本文整理汇总了C++中osg::Image::getImageSizeInBytes方法的典型用法代码示例。如果您正苦于以下问题：C++ Image::getImageSizeInBytes方法的具体用法？C++ Image::getImageSizeInBytes怎么用？C++ Image::getImageSizeInBytes使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类osg::Image的用法示例。
在下文中一共展示了Image::getImageSizeInBytes方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: writeRGBStream
WriteResult writeRGBStream(const osg::Image& img, std::ostream &fout, const std::string& name) const
{
rawImageRec raw;
raw.imagic = 0732;
GLenum dataType = img.getDataType();
raw.type = dataType == GL_UNSIGNED_BYTE ? 1 :
dataType == GL_BYTE ? 1 :
dataType == GL_BITMAP ? 1 :
dataType == GL_UNSIGNED_SHORT ? 2 :
dataType == GL_SHORT ? 2 :
dataType == GL_UNSIGNED_INT ? 4 :
dataType == GL_INT ? 4 :
dataType == GL_FLOAT ? 4 :
dataType == GL_UNSIGNED_BYTE_3_3_2 ? 1 :
dataType == GL_UNSIGNED_BYTE_2_3_3_REV ? 1 :
dataType == GL_UNSIGNED_SHORT_5_6_5 ? 2 :
dataType == GL_UNSIGNED_SHORT_5_6_5_REV ? 2 :
dataType == GL_UNSIGNED_SHORT_4_4_4_4 ? 2 :
dataType == GL_UNSIGNED_SHORT_4_4_4_4_REV ? 2 :
dataType == GL_UNSIGNED_SHORT_5_5_5_1 ? 2 :
dataType == GL_UNSIGNED_SHORT_1_5_5_5_REV ? 2 :
dataType == GL_UNSIGNED_INT_8_8_8_8 ? 4 :
dataType == GL_UNSIGNED_INT_8_8_8_8_REV ? 4 :
dataType == GL_UNSIGNED_INT_10_10_10_2 ? 4 :
dataType == GL_UNSIGNED_INT_2_10_10_10_REV ? 4 : 4;
GLenum pixelFormat = img.getPixelFormat();
raw.dim = 3;
raw.sizeX = img.s();
raw.sizeY = img.t();
raw.sizeZ =
pixelFormat == GL_COLOR_INDEX? 1 :
pixelFormat == GL_RED? 1 :
pixelFormat == GL_GREEN? 1 :
pixelFormat == GL_BLUE? 1 :
pixelFormat == GL_ALPHA? 1 :
pixelFormat == GL_RGB? 3 :
pixelFormat == GL_BGR ? 3 :
pixelFormat == GL_RGBA? 4 :
pixelFormat == GL_BGRA? 4 :
pixelFormat == GL_LUMINANCE? 1 :
pixelFormat == GL_LUMINANCE_ALPHA ? 2 : 1;
raw.min = 0;
raw.max = 0xFF;
raw.wasteBytes = 0;
strncpy( raw.name, name.c_str(), 80);
raw.colorMap = 0;
raw.bpc = (img.getPixelSizeInBits()/raw.sizeZ)/8;
int isize = img.getImageSizeInBytes();
unsigned char *buffer = new unsigned char[isize];
if(raw.bpc == 1)
{
unsigned char *dptr = buffer;
int i, j;
for( i = 0; i < raw.sizeZ; ++i )
{
const unsigned char *ptr = img.data();
ptr += i;
for( j = 0; j < isize/raw.sizeZ; ++j )
{
*(dptr++) = *ptr;
ptr += raw.sizeZ;
}
}
}
else
{ // bpc == 2
unsigned short *dptr = reinterpret_cast<unsigned short*>(buffer);
int i, j;
for( i = 0; i < raw.sizeZ; ++i )
{
const unsigned short *ptr = reinterpret_cast<const unsigned short*>(img.data());
ptr += i;
for( j = 0; j < isize/(raw.sizeZ*2); ++j )
{
*dptr = *ptr;
ConvertShort(dptr++, 1);
ptr += raw.sizeZ;
}
}
}
if( raw.needsBytesSwapped() )
raw.swapBytes();
/*
swapBytes( raw.imagic );
swapBytes( raw.type );
swapBytes( raw.dim );
swapBytes( raw.sizeX );
swapBytes( raw.sizeY );
swapBytes( raw.sizeZ );
swapBytes( raw.min );
swapBytes( raw.max );
swapBytes( raw.colorMap );
//.........这里部分代码省略.........