Adding Blink-side support for EXT_shader_texture_lod

BUG=344583

Review URL: https://codereview.chromium.org/171263004

git-svn-id: svn://svn.chromium.org/blink/trunk@171465 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/bindings/v8/custom/V8WebGLRenderingContextCustom.cpp

@@ -33,6 +33,7 @@
 
 #include "V8ANGLEInstancedArrays.h"
 #include "V8EXTFragDepth.h"
+#include "V8EXTShaderTextureLOD.h"
 #include "V8EXTTextureFilterAnisotropic.h"
 #include "V8HTMLCanvasElement.h"
 #include "V8HTMLImageElement.h"
@@ -191,6 +192,10 @@ static v8::Handle<v8::Value> toV8Object(WebGLExtension* extension, v8::Handle<v8
         extensionObject = toV8(static_cast<EXTFragDepth*>(extension), contextObject, isolate);
         referenceName = "extFragDepthName";
         break;
+    case EXTShaderTextureLODName:
+        extensionObject = toV8(static_cast<EXTShaderTextureLOD*>(extension), contextObject, isolate);
+        referenceName = "extShaderTextureLODName";
+        break;
     case EXTTextureFilterAnisotropicName:
         extensionObject = toV8(static_cast<EXTTextureFilterAnisotropic*>(extension), contextObject, isolate);
         referenceName = "extTextureFilterAnisotropicName";

third_party/WebKit/Source/core/core.gypi

@@ -221,6 +221,7 @@
             'html/canvas/CanvasPattern.idl',
             'html/canvas/CanvasRenderingContext2D.idl',
             'html/canvas/EXTFragDepth.idl',
+            'html/canvas/EXTShaderTextureLOD.idl',
             'html/canvas/EXTTextureFilterAnisotropic.idl',
             'html/canvas/OESElementIndexUint.idl',
             'html/canvas/OESStandardDerivatives.idl',
@@ -2496,6 +2497,8 @@
             'html/canvas/DataView.h',
             'html/canvas/EXTFragDepth.cpp',
             'html/canvas/EXTFragDepth.h',
+            'html/canvas/EXTShaderTextureLOD.cpp',
+            'html/canvas/EXTShaderTextureLOD.h',
             'html/canvas/EXTTextureFilterAnisotropic.cpp',
             'html/canvas/EXTTextureFilterAnisotropic.h',
             'html/canvas/OESElementIndexUint.cpp',

third_party/WebKit/Source/core/html/canvas/EXTShaderTextureLOD.cpp

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+
+#include "core/html/canvas/EXTShaderTextureLOD.h"
+
+namespace WebCore {
+
+EXTShaderTextureLOD::EXTShaderTextureLOD(WebGLRenderingContextBase* context)
+    : WebGLExtension(context)
+{
+    ScriptWrappable::init(this);
+    context->extensionsUtil()->ensureExtensionEnabled("GL_EXT_shader_texture_lod");
+}
+
+EXTShaderTextureLOD::~EXTShaderTextureLOD()
+{
+}
+
+WebGLExtensionName EXTShaderTextureLOD::name() const
+{
+    return EXTShaderTextureLODName;
+}
+
+PassRefPtr<EXTShaderTextureLOD> EXTShaderTextureLOD::create(WebGLRenderingContextBase* context)
+{
+    return adoptRef(new EXTShaderTextureLOD(context));
+}
+
+bool EXTShaderTextureLOD::supported(WebGLRenderingContextBase* context)
+{
+    return context->extensionsUtil()->supportsExtension("GL_EXT_shader_texture_lod");
+}
+
+const char* EXTShaderTextureLOD::extensionName()
+{
+    return "EXT_shader_texture_lod";
+}
+
+} // namespace WebCore

