mirror of
https://github.com/servo/servo.git
synced 2025-08-06 06:00:15 +01:00
webgl: Implement multiple calls and improve error detection
This commit implements WebGL's: * cullFace * frontFace * enable * disable * depthMask * colorMask * clearDepth * clearStencil * depthFunc * depthRange * hint * lineWidth * pixelStorei * polygonOffset * texParameteri * texParameterf * texImage2D (partially) It inlines a lot of OpenGL calls to keep the file `components/canvas/webgl_paint_task.rs` as small as possible while keeping readability. It also improves error detection on previous calls, and sets node damage on the canvas in the drawing calls. It adds a `TexImage2D` reftest, even though it's not enabled because: * WebGL paints the image when it loads (asynchronously), so the reftest doesn't wait for it and it finishes early * If we change the source for the base64 src of the image it works as expected in non-headless mode, but the test harness locks
This commit is contained in:
ecoal95
parent
af3310f149
commit
6341c77700
12 changed files with 763 additions and 226 deletions
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@ -17,11 +17,16 @@ use dom::bindings::num::Finite;
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use dom::bindings::utils::{Reflector, reflect_dom_object};
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use dom::canvasgradient::{CanvasGradient, CanvasGradientStyle, ToFillOrStrokeStyle};
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use dom::canvaspattern::CanvasPattern;
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use dom::htmlcanvaselement::utils as canvas_utils;
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use dom::htmlcanvaselement::{HTMLCanvasElement, HTMLCanvasElementHelpers};
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use dom::htmlimageelement::{HTMLImageElement, HTMLImageElementHelpers};
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use dom::imagedata::{ImageData, ImageDataHelpers};
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use dom::node::{window_from_node, NodeHelpers, NodeDamage};
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use msg::constellation_msg::Msg as ConstellationMsg;
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use net_traits::image::base::PixelFormat;
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use net_traits::image_cache_task::ImageResponse;
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use cssparser::Color as CSSColor;
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use cssparser::{Parser, RGBA};
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use euclid::matrix2d::Matrix2D;
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@ -34,10 +39,6 @@ use canvas_traits::{CanvasMsg, Canvas2dMsg, CanvasCommonMsg};
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use canvas_traits::{FillOrStrokeStyle, LinearGradientStyle, RadialGradientStyle, RepetitionStyle};
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use canvas_traits::{LineCapStyle, LineJoinStyle, CompositionOrBlending};
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use msg::constellation_msg::Msg as ConstellationMsg;
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use net_traits::image::base::PixelFormat;
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use net_traits::image_cache_task::{ImageCacheChan, ImageResponse};
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use ipc_channel::ipc::{self, IpcSender};
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use num::{Float, ToPrimitive};
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use std::borrow::ToOwned;
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@ -201,7 +202,7 @@ impl CanvasRenderingContext2D {
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Size2D::new(source_rect_clipped.size.width,
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source_rect_clipped.size.height));
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return (source_rect, dest_rect)
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(source_rect, dest_rect)
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}
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//
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@ -364,9 +365,10 @@ impl CanvasRenderingContext2D {
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PixelFormat::KA8 => panic!("KA8 color type not supported"),
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};
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return Some((image_data, image_size));
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Some((image_data, image_size))
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}
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// TODO(ecoal95): Move this to `HTMLCanvasElement`, and support WebGL contexts
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fn fetch_canvas_data(&self,
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canvas_element: &HTMLCanvasElement,
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source_rect: Rect<f64>)
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@ -385,18 +387,14 @@ impl CanvasRenderingContext2D {
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renderer.send(CanvasMsg::Canvas2d(Canvas2dMsg::GetImageData(source_rect.to_i32(),
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image_size, sender))).unwrap();
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return Some((receiver.recv().unwrap(), image_size));
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Some((receiver.recv().unwrap(), image_size))
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}
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#[inline]
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fn request_image_from_cache(&self, url: Url) -> ImageResponse {
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let canvas = self.canvas.root();
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let window = window_from_node(canvas.r());
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let window = window.r();
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let image_cache = window.image_cache_task();
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let (response_chan, response_port) = ipc::channel().unwrap();
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image_cache.request_image(url, ImageCacheChan(response_chan), None);
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let result = response_port.recv().unwrap();
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result.image_response
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canvas_utils::request_image_from_cache(window.r(), url)
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}
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fn create_drawable_rect(&self, x: f64, y: f64, w: f64, h: f64) -> Option<Rect<f32>> {
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@ -159,6 +159,7 @@ pub trait HTMLCanvasElementHelpers {
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fn get_or_init_webgl_context(self,
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cx: *mut JSContext,
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attrs: Option<HandleValue>) -> Option<Root<WebGLRenderingContext>>;
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fn is_valid(self) -> bool;
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}
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@ -325,3 +326,18 @@ impl<'a> From<&'a WebGLContextAttributes> for GLContextAttributes {
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}
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}
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pub mod utils {
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use dom::window::Window;
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use ipc_channel::ipc;
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use net_traits::image_cache_task::{ImageCacheChan, ImageResponse};
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use url::Url;
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pub fn request_image_from_cache(window: &Window, url: Url) -> ImageResponse {
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let image_cache = window.image_cache_task();
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let (response_chan, response_port) = ipc::channel().unwrap();
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image_cache.request_image(url, ImageCacheChan(response_chan), None);
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let result = response_port.recv().unwrap();
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result.image_response
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}
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}
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@ -9,7 +9,7 @@ use dom::bindings::js::Root;
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use dom::bindings::utils::reflect_dom_object;
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use dom::webglobject::WebGLObject;
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use canvas_traits::{CanvasMsg, CanvasWebGLMsg};
