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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2006,2007,2008,2009 Free Software Foundation, Inc.
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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#include <grub/term.h>
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#include <grub/types.h>
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#include <grub/misc.h>
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#include <grub/font.h>
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#include <grub/video.h>
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#include <grub/gfxterm.h>
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#include <grub/bitmap.h>
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#include <grub/command.h>
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#include <grub/extcmd.h>
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#include <grub/bitmap_scale.h>
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#include <grub/i18n.h>
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#define DEFAULT_VIDEO_MODE "auto"
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#define DEFAULT_BORDER_WIDTH 10
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#define DEFAULT_STANDARD_COLOR 0x07
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struct grub_dirty_region
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struct grub_colored_char
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/* An Unicode codepoint. */
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struct grub_unicode_glyph *code;
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grub_video_color_t fg_color;
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grub_video_color_t bg_color;
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/* The width of this character minus one. */
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/* The column index of this character. */
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struct grub_virtual_screen
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/* Dimensions of the virtual screen in pixels. */
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/* Offset in the display in pixels. */
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unsigned int offset_x;
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unsigned int offset_y;
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/* TTY Character sizes in pixes. */
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unsigned int normal_char_width;
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unsigned int normal_char_height;
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/* Virtual screen TTY size in characters. */
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/* Current cursor location in characters. */
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unsigned int cursor_x;
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unsigned int cursor_y;
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/* Current cursor state. */
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/* Terminal color settings. */
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grub_uint8_t standard_color_setting;
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grub_uint8_t term_color;
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grub_video_color_t fg_color;
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grub_video_color_t bg_color;
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grub_video_color_t bg_color_display;
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/* Text buffer for virtual screen. Contains (columns * rows) number
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struct grub_colored_char *text_buffer;
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struct grub_gfxterm_window
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static struct grub_video_render_target *render_target;
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void (*grub_gfxterm_decorator_hook) (void) = NULL;
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static struct grub_gfxterm_window window;
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static struct grub_virtual_screen virtual_screen;
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static grub_gfxterm_repaint_callback_t repaint_callback;
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static int repaint_scheduled = 0;
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static int repaint_was_scheduled = 0;
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static void destroy_window (void);
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static struct grub_video_render_target *text_layer;
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static unsigned int bitmap_width;
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static unsigned int bitmap_height;
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static struct grub_video_bitmap *bitmap;
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static struct grub_dirty_region dirty_region;
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static void dirty_region_reset (void);
