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surfaceprovider.cpp

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/*
        $Id: surfaceprovider.cpp,v 1.1 2001/03/06 15:09:17 mbn Exp $

        ------------------------------------------------------------------------
        ClanLib, the platform independent game SDK.

        This library is distributed under the GNU LIBRARY GENERAL PUBLIC LICENSE
        version 2. See COPYING for details.

        For a total list of contributers see CREDITS.

        ------------------------------------------------------------------------
*/

#include "Core/precomp.h"
#include <API/Core/Resources/resource_manager.h>
#include <API/Display/Display/surfaceprovider.h>
#include <Display/Display/Generic/restype_surface.h>

CL_SurfaceProvider *CL_SurfaceProvider::load(
        const char *resource_id,
        CL_ResourceManager *manager)
{
        CL_WritableSurfaceResource *resource =
                (CL_WritableSurfaceResource *) manager->get_resource(resource_id);

        resource->load();

        return resource->create_provider();
}
/*
bool CL_SurfaceProvider::pixel_transparent(int x, int y) const
{
        int transcol = get_transcol();
        if (transcol == -1) return false;

        cl_assert(x>=0 && y>=0 && (unsigned int) x<get_width() && (unsigned int) y<get_height());

        int bytes_pr_pixel = get_bytes_pr_pixel();
        unsigned char *surface_data = (unsigned char *) get_data();

        unsigned char *pos = &surface_data[x*bytes_pr_pixel+y*get_pitch()];

        switch (bytes_pr_pixel)
        {
        case 1:
                return *pos == transcol;
        case 2:
                return *((unsigned short *) pos) == transcol;
        case 3:
                {
                        // This may not work at all (can't test it!)
                        unsigned long val = *((unsigned long *) pos);
                        val &= 0xffffff00;
                        return val == (unsigned long) transcol;
                }
        case 4:
                return *((unsigned long *) pos) == (unsigned long) transcol;
        default:
                cl_assert(false); // Nutty business!
                return false;
        }
}
*/

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