From 041d1ea37802bf7178a31a53f96c26efa6b8fb7b Mon Sep 17 00:00:00 2001 From: James Date: Fri, 16 Nov 2012 10:41:01 +0000 Subject: fish --- grub-core/video/fb/fbfill.c | 177 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 177 insertions(+) create mode 100644 grub-core/video/fb/fbfill.c (limited to 'grub-core/video/fb/fbfill.c') diff --git a/grub-core/video/fb/fbfill.c b/grub-core/video/fb/fbfill.c new file mode 100644 index 0000000..a4ca7c2 --- /dev/null +++ b/grub-core/video/fb/fbfill.c @@ -0,0 +1,177 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2006,2007,2008 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 . + */ + +/* SPECIAL NOTES! + + Please note following when reading the code below: + + - In this driver we assume that every memory can be accessed by same memory + bus. If there are different address spaces do not use this code as a base + code for other archs. + + - Every function in this code assumes that bounds checking has been done in + previous phase and they are opted out in here. */ + +#include +#include +#include +#include +#include + +/* Generic filler that works for every supported mode. */ +void +grub_video_fbfill (struct grub_video_fbblit_info *dst, + grub_video_color_t color, int x, int y, + int width, int height) +{ + int i; + int j; + + for (j = 0; j < height; j++) + for (i = 0; i < width; i++) + set_pixel (dst, x + i, y + j, color); +} + +/* Optimized filler for direct color 32 bit modes. It is assumed that color + is already mapped to destination format. */ +void +grub_video_fbfill_direct32 (struct grub_video_fbblit_info *dst, + grub_video_color_t color, int x, int y, + int width, int height) +{ + int i; + int j; + grub_uint32_t *dstptr; + grub_size_t rowskip; + + /* Calculate the number of bytes to advance from the end of one line + to the beginning of the next line. */ + rowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; + + /* Get the start address. */ + dstptr = (grub_uint32_t *) grub_video_fb_get_video_ptr (dst, x, y); + + for (j = 0; j < height; j++) + { + for (i = 0; i < width; i++) + *dstptr++ = color; + + /* Advance the dest pointer to the right location on the next line. */ + dstptr = (grub_uint32_t *) (((char *) dstptr) + rowskip); + } +} + +/* Optimized filler for direct color 24 bit modes. It is assumed that color + is already mapped to destination format. */ +void +grub_video_fbfill_direct24 (struct grub_video_fbblit_info *dst, + grub_video_color_t color, int x, int y, + int width, int height) +{ + int i; + int j; + grub_size_t rowskip; + grub_uint8_t *dstptr; + grub_uint8_t fill0 = (grub_uint8_t)((color >> 0) & 0xFF); + grub_uint8_t fill1 = (grub_uint8_t)((color >> 8) & 0xFF); + grub_uint8_t fill2 = (grub_uint8_t)((color >> 16) & 0xFF); + + /* Calculate the number of bytes to advance from the end of one line + to the beginning of the next line. */ + rowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; + + /* Get the start address. */ + dstptr = (grub_uint8_t *) grub_video_fb_get_video_ptr (dst, x, y); + + for (j = 0; j < height; j++) + { + for (i = 0; i < width; i++) + { + *dstptr++ = fill0; + *dstptr++ = fill1; + *dstptr++ = fill2; + } + + /* Advance the dest pointer to the right location on the next line. */ + dstptr += rowskip; + } +} + +/* Optimized filler for direct color 16 bit modes. It is assumed that color + is already mapped to destination format. */ +void +grub_video_fbfill_direct16 (struct grub_video_fbblit_info *dst, + grub_video_color_t color, int x, int y, + int width, int height) +{ + int i; + int j; + grub_size_t rowskip; + grub_uint8_t *dstptr; + grub_uint8_t fill0 = (grub_uint8_t)((color >> 0) & 0xFF); + grub_uint8_t fill1 = (grub_uint8_t)((color >> 8) & 0xFF); + + /* Calculate the number of bytes to advance from the end of one line + to the beginning of the next line. */ + rowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; + + /* Get the start address. */ + dstptr = (grub_uint8_t *) grub_video_fb_get_video_ptr (dst, x, y); + + for (j = 0; j < height; j++) + { + for (i = 0; i < width; i++) + { + *dstptr++ = fill0; + *dstptr++ = fill1; + } + + /* Advance the dest pointer to the right location on the next line. */ + dstptr += rowskip; + } +} + +/* Optimized filler for index color. It is assumed that color + is already mapped to destination format. */ +void +grub_video_fbfill_direct8 (struct grub_video_fbblit_info *dst, + grub_video_color_t color, int x, int y, + int width, int height) +{ + int i; + int j; + grub_size_t rowskip; + grub_uint8_t *dstptr; + grub_uint8_t fill = (grub_uint8_t)color & 0xFF; + + /* Calculate the number of bytes to advance from the end of one line + to the beginning of the next line. */ + rowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; + + /* Get the start address. */ + dstptr = (grub_uint8_t *) grub_video_fb_get_video_ptr (dst, x, y); + + for (j = 0; j < height; j++) + { + for (i = 0; i < width; i++) + *dstptr++ = fill; + + /* Advance the dest pointer to the right location on the next line. */ + dstptr += rowskip; + } +} -- cgit v1.2.3