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#include "imagetosurface.hpp"
#include <SDL_surface.h>
#include <osg/Image>
namespace SDLUtil
{
SurfaceUniquePtr imageToSurface(osg::Image* image, bool flip)
{
int width = image->s();
int height = image->t();
SDL_Surface* surface
= SDL_CreateRGBSurface(0, width, height, 32, 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF);
for (int x = 0; x < width; ++x)
for (int y = 0; y < height; ++y)
{
osg::Vec4f clr = image->getColor(x, flip ? ((height - 1) - y) : y);
int bpp = surface->format->BytesPerPixel;
Uint8* p = (Uint8*)surface->pixels + y * surface->pitch + x * bpp;
*(Uint32*)(p)
= SDL_MapRGBA(surface->format, static_cast<Uint8>(clr.r() * 255), static_cast<Uint8>(clr.g() * 255),
static_cast<Uint8>(clr.b() * 255), static_cast<Uint8>(clr.a() * 255));
}
return SurfaceUniquePtr(surface, SDL_FreeSurface);
}
}
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