Renamed numBytesPerPixel to numBytesPerComponent to be clearer

This commit is contained in:
Robert Osfield 2018-03-06 09:58:31 +00:00
parent 64341cfb72
commit b03e76bdb9

View File

@ -256,7 +256,7 @@ class ReaderWriterGDAL : public osgDB::ReaderWriter
int internalFormat = GL_LUMINANCE;
unsigned int pixelFormat = GL_LUMINANCE;
unsigned int dataType = 0;
unsigned int numBytesPerPixel = 0;
unsigned int numBytesPerComponent = 0;
GDALDataType targetGDALType = GDT_Byte;
@ -327,14 +327,14 @@ class ReaderWriterGDAL : public osgDB::ReaderWriter
targetGDALType = band->GetRasterDataType();
switch(band->GetRasterDataType())
{
case(GDT_Byte): dataType = GL_UNSIGNED_BYTE; numBytesPerPixel = 1; break;
case(GDT_UInt16): dataType = GL_UNSIGNED_SHORT; numBytesPerPixel = 2; break;
case(GDT_Int16): dataType = GL_SHORT; numBytesPerPixel = 2; break;
case(GDT_UInt32): dataType = GL_UNSIGNED_INT; numBytesPerPixel = 4; break;
case(GDT_Int32): dataType = GL_INT; numBytesPerPixel = 4; break;
case(GDT_Float32): dataType = GL_FLOAT; numBytesPerPixel = 4; break;
case(GDT_Float64): dataType = GL_DOUBLE; numBytesPerPixel = 8; break; // not handled
default: dataType = 0; numBytesPerPixel = 0; break; // not handled
case(GDT_Byte): dataType = GL_UNSIGNED_BYTE; numBytesPerComponent = 1; break;
case(GDT_UInt16): dataType = GL_UNSIGNED_SHORT; numBytesPerComponent = 2; break;
case(GDT_Int16): dataType = GL_SHORT; numBytesPerComponent = 2; break;
case(GDT_UInt32): dataType = GL_UNSIGNED_INT; numBytesPerComponent = 4; break;
case(GDT_Int32): dataType = GL_INT; numBytesPerComponent = 4; break;
case(GDT_Float32): dataType = GL_FLOAT; numBytesPerComponent = 4; break;
case(GDT_Float64): dataType = GL_DOUBLE; numBytesPerComponent = 8; break; // not handled
default: dataType = 0; numBytesPerComponent = 0; break; // not handled
}
}
}
@ -348,7 +348,7 @@ class ReaderWriterGDAL : public osgDB::ReaderWriter
if (dataType==0)
{
dataType = GL_UNSIGNED_BYTE;
numBytesPerPixel = 1;
numBytesPerComponent = 1;
targetGDALType = GDT_Byte;
}
@ -360,7 +360,7 @@ class ReaderWriterGDAL : public osgDB::ReaderWriter
{
// RGBA
int pixelSpace=4*numBytesPerPixel;
int pixelSpace=4*numBytesPerComponent;
int lineSpace=destWidth * pixelSpace;
imageData = new unsigned char[destWidth * destHeight * pixelSpace];
@ -370,16 +370,16 @@ class ReaderWriterGDAL : public osgDB::ReaderWriter
OSG_INFO << "reading RGBA"<<std::endl;
bandRed->RasterIO(GF_Read,windowX,windowY,windowWidth,windowHeight,(void*)(imageData+0),destWidth,destHeight,targetGDALType,pixelSpace,lineSpace);
bandGreen->RasterIO(GF_Read,windowX,windowY,windowWidth,windowHeight,(void*)(imageData+1*numBytesPerPixel),destWidth,destHeight,targetGDALType,pixelSpace,lineSpace);
bandBlue->RasterIO(GF_Read,windowX,windowY,windowWidth,windowHeight,(void*)(imageData+2*numBytesPerPixel),destWidth,destHeight,targetGDALType,pixelSpace,lineSpace);
bandAlpha->RasterIO(GF_Read,windowX,windowY,windowWidth,windowHeight,(void*)(imageData+3*numBytesPerPixel),destWidth,destHeight,targetGDALType,pixelSpace,lineSpace);
bandGreen->RasterIO(GF_Read,windowX,windowY,windowWidth,windowHeight,(void*)(imageData+1*numBytesPerComponent),destWidth,destHeight,targetGDALType,pixelSpace,lineSpace);
bandBlue->RasterIO(GF_Read,windowX,windowY,windowWidth,windowHeight,(void*)(imageData+2*numBytesPerComponent),destWidth,destHeight,targetGDALType,pixelSpace,lineSpace);
