| /* |
| * 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/fbblit.h> |
| #include <grub/fbutil.h> |
| #include <grub/misc.h> |
| #include <grub/types.h> |
| #include <grub/video.h> |
| |
| /* Generic replacing blitter (slow). Works for every supported format. */ |
| static void |
| grub_video_fbblit_replace (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; |
| grub_uint8_t src_red; |
| grub_uint8_t src_green; |
| grub_uint8_t src_blue; |
| grub_uint8_t src_alpha; |
| grub_video_color_t src_color; |
| grub_video_color_t dst_color; |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| 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); |
| |
| dst_color = grub_video_fb_map_rgba (src_red, src_green, |
| src_blue, src_alpha); |
| |
| set_pixel (dst, x + i, y + j, dst_color); |
| } |
| } |
| } |
| |
| /* Block copy replacing blitter. Works with modes multiple of 8 bits. */ |
| static void |
| grub_video_fbblit_replace_directN (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 j; |
| grub_uint32_t *srcptr; |
| grub_uint32_t *dstptr; |
| int bpp; |
| |
| bpp = src->mode_info->bytes_per_pixel; |
| srcptr = grub_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| for (j = 0; j < height; j++) |
| { |
| grub_memmove (dstptr, srcptr, width * bpp); |
| GRUB_VIDEO_FB_ADVANCE_POINTER (srcptr, src->mode_info->pitch); |
| GRUB_VIDEO_FB_ADVANCE_POINTER (dstptr, dst->mode_info->pitch); |
| } |
| } |
| |
| /* Optimized replacing blitter for 1-bit to 32bit. */ |
| static void |
| grub_video_fbblit_replace_32bit_1bit (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; |
| grub_uint8_t *srcptr; |
| grub_uint32_t *dstptr; |
| grub_uint8_t srcmask; |
| unsigned int dstrowskip; |
| unsigned int srcrowskipbyte, srcrowskipbit; |
| grub_uint32_t fgcolor, bgcolor; |
| int bit_index; |
| |
| /* Calculate the number of bytes to advance from the end of one line |
| to the beginning of the next line. */ |
| dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; |
| srcrowskipbyte = (src->mode_info->width - width) >> 3; |
| srcrowskipbit = (src->mode_info->width - width) & 7; |
| |
| bit_index = offset_y * src->mode_info->width + offset_x; |
| srcptr = (grub_uint8_t *) src->data + (bit_index >> 3); |
| srcmask = 1 << (~bit_index & 7); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| fgcolor = grub_video_fb_map_rgba (src->mode_info->fg_red, |
| src->mode_info->fg_green, |
| src->mode_info->fg_blue, |
| src->mode_info->fg_alpha); |
| |
| bgcolor = grub_video_fb_map_rgba (src->mode_info->bg_red, |
| src->mode_info->bg_green, |
| src->mode_info->bg_blue, |
| src->mode_info->bg_alpha); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| if (*srcptr & srcmask) |
| *dstptr = fgcolor; |
| else |
| *dstptr = bgcolor; |
| srcmask >>= 1; |
| if (!srcmask) |
| { |
| srcptr++; |
| srcmask = 0x80; |
| } |
| |
| dstptr++; |
| } |
| |
| srcptr += srcrowskipbyte; |
| if (srcmask >> srcrowskipbit) |
| srcmask >>= srcrowskipbit; |
| else |
| { |
| srcptr++; |
| srcmask <<= 8 - srcrowskipbit; |
| } |
| GRUB_VIDEO_FB_ADVANCE_POINTER (dstptr, dstrowskip); |
| } |
| } |
| |
| |
| #ifdef GRUB_HAVE_UNALIGNED_ACCESS |
| /* Optimized replacing blitter for 1-bit to 24-bit. */ |
| static void |
| grub_video_fbblit_replace_24bit_1bit (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; |
| grub_uint8_t *srcptr; |
| grub_uint8_t *dstptr; |
| grub_uint8_t srcmask; |
| unsigned int dstrowskip; |
| unsigned int srcrowskipbyte, srcrowskipbit; |
| grub_uint32_t fgcolor, bgcolor; |
| int bit_index; |
| |
| /* Calculate the number of bytes to advance from the end of one line |
| to the beginning of the next line. */ |
| dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; |
| srcrowskipbyte = (src->mode_info->width - width) >> 3; |
| srcrowskipbit = (src->mode_info->width - width) & 7; |
| |
| bit_index = offset_y * src->mode_info->width + offset_x; |
| srcptr = (grub_uint8_t *) src->data + (bit_index >> 3); |
| srcmask = 1 << (~bit_index & 7); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| fgcolor = grub_video_fb_map_rgba (src->mode_info->fg_red, |
| src->mode_info->fg_green, |
| src->mode_info->fg_blue, |
| src->mode_info->fg_alpha); |
| |
| bgcolor = grub_video_fb_map_rgba (src->mode_info->bg_red, |
| src->mode_info->bg_green, |
| src->mode_info->bg_blue, |
| src->mode_info->bg_alpha); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width - 1; i++) |
| { |
| if (*srcptr & srcmask) |
| *(grub_uint32_t *) dstptr = fgcolor; |
| else |
| *(grub_uint32_t *) dstptr = bgcolor; |
| srcmask >>= 1; |
| if (!srcmask) |
| { |
| srcptr++; |
| srcmask = 0x80; |
| } |
| |
| dstptr += 3; |
| } |
| |
| if (*srcptr & srcmask) |
| { |
| *dstptr++ = fgcolor & 0xff; |
| *dstptr++ = (fgcolor & 0xff00) >> 8; |
| *dstptr++ = (fgcolor & 0xff0000) >> 16; |
| } |
| else |
| { |
| *dstptr++ = bgcolor & 0xff; |
| *dstptr++ = (bgcolor & 0xff00) >> 8; |
| *dstptr++ = (bgcolor & 0xff0000) >> 16; |
| } |
| srcmask >>= 1; |
| if (!srcmask) |
| { |
| srcptr++; |
| srcmask = 0x80; |
| } |
| |
| srcptr += srcrowskipbyte; |
| if (srcmask >> srcrowskipbit) |
| srcmask >>= srcrowskipbit; |
| else |
| { |
| srcptr++; |
| srcmask <<= 8 - srcrowskipbit; |
| } |
| dstptr += dstrowskip; |
| } |
| } |
| #endif |
| |
| /* Optimized replacing blitter for 1-bit to 16-bit. */ |
| static void |
| grub_video_fbblit_replace_16bit_1bit (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; |
