1683 lines
56 KiB
C
1683 lines
56 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2005,2006,2007,2008,2009 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/video_fb.h>
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#include <grub/misc.h>
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#include <grub/mm.h>
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#include <grub/fbblit.h>
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#include <grub/fbfill.h>
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#include <grub/fbutil.h>
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#include <grub/bitmap.h>
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#include <grub/dl.h>
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GRUB_MOD_LICENSE ("GPLv3+");
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typedef grub_err_t (*grub_video_fb_doublebuf_update_screen_t) (void);
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typedef volatile void *framebuf_t;
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struct dirty
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{
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int first_line;
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int last_line;
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};
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static struct
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{
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struct grub_video_fbrender_target *render_target;
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struct grub_video_fbrender_target *back_target;
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struct grub_video_palette_data *palette;
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framebuf_t pages[2];
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unsigned int palette_size;
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struct dirty current_dirty;
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struct dirty previous_dirty;
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/* For page flipping strategy. */
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int displayed_page; /* The page # that is the front buffer. */
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int render_page; /* The page # that is the back buffer. */
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grub_video_fb_set_page_t set_page;
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char *offscreen_buffer;
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grub_video_fb_doublebuf_update_screen_t update_screen;
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} framebuffer;
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/* Specify "standard" VGA palette, some video cards may
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need this and this will also be used when using RGB modes. */
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struct grub_video_palette_data grub_video_fbstd_colors[GRUB_VIDEO_FBSTD_EXT_NUMCOLORS] =
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{
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/* Standard (3-bit) colors. */
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// {R, G, B, A}
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{0x00, 0x00, 0x00, 0xFF}, // 0 = black
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{0x00, 0x00, 0xA8, 0xFF}, // 1 = blue
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{0x00, 0xA8, 0x00, 0xFF}, // 2 = green
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{0x00, 0xA8, 0xA8, 0xFF}, // 3 = cyan
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{0xA8, 0x00, 0x00, 0xFF}, // 4 = red
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{0xA8, 0x00, 0xA8, 0xFF}, // 5 = magenta
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{0xA8, 0x54, 0x00, 0xFF}, // 6 = brown
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{0xA8, 0xA8, 0xA8, 0xFF}, // 7 = light gray
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/* Bright (4-bit) colors. */
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{0x54, 0x54, 0x54, 0xFF}, // 8 = dark gray
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{0x54, 0x54, 0xFE, 0xFF}, // 9 = bright blue
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{0x54, 0xFE, 0x54, 0xFF}, // 10 = bright green
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{0x54, 0xFE, 0xFE, 0xFF}, // 11 = bright cyan
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{0xFE, 0x54, 0x54, 0xFF}, // 12 = bright red
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{0xFE, 0x54, 0xFE, 0xFF}, // 13 = bright magenta
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{0xFE, 0xFE, 0x54, 0xFF}, // 14 = yellow
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{0xFE, 0xFE, 0xFE, 0xFF}, // 15 = white
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/* Extended (8-bit) colors. Completes preceding colors to full RGB332. */
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{0x00, 0x00, 0x55, 0xFF}, // RGB332 = (0, 0, 1)
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{0x00, 0x00, 0xFF, 0xFF}, // RGB332 = (0, 0, 3)
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{0x00, 0x24, 0x00, 0xFF}, // RGB332 = (0, 1, 0)
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{0x00, 0x24, 0x55, 0xFF}, // RGB332 = (0, 1, 1)
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{0x00, 0x24, 0xAA, 0xFF}, // RGB332 = (0, 1, 2)
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{0x00, 0x24, 0xFF, 0xFF}, // RGB332 = (0, 1, 3)
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{0x00, 0x48, 0x00, 0xFF}, // RGB332 = (0, 2, 0)
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{0x00, 0x48, 0x55, 0xFF}, // RGB332 = (0, 2, 1)
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{0x00, 0x48, 0xAA, 0xFF}, // RGB332 = (0, 2, 2)
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{0x00, 0x48, 0xFF, 0xFF}, // RGB332 = (0, 2, 3)
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{0x00, 0x6C, 0x00, 0xFF}, // RGB332 = (0, 3, 0)
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{0x00, 0x6C, 0x55, 0xFF}, // RGB332 = (0, 3, 1)
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{0x00, 0x6C, 0xAA, 0xFF}, // RGB332 = (0, 3, 2)
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{0x00, 0x6C, 0xFF, 0xFF}, // RGB332 = (0, 3, 3)
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{0x00, 0x90, 0x00, 0xFF}, // RGB332 = (0, 4, 0)
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{0x00, 0x90, 0x55, 0xFF}, // RGB332 = (0, 4, 1)
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{0x00, 0x90, 0xAA, 0xFF}, // RGB332 = (0, 4, 2)
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{0x00, 0x90, 0xFF, 0xFF}, // RGB332 = (0, 4, 3)
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{0x00, 0xB4, 0x55, 0xFF}, // RGB332 = (0, 5, 1)
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{0x00, 0xB4, 0xFF, 0xFF}, // RGB332 = (0, 5, 3)
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{0x00, 0xD8, 0x00, 0xFF}, // RGB332 = (0, 6, 0)
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{0x00, 0xD8, 0x55, 0xFF}, // RGB332 = (0, 6, 1)
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{0x00, 0xD8, 0xAA, 0xFF}, // RGB332 = (0, 6, 2)
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{0x00, 0xD8, 0xFF, 0xFF}, // RGB332 = (0, 6, 3)
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{0x00, 0xFC, 0x00, 0xFF}, // RGB332 = (0, 7, 0)
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{0x00, 0xFC, 0x55, 0xFF}, // RGB332 = (0, 7, 1)
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{0x00, 0xFC, 0xAA, 0xFF}, // RGB332 = (0, 7, 2)
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{0x00, 0xFC, 0xFF, 0xFF}, // RGB332 = (0, 7, 3)
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{0x24, 0x00, 0x00, 0xFF}, // RGB332 = (1, 0, 0)
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{0x24, 0x00, 0x55, 0xFF}, // RGB332 = (1, 0, 1)
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{0x24, 0x00, 0xAA, 0xFF}, // RGB332 = (1, 0, 2)
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{0x24, 0x00, 0xFF, 0xFF}, // RGB332 = (1, 0, 3)
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{0x24, 0x24, 0x00, 0xFF}, // RGB332 = (1, 1, 0)
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{0x24, 0x24, 0x55, 0xFF}, // RGB332 = (1, 1, 1)
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{0x24, 0x24, 0xAA, 0xFF}, // RGB332 = (1, 1, 2)
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{0x24, 0x24, 0xFF, 0xFF}, // RGB332 = (1, 1, 3)
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{0x24, 0x48, 0x00, 0xFF}, // RGB332 = (1, 2, 0)
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{0x24, 0x48, 0x55, 0xFF}, // RGB332 = (1, 2, 1)
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{0x24, 0x48, 0xAA, 0xFF}, // RGB332 = (1, 2, 2)