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static int dirty_region_is_empty (void);
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static void dirty_region_add (int x, int y,
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unsigned int width, unsigned int height);
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static unsigned int calculate_normal_character_width (grub_font_t font);
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static unsigned char calculate_character_width (struct grub_font_glyph *glyph);
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static void grub_gfxterm_refresh (struct grub_term_output *term __attribute__ ((unused)));
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grub_gfxterm_getcharwidth (struct grub_term_output *term __attribute__ ((unused)),
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const struct grub_unicode_glyph *c);
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set_term_color (grub_uint8_t term_color)
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struct grub_video_render_target *old_target;
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/* Save previous target and switch to text layer. */
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grub_video_get_active_render_target (&old_target);
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grub_video_set_active_render_target (text_layer);
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/* Map terminal color to text layer compatible video colors. */
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virtual_screen.fg_color = grub_video_map_color(term_color & 0x0f);
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/* Special case: use black as transparent color. */
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if (((term_color >> 4) & 0x0f) == 0)
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virtual_screen.bg_color = grub_video_map_rgba(0, 0, 0, 0);
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virtual_screen.bg_color = grub_video_map_color((term_color >> 4) & 0x0f);
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/* Restore previous target. */
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grub_video_set_active_render_target (old_target);
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clear_char (struct grub_colored_char *c)
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c->code = grub_unicode_glyph_from_code (' ');
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grub_errno = GRUB_ERR_NONE;
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c->fg_color = virtual_screen.fg_color;
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c->bg_color = virtual_screen.bg_color;
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grub_virtual_screen_free (void)
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/* If virtual screen has been allocated, free it. */
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if (virtual_screen.text_buffer != 0)
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grub_free (virtual_screen.text_buffer);
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/* Reset virtual screen data. */
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grub_memset (&virtual_screen, 0, sizeof (virtual_screen));
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/* Free render targets. */
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grub_video_delete_render_target (text_layer);
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grub_virtual_screen_setup (unsigned int x, unsigned int y,
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unsigned int width, unsigned int height,
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const char *font_name)
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/* Free old virtual screen. */
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grub_virtual_screen_free ();
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/* Initialize with default data. */
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virtual_screen.font = grub_font_get (font_name);
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if (!virtual_screen.font)
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return grub_error (GRUB_ERR_BAD_FONT,
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virtual_screen.width = width;
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virtual_screen.height = height;
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virtual_screen.offset_x = x;
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virtual_screen.offset_y = y;
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virtual_screen.normal_char_width =
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calculate_normal_character_width (virtual_screen.font);
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virtual_screen.normal_char_height =
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grub_font_get_max_char_height (virtual_screen.font);
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virtual_screen.cursor_x = 0;
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virtual_screen.cursor_y = 0;
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virtual_screen.cursor_state = 1;
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virtual_screen.total_scroll = 0;