| grub_uint8_t *srcptr; |
| grub_uint16_t *dstptr; |
| grub_uint8_t srcmask; |
| unsigned int dstrowskip; |
| unsigned int srcrowskipbyte, srcrowskipbit; |
| grub_uint16_t fgcolor, bgcolor; |
| int bit_index; |
| |
| /* Calculate the number of bytes to advance from the end of one line |
| to the beginning of the next line. */ |
| dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; |
| srcrowskipbyte = (src->mode_info->width - width) >> 3; |
| srcrowskipbit = (src->mode_info->width - width) & 7; |
| |
| bit_index = offset_y * src->mode_info->width + offset_x; |
| srcptr = (grub_uint8_t *) src->data + (bit_index >> 3); |
| srcmask = 1 << (~bit_index & 7); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| fgcolor = grub_video_fb_map_rgba (src->mode_info->fg_red, |
| src->mode_info->fg_green, |
| src->mode_info->fg_blue, |
| src->mode_info->fg_alpha); |
| |
| bgcolor = grub_video_fb_map_rgba (src->mode_info->bg_red, |
| src->mode_info->bg_green, |
| src->mode_info->bg_blue, |
| src->mode_info->bg_alpha); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| if (*srcptr & srcmask) |
| *dstptr = fgcolor; |
| else |
| *dstptr = bgcolor; |
| srcmask >>= 1; |
| if (!srcmask) |
| { |
| srcptr++; |
| srcmask = 0x80; |
| } |
| |
| dstptr++; |
| } |
| |
| srcptr += srcrowskipbyte; |
| if (srcmask >> srcrowskipbit) |
| srcmask >>= srcrowskipbit; |
| else |
| { |
| srcptr++; |
| srcmask <<= 8 - srcrowskipbit; |
| } |
| GRUB_VIDEO_FB_ADVANCE_POINTER (dstptr, dstrowskip); |
| } |
| } |
| |
| /* Optimized replacing blitter for 1-bit to 8-bit. */ |
| static void |
| grub_video_fbblit_replace_8bit_1bit (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; |
| grub_uint8_t *srcptr; |
| grub_uint8_t *dstptr; |
| grub_uint8_t srcmask; |
| unsigned int dstrowskip; |
| unsigned int srcrowskipbyte, srcrowskipbit; |
| grub_uint8_t fgcolor, bgcolor; |
| int bit_index; |
| |
| /* Calculate the number of bytes to advance from the end of one line |
| to the beginning of the next line. */ |
| dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; |
| srcrowskipbyte = (src->mode_info->width - width) >> 3; |
| srcrowskipbit = (src->mode_info->width - width) & 7; |
| |
| bit_index = offset_y * src->mode_info->width + offset_x; |
| srcptr = (grub_uint8_t *) src->data + (bit_index >> 3); |
| srcmask = 1 << (~bit_index & 7); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| fgcolor = grub_video_fb_map_rgba (src->mode_info->fg_red, |
| src->mode_info->fg_green, |
| src->mode_info->fg_blue, |
| src->mode_info->fg_alpha); |
| |
| bgcolor = grub_video_fb_map_rgba (src->mode_info->bg_red, |
| src->mode_info->bg_green, |
| src->mode_info->bg_blue, |
| src->mode_info->bg_alpha); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| if (*srcptr & srcmask) |
| *dstptr = fgcolor; |
| else |
| *dstptr = bgcolor; |
| srcmask >>= 1; |
| if (!srcmask) |
| { |
| srcptr++; |
| srcmask = 0x80; |
| } |
| |
| dstptr++; |
| } |
| |
| srcptr += srcrowskipbyte; |
| if (srcmask >> srcrowskipbit) |
| srcmask >>= srcrowskipbit; |
| else |
| { |
| srcptr++; |
| srcmask <<= 8 - srcrowskipbit; |
| } |
| dstptr += dstrowskip; |
| } |
| } |
| |
| static void |
| grub_video_fbblit_replace_32bit_indexa (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; |
| grub_uint8_t *srcptr; |
| grub_uint32_t *dstptr; |
| unsigned int dstrowskip; |
| unsigned int srcrowskip; |
| grub_uint32_t palette[17]; |
| |
| srcptr = grub_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| /* Calculate the number of bytes to advance from the end of one line |
| to the beginning of the next line. */ |
| dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; |
| srcrowskip = src->mode_info->pitch - width; |
| |
| for (i = 0; i < 16; i++) |
| palette[i] = grub_video_fb_map_color (i); |
| palette[16] = grub_video_fb_map_rgba (0, 0, 0, 0); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| if (*srcptr == 0xf0) |
| *dstptr = palette[16]; |
| else |
| *dstptr = palette[*srcptr & 0xf]; |
| srcptr++; |
| dstptr++; |
| } |
| |
| srcptr += srcrowskip; |
| GRUB_VIDEO_FB_ADVANCE_POINTER (dstptr, dstrowskip); |
| } |
| } |
| |
| /* Optimized replacing blitter for 1-bit to 16bit. */ |
| static void |
| grub_video_fbblit_replace_24bit_indexa (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; |
| grub_uint8_t *srcptr; |
| grub_uint8_t *dstptr; |
| unsigned int dstrowskip; |
| unsigned int srcrowskip; |
| grub_uint32_t palette[17]; |
| |
| srcptr = grub_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| /* Calculate the number of bytes to advance from the end of one line |
| to the beginning of the next line. */ |
| dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; |
| srcrowskip = src->mode_info->pitch - width; |
| |
| for (i = 0; i < 16; i++) |
| palette[i] = grub_video_fb_map_color (i); |
| palette[16] = grub_video_fb_map_rgba (0, 0, 0, 0); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| register grub_uint32_t col; |
| if (*srcptr == 0xf0) |
| col = palette[16]; |
| else |
| col = palette[*srcptr & 0xf]; |
| #ifdef GRUB_CPU_WORDS_BIGENDIAN |
| *dstptr++ = col >> 16; |
| *dstptr++ = col >> 8; |
| *dstptr++ = col >> 0; |
| #else |
| *dstptr++ = col >> 0; |
| *dstptr++ = col >> 8; |
| *dstptr++ = col >> 16; |
| #endif |
| srcptr++; |
| } |
| |
| srcptr += srcrowskip; |
| dstptr += dstrowskip; |
| } |
| } |
| |
| /* Optimized replacing blitter for 1-bit to 16bit. */ |
