReceiver<T>(mpsc::Receiver<T>);
impl<T> Clone for WebGLSender<T> {
fn clone(&self) -> Self {
WebGLSender(self.0.clone())
}
}
impl<T> WebGLSender<T> {
#[inline]
pub fn send(&self, data: T) -> Result<(), mpsc::SendError<T>> {

10
components/script/dom/webgl2renderingcontext.rs
View file

@ -961,7 +961,10 @@ impl WebGL2RenderingContextMethods for WebGL2RenderingContext {
count: i32,
primcount: i32,
) {
self.base.draw_arrays_instanced(mode, first, count, primcount);
handle_potential_webgl_error!(
self.base,
self.base.draw_arrays_instanced(mode, first, count, primcount)
)
}
/// https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.9
@ -973,7 +976,10 @@ impl WebGL2RenderingContextMethods for WebGL2RenderingContext {
offset: i64,
primcount: i32,
) {
self.base.draw_elements_instanced(mode, count, type_, offset, primcount);
handle_potential_webgl_error!(
self.base,
self.base.draw_elements_instanced(mode, count, type_, offset, primcount)
)
}
/// https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.9

10
components/script/dom/webgl_extensions/ext/angleinstancedarrays.rs
View file

@ -71,7 +71,10 @@ impl ANGLEInstancedArraysMethods for ANGLEInstancedArrays {
count: i32,
primcount: i32,
) {
self.ctx.draw_arrays_instanced(mode, first, count, primcount);
handle_potential_webgl_error!(
self.ctx,
self.ctx.draw_arrays_instanced(mode, first, count, primcount)
)
}
// https://www.khronos.org/registry/webgl/extensions/ANGLE_instanced_arrays/
@ -83,7 +86,10 @@ impl ANGLEInstancedArraysMethods for ANGLEInstancedArrays {
offset: i64,
primcount: i32,
) {
self.ctx.draw_elements_instanced(mode, count, type_, offset, primcount);
handle_potential_webgl_error!(
self.ctx,
self.ctx.draw_elements_instanced(mode, count, type_, offset, primcount)
)
}
fn VertexAttribDivisorANGLE(&self, index: u32, divisor: u32) {

16
components/script/dom/webglbuffer.rs
View file

@ -13,6 +13,7 @@ use dom::bindings::root::DomRoot;
use dom::webglobject::WebGLObject;
use dom::webglrenderingcontext::WebGLRenderingContext;
use dom_struct::dom_struct;
use ipc_channel::ipc;
use std::cell::Cell;
#[dom_struct]
@ -62,10 +63,7 @@ impl WebGLBuffer {
self.id
}
pub fn buffer_data<T>(&self, target: u32, data: T, usage: u32) -> WebGLResult<()>
where
T: Into<Vec<u8>>,
{
pub fn buffer_data(&self, data: &[u8], usage: u32) -> WebGLResult<()> {
match usage {
WebGLRenderingContextConstants::STREAM_DRAW |
WebGLRenderingContextConstants::STATIC_DRAW |
@ -73,17 +71,13 @@ impl WebGLBuffer {
_ => return Err(WebGLError::InvalidEnum),
}
if let Some(previous_target) = self.target.get() {
if target != previous_target {
return Err(WebGLError::InvalidOperation);
}
}
let data = data.into();
self.capacity.set(data.len());
self.usage.set(usage);
let (sender, receiver) = ipc::bytes_channel().unwrap();
self.upcast::<WebGLObject>()
.context()
.send_command(WebGLCommand::BufferData(target, data.into(), usage));
.send_command(WebGLCommand::BufferData(self.target.get().unwrap(), receiver, usage));
sender.send(data).unwrap();
Ok(())
}

