From 4f112b1705c27ec07911429b12016feb3d588987 Mon Sep 17 00:00:00 2001 From: Istvan Miklos Date: Thu, 26 Sep 2019 11:55:20 +0200 Subject: Add Support for WebGL Transormfeedback Reference: https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.15 --- components/script/dom/webgltransformfeedback.rs | 133 ++++++++++++++++++++++++ 1 file changed, 133 insertions(+) create mode 100644 components/script/dom/webgltransformfeedback.rs (limited to 'components/script/dom/webgltransformfeedback.rs') diff --git a/components/script/dom/webgltransformfeedback.rs b/components/script/dom/webgltransformfeedback.rs new file mode 100644 index 00000000000..a58a8e43577 --- /dev/null +++ b/components/script/dom/webgltransformfeedback.rs @@ -0,0 +1,133 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at https://mozilla.org/MPL/2.0/. */ + +use crate::dom::bindings::codegen::Bindings::WebGLTransformFeedbackBinding; +use crate::dom::bindings::inheritance::Castable; +use crate::dom::bindings::reflector::{reflect_dom_object, DomObject}; +use crate::dom::bindings::root::DomRoot; +use crate::dom::webglobject::WebGLObject; +use crate::dom::webglrenderingcontext::WebGLRenderingContext; +use canvas_traits::webgl::{webgl_channel, WebGLCommand}; +use dom_struct::dom_struct; +use std::cell::Cell; + +#[dom_struct] +pub struct WebGLTransformFeedback { + webgl_object: WebGLObject, + id: u32, + marked_for_deletion: Cell, + has_been_bound: Cell, + is_active: Cell, + is_paused: Cell, +} + +impl WebGLTransformFeedback { + fn new_inherited(context: &WebGLRenderingContext, id: u32) -> Self { + Self { + webgl_object: WebGLObject::new_inherited(context), + id, + marked_for_deletion: Cell::new(false), + has_been_bound: Cell::new(false), + is_active: Cell::new(false), + is_paused: Cell::new(false), + } + } + + pub fn new(context: &WebGLRenderingContext) -> DomRoot { + let (sender, receiver) = webgl_channel().unwrap(); + context.send_command(WebGLCommand::CreateTransformFeedback(sender)); + let id = receiver.recv().unwrap(); + + reflect_dom_object( + Box::new(WebGLTransformFeedback::new_inherited(context, id)), + &*context.global(), + WebGLTransformFeedbackBinding::Wrap, + ) + } +} + +impl WebGLTransformFeedback { + pub fn bind(&self, context: &WebGLRenderingContext, target: u32) { + context.send_command(WebGLCommand::BindTransformFeedback(target, self.id())); + self.has_been_bound.set(true); + } + + pub fn begin(&self, context: &WebGLRenderingContext, primitive_mode: u32) { + if self.has_been_bound.get() && !self.is_active() { + context.send_command(WebGLCommand::BeginTransformFeedback(primitive_mode)); + self.set_active(true); + } + } + + pub fn end(&self, context: &WebGLRenderingContext) { + if self.has_been_bound.get() && self.is_active() { + if self.is_paused() { + context.send_command(WebGLCommand::ResumeTransformFeedback()); + } + context.send_command(WebGLCommand::EndTransformFeedback()); + self.set_active(false); + } + } + + pub fn resume(&self, context: &WebGLRenderingContext) { + if self.is_active() && self.is_paused() { + context.send_command(WebGLCommand::ResumeTransformFeedback()); + self.set_pause(false); + } + } + + pub fn pause(&self, context: &WebGLRenderingContext) { + if self.is_active() && !self.is_paused() { + context.send_command(WebGLCommand::PauseTransformFeedback()); + self.set_pause(true); + } + } + + pub fn id(&self) -> u32 { + self.id + } + + pub fn is_valid(&self) -> bool { + !self.marked_for_deletion.get() + } + + pub fn is_active(&self) -> bool { + self.is_active.get() + } + + pub fn is_paused(&self) -> bool { + self.is_paused.get() + } + + pub fn delete(&self, fallible: bool) { + if