| static void |
| grub_video_fbblit_replace_16bit_indexa (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; |
| grub_uint8_t *srcptr; |
| grub_uint16_t *dstptr; |
| unsigned int dstrowskip; |
| unsigned int srcrowskip; |
| grub_uint16_t palette[17]; |
| |
| srcptr = grub_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| /* Calculate the number of bytes to advance from the end of one line |
| to the beginning of the next line. */ |
| dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; |
| srcrowskip = src->mode_info->pitch - width; |
| |
| for (i = 0; i < 16; i++) |
| palette[i] = grub_video_fb_map_color (i); |
| palette[16] = grub_video_fb_map_rgba (0, 0, 0, 0); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| if (*srcptr == 0xf0) |
| *dstptr = palette[16]; |
| else |
| *dstptr = palette[*srcptr & 0xf]; |
| srcptr++; |
| dstptr++; |
| } |
| |
| srcptr += srcrowskip; |
| GRUB_VIDEO_FB_ADVANCE_POINTER (dstptr, dstrowskip); |
| } |
| } |
| |
| /* Optimized replacing blitter for 1-bit to 8bit. */ |
| static void |
| grub_video_fbblit_replace_8bit_indexa (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; |
| grub_uint8_t *srcptr; |
| grub_uint8_t *dstptr; |
| unsigned int dstrowskip; |
| unsigned int srcrowskip; |
| grub_uint8_t palette[17]; |
| |
| srcptr = grub_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| /* Calculate the number of bytes to advance from the end of one line |
| to the beginning of the next line. */ |
| dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; |
| srcrowskip = src->mode_info->pitch - width; |
| |
| for (i = 0; i < 16; i++) |
| palette[i] = grub_video_fb_map_color (i); |
| palette[16] = grub_video_fb_map_rgba (0, 0, 0, 0); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| if (*srcptr == 0xf0) |
| *dstptr = palette[16]; |
| else |
| *dstptr = palette[*srcptr & 0xf]; |
| srcptr++; |
| dstptr++; |
| } |
| |
| srcptr += srcrowskip; |
| dstptr += dstrowskip; |
| } |
| } |
| |
| |
| static void |
| grub_video_fbblit_blend_32bit_indexa (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; |
| grub_uint8_t *srcptr; |
| grub_uint32_t *dstptr; |
| unsigned int dstrowskip; |
| unsigned int srcrowskip; |
| grub_uint32_t palette[16]; |
| |
| srcptr = grub_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| /* Calculate the number of bytes to advance from the end of one line |
| to the beginning of the next line. */ |
| dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; |
| srcrowskip = src->mode_info->pitch - width; |
| |
| for (i = 0; i < 16; i++) |
| palette[i] = grub_video_fb_map_color (i); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| if (*srcptr != 0xf0) |
| *dstptr = palette[*srcptr & 0xf]; |
| srcptr++; |
| dstptr++; |
| } |
| |
| srcptr += srcrowskip; |
| GRUB_VIDEO_FB_ADVANCE_POINTER (dstptr, dstrowskip); |
| } |
| } |
| |
| /* Optimized replacing blitter for 1-bit to 16bit. */ |
| static void |
| grub_video_fbblit_blend_24bit_indexa (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; |
| grub_uint8_t *srcptr; |
| grub_uint8_t *dstptr; |
| unsigned int dstrowskip; |
| unsigned int srcrowskip; |
| grub_uint32_t palette[16]; |
| |
| srcptr = grub_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| /* Calculate the number of bytes to advance from the end of one line |
| to the beginning of the next line. */ |
| dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; |
| srcrowskip = src->mode_info->pitch - width; |
| |
| for (i = 0; i < 16; i++) |
| palette[i] = grub_video_fb_map_color (i); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| register grub_uint32_t col; |
| if (*srcptr != 0xf0) |
| { |
| col = palette[*srcptr & 0xf]; |
| #ifdef GRUB_CPU_WORDS_BIGENDIAN |
| *dstptr++ = col >> 16; |
| *dstptr++ = col >> 8; |
| *dstptr++ = col >> 0; |
| #else |
| *dstptr++ = col >> 0; |
| *dstptr++ = col >> 8; |
| *dstptr++ = col >> 16; |
| #endif |
| } |
| else |
| dstptr += 3; |
| srcptr++; |
| } |
| |
| srcptr += srcrowskip; |
| dstptr += dstrowskip; |
| } |
| } |
| |
| /* Optimized replacing blitter for 1-bit to 16bit. */ |
| static void |
| grub_video_fbblit_blend_16bit_indexa (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; |
| grub_uint8_t *srcptr; |
| grub_uint16_t *dstptr; |
| unsigned int dstrowskip; |
| unsigned int srcrowskip; |
| grub_uint16_t palette[17]; |
| |
| srcptr = grub_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| /* Calculate the number of bytes to advance from the end of one line |
| to the beginning of the next line. */ |
| dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; |
| srcrowskip = src->mode_info->pitch - width; |
| |
| for (i = 0; i < 16; i++) |
| palette[i] = grub_video_fb_map_color (i); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| if (*srcptr != 0xf0) |
| *dstptr = palette[*srcptr & 0xf]; |
| srcptr++; |
| dstptr++; |
| } |
| |
| srcptr += srcrowskip; |
| GRUB_VIDEO_FB_ADVANCE_POINTER (dstptr, dstrowskip); |
| } |
| } |
| |
| /* Optimized replacing blitter for 1-bit to 8bit. */ |
| static void |
| grub_video_fbblit_blend_8bit_indexa (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; |
| grub_uint8_t *srcptr; |
| grub_uint8_t *dstptr; |
| unsigned int dstrowskip; |
| unsigned int srcrowskip; |
| grub_uint8_t palette[16]; |
| |
| srcptr = grub_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| /* Calculate the number of bytes to advance from the end of one line |