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{0x24, 0x48, 0xFF, 0xFF}, // RGB332 = (1, 2, 3)
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{0x24, 0x6C, 0x00, 0xFF}, // RGB332 = (1, 3, 0)
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{0x24, 0x6C, 0x55, 0xFF}, // RGB332 = (1, 3, 1)
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{0x24, 0x6C, 0xAA, 0xFF}, // RGB332 = (1, 3, 2)
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{0x24, 0x6C, 0xFF, 0xFF}, // RGB332 = (1, 3, 3)
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{0x24, 0x90, 0x00, 0xFF}, // RGB332 = (1, 4, 0)
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{0x24, 0x90, 0x55, 0xFF}, // RGB332 = (1, 4, 1)
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{0x24, 0x90, 0xAA, 0xFF}, // RGB332 = (1, 4, 2)
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{0x24, 0x90, 0xFF, 0xFF}, // RGB332 = (1, 4, 3)
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{0x24, 0xB4, 0x00, 0xFF}, // RGB332 = (1, 5, 0)
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{0x24, 0xB4, 0x55, 0xFF}, // RGB332 = (1, 5, 1)
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{0x24, 0xB4, 0xAA, 0xFF}, // RGB332 = (1, 5, 2)
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{0x24, 0xB4, 0xFF, 0xFF}, // RGB332 = (1, 5, 3)
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{0x24, 0xD8, 0x00, 0xFF}, // RGB332 = (1, 6, 0)
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{0x24, 0xD8, 0x55, 0xFF}, // RGB332 = (1, 6, 1)
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{0x24, 0xD8, 0xAA, 0xFF}, // RGB332 = (1, 6, 2)
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{0x24, 0xD8, 0xFF, 0xFF}, // RGB332 = (1, 6, 3)
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{0x24, 0xFC, 0x00, 0xFF}, // RGB332 = (1, 7, 0)
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{0x24, 0xFC, 0x55, 0xFF}, // RGB332 = (1, 7, 1)
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{0x24, 0xFC, 0xAA, 0xFF}, // RGB332 = (1, 7, 2)
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{0x24, 0xFC, 0xFF, 0xFF}, // RGB332 = (1, 7, 3)
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{0x48, 0x00, 0x00, 0xFF}, // RGB332 = (2, 0, 0)
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{0x48, 0x00, 0x55, 0xFF}, // RGB332 = (2, 0, 1)
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{0x48, 0x00, 0xAA, 0xFF}, // RGB332 = (2, 0, 2)
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{0x48, 0x00, 0xFF, 0xFF}, // RGB332 = (2, 0, 3)
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{0x48, 0x24, 0x00, 0xFF}, // RGB332 = (2, 1, 0)
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{0x48, 0x24, 0x55, 0xFF}, // RGB332 = (2, 1, 1)
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{0x48, 0x24, 0xAA, 0xFF}, // RGB332 = (2, 1, 2)
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{0x48, 0x24, 0xFF, 0xFF}, // RGB332 = (2, 1, 3)
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{0x48, 0x48, 0x00, 0xFF}, // RGB332 = (2, 2, 0)
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{0x48, 0x48, 0xAA, 0xFF}, // RGB332 = (2, 2, 2)
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{0x48, 0x6C, 0x00, 0xFF}, // RGB332 = (2, 3, 0)
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{0x48, 0x6C, 0x55, 0xFF}, // RGB332 = (2, 3, 1)
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{0x48, 0x6C, 0xAA, 0xFF}, // RGB332 = (2, 3, 2)
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{0x48, 0x6C, 0xFF, 0xFF}, // RGB332 = (2, 3, 3)
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{0x48, 0x90, 0x00, 0xFF}, // RGB332 = (2, 4, 0)
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{0x48, 0x90, 0x55, 0xFF}, // RGB332 = (2, 4, 1)
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{0x48, 0x90, 0xAA, 0xFF}, // RGB332 = (2, 4, 2)
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{0x48, 0x90, 0xFF, 0xFF}, // RGB332 = (2, 4, 3)
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{0x48, 0xB4, 0x00, 0xFF}, // RGB332 = (2, 5, 0)
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{0x48, 0xB4, 0x55, 0xFF}, // RGB332 = (2, 5, 1)
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{0x48, 0xB4, 0xAA, 0xFF}, // RGB332 = (2, 5, 2)
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{0x48, 0xB4, 0xFF, 0xFF}, // RGB332 = (2, 5, 3)
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{0x48, 0xD8, 0x00, 0xFF}, // RGB332 = (2, 6, 0)
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{0x48, 0xD8, 0x55, 0xFF}, // RGB332 = (2, 6, 1)
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{0x48, 0xD8, 0xAA, 0xFF}, // RGB332 = (2, 6, 2)
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{0x48, 0xD8, 0xFF, 0xFF}, // RGB332 = (2, 6, 3)
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{0x48, 0xFC, 0x00, 0xFF}, // RGB332 = (2, 7, 0)
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{0x48, 0xFC, 0xAA, 0xFF}, // RGB332 = (2, 7, 2)
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{0x6C, 0x00, 0x00, 0xFF}, // RGB332 = (3, 0, 0)
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{0x6C, 0x00, 0x55, 0xFF}, // RGB332 = (3, 0, 1)
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{0x6C, 0x00, 0xAA, 0xFF}, // RGB332 = (3, 0, 2)
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{0x6C, 0x00, 0xFF, 0xFF}, // RGB332 = (3, 0, 3)
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{0x6C, 0x24, 0x00, 0xFF}, // RGB332 = (3, 1, 0)
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{0x6C, 0x24, 0x55, 0xFF}, // RGB332 = (3, 1, 1)
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{0x6C, 0x24, 0xAA, 0xFF}, // RGB332 = (3, 1, 2)
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{0x6C, 0x24, 0xFF, 0xFF}, // RGB332 = (3, 1, 3)
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{0x6C, 0x48, 0x00, 0xFF}, // RGB332 = (3, 2, 0)
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{0x6C, 0x48, 0x55, 0xFF}, // RGB332 = (3, 2, 1)
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{0x6C, 0x48, 0xAA, 0xFF}, // RGB332 = (3, 2, 2)
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{0x6C, 0x48, 0xFF, 0xFF}, // RGB332 = (3, 2, 3)
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{0x6C, 0x6C, 0x00, 0xFF}, // RGB332 = (3, 3, 0)
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{0x6C, 0x6C, 0x55, 0xFF}, // RGB332 = (3, 3, 1)
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{0x6C, 0x6C, 0xAA, 0xFF}, // RGB332 = (3, 3, 2)
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{0x6C, 0x6C, 0xFF, 0xFF}, // RGB332 = (3, 3, 3)
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{0x6C, 0x90, 0x00, 0xFF}, // RGB332 = (3, 4, 0)
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{0x6C, 0x90, 0x55, 0xFF}, // RGB332 = (3, 4, 1)
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{0x6C, 0x90, 0xAA, 0xFF}, // RGB332 = (3, 4, 2)
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{0x6C, 0x90, 0xFF, 0xFF}, // RGB332 = (3, 4, 3)
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{0x6C, 0xB4, 0x00, 0xFF}, // RGB332 = (3, 5, 0)
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{0x6C, 0xB4, 0x55, 0xFF}, // RGB332 = (3, 5, 1)
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{0x6C, 0xB4, 0xAA, 0xFF}, // RGB332 = (3, 5, 2)
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{0x6C, 0xB4, 0xFF, 0xFF}, // RGB332 = (3, 5, 3)
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{0x6C, 0xD8, 0x00, 0xFF}, // RGB332 = (3, 6, 0)
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{0x6C, 0xD8, 0x55, 0xFF}, // RGB332 = (3, 6, 1)
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{0x6C, 0xD8, 0xAA, 0xFF}, // RGB332 = (3, 6, 2)
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{0x6C, 0xD8, 0xFF, 0xFF}, // RGB332 = (3, 6, 3)
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{0x6C, 0xFC, 0x00, 0xFF}, // RGB332 = (3, 7, 0)
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{0x6C, 0xFC, 0x55, 0xFF}, // RGB332 = (3, 7, 1)
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{0x6C, 0xFC, 0xAA, 0xFF}, // RGB332 = (3, 7, 2)
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{0x6C, 0xFC, 0xFF, 0xFF}, // RGB332 = (3, 7, 3)
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{0x90, 0x00, 0x00, 0xFF}, // RGB332 = (4, 0, 0)
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{0x90, 0x00, 0x55, 0xFF}, // RGB332 = (4, 0, 1)
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{0x90, 0x00, 0xAA, 0xFF}, // RGB332 = (4, 0, 2)
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{0x90, 0x00, 0xFF, 0xFF}, // RGB332 = (4, 0, 3)
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{0x90, 0x24, 0x00, 0xFF}, // RGB332 = (4, 1, 0)
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{0x90, 0x24, 0x55, 0xFF}, // RGB332 = (4, 1, 1)
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{0x90, 0x24, 0xAA, 0xFF}, // RGB332 = (4, 1, 2)
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{0x90, 0x24, 0xFF, 0xFF}, // RGB332 = (4, 1, 3)
