/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2006,2007,2009 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see .
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
static grub_err_t
grub_cmd_videotest (grub_command_t cmd __attribute__ ((unused)),
int argc __attribute__ ((unused)),
char **args __attribute__ ((unused)))
{
grub_err_t err;
grub_video_color_t color;
unsigned int x;
unsigned int y;
unsigned int width;
unsigned int height;
int i;
struct grub_video_render_target *text_layer;
grub_video_color_t palette[16];
err = grub_video_set_mode ("auto", GRUB_VIDEO_MODE_TYPE_PURE_TEXT, 0);
if (err)
return err;
grub_video_get_viewport (&x, &y, &width, &height);
{
const char *str;
int texty;
grub_font_t sansbig;
grub_font_t sans;
grub_font_t sanssmall;
grub_font_t fixed;
struct grub_font_glyph *glyph;
grub_video_create_render_target (&text_layer, width, height,
GRUB_VIDEO_MODE_TYPE_RGB
| GRUB_VIDEO_MODE_TYPE_ALPHA);
grub_video_set_active_render_target (text_layer);
color = grub_video_map_rgb (0, 255, 255);
sansbig = grub_font_get ("Unknown Regular 16");
sans = grub_font_get ("Unknown Regular 16");
sanssmall = grub_font_get ("Unknown Regular 16");
fixed = grub_font_get ("Fixed 20");
if (! sansbig || ! sans || ! sanssmall || ! fixed)
return grub_error (GRUB_ERR_BAD_FONT, "no font loaded");
glyph = grub_font_get_glyph (fixed, '*');
grub_font_draw_glyph (glyph, color, 200 ,0);
color = grub_video_map_rgb (255, 255, 255);
texty = 32;
grub_font_draw_string ("The quick brown fox jumped over the lazy dog.",
sans, color, 16, texty);
texty += grub_font_get_descent (sans) + grub_font_get_leading (sans);
texty += grub_font_get_ascent (fixed);
grub_font_draw_string ("The quick brown fox jumped over the lazy dog.",
fixed, color, 16, texty);
texty += grub_font_get_descent (fixed) + grub_font_get_leading (fixed);
/* To convert Unicode characters into UTF-8 for this test, the following
command is useful:
echo -ne '\x00\x00\x26\x3A' | iconv -f UTF-32BE -t UTF-8 | od -t x1
This converts the Unicode character U+263A to UTF-8. */
/* Characters used:
Code point Description UTF-8 encoding
----------- ------------------------------ --------------
U+263A unfilled smiley face E2 98 BA
U+00A1 inverted exclamation point C2 A1
U+00A3 British pound currency symbol C2 A3
U+03C4 Greek tau CF 84
U+00E4 lowercase letter a with umlaut C3 A4
U+2124 set 'Z' symbol (integers) E2 84 A4
U+2287 subset symbol E2 8A 87
U+211D set 'R' symbol (real numbers) E2 84 9D */
str =
"Unicode test: happy\xE2\x98\xBA \xC2\xA3 5.00"
" \xC2\xA1\xCF\x84\xC3\xA4u! "
" \xE2\x84\xA4\xE2\x8A\x87\xE2\x84\x9D";
color = grub_video_map_rgb (128, 128, 255);
/* All characters in the string exist in the 'Fixed 20' (10x20) font. */
texty += grub_font_get_ascent(fixed);
grub_font_draw_string (str, fixed, color, 16, texty);
texty += grub_font_get_descent (fixed) + grub_font_get_leading (fixed);
texty += grub_font_get_ascent(sansbig);
grub_font_draw_string (str, sansbig, color, 16, texty);
texty += grub_font_get_descent (sansbig) + grub_font_get_leading (sansbig);
texty += grub_font_get_ascent(sans);
grub_font_draw_string (str, sans, color, 16, texty);
texty += grub_font_get_descent (sans) + grub_font_get_leading (sans);
texty += grub_font_get_ascent(sanssmall);
grub_font_draw_string (str, sanssmall, color, 16, texty);
texty += (grub_font_get_descent (sanssmall)
+ grub_font_get_leading (sanssmall));
glyph = grub_font_get_glyph (fixed, '*');
for (i = 0; i < 16; i++)
{
color = grub_video_map_color (i);
palette[i] = color;
grub_font_draw_glyph (glyph, color, 16 + i * 16, 220);
}
}
grub_video_set_active_render_target (GRUB_VIDEO_RENDER_TARGET_DISPLAY);
for (i = 0; i < 2; i++)
{
color = grub_video_map_rgb (0, 0, 0);
grub_video_fill_rect (color, 0, 0, width, height);
color = grub_video_map_rgb (255, 0, 0);
grub_video_fill_rect (color, 0, 0, 100, 100);
color = grub_video_map_rgb (0, 255, 255);
grub_video_fill_rect (color, 100, 100, 100, 100);
grub_video_set_viewport (x + 150, y + 150,
width - 150 * 2, height - 150 * 2);
color = grub_video_map_rgb (77, 33, 77);
grub_video_fill_rect (color, 0, 0, width, height);
grub_video_swap_buffers ();
}
for (i = 0; i < 5; i++)
{
color = grub_video_map_rgb (i, 33, 77);
grub_video_fill_rect (color, 0, 0, width, height);
grub_video_blit_render_target (text_layer, GRUB_VIDEO_BLIT_BLEND, 0, 0,
0, 0, width, height);
grub_video_swap_buffers ();
}
grub_getkey ();
grub_video_delete_render_target (text_layer);
grub_video_restore ();
for (i = 0; i < 16; i++)
grub_printf("color %d: %08x\n", i, palette[i]);
grub_errno = GRUB_ERR_NONE;
return grub_errno;
}
static grub_command_t cmd;
GRUB_MOD_INIT(videotest)
{
cmd = grub_register_command ("videotest", grub_cmd_videotest,
0, N_("Test video subsystem."));
}
GRUB_MOD_FINI(videotest)
{
grub_unregister_command (cmd);
}