Source/WebCore: Expose WEBGL_depth_texture extension to WebGL

Source/WebCore: Expose WEBGL_depth_texture extension to WebGL
https://bugs.webkit.org/show_bug.cgi?id=87029

Patch by Gregg Tavares <gman@google.com> on 2012-06-18
Reviewed by Kenneth Russell.

Test: fast/canvas/webgl/webgl-depth-texture.html

* CMakeLists.txt:
* DerivedSources.make:
* GNUmakefile.list.am:
* Target.pri:
* WebCore.gypi:
* bindings/js/JSWebGLRenderingContextCustom.cpp:
(WebCore::toJS):
* bindings/v8/custom/V8WebGLRenderingContextCustom.cpp:
(WebCore::toV8Object):
* html/canvas/WebGLDepthTexture.cpp: Copied from Source/WebCore/html/canvas/WebGLExtension.h.
(WebCore):
(WebCore::WebGLDepthTexture::WebGLDepthTexture):
(WebCore::WebGLDepthTexture::~WebGLDepthTexture):
(WebCore::WebGLDepthTexture::getName):
(WebCore::WebGLDepthTexture::create):
(WebCore::WebGLDepthTexture::supported):
* html/canvas/WebGLDepthTexture.h: Copied from Source/WebCore/html/canvas/WebGLExtension.h.
(WebCore):
(WebGLDepthTexture):
* html/canvas/WebGLDepthTexture.idl: Copied from Source/WebCore/html/canvas/WebGLExtension.h.
* html/canvas/WebGLExtension.h:
* html/canvas/WebGLFramebuffer.cpp:
(WebCore::WebGLFramebuffer::initializeAttachments):
* html/canvas/WebGLRenderingContext.cpp:
(WebCore):
(WebCore::WebGLRenderingContext::validateSettableTexFormat):
(WebCore::WebGLRenderingContext::copyTexImage2D):
(WebCore::WebGLRenderingContext::copyTexSubImage2D):
(WebCore::WebGLRenderingContext::generateMipmap):
(WebCore::WebGLRenderingContext::getExtension):
(WebCore::WebGLRenderingContext::getSupportedExtensions):
(WebCore::WebGLRenderingContext::texImage2DBase):
(WebCore::WebGLRenderingContext::texImage2D):
(WebCore::WebGLRenderingContext::texSubImage2DBase):
(WebCore::WebGLRenderingContext::texSubImage2D):
(WebCore::WebGLRenderingContext::validateTexFuncFormatAndType):
(WebCore::WebGLRenderingContext::validateTexFuncParameters):
(WebCore::WebGLRenderingContext::validateTexFuncData):
* html/canvas/WebGLRenderingContext.h:
(WebCore):
(WebGLRenderingContext):
* platform/graphics/GraphicsContext3D.cpp:
(WebCore::GraphicsContext3D::getClearBitsByAttachmentType):
(WebCore):
(WebCore::GraphicsContext3D::getClearBitsByFormat):
* platform/graphics/GraphicsContext3D.h:

LayoutTests: Expose WEBGL_depth_texture extension to WebGL
https://bugs.webkit.org/show_bug.cgi?id=87029

Patch by Gregg Tavares <gman@google.com> on 2012-06-18
Reviewed by Kenneth Russell.

* fast/canvas/webgl/resources/webgl-test-utils.js:
(WebGLTestUtils):
* fast/canvas/webgl/webgl-depth-texture-expected.txt: Added.
* fast/canvas/webgl/webgl-depth-texture.html: Added.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@120668 268f45cc-cd09-0410-ab3c-d52691b4dbfc