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use canvas_traits::{CanvasMsg, CanvasWebGLMsg, WebGLError, WebGLResult};
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use ipc_channel::ipc::{self, IpcSender};
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use std::cell::Cell;
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@ -18,6 +18,8 @@ use std::cell::Cell;
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pub struct WebGLBuffer {
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webgl_object: WebGLObject,
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id: u32,
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/// The target to which this buffer was bound the first time
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target: Cell<Option<u32>>,
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is_deleted: Cell<bool>,
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#[ignore_heap_size_of = "Defined in ipc-channel"]
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renderer: IpcSender<CanvasMsg>,
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@ -28,6 +30,7 @@ impl WebGLBuffer {
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WebGLBuffer {
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webgl_object: WebGLObject::new_inherited(),
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id: id,
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target: Cell::new(None),
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is_deleted: Cell::new(false),
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renderer: renderer,
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}
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@ -49,7 +52,7 @@ impl WebGLBuffer {
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pub trait WebGLBufferHelpers {
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fn id(self) -> u32;
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fn bind(self, target: u32);
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fn bind(self, target: u32) -> WebGLResult<()>;
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fn delete(self);
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}
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@ -58,8 +61,18 @@ impl<'a> WebGLBufferHelpers for &'a WebGLBuffer {
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self.id
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}
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fn bind(self, target: u32) {
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// NB: Only valid buffer targets come here
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fn bind(self, target: u32) -> WebGLResult<()> {
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if let Some(previous_target) = self.target.get() {
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if target != previous_target {
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return Err(WebGLError::InvalidOperation);
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}
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} else {
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self.target.set(Some(target));
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}
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self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::BindBuffer(target, self.id))).unwrap();
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Ok(())
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}
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fn delete(self) {
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@ -5,35 +5,48 @@
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use canvas_traits::
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{CanvasMsg, CanvasWebGLMsg, CanvasCommonMsg, WebGLError,
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WebGLShaderParameter, WebGLFramebufferBindingRequest};
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use canvas_traits::WebGLError::*;
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use dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::
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{self, WebGLContextAttributes, WebGLRenderingContextMethods};
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use dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContextConstants as constants;
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use dom::bindings::codegen::InheritTypes::NodeCast;
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use dom::bindings::codegen::UnionTypes::ImageDataOrHTMLImageElementOrHTMLCanvasElementOrHTMLVideoElement;
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use dom::bindings::conversions::ToJSValConvertible;
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use dom::bindings::global::{GlobalRef, GlobalField};
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use dom::bindings::js::{JS, LayoutJS, Root};
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use dom::bindings::utils::{Reflector, reflect_dom_object};
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use dom::htmlcanvaselement::{HTMLCanvasElement};
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use dom::htmlcanvaselement::HTMLCanvasElement;
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use dom::htmlcanvaselement::utils as canvas_utils;
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use dom::htmlimageelement::HTMLImageElementHelpers;
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use dom::imagedata::ImageDataHelpers;
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use dom::node::{window_from_node, NodeHelpers, NodeDamage};
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use dom::webglbuffer::{WebGLBuffer, WebGLBufferHelpers};
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use dom::webglframebuffer::{WebGLFramebuffer, WebGLFramebufferHelpers};
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use dom::webglprogram::{WebGLProgram, WebGLProgramHelpers};
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use dom::webglrenderbuffer::{WebGLRenderbuffer, WebGLRenderbufferHelpers};
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use dom::webglshader::{WebGLShader, WebGLShaderHelpers};
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use dom::webgltexture::{WebGLTexture, WebGLTextureHelpers};
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use dom::webgltexture::{TexParameterValue, WebGLTexture, WebGLTextureHelpers};
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use dom::webgluniformlocation::{WebGLUniformLocation, WebGLUniformLocationHelpers};
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use euclid::size::Size2D;
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use ipc_channel::ipc::{self, IpcSender};
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use js::jsapi::{JSContext, JSObject, RootedValue};
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use js::jsapi::{JS_GetFloat32ArrayData, JS_GetObjectAsArrayBufferView};
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use js::jsval::{JSVal, UndefinedValue, NullValue, Int32Value, BooleanValue};
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use msg::constellation_msg::Msg as ConstellationMsg;
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use offscreen_gl_context::GLContextAttributes;
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use net_traits::image::base::PixelFormat;
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use net_traits::image_cache_task::ImageResponse;
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use std::cell::Cell;
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use std::mem;
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use std::ptr;
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use std::slice;
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use std::sync::mpsc::channel;
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use util::str::DOMString;
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use util::vec::byte_swap;
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use offscreen_gl_context::GLContextAttributes;
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pub const MAX_UNIFORM_AND_ATTRIBUTE_LEN: usize = 256;
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@ -42,13 +55,23 @@ macro_rules! handle_potential_webgl_error {
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match $call {
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Ok(ret) => ret,
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Err(error) => {
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$context.handle_webgl_error(error);
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$context.webgl_error(error);
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$return_on_error
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}
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}
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}
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}
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/// Set of bitflags for texture unpacking (texImage2d, etc...)