third_party/WebKit/Source/core/html/canvas/EXTShaderTextureLOD.h

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef EXTShaderTextureLOD_h
+#define EXTShaderTextureLOD_h
+
+#include "bindings/v8/ScriptWrappable.h"
+#include "core/html/canvas/WebGLExtension.h"
+#include "wtf/PassRefPtr.h"
+
+namespace WebCore {
+
+class EXTShaderTextureLOD FINAL : public WebGLExtension, public ScriptWrappable {
+public:
+    static PassRefPtr<EXTShaderTextureLOD> create(WebGLRenderingContextBase*);
+    static bool supported(WebGLRenderingContextBase*);
+    static const char* extensionName();
+
+    virtual ~EXTShaderTextureLOD();
+    virtual WebGLExtensionName name() const OVERRIDE;
+
+private:
+    EXTShaderTextureLOD(WebGLRenderingContextBase*);
+};
+
+} // namespace WebCore
+
+#endif // EXTShaderTextureLOD_h

third_party/WebKit/Source/core/html/canvas/EXTShaderTextureLOD.idl

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+[
+    NoInterfaceObject
+] interface EXTShaderTextureLOD {
+};

third_party/WebKit/Source/core/html/canvas/WebGLExtensionName.h

@@ -11,6 +11,7 @@ namespace WebCore {
 enum WebGLExtensionName {
     ANGLEInstancedArraysName,
     EXTFragDepthName,
+    EXTShaderTextureLODName,
     EXTTextureFilterAnisotropicName,
     OESElementIndexUintName,
     OESStandardDerivativesName,

third_party/WebKit/Source/core/html/canvas/WebGLRenderingContext.cpp

@@ -29,6 +29,7 @@
 #include "core/frame/LocalFrame.h"
 #include "core/html/canvas/ANGLEInstancedArrays.h"
 #include "core/html/canvas/EXTFragDepth.h"
+#include "core/html/canvas/EXTShaderTextureLOD.h"
 #include "core/html/canvas/EXTTextureFilterAnisotropic.h"
 #include "core/html/canvas/OESElementIndexUint.h"
 #include "core/html/canvas/OESStandardDerivatives.h"
@@ -139,6 +140,7 @@ void WebGLRenderingContext::registerContextExtensions()
 
     // Register draft extensions.
     registerExtension<EXTFragDepth>(m_extFragDepth, DraftExtension);
+    registerExtension<EXTShaderTextureLOD>(m_extShaderTextureLOD, DraftExtension);
 
     // Register privileged extensions.
     registerExtension<WebGLDebugRendererInfo>(m_webglDebugRendererInfo, WebGLDebugRendererInfoExtension);

third_party/WebKit/Source/core/html/canvas/WebGLRenderingContext.h

@@ -46,6 +46,7 @@ private:
     // Enabled extension objects.
     RefPtr<ANGLEInstancedArrays> m_angleInstancedArrays;
     RefPtr<EXTFragDepth> m_extFragDepth;
+    RefPtr<EXTShaderTextureLOD> m_extShaderTextureLOD;
     RefPtr<EXTTextureFilterAnisotropic> m_extTextureFilterAnisotropic;
     RefPtr<OESTextureFloat> m_oesTextureFloat;
     RefPtr<OESTextureFloatLinear> m_oesTextureFloatLinear;

third_party/WebKit/Source/core/html/canvas/WebGLRenderingContextBase.cpp

@@ -39,6 +39,7 @@
 #include "core/html/ImageData.h"
 #include "core/html/canvas/ANGLEInstancedArrays.h"
 #include "core/html/canvas/EXTFragDepth.h"
+#include "core/html/canvas/EXTShaderTextureLOD.h"
 #include "core/html/canvas/EXTTextureFilterAnisotropic.h"
 #include "core/html/canvas/OESElementIndexUint.h"
 #include "core/html/canvas/OESStandardDerivatives.h"

third_party/WebKit/Source/core/html/canvas/WebGLRenderingContextBase.h

@@ -52,6 +52,7 @@ namespace WebCore {
 
 class ANGLEInstancedArrays;
 class EXTFragDepth;
+class EXTShaderTextureLOD;
 class EXTTextureFilterAnisotropic;
 class ExceptionState;
 class HTMLImageElement;