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/* Calculate size of text buffer. */
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virtual_screen.columns = virtual_screen.width / virtual_screen.normal_char_width;
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virtual_screen.rows = virtual_screen.height / virtual_screen.normal_char_height;
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/* Allocate memory for text buffer. */
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virtual_screen.text_buffer =
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(struct grub_colored_char *) grub_malloc (virtual_screen.columns
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* virtual_screen.rows
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* sizeof (*virtual_screen.text_buffer));
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if (grub_errno != GRUB_ERR_NONE)
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/* Create new render target for text layer. */
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grub_video_create_render_target (&text_layer,
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virtual_screen.width,
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virtual_screen.height,
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GRUB_VIDEO_MODE_TYPE_RGB
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| GRUB_VIDEO_MODE_TYPE_ALPHA);
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if (grub_errno != GRUB_ERR_NONE)
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/* As we want to have colors compatible with rendering target,
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we can only have those after mode is initialized. */
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grub_video_set_active_render_target (text_layer);
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virtual_screen.standard_color_setting = DEFAULT_STANDARD_COLOR;
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virtual_screen.term_color = GRUB_TERM_DEFAULT_NORMAL_COLOR;
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set_term_color (virtual_screen.term_color);
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grub_video_set_active_render_target (render_target);
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virtual_screen.bg_color_display = grub_video_map_rgba(0, 0, 0, 0);
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/* Clear out text buffer. */
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for (i = 0; i < virtual_screen.columns * virtual_screen.rows; i++)
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virtual_screen.text_buffer[i].code = 0;
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clear_char (&(virtual_screen.text_buffer[i]));
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grub_gfxterm_schedule_repaint (void)
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repaint_scheduled = 1;
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grub_gfxterm_set_window (struct grub_video_render_target *target,
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int x, int y, int width, int height,
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const char *font_name, int border_width)
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/* Clean up any prior instance. */
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/* Set the render target. */
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render_target = target;
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/* Create virtual screen. */
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if (grub_virtual_screen_setup (border_width, border_width,
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width - 2 * border_width,
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height - 2 * border_width,
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/* Set window bounds. */
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window.width = width;
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window.height = height;
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window.double_repaint = double_repaint;
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dirty_region_reset ();
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grub_gfxterm_schedule_repaint ();
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grub_gfxterm_fullscreen (void)
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const char *font_name;
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struct grub_video_mode_info mode_info;
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grub_video_color_t color;
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err = grub_video_get_info (&mode_info);
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/* Figure out what mode we ended up. */
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grub_video_set_active_render_target (GRUB_VIDEO_RENDER_TARGET_DISPLAY);
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double_redraw = mode_info.mode_type & GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED
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&& !(mode_info.mode_type & GRUB_VIDEO_MODE_TYPE_UPDATING_SWAP);
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/* Make sure screen is black. */
