SDLImage.hh

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#ifndef SDLIMAGE_HH
#define SDLIMAGE_HH
 
#include "BaseImage.hh"
#include "SDLSurfacePtr.hh"
#include <span>
#include <string>
 
namespace openmsx {
 
class SDLImage final : public BaseImage
{
public:
        SDLImage(OutputSurface& output, const std::string& filename);
        SDLImage(OutputSurface& output, SDLSurfacePtr image);
        SDLImage(OutputSurface& output, const std::string& filename, float scaleFactor);
        SDLImage(OutputSurface& output, const std::string& filename, gl::ivec2 size);
        SDLImage(OutputSurface& output, gl::ivec2 size, unsigned rgba);
        SDLImage(OutputSurface& output, gl::ivec2 size, std::span<const unsigned, 4> rgba,
                 unsigned borderSize, unsigned borderRGBA);
 
        void draw(OutputSurface& output, gl::ivec2 pos,
                  uint8_t r, uint8_t g, uint8_t b, uint8_t alpha) override;
 
private:
        [[nodiscard]] SDLTexturePtr toTexture(OutputSurface& output, SDL_Surface& surface);
        [[nodiscard]] SDLTexturePtr loadImage(OutputSurface& output, const std::string& filename);
        void initSolid(OutputSurface& output, gl::ivec2 size, unsigned rgba,
                       unsigned borderSize, unsigned borderRGBA);
        void initGradient(OutputSurface& output, gl::ivec2 size, std::span<const unsigned, 4> rgba,
                          unsigned borderSize, unsigned borderRGBA);
 
private:
        SDLTexturePtr texture; // can be nullptr
        const bool flipX, flipY; // 'size' is always positive, there are true
                                 // when the original size was negative
};
 
} // namespace openmsx
 
#endif