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{0x90, 0x48, 0x00, 0xFF}, // RGB332 = (4, 2, 0)
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{0x90, 0x48, 0x55, 0xFF}, // RGB332 = (4, 2, 1)
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{0x90, 0x48, 0xAA, 0xFF}, // RGB332 = (4, 2, 2)
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{0x90, 0x48, 0xFF, 0xFF}, // RGB332 = (4, 2, 3)
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{0x90, 0x6C, 0x00, 0xFF}, // RGB332 = (4, 3, 0)
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{0x90, 0x6C, 0x55, 0xFF}, // RGB332 = (4, 3, 1)
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{0x90, 0x6C, 0xAA, 0xFF}, // RGB332 = (4, 3, 2)
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{0x90, 0x6C, 0xFF, 0xFF}, // RGB332 = (4, 3, 3)
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{0x90, 0x90, 0x00, 0xFF}, // RGB332 = (4, 4, 0)
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{0x90, 0x90, 0x55, 0xFF}, // RGB332 = (4, 4, 1)
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{0x90, 0x90, 0xAA, 0xFF}, // RGB332 = (4, 4, 2)
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{0x90, 0x90, 0xFF, 0xFF}, // RGB332 = (4, 4, 3)
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{0x90, 0xB4, 0x00, 0xFF}, // RGB332 = (4, 5, 0)
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{0x90, 0xB4, 0x55, 0xFF}, // RGB332 = (4, 5, 1)
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{0x90, 0xB4, 0xAA, 0xFF}, // RGB332 = (4, 5, 2)
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{0x90, 0xB4, 0xFF, 0xFF}, // RGB332 = (4, 5, 3)
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{0x90, 0xD8, 0x00, 0xFF}, // RGB332 = (4, 6, 0)
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{0x90, 0xD8, 0x55, 0xFF}, // RGB332 = (4, 6, 1)
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{0x90, 0xD8, 0xAA, 0xFF}, // RGB332 = (4, 6, 2)
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{0x90, 0xD8, 0xFF, 0xFF}, // RGB332 = (4, 6, 3)
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{0x90, 0xFC, 0x00, 0xFF}, // RGB332 = (4, 7, 0)
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{0x90, 0xFC, 0x55, 0xFF}, // RGB332 = (4, 7, 1)
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{0x90, 0xFC, 0xAA, 0xFF}, // RGB332 = (4, 7, 2)
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{0x90, 0xFC, 0xFF, 0xFF}, // RGB332 = (4, 7, 3)
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{0xB4, 0x00, 0x55, 0xFF}, // RGB332 = (5, 0, 1)
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{0xB4, 0x00, 0xFF, 0xFF}, // RGB332 = (5, 0, 3)
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{0xB4, 0x24, 0x00, 0xFF}, // RGB332 = (5, 1, 0)
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{0xB4, 0x24, 0x55, 0xFF}, // RGB332 = (5, 1, 1)
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{0xB4, 0x24, 0xAA, 0xFF}, // RGB332 = (5, 1, 2)
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{0xB4, 0x24, 0xFF, 0xFF}, // RGB332 = (5, 1, 3)
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{0xB4, 0x48, 0x55, 0xFF}, // RGB332 = (5, 2, 1)
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{0xB4, 0x48, 0xAA, 0xFF}, // RGB332 = (5, 2, 2)
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{0xB4, 0x48, 0xFF, 0xFF}, // RGB332 = (5, 2, 3)
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{0xB4, 0x6C, 0x00, 0xFF}, // RGB332 = (5, 3, 0)
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{0xB4, 0x6C, 0x55, 0xFF}, // RGB332 = (5, 3, 1)
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{0xB4, 0x6C, 0xAA, 0xFF}, // RGB332 = (5, 3, 2)
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{0xB4, 0x6C, 0xFF, 0xFF}, // RGB332 = (5, 3, 3)
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{0xB4, 0x90, 0x00, 0xFF}, // RGB332 = (5, 4, 0)
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{0xB4, 0x90, 0x55, 0xFF}, // RGB332 = (5, 4, 1)
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{0xB4, 0x90, 0xAA, 0xFF}, // RGB332 = (5, 4, 2)
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{0xB4, 0x90, 0xFF, 0xFF}, // RGB332 = (5, 4, 3)
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{0xB4, 0xB4, 0x00, 0xFF}, // RGB332 = (5, 5, 0)
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{0xB4, 0xB4, 0x55, 0xFF}, // RGB332 = (5, 5, 1)
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{0xB4, 0xB4, 0xFF, 0xFF}, // RGB332 = (5, 5, 3)
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{0xB4, 0xD8, 0x00, 0xFF}, // RGB332 = (5, 6, 0)
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{0xB4, 0xD8, 0x55, 0xFF}, // RGB332 = (5, 6, 1)
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{0xB4, 0xD8, 0xAA, 0xFF}, // RGB332 = (5, 6, 2)
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{0xB4, 0xD8, 0xFF, 0xFF}, // RGB332 = (5, 6, 3)
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{0xB4, 0xFC, 0x00, 0xFF}, // RGB332 = (5, 7, 0)
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{0xB4, 0xFC, 0x55, 0xFF}, // RGB332 = (5, 7, 1)
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{0xB4, 0xFC, 0xAA, 0xFF}, // RGB332 = (5, 7, 2)
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{0xB4, 0xFC, 0xFF, 0xFF}, // RGB332 = (5, 7, 3)
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{0xD8, 0x00, 0x00, 0xFF}, // RGB332 = (6, 0, 0)
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{0xD8, 0x00, 0x55, 0xFF}, // RGB332 = (6, 0, 1)
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{0xD8, 0x00, 0xAA, 0xFF}, // RGB332 = (6, 0, 2)
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{0xD8, 0x00, 0xFF, 0xFF}, // RGB332 = (6, 0, 3)
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{0xD8, 0x24, 0x00, 0xFF}, // RGB332 = (6, 1, 0)
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{0xD8, 0x24, 0x55, 0xFF}, // RGB332 = (6, 1, 1)
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{0xD8, 0x24, 0xAA, 0xFF}, // RGB332 = (6, 1, 2)
|
|
{0xD8, 0x24, 0xFF, 0xFF}, // RGB332 = (6, 1, 3)
|
|
{0xD8, 0x48, 0x00, 0xFF}, // RGB332 = (6, 2, 0)
|
|
{0xD8, 0x48, 0x55, 0xFF}, // RGB332 = (6, 2, 1)
|
|
{0xD8, 0x48, 0xAA, 0xFF}, // RGB332 = (6, 2, 2)
|
|
{0xD8, 0x48, 0xFF, 0xFF}, // RGB332 = (6, 2, 3)
|
|
{0xD8, 0x6C, 0x00, 0xFF}, // RGB332 = (6, 3, 0)
|
|
{0xD8, 0x6C, 0x55, 0xFF}, // RGB332 = (6, 3, 1)
|
|
{0xD8, 0x6C, 0xAA, 0xFF}, // RGB332 = (6, 3, 2)
|
|
{0xD8, 0x6C, 0xFF, 0xFF}, // RGB332 = (6, 3, 3)
|
|
{0xD8, 0x90, 0x00, 0xFF}, // RGB332 = (6, 4, 0)
|
|
{0xD8, 0x90, 0x55, 0xFF}, // RGB332 = (6, 4, 1)
|
|
{0xD8, 0x90, 0xAA, 0xFF}, // RGB332 = (6, 4, 2)
|
|
{0xD8, 0x90, 0xFF, 0xFF}, // RGB332 = (6, 4, 3)
|
|
{0xD8, 0xB4, 0x00, 0xFF}, // RGB332 = (6, 5, 0)
|
|
{0xD8, 0xB4, 0x55, 0xFF}, // RGB332 = (6, 5, 1)
|
|
{0xD8, 0xB4, 0xAA, 0xFF}, // RGB332 = (6, 5, 2)
|
|
{0xD8, 0xB4, 0xFF, 0xFF}, // RGB332 = (6, 5, 3)
|
|
{0xD8, 0xD8, 0x00, 0xFF}, // RGB332 = (6, 6, 0)
|
|
{0xD8, 0xD8, 0x55, 0xFF}, // RGB332 = (6, 6, 1)
|
|
{0xD8, 0xD8, 0xAA, 0xFF}, // RGB332 = (6, 6, 2)
|
|
{0xD8, 0xD8, 0xFF, 0xFF}, // RGB332 = (6, 6, 3)
|
|
{0xD8, 0xFC, 0x00, 0xFF}, // RGB332 = (6, 7, 0)
|
|
{0xD8, 0xFC, 0x55, 0xFF}, // RGB332 = (6, 7, 1)
|
|
{0xD8, 0xFC, 0xAA, 0xFF}, // RGB332 = (6, 7, 2)
|
|
{0xD8, 0xFC, 0xFF, 0xFF}, // RGB332 = (6, 7, 3)
|
|
{0xFC, 0x00, 0x00, 0xFF}, // RGB332 = (7, 0, 0)
|
|
{0xFC, 0x00, 0x55, 0xFF}, // RGB332 = (7, 0, 1)
|
|
{0xFC, 0x00, 0xAA, 0xFF}, // RGB332 = (7, 0, 2)
|
|
{0xFC, 0x00, 0xFF, 0xFF}, // RGB332 = (7, 0, 3)
|
|
{0xFC, 0x24, 0x00, 0xFF}, // RGB332 = (7, 1, 0)
|
|
{0xFC, 0x24, 0x55, 0xFF}, // RGB332 = (7, 1, 1)
|
|
{0xFC, 0x24, 0xAA, 0xFF}, // RGB332 = (7, 1, 2)
|
|
{0xFC, 0x24, 0xFF, 0xFF}, // RGB332 = (7, 1, 3)
|
|
{0xFC, 0x48, 0x00, 0xFF}, // RGB332 = (7, 2, 0)
|
|
{0xFC, 0x48, 0xAA, 0xFF}, // RGB332 = (7, 2, 2)
|
|
{0xFC, 0x6C, 0x00, 0xFF}, // RGB332 = (7, 3, 0)
|
|
{0xFC, 0x6C, 0x55, 0xFF}, // RGB332 = (7, 3, 1)
|
|
{0xFC, 0x6C, 0xAA, 0xFF}, // RGB332 = (7, 3, 2)
|
|
{0xFC, 0x6C, 0xFF, 0xFF}, // RGB332 = (7, 3, 3)
|
|
{0xFC, 0x90, 0x00, 0xFF}, // RGB332 = (7, 4, 0)
|
|
{0xFC, 0x90, 0x55, 0xFF}, // RGB332 = (7, 4, 1)
|
|
{0xFC, 0x90, 0xAA, 0xFF}, // RGB332 = (7, 4, 2)
|
|
{0xFC, 0x90, 0xFF, 0xFF}, // RGB332 = (7, 4, 3)
|
|
{0xFC, 0xB4, 0x00, 0xFF}, // RGB332 = (7, 5, 0)
|
|
{0xFC, 0xB4, 0x55, 0xFF}, // RGB332 = (7, 5, 1)
|
|
{0xFC, 0xB4, 0xAA, 0xFF}, // RGB332 = (7, 5, 2)
|
|
{0xFC, 0xB4, 0xFF, 0xFF}, // RGB332 = (7, 5, 3)
|
|
{0xFC, 0xD8, 0x00, 0xFF}, // RGB332 = (7, 6, 0)
|
|
{0xFC, 0xD8, 0x55, 0xFF}, // RGB332 = (7, 6, 1)
|
|
{0xFC, 0xD8, 0xAA, 0xFF}, // RGB332 = (7, 6, 2)
|
|
{0xFC, 0xD8, 0xFF, 0xFF}, // RGB332 = (7, 6, 3)
|
|
{0xFC, 0xFC, 0x00, 0xFF}, // RGB332 = (7, 7, 0)
|
|
{0xFC, 0xFC, 0xAA, 0xFF}, // RGB332 = (7, 7, 2)
|
|
};
|
|
|
|
grub_err_t
|
|
grub_video_fb_init (void)
|
|
{
|
|
grub_free (framebuffer.palette);
|
|
framebuffer.render_target = 0;
|
|
framebuffer.back_target = 0;
|
|
framebuffer.palette = 0;
|
|
framebuffer.palette_size = 0;