| to the beginning of the next line. */ |
| dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; |
| srcrowskip = src->mode_info->pitch - width; |
| |
| for (i = 0; i < 16; i++) |
| palette[i] = grub_video_fb_map_color (i); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| if (*srcptr != 0xf0) |
| *dstptr = palette[*srcptr & 0xf]; |
| srcptr++; |
| dstptr++; |
| } |
| |
| srcptr += srcrowskip; |
| dstptr += dstrowskip; |
| } |
| } |
| |
| |
| /* Optimized replacing blitter for RGBX8888 to BGRX8888. */ |
| static void |
| grub_video_fbblit_replace_BGRX8888_RGBX8888 (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; |
| grub_uint8_t *srcptr; |
| grub_uint8_t *dstptr; |
| unsigned int srcrowskip; |
| unsigned int dstrowskip; |
| |
| /* 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_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| #ifdef GRUB_CPU_WORDS_BIGENDIAN |
| grub_uint8_t a = *srcptr++; |
| #endif |
| grub_uint8_t r = *srcptr++; |
| grub_uint8_t g = *srcptr++; |
| grub_uint8_t b = *srcptr++; |
| #ifndef GRUB_CPU_WORDS_BIGENDIAN |
| grub_uint8_t a = *srcptr++; |
| #endif |
| |
| #ifdef GRUB_CPU_WORDS_BIGENDIAN |
| *dstptr++ = a; |
| #endif |
| *dstptr++ = b; |
| *dstptr++ = g; |
| *dstptr++ = r; |
| #ifndef GRUB_CPU_WORDS_BIGENDIAN |
| *dstptr++ = a; |
| #endif |
| } |
| |
| srcptr += srcrowskip; |
| dstptr += dstrowskip; |
| } |
| } |
| |
| /* Optimized replacing blitter for RGB888 to BGRX8888. */ |
| static void |
| grub_video_fbblit_replace_BGRX8888_RGB888 (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; |
| grub_uint8_t *srcptr; |
| grub_uint8_t *dstptr; |
| unsigned int srcrowskip; |
| unsigned int dstrowskip; |
| |
| /* 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_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| grub_uint8_t r = *srcptr++; |
| grub_uint8_t g = *srcptr++; |
| grub_uint8_t b = *srcptr++; |
| |
| #ifdef GRUB_CPU_WORDS_BIGENDIAN |
| /* Set alpha component as opaque. */ |
| *dstptr++ = 255; |
| #endif |
| |
| *dstptr++ = b; |
| *dstptr++ = g; |
| *dstptr++ = r; |
| |
| #ifndef GRUB_CPU_WORDS_BIGENDIAN |
| /* Set alpha component as opaque. */ |
| *dstptr++ = 255; |
| #endif |
| } |
| |
| srcptr += srcrowskip; |
| dstptr += dstrowskip; |
| } |
| } |
| |
| /* Optimized replacing blitter for RGBX8888 to BGR888. */ |
| static void |
| grub_video_fbblit_replace_BGR888_RGBX8888 (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_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| grub_uint32_t color; |
| grub_uint8_t sr; |
| grub_uint8_t sg; |
| grub_uint8_t sb; |
| |
| color = *srcptr++; |
| |
| sr = (color >> 0) & 0xFF; |
| sg = (color >> 8) & 0xFF; |
| sb = (color >> 16) & 0xFF; |
| |
| #ifdef GRUB_CPU_WORDS_BIGENDIAN |
| *dstptr++ = sr; |
| *dstptr++ = sg; |
| *dstptr++ = sb; |
| #else |
| *dstptr++ = sb; |
| *dstptr++ = sg; |
| *dstptr++ = sr; |
| #endif |
| } |
| |
| GRUB_VIDEO_FB_ADVANCE_POINTER (srcptr, srcrowskip); |
| dstptr += dstrowskip; |
| } |
| } |
| |
| /* Optimized replacing blitter for RGB888 to BGR888. */ |
| static void |
| grub_video_fbblit_replace_BGR888_RGB888 (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; |
| grub_uint8_t *srcptr; |
| grub_uint8_t *dstptr; |
| unsigned int srcrowskip; |
| unsigned int dstrowskip; |
| |
| /* 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_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| grub_uint8_t r = *srcptr++; |
| grub_uint8_t g = *srcptr++; |
| grub_uint8_t b = *srcptr++; |
| |
| *dstptr++ = b; |
| *dstptr++ = g; |
| *dstptr++ = r; |
| } |
| |
| srcptr += srcrowskip; |
| dstptr += dstrowskip; |
| } |
| } |
| |
| /* Optimized replacing blitter for RGB888 to RGBX8888. */ |
| static void |
| grub_video_fbblit_replace_RGBX8888_RGB888 (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_uint8_t *srcptr; |
| grub_uint32_t *dstptr; |
| unsigned int sr; |
| unsigned int sg; |
| unsigned int sb; |
| grub_size_t srcrowskip; |
| grub_size_t dstrowskip; |
| |
| srcrowskip = src->mode_info->pitch - 3 * width; |
| dstrowskip = dst->mode_info->pitch - 4 * width; |
| srcptr = grub_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| #ifdef GRUB_CPU_WORDS_BIGENDIAN |
| sb = *srcptr++; |
| sg = *srcptr++; |
| sr = *srcptr++; |
| #else |
| sr = *srcptr++; |
| sg = *srcptr++; |
| sb = *srcptr++; |
| #endif |
| /* Set alpha as opaque. */ |
| color = 0xFF000000 | (sb << 16) | (sg << 8) | sr; |
| |
| *dstptr++ = color; |
| } |
| GRUB_VIDEO_FB_ADVANCE_POINTER (srcptr, srcrowskip); |
| GRUB_VIDEO_FB_ADVANCE_POINTER (dstptr, dstrowskip); |
| } |
| } |
| |
| /* Optimized replacing blitter for RGBX8888 to RGB888. */ |
| static void |
| grub_video_fbblit_replace_RGB888_RGBX8888 (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; |
| grub_size_t srcrowskip; |
| grub_size_t dstrowskip; |
| |
| srcptr = grub_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| srcrowskip = src->mode_info->pitch - 4 * width; |
| dstrowskip = dst->mode_info->pitch - 3 * width; |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| color = *srcptr++; |
| |
| sr = (color >> 0) & 0xFF; |
| sg = (color >> 8) & 0xFF; |
| sb = (color >> 16) & 0xFF; |
| |
| #ifndef GRUB_CPU_WORDS_BIGENDIAN |
| *dstptr++ = sr; |
| *dstptr++ = sg; |
| *dstptr++ = sb; |
| #else |
| *dstptr++ = sb; |
| *dstptr++ = sg; |
| *dstptr++ = sr; |
| #endif |
| } |
| GRUB_VIDEO_FB_ADVANCE_POINTER (srcptr, srcrowskip); |
