#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif

#include <stdlib.h>

#include "glamor_priv.h"

/* Upload picture to texture.  We may need to flip the y axis or
 * wire alpha to 1. So we may conditional create fbo for the picture.
 * */
enum glamor_pixmap_status
glamor_upload_picture_to_texture(PicturePtr picture)
{
	PixmapPtr pixmap;
	glamor_pixmap_private *pixmap_priv;
	assert(picture->pDrawable);
	pixmap = glamor_get_drawable_pixmap(picture->pDrawable);
	pixmap_priv = glamor_get_pixmap_private(pixmap);

	assert(GLAMOR_PIXMAP_PRIV_IS_PICTURE(pixmap_priv) == 1);
	return glamor_upload_pixmap_to_texture(pixmap);
}


Bool
glamor_prepare_access_picture(PicturePtr picture, glamor_access_t access)
{
	if (!picture || !picture->pDrawable)
		return TRUE;

	return glamor_prepare_access(picture->pDrawable, access);
}

void
glamor_finish_access_picture(PicturePtr picture, glamor_access_t access)
{
	if (!picture || !picture->pDrawable)
		return;

	glamor_finish_access(picture->pDrawable, access);
}

/* 
 * We should already have drawable attached to it, if it has one.
 * Then set the attached pixmap to is_picture format, and set
 * the pict format.
 * */
int
glamor_create_picture(PicturePtr picture)
{
	PixmapPtr pixmap;
	glamor_pixmap_private *pixmap_priv;
	glamor_screen_private *glamor_priv;

	if (!picture || !picture->pDrawable)
		return 0;

	glamor_priv =
	    glamor_get_screen_private(picture->pDrawable->pScreen);
	pixmap = glamor_get_drawable_pixmap(picture->pDrawable);
	pixmap_priv = glamor_get_pixmap_private(pixmap);
	
	if (pixmap_priv) {
		pixmap_priv->is_picture = 1;
		pixmap_priv->pict_format = picture->format;
		/* XXX Some formats are compatible between glamor and ddx driver*/
		if (pixmap_priv->type == GLAMOR_TEXTURE_DRM
		    /*&& pixmap_priv->pict_format != PICT_b8g8r8a8*/)
			glamor_set_pixmap_type(pixmap, GLAMOR_SEPARATE_TEXTURE);
	}
	return glamor_priv->saved_create_picture(picture);
}

void
glamor_destroy_picture(PicturePtr picture)
{
	PixmapPtr pixmap;
	glamor_pixmap_private *pixmap_priv;
	glamor_screen_private *glamor_priv;

	if (!picture || !picture->pDrawable)
		return;

	glamor_priv =
	    glamor_get_screen_private(picture->pDrawable->pScreen);
	pixmap = glamor_get_drawable_pixmap(picture->pDrawable);
	pixmap_priv = glamor_get_pixmap_private(pixmap);

	if (pixmap_priv) {
		pixmap_priv->is_picture = 0;
		pixmap_priv->pict_format = 0;
	}
	glamor_priv->saved_destroy_picture(picture);
}

void
glamor_picture_format_fixup(PicturePtr picture,
			    glamor_pixmap_private * pixmap_priv)
{
	pixmap_priv->pict_format = picture->format;
}