2009-08-14 Vladimir Serbinenko <phcoder@gmail.com>
Framebuffer split. * commands/i386/pc/vbetest.c (grub_cmd_vbetest): Restore video subsystem at the end. * conf/common.rmk (pkglib_MODULES): Add video_fb.mod. (video_fb_mod_SOURCES): New variable. (video_fb_mod_CFLAGS): Likewise. (video_fb_mod_LDFLAGS): Likewise. * conf/i386-pc.rmk (vbe_mod_SOURCES): Remove video/i386/pc/vbeblit.c, video/i386/pc/vbefill.c and video/i386/pc/vbeutil.c. * video/i386/pc/vbeblit.c: Moved from here ... * video/fb/fbblit.c: ..here. Replaced 'vbe' with 'fb'. * video/i386/pc/vbefill.c: Moved from here ... * video/fb/fbfill.c: ..here. Replaced 'vbe' with 'fb'. * video/i386/pc/vbeutil.c: Moved from here ... * video/fb/fbutil.c: ..here. Replaced 'vbe' with 'fb'. * include/grub/i386/pc/vbeblit.h: Moved from here ... * include/grub/fbblit.h: ... here. Replaced 'vbe' with 'fb'. * include/grub/i386/pc/vbefill.h: Moved from here ... * include/grub/fbfill.h: ... here. Replaced 'vbe' with 'fb'. * include/grub/i386/pc/vbeutil.h: Moved from here ... * include/grub/fbutil.h: ... here. Replaced 'vbe' with 'fb'. * include/grub/i386/pc/vbe.h: Moved framebuffer part ... * include/grub/video_fb.h: ... here. Replaced 'vbe' with 'fb'. * include/grub/video.h (GRUB_VIDEO_RENDER_TARGET_FRONT_BUFFER): Removed. (GRUB_VIDEO_RENDER_TARGET_BACK_BUFFER): Likewise. (grub_video_adapter): Added 'get_info_and_fini'. (grub_video_get_info_and_fini): New prototype. (grub_video_set_mode): make modestring const char *. * loader/i386/linux.c (grub_linux_setup_video): Use grub_video_get_info_and_fini. (grub_linux_boot): Move modesetting just before booting. * loader/i386/pc/xnu.c (grub_xnu_set_video): Use grub_video_get_info_and_fini. * video/i386/pc/vbe.c: Moved framebuffer part ... * video/fb/video_fb.c: ... here. Replaced 'vbe' with 'fb'. * video/i386/pc/vbe.c (grub_vbe_set_video_mode): Use grub_video_fbstd_colors and grub_video_fb_set_palette. (grub_video_vbe_init): Clear 'framebuffer' variable and use grub_video_fb_init. (grub_video_vbe_fini): Use grub_video_fb_fini. (grub_video_vbe_setup): Use framebuffer.render_target instead of render_target and use grub_video_fb_set_active_render_target and grub_video_fb_set_palette. (grub_video_vbe_set_palette): Use grub_video_fb_set_palette. (grub_video_vbe_set_viewport): Use grub_video_fb_set_viewport. (grub_video_vbe_adapter): Use framebuffer. * video/video.c (grub_video_get_info_and_fini): New function. (grub_video_set_mode): Make modestring const char *. (GRUB_MOD_INIT(video_video)): Don't set variables to 0 since these values are already initialised.
This commit is contained in:
phcoder
parent
d404ee5646
commit
d3539132cd
20 changed files with 1840 additions and 1558 deletions
828
video/fb/fbblit.c
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828
video/fb/fbblit.c
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2006,2007,2008 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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/* SPECIAL NOTES!
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Please note following when reading the code below:
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- In this driver we assume that every memory can be accessed by same memory
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bus. If there are different address spaces do not use this code as a base
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code for other archs.