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bitflags! {
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#[derive(HeapSizeOf, JSTraceable)]
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flags TextureUnpacking: u8 {
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const FLIP_Y_AXIS = 0x01,
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const PREMULTIPLY_ALPHA = 0x02,
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const CONVERT_COLORSPACE = 0x04,
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}
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}
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#[dom_struct]
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#[derive(HeapSizeOf)]
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pub struct WebGLRenderingContext {
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@ -59,6 +82,9 @@ pub struct WebGLRenderingContext {
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ipc_renderer: IpcSender<CanvasMsg>,
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canvas: JS<HTMLCanvasElement>,
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last_error: Cell<Option<WebGLError>>,
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texture_unpacking_settings: Cell<TextureUnpacking>,
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bound_texture_2d: Cell<Option<JS<WebGLTexture>>>,
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bound_texture_cube_map: Cell<Option<JS<WebGLTexture>>>,
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}
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impl WebGLRenderingContext {
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@ -80,8 +106,11 @@ impl WebGLRenderingContext {
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global: GlobalField::from_rooted(&global),
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renderer_id: renderer_id,
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ipc_renderer: ipc_renderer,
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last_error: Cell::new(None),
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canvas: JS::from_ref(canvas),
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last_error: Cell::new(None),
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texture_unpacking_settings: Cell::new(CONVERT_COLORSPACE),
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bound_texture_2d: Cell::new(None),
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bound_texture_cube_map: Cell::new(None),
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}
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})
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}
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@ -101,6 +130,12 @@ impl WebGLRenderingContext {
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pub fn recreate(&self, size: Size2D<i32>) {
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self.ipc_renderer.send(CanvasMsg::Common(CanvasCommonMsg::Recreate(size))).unwrap();
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}
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fn mark_as_dirty(&self) {
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let canvas = self.canvas.root();
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let node = NodeCast::from_ref(canvas.r());
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node.dirty(NodeDamage::OtherNodeDamage);
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}
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}
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impl Drop for WebGLRenderingContext {
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@ -241,8 +276,15 @@ impl<'a> WebGLRenderingContextMethods for &'a WebGLRenderingContext {
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// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.5
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fn BindBuffer(self, target: u32, buffer: Option<&WebGLBuffer>) {
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match target {
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constants::ARRAY_BUFFER |
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constants::ELEMENT_ARRAY_BUFFER => (),
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_ => return self.webgl_error(InvalidEnum),
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}
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if let Some(buffer) = buffer {
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buffer.bind(target)
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handle_potential_webgl_error!(self, buffer.bind(target), ())
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} else {
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// Unbind the current buffer
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self.ipc_renderer
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@ -253,6 +295,10 @@ impl<'a> WebGLRenderingContextMethods for &'a WebGLRenderingContext {
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// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.6
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fn BindFramebuffer(self, target: u32, framebuffer: Option<&WebGLFramebuffer>) {
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if target != constants::FRAMEBUFFER {
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return self.webgl_error(InvalidOperation);
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}
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if let Some(framebuffer) = framebuffer {
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framebuffer.bind(target)
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} else {
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@ -264,6 +310,10 @@ impl<'a> WebGLRenderingContextMethods for &'a WebGLRenderingContext {
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// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.7
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fn BindRenderbuffer(self, target: u32, renderbuffer: Option<&WebGLRenderbuffer>) {
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if target != constants::RENDERBUFFER {
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return self.webgl_error(InvalidEnum);
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}
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if let Some(renderbuffer) = renderbuffer {
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renderbuffer.bind(target)
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} else {
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@ -276,8 +326,23 @@ impl<'a> WebGLRenderingContextMethods for &'a WebGLRenderingContext {
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// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.8
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fn BindTexture(self, target: u32, texture: Option<&WebGLTexture>) {
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let slot = match target {
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constants::TEXTURE_2D => &self.bound_texture_2d,
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constants::TEXTURE_CUBE_MAP => &self.bound_texture_cube_map,
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_ => return self.webgl_error(InvalidEnum),
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};
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if let Some(texture) = texture {
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texture.bind(target)
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match texture.bind(target) {
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Ok(_) => slot.set(Some(JS::from_ref(texture))),
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Err(err) => return self.webgl_error(err),
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}
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} else {
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// Unbind the currently bound texture
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self.ipc_renderer
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.send(CanvasMsg::WebGL(CanvasWebGLMsg::BindTexture(target, 0)))
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.unwrap()
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}
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}
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@ -306,7 +371,8 @@ impl<'a> WebGLRenderingContextMethods for &'a WebGLRenderingContext {
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// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.11
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fn Clear(self, mask: u32) {