|
|
framebuffer.set_page = 0;
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_fini (void)
|
|
{
|
|
/* TODO: destroy render targets. */
|
|
|
|
grub_free (framebuffer.offscreen_buffer);
|
|
grub_free (framebuffer.palette);
|
|
framebuffer.render_target = 0;
|
|
framebuffer.back_target = 0;
|
|
framebuffer.palette = 0;
|
|
framebuffer.palette_size = 0;
|
|
framebuffer.set_page = 0;
|
|
framebuffer.offscreen_buffer = 0;
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_get_info (struct grub_video_mode_info *mode_info)
|
|
{
|
|
/* Copy mode info from active render target. */
|
|
grub_memcpy (mode_info, &framebuffer.render_target->mode_info,
|
|
sizeof (struct grub_video_mode_info));
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_get_palette (unsigned int start, unsigned int count,
|
|
struct grub_video_palette_data *palette_data)
|
|
{
|
|
unsigned int i;
|
|
|
|
/* Assume that we know everything from index color palette. */
|
|
for (i = 0; (i < count) && ((i + start) < framebuffer.palette_size); i++)
|
|
palette_data[i] = framebuffer.palette[start + i];
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_set_palette (unsigned int start, unsigned int count,
|
|
struct grub_video_palette_data *palette_data)
|
|
{
|
|
unsigned i;
|
|
if (start + count > framebuffer.palette_size)
|
|
{
|
|
framebuffer.palette_size = start + count;
|
|
framebuffer.palette = grub_realloc (framebuffer.palette,
|
|
sizeof (framebuffer.palette[0])
|
|
* framebuffer.palette_size);
|
|
if (!framebuffer.palette)
|
|
{
|
|
grub_video_fb_fini ();
|
|
return grub_errno;
|
|
}
|
|
}
|
|
for (i = 0; (i < count) && ((i + start) < framebuffer.palette_size); i++)
|
|
framebuffer.palette[start + i] = palette_data[i];
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
static grub_err_t
|
|
grub_video_fb_set_area (void)
|
|
{
|
|
unsigned int viewport_x1 = framebuffer.render_target->viewport.x;
|
|
unsigned int viewport_y1 = framebuffer.render_target->viewport.y;
|
|
unsigned int viewport_width = framebuffer.render_target->viewport.width;
|
|
unsigned int viewport_height = framebuffer.render_target->viewport.height;
|
|
unsigned int viewport_x2 = viewport_x1 + viewport_width;
|
|
unsigned int viewport_y2 = viewport_y1 + viewport_height;
|
|
|
|
unsigned int region_x1 = framebuffer.render_target->region.x;
|
|
unsigned int region_y1 = framebuffer.render_target->region.y;
|
|
unsigned int region_width = framebuffer.render_target->region.width;
|
|
unsigned int region_height = framebuffer.render_target->region.height;
|
|
unsigned int region_x2 = region_x1 + region_width;
|
|
unsigned int region_y2 = region_y1 + region_height;
|
|
|
|
unsigned int max_x1 = grub_max (viewport_x1, region_x1);
|
|
unsigned int min_x2 = grub_min (viewport_x2, region_x2);
|
|
unsigned int max_y1 = grub_max (viewport_y1, region_y1);
|
|
unsigned int min_y2 = grub_min (viewport_y2, region_y2);
|
|
|
|
/* Viewport and region do not intersect. */
|
|
if (viewport_width == 0 || viewport_height == 0 || region_width == 0
|
|
|| region_height == 0 || max_x1 >= min_x2 || max_y1 >= min_y2)
|
|
{
|
|
framebuffer.render_target->area.x = 0;
|
|
framebuffer.render_target->area.y = 0;
|
|
framebuffer.render_target->area.width = 0;
|
|
framebuffer.render_target->area.height = 0;
|
|
framebuffer.render_target->area_offset_x = 0;
|
|
framebuffer.render_target->area_offset_y = 0;
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
/* There is non-zero intersection. */
|
|
framebuffer.render_target->area.x = max_x1;
|
|
framebuffer.render_target->area.y = max_y1;
|
|
framebuffer.render_target->area.width = min_x2 - max_x1;
|
|
framebuffer.render_target->area.height = min_y2 - max_y1;
|
|
|
|
if (region_x1 > viewport_x1)
|
|
framebuffer.render_target->area_offset_x = (int)region_x1
|
|
- (int)viewport_x1;
|
|
else
|
|
framebuffer.render_target->area_offset_x = 0;
|
|
if (region_y1 > viewport_y1)
|
|
framebuffer.render_target->area_offset_y = (int)region_y1
|
|
- (int)viewport_y1;
|
|
else
|
|
framebuffer.render_target->area_offset_y = 0;
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_set_viewport (unsigned int x, unsigned int y,
|
|
unsigned int width, unsigned int height)
|
|
{
|
|
/* Make sure viewport is within screen dimensions. If viewport was set
|
|
to be out of the screen, mark its size as zero. */
|
|
if (x > framebuffer.render_target->mode_info.width)
|
|
{
|
|
x = 0;
|
|
width = 0;
|
|
}
|
|
|
|
if (y > framebuffer.render_target->mode_info.height)
|
|
{
|
|
y = 0;
|
|
height = 0;
|
|
}
|
|
|
|
if (x + width > framebuffer.render_target->mode_info.width)
|
|
width = framebuffer.render_target->mode_info.width - x;
|
|
|
|
if (y + height > framebuffer.render_target->mode_info.height)
|
|
height = framebuffer.render_target->mode_info.height - y;
|
|
|
|
framebuffer.render_target->viewport.x = x;
|
|
framebuffer.render_target->viewport.y = y;
|
|
framebuffer.render_target->viewport.width = width;
|
|
framebuffer.render_target->viewport.height = height;
|
|
|
|
/* Count drawing area only if needed. */
|
|
if (framebuffer.render_target->area_enabled)
|
|
grub_video_fb_set_area ();
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_get_viewport (unsigned int *x, unsigned int *y,
|
|
unsigned int *width, unsigned int *height)
|
|
{
|
|
if (x) *x = framebuffer.render_target->viewport.x;
|
|
if (y) *y = framebuffer.render_target->viewport.y;
|
|
if (width) *width = framebuffer.render_target->viewport.width;
|
|
if (height) *height = framebuffer.render_target->viewport.height;
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_set_region (unsigned int x, unsigned int y,
|
|
unsigned int width, unsigned int height)
|
|
{
|
|
/* Make sure region is within screen dimensions. If region was set
|
|
to be out of the screen, mark its size as zero. */
|
|
if (x > framebuffer.render_target->mode_info.width)
|
|
{
|
|
x = 0;
|
|
width = 0;
|
|
}
|
|
|
|
if (y > framebuffer.render_target->mode_info.height)
|
|
{
|
|
y = 0;
|
|
height = 0;
|
|
}
|
|
|
|
if (x + width > framebuffer.render_target->mode_info.width)
|
|
width = framebuffer.render_target->mode_info.width - x;
|
|
|
|
if (y + height > framebuffer.render_target->mode_info.height)
|
|
height = framebuffer.render_target->mode_info.height - y;
|
|
|
|
framebuffer.render_target->region.x = x;
|
|
framebuffer.render_target->region.y = y;
|
|
framebuffer.render_target->region.width = width;
|
|
framebuffer.render_target->region.height = height;
|
|
|
|
/* If we have called set_region then area is needed. */
|
|
grub_video_fb_set_area ();
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_get_region (unsigned int *x, unsigned int *y,
|
|
unsigned int *width, unsigned int *height)
|
|
{
|
|
if (x) *x = framebuffer.render_target->region.x;
|
|
if (y) *y = framebuffer.render_target->region.y;
|
|
if (width) *width = framebuffer.render_target->region.width;
|
|
if (height) *height = framebuffer.render_target->region.height;
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_set_area_status (grub_video_area_status_t area_status)
|
|
{
|
|
if (area_status == GRUB_VIDEO_AREA_ENABLED)
|
|
framebuffer.render_target->area_enabled = 1;
|
|
else
|
|
framebuffer.render_target->area_enabled = 0;
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_get_area_status (grub_video_area_status_t *area_status)
|
|
{
|
|
if (!area_status)
|
|
return GRUB_ERR_NONE;
|
|
|
|
if (framebuffer.render_target->area_enabled)
|
|
*area_status = GRUB_VIDEO_AREA_ENABLED;
|
|
else
|
|
*area_status = GRUB_VIDEO_AREA_DISABLED;
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
/* Maps color name to target optimized color format. */
|
|
grub_video_color_t
|
|
grub_video_fb_map_color (grub_uint32_t color_name)
|
|
{
|
|
/* TODO: implement color theme mapping code. */
|
|
|
|
if (color_name < framebuffer.palette_size)
|
|
{
|
|
if ((framebuffer.render_target->mode_info.mode_type
|
|
& GRUB_VIDEO_MODE_TYPE_INDEX_COLOR) != 0)
|
|
return color_name;
|
|
else
|
|
{
|
|
grub_video_color_t color;
|
|
|
|
color = grub_video_fb_map_rgb (framebuffer.palette[color_name].r,
|
|
framebuffer.palette[color_name].g,
|
|
framebuffer.palette[color_name].b);
|
|
|
|
return color;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Maps RGB to target optimized color format. */
|
|
grub_video_color_t
|
|
grub_video_fb_map_rgb (grub_uint8_t red, grub_uint8_t green,
|
|
grub_uint8_t blue)
|
|
{
|
|
if ((framebuffer.render_target->mode_info.mode_type
|
|
& GRUB_VIDEO_MODE_TYPE_INDEX_COLOR) != 0)
|
|
{
|
|
int minindex = 0;
|
|
int delta = 0;
|
|
int tmp;
|
|
int val;
|
|
unsigned i;
|
|
|
|
/* Find best matching color. */
|
|
for (i = 0; i < framebuffer.palette_size; i++)
|
|
{
|
|
val = framebuffer.palette[i].r - red;
|
|
tmp = val * val;
|
|
val = framebuffer.palette[i].g - green;
|
|
tmp += val * val;
|
|
val = framebuffer.palette[i].b - blue;
|
|
tmp += val * val;
|
|
|
|
if (i == 0)
|
|
delta = tmp;
|
|
|
|
if (tmp < delta)
|
|
{
|