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- Every function in this code assumes that bounds checking has been done in
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previous phase and they are opted out in here. */
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#include <grub/video_fb.h>
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#include <grub/fbblit.h>
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#include <grub/fbutil.h>
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#include <grub/misc.h>
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#include <grub/types.h>
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#include <grub/video.h>
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/* Generic replacing blitter (slow). Works for every supported format. */
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void
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grub_video_fbblit_replace (struct grub_video_fbblit_info *dst,
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struct grub_video_fbblit_info *src,
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int x, int y, int width, int height,
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int offset_x, int offset_y)
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{
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int i;
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int j;
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grub_uint8_t src_red;
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grub_uint8_t src_green;
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grub_uint8_t src_blue;
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grub_uint8_t src_alpha;
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grub_video_color_t src_color;
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grub_video_color_t dst_color;
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for (j = 0; j < height; j++)
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{
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for (i = 0; i < width; i++)
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{
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src_color = get_pixel (src, i + offset_x, j + offset_y);
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grub_video_fb_unmap_color_int (src, src_color, &src_red, &src_green,
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&src_blue, &src_alpha);
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dst_color = grub_video_fb_map_rgba (src_red, src_green,
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src_blue, src_alpha);
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set_pixel (dst, x + i, y + j, dst_color);
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}
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}
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}
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/* Block copy replacing blitter. Works with modes multiple of 8 bits. */
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void
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grub_video_fbblit_replace_directN (struct grub_video_fbblit_info *dst,
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struct grub_video_fbblit_info *src,
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int x, int y, int width, int height,
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int offset_x, int offset_y)
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{
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int j;
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grub_uint32_t *srcptr;
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grub_uint32_t *dstptr;
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int bpp;
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bpp = src->mode_info->bytes_per_pixel;
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for (j = 0; j < height; j++)
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{
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srcptr = (grub_uint32_t *)get_data_ptr (src, offset_x, j + offset_y);
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dstptr = (grub_uint32_t *)get_data_ptr (dst, x, y + j);
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grub_memmove (dstptr, srcptr, width * bpp);
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}
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}
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/* Optimized replacing blitter for RGBX8888 to BGRX8888. */
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void
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grub_video_fbblit_replace_BGRX8888_RGBX8888 (struct grub_video_fbblit_info *dst,
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struct grub_video_fbblit_info *src,
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int x, int y,
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int width, int height,
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int offset_x, int offset_y)
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{
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int i;
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int j;
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grub_uint8_t *srcptr;
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grub_uint8_t *dstptr;
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unsigned int srcrowskip;
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unsigned int dstrowskip;
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/* Calculate the number of bytes to advance from the end of one line
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to the beginning of the next line. */
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srcrowskip = src->mode_info->pitch - src->mode_info->bytes_per_pixel * width;