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self.ipc_renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::Clear(mask))).unwrap()
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self.ipc_renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::Clear(mask))).unwrap();
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self.mark_as_dirty();
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}
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// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
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@ -316,6 +382,102 @@ impl<'a> WebGLRenderingContextMethods for &'a WebGLRenderingContext {
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.unwrap()
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}
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// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
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fn ClearDepth(self, depth: f32) {
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self.ipc_renderer
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.send(CanvasMsg::WebGL(CanvasWebGLMsg::ClearDepth(depth as f64)))
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.unwrap()
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}
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// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
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fn ClearStencil(self, stencil: i32) {
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self.ipc_renderer
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.send(CanvasMsg::WebGL(CanvasWebGLMsg::ClearStencil(stencil)))
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.unwrap()
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}
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// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
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fn ColorMask(self, r: bool, g: bool, b: bool, a: bool) {
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self.ipc_renderer
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.send(CanvasMsg::WebGL(CanvasWebGLMsg::ColorMask(r, g, b, a)))
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.unwrap()
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}
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// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
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fn CullFace(self, mode: u32) {
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match mode {
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constants::FRONT | constants::BACK | constants::FRONT_AND_BACK =>
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self.ipc_renderer
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.send(CanvasMsg::WebGL(CanvasWebGLMsg::CullFace(mode)))
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.unwrap(),
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_ => self.webgl_error(InvalidEnum),
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}
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}
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// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
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fn FrontFace(self, mode: u32) {
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match mode {
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constants::CW | constants::CCW =>
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self.ipc_renderer
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.send(CanvasMsg::WebGL(CanvasWebGLMsg::FrontFace(mode)))
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.unwrap(),
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_ => self.webgl_error(InvalidEnum),
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}
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}
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// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
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fn DepthFunc(self, func: u32) {
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match func {
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constants::NEVER | constants::LESS |
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constants::EQUAL | constants::LEQUAL |
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constants::GREATER | constants::NOTEQUAL |
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constants::GEQUAL | constants::ALWAYS =>
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self.ipc_renderer
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.send(CanvasMsg::WebGL(CanvasWebGLMsg::DepthFunc(func)))
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.unwrap(),
|
||||
_ => self.webgl_error(InvalidEnum),
|
||||
}
|
||||
}
|
||||
|
||||
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
|
||||
fn DepthMask(self, flag: bool) {
|
||||
self.ipc_renderer
|
||||
.send(CanvasMsg::WebGL(CanvasWebGLMsg::DepthMask(flag)))
|
||||
.unwrap()
|
||||
}
|
||||
|
||||
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
|
||||
fn DepthRange(self, near: f32, far: f32) {
|
||||
self.ipc_renderer
|
||||
.send(CanvasMsg::WebGL(CanvasWebGLMsg::DepthRange(near as f64, far as f64)))
|
||||
.unwrap()
|
||||
}
|
||||
|
||||
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
|
||||
fn Enable(self, cap: u32) {
|
||||
match cap {
|
||||
constants::BLEND | constants::CULL_FACE | constants::DEPTH_TEST | constants::DITHER |
|
||||
constants::POLYGON_OFFSET_FILL | constants::SAMPLE_ALPHA_TO_COVERAGE | constants::SAMPLE_COVERAGE |
|
||||
constants::SAMPLE_COVERAGE_INVERT | constants::SCISSOR_TEST =>
|
||||
self.ipc_renderer
|
||||
.send(CanvasMsg::WebGL(CanvasWebGLMsg::Enable(cap)))
|
||||
.unwrap(),
|
||||
_ => self.webgl_error(InvalidEnum),
|
||||
}
|
||||
}
|
||||
|
||||
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
|
||||
fn Disable(self, cap: u32) {
|
||||
match cap {
|
||||
constants::BLEND | constants::CULL_FACE | constants::DEPTH_TEST | constants::DITHER |
|
||||
constants::POLYGON_OFFSET_FILL | constants::SAMPLE_ALPHA_TO_COVERAGE | constants::SAMPLE_COVERAGE |
|
||||
constants::SAMPLE_COVERAGE_INVERT | constants::SCISSOR_TEST =>
|
||||
self.ipc_renderer
|
||||
.send(CanvasMsg::WebGL(CanvasWebGLMsg::Disable(cap)))
|
||||
.unwrap(),
|
||||
_ => self.webgl_error(InvalidEnum),
|
||||
}
|
||||
}
|
||||
|
||||
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.9
|
||||
fn CompileShader(self, shader: Option<&WebGLShader>) {
|
||||
if let Some(shader) = shader {
|
||||
|
|
@ -401,9 +563,24 @@ impl<'a> WebGLRenderingContextMethods for &'a WebGLRenderingContext {
|
|||
|
||||
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.11
|
||||
fn DrawArrays(self, mode: u32, first: i32, count: i32) {
|
||||
self.ipc_renderer
|
||||
.send(CanvasMsg::WebGL(CanvasWebGLMsg::DrawArrays(mode, first, count)))
|
||||
.unwrap()
|
||||
match mode {
|
||||
constants::POINTS | constants::LINE_STRIP |
|
||||
constants::LINE_LOOP | constants::LINES |
|
||||
constants::TRIANGLE_STRIP | constants::TRIANGLE_FAN |
|
||||
constants::TRIANGLES => {
|
||||
// TODO(ecoal95): Check the CURRENT_PROGRAM when we keep track of it, and if it's
|
||||
// null generate an InvalidOperation error
|
||||
if first < 0 || count < 0 {
|
||||
self.webgl_error(InvalidValue);
|
||||
} else {
|
||||
self.ipc_renderer
|
||||
.send(CanvasMsg::WebGL(CanvasWebGLMsg::DrawArrays(mode, first, count)))
|
||||
.unwrap();
|
||||
self.mark_as_dirty();
|
||||
}
|
||||
},
|
||||
_ => self.webgl_error(InvalidEnum),
|
||||
}
|
||||
}
|
||||
|
||||
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.10
|
||||
|
|
@ -456,6 +633,96 @@ impl<'a> WebGLRenderingContextMethods for &'a WebGLRenderingContext {
|
|||
}
|
||||
}
|
||||
|
||||
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
|
||||
fn Hint(self, target: u32, mode: u32) {
|
||||
if target != constants::GENERATE_MIPMAP_HINT {
|
||||
return self.webgl_error(InvalidEnum);
|
||||
}
|
||||
|
||||
match mode {
|
||||
constants::FASTEST |
|
||||
constants::NICEST |
|
||||
constants::DONT_CARE => (),
|
||||
|
||||
_ => return self.webgl_error(InvalidEnum),
|
||||
}
|
||||
|
||||
self.ipc_renderer
|
||||
.send(CanvasMsg::WebGL(CanvasWebGLMsg::Hint(target, mode)))
|
||||
.unwrap()
|
||||
}
|
||||
|
||||
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
|
||||
fn LineWidth(self, width: f32) {
|
||||
if width.is_nan() || width <= 0f32 {
|
||||
return self.webgl_error(InvalidValue);
|
||||
}
|
||||
|
||||
self.ipc_renderer
|
||||
.send(CanvasMsg::WebGL(CanvasWebGLMsg::LineWidth(width)))
|
||||
.unwrap()
|
||||
}
|
||||
|
||||
// NOTE: Usage of this function could affect rendering while we keep using
|
||||
// readback to render to the page.
