1 /* 2 * Copyright (C) 2009 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef WebGLArray_h 27 #define WebGLArray_h 28 29 #include "ExceptionCode.h" 30 #include <wtf/PassRefPtr.h> 31 #include <wtf/RefCounted.h> 32 #include <wtf/RefPtr.h> 33 #include "WebGLArrayBuffer.h" 34 35 namespace WebCore { 36 37 class WebGLArray : public RefCounted<WebGLArray> { 38 public: 39 virtual bool isByteArray() const { return false; } 40 virtual bool isUnsignedByteArray() const { return false; } 41 virtual bool isShortArray() const { return false; } 42 virtual bool isUnsignedShortArray() const { return false; } 43 virtual bool isIntArray() const { return false; } 44 virtual bool isUnsignedIntArray() const { return false; } 45 virtual bool isFloatArray() const { return false; } 46 47 PassRefPtr<WebGLArrayBuffer> buffer() { 48 return m_buffer; 49 } 50 51 void* baseAddress() { 52 return m_baseAddress; 53 } 54 55 unsigned byteOffset() const { 56 return m_byteOffset; 57 } 58 59 virtual unsigned length() const = 0; 60 virtual unsigned byteLength() const = 0; 61 virtual PassRefPtr<WebGLArray> slice(unsigned offset, unsigned length) = 0; 62 63 virtual ~WebGLArray(); 64 65 protected: 66 WebGLArray(PassRefPtr<WebGLArrayBuffer> buffer, unsigned byteOffset); 67 68 void setImpl(WebGLArray* array, unsigned byteOffset, ExceptionCode& ec); 69 70 // This is the address of the WebGLArrayBuffer's storage, plus the byte offset. 71 void* m_baseAddress; 72 73 unsigned m_byteOffset; 74 75 private: 76 RefPtr<WebGLArrayBuffer> m_buffer; 77 }; 78 79 } // namespace WebCore 80 81 #endif // WebGLArray_h 82
