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-rw-r--r--contrib/syslinux/latest/com32/lib/sys/vesa/drawtxt.c317
1 files changed, 0 insertions, 317 deletions
diff --git a/contrib/syslinux/latest/com32/lib/sys/vesa/drawtxt.c b/contrib/syslinux/latest/com32/lib/sys/vesa/drawtxt.c
deleted file mode 100644
index 85a9e97..0000000
--- a/contrib/syslinux/latest/com32/lib/sys/vesa/drawtxt.c
+++ /dev/null
@@ -1,317 +0,0 @@
-/* ----------------------------------------------------------------------- *
- *
- * Copyright 2006-2008 H. Peter Anvin - All Rights Reserved
- *
- * Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom
- * the Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall
- * be included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- * ----------------------------------------------------------------------- */
-
-#include <inttypes.h>
-#include <colortbl.h>
-#include <string.h>
-#include "vesa.h"
-#include "video.h"
-#include "fill.h"
-
-/*
- * Visible cursor information
- */
-static uint8_t cursor_pattern[FONT_MAX_HEIGHT];
-static struct vesa_char *cursor_pointer = NULL;
-static int cursor_x, cursor_y;
-
-static inline void *copy_dword(void *dst, void *src, size_t dword_count)
-{
- asm volatile ("rep; movsl":"+D" (dst), "+S"(src), "+c"(dword_count));
- return dst; /* Updated destination pointer */
-}
-
-static inline __attribute__ ((always_inline))
-uint8_t alpha_val(uint8_t fg, uint8_t bg, uint8_t alpha)
-{
- unsigned int tmp;
-
- tmp = __vesacon_srgb_to_linear[fg] * alpha;
- tmp += __vesacon_srgb_to_linear[bg] * (255 - alpha);
-
- return __vesacon_linear_to_srgb[tmp >> 12];
-}
-
-static uint32_t alpha_pixel(uint32_t fg, uint32_t bg)
-{
- uint8_t alpha = fg >> 24;
- uint8_t fg_r = fg >> 16;
- uint8_t fg_g = fg >> 8;
- uint8_t fg_b = fg;
- uint8_t bg_r = bg >> 16;
- uint8_t bg_g = bg >> 8;
- uint8_t bg_b = bg;
-
- return
- (alpha_val(fg_r, bg_r, alpha) << 16) |
- (alpha_val(fg_g, bg_g, alpha) << 8) | (alpha_val(fg_b, bg_b, alpha));
-}
-
-static void vesacon_update_characters(int row, int col, int nrows, int ncols)
-{
- const int height = __vesacon_font_height;
- const int width = FONT_WIDTH;
- uint32_t *bgrowptr, *bgptr, bgval, fgval;
- uint32_t fgcolor = 0, bgcolor = 0, color;
- uint8_t chbits = 0, chxbits = 0, chsbits = 0;
- int i, j, jx, pixrow, pixsrow;
- struct vesa_char *rowptr, *rowsptr, *cptr, *csptr;
- unsigned int bytes_per_pixel = __vesacon_bytes_per_pixel;
- unsigned long pixel_offset;
- uint32_t row_buffer[__vesa_info.mi.h_res], *rowbufptr;
- size_t fbrowptr;
- uint8_t sha;
-
- pixel_offset = ((row * height + VIDEO_BORDER) * __vesa_info.mi.h_res) +
- (col * width + VIDEO_BORDER);
-
- bgrowptr = &__vesacon_background[pixel_offset];
- fbrowptr = (row * height + VIDEO_BORDER) * __vesa_info.mi.logical_scan +
- (col * width + VIDEO_BORDER) * bytes_per_pixel;
-