|
||||
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
|
||||
fn PixelStorei(self, param_name: u32, param_value: i32) {
|
||||
let mut texture_settings = self.texture_unpacking_settings.get();
|
||||
match param_name {
|
||||
constants::UNPACK_FLIP_Y_WEBGL => {
|
||||
if param_value != 0 {
|
||||
texture_settings.insert(FLIP_Y_AXIS)
|
||||
} else {
|
||||
texture_settings.remove(FLIP_Y_AXIS)
|
||||
}
|
||||
|
||||
self.texture_unpacking_settings.set(texture_settings);
|
||||
return;
|
||||
},
|
||||
constants::UNPACK_PREMULTIPLY_ALPHA_WEBGL => {
|
||||
if param_value != 0 {
|
||||
texture_settings.insert(PREMULTIPLY_ALPHA)
|
||||
} else {
|
||||
texture_settings.remove(PREMULTIPLY_ALPHA)
|
||||
}
|
||||
|
||||
self.texture_unpacking_settings.set(texture_settings);
|
||||
return;
|
||||
},
|
||||
constants::UNPACK_COLORSPACE_CONVERSION_WEBGL => {
|
||||
match param_value as u32 {
|
||||
constants::BROWSER_DEFAULT_WEBGL
|
||||
=> texture_settings.insert(CONVERT_COLORSPACE),
|
||||
constants::NONE
|
||||
=> texture_settings.remove(CONVERT_COLORSPACE),
|
||||
_ => return self.webgl_error(InvalidEnum),
|
||||
}
|
||||
|
||||
self.texture_unpacking_settings.set(texture_settings);
|
||||
return;
|
||||
},
|
||||
constants::UNPACK_ALIGNMENT |
|
||||
constants::PACK_ALIGNMENT => {
|
||||
match param_value {
|
||||
1 | 2 | 4 | 8 => (),
|
||||
_ => return self.webgl_error(InvalidValue),
|
||||
}
|
||||
},
|
||||
_ => return self.webgl_error(InvalidEnum),
|
||||
}
|
||||
|
||||
self.ipc_renderer
|
||||
.send(CanvasMsg::WebGL(CanvasWebGLMsg::PixelStorei(param_name, param_value)))
|
||||
.unwrap()
|
||||
}
|
||||
|
||||
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.3
|
||||
fn PolygonOffset(self, factor: f32, units: f32) {
|
||||
self.ipc_renderer
|
||||
.send(CanvasMsg::WebGL(CanvasWebGLMsg::PolygonOffset(factor, units)))
|
||||
.unwrap()
|
||||
}
|
||||
|
||||
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.9
|
||||
fn LinkProgram(self, program: Option<&WebGLProgram>) {
|
||||
if let Some(program) = program {
|
||||
|
|
@ -516,7 +783,7 @@ impl<'a> WebGLRenderingContextMethods for &'a WebGLRenderingContext {
|
|||
normalized: bool, stride: i32, offset: i64) {
|
||||
if let constants::FLOAT = data_type {
|
||||
let msg = CanvasMsg::WebGL(
|
||||
CanvasWebGLMsg::VertexAttribPointer2f(attrib_id, size, normalized, stride, offset));
|
||||
CanvasWebGLMsg::VertexAttribPointer2f(attrib_id, size, normalized, stride, offset as u32));
|
||||
self.ipc_renderer.send(msg).unwrap()
|
||||
} else {
|
||||
panic!("VertexAttribPointer: Data Type not supported")
|
||||
|
|
@ -529,20 +796,137 @@ impl<'a> WebGLRenderingContextMethods for &'a WebGLRenderingContext {
|
|||
.send(CanvasMsg::WebGL(CanvasWebGLMsg::Viewport(x, y, width, height)))
|
||||
.unwrap()
|
||||
}
|
||||
|
||||
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.8
|
||||
fn TexImage2D(self,
|
||||
target: u32,
|
||||
level: i32,
|
||||
internal_format: u32,
|
||||
format: u32,
|
||||
data_type: u32,
|
||||
source: Option<ImageDataOrHTMLImageElementOrHTMLCanvasElementOrHTMLVideoElement >) {
|
||||
// TODO(ecoal95): Check for bound WebGLTexture, and validate more parameters
|
||||
match target {
|
||||
constants::TEXTURE_2D |
|
||||
constants::TEXTURE_CUBE_MAP => (),
|
||||
|
||||
_ => return self.webgl_error(InvalidEnum),
|
||||
}
|
||||
|
||||
let source = match source {
|
||||
Some(s) => s,
|
||||
None => return,
|
||||
};
|
||||
|
||||
let (pixels, size) = match source {
|
||||
ImageDataOrHTMLImageElementOrHTMLCanvasElementOrHTMLVideoElement::eImageData(image_data) => {
|
||||
let global = self.global.root();
|
||||
(image_data.get_data_array(&global.r()), image_data.get_size())
|
||||
},
|
||||
ImageDataOrHTMLImageElementOrHTMLCanvasElementOrHTMLVideoElement::eHTMLImageElement(image) => {
|
||||
let img_url = match image.r().get_url() {
|
||||
Some(url) => url,
|
||||
None => return,
|
||||
};
|
||||
|
||||
let canvas = self.canvas.root();
|
||||
let window = window_from_node(canvas.r());
|
||||
|
||||
let img = match canvas_utils::request_image_from_cache(window.r(), img_url) {
|
||||
ImageResponse::Loaded(img) => img,
|
||||
ImageResponse::PlaceholderLoaded(_) | ImageResponse::None
|
||||
=> return,
|
||||
};
|
||||
|
||||
let size = Size2D::new(img.width as i32, img.height as i32);
|
||||
// TODO(ecoal95): Validate that the format argument is coherent with the image.