self.is_valid() && self.id() != 0 { + self.marked_for_deletion.set(true); + let context = self.upcast::().context(); + let cmd = WebGLCommand::DeleteTransformFeedback(self.id); + if fallible { + context.send_command_ignored(cmd); + } else { + context.send_command(cmd); + } + } + } + + pub fn set_active(&self, value: bool) { + if self.is_valid() && self.has_been_bound.get() { + self.is_active.set(value); + } + } + + pub fn set_pause(&self, value: bool) { + if self.is_valid() && self.is_active() { + self.is_active.set(value); + } + } +} + +impl Drop for WebGLTransformFeedback { + fn drop(&mut self) { + self.delete(true); + } +} -- cgit v1.2.3 From 3ea6d87bcc37167464e856949a4b9b77d0e9318a Mon Sep 17 00:00:00 2001 From: YUAN LYU Date: Fri, 20 Mar 2020 22:14:18 -0400 Subject: Add trait DomObjectWrap to provide WRAP function --- components/script/dom/webgltransformfeedback.rs | 2 -- 1 file changed, 2 deletions(-) (limited to 'components/script/dom/webgltransformfeedback.rs') diff --git a/components/script/dom/webgltransformfeedback.rs b/components/script/dom/webgltransformfeedback.rs index a58a8e43577..fe4b0753843 100644 --- a/components/script/dom/webgltransformfeedback.rs +++ b/components/script/dom/webgltransformfeedback.rs @@ -2,7 +2,6 @@ * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at https://mozilla.org/MPL/2.0/. */ -use crate::dom::bindings::codegen::Bindings::WebGLTransformFeedbackBinding; use crate::dom::bindings::inheritance::Castable; use crate::dom::bindings::reflector::{reflect_dom_object, DomObject}; use crate::dom::bindings::root::DomRoot; @@ -42,7 +41,6 @@ impl WebGLTransformFeedback { reflect_dom_object( Box::new(WebGLTransformFeedback::new_inherited(context, id)), &*context.global(), - WebGLTransformFeedbackBinding::Wrap, ) } } -- cgit v1.2.3 From 9c343fcc9600a1a2b768a4632793d0856d55ddce Mon Sep 17 00:00:00 2001 From: Tobias Tschinkowitz Date: Thu, 23 Apr 2020 18:23:01 +0200 Subject: Replaced failible boolean with an enum --- components/script/dom/webgltransformfeedback.rs | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) (limited to 'components/script/dom/webgltransformfeedback.rs') diff --git a/components/script/dom/webgltransformfeedback.rs b/components/script/dom/webgltransformfeedback.rs index fe4b0753843..3b0b2abf0a2 100644 --- a/components/script/dom/webgltransformfeedback.rs +++ b/components/script/dom/webgltransformfeedback.rs @@ -6,7 +6,7 @@ use crate::dom::bindings::inheritance::Castable; use crate::dom::bindings::reflector::{reflect_dom_object, DomObject}; use crate::dom::bindings::root::DomRoot; use crate::dom::webglobject::WebGLObject; -use crate::dom::webglrenderingcontext::WebGLRenderingContext; +use crate::dom::webglrenderingcontext::{Operation, WebGLRenderingContext}; use canvas_traits::webgl::{webgl_channel, WebGLCommand}; use dom_struct::dom_struct; use std::cell::Cell; @@ -98,15 +98,14 @@ impl WebGLTransformFeedback { self.is_paused.get() } - pub fn delete(&self, fallible: bool) { + pub fn delete(&self, operation_fallibility: Operation) { if self.is_valid() && self.id() != 0 { self.marked_for_deletion.set(true); let context = self.upcast::().context(); let cmd = WebGLCommand::DeleteTransformFeedback(self.id); - if fallible { - context.send_command_ignored(cmd); - } else { - context.send_command(cmd); + match operation_fallibility { + Operation::Fallible => context.send_command_ignored(cmd), + Operation::Infallible => context.send_command(cmd), } } } @@ -126,6 +125,6 @@ impl WebGLTransformFeedback { impl Drop for WebGLTransformFeedback { fn drop(&mut self) { - self.delete(true); + self.delete(Operation::Fallible); } } -- cgit v1.2.3