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color = grub_video_map_rgb (0, 0, 0);
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grub_video_fill_rect (color, 0, 0, mode_info.width, mode_info.height);
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grub_video_swap_buffers ();
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grub_video_fill_rect (color, 0, 0, mode_info.width, mode_info.height);
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/* Select the font to use. */
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font_name = grub_env_get ("gfxterm_font");
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font_name = ""; /* Allow fallback to any font. */
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grub_gfxterm_decorator_hook = NULL;
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return grub_gfxterm_set_window (GRUB_VIDEO_RENDER_TARGET_DISPLAY,
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0, 0, mode_info.width, mode_info.height,
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font_name, DEFAULT_BORDER_WIDTH);
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grub_gfxterm_term_init (struct grub_term_output *term __attribute__ ((unused)))
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/* Parse gfxmode environment variable if set. */
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modevar = grub_env_get ("gfxmode");
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if (! modevar || *modevar == 0)
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err = grub_video_set_mode (DEFAULT_VIDEO_MODE,
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GRUB_VIDEO_MODE_TYPE_PURE_TEXT, 0);
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tmp = grub_xasprintf ("%s;" DEFAULT_VIDEO_MODE, modevar);
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err = grub_video_set_mode (tmp, GRUB_VIDEO_MODE_TYPE_PURE_TEXT, 0);
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err = grub_gfxterm_fullscreen ();
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grub_video_restore ();
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destroy_window (void)
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grub_video_bitmap_destroy (bitmap);
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repaint_callback = 0;
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grub_virtual_screen_free ();
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grub_gfxterm_term_fini (struct grub_term_output *term __attribute__ ((unused)))
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grub_video_restore ();
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/* Clear error state. */
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grub_errno = GRUB_ERR_NONE;
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return GRUB_ERR_NONE;
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redraw_screen_rect (unsigned int x, unsigned int y,
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unsigned int width, unsigned int height)
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grub_video_color_t color;
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grub_video_rect_t saved_view;
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grub_video_set_active_render_target (render_target);
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/* Save viewport and set it to our window. */
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grub_video_get_viewport ((unsigned *) &saved_view.x,
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(unsigned *) &saved_view.y,
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(unsigned *) &saved_view.width,
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(unsigned *) &saved_view.height);
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grub_video_set_viewport (window.x, window.y, window.width, window.height);
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/* Render bitmap as background. */
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grub_video_blit_bitmap (bitmap, GRUB_VIDEO_BLIT_REPLACE, x, y,
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/* If bitmap is smaller than requested blit area, use background
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color = virtual_screen.bg_color_display;
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/* Fill right side of the bitmap if needed. */
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if ((x + width >= bitmap_width) && (y < bitmap_height))
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int w = (x + width) - bitmap_width;
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if (y + height >= bitmap_height)
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h = bitmap_height - y;
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if (bitmap_width > tx)
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/* Render background layer. */
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grub_video_fill_rect (color, tx, y, w, h);
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/* Fill bottom side of the bitmap if needed. */
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if (y + height >= bitmap_height)
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int h = (y + height) - bitmap_height;