|
||||
// RGB8 should be easy to support too
|
||||
let mut data = match img.format {
|
||||
PixelFormat::RGBA8 => img.bytes.to_vec(),
|
||||
_ => unimplemented!(),
|
||||
};
|
||||
|
||||
byte_swap(&mut data);
|
||||
|
||||
(data, size)
|
||||
},
|
||||
// TODO(ecoal95): Getting canvas data is implemented in CanvasRenderingContext2D, but
|
||||
// we need to refactor it moving it to `HTMLCanvasElement` and supporting WebGLContext
|
||||
ImageDataOrHTMLImageElementOrHTMLCanvasElementOrHTMLVideoElement::eHTMLCanvasElement(_rooted_canvas)
|
||||
=> unimplemented!(),
|
||||
ImageDataOrHTMLImageElementOrHTMLCanvasElementOrHTMLVideoElement::eHTMLVideoElement(_rooted_video)
|
||||
=> unimplemented!(),
|
||||
};
|
||||
|
||||
// TODO(ecoal95): Invert axis, convert colorspace, premultiply alpha if requested
|
||||
let msg = CanvasWebGLMsg::TexImage2D(target, level, internal_format as i32,
|
||||
size.width, size.height,
|
||||
format, data_type, pixels);
|
||||
|
||||
self.ipc_renderer
|
||||
.send(CanvasMsg::WebGL(msg))
|
||||
.unwrap()
|
||||
}
|
||||
|
||||
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.8
|
||||
fn TexParameterf(self, target: u32, name: u32, value: f32) {
|
||||
match target {
|
||||
constants::TEXTURE_2D |
|
||||
constants::TEXTURE_CUBE_MAP => {
|
||||
if let Some(texture) = self.bound_texture_for(target) {
|
||||
let texture = texture.root();
|
||||
let result = texture.r().tex_parameter(target, name, TexParameterValue::Float(value));
|
||||
handle_potential_webgl_error!(self, result, ());
|
||||
} else {
|
||||
return self.webgl_error(InvalidOperation);
|
||||
}
|
||||
},
|
||||
|
||||
_ => return self.webgl_error(InvalidEnum),
|
||||
}
|
||||
}
|
||||
|
||||
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.8
|
||||
fn TexParameteri(self, target: u32, name: u32, value: i32) {
|
||||
match target {
|
||||
constants::TEXTURE_2D |
|
||||
constants::TEXTURE_CUBE_MAP => {
|
||||
if let Some(texture) = self.bound_texture_for(target) {
|
||||
let texture = texture.root();
|
||||
let result = texture.r().tex_parameter(target, name, TexParameterValue::Int(value));
|
||||
handle_potential_webgl_error!(self, result, ());
|
||||
} else {
|
||||
return self.webgl_error(InvalidOperation);
|
||||
}
|
||||
},
|
||||
|
||||
_ => return self.webgl_error(InvalidEnum),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub trait WebGLRenderingContextHelpers {
|
||||
fn handle_webgl_error(&self, err: WebGLError);
|
||||
fn webgl_error(&self, err: WebGLError);
|
||||
fn bound_texture_for(&self, target: u32) -> Option<JS<WebGLTexture>>;
|
||||
}
|
||||
|
||||
impl<'a> WebGLRenderingContextHelpers for &'a WebGLRenderingContext {
|
||||
fn handle_webgl_error(&self, err: WebGLError) {
|
||||
fn webgl_error(&self, err: WebGLError) {
|
||||
// If an error has been detected no further errors must be
|
||||
// recorded until `getError` has been called
|
||||
if self.last_error.get().is_none() {
|
||||
self.last_error.set(Some(err));
|
||||
}
|
||||
}
|
||||
|
||||
fn bound_texture_for(&self, target: u32) -> Option<JS<WebGLTexture>> {
|
||||
match target {
|
||||
constants::TEXTURE_2D => self.bound_texture_2d.get(),
|
||||
constants::TEXTURE_CUBE_MAP => self.bound_texture_cube_map.get(),
|
||||
|
||||
_ => unreachable!(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub trait LayoutCanvasWebGLRenderingContextHelpers {
|
||||
|
|
|
|||
|
|
@ -3,21 +3,29 @@
|
|||
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
||||
|
||||
// https://www.khronos.org/registry/webgl/specs/latest/1.0/webgl.idl
|
||||
use dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContextConstants as constants;
|
||||
use dom::bindings::codegen::Bindings::WebGLTextureBinding;
|
||||
use dom::bindings::global::GlobalRef;
|
||||
use dom::bindings::js::Root;
|
||||
use dom::bindings::utils::reflect_dom_object;
|
||||
use dom::webglobject::WebGLObject;
|
||||
|
||||
use canvas_traits::{CanvasMsg, CanvasWebGLMsg};
|
||||
use canvas_traits::{CanvasMsg, CanvasWebGLMsg, WebGLError, WebGLResult};
|
||||
use ipc_channel::ipc::{self, IpcSender};
|
||||
use std::cell::Cell;
|
||||
|
||||
pub enum TexParameterValue {
|
||||
Float(f32),
|
||||
Int(i32),
|
||||
}
|
||||
|
||||
#[dom_struct]
|
||||
#[derive(HeapSizeOf)]
|
||||
pub struct WebGLTexture {
|
||||
webgl_object: WebGLObject,
|
||||
id: u32,
|
||||
/// The target to which this texture was bound the first time
|
||||
target: Cell<Option<u32>>,
|
||||
is_deleted: Cell<bool>,
|
||||