| GRUB_VIDEO_FB_ADVANCE_POINTER (dstptr, dstrowskip); |
| } |
| } |
| |
| /* Optimized replacing blitter for RGBX8888 to indexed color. */ |
| static void |
| grub_video_fbblit_replace_index_RGBX8888 (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; |
| grub_size_t srcrowskip; |
| grub_size_t dstrowskip; |
| |
| srcrowskip = src->mode_info->pitch - 4 * width; |
| dstrowskip = dst->mode_info->pitch - width; |
| |
| srcptr = grub_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| color = *srcptr++; |
| |
| sr = (color >> 0) & 0xFF; |
| sg = (color >> 8) & 0xFF; |
| sb = (color >> 16) & 0xFF; |
| |
| color = grub_video_fb_map_rgb(sr, sg, sb); |
| *dstptr++ = color & 0xFF; |
| } |
| GRUB_VIDEO_FB_ADVANCE_POINTER (srcptr, srcrowskip); |
| GRUB_VIDEO_FB_ADVANCE_POINTER (dstptr, dstrowskip); |
| } |
| } |
| |
| /* Optimized replacing blitter for RGB888 to indexed color. */ |
| static void |
| grub_video_fbblit_replace_index_RGB888 (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_uint8_t *srcptr; |
| grub_uint8_t *dstptr; |
| unsigned int sr; |
| unsigned int sg; |
| unsigned int sb; |
| grub_size_t srcrowskip; |
| grub_size_t dstrowskip; |
| |
| srcrowskip = src->mode_info->pitch - 3 * width; |
| dstrowskip = dst->mode_info->pitch - width; |
| |
| srcptr = grub_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| #ifndef GRUB_CPU_WORDS_BIGENDIAN |
| sr = *srcptr++; |
| sg = *srcptr++; |
| sb = *srcptr++; |
| #else |
| sb = *srcptr++; |
| sg = *srcptr++; |
| sr = *srcptr++; |
| #endif |
| |
| color = grub_video_fb_map_rgb(sr, sg, sb); |
| |
| *dstptr++ = color & 0xFF; |
| } |
| GRUB_VIDEO_FB_ADVANCE_POINTER (srcptr, srcrowskip); |
| GRUB_VIDEO_FB_ADVANCE_POINTER (dstptr, dstrowskip); |
| } |
| } |
| |
| static inline grub_uint8_t |
| alpha_dilute (grub_uint8_t bg, grub_uint8_t fg, grub_uint8_t alpha) |
| { |
| grub_uint16_t s; |
| grub_uint16_t h, l; |
| s = (fg * alpha) + (bg * (255 ^ alpha)); |
| /* Optimised division by 255. */ |
| h = s >> 8; |
| l = s & 0xff; |
| if (h + l >= 255) |
| h++; |
| return h; |
| } |
| |
| /* Generic blending blitter. Works for every supported format. */ |
| static void |
| 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 = alpha_dilute (dst_red, src_red, src_alpha); |
| dst_green = alpha_dilute (dst_green, src_green, src_alpha); |
| dst_blue = alpha_dilute (dst_blue, src_blue, src_alpha); |
| |
| 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. */ |
| static 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_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_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 = alpha_dilute (dr, sr, a); |
| dg = (color >> 8) & 0xFF; |
| dg = alpha_dilute (dg, sg, a); |
| db = (color >> 0) & 0xFF; |
| db = alpha_dilute (db, sb, a); |
| } |
| |
| color = (a << 24) | (dr << 16) | (dg << 8) | db; |
| |
| *dstptr++ = color; |
| } |
| |
| GRUB_VIDEO_FB_ADVANCE_POINTER (srcptr, srcrowskip); |
| GRUB_VIDEO_FB_ADVANCE_POINTER (dstptr, dstrowskip); |
| } |
| } |
| |
| /* Optimized blending blitter for RGBA8888 to BGR888. */ |
| static 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_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_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; |
| |
| #ifndef GRUB_CPU_WORDS_BIGENDIAN |
| db = dstptr[0]; |
| dg = dstptr[1]; |
| dr = dstptr[2]; |
| #else |
| dr = dstptr[0]; |
| dg = dstptr[1]; |
| db = dstptr[2]; |
| #endif |
| |
| db = alpha_dilute (db, sb, a); |
| dg = alpha_dilute (dg, sg, a); |
| dr = alpha_dilute (dr, sr, a); |
| } |
| |
| #ifndef GRUB_CPU_WORDS_BIGENDIAN |
| *dstptr++ = db; |
| *dstptr++ = dg; |
| *dstptr++ = dr; |
| #else |
| *dstptr++ = dr; |
| *dstptr++ = dg; |
| *dstptr++ = db; |
| #endif |
| } |
| |
| GRUB_VIDEO_FB_ADVANCE_POINTER (srcptr, srcrowskip); |
| dstptr += dstrowskip; |
| } |
| } |
| |
| /* Optimized blending blitter for RGBA888 to RGBA8888. */ |
| static 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; |
| grub_size_t srcrowskip; |
| grub_size_t dstrowskip; |
| |
| srcrowskip = src->mode_info->pitch - 4 * width; |
| dstrowskip = dst->mode_info->pitch - 4 * width; |
| |
| srcptr = grub_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| for (j = 0; j < height; 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 = alpha_dilute (dr, sr, a); |
| dg = alpha_dilute (dg, sg, a); |
| db = alpha_dilute (db, sb, a); |
| |
| color = (a << 24) | (db << 16) | (dg << 8) | dr; |
| |
| *dstptr++ = color; |
| } |
| GRUB_VIDEO_FB_ADVANCE_POINTER (srcptr, srcrowskip); |
| GRUB_VIDEO_FB_ADVANCE_POINTER (dstptr, dstrowskip); |
| } |
| } |
| |
| /* Optimized blending blitter for RGBA8888 to RGB888. */ |
| static 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; |
| grub_size_t srcrowskip; |
| grub_size_t dstrowskip; |
| |
| srcrowskip = src->mode_info->pitch - 4 * width; |
| dstrowskip = dst->mode_info->pitch - 3 * width; |
| |
| srcptr = grub_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| for (j = 0; j < height; 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) |
| { |
| #ifndef GRUB_CPU_WORDS_BIGENDIAN |
| *dstptr++ = sr; |
| *dstptr++ = sg; |
| *dstptr++ = sb; |
| #else |
| *dstptr++ = sb; |
| *dstptr++ = sg; |
| *dstptr++ = sr; |
| #endif |
| |
| continue; |
| } |
| |
| #ifndef GRUB_CPU_WORDS_BIGENDIAN |
| dr = dstptr[0]; |
| dg = dstptr[1]; |
| db = dstptr[2]; |
| #else |
| db = dstptr[0]; |