|
delta = tmp;
|
|
minindex = i;
|
|
if (tmp == 0)
|
|
break;
|
|
}
|
|
}
|
|
|
|
return minindex;
|
|
}
|
|
else if ((framebuffer.render_target->mode_info.mode_type
|
|
& GRUB_VIDEO_MODE_TYPE_1BIT_BITMAP) != 0)
|
|
{
|
|
if (red == framebuffer.render_target->mode_info.fg_red
|
|
&& green == framebuffer.render_target->mode_info.fg_green
|
|
&& blue == framebuffer.render_target->mode_info.fg_blue)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
grub_uint32_t value;
|
|
grub_uint8_t alpha = 255; /* Opaque color. */
|
|
|
|
red >>= 8 - framebuffer.render_target->mode_info.red_mask_size;
|
|
green >>= 8 - framebuffer.render_target->mode_info.green_mask_size;
|
|
blue >>= 8 - framebuffer.render_target->mode_info.blue_mask_size;
|
|
alpha >>= 8 - framebuffer.render_target->mode_info.reserved_mask_size;
|
|
|
|
value = red << framebuffer.render_target->mode_info.red_field_pos;
|
|
value |= green << framebuffer.render_target->mode_info.green_field_pos;
|
|
value |= blue << framebuffer.render_target->mode_info.blue_field_pos;
|
|
value |= alpha << framebuffer.render_target->mode_info.reserved_field_pos;
|
|
|
|
return value;
|
|
}
|
|
|
|
}
|
|
|
|
/* Maps RGBA to target optimized color format. */
|
|
grub_video_color_t
|
|
grub_video_fb_map_rgba (grub_uint8_t red, grub_uint8_t green,
|
|
grub_uint8_t blue, grub_uint8_t alpha)
|
|
{
|
|
|
|
if ((framebuffer.render_target->mode_info.mode_type
|
|
& GRUB_VIDEO_MODE_TYPE_INDEX_COLOR) != 0)
|
|
{
|
|
if ((framebuffer.render_target->mode_info.mode_type
|
|
& GRUB_VIDEO_MODE_TYPE_ALPHA) != 0
|
|
&& alpha == 0)
|
|
return 0xf0;
|
|
/* No alpha available in index color modes, just use
|
|
same value as in only RGB modes. */
|
|
return grub_video_fb_map_rgb (red, green, blue);
|
|
}
|
|
else if ((framebuffer.render_target->mode_info.mode_type
|
|
& GRUB_VIDEO_MODE_TYPE_1BIT_BITMAP) != 0)
|
|
{
|
|
if (red == framebuffer.render_target->mode_info.fg_red
|
|
&& green == framebuffer.render_target->mode_info.fg_green
|
|
&& blue == framebuffer.render_target->mode_info.fg_blue
|
|
&& alpha == framebuffer.render_target->mode_info.fg_alpha)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
grub_uint32_t value;
|
|
|
|
red >>= 8 - framebuffer.render_target->mode_info.red_mask_size;
|
|
green >>= 8 - framebuffer.render_target->mode_info.green_mask_size;
|
|
blue >>= 8 - framebuffer.render_target->mode_info.blue_mask_size;
|
|
alpha >>= 8 - framebuffer.render_target->mode_info.reserved_mask_size;
|
|
|
|
value = red << framebuffer.render_target->mode_info.red_field_pos;
|
|
value |= green << framebuffer.render_target->mode_info.green_field_pos;
|
|
value |= blue << framebuffer.render_target->mode_info.blue_field_pos;
|
|
value |= alpha << framebuffer.render_target->mode_info.reserved_field_pos;
|
|
|
|
return value;
|
|
}
|
|
}
|
|
|
|
/* Splits target optimized format to components. */
|
|
grub_err_t
|
|
grub_video_fb_unmap_color (grub_video_color_t color,
|
|
grub_uint8_t *red, grub_uint8_t *green,
|
|
grub_uint8_t *blue, grub_uint8_t *alpha)
|
|
{
|
|
struct grub_video_fbblit_info target_info;
|
|
|
|
target_info.mode_info = &framebuffer.render_target->mode_info;
|
|
target_info.data = framebuffer.render_target->data;
|
|
|
|
grub_video_fb_unmap_color_int (&target_info, color, red, green, blue, alpha);
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
/* Splits color in source format to components. */
|
|
void
|
|
grub_video_fb_unmap_color_int (struct grub_video_fbblit_info * source,
|
|
grub_video_color_t color,
|
|
grub_uint8_t *red, grub_uint8_t *green,
|
|
grub_uint8_t *blue, grub_uint8_t *alpha)
|
|
{
|
|
struct grub_video_mode_info *mode_info;
|
|
mode_info = source->mode_info;
|
|
|
|
if ((mode_info->mode_type
|
|
& GRUB_VIDEO_MODE_TYPE_INDEX_COLOR) != 0)
|
|
{
|
|
if ((mode_info->mode_type
|
|
& GRUB_VIDEO_MODE_TYPE_ALPHA) != 0
|
|
&& color == 0xf0)
|
|
{
|
|
*red = 0;
|
|
*green = 0;
|
|
*blue = 0;
|
|
*alpha = 0;
|
|
return;
|
|
}
|
|
|
|
/* If we have an out-of-bounds color, return transparent black. */
|
|
if (color > 255)
|
|
{
|
|
*red = 0;
|
|
*green = 0;
|
|
*blue = 0;
|
|
*alpha = 0;
|
|
return;
|
|
}
|
|
|
|
*red = framebuffer.palette[color].r;
|
|
*green = framebuffer.palette[color].g;
|
|
*blue = framebuffer.palette[color].b;
|
|
*alpha = framebuffer.palette[color].a;
|
|
return;
|
|
}
|
|
else if ((mode_info->mode_type
|
|
& GRUB_VIDEO_MODE_TYPE_1BIT_BITMAP) != 0)
|
|
{
|
|
if (color & 1)
|
|
{
|
|
*red = mode_info->fg_red;
|
|
*green = mode_info->fg_green;
|
|
*blue = mode_info->fg_blue;
|
|
*alpha = mode_info->fg_alpha;
|
|
}
|
|
else
|
|
{
|
|
*red = mode_info->bg_red;
|
|
*green = mode_info->bg_green;
|
|
*blue = mode_info->bg_blue;
|
|
*alpha = mode_info->bg_alpha;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
grub_uint32_t tmp;
|
|
|
|
/* Get red component. */
|
|
tmp = color >> mode_info->red_field_pos;
|
|
tmp &= (1 << mode_info->red_mask_size) - 1;
|
|
tmp <<= 8 - mode_info->red_mask_size;
|
|
tmp |= (1 << (8 - mode_info->red_mask_size)) - 1;
|
|
*red = tmp & 0xFF;
|
|
|
|
/* Get green component. */
|
|
tmp = color >> mode_info->green_field_pos;
|
|
tmp &= (1 << mode_info->green_mask_size) - 1;
|
|
tmp <<= 8 - mode_info->green_mask_size;
|
|
tmp |= (1 << (8 - mode_info->green_mask_size)) - 1;
|
|
*green = tmp & 0xFF;
|
|
|
|
/* Get blue component. */
|
|
tmp = color >> mode_info->blue_field_pos;
|
|
tmp &= (1 << mode_info->blue_mask_size) - 1;
|
|
tmp <<= 8 - mode_info->blue_mask_size;
|
|
tmp |= (1 << (8 - mode_info->blue_mask_size)) - 1;
|
|
*blue = tmp & 0xFF;
|
|
|
|
/* Get alpha component. */
|
|
if (source->mode_info->reserved_mask_size > 0)
|
|
{
|
|
tmp = color >> mode_info->reserved_field_pos;
|
|
tmp &= (1 << mode_info->reserved_mask_size) - 1;
|
|
tmp <<= 8 - mode_info->reserved_mask_size;
|
|
tmp |= (1 << (8 - mode_info->reserved_mask_size)) - 1;
|
|
}
|
|
else
|
|
/* If there is no alpha component, assume it opaque. */
|
|
tmp = 255;
|
|
|
|
*alpha = tmp & 0xFF;
|
|
}
|
|
}
|
|
|
|
static void
|
|
dirty (int y, int height)
|
|
{
|
|
if (framebuffer.render_target != framebuffer.back_target)
|
|
return;
|
|
if (framebuffer.current_dirty.first_line > y)
|
|
framebuffer.current_dirty.first_line = y;
|
|
if (framebuffer.current_dirty.last_line < y + height)
|
|
framebuffer.current_dirty.last_line = y + height;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_fill_rect (grub_video_color_t color, int x, int y,
|
|
unsigned int width, unsigned int height)
|
|
{
|
|
struct grub_video_fbblit_info target;
|
|
unsigned int area_x;
|
|
unsigned int area_y;
|
|
unsigned int area_width;
|
|
unsigned int area_height;
|
|
if (framebuffer.render_target->area_enabled)
|
|
{
|
|
area_x = framebuffer.render_target->area.x;
|
|
area_y = framebuffer.render_target->area.y;
|
|
area_width = framebuffer.render_target->area.width;
|
|
area_height = framebuffer.render_target->area.height;
|
|
x -= framebuffer.render_target->area_offset_x;
|
|
y -= framebuffer.render_target->area_offset_y;
|
|
}
|
|
else
|
|
{
|
|
area_x = framebuffer.render_target->viewport.x;
|
|
area_y = framebuffer.render_target->viewport.y;
|
|
area_width = framebuffer.render_target->viewport.width;
|
|
area_height = framebuffer.render_target->viewport.height;
|
|
}
|
|
|
|
/* Make sure there is something to do. */
|
|
if ((area_width == 0) || (area_height == 0))
|
|
return GRUB_ERR_NONE;
|
|
if ((x >= (int)area_width) || (x + (int)width < 0))
|
|
return GRUB_ERR_NONE;
|
|
if ((y >= (int)area_height) || (y + (int)height < 0))
|
|
return GRUB_ERR_NONE;
|
|
|
|
/* Do not allow drawing out of area. */
|
|
if (x < 0)
|
|
{
|
|
width += x;
|
|
x = 0;
|
|
}
|
|
if (y < 0)
|
|
{
|
|
height += y;
|
|
y = 0;
|
|
}
|
|
|
|
if ((x + width) > area_width)
|
|
width = area_width - x;
|
|
if ((y + height) > area_height)
|
|
height = area_height - y;
|
|
|
|
/* Add area offset. */
|
|
x += area_x;
|
|
y += area_y;
|
|
|
|
dirty (y, height);
|
|
|
|
/* Use fbblit_info to encapsulate rendering. */
|
|
target.mode_info = &framebuffer.render_target->mode_info;
|
|
target.data = framebuffer.render_target->data;
|
|
|
|
grub_video_fb_fill_dispatch (&target, color, x, y,
|
|
width, height);
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
static inline grub_err_t __attribute__ ((always_inline))
|
|
grub_video_fb_blit_source (struct grub_video_fbblit_info *source,
|
|
enum grub_video_blit_operators oper, int x, int y,
|
|
int offset_x, int offset_y,
|
|
unsigned int width, unsigned int height)
|
|
{
|
|
struct grub_video_fbblit_info target;
|
|
unsigned int area_x;
|
|
unsigned int area_y;
|
|
unsigned int area_width;
|
|
unsigned int area_height;
|
|
if (framebuffer.render_target->area_enabled)
|
|
{
|
|
area_x = framebuffer.render_target->area.x;
|
|
area_y = framebuffer.render_target->area.y;
|
|
area_width = framebuffer.render_target->area.width;
|
|
area_height = framebuffer.render_target->area.height;
|
|
x -= framebuffer.render_target->area_offset_x;
|
|