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dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width;
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srcptr = (grub_uint8_t *) get_data_ptr (src, offset_x, offset_y);
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dstptr = (grub_uint8_t *) get_data_ptr (dst, x, y);
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for (j = 0; j < height; j++)
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{
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for (i = 0; i < width; i++)
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{
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grub_uint8_t r = *srcptr++;
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grub_uint8_t g = *srcptr++;
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grub_uint8_t b = *srcptr++;
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grub_uint8_t a = *srcptr++;
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*dstptr++ = b;
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*dstptr++ = g;
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*dstptr++ = r;
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*dstptr++ = a;
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}
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srcptr += srcrowskip;
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dstptr += dstrowskip;
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}
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}
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/* Optimized replacing blitter for RGB888 to BGRX8888. */
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void
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grub_video_fbblit_replace_BGRX8888_RGB888 (struct grub_video_fbblit_info *dst,
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struct grub_video_fbblit_info *src,
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int x, int y,
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int width, int height,
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int offset_x, int offset_y)
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{
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int i;
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int j;
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grub_uint8_t *srcptr;
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grub_uint8_t *dstptr;
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unsigned int srcrowskip;
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unsigned int dstrowskip;
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/* Calculate the number of bytes to advance from the end of one line
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to the beginning of the next line. */
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srcrowskip = src->mode_info->pitch - src->mode_info->bytes_per_pixel * width;
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dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width;
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srcptr = (grub_uint8_t *) get_data_ptr (src, offset_x, offset_y);
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dstptr = (grub_uint8_t *) get_data_ptr (dst, x, y);
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for (j = 0; j < height; j++)
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{
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for (i = 0; i < width; i++)
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{
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grub_uint8_t r = *srcptr++;
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grub_uint8_t g = *srcptr++;
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grub_uint8_t b = *srcptr++;
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*dstptr++ = b;
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*dstptr++ = g;
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*dstptr++ = r;
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/* Set alpha component as opaque. */
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*dstptr++ = 255;
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}
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srcptr += srcrowskip;
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dstptr += dstrowskip;
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}
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}
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/* Optimized replacing blitter for RGBX8888 to BGR888. */
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void
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grub_video_fbblit_replace_BGR888_RGBX8888 (struct grub_video_fbblit_info *dst,
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struct grub_video_fbblit_info *src,
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int x, int y,
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int width, int height,
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int offset_x, int offset_y)
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{
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grub_uint32_t *srcptr;
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grub_uint8_t *dstptr;
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unsigned int srcrowskip;
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unsigned int dstrowskip;
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int i;
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int j;
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/* Calculate the number of bytes to advance from the end of one line
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to the beginning of the next line. */
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srcrowskip = src->mode_info->pitch - src->mode_info->bytes_per_pixel * width;
