mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
synced 2026-02-10 17:18:44 +08:00
78a730a6d7
* Rendering, added support for separate color/alpha src blend funcs. * LoadingScreen, set camera zoom to fade out and black flash, use PMA to fix ringing artifacts when scaled, fade in to help hide dropped frames as page loads, use separate color/alpha src blend funcs to properly blend quad when loading screen fades out, oxipng PNGs. * Moved some private constants out of their class to avoid class name prefix. * Player, clean up full pass OCD town, showError throws when possible so stacktrace isn't lost, added showLoading to config, don't create UI when !showControls, removed findWithId (id is unique for entire document), use built-in for findWithClass/contains, var->let, don't clear screen twice during loading, other minor stuff.
108 lines
4.4 KiB
TypeScript
108 lines
4.4 KiB
TypeScript
/******************************************************************************
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* Spine Runtimes License Agreement
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* Last updated January 1, 2020. Replaces all prior versions.
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*
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* Copyright (c) 2013-2020, Esoteric Software LLC
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*
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* Integration of the Spine Runtimes into software or otherwise creating
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* derivative works of the Spine Runtimes is permitted under the terms and
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* conditions of Section 2 of the Spine Editor License Agreement:
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* http://esotericsoftware.com/spine-editor-license
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*
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* Otherwise, it is permitted to integrate the Spine Runtimes into software
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* or otherwise create derivative works of the Spine Runtimes (collectively,
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* "Products"), provided that each user of the Products must obtain their own
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* Spine Editor license and redistribution of the Products in any form must
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* include this license and copyright notice.
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*
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* THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
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* BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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module spine.webgl {
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export class ManagedWebGLRenderingContext {
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public canvas: HTMLCanvasElement | OffscreenCanvas;
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public gl: WebGLRenderingContext;
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private restorables = new Array<Restorable>();
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constructor(canvasOrContext: HTMLCanvasElement | WebGLRenderingContext | EventTarget | WebGL2RenderingContext, contextConfig: any = { alpha: "true" }) {
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if (!((canvasOrContext instanceof WebGLRenderingContext) || (canvasOrContext instanceof WebGL2RenderingContext)))
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this.setupCanvas(canvasOrContext, contextConfig);
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else {
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this.gl = canvasOrContext;
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this.canvas = this.gl.canvas;
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}
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}
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private setupCanvas(canvas: any, contextConfig: any) {
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this.gl = <WebGLRenderingContext> (canvas.getContext("webgl2", contextConfig) || canvas.getContext("webgl", contextConfig));
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this.canvas = canvas;
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canvas.addEventListener("webglcontextlost", (e: any) => {
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let event = <WebGLContextEvent>e;
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if (e) e.preventDefault();
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});
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canvas.addEventListener("webglcontextrestored", (e: any) => {
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for (let i = 0, n = this.restorables.length; i < n; i++)
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this.restorables[i].restore();
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});
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}
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addRestorable(restorable: Restorable) {
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this.restorables.push(restorable);
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}
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removeRestorable(restorable: Restorable) {
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let index = this.restorables.indexOf(restorable);
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if (index > -1) this.restorables.splice(index, 1);
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}
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}
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const ONE = 1;
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const ONE_MINUS_SRC_COLOR = 0x0301;
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const SRC_ALPHA = 0x0302;
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const ONE_MINUS_SRC_ALPHA = 0x0303;
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const ONE_MINUS_DST_ALPHA = 0x0305;
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const DST_COLOR = 0x0306;
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export class WebGLBlendModeConverter {
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static getDestGLBlendMode (blendMode: BlendMode) {
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switch (blendMode) {
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case BlendMode.Normal: return ONE_MINUS_SRC_ALPHA;
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case BlendMode.Additive: return ONE;
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case BlendMode.Multiply: return ONE_MINUS_SRC_ALPHA;
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case BlendMode.Screen: return ONE_MINUS_SRC_ALPHA;
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default: throw new Error("Unknown blend mode: " + blendMode);
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}
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}
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static getSourceColorGLBlendMode (blendMode: BlendMode, premultipliedAlpha: boolean = false) {
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switch (blendMode) {
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case BlendMode.Normal: return premultipliedAlpha ? ONE : SRC_ALPHA;
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case BlendMode.Additive: return premultipliedAlpha ? ONE : SRC_ALPHA;
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case BlendMode.Multiply: return DST_COLOR;
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case BlendMode.Screen: return ONE;
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default: throw new Error("Unknown blend mode: " + blendMode);
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}
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}
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static getSourceAlphaGLBlendMode (blendMode: BlendMode) {
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switch (blendMode) {
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case BlendMode.Normal: return ONE;
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case BlendMode.Additive: return ONE;
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case BlendMode.Multiply: return ONE_MINUS_SRC_ALPHA;
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case BlendMode.Screen: return ONE_MINUS_SRC_COLOR;
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default: throw new Error("Unknown blend mode: " + blendMode);
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}
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}
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}
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}
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