190 lines
6.3 KiB
C
190 lines
6.3 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2006,2007,2009 Free Software Foundation, Inc.
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*
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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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*
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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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*
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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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*/
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#include <grub/video.h>
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#include <grub/types.h>
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#include <grub/dl.h>
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#include <grub/misc.h>
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#include <grub/mm.h>
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#include <grub/font.h>
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#include <grub/term.h>
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#include <grub/command.h>
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static grub_err_t
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grub_cmd_videotest (grub_command_t cmd __attribute__ ((unused)),
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int argc __attribute__ ((unused)),
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char **args __attribute__ ((unused)))
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{
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grub_err_t err;
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grub_video_color_t color;
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unsigned int x;
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unsigned int y;
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unsigned int width;
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unsigned int height;
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int i;
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grub_font_t sansbig;
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grub_font_t sans;
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grub_font_t sanssmall;
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grub_font_t fixed;
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struct grub_font_glyph *glyph;
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struct grub_video_render_target *text_layer;
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grub_video_color_t palette[16];
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const char *str;
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int texty;
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err = grub_video_set_mode ("auto", GRUB_VIDEO_MODE_TYPE_PURE_TEXT, 0);
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if (err)
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return err;
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grub_video_get_viewport (&x, &y, &width, &height);
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grub_video_create_render_target (&text_layer, width, height,
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GRUB_VIDEO_MODE_TYPE_RGB
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| GRUB_VIDEO_MODE_TYPE_ALPHA);
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grub_video_set_active_render_target (GRUB_VIDEO_RENDER_TARGET_DISPLAY);
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color = grub_video_map_rgb (0, 0, 0);
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grub_video_fill_rect (color, 0, 0, width, height);
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color = grub_video_map_rgb (255, 0, 0);
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grub_video_fill_rect (color, 0, 0, 100, 100);
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color = grub_video_map_rgb (0, 255, 255);
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grub_video_fill_rect (color, 100, 100, 100, 100);
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sansbig = grub_font_get ("Helvetica Bold 24");
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sans = grub_font_get ("Helvetica Bold 14");
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sanssmall = grub_font_get ("Helvetica 8");
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fixed = grub_font_get ("Fixed 20");
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if (! sansbig || ! sans || ! sanssmall || ! fixed)
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return grub_error (GRUB_ERR_BAD_FONT, "No font loaded.");
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glyph = grub_font_get_glyph (fixed, '*');
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grub_font_draw_glyph (glyph, color, 200 ,0);
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grub_video_set_viewport (x + 150, y + 150,
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width - 150 * 2, height - 150 * 2);
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color = grub_video_map_rgb (77, 33, 77);
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grub_video_fill_rect (color, 0, 0, width, height);
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grub_video_set_active_render_target (text_layer);
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color = grub_video_map_rgb (255, 255, 255);
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texty = 32;
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grub_font_draw_string ("The quick brown fox jumped over the lazy dog.",
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sans, color, 16, texty);
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texty += grub_font_get_descent (sans) + grub_font_get_leading (sans);
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texty += grub_font_get_ascent (fixed);
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grub_font_draw_string ("The quick brown fox jumped over the lazy dog.",
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fixed, color, 16, texty);
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texty += grub_font_get_descent (fixed) + grub_font_get_leading (fixed);
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/* To convert Unicode characters into UTF-8 for this test, the following
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command is useful:
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echo -ne '\x00\x00\x26\x3A' | iconv -f UTF-32BE -t UTF-8 | od -t x1
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This converts the Unicode character U+263A to UTF-8. */
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/* Characters used:
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Code point Description UTF-8 encoding
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----------- ------------------------------ --------------
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U+263A unfilled smiley face E2 98 BA
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U+00A1 inverted exclamation point C2 A1
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U+00A3 British pound currency symbol C2 A3
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U+03C4 Greek tau CF 84
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U+00E4 lowercase letter a with umlaut C3 A4
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U+2124 set 'Z' symbol (integers) E2 84 A4
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U+2287 subset symbol E2 8A 87
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U+211D set 'R' symbol (real numbers) E2 84 9D */
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str =
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"Unicode test: happy\xE2\x98\xBA \xC2\xA3 5.00"
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" \xC2\xA1\xCF\x84\xC3\xA4u! "
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" \xE2\x84\xA4\xE2\x8A\x87\xE2\x84\x9D";
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color = grub_video_map_rgb (128, 128, 255);
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/* All characters in the string exist in the 'Fixed 20' (10x20) font. */
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texty += grub_font_get_ascent(fixed);
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grub_font_draw_string (str, fixed, color, 16, texty);
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texty += grub_font_get_descent (fixed) + grub_font_get_leading (fixed);
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/* Some character don't exist in the Helvetica font, so the font engine
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will fall back to using glyphs from another font that does contain them.
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TODO The font engine should be smart about selecting a replacement font
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and prioritize fonts with similar sizes. */
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texty += grub_font_get_ascent(sansbig);
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grub_font_draw_string (str, sansbig, color, 16, texty);
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texty += grub_font_get_descent (sansbig) + grub_font_get_leading (sansbig);
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texty += grub_font_get_ascent(sans);
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grub_font_draw_string (str, sans, color, 16, texty);
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texty += grub_font_get_descent (sans) + grub_font_get_leading (sans);
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texty += grub_font_get_ascent(sanssmall);
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grub_font_draw_string (str, sanssmall, color, 16, texty);
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texty += (grub_font_get_descent (sanssmall)
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+ grub_font_get_leading (sanssmall));
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glyph = grub_font_get_glyph (fixed, '*');
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for (i = 0; i < 16; i++)
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{
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color = grub_video_map_color (i);
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palette[i] = color;
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grub_font_draw_glyph (glyph, color, 16 + i * 16, 220);
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}
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grub_video_set_active_render_target (GRUB_VIDEO_RENDER_TARGET_DISPLAY);
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for (i = 0; i < 5; i++)
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{
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color = grub_video_map_rgb (i, 33, 77);
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grub_video_fill_rect (color, 0, 0, width, height);
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grub_video_blit_render_target (text_layer, GRUB_VIDEO_BLIT_BLEND, 0, 0,
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0, 0, width, height);
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grub_video_swap_buffers ();
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}
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grub_getkey ();
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grub_video_delete_render_target (text_layer);
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grub_video_restore ();
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for (i = 0; i < 16; i++)
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grub_printf("color %d: %08x\n", i, palette[i]);
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grub_errno = GRUB_ERR_NONE;
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return grub_errno;
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}
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static grub_command_t cmd;
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GRUB_MOD_INIT(videotest)
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{
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cmd = grub_register_command ("videotest", grub_cmd_videotest,
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0, "Test video subsystem.");
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}
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GRUB_MOD_FINI(videotest)
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{
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grub_unregister_command (cmd);
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}
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