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dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width;
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srcptr = (grub_uint32_t *) get_data_ptr (src, offset_x, offset_y);
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dstptr = (grub_uint8_t *) get_data_ptr (dst, x, y);
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for (j = 0; j < height; j++)
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{
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for (i = 0; i < width; i++)
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{
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grub_uint32_t color;
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grub_uint8_t sr;
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grub_uint8_t sg;
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grub_uint8_t sb;
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color = *srcptr++;
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sr = (color >> 0) & 0xFF;
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sg = (color >> 8) & 0xFF;
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sb = (color >> 16) & 0xFF;
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*dstptr++ = sb;
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*dstptr++ = sg;
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*dstptr++ = sr;
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}
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srcptr = (grub_uint32_t *) (((grub_uint8_t *) srcptr) + srcrowskip);
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dstptr += dstrowskip;
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}
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}
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/* Optimized replacing blitter for RGB888 to BGR888. */
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void
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grub_video_fbblit_replace_BGR888_RGB888 (struct grub_video_fbblit_info *dst,
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struct grub_video_fbblit_info *src,
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int x, int y,
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int width, int height,
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int offset_x, int offset_y)
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{
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int i;
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int j;
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grub_uint8_t *srcptr;
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grub_uint8_t *dstptr;
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unsigned int srcrowskip;
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unsigned int dstrowskip;
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/* Calculate the number of bytes to advance from the end of one line
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to the beginning of the next line. */
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srcrowskip = src->mode_info->pitch - src->mode_info->bytes_per_pixel * width;
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dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width;
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srcptr = (grub_uint8_t *) get_data_ptr (src, offset_x, offset_y);
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dstptr = (grub_uint8_t *) get_data_ptr (dst, x, y);
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for (j = 0; j < height; j++)
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{
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for (i = 0; i < width; i++)
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{
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grub_uint8_t r = *srcptr++;
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grub_uint8_t g = *srcptr++;
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grub_uint8_t b = *srcptr++;
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*dstptr++ = b;
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*dstptr++ = g;
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*dstptr++ = r;
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}
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srcptr += srcrowskip;
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dstptr += dstrowskip;
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}
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}
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/* Optimized replacing blitter for RGB888 to RGBX8888. */
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void
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grub_video_fbblit_replace_RGBX8888_RGB888 (struct grub_video_fbblit_info *dst,
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struct grub_video_fbblit_info *src,
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int x, int y,
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int width, int height,
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int offset_x, int offset_y)
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{
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grub_uint32_t color;
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int i;
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int j;
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grub_uint8_t *srcptr;
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grub_uint32_t *dstptr;
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unsigned int sr;
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unsigned int sg;
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unsigned int sb;
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for (j = 0; j < height; j++)
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{