#[ignore_heap_size_of = "Defined in ipc-channel"]
|
||||
renderer: IpcSender<CanvasMsg>,
|
||||
|
|
@ -28,6 +36,7 @@ impl WebGLTexture {
|
|||
WebGLTexture {
|
||||
webgl_object: WebGLObject::new_inherited(),
|
||||
id: id,
|
||||
target: Cell::new(None),
|
||||
is_deleted: Cell::new(false),
|
||||
renderer: renderer,
|
||||
}
|
||||
|
|
@ -49,8 +58,12 @@ impl WebGLTexture {
|
|||
|
||||
pub trait WebGLTextureHelpers {
|
||||
fn id(self) -> u32;
|
||||
fn bind(self, target: u32);
|
||||
fn bind(self, target: u32) -> WebGLResult<()>;
|
||||
fn delete(self);
|
||||
fn tex_parameter(self,
|
||||
target: u32,
|
||||
name: u32,
|
||||
value: TexParameterValue) -> WebGLResult<()>;
|
||||
}
|
||||
|
||||
impl<'a> WebGLTextureHelpers for &'a WebGLTexture {
|
||||
|
|
@ -58,8 +71,19 @@ impl<'a> WebGLTextureHelpers for &'a WebGLTexture {
|
|||
self.id
|
||||
}
|
||||
|
||||
fn bind(self, target: u32) {
|
||||
// NB: Only valid texture targets come here
|
||||
fn bind(self, target: u32) -> WebGLResult<()> {
|
||||
if let Some(previous_target) = self.target.get() {
|
||||
if target != previous_target {
|
||||
return Err(WebGLError::InvalidOperation);
|
||||
}
|
||||
} else {
|
||||
self.target.set(Some(target));
|
||||
}
|
||||
|
||||
self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::BindTexture(self.id, target))).unwrap();
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn delete(self) {
|
||||
|
|
@ -68,4 +92,67 @@ impl<'a> WebGLTextureHelpers for &'a WebGLTexture {
|
|||
self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::DeleteTexture(self.id))).unwrap();
|
||||
}
|
||||
}
|
||||
|
||||
/// We have to follow the conversion rules for GLES 2.0. See:
|
||||
/// https://www.khronos.org/webgl/public-mailing-list/archives/1008/msg00014.html
|
||||
///
|
||||
fn tex_parameter(self,
|
||||
target: u32,
|
||||
name: u32,
|
||||
value: TexParameterValue) -> WebGLResult<()> {
|
||||
let (int_value, _float_value) = match value {
|
||||
TexParameterValue::Int(int_value) => (int_value, int_value as f32),
|
||||
TexParameterValue::Float(float_value) => (float_value as i32, float_value),
|
||||
};
|
||||
|
||||
match name {
|
||||
constants::TEXTURE_MIN_FILTER => {
|
||||
match int_value as u32 {
|
||||
constants::NEAREST |
|
||||
constants::LINEAR |
|
||||
constants::NEAREST_MIPMAP_NEAREST |
|
||||
constants::LINEAR_MIPMAP_NEAREST |
|
||||
constants::NEAREST_MIPMAP_LINEAR |
|
||||
constants::LINEAR_MIPMAP_LINEAR => {
|
||||
self.renderer
|
||||
.send(CanvasMsg::WebGL(CanvasWebGLMsg::TexParameteri(target, name, int_value)))
|
||||
.unwrap();
|
||||
return Ok(());
|
||||
},
|
||||
|
||||
_ => return Err(WebGLError::InvalidEnum),
|
||||
}
|
||||
},
|
||||
constants::TEXTURE_MAG_FILTER => {
|
||||
match int_value as u32 {
|
||||
constants::NEAREST |
|
||||
constants::LINEAR => {
|
||||
self.renderer
|
||||
.send(CanvasMsg::WebGL(CanvasWebGLMsg::TexParameteri(target, name, int_value)))
|
||||
.unwrap();
|
||||
return Ok(());
|
||||
},
|
||||
|
||||
_ => return Err(WebGLError::InvalidEnum),
|
||||
}
|
||||
},
|
||||
constants::TEXTURE_WRAP_S |
|
||||
constants::TEXTURE_WRAP_T => {
|
||||
match int_value as u32 {
|
||||
constants::CLAMP_TO_EDGE |
|
||||
constants::MIRRORED_REPEAT |
|
||||
constants::REPEAT => {
|
||||
self.renderer
|
||||
.send(CanvasMsg::WebGL(CanvasWebGLMsg::TexParameteri(target, name, int_value)))
|
||||
.unwrap();
|
||||
return Ok(());
|
||||
},
|
||||
|
||||
_ => return Err(WebGLError::InvalidEnum),
|
||||
}
|
||||
},
|
||||
|
||||
_ => return Err(WebGLError::InvalidEnum),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -24,6 +24,11 @@ typedef unsigned long GLuint;
|
|||
typedef unrestricted float GLfloat;
|
||||
typedef unrestricted float GLclampf;
|
||||
|
||||
typedef (ImageData or
|
||||
HTMLImageElement or
|
||||
HTMLCanvasElement or
|
||||
HTMLVideoElement) TexImageSource;
|
||||
|
||||
|
||||
dictionary WebGLContextAttributes {
|
||||
GLboolean alpha = true;
|
||||
|
|
@ -495,9 +500,9 @@ interface WebGLRenderingContextBase
|
|||
//[WebGLHandlesContextLoss] GLenum checkFramebufferStatus(GLenum target);
|
||||
void clear(GLbitfield mask);
|
||||
void clearColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
|
||||
//void clearDepth(GLclampf depth);
|
||||
//void clearStencil(GLint s);
|
||||
//void colorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
|
||||
void clearDepth(GLclampf depth);
|
||||
void clearStencil(GLint s);
|
||||
void colorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