178
components/script/dom/webglrenderingcontext.rs
View file

@ -52,6 +52,7 @@ use dom::window::Window;
use dom_struct::dom_struct;
use euclid::Size2D;
use half::f16;
use ipc_channel::ipc;
use js::jsapi::{JSContext, JSObject, Type};
use js::jsval::{BooleanValue, DoubleValue, Int32Value, UInt32Value, JSVal};
use js::jsval::{ObjectValue, NullValue, UndefinedValue};
@ -336,17 +337,12 @@ impl WebGLRenderingContext {
//
// The WebGL spec mentions a couple more operations that trigger
// this: clear() and getParameter(IMPLEMENTATION_COLOR_READ_*).
fn validate_framebuffer_complete(&self) -> bool {
fn validate_framebuffer(&self) -> WebGLResult<()> {
match self.bound_framebuffer.get() {
Some(fb) => match fb.check_status() {
constants::FRAMEBUFFER_COMPLETE => return true,
_ => {
self.webgl_error(InvalidFramebufferOperation);
return false;
}
Some(ref fb) if fb.check_status() != constants::FRAMEBUFFER_COMPLETE => {
Err(InvalidFramebufferOperation)
},
// The default framebuffer is always complete.
None => return true,
_ => Ok(()),
}
}
@ -1076,48 +1072,38 @@ impl WebGLRenderingContext {
first: i32,
count: i32,
primcount: i32,
) {
) -> WebGLResult<()> {
match mode {
constants::POINTS | constants::LINE_STRIP |
constants::LINE_LOOP | constants::LINES |
constants::TRIANGLE_STRIP | constants::TRIANGLE_FAN |
constants::TRIANGLES => {},
_ => {
return self.webgl_error(InvalidEnum);
return Err(InvalidEnum);
}
}
if first < 0 || count < 0 || primcount < 0 {
return self.webgl_error(InvalidValue);
return Err(InvalidValue);
}
let current_program = handle_potential_webgl_error!(
self,
self.current_program.get().ok_or(InvalidOperation),
return
);
let current_program = self.current_program.get().ok_or(InvalidOperation)?;
let required_len = if count > 0 {
handle_potential_webgl_error!(
self,
first.checked_add(count).map(|len| len as u32).ok_or(InvalidOperation),
return
)
first.checked_add(count).map(|len| len as u32).ok_or(InvalidOperation)?
} else {
0
};
handle_potential_webgl_error!(
self,
self.current_vao().validate_for_draw(required_len, primcount as u32, &current_program.active_attribs()),
return
);
self.current_vao().validate_for_draw(
required_len,
primcount as u32,
&current_program.active_attribs(),
)?;
if !self.validate_framebuffer_complete() {
return;
}
self.validate_framebuffer()?;
if count == 0 || primcount == 0 {
return;
return Ok(());
}
self.send_command(if primcount == 1 {
@ -1126,6 +1112,7 @@ impl WebGLRenderingContext {
WebGLCommand::DrawArraysInstanced { mode, first, count, primcount }
});
self.mark_as_dirty();
Ok(())
}
// https://www.khronos.org/registry/webgl/extensions/ANGLE_instanced_arrays/
@ -1136,62 +1123,47 @@ impl WebGLRenderingContext {
type_: u32,
offset: i64,
primcount: i32,
) {
) -> WebGLResult<()> {
match mode {
constants::POINTS | constants::LINE_STRIP |
constants::LINE_LOOP | constants::LINES |
constants::TRIANGLE_STRIP | constants::TRIANGLE_FAN |
constants::TRIANGLES => {},
_ => {
return self.webgl_error(InvalidEnum);
return Err(InvalidEnum);
}
}
if count < 0 || offset < 0 || primcount < 0 {
return self.webgl_error(InvalidValue);
return Err(InvalidValue);
}
let type_size = match type_ {
constants::UNSIGNED_BYTE => 1,
constants::UNSIGNED_SHORT => 2,
constants::UNSIGNED_INT if self.extension_manager.is_element_index_uint_enabled() => 4,
_ => return self.webgl_error(InvalidEnum),
_ => return Err(InvalidEnum),
};
if offset % type_size != 0 {
return self.webgl_error(InvalidOperation);
return Err(InvalidOperation);
}
let current_program = handle_potential_webgl_error!(
self,
self.current_program.get().ok_or(InvalidOperation),
return
);
let array_buffer = handle_potential_webgl_error!(
self,
self.current_vao().element_array_buffer().get().ok_or(InvalidOperation),
return
);
let current_program = self.current_program.get().ok_or(InvalidOperation)?;
let array_buffer = self.current_vao().element_array_buffer().get().ok_or(InvalidOperation)?;
if count > 0 && primcount > 0 {
// This operation cannot overflow in u64 and we know all those values are nonnegative.
