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Added getCompressedTextures method

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This commit is contained in:
Richard Davey 2021-10-05 16:48:42 +01:00
parent 2e06243675
commit 573dd3a14d
1 changed files with 53 additions and 11 deletions
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64
src/renderer/webgl/WebGLRenderer.js
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@ -420,15 +420,13 @@ var WebGLRenderer = new Class({
/**
* Stores the supported WebGL texture compression formats.
*
* Overhauled in version 3.60.
*
* @name Phaser.Renderer.WebGL.WebGLRenderer#compression
* @type {Phaser.Types.Renderer.WebGL.WebGLTextureCompression}
* @since 3.8.0
*/
this.compression = {
ETC1: false,
PVRTC: false,
S3TC: false
};
this.compression;
/**
* Cached drawing buffer height to reduce gl calls.
@ -780,12 +778,7 @@ var WebGLRenderer = new Class({
config.maxTextureSize = gl.getParameter(gl.MAX_TEXTURE_SIZE);
}
var extString = 'WEBGL_compressed_texture_';
var wkExtString = 'WEBKIT_' + extString;
this.compression.ETC1 = gl.getExtension(extString + 'etc1') || gl.getExtension(wkExtString + 'etc1');
this.compression.PVRTC = gl.getExtension(extString + 'pvrtc') || gl.getExtension(wkExtString + 'pvrtc');
this.compression.S3TC = gl.getExtension(extString + 's3tc') || gl.getExtension(wkExtString + 's3tc');
this.compression = this.getCompressedTextures();
this.supportedExtensions = exts;
@ -999,6 +992,55 @@ var WebGLRenderer = new Class({
return this;
},
/**
* Determines which compressed texture formats this browser and device supports.
*
* Called automatically as part of the WebGL Renderer init process. If you need to investigate
* which formats it supports, see the `Phaser.Renderer.WebGL.WebGLRenderer#compression` property instead.
*
* @method Phaser.Renderer.WebGL.WebGLRenderer#getCompressedTextures
* @since 3.60.0
*
* @return {Phaser.Types.Renderer.WebGL.WebGLTextureCompression} The compression object.
*/
getCompressedTextures: function ()
{
var extString = 'WEBGL_compressed_texture_';
var wkExtString = 'WEBKIT_' + extString;
var hasExt = function (gl, format)
{
var results = gl.getExtension(extString + format) || gl.getExtension(wkExtString + format);
if (results)
{
var glEnums = {};
for (var key in results)
{
glEnums[results[key]] = key;
}
return glEnums;
}
};
var gl = this.gl;
return {
ETC: hasExt(gl, 'etc'),
ETC1: hasExt(gl, 'etc1'),
ATC: hasExt(gl, 'atc'),
ASTC: hasExt(gl, 'astc'),
BPTC: hasExt(gl, 'bptc'),
RGTC: hasExt(gl, 'rgtc'),
PVRTC: hasExt(gl, 'pvrtc'),
S3TC: hasExt(gl, 's3tc'),
S3TCSRGB: hasExt(gl, 's3tc_srgb'),
IMG: true
};
},
/**
* Gets the aspect ratio of the WebGLRenderer dimensions.
*