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#include "Raster.h"
#include "FreeImage.h"
namespace CELL
{
Image* Image::loadFromFile(const char* fileName)
{
//1 获取图片格式
FREE_IMAGE_FORMAT fifmt = FreeImage_GetFileType(fileName, 0);
if (fifmt == FIF_UNKNOWN)
{
return 0;
}
//2 加载图片
FIBITMAP *dib = FreeImage_Load(fifmt, fileName,0);
FREE_IMAGE_COLOR_TYPE type = FreeImage_GetColorType(dib);
//! 获取数据指针
FIBITMAP* temp = dib;
dib = FreeImage_ConvertTo32Bits(dib);
FreeImage_Unload(temp);
BYTE* pixels = (BYTE*)FreeImage_GetBits(dib);
int width = FreeImage_GetWidth(dib);
int height = FreeImage_GetHeight(dib);
int pitch = width*4;
BYTE* row = new BYTE[width*4];
for(int j = 0; j < height / 2; j++)
{
memcpy(row,pixels + j * pitch,pitch );
memcpy(pixels + j * pitch,pixels + (height - j - 1) * pitch,pitch );
memcpy(pixels + (height - j - 1) * pitch,row,pitch );
}
delete []row;
Image* image = new Image(width,height,pixels);
FreeImage_Unload(dib);
return image;
}
Raster::Raster( int w,int h,void* buffer )
{
_texture = 0;
_width = w;
_height = h;
_buffer = (uint*)buffer;
memset(&_poitionPointer,0, sizeof(_poitionPointer));
memset(&_colorPointer, 0, sizeof(_colorPointer));
memset(&_uvPointer, 0, sizeof(_uvPointer));
_defaultColorPointer._size = 4;
_defaultColorPointer._type = DT_BYTE;
_defaultColorPointer._stride= sizeof(Rgba);
_defaultColorPointer._data = _defaultColorArray;
_defaultUVPointer._size = 2;
_defaultUVPointer._type = DT_FLOAT;
_defaultUVPointer._stride = sizeof(float2);
_defaultUVPointer._data = _detaultUVArray;
}
Raster::~Raster( void )
{
}
void Raster::clear()
{
memset(_buffer,0,_width * _height * sizeof(Rgba));
}
}