let val = offset as u64 + (count as u64 * type_size as u64);
if val > array_buffer.capacity() as u64 {
return self.webgl_error(InvalidOperation);
return Err(InvalidOperation);
}
}
// TODO(nox): Pass the correct number of vertices required.
handle_potential_webgl_error!(
self,
self.current_vao().validate_for_draw(0, primcount as u32, &current_program.active_attribs()),
return
);
self.current_vao().validate_for_draw(0, primcount as u32, &current_program.active_attribs())?;
if !self.validate_framebuffer_complete() {
return;
}
self.validate_framebuffer()?;
if count == 0 || primcount == 0 {
return;
return Ok(());
}
let offset = offset as u32;
@ -1201,6 +1173,7 @@ impl WebGLRenderingContext {
WebGLCommand::DrawElementsInstanced { mode, count, type_, offset, primcount }
});
self.mark_as_dirty();
Ok(())
}
pub fn vertex_attrib_divisor(&self, index: u32, divisor: u32) {
@ -1219,9 +1192,7 @@ impl WebGLRenderingContext {
//
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#2.2
pub fn get_image_data(&self, mut width: u32, mut height: u32) -> Option<Vec<u8>> {
if !self.validate_framebuffer_complete() {
return None;
}
handle_potential_webgl_error!(self, self.validate_framebuffer(), return None);
if let Some((fb_width, fb_height)) = self.get_current_framebuffer_size() {
width = cmp::min(width, fb_width as u32);
@ -1425,18 +1396,12 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
// GL_OES_read_format support (assuming an underlying GLES
// driver. Desktop is happy to format convert for us).
constants::IMPLEMENTATION_COLOR_READ_FORMAT => {
if !self.validate_framebuffer_complete() {
return NullValue();
} else {
return Int32Value(constants::RGBA as i32);
}
handle_potential_webgl_error!(self, self.validate_framebuffer(), return NullValue());
return Int32Value(constants::RGBA as i32);
}
constants::IMPLEMENTATION_COLOR_READ_TYPE => {
if !self.validate_framebuffer_complete() {
return NullValue();
} else {
return Int32Value(constants::UNSIGNED_BYTE as i32);
}
handle_potential_webgl_error!(self, self.validate_framebuffer(), return NullValue());
return Int32Value(constants::UNSIGNED_BYTE as i32);
}
constants::COMPRESSED_TEXTURE_FORMATS => {
// FIXME(nox): https://github.com/servo/servo/issues/20594
@ -1882,34 +1847,32 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.5
#[allow(unsafe_code)]
fn BufferData(
&self,
target: u32,
data: Option<ArrayBufferViewOrArrayBuffer>,
usage: u32,
) {
let data = match data {
Some(ArrayBufferViewOrArrayBuffer::ArrayBuffer(data)) => data.to_vec(),
Some(ArrayBufferViewOrArrayBuffer::ArrayBufferView(data)) => data.to_vec(),
None => return self.webgl_error(InvalidValue),
};
let data = handle_potential_webgl_error!(self, data.ok_or(InvalidValue), return);
let bound_buffer = handle_potential_webgl_error!(self, self.bound_buffer(target), return);
let bound_buffer = match bound_buffer {
Some(bound_buffer) => bound_buffer,
None => return self.webgl_error(InvalidOperation),
};
let bound_buffer = handle_potential_webgl_error!(self, bound_buffer.ok_or(InvalidOperation), return);
handle_potential_webgl_error!(self, bound_buffer.buffer_data(target, data, usage));
let data = unsafe {
// Safe because we don't do anything with JS until the end of the method.
match data {
ArrayBufferViewOrArrayBuffer::ArrayBuffer(ref data) => data.as_slice(),
ArrayBufferViewOrArrayBuffer::ArrayBufferView(ref data) => data.as_slice(),
}
};
handle_potential_webgl_error!(self, bound_buffer.buffer_data(data, usage));
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.5
fn BufferData_(&self, target: u32, size: i64, usage: u32) {
let bound_buffer = handle_potential_webgl_error!(self, self.bound_buffer(target), return);
let bound_buffer = match bound_buffer {
Some(bound_buffer) => bound_buffer,
None => return self.webgl_error(InvalidOperation),
};
let bound_buffer = handle_potential_webgl_error!(self, bound_buffer.ok_or(InvalidOperation), return);
if size < 0 {
return self.webgl_error(InvalidValue);
@ -1918,35 +1881,36 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