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if (bitmap_height > ty)
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/* Render background layer. */
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grub_video_fill_rect (color, x, ty, width, h);
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/* Render text layer as blended. */
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grub_video_blit_render_target (text_layer, GRUB_VIDEO_BLIT_BLEND, x, y,
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x - virtual_screen.offset_x,
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y - virtual_screen.offset_y,
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/* Render background layer. */
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color = virtual_screen.bg_color_display;
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grub_video_fill_rect (color, x, y, width, height);
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/* Render text layer as replaced (to get texts background color). */
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grub_video_blit_render_target (text_layer, GRUB_VIDEO_BLIT_REPLACE, x, y,
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x - virtual_screen.offset_x,
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y - virtual_screen.offset_y,
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/* Restore saved viewport. */
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grub_video_set_viewport (saved_view.x, saved_view.y,
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saved_view.width, saved_view.height);
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grub_video_set_active_render_target (render_target);
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if (repaint_callback)
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repaint_callback (x, y, width, height);
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dirty_region_reset (void)
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dirty_region.top_left_x = -1;
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dirty_region.top_left_y = -1;
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dirty_region.bottom_right_x = -1;
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dirty_region.bottom_right_y = -1;
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repaint_was_scheduled = 0;
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dirty_region_is_empty (void)
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if ((dirty_region.top_left_x == -1)
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|| (dirty_region.top_left_y == -1)
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|| (dirty_region.bottom_right_x == -1)
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|| (dirty_region.bottom_right_y == -1))
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dirty_region_add (int x, int y, unsigned int width, unsigned int height)
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if ((width == 0) || (height == 0))
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if (repaint_scheduled)
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x = virtual_screen.offset_x;
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y = virtual_screen.offset_y;
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width = virtual_screen.width;
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height = virtual_screen.height;
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repaint_scheduled = 0;
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repaint_was_scheduled = 1;
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if (dirty_region_is_empty ())
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dirty_region.top_left_x = x;
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dirty_region.top_left_y = y;
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dirty_region.bottom_right_x = x + width - 1;
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dirty_region.bottom_right_y = y + height - 1;
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if (x < dirty_region.top_left_x)
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dirty_region.top_left_x = x;
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if (y < dirty_region.top_left_y)
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dirty_region.top_left_y = y;
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if ((x + (int)width - 1) > dirty_region.bottom_right_x)
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dirty_region.bottom_right_x = x + width - 1;
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if ((y + (int)height - 1) > dirty_region.bottom_right_y)
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dirty_region.bottom_right_y = y + height - 1;
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dirty_region_add_virtualscreen (void)
566
/* Mark virtual screen as dirty. */
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dirty_region_add (virtual_screen.offset_x, virtual_screen.offset_y,
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virtual_screen.width, virtual_screen.height);
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dirty_region_redraw (void)
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if (dirty_region_is_empty ())
