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28 #include "core/html/canvas/WebGLCompressedTextureS3TC.h"
30 #include "core/html/canvas/WebGLRenderingContextBase.h"
34 WebGLCompressedTextureS3TC::WebGLCompressedTextureS3TC(WebGLRenderingContextBase* context)
35 : WebGLExtension(context)
37 context->addCompressedTextureFormat(GL_COMPRESSED_RGB_S3TC_DXT1_EXT);
38 context->addCompressedTextureFormat(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT);
39 context->addCompressedTextureFormat(GL_COMPRESSED_RGBA_S3TC_DXT3_EXT);
40 context->addCompressedTextureFormat(GL_COMPRESSED_RGBA_S3TC_DXT5_EXT);
43 WebGLCompressedTextureS3TC::~WebGLCompressedTextureS3TC()
47 WebGLExtensionName WebGLCompressedTextureS3TC::name() const
49 return WebGLCompressedTextureS3TCName;
52 PassRefPtrWillBeRawPtr<WebGLCompressedTextureS3TC> WebGLCompressedTextureS3TC::create(WebGLRenderingContextBase* context)
54 return adoptRefWillBeNoop(new WebGLCompressedTextureS3TC(context));
57 bool WebGLCompressedTextureS3TC::supported(WebGLRenderingContextBase* context)
59 Extensions3DUtil* extensionsUtil = context->extensionsUtil();
60 return extensionsUtil->supportsExtension("GL_EXT_texture_compression_s3tc")
61 || (extensionsUtil->supportsExtension("GL_EXT_texture_compression_dxt1")
62 && extensionsUtil->supportsExtension("GL_CHROMIUM_texture_compression_dxt3")
63 && extensionsUtil->supportsExtension("GL_CHROMIUM_texture_compression_dxt5"));
66 const char* WebGLCompressedTextureS3TC::extensionName()
68 return "WEBGL_compressed_texture_s3tc";