/*
Test were run with the following script
target can be directfb_bitmap or directfb

export CAIRO_TEST_TARGET=directfb_bitmap
export DFBARGS=quiet,no-banner,no-debug,log-file=dfblog,system=x11
cd cairo/test
make check

*/

#include <stdio.h>
#include <stdlib.h>
#include "cairo-boilerplate.h"
#include <directfb.h>
#include "cairo-directfb.h"
#include "cairo-test-directfb.h"

/* macro for a safe call to DirectFB functions */
#define DFBCHECK(x...) \
{                                                                \
	err = x;                                                    \
	if (err != DFB_OK) {                                        \
		fprintf( stderr, "%s <%d>:\n\t", __FILE__, __LINE__ ); \
		DirectFBErrorFatal( #x, err );                         \
	}                                                           \
}

typedef struct _DFBInfo {
	IDirectFB              *dfb;
	IDirectFBDisplayLayer  *layer;
	IDirectFBWindow        *window;
	IDirectFBSurface       *surface;
} DFBInfo ;

static DFBInfo *init(void) {
	DFBDisplayLayerConfig        layer_config;
	DFBGraphicsDeviceDescription desc;
	int err;
	DFBInfo *info = calloc(1,sizeof(DFBInfo));
	if( !info )
		return NULL;

	DFBCHECK(DirectFBInit( NULL,NULL));
	DFBCHECK(DirectFBCreate( &info->dfb ));
	info->dfb->GetDeviceDescription(info->dfb, &desc );

	DFBCHECK(info->dfb->GetDisplayLayer( info->dfb, DLID_PRIMARY, &info->layer ));
	info->layer->SetCooperativeLevel( info->layer, DLSCL_ADMINISTRATIVE );

	if (!((desc.blitting_flags & DSBLIT_BLEND_ALPHACHANNEL) &&
				(desc.blitting_flags & DSBLIT_BLEND_COLORALPHA  )))
	{
		layer_config.flags = DLCONF_BUFFERMODE;
		layer_config.buffermode = DLBM_BACKSYSTEM;
		info->layer->SetConfiguration( info->layer, &layer_config );
	}
	return info;
}

static cairo_surface_t *
create_directfb_window_surface (DFBInfo *info,
		     cairo_content_t		  content,
		     int			  width,
		     int			  height) {
	DFBWindowDescription desc;
	int err;
	desc.flags  = ( DWDESC_POSX | DWDESC_POSY |
			DWDESC_WIDTH | DWDESC_HEIGHT /*| DWDESC_CAPS|DSDESC_PIXELFORMAT*/ );
	desc.posx   = 0;
	desc.posy   = 0;
	desc.width  = width;
	desc.height = height;
#if 0 /*Test using native format by default*/
	desc.caps =  DWCAPS_DOUBLEBUFFER;
	desc.caps |= DWCAPS_ALPHACHANNEL;
	desc.pixelformat = DSPF_ARGB;
#endif

	DFBCHECK(info->layer->CreateWindow( info->layer, &desc, &info->window ) );
	info->window->SetOpacity( info->window, 0xFF );
	info->window->GetSurface( info->window, &info->surface );
	info->surface->SetColor( info->surface, 0xFF, 0xFF, 0xFF, 0xFF );
	info->surface->FillRectangle( info->surface,0, 0, desc.width, desc.height );
	info->surface->Flip( info->surface, NULL, 0 );
	return cairo_directfb_surface_create(info->dfb,info->surface);
}

static cairo_surface_t *
create_directfb_bitmap_surface (DFBInfo *info,
		     cairo_content_t		  content,
		     int			  width,
		     int			  height) {
	int  err;
	DFBSurfaceDescription  desc;

	desc.flags = DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT;
	desc.caps = DSCAPS_NONE;
	desc.width  = width;
	desc.height = height;
	desc.pixelformat = DSPF_ARGB;
	DFBCHECK(info->dfb->CreateSurface (info->dfb, &desc,&info->surface));
	return cairo_directfb_surface_create(info->dfb,info->surface);
}

void
cleanup_directfb (void* closure) {
	DFBInfo *info = (DFBInfo *)closure;
	if( info->surface )
		info->surface->Release( info->surface );
	if( info->window )
		info->window->Release( info->window );
	if( info->layer )
		info->layer->Release( info->layer );
	if( info->dfb )
		info->dfb->Release( info->dfb );
}

cairo_surface_t *
create_directfb_surface (const char			 *name,
		     cairo_content_t		  content,
		     int			  width,
		     int			  height,
		     cairo_boilerplate_mode_t	  mode,
		     void			**closure) {
    
    DFBInfo* info= init();
    *closure = info;
    if( !info ) { 
	    CAIRO_BOILERPLATE_LOG ("Failed to init directfb:\n");
        return NULL;
    }

    if (width == 0)
	width = 1;
    if (height == 0)
	height = 1;

    if (mode == CAIRO_BOILERPLATE_MODE_TEST)
	return create_directfb_bitmap_surface (info, content, width, height);
    else /* mode == CAIRO_BOILERPLATE_MODE_PERF */
	return create_directfb_window_surface (info, content, width, height);
}