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srcptr = (grub_uint8_t *)get_data_ptr (src, offset_x, j + offset_y);
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dstptr = (grub_uint32_t *)get_data_ptr (dst, x, y + j);
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for (i = 0; i < width; i++)
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{
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sr = *srcptr++;
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sg = *srcptr++;
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sb = *srcptr++;
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/* Set alpha as opaque. */
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color = 0xFF000000 | (sb << 16) | (sg << 8) | sr;
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*dstptr++ = color;
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}
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}
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}
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/* Optimized replacing blitter for RGBX8888 to RGB888. */
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void
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grub_video_fbblit_replace_RGB888_RGBX8888 (struct grub_video_fbblit_info *dst,
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struct grub_video_fbblit_info *src,
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int x, int y,
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int width, int height,
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int offset_x, int offset_y)
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{
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grub_uint32_t color;
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int i;
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int j;
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grub_uint32_t *srcptr;
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grub_uint8_t *dstptr;
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unsigned int sr;
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unsigned int sg;
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unsigned int sb;
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for (j = 0; j < height; j++)
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{
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srcptr = (grub_uint32_t *)get_data_ptr (src, offset_x, j + offset_y);
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dstptr = (grub_uint8_t *)get_data_ptr (dst, x, y + j);
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for (i = 0; i < width; i++)
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{
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color = *srcptr++;
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sr = (color >> 0) & 0xFF;
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sg = (color >> 8) & 0xFF;
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sb = (color >> 16) & 0xFF;
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*dstptr++ = sr;
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*dstptr++ = sg;
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*dstptr++ = sb;
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}
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}
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}
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/* Optimized replacing blitter for RGBX8888 to indexed color. */
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void
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grub_video_fbblit_replace_index_RGBX8888 (struct grub_video_fbblit_info *dst,
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struct grub_video_fbblit_info *src,
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int x, int y,
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int width, int height,
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int offset_x, int offset_y)
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{
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grub_uint32_t color;
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int i;
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int j;
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grub_uint32_t *srcptr;
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grub_uint8_t *dstptr;
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unsigned int sr;
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unsigned int sg;
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unsigned int sb;
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for (j = 0; j < height; j++)
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{
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srcptr = (grub_uint32_t *)get_data_ptr (src, offset_x, j + offset_y);
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dstptr = (grub_uint8_t *)get_data_ptr (dst, x, y + j);
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for (i = 0; i < width; i++)
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{
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color = *srcptr++;
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sr = (color >> 0) & 0xFF;
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sg = (color >> 8) & 0xFF;
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sb = (color >> 16) & 0xFF;
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color = grub_video_fb_map_rgb(sr, sg, sb);
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*dstptr++ = color & 0xFF;
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}
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}
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}
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/* Optimized replacing blitter for RGB888 to indexed color. */