|
||||
void compileShader(WebGLShader? shader);
|
||||
|
||||
//void compressedTexImage2D(GLenum target, GLint level, GLenum internalformat,
|
||||
|
|
@ -521,7 +526,7 @@ interface WebGLRenderingContextBase
|
|||
WebGLShader? createShader(GLenum type);
|
||||
WebGLTexture? createTexture();
|
||||
|
||||
//void cullFace(GLenum mode);
|
||||
void cullFace(GLenum mode);
|
||||
|
||||
void deleteBuffer(WebGLBuffer? buffer);
|
||||
void deleteFramebuffer(WebGLFramebuffer? framebuffer);
|
||||
|
|
@ -530,16 +535,16 @@ interface WebGLRenderingContextBase
|
|||
void deleteShader(WebGLShader? shader);
|
||||
void deleteTexture(WebGLTexture? texture);
|
||||
|
||||
//void depthFunc(GLenum func);
|
||||
//void depthMask(GLboolean flag);
|
||||
//void depthRange(GLclampf zNear, GLclampf zFar);
|
||||
void depthFunc(GLenum func);
|
||||
void depthMask(GLboolean flag);
|
||||
void depthRange(GLclampf zNear, GLclampf zFar);
|
||||
//void detachShader(WebGLProgram? program, WebGLShader? shader);
|
||||
//void disable(GLenum cap);
|
||||
void disable(GLenum cap);
|
||||
//void disableVertexAttribArray(GLuint index);
|
||||
void drawArrays(GLenum mode, GLint first, GLsizei count);
|
||||
//void drawElements(GLenum mode, GLsizei count, GLenum type, GLintptr offset);
|
||||
|
||||
//void enable(GLenum cap);
|
||||
void enable(GLenum cap);
|
||||
void enableVertexAttribArray(GLuint index);
|
||||
//void finish();
|
||||
//void flush();
|
||||
|
|
@ -548,7 +553,7 @@ interface WebGLRenderingContextBase
|
|||
// WebGLRenderbuffer? renderbuffer);
|
||||
//void framebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget,
|
||||
// WebGLTexture? texture, GLint level);
|
||||
//void frontFace(GLenum mode);
|
||||
void frontFace(GLenum mode);
|
||||
|
||||
//void generateMipmap(GLenum target);
|
||||
|
||||
|
|
@ -584,7 +589,7 @@ interface WebGLRenderingContextBase
|
|||
|
||||
//[WebGLHandlesContextLoss] GLsizeiptr getVertexAttribOffset(GLuint index, GLenum pname);
|
||||
|
||||
//void hint(GLenum target, GLenum mode);
|
||||
void hint(GLenum target, GLenum mode);
|
||||
//[WebGLHandlesContextLoss] GLboolean isBuffer(WebGLBuffer? buffer);
|
||||
//[WebGLHandlesContextLoss] GLboolean isEnabled(GLenum cap);
|
||||
//[WebGLHandlesContextLoss] GLboolean isFramebuffer(WebGLFramebuffer? framebuffer);
|
||||
|
|
@ -592,10 +597,10 @@ interface WebGLRenderingContextBase
|
|||
//[WebGLHandlesContextLoss] GLboolean isRenderbuffer(WebGLRenderbuffer? renderbuffer);
|
||||
//[WebGLHandlesContextLoss] GLboolean isShader(WebGLShader? shader);
|
||||
//[WebGLHandlesContextLoss] GLboolean isTexture(WebGLTexture? texture);
|
||||
//void lineWidth(GLfloat width);
|
||||
void lineWidth(GLfloat width);
|
||||
void linkProgram(WebGLProgram? program);
|
||||
//void pixelStorei(GLenum pname, GLint param);
|
||||
//void polygonOffset(GLfloat factor, GLfloat units);
|
||||
void pixelStorei(GLenum pname, GLint param);
|
||||
void polygonOffset(GLfloat factor, GLfloat units);
|
||||
|
||||
//void readPixels(GLint x, GLint y, GLsizei width, GLsizei height,
|
||||
// GLenum format, GLenum type, ArrayBufferView? pixels);
|
||||
|
|
@ -614,18 +619,14 @@ interface WebGLRenderingContextBase
|
|||
//void stencilOp(GLenum fail, GLenum zfail, GLenum zpass);
|
||||
//void stencilOpSeparate(GLenum face, GLenum fail, GLenum zfail, GLenum zpass);
|
||||
|
||||
//typedef (ImageData or
|
||||
// HTMLImageElement or
|
||||
// HTMLCanvasElement or
|
||||
// HTMLVideoElement) TexImageSource;
|
||||
//void texImage2D(GLenum target, GLint level, GLenum internalformat,
|
||||
// GLsizei width, GLsizei height, GLint border, GLenum format,
|
||||
// GLenum type, ArrayBufferView? pixels);
|
||||
//void texImage2D(GLenum target, GLint level, GLenum internalformat,
|
||||
// GLenum format, GLenum type, TexImageSource? source); // May throw DOMException
|
||||
void texImage2D(GLenum target, GLint level, GLenum internalformat,
|
||||
GLenum format, GLenum type, TexImageSource? source); // May throw DOMException
|
||||
|
||||
//void texParameterf(GLenum target, GLenum pname, GLfloat param);
|
||||
//void texParameteri(GLenum target, GLenum pname, GLint param);
|
||||
void texParameterf(GLenum target, GLenum pname, GLfloat param);
|
||||
void texParameteri(GLenum target, GLenum pname, GLint param);
|
||||
|
||||
//void texSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset,
|
||||
// GLsizei width, GLsizei height,
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue