b4b9367408
* DISTLIST: Added include/grub/i386/pc/vbeblit.h,
include/grub/i386/pc/vbefill.h, video/i386/pc/vbeblit.c,
video/i386/pc/vbefill.c.
* conf/i386-pc.rmk (vbe_mod_SOURCES): Added video/i386/pc/vbeblit.c,
video/i386/pc/vbefill.c.
* include/grub/video.h (grub_video_blit_format): New enum.
(grub_video_mode_info): Added new member blit_format.
(grub_video_get_blit_format): New function prototype.
* include/grub/i386/pc/vbe.h (grub_video_vbe_get_video_ptr): New
function prototype.
(grub_video_vbe_map_rgb): Likewise.
(grub_video_vbe_unmap_color): Likewise.
* include/grub/i386/pc/vbeblit.h: New file.
* include/grub/i386/pc/vbefill.h: New file.
* video/video.c (grub_video_get_blit_format): New function.
(grub_video_vbe_get_video_ptr): Re-declared as non-static.
(grub_video_vbe_map_rgb): Likewise.
(grub_video_vbe_unmap_color): Likewise.
* video/i386/pc/vbe.c (grub_video_vbe_fill_rect): Changed to use more
optimized fills.
(grub_video_vbe_blit_render_target): Changed to use more optimized
blits.
(grub_video_vbe_setup): Added detection for optimized settings.
(grub_video_vbe_create_render_target): Likewise.
* video/i386/pc/vbeblit.c: New file.
* video/i386/pc/vbefill.c: New file.
369 lines
10 KiB
C
369 lines
10 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2006 Free Software Foundation, Inc.
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*
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <grub/err.h>
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#include <grub/machine/memory.h>
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#include <grub/machine/vbe.h>
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#include <grub/machine/vbeblit.h>
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#include <grub/types.h>
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#include <grub/dl.h>
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#include <grub/misc.h>
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#include <grub/font.h>
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#include <grub/mm.h>
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#include <grub/video.h>
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void
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grub_video_i386_vbeblit_R8G8B8A8_R8G8B8A8 (struct grub_video_render_target *dst,
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struct grub_video_render_target *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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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_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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unsigned int a;
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unsigned int dr;
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unsigned int dg;
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unsigned int db;
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/* We do not need to worry about data being out of bounds
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as we assume that everything has been checked before. */
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for (j = 0; j < height; j++)
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{
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srcptr = (grub_uint32_t *)grub_video_vbe_get_video_ptr (src, offset_x,
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j + offset_y);
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dstptr = (grub_uint32_t *)grub_video_vbe_get_video_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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a = color >> 24;
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if (a == 0)
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{
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dstptr++;
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continue;
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}
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if (a == 255)
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{
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*dstptr++ = color;
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continue;
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}
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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 = *dstptr;
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dr = (color >> 0) & 0xFF;
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dg = (color >> 8) & 0xFF;
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db = (color >> 16) & 0xFF;
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dr = (dr * (255 - a) + sr * a) / 255;
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dg = (dg * (255 - a) + sg * a) / 255;
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db = (db * (255 - a) + sb * a) / 255;
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color = (a << 24) | (db << 16) | (dg << 8) | dr;
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*dstptr++ = color;
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}
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}
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}
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void
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grub_video_i386_vbeblit_R8G8B8_R8G8B8A8 (struct grub_video_render_target *dst,
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struct grub_video_render_target *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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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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unsigned int a;
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unsigned int dr;
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unsigned int dg;
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unsigned int db;
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/* We do not need to worry about data being out of bounds
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as we assume that everything has been checked before. */
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for (j = 0; j < height; j++)
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{
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srcptr = (grub_uint32_t *)grub_video_vbe_get_video_ptr (src, offset_x,
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j + offset_y);
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dstptr = (grub_uint8_t *)grub_video_vbe_get_video_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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a = color >> 24;
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if (a == 0)
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{
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dstptr += 3;
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continue;
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}
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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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if (a == 255)
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{
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*dstptr++ = sr;
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*dstptr++ = sg;
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*dstptr++ = sb;
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continue;
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}
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dr = dstptr[0];
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dg = dstptr[1];
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db = dstptr[2];
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dr = (dr * (255 - a) + sr * a) / 255;
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dg = (dg * (255 - a) + sg * a) / 255;
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db = (db * (255 - a) + sb * a) / 255;
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*dstptr++ = dr;
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*dstptr++ = dg;
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*dstptr++ = db;
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}
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}
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}
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void