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x = dirty_region.top_left_x;
584
y = dirty_region.top_left_y;
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width = dirty_region.bottom_right_x - x + 1;
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height = dirty_region.bottom_right_y - y + 1;
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if (repaint_was_scheduled && grub_gfxterm_decorator_hook)
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grub_gfxterm_decorator_hook ();
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redraw_screen_rect (x, y, width, height);
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paint_char (unsigned cx, unsigned cy)
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struct grub_colored_char *p;
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struct grub_font_glyph *glyph;
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grub_video_color_t color;
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grub_video_color_t bgcolor;
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if (cy + virtual_screen.total_scroll >= virtual_screen.rows)
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/* Find out active character. */
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p = (virtual_screen.text_buffer
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+ cx + (cy * virtual_screen.columns));
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/* Get glyph for character. */
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glyph = grub_font_construct_glyph (virtual_screen.font, p->code);
621
grub_errno = GRUB_ERR_NONE;
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ascent = grub_font_get_ascent (virtual_screen.font);
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width = virtual_screen.normal_char_width * calculate_character_width(glyph);
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height = virtual_screen.normal_char_height;
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bgcolor = p->bg_color;
632
x = cx * virtual_screen.normal_char_width;
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y = (cy + virtual_screen.total_scroll) * virtual_screen.normal_char_height;
635
/* Render glyph to text layer. */
636
grub_video_set_active_render_target (text_layer);
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grub_video_fill_rect (bgcolor, x, y, width, height);
638
grub_font_draw_glyph (glyph, color, x, y + ascent);
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grub_video_set_active_render_target (render_target);
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/* Mark character to be drawn. */
642
dirty_region_add (virtual_screen.offset_x + x, virtual_screen.offset_y + y,
650
paint_char (virtual_screen.cursor_x, virtual_screen.cursor_y);
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draw_cursor (int show)
660
grub_video_color_t color;
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if (virtual_screen.cursor_y + virtual_screen.total_scroll
668
>= virtual_screen.rows)
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/* Determine cursor properties and position on text layer. */
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x = virtual_screen.cursor_x * virtual_screen.normal_char_width;
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width = virtual_screen.normal_char_width;
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color = virtual_screen.fg_color;
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y = ((virtual_screen.cursor_y + virtual_screen.total_scroll)
676
* virtual_screen.normal_char_height
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+ grub_font_get_ascent (virtual_screen.font));
680
/* Render cursor to text layer. */
681
grub_video_set_active_render_target (text_layer);
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grub_video_fill_rect (color, x, y, width, height);
683
grub_video_set_active_render_target (render_target);
685
/* Mark cursor to be redrawn. */
686
dirty_region_add (virtual_screen.offset_x + x,
687
virtual_screen.offset_y + y,
694
unsigned int i, j, was_scroll;
695
grub_video_color_t color;
697
if (!virtual_screen.total_scroll)
700
/* If we have bitmap, re-draw screen, otherwise scroll physical screen too. */
703
/* Scroll physical screen. */
704
grub_video_set_active_render_target (text_layer);
705
color = virtual_screen.bg_color;
706
grub_video_scroll (color, 0, -virtual_screen.normal_char_height
707
* virtual_screen.total_scroll);
709
/* Mark virtual screen to be redrawn. */
710
dirty_region_add_virtualscreen ();
714
grub_video_rect_t saved_view;
719
grub_video_set_active_render_target (render_target);
721
i = window.double_repaint ? 2 : 1;
723
color = virtual_screen.bg_color;
727
/* Save viewport and set it to our window. */
728
grub_video_get_viewport ((unsigned *) &saved_view.x,
729
(unsigned *) &saved_view.y,
730
(unsigned *) &saved_view.width,
731
(unsigned *) &saved_view.height);
733
grub_video_set_viewport (window.x, window.y, window.width,
736
/* Clear new border area. */
737
grub_video_fill_rect (color,
738
virtual_screen.offset_x,
739
virtual_screen.offset_y,
740
virtual_screen.width,
741
virtual_screen.normal_char_height
742
* virtual_screen.total_scroll);
744