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void
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grub_video_fbblit_replace_index_RGB888 (struct grub_video_fbblit_info *dst,
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struct grub_video_fbblit_info *src,
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int x, int y,
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int width, int height,
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int offset_x, int offset_y)
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{
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grub_uint32_t color;
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int i;
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int j;
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grub_uint8_t *srcptr;
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grub_uint8_t *dstptr;
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unsigned int sr;
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unsigned int sg;
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unsigned int sb;
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for (j = 0; j < height; j++)
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{
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srcptr = (grub_uint8_t *)get_data_ptr (src, offset_x, j + offset_y);
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dstptr = (grub_uint8_t *)get_data_ptr (dst, x, y + j);
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for (i = 0; i < width; i++)
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{
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sr = *srcptr++;
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sg = *srcptr++;
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sb = *srcptr++;
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color = grub_video_fb_map_rgb(sr, sg, sb);
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*dstptr++ = color & 0xFF;
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}
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}
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}
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/* Generic blending blitter. Works for every supported format. */
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void
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grub_video_fbblit_blend (struct grub_video_fbblit_info *dst,
|
||||
struct grub_video_fbblit_info *src,
|
||||
int x, int y, int width, int height,
|
||||
int offset_x, int offset_y)
|
||||
{
|
||||
int i;
|
||||
int j;
|
||||
|
||||
for (j = 0; j < height; j++)
|
||||
{
|
||||
for (i = 0; i < width; i++)
|
||||
{
|
||||
grub_uint8_t src_red;
|
||||
grub_uint8_t src_green;
|
||||
grub_uint8_t src_blue;
|
||||
grub_uint8_t src_alpha;
|
||||
grub_uint8_t dst_red;
|
||||
grub_uint8_t dst_green;
|
||||
grub_uint8_t dst_blue;
|
||||
grub_uint8_t dst_alpha;
|
||||
grub_video_color_t src_color;
|
||||
grub_video_color_t dst_color;
|
||||
|
||||
src_color = get_pixel (src, i + offset_x, j + offset_y);
|
||||
grub_video_fb_unmap_color_int (src, src_color, &src_red, &src_green,
|
||||
&src_blue, &src_alpha);
|
||||
|
||||
if (src_alpha == 0)
|
||||
continue;
|
||||
|
||||
if (src_alpha == 255)
|
||||
{
|
||||
dst_color = grub_video_fb_map_rgba (src_red, src_green,
|
||||
src_blue, src_alpha);
|
||||
set_pixel (dst, x + i, y + j, dst_color);
|
||||
continue;
|
||||
}
|
||||
|
||||
dst_color = get_pixel (dst, x + i, y + j);
|
||||
|
||||
grub_video_fb_unmap_color_int (dst, dst_color, &dst_red,
|
||||
&dst_green, &dst_blue, &dst_alpha);
|
||||
|
||||
dst_red = (((src_red * src_alpha)
|
||||
+ (dst_red * (255 - src_alpha))) / 255);
|
||||
dst_green = (((src_green * src_alpha)
|
||||
+ (dst_green * (255 - src_alpha))) / 255);
|
||||
dst_blue = (((src_blue * src_alpha)
|
||||
+ (dst_blue * (255 - src_alpha))) / 255);
|
||||
|
||||
dst_alpha = src_alpha;
|
||||
dst_color = grub_video_fb_map_rgba (dst_red, dst_green, dst_blue,
|
||||
dst_alpha);
|
||||
|
||||
set_pixel (dst, x + i, y + j, dst_color);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Optimized blending blitter for RGBA8888 to BGRA8888. */
|
||||
void
|
||||
grub_video_fbblit_blend_BGRA8888_RGBA8888 (struct grub_video_fbblit_info *dst,
|
||||
struct grub_video_fbblit_info *src,
|
||||
int x, int y,
|
||||
int width, int height,
|
||||
int offset_x, int offset_y)
|
||||
{
|
||||
grub_uint32_t *srcptr;
|
||||
grub_uint32_t *dstptr;
|
||||
unsigned int srcrowskip;
|
||||
unsigned int dstrowskip;
|
||||
int i;
|
||||
int j;
|
||||
|
||||
/* Calculate the number of bytes to advance from the end of one line
|
||||
to the beginning of the next line. */
|
||||
srcrowskip = src->mode_info->pitch - src->mode_info->bytes_per_pixel * width;
|
||||
dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width;
|
||||
|
||||
srcptr = (grub_uint32_t *) get_data_ptr (src, offset_x, offset_y);
|
||||
dstptr = (grub_uint32_t *) get_data_ptr (dst, x, y);
|
||||
|
||||
for (j = 0; j < height; j++)
|
||||
{
|
||||
for (i = 0; i < width; i++)
|
||||
{
|
||||
grub_uint32_t color;
|
||||
unsigned int sr;
|
||||
unsigned int sg;
|
||||
unsigned int sb;
|
||||
unsigned int a;
|
||||
unsigned int dr;
|
||||
unsigned int dg;
|
||||
unsigned int db;
|
||||
|
||||
color = *srcptr++;
|
||||
|
||||
a = color >> 24;
|
||||
|
||||
if (a == 0)
|
||||
{
|
||||
/* Skip transparent source pixels. */
|
||||
dstptr++;
|
||||
continue;
|
||||
}
|
||||
|
||||
sr = (color >> 0) & 0xFF;
|
||||
sg = (color >> 8) & 0xFF;
|
||||
sb = (color >> 16) & 0xFF;
|
||||
|
||||
if (a == 255)
|
||||
{
|
||||
/* Opaque pixel shortcut. */
|
||||
dr = sr;
|
||||
dg = sg;
|
||||
db = sb;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* General pixel color blending. */
|
||||
color = *dstptr;
|
||||
|
||||
dr = (color >> 16) & 0xFF;
|
||||
dr = (dr * (255 - a) + sr * a) / 255;
|
||||
dg = (color >> 8) & 0xFF;