- /* Note that we keep a 1-character guard area around the real text area... */
- rowptr = &__vesacon_text_display[(row+1)*(__vesacon_text_cols+2)+(col+1)];
- rowsptr = rowptr - ((__vesacon_text_cols+2)+1);
- pixrow = 0;
- pixsrow = height - 1;
-
- for (i = height * nrows; i >= 0; i--) {
- bgptr = bgrowptr;
- rowbufptr = row_buffer;
-
- cptr = rowptr;
- csptr = rowsptr;
-
- chsbits = __vesacon_graphics_font[csptr->ch][pixsrow];
- if (__unlikely(csptr == cursor_pointer))
- chsbits |= cursor_pattern[pixsrow];
- sha = console_color_table[csptr->attr].shadow;
- chsbits &= (sha & 0x02) ? 0xff : 0x00;
- chsbits ^= (sha & 0x01) ? 0xff : 0x00;
- chsbits <<= (width - 2);
- csptr++;
-
- /* Draw two pixels beyond the end of the line. One for the shadow,
- and one to make sure we have a whole dword of data for the copy
- operation at the end. Note that this code depends on the fact that
- all characters begin on dword boundaries in the frame buffer. */
-
- for (jx = 1, j = width * ncols + 1; j >= 0; j--) {
- chbits <<= 1;
- chsbits <<= 1;
- chxbits <<= 1;
-
- switch (jx) {
- case 1:
- chbits = __vesacon_graphics_font[cptr->ch][pixrow];
- if (__unlikely(cptr == cursor_pointer))
- chbits |= cursor_pattern[pixrow];
- sha = console_color_table[cptr->attr].shadow;
- chxbits = chbits;
- chxbits &= (sha & 0x02) ? 0xff : 0x00;
- chxbits ^= (sha & 0x01) ? 0xff : 0x00;
- fgcolor = console_color_table[cptr->attr].argb_fg;
- bgcolor = console_color_table[cptr->attr].argb_bg;
- cptr++;
- jx--;
- break;
- case 0:
- chsbits = __vesacon_graphics_font[csptr->ch][pixsrow];
- if (__unlikely(csptr == cursor_pointer))
- chsbits |= cursor_pattern[pixsrow];
- sha = console_color_table[csptr->attr].shadow;
- chsbits &= (sha & 0x02) ? 0xff : 0x00;
- chsbits ^= (sha & 0x01) ? 0xff : 0x00;
- csptr++;
- jx = width - 1;
- break;
- default:
- jx--;
- break;
- }
-
- /* If this pixel is raised, use the offsetted value */
- bgval = (chxbits & 0x80)
- ? bgptr[__vesa_info.mi.h_res + 1] : *bgptr;
- bgptr++;
-
- /* If this pixel is set, use the fg color, else the bg color */
- fgval = (chbits & 0x80) ? fgcolor : bgcolor;
-
- /* Produce the combined color pixel value */
- color = alpha_pixel(fgval, bgval);
-
- /* Apply the shadow (75% shadow) */
- if ((chsbits & ~chxbits) & 0x80) {
- color >>= 2;
- color &= 0x3f3f3f;
- }
-
- *rowbufptr++ = color;
- }
-
- /* Copy to frame buffer */
- __vesacon_copy_to_screen(fbrowptr, row_buffer, rowbufptr - row_buffer);
-
- bgrowptr += __vesa_info.mi.h_res;
- fbrowptr += __vesa_info.mi.logical_scan;
-
- if (++pixrow == height) {
- rowptr += __vesacon_text_cols + 2;
- pixrow = 0;
- }
- if (++pixsrow == height) {
- rowsptr += __vesacon_text_cols + 2;
- pixsrow = 0;
- }
- }
-}
-
-/* Bounding box for changed text. The (x1, y1) coordinates are +1! */
-static unsigned int upd_x0 = -1U, upd_x1, upd_y0 = -1U, upd_y1;
-
-/* Update the range already touched by various variables */
