/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you under the Apache * License, Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#pragma once
#include <sal/types.h>
namespace canvas
{ /** Interface for a raw memory pixel container
Use this interface to represent a surface of raw pixel (e.g. a bitmap) to the canvas rendering framework.
*/ struct IColorBuffer
{ /// The underlying pixel format for this buffer enumclass Format
{ // 32-bit ARGB pixel format with alpha, 8 bits per channel.
A8R8G8B8,
// 32-bit RGB pixel format, 8 bits per channel.
X8R8G8B8
};
virtual ~IColorBuffer() {}
/** Get a pointer to the raw memory bits of the pixel
*/ virtual sal_uInt8* lock() const = 0;
/** Get width in pixel
*/ virtual sal_uInt32 getWidth() const = 0;
/** Get height in pixel
*/ virtual sal_uInt32 getHeight() const = 0;
/** Offset, in bytes, between consecutive scan lines of the bitmap. If the stride is positive, the bitmap is top-down. If the stride is negative, the bitmap is bottom-up. The returned value is only valid while the buffer is locked.
*/ virtual sal_uInt32 getStride() const = 0;
/** Get format of the color buffer
*/ virtual Format getFormat() const = 0;
};
}
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