|
||||
dg = (dg * (255 - a) + sg * a) / 255;
|
||||
db = (color >> 0) & 0xFF;
|
||||
db = (db * (255 - a) + sb * a) / 255;
|
||||
}
|
||||
|
||||
color = (a << 24) | (dr << 16) | (dg << 8) | db;
|
||||
|
||||
*dstptr++ = color;
|
||||
}
|
||||
|
||||
srcptr = (grub_uint32_t *) (((grub_uint8_t *) srcptr) + srcrowskip);
|
||||
dstptr = (grub_uint32_t *) (((grub_uint8_t *) dstptr) + dstrowskip);
|
||||
}
|
||||
}
|
||||
|
||||
/* Optimized blending blitter for RGBA8888 to BGR888. */
|
||||
void
|
||||
grub_video_fbblit_blend_BGR888_RGBA8888 (struct grub_video_fbblit_info *dst,
|
||||
struct grub_video_fbblit_info *src,
|
||||
int x, int y,
|
||||
int width, int height,
|
||||
int offset_x, int offset_y)
|
||||
{
|
||||
grub_uint32_t *srcptr;
|
||||
grub_uint8_t *dstptr;
|
||||
unsigned int srcrowskip;
|
||||
unsigned int dstrowskip;
|
||||
int i;
|
||||
int j;
|
||||
|
||||
/* Calculate the number of bytes to advance from the end of one line
|
||||
to the beginning of the next line. */
|
||||
srcrowskip = src->mode_info->pitch - src->mode_info->bytes_per_pixel * width;
|
||||
dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width;
|
||||
|
||||
srcptr = (grub_uint32_t *) get_data_ptr (src, offset_x, offset_y);
|
||||
dstptr = (grub_uint8_t *) get_data_ptr (dst, x, y);
|
||||
|
||||
for (j = 0; j < height; j++)
|
||||
{
|
||||
for (i = 0; i < width; i++)
|
||||
{
|
||||
grub_uint32_t color;
|
||||
unsigned int sr;
|
||||
unsigned int sg;
|
||||
unsigned int sb;
|
||||
unsigned int a;
|
||||
unsigned int dr;
|
||||
unsigned int dg;
|
||||
unsigned int db;
|
||||
|
||||
color = *srcptr++;
|
||||
|
||||
a = color >> 24;
|
||||
|
||||
if (a == 0)
|
||||
{
|
||||
/* Skip transparent source pixels. */
|
||||
dstptr += 3;
|
||||
continue;
|
||||
}
|
||||
|
||||
sr = (color >> 0) & 0xFF;
|
||||
sg = (color >> 8) & 0xFF;
|
||||
sb = (color >> 16) & 0xFF;
|
||||
|
||||
if (a == 255)
|
||||
{
|
||||
/* Opaque pixel shortcut. */
|
||||
dr = sr;
|
||||
dg = sg;
|
||||
db = sb;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* General pixel color blending. */
|
||||
color = *dstptr;
|
||||
|
||||
db = dstptr[0];
|
||||
db = (db * (255 - a) + sb * a) / 255;
|
||||
dg = dstptr[1];
|
||||
dg = (dg * (255 - a) + sg * a) / 255;
|
||||
dr = dstptr[2];
|
||||
dr = (dr * (255 - a) + sr * a) / 255;
|
||||
}
|
||||
|
||||
*dstptr++ = db;
|
||||
*dstptr++ = dg;
|
||||
*dstptr++ = dr;
|
||||
}
|
||||
|
||||
srcptr = (grub_uint32_t *) (((grub_uint8_t *) srcptr) + srcrowskip);
|
||||
dstptr += dstrowskip;
|
||||
}
|
||||
}
|
||||
|
||||
/* Optimized blending blitter for RGBA888 to RGBA8888. */
|
||||
void
|
||||
grub_video_fbblit_blend_RGBA8888_RGBA8888 (struct grub_video_fbblit_info *dst,
|
||||
struct grub_video_fbblit_info *src,
|
||||
int x, int y,
|
||||
int width, int height,
|
||||
int offset_x, int offset_y)
|
||||
{
|
||||
grub_uint32_t color;
|
||||
int i;
|
||||
int j;
|
||||
grub_uint32_t *srcptr;
|
||||
grub_uint32_t *dstptr;
|
||||
unsigned int sr;
|
||||
unsigned int sg;
|
||||
unsigned int sb;
|
||||
unsigned int a;
|
||||
unsigned int dr;
|
||||
unsigned int dg;
|
||||
unsigned int db;
|
||||
|
||||
for (j = 0; j < height; j++)
|
||||
{
|
||||
srcptr = (grub_uint32_t *)get_data_ptr (src, offset_x, j + offset_y);
|
||||
dstptr = (grub_uint32_t *)get_data_ptr (dst, x, y + j);
|
||||
|
||||
for (i = 0; i < width; i++)
|
||||
{
|
||||
color = *srcptr++;
|
||||
|
||||
a = color >> 24;
|
||||
|
||||
if (a == 0)
|
||||
{
|
||||
dstptr++;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (a == 255)
|
||||
{
|
||||
*dstptr++ = color;
|
||||
continue;
|
||||
}
|
||||
|
||||
sr = (color >> 0) & 0xFF;
|
||||
sg = (color >> 8) & 0xFF;
|
||||
sb = (color >> 16) & 0xFF;
|
||||
|
||||
color = *dstptr;
|
||||
|
||||
dr = (color >> 0) & 0xFF;
|
||||
dg = (color >> 8) & 0xFF;
|
||||
db = (color >> 16) & 0xFF;
|
||||
|
||||
dr = (dr * (255 - a) + sr * a) / 255;
|
||||
dg = (dg * (255 - a) + sg * a) / 255;
|
||||
db = (db * (255 - a) + sb * a) / 255;
|
||||
|
||||
color = (a << 24) | (db << 16) | (dg << 8) | dr;
|
||||
|
||||
*dstptr++ = color;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Optimized blending blitter for RGBA8888 to RGB888. */
|
||||
void
|
||||
grub_video_fbblit_blend_RGB888_RGBA8888 (struct grub_video_fbblit_info *dst,
|
||||
struct grub_video_fbblit_info *src,
|
||||
int x, int y,
|
||||
int width, int height,
|
||||
int offset_x, int offset_y)
|
||||
{
|
||||
grub_uint32_t color;
|
||||
int i;
|
||||
int j;
|
||||
grub_uint32_t *srcptr;
|
||||
grub_uint8_t *dstptr;
|
||||
unsigned int sr;
|
||||
unsigned int sg;
|
||||
unsigned int sb;
|
||||
unsigned int a;
|
||||
unsigned int dr;
|
||||
unsigned int dg;
|
||||
unsigned int db;
|
||||
|
||||
for (j = 0; j < height; j++)
|
||||
{
|
||||
srcptr = (grub_uint32_t *)get_data_ptr (src, offset_x, j + offset_y);
|
||||
dstptr = (grub_uint8_t *)get_data_ptr (dst, x, y + j);
|
||||
|
||||
for (i = 0; i < width; i++)
|
||||
{
|
||||
color = *srcptr++;
|
||||
|
||||
a = color >> 24;
|
||||
|
||||
if (a == 0)
|
||||
{
|
||||
dstptr += 3;
|
||||
continue;
|
||||
}
|
||||
|
||||
sr = (color >> 0) & 0xFF;
|
||||
sg = (color >> 8) & 0xFF;
|
||||
sb = (color >> 16) & 0xFF;
|
||||
|
||||
if (a == 255)
|
||||
{
|
||||
*dstptr++ = sr;
|
||||
*dstptr++ = sg;
|
||||
*dstptr++ = sb;
|
||||
|
||||
continue;
|
||||
}
|
||||
|
||||
dr = dstptr[0];
|
||||
dg = dstptr[1];
|
||||
db = dstptr[2];
|
||||
|
||||
dr = (dr * (255 - a) + sr * a) / 255;
|
||||
dg = (dg * (255 - a) + sg * a) / 255;
|
||||
db = (db * (255 - a) + sb * a) / 255;
|
||||
|
||||
*dstptr++ = dr;
|
||||
*dstptr++ = dg;
|
||||
*dstptr++ = db;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Optimized blending blitter for RGBA8888 to indexed color. */
|
||||
void
|
||||
grub_video_fbblit_blend_index_RGBA8888 (struct grub_video_fbblit_info *dst,
|
||||
struct grub_video_fbblit_info *src,
|
||||
int x, int y,
|
||||