| dg = dstptr[1]; |
| dr = dstptr[2]; |
| #endif |
| |
| dr = alpha_dilute (dr, sr, a); |
| dg = alpha_dilute (dg, sg, a); |
| db = alpha_dilute (db, sb, a); |
| |
| #ifndef GRUB_CPU_WORDS_BIGENDIAN |
| *dstptr++ = dr; |
| *dstptr++ = dg; |
| *dstptr++ = db; |
| #else |
| *dstptr++ = db; |
| *dstptr++ = dg; |
| *dstptr++ = dr; |
| #endif |
| } |
| GRUB_VIDEO_FB_ADVANCE_POINTER (srcptr, srcrowskip); |
| GRUB_VIDEO_FB_ADVANCE_POINTER (dstptr, dstrowskip); |
| } |
| } |
| |
| /* Optimized blending blitter for RGBA8888 to indexed color. */ |
| static 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; |
| grub_size_t srcrowskip; |
| grub_size_t dstrowskip; |
| |
| srcrowskip = src->mode_info->pitch - 4 * width; |
| dstrowskip = dst->mode_info->pitch - width; |
| |
| srcptr = grub_video_fb_get_video_ptr (src, offset_x, offset_y); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| for (j = 0; j < height; 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 = alpha_dilute (dr, sr, a); |
| dg = alpha_dilute (dg, sg, a); |
| db = alpha_dilute (db, sb, a); |
| |
| color = grub_video_fb_map_rgb(dr, dg, db); |
| |
| *dstptr++ = color & 0xFF; |
| } |
| GRUB_VIDEO_FB_ADVANCE_POINTER (srcptr, srcrowskip); |
| GRUB_VIDEO_FB_ADVANCE_POINTER (dstptr, dstrowskip); |
| } |
| } |
| |
| /* Optimized blending blitter for 1-bit to XXXA8888. */ |
| static void |
| grub_video_fbblit_blend_XXXA8888_1bit (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; |
| grub_uint8_t *srcptr; |
| grub_uint32_t *dstptr; |
| grub_uint8_t srcmask; |
| unsigned int dstrowskip; |
| unsigned int srcrowskipbyte, srcrowskipbit; |
| grub_uint32_t fgcolor, bgcolor; |
| int bit_index; |
| |
| /* Calculate the number of bytes to advance from the end of one line |
| to the beginning of the next line. */ |
| dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; |
| srcrowskipbyte = (src->mode_info->width - width) >> 3; |
| srcrowskipbit = (src->mode_info->width - width) & 7; |
| |
| bit_index = offset_y * src->mode_info->width + offset_x; |
| srcptr = (grub_uint8_t *) src->data + (bit_index >> 3); |
| srcmask = 1 << (~bit_index & 7); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| fgcolor = grub_video_fb_map_rgba (src->mode_info->fg_red, |
| src->mode_info->fg_green, |
| src->mode_info->fg_blue, |
| src->mode_info->fg_alpha); |
| |
| bgcolor = grub_video_fb_map_rgba (src->mode_info->bg_red, |
| src->mode_info->bg_green, |
| src->mode_info->bg_blue, |
| src->mode_info->bg_alpha); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| grub_uint32_t color; |
| grub_uint8_t a; |
| |
| if (*srcptr & srcmask) |
| { |
| color = fgcolor; |
| a = src->mode_info->fg_alpha; |
| } |
| else |
| { |
| color = bgcolor; |
| a = src->mode_info->bg_alpha; |
| } |
| |
| if (a == 255) |
| *dstptr = color; |
| else if (a != 0) |
| { |
| grub_uint8_t s1 = (color >> 0) & 0xFF; |
| grub_uint8_t s2 = (color >> 8) & 0xFF; |
| grub_uint8_t s3 = (color >> 16) & 0xFF; |
| |
| grub_uint8_t d1 = (*dstptr >> 0) & 0xFF; |
| grub_uint8_t d2 = (*dstptr >> 8) & 0xFF; |
| grub_uint8_t d3 = (*dstptr >> 16) & 0xFF; |
| |
| d1 = alpha_dilute (d1, s1, a); |
| d2 = alpha_dilute (d2, s2, a); |
| d3 = alpha_dilute (d3, s3, a); |
| |
| *dstptr = (a << 24) | (d3 << 16) | (d2 << 8) | d1; |
| } |
| |
| srcmask >>= 1; |
| if (!srcmask) |
| { |
| srcptr++; |
| srcmask = 0x80; |
| } |
| |
| dstptr++; |
| } |
| |
| srcptr += srcrowskipbyte; |
| if (srcmask >> srcrowskipbit) |
| srcmask >>= srcrowskipbit; |
| else |
| { |
| srcptr++; |
| srcmask <<= 8 - srcrowskipbit; |
| } |
| GRUB_VIDEO_FB_ADVANCE_POINTER (dstptr, dstrowskip); |
| } |
| } |
| |
| /* Optimized blending blitter for 1-bit to XXX888. */ |
| #ifdef GRUB_HAVE_UNALIGNED_ACCESS |
| static void |
| grub_video_fbblit_blend_XXX888_1bit (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; |
| grub_uint8_t *srcptr; |
| grub_uint8_t *dstptr; |
| grub_uint8_t srcmask; |
| unsigned int dstrowskip; |
| unsigned int srcrowskipbyte, srcrowskipbit; |
| grub_uint32_t fgcolor, bgcolor; |
| int bit_index; |
| |
| /* Calculate the number of bytes to advance from the end of one line |
| to the beginning of the next line. */ |
| dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; |
| srcrowskipbyte = (src->mode_info->width - width) >> 3; |
| srcrowskipbit = (src->mode_info->width - width) & 7; |
| |
| bit_index = offset_y * src->mode_info->width + offset_x; |
| srcptr = (grub_uint8_t *) src->data + (bit_index >> 3); |
| srcmask = 1 << (~bit_index & 7); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| fgcolor = grub_video_fb_map_rgba (src->mode_info->fg_red, |
| src->mode_info->fg_green, |
| src->mode_info->fg_blue, |
| src->mode_info->fg_alpha); |
| |
| bgcolor = grub_video_fb_map_rgba (src->mode_info->bg_red, |
| src->mode_info->bg_green, |
| src->mode_info->bg_blue, |
| src->mode_info->bg_alpha); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| grub_uint32_t color; |
| grub_uint8_t a; |
| if (*srcptr & srcmask) |
| { |
| color = fgcolor; |
| a = src->mode_info->fg_alpha; |
| } |
| else |
| { |
| color = bgcolor; |
| a = src->mode_info->bg_alpha; |
| } |
| |
| if (a == 255) |
| { |
| #ifndef GRUB_CPU_WORDS_BIGENDIAN |
| ((grub_uint8_t *) dstptr)[0] = color & 0xff; |
| ((grub_uint8_t *) dstptr)[1] = (color & 0xff00) >> 8; |
| ((grub_uint8_t *) dstptr)[2] = (color & 0xff0000) >> 16; |
| #else |
| ((grub_uint8_t *) dstptr)[2] = color & 0xff; |