// FIXME: Allocating a buffer based on user-requested size is
// not great, but we don't have a fallible allocation to try.
let data = vec![0u8; size as usize];
handle_potential_webgl_error!(self, bound_buffer.buffer_data(target, data, usage));
handle_potential_webgl_error!(self, bound_buffer.buffer_data(&data, usage));
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.5
#[allow(unsafe_code)]
fn BufferSubData(&self, target: u32, offset: i64, data: ArrayBufferViewOrArrayBuffer) {
let data_vec = match data {
// Typed array is rooted, so we can safely temporarily retrieve its slice
ArrayBufferViewOrArrayBuffer::ArrayBuffer(inner) => inner.to_vec(),
ArrayBufferViewOrArrayBuffer::ArrayBufferView(inner) => inner.to_vec(),
};
let bound_buffer = handle_potential_webgl_error!(self, self.bound_buffer(target), return);
let bound_buffer = match bound_buffer {
Some(bound_buffer) => bound_buffer,
None => return self.webgl_error(InvalidOperation),
};
let bound_buffer = handle_potential_webgl_error!(self, bound_buffer.ok_or(InvalidOperation), return);
if offset < 0 {
return self.webgl_error(InvalidValue);
}
if (offset as usize) + data_vec.len() > bound_buffer.capacity() {
let data = unsafe {
// Safe because we don't do anything with JS until the end of the method.
match data {
ArrayBufferViewOrArrayBuffer::ArrayBuffer(ref data) => data.as_slice(),
ArrayBufferViewOrArrayBuffer::ArrayBufferView(ref data) => data.as_slice(),
}
};
if (offset as u64) + data.len() as u64 > bound_buffer.capacity() as u64 {
return self.webgl_error(InvalidValue);
}
let (sender, receiver) = ipc::bytes_channel().unwrap();
self.send_command(WebGLCommand::BufferSubData(
target,
offset as isize,
data_vec.into(),
receiver,
));
sender.send(data).unwrap();
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.8
@ -1970,9 +1934,7 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.8
fn CopyTexImage2D(&self, target: u32, level: i32, internal_format: u32,
x: i32, y: i32, width: i32, height: i32, border: i32) {
if !self.validate_framebuffer_complete() {
return;
}
handle_potential_webgl_error!(self, self.validate_framebuffer(), return);
let validator = CommonTexImage2DValidator::new(self, target, level,
internal_format, width,
@ -2027,9 +1989,7 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.8
fn CopyTexSubImage2D(&self, target: u32, level: i32, xoffset: i32, yoffset: i32,
x: i32, y: i32, width: i32, height: i32) {
if !self.validate_framebuffer_complete() {
return;
}
handle_potential_webgl_error!(self, self.validate_framebuffer(), return);
// NB: We use a dummy (valid) format and border in order to reuse the
// common validations, but this should have its own validator.
@ -2070,9 +2030,7 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.11
fn Clear(&self, mask: u32) {
if !self.validate_framebuffer_complete() {
return;
}
handle_potential_webgl_error!(self, self.validate_framebuffer(), return);
if mask & !(constants::DEPTH_BUFFER_BIT | constants::STENCIL_BUFFER_BIT | constants::COLOR_BUFFER_BIT) != 0 {
return self.webgl_error(InvalidValue);
}
@ -2328,12 +2286,12 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.11
fn DrawArrays(&self, mode: u32, first: i32, count: i32) {
self.draw_arrays_instanced(mode, first, count, 1);
handle_potential_webgl_error!(self, self.draw_arrays_instanced(mode, first, count, 1));
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.11
fn DrawElements(&self, mode: u32, count: i32, type_: u32, offset: i64) {
self.draw_elements_instanced(mode, count, type_, offset, 1);
handle_potential_webgl_error!(self, self.draw_elements_instanced(mode, count, type_, offset, 1));
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
@ -2855,9 +2813,7 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
Some(ref mut data) => (data.get_array_type(), unsafe { data.as_mut_slice() }),
};
if !self.validate_framebuffer_complete() {
return;
}
handle_potential_webgl_error!(self, self.validate_framebuffer(), return);
match array_type {
Type::Uint8 => (),