int width, int height,
|
||||
int offset_x, int offset_y)
|
||||
{
|
||||
grub_uint32_t color;
|
||||
int i;
|
||||
int j;
|
||||
grub_uint32_t *srcptr;
|
||||
grub_uint8_t *dstptr;
|
||||
unsigned int sr;
|
||||
unsigned int sg;
|
||||
unsigned int sb;
|
||||
unsigned int a;
|
||||
unsigned char dr;
|
||||
unsigned char dg;
|
||||
unsigned char db;
|
||||
unsigned char da;
|
||||
|
||||
for (j = 0; j < height; j++)
|
||||
{
|
||||
srcptr = (grub_uint32_t *)get_data_ptr (src, offset_x, j + offset_y);
|
||||
dstptr = (grub_uint8_t *)get_data_ptr (dst, x, y + j);
|
||||
|
||||
for (i = 0; i < width; i++)
|
||||
{
|
||||
color = *srcptr++;
|
||||
|
||||
a = color >> 24;
|
||||
|
||||
if (a == 0)
|
||||
{
|
||||
dstptr++;
|
||||
continue;
|
||||
}
|
||||
|
||||
sr = (color >> 0) & 0xFF;
|
||||
sg = (color >> 8) & 0xFF;
|
||||
sb = (color >> 16) & 0xFF;
|
||||
|
||||
if (a == 255)
|
||||
{
|
||||
color = grub_video_fb_map_rgb(sr, sg, sb);
|
||||
*dstptr++ = color & 0xFF;
|
||||
continue;
|
||||
}
|
||||
|
||||
grub_video_fb_unmap_color_int (dst, *dstptr, &dr, &dg, &db, &da);
|
||||
|
||||
dr = (dr * (255 - a) + sr * a) / 255;
|
||||
dg = (dg * (255 - a) + sg * a) / 255;
|
||||
db = (db * (255 - a) + sb * a) / 255;
|
||||
|
||||
color = grub_video_fb_map_rgb(dr, dg, db);
|
||||
|
||||
*dstptr++ = color & 0xFF;
|
||||
}
|
||||
}
|
||||
}
|
||||
177
video/fb/fbfill.c
Normal file
177
video/fb/fbfill.c
Normal file
|
|
@ -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 <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
/* 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 <grub/video_fb.h>
|
||||
#include <grub/fbfill.h>
|
||||
#include <grub/fbutil.h>
|
||||
#include <grub/types.h>
|
||||
#include <grub/video.h>
|
||||
|
||||
/* 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;
|
||||
}
|
||||
}
|
||||
177
video/fb/fbutil.c
Normal file
177
video/fb/fbutil.c
Normal file
|
|
@ -0,0 +1,177 @@
|
|||
/*
|
||||
* 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 <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include <grub/fbutil.h>
|
||||
#include <grub/types.h>
|
||||
#include <grub/video.h>
|
||||
|
||||
grub_uint8_t *
|
||||
get_data_ptr (struct grub_video_fbblit_info *source,
|
||||
unsigned int x, unsigned int y)
|
||||
{
|
||||
grub_uint8_t *ptr = 0;
|
||||
|
||||
switch (source->mode_info->bpp)
|
||||
{
|
||||
case 32:
|
||||
ptr = (grub_uint8_t *)source->data
|
||||
+ y * source->mode_info->pitch
|
||||
+ x * 4;
|
||||
break;
|
||||
|
||||
case 24:
|
||||
ptr = (grub_uint8_t *)source->data
|
||||
+ y * source->mode_info->pitch
|
||||
+ x * 3;
|
||||
break;
|
||||
|
||||
case 16:
|
||||
case 15:
|
||||
ptr = (grub_uint8_t *)source->data
|
||||
+ y * source->mode_info->pitch
|
||||
+ x * 2;
|
||||
break;
|
||||
|
||||
case 8:
|
||||
ptr = (grub_uint8_t *)source->data
|
||||
+ y * source->mode_info->pitch
|
||||
+ x;
|
||||
break;
|
||||
|
||||
case 1:
|
||||
/* For 1-bit bitmaps, addressing needs to be done at the bit level
|
||||
and it doesn't make sense, in general, to ask for a pointer
|
||||
to a particular pixel's data. */
|
||||
break;
|
||||
}
|
||||
|
||||
return ptr;
|
||||
}
|
||||
|
||||
grub_video_color_t
|
||||
get_pixel (struct grub_video_fbblit_info *source,
|
||||
unsigned int x, unsigned int y)
|
||||
{
|
||||
grub_video_color_t color = 0;
|
||||
|
||||
switch (source->mode_info->bpp)
|
||||
{
|
||||
case 32:
|
||||
color = *(grub_uint32_t *)get_data_ptr (source, x, y);
|
||||
break;
|
||||
|
||||
case 24:
|
||||
{
|
||||
grub_uint8_t *ptr;
|
||||
ptr = get_data_ptr (source, x, y);
|
||||
color = ptr[0] | (ptr[1] << 8) | (ptr[2] << 16);
|
||||
}
|
||||
break;
|
||||
|
||||
case 16:
|
||||
case 15:
|
||||
color = *(grub_uint16_t *)get_data_ptr (source, x, y);
|
||||
break;
|
||||
|
||||
case 8:
|
||||
color = *(grub_uint8_t *)get_data_ptr (source, x, y);
|
||||
break;
|
||||
|
||||
case 1:
|
||||
if (source->mode_info->blit_format == GRUB_VIDEO_BLIT_FORMAT_1BIT_PACKED)
|
||||
{
|
||||
int bit_index = y * source->mode_info->width + x;
|
||||
grub_uint8_t *ptr = (grub_uint8_t *)source->data
|
||||
+ bit_index / 8;
|
||||
int bit_pos = 7 - bit_index % 8;
|
||||
color = (*ptr >> bit_pos) & 0x01;
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return color;
|
||||
}
|
||||
|
||||
void
|
||||
set_pixel (struct grub_video_fbblit_info *source,
|
||||
unsigned int x, unsigned int y, grub_video_color_t color)
|
||||
{
|
||||
switch (source->mode_info->bpp)
|
||||
{
|
||||
case 32:
|
||||
{
|
||||
grub_uint32_t *ptr;
|
||||
|
||||
ptr = (grub_uint32_t *)get_data_ptr (source, x, y);
|
||||
|
||||
*ptr = color;
|
||||
}
|
||||
break;
|
||||
|
||||
case 24:
|
||||
{
|
||||
grub_uint8_t *ptr;
|
||||
grub_uint8_t *colorptr = (grub_uint8_t *)&color;
|
||||
|
||||
ptr = get_data_ptr (source, x, y);
|
||||
|
||||
ptr[0] = colorptr[0];
|
||||
ptr[1] = colorptr[1];
|
||||
ptr[2] = colorptr[2];
|
||||
}
|
||||
break;
|
||||
|
||||
case 16:
|
||||
case 15:
|
||||
{
|
||||
grub_uint16_t *ptr;
|
||||
|
||||
ptr = (grub_uint16_t *)get_data_ptr (source, x, y);
|
||||
|
||||
*ptr = (grub_uint16_t) (color & 0xFFFF);
|
||||
}
|
||||
break;
|
||||
|
||||
case 8:
|
||||
{
|
||||
grub_uint8_t *ptr;
|
||||
|
||||
ptr = (grub_uint8_t *)get_data_ptr (source, x, y);
|
||||
|
||||
*ptr = (grub_uint8_t) (color & 0xFF);
|
||||
}
|
||||
break;
|
||||
|
||||
case 1:
|
||||
if (source->mode_info->blit_format == GRUB_VIDEO_BLIT_FORMAT_1BIT_PACKED)
|
||||
{
|
||||
int bit_index = y * source->mode_info->width + x;
|
||||
grub_uint8_t *ptr = (grub_uint8_t *)source->data
|
||||
+ bit_index / 8;
|
||||
int bit_pos = 7 - bit_index % 8;
|
||||
*ptr = (*ptr & ~(1 << bit_pos)) | ((color & 0x01) << bit_pos);
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
1156
video/fb/video_fb.c
Normal file
1156
video/fb/video_fb.c
Normal file
File diff suppressed because it is too large
Load diff
Loading…
Add table
Add a link
Reference in a new issue