| ((grub_uint8_t *) dstptr)[1] = (color & 0xff00) >> 8; |
| ((grub_uint8_t *) dstptr)[0] = (color & 0xff0000) >> 16; |
| #endif |
| } |
| else if (a != 0) |
| { |
| grub_uint8_t s1 = (color >> 0) & 0xFF; |
| grub_uint8_t s2 = (color >> 8) & 0xFF; |
| grub_uint8_t s3 = (color >> 16) & 0xFF; |
| |
| grub_uint8_t d1 = (*(grub_uint32_t *) dstptr >> 0) & 0xFF; |
| grub_uint8_t d2 = (*(grub_uint32_t *) dstptr >> 8) & 0xFF; |
| grub_uint8_t d3 = (*(grub_uint32_t *) dstptr >> 16) & 0xFF; |
| |
| ((grub_uint8_t *) dstptr)[0] = alpha_dilute (d1, s1, a); |
| ((grub_uint8_t *) dstptr)[1] = alpha_dilute (d2, s2, a); |
| ((grub_uint8_t *) dstptr)[2] = alpha_dilute (d3, s3, a); |
| } |
| |
| srcmask >>= 1; |
| if (!srcmask) |
| { |
| srcptr++; |
| srcmask = 0x80; |
| } |
| |
| dstptr += 3; |
| } |
| |
| srcptr += srcrowskipbyte; |
| if (srcmask >> srcrowskipbit) |
| srcmask >>= srcrowskipbit; |
| else |
| { |
| srcptr++; |
| srcmask <<= 8 - srcrowskipbit; |
| } |
| dstptr += dstrowskip; |
| } |
| } |
| #endif |
| |
| /* Optimized blending blitter for 1-bit to XXX888. */ |
| static void |
| grub_video_fbblit_blend_XXX565_1bit (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; |
| grub_uint8_t *srcptr; |
| grub_uint16_t *dstptr; |
| grub_uint8_t srcmask; |
| unsigned int dstrowskip; |
| unsigned int srcrowskipbyte, srcrowskipbit; |
| grub_uint16_t fgcolor, bgcolor; |
| int bit_index; |
| |
| /* Calculate the number of bytes to advance from the end of one line |
| to the beginning of the next line. */ |
| dstrowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width; |
| srcrowskipbyte = (src->mode_info->width - width) >> 3; |
| srcrowskipbit = (src->mode_info->width - width) & 7; |
| |
| bit_index = offset_y * src->mode_info->width + offset_x; |
| srcptr = (grub_uint8_t *) src->data + (bit_index >> 3); |
| srcmask = 1 << (~bit_index & 7); |
| dstptr = grub_video_fb_get_video_ptr (dst, x, y); |
| |
| fgcolor = grub_video_fb_map_rgba (src->mode_info->fg_red, |
| src->mode_info->fg_green, |
| src->mode_info->fg_blue, |
| src->mode_info->fg_alpha); |
| |
| bgcolor = grub_video_fb_map_rgba (src->mode_info->bg_red, |
| src->mode_info->bg_green, |
| src->mode_info->bg_blue, |
| src->mode_info->bg_alpha); |
| |
| for (j = 0; j < height; j++) |
| { |
| for (i = 0; i < width; i++) |
| { |
| grub_uint32_t color; |
| grub_uint8_t a; |
| if (*srcptr & srcmask) |
| { |
| color = fgcolor; |
| a = src->mode_info->fg_alpha; |
| } |
| else |
| { |
| color = bgcolor; |
| a = src->mode_info->bg_alpha; |
| } |
| |
| if (a == 255) |
| *dstptr = color; |
| else if (a != 0) |
| { |
| grub_uint8_t s1 = (color >> 0) & 0x1F; |
| grub_uint8_t s2 = (color >> 5) & 0x3F; |
| grub_uint8_t s3 = (color >> 11) & 0x1F; |
| |
| grub_uint8_t d1 = (*dstptr >> 0) & 0x1F; |
| grub_uint8_t d2 = (*dstptr >> 5) & 0x3F; |
| grub_uint8_t d3 = (*dstptr >> 11) & 0x1F; |
| |
| d1 = alpha_dilute (d1, s1, a); |
| d2 = alpha_dilute (d2, s2, a); |
| d3 = alpha_dilute (d3, s3, a); |
| |
| *dstptr = (d1 & 0x1f) | ((d2 & 0x3f) << 5) | ((d3 & 0x1f) << 11); |
| } |
| |
| srcmask >>= 1; |
| if (!srcmask) |
| { |
| srcptr++; |
| srcmask = 0x80; |
| } |
| |
| dstptr++; |
| } |
| |
| srcptr += srcrowskipbyte; |
| if (srcmask >> srcrowskipbit) |
| srcmask >>= srcrowskipbit; |
| else |
| { |
| srcptr++; |
| srcmask <<= 8 - srcrowskipbit; |
| } |
| GRUB_VIDEO_FB_ADVANCE_POINTER (dstptr, dstrowskip); |
| } |
| } |
| |
| /* NOTE: This function assumes that given coordinates are within bounds of |
| handled data. */ |
| void |
| grub_video_fb_dispatch_blit (struct grub_video_fbblit_info *target, |
| struct grub_video_fbblit_info *source, |
| enum grub_video_blit_operators oper, int x, int y, |
| unsigned int width, unsigned int height, |
| int offset_x, int offset_y) |
| { |
| if (oper == GRUB_VIDEO_BLIT_REPLACE) |
| { |
| /* Try to figure out more optimized version for replace operator. */ |
| switch (source->mode_info->blit_format) |
| { |
| case GRUB_VIDEO_BLIT_FORMAT_RGBA_8888: |
| switch (target->mode_info->blit_format) |
| { |
| case GRUB_VIDEO_BLIT_FORMAT_RGBA_8888: |
| grub_video_fbblit_replace_directN (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case GRUB_VIDEO_BLIT_FORMAT_BGRA_8888: |
| grub_video_fbblit_replace_BGRX8888_RGBX8888 (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case GRUB_VIDEO_BLIT_FORMAT_BGR_888: |
| grub_video_fbblit_replace_BGR888_RGBX8888 (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case GRUB_VIDEO_BLIT_FORMAT_RGB_888: |
| grub_video_fbblit_replace_RGB888_RGBX8888 (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case GRUB_VIDEO_BLIT_FORMAT_INDEXCOLOR: |
| grub_video_fbblit_replace_index_RGBX8888 (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| default: |
| break; |
| } |
| break; |
| case GRUB_VIDEO_BLIT_FORMAT_RGB_888: |
| switch (target->mode_info->blit_format) |
| { |
| case GRUB_VIDEO_BLIT_FORMAT_BGRA_8888: |
| grub_video_fbblit_replace_BGRX8888_RGB888 (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case GRUB_VIDEO_BLIT_FORMAT_RGBA_8888: |
| grub_video_fbblit_replace_RGBX8888_RGB888 (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case GRUB_VIDEO_BLIT_FORMAT_BGR_888: |
| grub_video_fbblit_replace_BGR888_RGB888 (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case GRUB_VIDEO_BLIT_FORMAT_RGB_888: |
| grub_video_fbblit_replace_directN (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case GRUB_VIDEO_BLIT_FORMAT_INDEXCOLOR: |
