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/*
* Copyright (C) Research In Motion Limited 2009. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "VGUtils.h"
#include "AffineTransform.h"
#include "FloatRect.h"
#include "TransformationMatrix.h"
namespace WebCore {
VGMatrix::VGMatrix(const VGfloat data[9])
{
m_data[0] = data[0];
m_data[1] = data[1];
m_data[2] = data[2];
m_data[3] = data[3];
m_data[4] = data[4];
m_data[5] = data[5];
m_data[6] = data[6];
m_data[7] = data[7];
m_data[8] = data[8];
}
VGMatrix::VGMatrix(const AffineTransform& transformation)
{
m_data[0] = transformation.a();
m_data[1] = transformation.b();
m_data[2] = 0;
m_data[3] = transformation.c();
m_data[4] = transformation.d();
m_data[5] = 0;
m_data[6] = transformation.e();
m_data[7] = transformation.f();
m_data[8] = 1;
}
VGMatrix::VGMatrix(const TransformationMatrix& matrix)
{
m_data[0] = matrix.m11();
m_data[1] = matrix.m12();
m_data[2] = matrix.m14();
m_data[3] = matrix.m21();
m_data[4] = matrix.m22();
m_data[5] = matrix.m24();
m_data[6] = matrix.m41();
m_data[7] = matrix.m42();
m_data[8] = matrix.m44();
}
VGMatrix::operator AffineTransform() const
{
AffineTransform transformation(
m_data[0], m_data[1],
m_data[3], m_data[4],
m_data[6], m_data[7]);
return transformation;
}
VGMatrix::operator TransformationMatrix() const
{
TransformationMatrix matrix(
m_data[0], m_data[1], 0, m_data[2],
m_data[3], m_data[4], 0, m_data[5],
0, 0, 1, 0,
m_data[6], m_data[7], 0, m_data[8]);
return matrix;
}
AffineTransform::operator VGMatrix() const
{
return VGMatrix(*this);
}
TransformationMatrix::operator VGMatrix() const
{
return VGMatrix(*this);
}
VGRect::VGRect(const VGfloat data[4])
{
m_data[0] = data[0];
m_data[1] = data[1];
m_data[2] = data[2];
m_data[3] = data[3];
}
VGRect::VGRect(const FloatRect& rect)
{
m_data[0] = rect.x();
m_data[1] = rect.y();
m_data[2] = rect.width();
m_data[3] = rect.height();
}
VGRect::operator FloatRect() const
{
return FloatRect(m_data[0], m_data[1], m_data[2], m_data[3]);
}
FloatRect::operator VGRect() const
{
return VGRect(*this);
}
int VGUtils::bytesForImage(VGImageFormat format, VGint width, VGint height)
{
return width * height * imageFormatBitsPerPixel(format) / 8;
}
int VGUtils::bytesForImageScanline(VGImageFormat format, VGint width)
{
int bits = width * imageFormatBitsPerPixel(format);
if (bits % 8 > 1) // If unaligned, round up to the next byte.
bits += 8 - (bits % 8);
return bits / 8;
}
int VGUtils::imageFormatBitsPerPixel(VGImageFormat format)
{
switch (format) {
case VG_sRGBX_8888:
case VG_sRGBA_8888:
case VG_sRGBA_8888_PRE:
case VG_lRGBX_8888:
case VG_lRGBA_8888:
case VG_lRGBA_8888_PRE:
case VG_sXRGB_8888:
case VG_sARGB_8888:
case VG_sARGB_8888_PRE:
case VG_lXRGB_8888:
case VG_lARGB_8888:
case VG_lARGB_8888_PRE:
case VG_sBGRX_8888:
case VG_sBGRA_8888:
case VG_sBGRA_8888_PRE:
case VG_lBGRX_8888:
case VG_lBGRA_8888:
case VG_lBGRA_8888_PRE:
case VG_sXBGR_8888:
case VG_sABGR_8888:
case VG_sABGR_8888_PRE:
case VG_lXBGR_8888:
case VG_lABGR_8888:
case VG_lABGR_8888_PRE:
return 32;
case VG_sRGB_565:
case VG_sRGBA_5551:
case VG_sRGBA_4444:
case VG_sARGB_1555:
case VG_sARGB_4444:
case VG_sBGR_565:
case VG_sBGRA_5551:
case VG_sBGRA_4444:
case VG_sABGR_1555:
case VG_sABGR_4444:
return 16;
case VG_sL_8:
case VG_lL_8:
case VG_A_8:
return 8;
case VG_A_4:
return 4;
case VG_BW_1:
case VG_A_1:
return 1;
default: // Will only happen when OpenVG extends the enum and we don't.
ASSERT(false);
return 0;
}
}
#ifndef WTF_PLATFORM_BIG_ENDIAN
VGImageFormat VGUtils::endianAwareImageFormat(VGImageFormat bigEndianFormat)
{
switch (bigEndianFormat) {
case VG_sRGBX_8888: return VG_sXBGR_8888;
case VG_sRGBA_8888: return VG_sABGR_8888;
case VG_sRGBA_8888_PRE: return VG_sABGR_8888_PRE;
case VG_lRGBX_8888: return VG_lXBGR_8888;
case VG_lRGBA_8888: return VG_lABGR_8888;
case VG_lRGBA_8888_PRE: return VG_lABGR_8888_PRE;
case VG_sXRGB_8888: return VG_sBGRX_8888;
case VG_sARGB_8888: return VG_sBGRA_8888;
case VG_sARGB_8888_PRE: return VG_sBGRA_8888_PRE;
case VG_lXRGB_8888: return VG_lBGRX_8888;
case VG_lARGB_8888: return VG_lBGRA_8888;
case VG_lARGB_8888_PRE: return VG_lBGRA_8888_PRE;
case VG_sBGRX_8888: return VG_sXRGB_8888;
case VG_sBGRA_8888: return VG_sARGB_8888;
case VG_sBGRA_8888_PRE: return VG_sARGB_8888_PRE;
case VG_lBGRX_8888: return VG_lXRGB_8888;
case VG_lBGRA_8888: return VG_lARGB_8888;
case VG_lBGRA_8888_PRE: return VG_lARGB_8888_PRE;
case VG_sXBGR_8888: return VG_sRGBX_8888;
case VG_sABGR_8888: return VG_sRGBA_8888;
case VG_sABGR_8888_PRE: return VG_sRGBA_8888_PRE;
case VG_lXBGR_8888: return VG_lRGBX_8888;
case VG_lABGR_8888: return VG_lRGBA_8888;
case VG_lABGR_8888_PRE: return VG_lRGBA_8888_PRE;
default: ASSERT(false);
return (VGImageFormat) 0;
}
}
#else
VGImageFormat VGUtils::endianAwareImageFormat(VGImageFormat bigEndianFormat)
{
return bigEndianFormat;
}
#endif
}
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