twin_pixmap_t *
twin_pixmap_create (twin_format_t format,
twin_coord_t width,
twin_coord_t height)
{
twin_coord_t stride = twin_bytes_per_pixel (format) * width;
twin_area_t space = (twin_area_t) stride * height;
twin_area_t size = sizeof (twin_pixmap_t) + space;
twin_pixmap_t *pixmap = malloc (size);
if (!pixmap)
return 0;
pixmap->screen = 0;
pixmap->up = 0;
pixmap->down = 0;
pixmap->x = pixmap->y = 0;
pixmap->format = format;
pixmap->width = width;
pixmap->height = height;
twin_matrix_identity(&pixmap->transform);
pixmap->clip.left = pixmap->clip.top = 0;
pixmap->clip.right = pixmap->width;
pixmap->clip.bottom = pixmap->height;
pixmap->origin_x = pixmap->origin_y = 0;
pixmap->stride = stride;
pixmap->disable = 0;
pixmap->p.v = pixmap + 1;
memset (pixmap->p.v, '\0', space);
return pixmap;
}
twin_pixmap_t *
twin_pixmap_create_const (twin_format_t format,
twin_coord_t width,
twin_coord_t height,
twin_coord_t stride,
twin_pointer_t pixels)
{
twin_pixmap_t *pixmap = malloc (sizeof (twin_pixmap_t));
if (!pixmap)
return 0;
pixmap->screen = 0;
pixmap->up = 0;
pixmap->down = 0;
pixmap->x = pixmap->y = 0;
pixmap->format = format;
pixmap->width = width;
pixmap->height = height;
twin_matrix_identity(&pixmap->transform);
pixmap->clip.left = pixmap->clip.top = 0;
pixmap->clip.right = pixmap->width;
pixmap->clip.bottom = pixmap->height;
pixmap->origin_x = pixmap->origin_y = 0;
pixmap->stride = stride;
pixmap->disable = 0;
pixmap->p = pixels;
return pixmap;
}
twin_path_t *
twin_path_create (void)
{
twin_path_t *path;
path = malloc (sizeof (twin_path_t));
path->npoints = path->size_points = 0;
path->nsublen = path->size_sublen = 0;
path->points = 0;
path->sublen = 0;
twin_matrix_identity (&path->state.matrix);
path->state.font_size = TWIN_FIXED_ONE * 15;
path->state.font_style = TWIN_TEXT_ROMAN;
path->state.cap_style = TwinCapRound;
return path;
}
void
twin_path_identity (twin_path_t *path)
{
twin_matrix_identity (&path->state.matrix);
}