| grub_video_fbblit_replace_index_RGB888 (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| default: |
| break; |
| } |
| break; |
| case GRUB_VIDEO_BLIT_FORMAT_BGRA_8888: |
| switch (target->mode_info->blit_format) |
| { |
| case GRUB_VIDEO_BLIT_FORMAT_BGRA_8888: |
| grub_video_fbblit_replace_directN (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| default: |
| break; |
| } |
| break; |
| case GRUB_VIDEO_BLIT_FORMAT_INDEXCOLOR: |
| switch (target->mode_info->blit_format) |
| { |
| case GRUB_VIDEO_BLIT_FORMAT_INDEXCOLOR: |
| case GRUB_VIDEO_BLIT_FORMAT_INDEXCOLOR_ALPHA: |
| grub_video_fbblit_replace_directN (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| default: |
| break; |
| } |
| break; |
| case GRUB_VIDEO_BLIT_FORMAT_INDEXCOLOR_ALPHA: |
| switch (target->mode_info->bytes_per_pixel) |
| { |
| case 4: |
| grub_video_fbblit_replace_32bit_indexa (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case 3: |
| grub_video_fbblit_replace_24bit_indexa (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case 2: |
| grub_video_fbblit_replace_16bit_indexa (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case 1: |
| grub_video_fbblit_replace_8bit_indexa (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| default: |
| break; |
| } |
| break; |
| case GRUB_VIDEO_BLIT_FORMAT_1BIT_PACKED: |
| switch (target->mode_info->bytes_per_pixel) |
| { |
| case 4: |
| grub_video_fbblit_replace_32bit_1bit (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| #ifdef GRUB_HAVE_UNALIGNED_ACCESS |
| case 3: |
| grub_video_fbblit_replace_24bit_1bit (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| #endif |
| case 2: |
| grub_video_fbblit_replace_16bit_1bit (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case 1: |
| grub_video_fbblit_replace_8bit_1bit (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| /* No optimized replace operator found, use default (slow) blitter. */ |
| grub_video_fbblit_replace (target, source, x, y, width, height, |
| offset_x, offset_y); |
| } |
| else |
| { |
| /* Try to figure out more optimized blend operator. */ |
| switch (source->mode_info->blit_format) |
| { |
| case GRUB_VIDEO_BLIT_FORMAT_RGBA_8888: |
| switch (target->mode_info->blit_format) |
| { |
| case GRUB_VIDEO_BLIT_FORMAT_BGRA_8888: |
| grub_video_fbblit_blend_BGRA8888_RGBA8888 (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case GRUB_VIDEO_BLIT_FORMAT_RGBA_8888: |
| grub_video_fbblit_blend_RGBA8888_RGBA8888 (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case GRUB_VIDEO_BLIT_FORMAT_BGR_888: |
| grub_video_fbblit_blend_BGR888_RGBA8888 (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case GRUB_VIDEO_BLIT_FORMAT_RGB_888: |
| grub_video_fbblit_blend_RGB888_RGBA8888 (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case GRUB_VIDEO_BLIT_FORMAT_INDEXCOLOR: |
| grub_video_fbblit_blend_index_RGBA8888 (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| default: |
| break; |
| } |
| break; |
| case GRUB_VIDEO_BLIT_FORMAT_RGB_888: |
| /* Note: There is really no alpha information here, so blend is |
| changed to replace. */ |
| |
| switch (target->mode_info->blit_format) |
| { |
| case GRUB_VIDEO_BLIT_FORMAT_BGRA_8888: |
| grub_video_fbblit_replace_BGRX8888_RGB888 (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case GRUB_VIDEO_BLIT_FORMAT_RGBA_8888: |
| grub_video_fbblit_replace_RGBX8888_RGB888 (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case GRUB_VIDEO_BLIT_FORMAT_BGR_888: |
| grub_video_fbblit_replace_BGR888_RGB888 (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case GRUB_VIDEO_BLIT_FORMAT_RGB_888: |
| grub_video_fbblit_replace_directN (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case GRUB_VIDEO_BLIT_FORMAT_INDEXCOLOR: |
| grub_video_fbblit_replace_index_RGB888 (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| default: |
| break; |
| } |
| break; |
| case GRUB_VIDEO_BLIT_FORMAT_1BIT_PACKED: |
| switch (target->mode_info->blit_format) |
| { |
| case GRUB_VIDEO_BLIT_FORMAT_BGRA_8888: |
| case GRUB_VIDEO_BLIT_FORMAT_RGBA_8888: |
| grub_video_fbblit_blend_XXXA8888_1bit (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| #ifdef GRUB_HAVE_UNALIGNED_ACCESS |
| case GRUB_VIDEO_BLIT_FORMAT_BGR_888: |
| case GRUB_VIDEO_BLIT_FORMAT_RGB_888: |
| grub_video_fbblit_blend_XXX888_1bit (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| #endif |
| case GRUB_VIDEO_BLIT_FORMAT_BGR_565: |
| case GRUB_VIDEO_BLIT_FORMAT_RGB_565: |
| grub_video_fbblit_blend_XXX565_1bit (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| default: |
| break; |
| } |
| break; |
| case GRUB_VIDEO_BLIT_FORMAT_INDEXCOLOR_ALPHA: |
| switch (target->mode_info->bytes_per_pixel) |
| { |
| case 4: |
| grub_video_fbblit_blend_32bit_indexa (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case 3: |
| grub_video_fbblit_blend_24bit_indexa (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case 2: |
| grub_video_fbblit_blend_16bit_indexa (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| case 1: |
| grub_video_fbblit_blend_8bit_indexa (target, source, |
| x, y, width, height, |
| offset_x, offset_y); |
| return; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| /* No optimized blend operation found, use default (slow) blitter. */ |
| grub_video_fbblit_blend (target, source, x, y, width, height, |
| offset_x, offset_y); |
| } |
| } |