grub_video_set_active_render_target (render_target);
745
dirty_region_redraw ();
747
/* Scroll physical screen. */
748
grub_video_scroll (color, 0, -virtual_screen.normal_char_height
749
* virtual_screen.total_scroll);
751
/* Restore saved viewport. */
752
grub_video_set_viewport (saved_view.x, saved_view.y,
753
saved_view.width, saved_view.height);
756
grub_video_swap_buffers ();
758
dirty_region_reset ();
760
/* Scroll physical screen. */
761
grub_video_set_active_render_target (text_layer);
762
color = virtual_screen.bg_color;
763
grub_video_scroll (color, 0, -virtual_screen.normal_char_height
764
* virtual_screen.total_scroll);
766
grub_video_set_active_render_target (render_target);
770
was_scroll = virtual_screen.total_scroll;
771
virtual_screen.total_scroll = 0;
773
if (was_scroll > virtual_screen.rows)
774
was_scroll = virtual_screen.rows;
776
/* Draw shadow part. */
777
for (i = virtual_screen.rows - was_scroll;
778
i < virtual_screen.rows; i++)
779
for (j = 0; j < virtual_screen.columns; j++)
782
/* Draw cursor if visible. */
783
if (virtual_screen.cursor_state)
786
if (repaint_callback)
787
repaint_callback (window.x, window.y, window.width, window.height);
795
/* Clear first line in text buffer. */
797
i < virtual_screen.columns;
800
virtual_screen.text_buffer[i].code = 0;
801
clear_char (&(virtual_screen.text_buffer[i]));
804
/* Scroll text buffer with one line to up. */
805
grub_memmove (virtual_screen.text_buffer,
806
virtual_screen.text_buffer + virtual_screen.columns,
807
sizeof (*virtual_screen.text_buffer)
808
* virtual_screen.columns
809
* (virtual_screen.rows - 1));
811
/* Clear last line in text buffer. */
812
for (i = virtual_screen.columns * (virtual_screen.rows - 1);
813
i < virtual_screen.columns * virtual_screen.rows;
816
virtual_screen.text_buffer[i].code = 0;
817
clear_char (&(virtual_screen.text_buffer[i]));
820
virtual_screen.total_scroll++;
824
grub_gfxterm_putchar (struct grub_term_output *term,
825
const struct grub_unicode_glyph *c)
831
/* Erase current cursor, if any. */
832
if (virtual_screen.cursor_state)
835
if (c->base == '\b' || c->base == '\n' || c->base == '\r')
840
if (virtual_screen.cursor_x > 0)
841
virtual_screen.cursor_x--;
845
if (virtual_screen.cursor_y >= virtual_screen.rows - 1)
848
virtual_screen.cursor_y++;
852
virtual_screen.cursor_x = 0;
858
struct grub_colored_char *p;
859
unsigned char char_width;
861
/* Calculate actual character width for glyph. This is number of
862
times of normal_font_width. */
863
char_width = grub_gfxterm_getcharwidth (term, c);
865
/* If we are about to exceed line length, wrap to next line. */
866
if (virtual_screen.cursor_x + char_width > virtual_screen.columns)
868
if (virtual_screen.cursor_y >= virtual_screen.rows - 1)
871
virtual_screen.cursor_y++;
874
/* Find position on virtual screen, and fill information. */
875
p = (virtual_screen.text_buffer +
876
virtual_screen.cursor_x +
877
virtual_screen.cursor_y * virtual_screen.columns);
879
p->code = grub_unicode_glyph_dup (c);
881
grub_errno = GRUB_ERR_NONE;
882
p->fg_color = virtual_screen.fg_color;
883
p->bg_color = virtual_screen.bg_color;
884
p->width = char_width - 1;
887
/* If we have large glyph, add fixup info. */
892
for (i = 1; i < char_width; i++)
894
grub_free (p[i].code);
895
p[i].code = grub_unicode_glyph_from_code (' ');
897
grub_errno = GRUB_ERR_NONE;
898
p[i].width = char_width - 1;
906
/* Make sure we scroll screen when needed and wrap line correctly. */
907
virtual_screen.cursor_x += char_width;
908
if (virtual_screen.cursor_x >= virtual_screen.columns)
910
virtual_screen.cursor_x = 0;
912
if (virtual_screen.cursor_y >= virtual_screen.rows - 1)
915
virtual_screen.cursor_y++;
919
/* Redraw cursor if it should be visible. */
920
/* Note: This will redraw the character as well, which means that the
921
above call to write_char is redundant when the cursor is showing. */
922
if (virtual_screen.cursor_state)
926
/* Use ASCII characters to determine normal character width. */
928
calculate_normal_character_width (grub_font_t font)
930
struct grub_font_glyph *glyph;
931
unsigned int width = 0;
934
/* Get properties of every printable ASCII character. */
935
for (i = 32; i < 127; i++)
937
glyph = grub_font_get_glyph (font, i);
939
/* Skip unknown characters. Should never happen on normal conditions. */
943
if (glyph->device_width > width)
944
width = glyph->device_width;
951
calculate_character_width (struct grub_font_glyph *glyph)
953
if (! glyph || glyph->device_width == 0)
956
return (glyph->device_width
957
+ (virtual_screen.normal_char_width - 1))
958
/ virtual_screen.normal_char_width;
962
grub_gfxterm_getcharwidth (struct grub_term_output *term __attribute__ ((unused)),
963
const struct grub_unicode_glyph *c)
966
dev_width = grub_font_get_constructed_device_width (virtual_screen.font, c);
971
return (dev_width + (virtual_screen.normal_char_width - 1))
972
/ virtual_screen.normal_char_width;
976
grub_virtual_screen_getwh (struct grub_term_output *term __attribute__ ((unused)))
978
return (virtual_screen.columns << 8) | virtual_screen.rows;
982
grub_virtual_screen_getxy (struct grub_term_output *term __attribute__ ((unused)))
984
return ((virtual_screen.cursor_x << 8) | virtual_screen.cursor_y);
988
grub_gfxterm_gotoxy (struct grub_term_output *term __attribute__ ((unused)),
989