-void __vesacon_doit(void)
-{
- if (upd_x1 > upd_x0 && upd_y1 > upd_y0) {
- vesacon_update_characters(upd_y0, upd_x0, upd_y1 - upd_y0,
- upd_x1 - upd_x0);
- upd_x0 = upd_y0 = -1U;
- upd_x1 = upd_y1 = 0;
- }
-}
-
-/* Mark a range for update; note argument sequence is the same as
- vesacon_update_characters() */
-static inline void vesacon_touch(int row, int col, int rows, int cols)
-{
- unsigned int y0 = row;
- unsigned int x0 = col;
- unsigned int y1 = y0 + rows;
- unsigned int x1 = x0 + cols;
-
- if (y0 < upd_y0)
- upd_y0 = y0;
- if (y1 > upd_y1)
- upd_y1 = y1;
- if (x0 < upd_x0)
- upd_x0 = x0;
- if (x1 > upd_x1)
- upd_x1 = x1;
-}
-
-/* Erase a region of the screen */
-void __vesacon_erase(int x0, int y0, int x1, int y1, attr_t attr)
-{
- int y;
- struct vesa_char *ptr = &__vesacon_text_display
- [(y0 + 1) * (__vesacon_text_cols + 2) + (x0 + 1)];
- struct vesa_char fill = {
- .ch = ' ',
- .attr = attr,
- };
- int ncols = x1 - x0 + 1;
-
- for (y = y0; y <= y1; y++) {
- vesacon_fill(ptr, fill, ncols);
- ptr += __vesacon_text_cols + 2;
- }
-
- vesacon_touch(y0, x0, y1 - y0 + 1, ncols);
-}
-
-/* Scroll the screen up */
-void __vesacon_scroll_up(int nrows, attr_t attr)
-{
- struct vesa_char *fromptr = &__vesacon_text_display
- [(nrows + 1) * (__vesacon_text_cols + 2)];
- struct vesa_char *toptr = &__vesacon_text_display
- [(__vesacon_text_cols + 2)];
- int dword_count =
- (__vesacon_text_rows - nrows) * (__vesacon_text_cols + 2);
- struct vesa_char fill = {
- .ch = ' ',
- .attr = attr,
- };
-
- toptr = copy_dword(toptr, fromptr, dword_count);
-
- dword_count = nrows * (__vesacon_text_cols + 2);
-
- vesacon_fill(toptr, fill, dword_count);
-
- vesacon_touch(0, 0, __vesacon_text_rows, __vesacon_text_cols);
-}
-
-/* Draw one character text at a specific area of the screen */
-void __vesacon_write_char(int x, int y, uint8_t ch, attr_t attr)
-{
- struct vesa_char *ptr = &__vesacon_text_display
- [(y + 1) * (__vesacon_text_cols + 2) + (x + 1)];
-
- ptr->ch = ch;
- ptr->attr = attr;
-
- vesacon_touch(y, x, 1, 1);
-}
-
-void __vesacon_set_cursor(int x, int y, bool visible)
-{
- struct vesa_char *ptr = &__vesacon_text_display
- [(y + 1) * (__vesacon_text_cols + 2) + (x + 1)];
-
- if (cursor_pointer)
- vesacon_touch(cursor_y, cursor_x, 1, 1);
-
- if (!visible) {
- /* Invisible cursor */
- cursor_pointer = NULL;
- } else {
- cursor_pointer = ptr;
- vesacon_touch(y, x, 1, 1);
- }
-
- cursor_x = x;
- cursor_y = y;
-}
-
-void __vesacon_init_cursor(int font_height)
-{
- int r0 = font_height - (font_height < 10 ? 2 : 3);
-
- if (r0 < 0)
- r0 = 0;
-
- memset(cursor_pattern, 0, font_height);
- cursor_pattern[r0] = 0xff;
- cursor_pattern[r0 + 1] = 0xff;
-}
-
-void __vesacon_redraw_text(void)
-{
- vesacon_update_characters(0, 0, __vesacon_text_rows, __vesacon_text_cols);
-}
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