Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 89 insertions, 0 deletions

diff --git a/Source/WebCore/html/canvas/WebGLProgram.h b/Source/WebCore/html/canvas/WebGLProgram.h
new file mode 100644
index 0000000..6b89ae5
--- /dev/null
+++ b/Source/WebCore/html/canvas/WebGLProgram.h
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#ifndef WebGLProgram_h
+#define WebGLProgram_h
+
+#include "WebGLObject.h"
+
+#include "WebGLShader.h"
+
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefCounted.h>
+#include <wtf/Vector.h>
+
+namespace WebCore {
+
+class WebGLProgram : public WebGLObject {
+public:
+    virtual ~WebGLProgram() { deleteObject(); }
+
+    static PassRefPtr<WebGLProgram> create(WebGLRenderingContext*);
+
+    // cacheActiveAttribLocation() is only called once after linkProgram()
+    // succeeds.
+    bool cacheActiveAttribLocations();
+    int numActiveAttribLocations() const;
+    int getActiveAttribLocation(int index) const;
+
+    bool isUsingVertexAttrib0() const;
+
+    bool getLinkStatus() const { return m_linkStatus; }
+    void setLinkStatus(bool status) { m_linkStatus = status; }
+
+    unsigned long getLinkCount() const { return m_linkCount; }
+
+    // This is to be called everytime after the program is successfully linked.
+    // We don't deal with integer overflow here, assuming in reality a program
+    // will never be linked so many times.
+    void increaseLinkCount() { ++m_linkCount; }
+
+    WebGLShader* getAttachedShader(GraphicsContext3D::WebGLEnumType);
+    bool attachShader(WebGLShader*);
+    bool detachShader(WebGLShader*);
+
+protected:
+    WebGLProgram(WebGLRenderingContext*);
+
+    virtual void deleteObjectImpl(Platform3DObject);
+
+private:
+    virtual bool isProgram() const { return true; }
+
+    Vector<int> m_activeAttribLocations;
+
+    bool m_linkStatus;
+
+    // This is used to track whether a WebGLUniformLocation belongs to this
+    // program or not.
+    unsigned long m_linkCount;
+
+    RefPtr<WebGLShader> m_vertexShader;
+    RefPtr<WebGLShader> m_fragmentShader;
+};
+
+} // namespace WebCore
+
+#endif // WebGLProgram_h