114 lines
4.4 KiB
TypeScript
Executable File
114 lines
4.4 KiB
TypeScript
Executable File
/******************************************************************************
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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 GLTexture extends Texture implements Disposable, Restorable {
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private context: ManagedWebGLRenderingContext;
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private texture: WebGLTexture = null;
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private boundUnit = 0;
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private useMipMaps = false;
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public static DISABLE_UNPACK_PREMULTIPLIED_ALPHA_WEBGL = false;
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constructor (context: ManagedWebGLRenderingContext | WebGLRenderingContext, image: HTMLImageElement | ImageBitmap, useMipMaps: boolean = false) {
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super(image);
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this.context = context instanceof ManagedWebGLRenderingContext? context : new ManagedWebGLRenderingContext(context);
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this.useMipMaps = useMipMaps;
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this.restore();
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this.context.addRestorable(this);
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}
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setFilters (minFilter: TextureFilter, magFilter: TextureFilter) {
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let gl = this.context.gl;
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this.bind();
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, minFilter);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, GLTexture.validateMagFilter(magFilter));
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}
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static validateMagFilter (magFilter: TextureFilter) {
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switch(magFilter) {
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case TextureFilter.MipMap:
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case TextureFilter.MipMapLinearLinear:
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case TextureFilter.MipMapLinearNearest:
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case TextureFilter.MipMapNearestLinear:
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case TextureFilter.MipMapNearestNearest:
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return TextureFilter.Linear;
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default:
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return magFilter;
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}
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}
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setWraps (uWrap: TextureWrap, vWrap: TextureWrap) {
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let gl = this.context.gl;
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this.bind();
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, uWrap);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, vWrap);
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}
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update (useMipMaps: boolean) {
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let gl = this.context.gl;
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if (!this.texture) {
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this.texture = this.context.gl.createTexture();
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}
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this.bind();
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if (GLTexture.DISABLE_UNPACK_PREMULTIPLIED_ALPHA_WEBGL) gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false);
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gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, this._image);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, useMipMaps ? gl.LINEAR_MIPMAP_LINEAR : gl.LINEAR);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
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if (useMipMaps) gl.generateMipmap(gl.TEXTURE_2D);
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}
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restore () {
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this.texture = null;
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this.update(this.useMipMaps);
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}
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bind (unit: number = 0) {
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let gl = this.context.gl;
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this.boundUnit = unit;
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gl.activeTexture(gl.TEXTURE0 + unit);
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gl.bindTexture(gl.TEXTURE_2D, this.texture);
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}
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unbind () {
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let gl = this.context.gl;
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gl.activeTexture(gl.TEXTURE0 + this.boundUnit);
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gl.bindTexture(gl.TEXTURE_2D, null);
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}
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dispose () {
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this.context.removeRestorable(this);
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let gl = this.context.gl;
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gl.deleteTexture(this.texture);
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}
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}
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}
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