y -= framebuffer.render_target->area_offset_y;
|
|
}
|
|
else
|
|
{
|
|
area_x = framebuffer.render_target->viewport.x;
|
|
area_y = framebuffer.render_target->viewport.y;
|
|
area_width = framebuffer.render_target->viewport.width;
|
|
area_height = framebuffer.render_target->viewport.height;
|
|
}
|
|
|
|
/* Make sure there is something to do. */
|
|
if ((area_width == 0) || (area_height == 0) || (width == 0) || (height == 0))
|
|
return GRUB_ERR_NONE;
|
|
if ((x >= (int)area_width) || (x + (int)width < 0))
|
|
return GRUB_ERR_NONE;
|
|
if ((y >= (int)area_height) || (y + (int)height < 0))
|
|
return GRUB_ERR_NONE;
|
|
if ((x + (int)source->mode_info->width) < 0)
|
|
return GRUB_ERR_NONE;
|
|
if ((y + (int)source->mode_info->height) < 0)
|
|
return GRUB_ERR_NONE;
|
|
if ((offset_x >= (int)source->mode_info->width)
|
|
|| (offset_x + (int)width < 0))
|
|
return GRUB_ERR_NONE;
|
|
if ((offset_y >= (int)source->mode_info->height)
|
|
|| (offset_y + (int)height < 0))
|
|
return GRUB_ERR_NONE;
|
|
|
|
/* If we have negative coordinates, optimize drawing to minimum. */
|
|
if (offset_x < 0)
|
|
{
|
|
width += offset_x;
|
|
x -= offset_x;
|
|
offset_x = 0;
|
|
}
|
|
|
|
if (offset_y < 0)
|
|
{
|
|
height += offset_y;
|
|
y -= offset_y;
|
|
offset_y = 0;
|
|
}
|
|
|
|
if (x < 0)
|
|
{
|
|
width += x;
|
|
offset_x -= x;
|
|
x = 0;
|
|
}
|
|
|
|
if (y < 0)
|
|
{
|
|
height += y;
|
|
offset_y -= y;
|
|
y = 0;
|
|
}
|
|
|
|
/* Do not allow drawing out of area. */
|
|
if ((x + width) > area_width)
|
|
width = area_width - x;
|
|
if ((y + height) > area_height)
|
|
height = area_height - y;
|
|
|
|
if ((offset_x + width) > source->mode_info->width)
|
|
width = source->mode_info->width - offset_x;
|
|
if ((offset_y + height) > source->mode_info->height)
|
|
height = source->mode_info->height - offset_y;
|
|
|
|
/* Limit drawing to source render target dimensions. */
|
|
if (width > source->mode_info->width)
|
|
width = source->mode_info->width;
|
|
|
|
if (height > source->mode_info->height)
|
|
height = source->mode_info->height;
|
|
|
|
/* Add viewport offset. */
|
|
x += area_x;
|
|
y += area_y;
|
|
|
|
/* Use fbblit_info to encapsulate rendering. */
|
|
target.mode_info = &framebuffer.render_target->mode_info;
|
|
target.data = framebuffer.render_target->data;
|
|
|
|
/* Do actual blitting. */
|
|
dirty (y, height);
|
|
grub_video_fb_dispatch_blit (&target, source, oper, x, y, width, height,
|
|
offset_x, offset_y);
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_blit_bitmap (struct grub_video_bitmap *bitmap,
|
|
enum grub_video_blit_operators oper, int x, int y,
|
|
int offset_x, int offset_y,
|
|
unsigned int width, unsigned int height)
|
|
{
|
|
struct grub_video_fbblit_info source_info;
|
|
source_info.mode_info = &bitmap->mode_info;
|
|
source_info.data = bitmap->data;
|
|
|
|
return grub_video_fb_blit_source (&source_info, oper, x, y,
|
|
offset_x, offset_y, width, height);
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_blit_render_target (struct grub_video_fbrender_target *source,
|
|
enum grub_video_blit_operators oper,
|
|
int x, int y, int offset_x, int offset_y,
|
|
unsigned int width, unsigned int height)
|
|
{
|
|
struct grub_video_fbblit_info source_info;
|
|
source_info.mode_info = &source->mode_info;
|
|
source_info.data = source->data;
|
|
|
|
return grub_video_fb_blit_source (&source_info, oper, x, y,
|
|
offset_x, offset_y, width, height);
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_scroll (grub_video_color_t color, int dx, int dy)
|
|
{
|
|
int width;
|
|
int height;
|
|
int src_x;
|
|
int src_y;
|
|
int dst_x;
|
|
int dst_y;
|
|
|
|
/* 1. Check if we have something to do. */
|
|
if ((dx == 0) && (dy == 0))
|
|
return GRUB_ERR_NONE;
|
|
|
|
width = framebuffer.render_target->viewport.width - grub_abs (dx);
|
|
height = framebuffer.render_target->viewport.height - grub_abs (dy);
|
|
|
|
dirty (framebuffer.render_target->viewport.y,
|
|
framebuffer.render_target->viewport.height);
|
|
|
|
if (dx < 0)
|
|
{
|
|
src_x = framebuffer.render_target->viewport.x - dx;
|
|
dst_x = framebuffer.render_target->viewport.x;
|
|
}
|
|
else
|
|
{
|
|
src_x = framebuffer.render_target->viewport.x;
|
|
dst_x = framebuffer.render_target->viewport.x + dx;
|
|
}
|
|
|
|
if (dy < 0)
|
|
{
|
|
src_y = framebuffer.render_target->viewport.y - dy;
|
|
dst_y = framebuffer.render_target->viewport.y;
|
|
}
|
|
else
|
|
{
|
|
src_y = framebuffer.render_target->viewport.y;
|
|
dst_y = framebuffer.render_target->viewport.y + dy;
|
|
}
|
|
|
|
/* 2. Check if there is need to copy data. */
|
|
if ((grub_abs (dx) < framebuffer.render_target->viewport.width)
|
|
&& (grub_abs (dy) < framebuffer.render_target->viewport.height))
|
|
{
|
|
/* 3. Move data in render target. */
|
|
struct grub_video_fbblit_info target;
|
|
int i, j;
|
|
int linedelta, linelen;
|
|
|
|
target.mode_info = &framebuffer.render_target->mode_info;
|
|
target.data = framebuffer.render_target->data;
|
|
|
|
linedelta = target.mode_info->pitch
|
|
- width * target.mode_info->bytes_per_pixel;
|
|
linelen = width * target.mode_info->bytes_per_pixel;
|
|
#define DO_SCROLL \
|
|
/* Check vertical direction of the move. */ \
|
|
if (dy < 0 || (dy == 0 && dx < 0)) \
|
|
{ \
|
|
dst = (void *) grub_video_fb_get_video_ptr (&target, \
|
|
dst_x, dst_y); \
|
|
src = (void *) grub_video_fb_get_video_ptr (&target, \
|
|
src_x, src_y); \
|
|
/* 3a. Move data upwards. */ \
|
|
for (j = 0; j < height; j++) \
|
|
{ \
|
|
for (i = 0; i < linelen; i++) \
|
|
*(dst++) = *(src++); \
|
|
dst += linedelta; \
|
|
src += linedelta; \
|
|
} \
|
|
} \
|
|
else \
|
|
{ \
|
|
/* 3b. Move data downwards. */ \
|
|
dst = (void *) grub_video_fb_get_video_ptr (&target, \
|
|
dst_x + width, \
|
|
dst_y + height - 1); \
|
|
src = (void *) grub_video_fb_get_video_ptr (&target, \
|
|
src_x + width, \
|
|
src_y + height - 1); \
|
|
dst--; \
|
|
src--; \
|
|
for (j = 0; j < height; j++) \
|
|
{ \
|
|
for (i = 0; i < linelen; i++) \
|
|
*(dst--) = *(src--); \
|
|
dst -= linedelta; \
|
|
src -= linedelta; \
|
|
} \
|
|
}
|
|
|
|
/* If everything is aligned on 32-bit use 32-bit copy. */
|
|
if ((grub_addr_t) grub_video_fb_get_video_ptr (&target, src_x, src_y)
|
|
% sizeof (grub_uint32_t) == 0
|
|
&& (grub_addr_t) grub_video_fb_get_video_ptr (&target, dst_x, dst_y)
|
|
% sizeof (grub_uint32_t) == 0
|
|
&& linelen % sizeof (grub_uint32_t) == 0
|
|
&& linedelta % sizeof (grub_uint32_t) == 0)
|
|
{
|
|
grub_uint32_t *src, *dst;
|
|
linelen /= sizeof (grub_uint32_t);
|
|
linedelta /= sizeof (grub_uint32_t);
|
|
DO_SCROLL
|
|
}
|
|
/* If everything is aligned on 16-bit use 16-bit copy. */
|
|
else if ((grub_addr_t) grub_video_fb_get_video_ptr (&target, src_x, src_y)
|
|
% sizeof (grub_uint16_t) == 0
|
|
&& (grub_addr_t) grub_video_fb_get_video_ptr (&target,
|
|
dst_x, dst_y)
|
|
% sizeof (grub_uint16_t) == 0
|
|
&& linelen % sizeof (grub_uint16_t) == 0
|
|
&& linedelta % sizeof (grub_uint16_t) == 0)
|
|
{
|
|
grub_uint16_t *src, *dst;
|
|
linelen /= sizeof (grub_uint16_t);
|
|
linedelta /= sizeof (grub_uint16_t);
|
|
DO_SCROLL
|
|
}
|
|
/* If not aligned at all use 8-bit copy. */
|
|
else
|
|
{
|
|
grub_uint8_t *src, *dst;
|
|
DO_SCROLL
|
|
}
|
|
}
|
|
|
|
/* 4. Fill empty space with specified color. In this implementation
|
|
there might be colliding areas but at the moment there is no need
|
|
to optimize this. */
|
|
|
|
/* 4a. Fill top & bottom parts. */
|
|
if (dy > 0)
|
|
grub_video_fb_fill_rect (color, 0, 0, framebuffer.render_target->viewport.width, dy);
|
|
else if (dy < 0)
|
|
{
|
|
if (framebuffer.render_target->viewport.height < grub_abs (dy))
|
|
dy = -framebuffer.render_target->viewport.height;
|
|
|
|
grub_video_fb_fill_rect (color, 0, framebuffer.render_target->viewport.height + dy,
|
|
framebuffer.render_target->viewport.width, -dy);
|
|
}
|
|
|
|
/* 4b. Fill left & right parts. */
|
|
if (dx > 0)
|
|
grub_video_fb_fill_rect (color, 0, 0,
|
|
dx, framebuffer.render_target->viewport.height);
|
|
else if (dx < 0)
|
|
{
|
|
if (framebuffer.render_target->viewport.width < grub_abs (dx))
|
|
dx = -framebuffer.render_target->viewport.width;
|
|
|
|
grub_video_fb_fill_rect (color, framebuffer.render_target->viewport.width + dx, 0,
|
|
-dx, framebuffer.render_target->viewport.height);
|
|
}
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
|
|
grub_err_t
|
|
grub_video_fb_create_render_target (struct grub_video_fbrender_target **result,
|
|
unsigned int width, unsigned int height,
|
|
unsigned int mode_type __attribute__ ((unused)))
|
|
{
|
|
struct grub_video_fbrender_target *target;
|
|
unsigned int size;
|
|
|
|
/* Validate arguments. */
|
|
if ((! result)
|
|
|| (width == 0)
|
|
|| (height == 0))
|
|
return grub_error (GRUB_ERR_BUG,
|
|
"invalid argument given");
|
|
|
|
/* Allocate memory for render target. */
|
|
target = grub_malloc (sizeof (struct grub_video_fbrender_target));
|
|
if (! target)
|
|
return grub_errno;
|
|
|
|
/* TODO: Implement other types too.
