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Better to use unsigned char

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This commit is contained in:
Marco Hugentobler 2012-01-18 17:08:23 +01:00
parent 53500e77c0
commit 7747d1fdea
2 changed files with 8 additions and 8 deletions
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14
src/analysis/raster/qgsrelief.cpp
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@ -164,9 +164,9 @@ int QgsRelief::processRaster( QProgressDialog* p )
float* scanLine2 = ( float * ) CPLMalloc( sizeof( float ) * xSize );
float* scanLine3 = ( float * ) CPLMalloc( sizeof( float ) * xSize );
char* resultRedLine = ( char * ) CPLMalloc( sizeof( char ) * xSize );
char* resultGreenLine = ( char * ) CPLMalloc( sizeof( char ) * xSize );
char* resultBlueLine = ( char * ) CPLMalloc( sizeof( char ) * xSize );
unsigned char* resultRedLine = ( unsigned char * ) CPLMalloc( sizeof( unsigned char ) * xSize );
unsigned char* resultGreenLine = ( unsigned char * ) CPLMalloc( sizeof( unsigned char ) * xSize );
unsigned char* resultBlueLine = ( unsigned char * ) CPLMalloc( sizeof( unsigned char ) * xSize );
if ( p )
{
@ -278,7 +278,7 @@ int QgsRelief::processRaster( QProgressDialog* p )
}
bool QgsRelief::processNineCellWindow( float* x1, float* x2, float* x3, float* x4, float* x5, float* x6, float* x7, float* x8, float* x9,
char* red, char* green, char* blue )
unsigned char* red, unsigned char* green, unsigned char* blue )
{
//1. component: colour and hillshade from 300 degrees
int r = 0;
@ -363,9 +363,9 @@ bool QgsRelief::processNineCellWindow( float* x1, float* x2, float* x3, float* x
b = b3 * 0.1 + b * 0.9;
}
*red = ( char )r;
*green = ( char )g;
*blue = ( char )b;
*red = ( unsigned char )r;
*green = ( unsigned char )g;
*blue = ( unsigned char )b;
return true;
}

2
src/analysis/raster/qgsrelief.h
View File

@ -89,7 +89,7 @@ class ANALYSIS_EXPORT QgsRelief
QList< ReliefColor > mReliefColors;
bool processNineCellWindow( float* x1, float* x2, float* x3, float* x4, float* x5, float* x6, float* x7, float* x8, float* x9,
char* red, char* green, char* blue );
unsigned char* red, unsigned char* green, unsigned char* blue );
/**Opens the input file and returns the dataset handle and the number of pixels in x-/y- direction*/
GDALDatasetH openInputFile( int& nCellsX, int& nCellsY );