grub_uint8_t x, grub_uint8_t y)
991
if (x >= virtual_screen.columns)
992
x = virtual_screen.columns - 1;
994
if (y >= virtual_screen.rows)
995
y = virtual_screen.rows - 1;
997
/* Erase current cursor, if any. */
998
if (virtual_screen.cursor_state)
1001
virtual_screen.cursor_x = x;
1002
virtual_screen.cursor_y = y;
1004
/* Draw cursor if visible. */
1005
if (virtual_screen.cursor_state)
1010
grub_virtual_screen_cls (struct grub_term_output *term __attribute__ ((unused)))
1014
for (i = 0; i < virtual_screen.columns * virtual_screen.rows; i++)
1015
clear_char (&(virtual_screen.text_buffer[i]));
1017
virtual_screen.cursor_x = virtual_screen.cursor_y = 0;
1021
grub_gfxterm_cls (struct grub_term_output *term)
1023
grub_video_color_t color;
1025
/* Clear virtual screen. */
1026
grub_virtual_screen_cls (term);
1028
/* Clear text layer. */
1029
grub_video_set_active_render_target (text_layer);
1030
color = virtual_screen.bg_color;
1031
grub_video_fill_rect (color, 0, 0,
1032
virtual_screen.width, virtual_screen.height);
1033
grub_video_set_active_render_target (render_target);
1035
/* Mark virtual screen to be redrawn. */
1036
dirty_region_add_virtualscreen ();
1038
grub_gfxterm_refresh (term);
1042
grub_virtual_screen_setcolorstate (struct grub_term_output *term,
1043
grub_term_color_state state)
1047
case GRUB_TERM_COLOR_STANDARD:
1048
virtual_screen.term_color = virtual_screen.standard_color_setting;
1051
case GRUB_TERM_COLOR_NORMAL:
1052
virtual_screen.term_color = term->normal_color;
1055
case GRUB_TERM_COLOR_HIGHLIGHT:
1056
virtual_screen.term_color = term->highlight_color;
1063
/* Change color to virtual terminal. */
1064
set_term_color (virtual_screen.term_color);
1068
grub_gfxterm_setcursor (struct grub_term_output *term __attribute__ ((unused)),
1071
if (virtual_screen.cursor_state != on)
1073
if (virtual_screen.cursor_state)
1078
virtual_screen.cursor_state = on;
1083
grub_gfxterm_refresh (struct grub_term_output *term __attribute__ ((unused)))
1087
/* Redraw only changed regions. */
1088
dirty_region_redraw ();
1090
grub_video_swap_buffers ();
1092
if (window.double_repaint)
1093
dirty_region_redraw ();
1094
dirty_region_reset ();
1098
grub_gfxterm_set_repaint_callback (grub_gfxterm_repaint_callback_t func)
1100
repaint_callback = func;
1103
/* Option array indices. */
1104
#define BACKGROUND_CMD_ARGINDEX_MODE 0
1106
static const struct grub_arg_option background_image_cmd_options[] =
1108
{"mode", 'm', 0, "Background image mode.", "stretch|normal",
1114
grub_gfxterm_background_image_cmd (grub_extcmd_t cmd __attribute__ ((unused)),
1118
struct grub_arg_list *state = cmd->state;
1120
/* Check that we have video adapter active. */
1121
if (grub_video_get_info(NULL) != GRUB_ERR_NONE)
1124
/* Destroy existing background bitmap if loaded. */
1127
grub_video_bitmap_destroy (bitmap);
1130
/* Mark whole screen as dirty. */
1131
dirty_region_add (0, 0, window.width, window.height);
1134
/* If filename was provided, try to load that. */
1137
/* Try to load new one. */
1138
grub_video_bitmap_load (&bitmap, args[0]);
1139
if (grub_errno != GRUB_ERR_NONE)
1142
/* Determine if the bitmap should be scaled to fit the screen. */
1143
if (!state[BACKGROUND_CMD_ARGINDEX_MODE].set
1144
|| grub_strcmp (state[BACKGROUND_CMD_ARGINDEX_MODE].arg,
1147
if (window.width != grub_video_bitmap_get_width (bitmap)
1148
|| window.height != grub_video_bitmap_get_height (bitmap))
1150
struct grub_video_bitmap *scaled_bitmap;
1151
grub_video_bitmap_create_scaled (&scaled_bitmap,
1155
GRUB_VIDEO_BITMAP_SCALE_METHOD_BEST);
1156
if (grub_errno == GRUB_ERR_NONE)
1158
/* Replace the original bitmap with the scaled one. */
1159
grub_video_bitmap_destroy (bitmap);
1160
bitmap = scaled_bitmap;
1165
/* If bitmap was loaded correctly, display it. */
1168
/* Determine bitmap dimensions. */
1169
bitmap_width = grub_video_bitmap_get_width (bitmap);
1170
bitmap_height = grub_video_bitmap_get_height (bitmap);
1172
/* Mark whole screen as dirty. */
1173
dirty_region_add (0, 0, window.width, window.height);
1178
grub_errno = GRUB_ERR_NONE;
1182
static struct grub_term_output grub_video_term =
1185
.init = grub_gfxterm_term_init,
1186
.fini = grub_gfxterm_term_fini,
1187
.putchar = grub_gfxterm_putchar,
1188
.getcharwidth = grub_gfxterm_getcharwidth,
1189
.getwh = grub_virtual_screen_getwh,
1190
.getxy = grub_virtual_screen_getxy,
1191
.gotoxy = grub_gfxterm_gotoxy,
1192
.cls = grub_gfxterm_cls,
1193
.setcolorstate = grub_virtual_screen_setcolorstate,
1194
.setcursor = grub_gfxterm_setcursor,
1195
.refresh = grub_gfxterm_refresh,
1196
.flags = GRUB_TERM_CODE_TYPE_VISUAL_GLYPHS,
1197
.normal_color = GRUB_TERM_DEFAULT_NORMAL_COLOR,
1198
.highlight_color = GRUB_TERM_DEFAULT_HIGHLIGHT_COLOR,
1202
static grub_extcmd_t background_image_cmd_handle;
1204
GRUB_MOD_INIT(gfxterm)
1206
grub_term_register_output ("gfxterm", &grub_video_term);
1207
background_image_cmd_handle =
1208
grub_register_extcmd ("background_image",
1209
grub_gfxterm_background_image_cmd,
1210
GRUB_COMMAND_FLAG_BOTH,
1211
N_("[-m (stretch|normal)] FILE"),
1212
N_("Load background image for active terminal."),
1213
background_image_cmd_options);
1216
GRUB_MOD_FINI(gfxterm)
1218
grub_unregister_extcmd (background_image_cmd_handle);
1219
grub_term_unregister_output (&grub_video_term);
added
removed
term/gfxterm.c
