15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2011 Google Inc. All rights reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modification, are permitted provided that the following conditions 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * are met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 1. Redistributions of source code must retain the above copyright 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 2. Redistributions in binary form must reproduce the above copyright 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer in the 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * documentation and/or other materials provided with the distribution. 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "config.h" 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/html/canvas/WebGLCompressedTextureS3TC.h" 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/html/canvas/WebGLRenderingContext.h" 31a854de003a23bf3c7f95ec0f8154ada64092ff5cTorne (Richard Coles)#include "platform/graphics/Extensions3D.h" 325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)namespace WebCore { 345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)WebGLCompressedTextureS3TC::WebGLCompressedTextureS3TC(WebGLRenderingContext* context) 365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) : WebGLExtension(context) 375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 3893ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) ScriptWrappable::init(this); 395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) context->addCompressedTextureFormat(Extensions3D::COMPRESSED_RGB_S3TC_DXT1_EXT); 405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) context->addCompressedTextureFormat(Extensions3D::COMPRESSED_RGBA_S3TC_DXT1_EXT); 415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) context->addCompressedTextureFormat(Extensions3D::COMPRESSED_RGBA_S3TC_DXT3_EXT); 425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) context->addCompressedTextureFormat(Extensions3D::COMPRESSED_RGBA_S3TC_DXT5_EXT); 435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)WebGLCompressedTextureS3TC::~WebGLCompressedTextureS3TC() 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 4906f816c7c76bc45a15e452ade8a34e8af077693eTorne (Richard Coles)WebGLExtension::ExtensionName WebGLCompressedTextureS3TC::name() const 505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 51926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) return WebGLCompressedTextureS3TCName; 525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 54521d96ec04ace82590870fb04353ec4f82bb150fTorne (Richard Coles)PassRefPtr<WebGLCompressedTextureS3TC> WebGLCompressedTextureS3TC::create(WebGLRenderingContext* context) 555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 56521d96ec04ace82590870fb04353ec4f82bb150fTorne (Richard Coles) return adoptRef(new WebGLCompressedTextureS3TC(context)); 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)bool WebGLCompressedTextureS3TC::supported(WebGLRenderingContext* context) 605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 6106f816c7c76bc45a15e452ade8a34e8af077693eTorne (Richard Coles) Extensions3D* extensions = context->graphicsContext3D()->extensions(); 625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return extensions->supports("GL_EXT_texture_compression_s3tc") 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) || (extensions->supports("GL_EXT_texture_compression_dxt1") 645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) && extensions->supports("GL_CHROMIUM_texture_compression_dxt3") 655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) && extensions->supports("GL_CHROMIUM_texture_compression_dxt5")); 665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 6806f816c7c76bc45a15e452ade8a34e8af077693eTorne (Richard Coles)const char* WebGLCompressedTextureS3TC::extensionName() 6953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles){ 7053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) return "WEBGL_compressed_texture_s3tc"; 7153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} 725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 7353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)} // namespace WebCore 74