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conversion: Extrapolate array_buffer_view_data

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And use it instead of the raw jsapi calls.
This commit is contained in:
Emilio Cobos Álvarez 2016-01-04 14:58:57 +01:00
parent 4d32444bf7
commit 9ad49c8aa1
4 changed files with 76 additions and 49 deletions
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48
components/script/dom/webglrenderingcontext.rs
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@ -9,7 +9,7 @@ use dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderi
use dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::{WebGLRenderingContextMethods};
use dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::{self, WebGLContextAttributes};
use dom::bindings::codegen::UnionTypes::ImageDataOrHTMLImageElementOrHTMLCanvasElementOrHTMLVideoElement;
use dom::bindings::conversions::ToJSValConvertible;
use dom::bindings::conversions::{ToJSValConvertible, array_buffer_view_to_vec};
use dom::bindings::global::{GlobalField, GlobalRef};
use dom::bindings::inheritance::Castable;
use dom::bindings::js::{JS, LayoutJS, MutNullableHeap, Root};
@ -29,7 +29,6 @@ use dom::webgluniformlocation::WebGLUniformLocation;
use euclid::size::Size2D;
use ipc_channel::ipc::{self, IpcSender};
use js::jsapi::{JSContext, JSObject, RootedValue};
use js::jsapi::{JS_GetObjectAsArrayBufferView};
use js::jsval::{BooleanValue, DoubleValue, Int32Value, JSVal, NullValue, UndefinedValue};
use net_traits::image::base::PixelFormat;
use net_traits::image_cache_task::ImageResponse;
@ -37,7 +36,6 @@ use offscreen_gl_context::GLContextAttributes;
use script_traits::ScriptMsg as ConstellationMsg;
use std::cell::Cell;
use std::sync::mpsc::channel;
use std::{ptr, slice, mem};
use util::str::DOMString;
use util::vec::byte_swap;
@ -166,20 +164,6 @@ impl WebGLRenderingContext {
self.canvas.upcast::<Node>().dirty(NodeDamage::OtherNodeDamage);
}
#[allow(unsafe_code)]
fn array_buffer_view_to_vec<T: Clone>(&self, data: *mut JSObject) -> Option<Vec<T>> {
unsafe {
let mut byte_length = 0;
let mut ptr = ptr::null_mut();
let buffer_data = JS_GetObjectAsArrayBufferView(data, &mut byte_length, &mut ptr);
if buffer_data.is_null() {
self.webgl_error(InvalidValue); // https://github.com/servo/servo/issues/5014
return None;
}
Some(slice::from_raw_parts(ptr as *mut T, byte_length as usize / mem::size_of::<T>()).to_vec())
}
}
fn vertex_attrib(&self, indx: u32, x: f32, y: f32, z: f32, w: f32) {
self.ipc_renderer
.send(CanvasMsg::WebGL(CanvasWebGLMsg::VertexAttrib(indx, x, y, z, w)))
@ -456,8 +440,12 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
Some(data) => data,
None => return self.webgl_error(InvalidValue),
};
if let Some(data_vec) = self.array_buffer_view_to_vec::<u8>(data) {
if let Some(data_vec) = array_buffer_view_to_vec::<u8>(data) {
handle_potential_webgl_error!(self, bound_buffer.buffer_data(target, &data_vec, usage));
} else {
// NB: array_buffer_view_to_vec should never fail when
// we have WebIDL support for Float32Array etc.
self.webgl_error(InvalidValue);
}
}
@ -480,13 +468,15 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
if offset < 0 {
return self.webgl_error(InvalidValue);
}
if let Some(data_vec) = self.array_buffer_view_to_vec::<u8>(data) {
if let Some(data_vec) = array_buffer_view_to_vec::<u8>(data) {
if (offset as usize) + data_vec.len() > bound_buffer.capacity() {
return self.webgl_error(InvalidValue);
}
self.ipc_renderer
.send(CanvasMsg::WebGL(CanvasWebGLMsg::BufferSubData(target, offset as isize, data_vec)))
.unwrap()
} else {
self.webgl_error(InvalidValue);
}
}
@ -958,7 +948,7 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
None => return,
};
if let Some(data_vec) = self.array_buffer_view_to_vec::<f32>(data) {
if let Some(data_vec) = array_buffer_view_to_vec::<f32>(data) {
if data_vec.len() < 4 {
return self.webgl_error(InvalidOperation);
}
@ -966,6 +956,8 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
self.ipc_renderer
.send(CanvasMsg::WebGL(CanvasWebGLMsg::Uniform4fv(uniform_id, data_vec)))
.unwrap()
} else {
self.webgl_error(InvalidValue);
}
}
@ -984,11 +976,13 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
#[allow(unsafe_code)]
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
fn VertexAttrib1fv(&self, _cx: *mut JSContext, indx: u32, data: *mut JSObject) {
if let Some(data_vec) = self.array_buffer_view_to_vec::<f32>(data) {
if let Some(data_vec) = array_buffer_view_to_vec::<f32>(data) {
if data_vec.len() < 4 {
return self.webgl_error(InvalidOperation);
}
self.vertex_attrib(indx, data_vec[0], 0f32, 0f32, 1f32)
} else {
self.webgl_error(InvalidValue);
}
}
@ -1000,11 +994,13 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
#[allow(unsafe_code)]
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
fn VertexAttrib2fv(&self, _cx: *mut JSContext, indx: u32, data: *mut JSObject) {
if let Some(data_vec) = self.array_buffer_view_to_vec::<f32>(data) {
if let Some(data_vec) = array_buffer_view_to_vec::<f32>(data) {
if data_vec.len() < 2 {
return self.webgl_error(InvalidOperation);
}
self.vertex_attrib(indx, data_vec[0], data_vec[1], 0f32, 1f32)
} else {
self.webgl_error(InvalidValue);
}
}
@ -1016,11 +1012,13 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
#[allow(unsafe_code)]
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
fn VertexAttrib3fv(&self, _cx: *mut JSContext, indx: u32, data: *mut JSObject) {
if let Some(data_vec) = self.array_buffer_view_to_vec::<f32>(data) {
if let Some(data_vec) = array_buffer_view_to_vec::<f32>(data) {
if data_vec.len() < 3 {
return self.webgl_error(InvalidOperation);
}
self.vertex_attrib(indx, data_vec[0], data_vec[1], data_vec[2], 1f32)
} else {
self.webgl_error(InvalidValue);
}
}
@ -1032,11 +1030,13 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
#[allow(unsafe_code)]
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
fn VertexAttrib4fv(&self, _cx: *mut JSContext, indx: u32, data: *mut JSObject) {
if let Some(data_vec) = self.array_buffer_view_to_vec::<f32>(data) {
if let Some(data_vec) = array_buffer_view_to_vec::<f32>(data) {
if data_vec.len() < 4 {
return self.webgl_error(InvalidOperation);
}
self.vertex_attrib(indx, data_vec[0], data_vec[1], data_vec[2], data_vec[3])
} else {
self.webgl_error(InvalidValue);
}
}