bandAlpha->RasterIO(GF_Read,windowX,windowY,windowWidth,windowHeight,(void*)(imageData+3*numBytesPerComponent),destWidth,destHeight,targetGDALType,pixelSpace,lineSpace);
}
else
{
// RGB
int pixelSpace=3*numBytesPerPixel;
int pixelSpace=3*numBytesPerComponent;
int lineSpace=destWidth * pixelSpace;
imageData = new unsigned char[destWidth * destHeight * pixelSpace];
@ -389,8 +389,8 @@ class ReaderWriterGDAL : public osgDB::ReaderWriter
OSG_INFO << "reading RGB"<<std::endl;
bandRed->RasterIO(GF_Read,windowX,windowY,windowWidth,windowHeight,(void*)(imageData+0),destWidth,destHeight,targetGDALType,pixelSpace,lineSpace);
bandGreen->RasterIO(GF_Read,windowX,windowY,windowWidth,windowHeight,(void*)(imageData+1*numBytesPerPixel),destWidth,destHeight,targetGDALType,pixelSpace,lineSpace);
bandBlue->RasterIO(GF_Read,windowX,windowY,windowWidth,windowHeight,(void*)(imageData+2*numBytesPerPixel),destWidth,destHeight,targetGDALType,pixelSpace,lineSpace);
bandGreen->RasterIO(GF_Read,windowX,windowY,windowWidth,windowHeight,(void*)(imageData+1*numBytesPerComponent),destWidth,destHeight,targetGDALType,pixelSpace,lineSpace);
bandBlue->RasterIO(GF_Read,windowX,windowY,windowWidth,windowHeight,(void*)(imageData+2*numBytesPerComponent),destWidth,destHeight,targetGDALType,pixelSpace,lineSpace);
}
}
@ -399,7 +399,7 @@ class ReaderWriterGDAL : public osgDB::ReaderWriter
if (bandAlpha)
{
// Luminance alpha
int pixelSpace=2*numBytesPerPixel;
int pixelSpace=2*numBytesPerComponent;
int lineSpace=destWidth * pixelSpace;
imageData = new unsigned char[destWidth * destHeight * pixelSpace];
@ -409,12 +409,12 @@ class ReaderWriterGDAL : public osgDB::ReaderWriter
OSG_INFO << "reading grey + alpha"<<std::endl;
bandGray->RasterIO(GF_Read,windowX,windowY,windowWidth,windowHeight,(void*)(imageData+0),destWidth,destHeight,targetGDALType,pixelSpace,lineSpace);
bandAlpha->RasterIO(GF_Read,windowX,windowY,windowWidth,windowHeight,(void*)(imageData+1*numBytesPerPixel),destWidth,destHeight,targetGDALType,pixelSpace,lineSpace);
bandAlpha->RasterIO(GF_Read,windowX,windowY,windowWidth,windowHeight,(void*)(imageData+1*numBytesPerComponent),destWidth,destHeight,targetGDALType,pixelSpace,lineSpace);
}
else
{
// Luminance map
int pixelSpace=1*numBytesPerPixel;
int pixelSpace=1*numBytesPerComponent;
int lineSpace=destWidth * pixelSpace;
imageData = new unsigned char[destWidth * destHeight * pixelSpace];
@ -429,7 +429,7 @@ class ReaderWriterGDAL : public osgDB::ReaderWriter
else if (bandAlpha)
{
// alpha map
int pixelSpace=1*numBytesPerPixel;
int pixelSpace=1*numBytesPerComponent;
int lineSpace=destWidth * pixelSpace;
imageData = new unsigned char[destWidth * destHeight * pixelSpace];
@ -444,7 +444,7 @@ class ReaderWriterGDAL : public osgDB::ReaderWriter
else if (bandPalette)
{
// Paletted map
int pixelSpace=1*numBytesPerPixel;
int pixelSpace=1*numBytesPerComponent;
int lineSpace=destWidth * pixelSpace;
unsigned char *rawImageData;
@ -454,7 +454,7 @@ class ReaderWriterGDAL : public osgDB::ReaderWriter
internalFormat = GL_RGBA;
OSG_INFO << "reading palette"<<std::endl;
OSG_INFO << "numBytesPerPixel: " << numBytesPerPixel << std::endl;
OSG_INFO << "numBytesPerComponent: " << numBytesPerComponent << std::endl;
bandPalette->RasterIO(GF_Read,windowX,windowY,windowWidth,windowHeight,(void*)(rawImageData),destWidth,destHeight,targetGDALType,pixelSpace,lineSpace);