|
|
Currently only 32bit render targets are supported. */
|
|
|
|
/* Mark render target as allocated. */
|
|
target->is_allocated = 1;
|
|
|
|
/* Maximize viewport, region and area. */
|
|
target->viewport.x = 0;
|
|
target->viewport.y = 0;
|
|
target->viewport.width = width;
|
|
target->viewport.height = height;
|
|
|
|
target->region.x = 0;
|
|
target->region.y = 0;
|
|
target->region.width = width;
|
|
target->region.height = height;
|
|
|
|
target->area_enabled = 0;
|
|
target->area.x = 0;
|
|
target->area.y = 0;
|
|
target->area.width = width;
|
|
target->area.height = height;
|
|
target->area_offset_x = 0;
|
|
target->area_offset_y = 0;
|
|
|
|
/* Setup render target format. */
|
|
target->mode_info.width = width;
|
|
target->mode_info.height = height;
|
|
switch (mode_type)
|
|
{
|
|
case GRUB_VIDEO_MODE_TYPE_INDEX_COLOR
|
|
| GRUB_VIDEO_MODE_TYPE_ALPHA:
|
|
target->mode_info.mode_type = GRUB_VIDEO_MODE_TYPE_INDEX_COLOR
|
|
| GRUB_VIDEO_MODE_TYPE_ALPHA;
|
|
target->mode_info.bpp = 8;
|
|
target->mode_info.bytes_per_pixel = 1;
|
|
target->mode_info.number_of_colors = 16;
|
|
target->mode_info.blit_format = GRUB_VIDEO_BLIT_FORMAT_INDEXCOLOR_ALPHA;
|
|
break;
|
|
default:
|
|
target->mode_info.mode_type = GRUB_VIDEO_MODE_TYPE_RGB
|
|
| GRUB_VIDEO_MODE_TYPE_ALPHA;
|
|
target->mode_info.bpp = 32;
|
|
target->mode_info.bytes_per_pixel = 4;
|
|
target->mode_info.red_mask_size = 8;
|
|
target->mode_info.red_field_pos = 0;
|
|
target->mode_info.green_mask_size = 8;
|
|
target->mode_info.green_field_pos = 8;
|
|
target->mode_info.blue_mask_size = 8;
|
|
target->mode_info.blue_field_pos = 16;
|
|
target->mode_info.reserved_mask_size = 8;
|
|
target->mode_info.reserved_field_pos = 24;
|
|
target->mode_info.number_of_colors = framebuffer.palette_size; /* Emulated palette. */
|
|
target->mode_info.blit_format = GRUB_VIDEO_BLIT_FORMAT_RGBA_8888;
|
|
break;
|
|
}
|
|
target->mode_info.pitch = target->mode_info.bytes_per_pixel * width;
|
|
|
|
/* Calculate size needed for the data. */
|
|
size = (width * target->mode_info.bytes_per_pixel) * height;
|
|
|
|
target->data = grub_malloc (size);
|
|
if (! target->data)
|
|
{
|
|
grub_free (target);
|
|
return grub_errno;
|
|
}
|
|
|
|
/* Clear render target with black and maximum transparency. */
|
|
if (mode_type == (GRUB_VIDEO_MODE_TYPE_INDEX_COLOR
|
|
| GRUB_VIDEO_MODE_TYPE_ALPHA))
|
|
grub_memset (target->data, 0xf0, size);
|
|
else
|
|
grub_memset (target->data, 0, size);
|
|
|
|
/* TODO: Add render target to render target list. */
|
|
|
|
/* Save result to caller. */
|
|
*result = target;
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_create_render_target_from_pointer (struct grub_video_fbrender_target **result,
|
|
const struct grub_video_mode_info *mode_info,
|
|
void *ptr)
|
|
{
|
|
struct grub_video_fbrender_target *target;
|
|
unsigned y;
|
|
|
|
#ifndef GRUB_HAVE_UNALIGNED_ACCESS
|
|
if (!(mode_info->bytes_per_pixel & (mode_info->bytes_per_pixel - 1))
|
|
&& ((grub_addr_t) ptr & (mode_info->bytes_per_pixel - 1)))
|
|
return grub_error (GRUB_ERR_BAD_ARGUMENT, "unaligned pointer");
|
|
if (!(mode_info->bytes_per_pixel & (mode_info->bytes_per_pixel - 1))
|
|
&& (mode_info->pitch & (mode_info->bytes_per_pixel - 1)))
|
|
return grub_error (GRUB_ERR_BAD_ARGUMENT, "unaligned pitch");
|
|
#endif
|
|
|
|
/* Allocate memory for render target. */
|
|
target = grub_malloc (sizeof (struct grub_video_fbrender_target));
|
|
if (! target)
|
|
return grub_errno;
|
|
|
|
/* Mark framebuffer memory as non allocated. */
|
|
target->is_allocated = 0;
|
|
target->data = ptr;
|
|
|
|
grub_memcpy (&(target->mode_info), mode_info, sizeof (target->mode_info));
|
|
|
|
/* Reset viewport, region and area to match new mode. */
|
|
target->viewport.x = 0;
|
|
target->viewport.y = 0;
|
|
target->viewport.width = mode_info->width;
|
|
target->viewport.height = mode_info->height;
|
|
|
|
target->region.x = 0;
|
|
target->region.y = 0;
|
|
target->region.width = mode_info->width;
|
|
target->region.height = mode_info->height;
|
|
|
|
target->area_enabled = 0;
|
|
target->area.x = 0;
|
|
target->area.y = 0;
|
|
target->area.width = mode_info->width;
|
|
target->area.height = mode_info->height;
|
|
target->area_offset_x = 0;
|
|
target->area_offset_y = 0;
|
|
|
|
/* Clear render target with black and maximum transparency. */
|
|
for (y = 0; y < mode_info->height; y++)
|
|
grub_memset (target->data + mode_info->pitch * y, 0,
|
|
mode_info->bytes_per_pixel * mode_info->width);
|
|
|
|
/* Save result to caller. */
|
|
*result = target;
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_delete_render_target (struct grub_video_fbrender_target *target)
|
|
{
|
|
/* If there is no target, then just return without error. */
|
|
if (! target)
|
|
return GRUB_ERR_NONE;
|
|
|
|
/* TODO: Delist render target from render target list. */
|
|
|
|
/* If this is software render target, free it's memory. */
|
|
if (target->is_allocated)
|
|
grub_free (target->data);
|
|
|
|
/* Free render target. */
|
|
grub_free (target);
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_set_active_render_target (struct grub_video_fbrender_target *target)
|
|
{
|
|
if (target == (struct grub_video_fbrender_target *)
|
|
GRUB_VIDEO_RENDER_TARGET_DISPLAY)
|
|
target = framebuffer.back_target;
|
|
|
|
if (! target->data)
|
|
return grub_error (GRUB_ERR_BUG,
|
|
"invalid render target given");
|
|
|
|
framebuffer.render_target = target;
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_get_active_render_target (struct grub_video_fbrender_target **target)
|
|
{
|
|
*target = framebuffer.render_target;
|
|
|
|
if (*target == framebuffer.back_target)
|
|
*target = (struct grub_video_fbrender_target *) GRUB_VIDEO_RENDER_TARGET_DISPLAY;
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
static grub_err_t
|
|
doublebuf_blit_update_screen (void)
|
|
{
|
|
if (framebuffer.current_dirty.first_line
|
|
<= framebuffer.current_dirty.last_line)
|
|
grub_memcpy ((char *) framebuffer.pages[0]
|
|
+ framebuffer.current_dirty.first_line
|
|
* framebuffer.back_target->mode_info.pitch,
|
|
(char *) framebuffer.back_target->data
|
|
+ framebuffer.current_dirty.first_line
|
|
* framebuffer.back_target->mode_info.pitch,
|
|
framebuffer.back_target->mode_info.pitch
|
|
* (framebuffer.current_dirty.last_line
|
|
- framebuffer.current_dirty.first_line));
|
|
framebuffer.current_dirty.first_line
|
|
= framebuffer.back_target->mode_info.height;
|
|
framebuffer.current_dirty.last_line = 0;
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
static grub_err_t
|
|
grub_video_fb_doublebuf_blit_init (struct grub_video_fbrender_target **back,
|
|
struct grub_video_mode_info mode_info,
|
|
volatile void *framebuf)
|
|
{
|
|
grub_err_t err;
|
|
grub_size_t page_size = mode_info.pitch * mode_info.height;
|
|
|
|
framebuffer.offscreen_buffer = grub_zalloc (page_size);
|
|
if (! framebuffer.offscreen_buffer)
|
|
return grub_errno;
|
|
|
|
err = grub_video_fb_create_render_target_from_pointer (&framebuffer.back_target,
|
|
&mode_info,
|
|
framebuffer.offscreen_buffer);
|
|
|
|
if (err)
|
|
{
|
|
