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display_fbdev.h

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/*
        $Id: display_fbdev.h,v 1.2 2001/03/10 17:26:28 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.

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

#ifndef header_display_fbdev
#define header_display_fbdev

#ifdef USE_FBDEV

#include "Display/Display/Generic/displaycard_generic.h"

#include "target_fbdev.h"

#include <linux/fb.h>

class CL_FBDev_DisplayCard : public CL_DisplayCard_Generic
{
public:
        CL_FBDev_DisplayCard(int card_no);
        virtual ~CL_FBDev_DisplayCard();
        
        // CL_DisplayCard functions:
        // -------------------------

        virtual void flip_display(bool sync=false);
        virtual void put_display(const class CL_Rect &rect);
        virtual void set_palette(CL_Palette *palette);
        virtual CL_Palette *get_palette();
        virtual void set_videomode(int width, int height, int bpp, bool fullscreen, bool allow_resize, bool video_memory);
        virtual bool is_initialized();
        
        virtual std::string get_name() { return "FBDev Display"; }
        virtual const std::list<CL_VidMode*> &get_videomodes();

        // CL_DisplayCard_Generic functions:
        // ---------------------------------

        virtual void push_clip_rect() { m_clip_stack.push_front(m_cur_clip); }

        virtual void push_clip_rect(const CL_ClipRect &clip)
        {
                push_clip_rect();
                m_cur_clip = m_cur_clip.clip(clip);
                set_card_clip();
        }
        virtual void set_clip_rect(const CL_ClipRect &clip)
        {
                m_cur_clip = clip;
                set_card_clip();
        }
        virtual void pop_clip_rect()
        {
                m_cur_clip = m_clip_stack.front();
                m_clip_stack.pop_front();
                set_card_clip();
        }

        virtual CL_Target *get_target() { return m_target; }
        virtual CL_Target *get_frontbuffer() { return m_target; }
        
        virtual void fill_rect(int, int, int, int, float, float, float, float);
        virtual void draw_rect(int, int, int, int, float, float, float, float);

        virtual int get_total_memory() { return fb_fix.smem_len; }
        

        // own functions
        unsigned char* get_offscreen_mem();
        int yoffset;

        unsigned int get_virt_width();
        
        bool accel_alpha_ret() { return m_accel_alpha_rect; }
        bool accel_scale_blit() { return m_accel_scale_blit; }


protected:
        virtual CL_Blitters create_hw_blitters(CL_SurfaceProvider *provider);

private:
        void set_card_clip();

        volatile unsigned char *m_mmioaddr;
        bool doublebuffer;
        bool m_accel_alpha_rect;
        bool m_accel_scale_blit;
        fb_fix_screeninfo fb_fix;
        fb_var_screeninfo fb_var_orig;
        fb_var_screeninfo fb_var;
        unsigned char* fb_mem;
        int fd;

        
        bool m_initialized;
        CL_Palette *m_palette;
        CL_Target_FBDev *m_target;

        std::string fb_try_accel;
};

#endif /* USE_FBDEV */

#endif

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