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grub_video_i386_vbeblit_index_R8G8B8A8 (struct grub_video_render_target *dst,
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struct grub_video_render_target *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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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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unsigned int a;
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unsigned char dr;
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unsigned char dg;
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unsigned char db;
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unsigned char da;
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/* We do not need to worry about data being out of bounds
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as we assume that everything has been checked before. */
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for (j = 0; j < height; j++)
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{
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srcptr = (grub_uint32_t *)grub_video_vbe_get_video_ptr (src, offset_x,
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j + offset_y);
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dstptr = (grub_uint8_t *)grub_video_vbe_get_video_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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a = color >> 24;
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if (a == 0)
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{
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dstptr++;
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continue;
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}
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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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if (a == 255)
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{
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color = grub_video_vbe_map_rgb(sr, sg, sb);
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*dstptr++ = color & 0xFF;
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continue;
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}
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grub_video_vbe_unmap_color (dst, *dstptr, &dr, &dg, &db, &da);
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dr = (dr * (255 - a) + sr * a) / 255;
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dg = (dg * (255 - a) + sg * a) / 255;
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db = (db * (255 - a) + sb * a) / 255;
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color = grub_video_vbe_map_rgb(dr, dg, db);
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*dstptr++ = color & 0xFF;
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}
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}
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}
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void
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grub_video_i386_vbeblit_R8G8B8A8_R8G8B8 (struct grub_video_render_target *dst,
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struct grub_video_render_target *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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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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/* We do not need to worry about data being out of bounds
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as we assume that everything has been checked before. */
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for (j = 0; j < height; j++)
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{
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srcptr = (grub_uint8_t *)grub_video_vbe_get_video_ptr (src, offset_x,
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j + offset_y);
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dstptr = (grub_uint32_t *)grub_video_vbe_get_video_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 = 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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void
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grub_video_i386_vbeblit_R8G8B8_R8G8B8 (struct grub_video_render_target *dst,
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struct grub_video_render_target *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 *srcptr;
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grub_uint8_t *dstptr;
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/* We do not need to worry about data being out of bounds
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as we assume that everything has been checked before. */
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for (j = 0; j < height; j++)
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{
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srcptr = (grub_uint8_t *)grub_video_vbe_get_video_ptr (src,
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offset_x,
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j + offset_y);
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dstptr = (grub_uint8_t *)grub_video_vbe_get_video_ptr (dst,
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x,
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y + j);
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for (i = 0; i < width; i++)
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{
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*dstptr ++ = *srcptr++;
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*dstptr ++ = *srcptr++;
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*dstptr ++ = *srcptr++;
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}
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}
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}
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void
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grub_video_i386_vbeblit_index_R8G8B8 (struct grub_video_render_target *dst,
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struct grub_video_render_target *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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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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/* We do not need to worry about data being out of bounds
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as we assume that everything has been checked before. */
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for (j = 0; j < height; j++)
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{
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srcptr = (grub_uint8_t *)grub_video_vbe_get_video_ptr (src, offset_x,
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j + offset_y);
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dstptr = (grub_uint8_t *)grub_video_vbe_get_video_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_vbe_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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void
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grub_video_i386_vbeblit_index_index (struct grub_video_render_target *dst,
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struct grub_video_render_target *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 *srcptr;
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grub_uint8_t *dstptr;
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/* We do not need to worry about data being out of bounds
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as we assume that everything has been checked before. */
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for (j = 0; j < height; j++)
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{
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srcptr = (grub_uint8_t *)grub_video_vbe_get_video_ptr (src, offset_x,
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j + offset_y);
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dstptr = (grub_uint8_t *)grub_video_vbe_get_video_ptr (dst, x, y + j);
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for (i = 0; i < width; i++)
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*dstptr++ = *srcptr++;
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}
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}
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