grub_free (framebuffer.offscreen_buffer);
|
|
framebuffer.offscreen_buffer = 0;
|
|
return grub_errno;
|
|
}
|
|
(*back)->is_allocated = 1;
|
|
|
|
framebuffer.update_screen = doublebuf_blit_update_screen;
|
|
framebuffer.pages[0] = framebuf;
|
|
framebuffer.displayed_page = 0;
|
|
framebuffer.render_page = 0;
|
|
framebuffer.current_dirty.first_line = mode_info.height;
|
|
framebuffer.current_dirty.last_line = 0;
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
static grub_err_t
|
|
doublebuf_pageflipping_update_screen (void)
|
|
{
|
|
int new_displayed_page;
|
|
grub_err_t err;
|
|
int first_line, last_line;
|
|
|
|
first_line = framebuffer.current_dirty.first_line;
|
|
last_line = framebuffer.current_dirty.last_line;
|
|
if (first_line > framebuffer.previous_dirty.first_line)
|
|
first_line = framebuffer.previous_dirty.first_line;
|
|
if (last_line < framebuffer.previous_dirty.last_line)
|
|
last_line = framebuffer.previous_dirty.last_line;
|
|
|
|
if (first_line <= last_line)
|
|
grub_memcpy ((char *) framebuffer.pages[framebuffer.render_page]
|
|
+ first_line * framebuffer.back_target->mode_info.pitch,
|
|
(char *) framebuffer.back_target->data
|
|
+ first_line * framebuffer.back_target->mode_info.pitch,
|
|
framebuffer.back_target->mode_info.pitch
|
|
* (last_line - first_line));
|
|
framebuffer.previous_dirty = framebuffer.current_dirty;
|
|
framebuffer.current_dirty.first_line
|
|
= framebuffer.back_target->mode_info.height;
|
|
framebuffer.current_dirty.last_line = 0;
|
|
|
|
/* Swap the page numbers in the framebuffer struct. */
|
|
new_displayed_page = framebuffer.render_page;
|
|
framebuffer.render_page = framebuffer.displayed_page;
|
|
framebuffer.displayed_page = new_displayed_page;
|
|
|
|
err = framebuffer.set_page (framebuffer.displayed_page);
|
|
if (err)
|
|
{
|
|
/* Restore previous state. */
|
|
framebuffer.render_page = framebuffer.displayed_page;
|
|
framebuffer.displayed_page = new_displayed_page;
|
|
return err;
|
|
}
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
static grub_err_t
|
|
doublebuf_pageflipping_init (struct grub_video_mode_info *mode_info,
|
|
volatile void *page0_ptr,
|
|
grub_video_fb_set_page_t set_page_in,
|
|
volatile void *page1_ptr)
|
|
{
|
|
grub_err_t err;
|
|
grub_size_t page_size = mode_info->pitch * mode_info->height;
|
|
|
|
framebuffer.offscreen_buffer = grub_malloc (page_size);
|
|
if (! framebuffer.offscreen_buffer)
|
|
{
|
|
return grub_errno;
|
|
}
|
|
|
|
err = grub_video_fb_create_render_target_from_pointer (&framebuffer.back_target,
|
|
mode_info,
|
|
framebuffer.offscreen_buffer);
|
|
|
|
if (err)
|
|
{
|
|
grub_free (framebuffer.offscreen_buffer);
|
|
framebuffer.offscreen_buffer = 0;
|
|
return grub_errno;
|
|
}
|
|
framebuffer.back_target->is_allocated = 1;
|
|
|
|
framebuffer.displayed_page = 0;
|
|
framebuffer.render_page = 1;
|
|
|
|
framebuffer.update_screen = doublebuf_pageflipping_update_screen;
|
|
framebuffer.pages[0] = page0_ptr;
|
|
framebuffer.pages[1] = page1_ptr;
|
|
|
|
framebuffer.current_dirty.first_line
|
|
= framebuffer.back_target->mode_info.height;
|
|
framebuffer.current_dirty.last_line = 0;
|
|
framebuffer.previous_dirty.first_line
|
|
= framebuffer.back_target->mode_info.height;
|
|
framebuffer.previous_dirty.last_line = 0;
|
|
|
|
/* Set the framebuffer memory data pointer and display the right page. */
|
|
err = set_page_in (framebuffer.displayed_page);
|
|
if (err)
|
|
{
|
|
grub_video_fb_delete_render_target (framebuffer.back_target);
|
|
return err;
|
|
}
|
|
framebuffer.set_page = set_page_in;
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
/* Select the best double buffering mode available. */
|
|
grub_err_t
|
|
grub_video_fb_setup (unsigned int mode_type, unsigned int mode_mask,
|
|
struct grub_video_mode_info *mode_info,
|
|
volatile void *page0_ptr,
|
|
grub_video_fb_set_page_t set_page_in,
|
|
volatile void *page1_ptr)
|
|
{
|
|
grub_err_t err;
|
|
|
|
/* Do double buffering only if it's either requested or efficient. */
|
|
if (set_page_in && grub_video_check_mode_flag (mode_type, mode_mask,
|
|
GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED,
|
|
1))
|
|
{
|
|
mode_info->mode_type |= GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED;
|
|
mode_info->mode_type |= GRUB_VIDEO_MODE_TYPE_UPDATING_SWAP;
|
|
|
|
err = doublebuf_pageflipping_init (mode_info, page0_ptr,
|
|
set_page_in,
|
|
page1_ptr);
|
|
if (!err)
|
|
{
|
|
framebuffer.render_target = framebuffer.back_target;
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
mode_info->mode_type &= ~(GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED
|
|
| GRUB_VIDEO_MODE_TYPE_UPDATING_SWAP);
|
|
|
|
grub_errno = GRUB_ERR_NONE;
|
|
}
|
|
|
|
if (grub_video_check_mode_flag (mode_type, mode_mask,
|
|
GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED,
|
|
1))
|
|
{
|
|
/* It was much nicer with the cast directly at function call but
|
|
some older gcc versions don't accept it properly.*/
|
|
void *tmp = (void *) page0_ptr;
|
|
mode_info->mode_type |= (GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED
|
|
| GRUB_VIDEO_MODE_TYPE_UPDATING_SWAP);
|
|
|
|
err = grub_video_fb_doublebuf_blit_init (&framebuffer.back_target,
|
|
*mode_info,
|
|
tmp);
|
|
|
|
if (!err)
|
|
{
|
|
framebuffer.render_target = framebuffer.back_target;
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
mode_info->mode_type &= ~(GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED
|
|
| GRUB_VIDEO_MODE_TYPE_UPDATING_SWAP);
|
|
|
|
grub_errno = GRUB_ERR_NONE;
|
|
}
|
|
|
|
/* Fall back to no double buffering. */
|
|
err = grub_video_fb_create_render_target_from_pointer (&framebuffer.back_target,
|
|
mode_info,
|
|
(void *) page0_ptr);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
framebuffer.update_screen = 0;
|
|
framebuffer.pages[0] = page0_ptr;
|
|
framebuffer.displayed_page = 0;
|
|
framebuffer.render_page = 0;
|
|
framebuffer.set_page = 0;
|
|
framebuffer.current_dirty.first_line
|
|
= framebuffer.back_target->mode_info.height;
|
|
framebuffer.current_dirty.last_line = 0;
|
|
|
|
mode_info->mode_type &= ~GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED;
|
|
|
|
framebuffer.render_target = framebuffer.back_target;
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
|
|
grub_err_t
|
|
grub_video_fb_swap_buffers (void)
|
|
{
|
|
grub_err_t err;
|
|
if (!framebuffer.update_screen)
|
|
return GRUB_ERR_NONE;
|
|
|
|
err = framebuffer.update_screen ();
|
|
if (err)
|
|
return err;
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_video_fb_get_info_and_fini (struct grub_video_mode_info *mode_info,
|
|
void **framebuf)
|
|
{
|
|
grub_memcpy (mode_info, &(framebuffer.back_target->mode_info),
|
|
sizeof (*mode_info));
|
|
|
|
/* We are about to load a kernel. Switch back to page zero, since some
|
|
kernel drivers expect that. */
|
|
if (framebuffer.set_page && framebuffer.displayed_page != 0)
|
|
{
|
|
framebuffer.update_screen ();
|
|
}
|
|
|
|
*framebuf = (void *) framebuffer.pages[framebuffer.displayed_page];
|
|
|
|
grub_video_fb_fini ();
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|