C++ (Cpp) grub_font_blit_glyph Examples

Example #1

File: font.c Project: hisilicon/grub

struct grub_font_glyph *
grub_font_construct_glyph (grub_font_t hinted_font,
			   const struct grub_unicode_glyph *glyph_id)
{
  struct grub_font_glyph *main_glyph;
  struct grub_video_signed_rect bounds;
  struct grub_font_glyph *glyph;
  struct grub_font_glyph **combining_glyphs;

  main_glyph = grub_font_construct_dry_run (hinted_font, glyph_id,
					    &bounds, &combining_glyphs, NULL);

  if (!main_glyph)
    return grub_font_dup_glyph (unknown_glyph);

  if (!combining_glyphs)
    return grub_font_dup_glyph (main_glyph);

  glyph =
    grub_zalloc (sizeof (*glyph) + (bounds.width * bounds.height + 7) / 8);
  if (!glyph)
    {
      grub_errno = GRUB_ERR_NONE;
      return grub_font_dup_glyph (main_glyph);
    }

  glyph->font = main_glyph->font;
  glyph->width = bounds.width;
  glyph->height = bounds.height;
  glyph->offset_x = bounds.x;
  glyph->offset_y = bounds.y;

  if (glyph_id->attributes & GRUB_UNICODE_GLYPH_ATTRIBUTE_MIRROR)
    grub_font_blit_glyph_mirror (glyph, main_glyph,
				 main_glyph->offset_x - glyph->offset_x,
				 (glyph->height + glyph->offset_y)
				 - (main_glyph->height +
				    main_glyph->offset_y));
  else
    grub_font_blit_glyph (glyph, main_glyph,
			  main_glyph->offset_x - glyph->offset_x,
			  (glyph->height + glyph->offset_y)
			  - (main_glyph->height + main_glyph->offset_y));

  blit_comb (glyph_id, glyph, NULL, main_glyph, combining_glyphs, NULL);

  return glyph;
}

Example #2

File: font.c Project: Der-Jan/grub-zfs

/* Helper for blit_comb.  */
static void
do_blit (struct grub_font_glyph *src, signed dx, signed dy,
	 struct blit_comb_ctx *ctx)
{
  if (ctx->glyph)
    grub_font_blit_glyph (ctx->glyph, src, dx - ctx->glyph->offset_x,
			  (ctx->glyph->height + ctx->glyph->offset_y) + dy);
  if (dx < ctx->bounds.x)
    {
      ctx->bounds.width += ctx->bounds.x - dx;
      ctx->bounds.x = dx;
    }
  if (ctx->bounds.y > -src->height - dy)
    {
      ctx->bounds.height += ctx->bounds.y - (-src->height - dy);
      ctx->bounds.y = (-src->height - dy);
    }
  if (dx + src->width - ctx->bounds.x >= (signed) ctx->bounds.width)
    ctx->bounds.width = dx + src->width - ctx->bounds.x + 1;
  if ((signed) ctx->bounds.height < src->height + (-src->height - dy)
      - ctx->bounds.y)
    ctx->bounds.height = src->height + (-src->height - dy) - ctx->bounds.y;
}

Example #3

File: font.c Project: Der-Jan/grub-zfs

struct grub_font_glyph *
grub_font_construct_glyph (grub_font_t hinted_font,
			   const struct grub_unicode_glyph *glyph_id)
{
  struct grub_font_glyph *main_glyph;
  struct grub_video_signed_rect bounds;
  static struct grub_font_glyph *glyph = 0;
  static grub_size_t max_glyph_size = 0;

  ensure_comb_space (glyph_id);

  main_glyph = grub_font_construct_dry_run (hinted_font, glyph_id,
					    &bounds, render_combining_glyphs,
					    NULL);

  if (!main_glyph)
    return unknown_glyph;

  if (!render_combining_glyphs && glyph_id->ncomb)
    return main_glyph;

  if (!glyph_id->ncomb && !glyph_id->attributes)
    return main_glyph;

  if (max_glyph_size < sizeof (*glyph) + (bounds.width * bounds.height + GRUB_CHAR_BIT - 1) / GRUB_CHAR_BIT)
    {
      grub_free (glyph);
      max_glyph_size = (sizeof (*glyph) + (bounds.width * bounds.height + GRUB_CHAR_BIT - 1) / GRUB_CHAR_BIT) * 2;
      if (max_glyph_size < 8)
	max_glyph_size = 8;
      glyph = grub_malloc (max_glyph_size);
    }
  if (!glyph)
    {
      grub_errno = GRUB_ERR_NONE;
      return main_glyph;
    }

  grub_memset (glyph, 0, sizeof (*glyph)
	       + (bounds.width * bounds.height
		  + GRUB_CHAR_BIT - 1) / GRUB_CHAR_BIT);

  glyph->font = main_glyph->font;
  glyph->width = bounds.width;
  glyph->height = bounds.height;
  glyph->offset_x = bounds.x;
  glyph->offset_y = bounds.y;

  if (glyph_id->attributes & GRUB_UNICODE_GLYPH_ATTRIBUTE_MIRROR)
    grub_font_blit_glyph_mirror (glyph, main_glyph,
				 main_glyph->offset_x - glyph->offset_x,
				 (glyph->height + glyph->offset_y)
				 - (main_glyph->height +
				    main_glyph->offset_y));
  else
    grub_font_blit_glyph (glyph, main_glyph,
			  main_glyph->offset_x - glyph->offset_x,
			  (glyph->height + glyph->offset_y)
			  - (main_glyph->height + main_glyph->offset_y));

  blit_comb (glyph_id, glyph, NULL, main_glyph, render_combining_glyphs, NULL);

  return glyph;
}