--- /dev/null
+/*
+ * Creation Date: <2002/10/23 20:26:40 samuel>
+ * Time-stamp: <2004/01/07 19:39:15 samuel>
+ *
+ * <video_common.c>
+ *
+ * Shared video routines
+ *
+ * Copyright (C) 2002, 2003, 2004 Samuel Rydh (samuel@ibrium.se)
+ *
+ * This program 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
+ *
+ */
+
+#include "config.h"
+#include "libc/vsprintf.h"
+#include "libopenbios/bindings.h"
+#include "libopenbios/fontdata.h"
+#include "libopenbios/ofmem.h"
+#include "libopenbios/video.h"
+#include "packages/video.h"
+#include "drivers/vga.h"
+#define NO_QEMU_PROTOS
+#include "arch/common/fw_cfg.h"
+
+struct video_info video;
+
+unsigned long
+video_get_color( int col_ind )
+{
+ unsigned long col;
+ if( !VIDEO_DICT_VALUE(video.ih) || col_ind < 0 || col_ind > 255 )
+ return 0;
+ if( VIDEO_DICT_VALUE(video.depth) == 8 )
+ return col_ind;
+ col = video.pal[col_ind];
+ if( VIDEO_DICT_VALUE(video.depth) == 24 || VIDEO_DICT_VALUE(video.depth) == 32 )
+ return col;
+ if( VIDEO_DICT_VALUE(video.depth) == 15 )
+ return ((col>>9) & 0x7c00) | ((col>>6) & 0x03e0) | ((col>>3) & 0x1f);
+ return 0;
+}
+
+/* ( fbaddr maskaddr width height fgcolor bgcolor -- ) */
+
+void
+video_mask_blit(void)
+{
+ ucell bgcolor = POP();
+ ucell fgcolor = POP();
+ ucell height = POP();
+ ucell width = POP();
+ unsigned char *mask = (unsigned char *)POP();
+ unsigned char *fbaddr = (unsigned char *)POP();
+
+ ucell color;
+ unsigned char *dst, *rowdst;
+ int x, y, m, b, d, depthbytes;
+
+ fgcolor = video_get_color(fgcolor);
+ bgcolor = video_get_color(bgcolor);
+ d = VIDEO_DICT_VALUE(video.depth);
+ depthbytes = (d + 1) >> 3;
+
+ dst = fbaddr;
+ for( y = 0; y < height; y++) {
+ rowdst = dst;
+ for( x = 0; x < (width + 1) >> 3; x++ ) {
+ for (b = 0; b < 8; b++) {
+ m = (1 << (7 - b));
+
+ if (*mask & m) {
+ color = fgcolor;
+ } else {
+ color = bgcolor;
+ }
+
+ if( d >= 24 )
+ *((uint32_t*)dst) = color;
+ else if( d >= 15 )
+ *((uint16_t*)dst) = color;
+ else
+ *dst = color;
+
+ dst += depthbytes;
+ }
+ mask++;
+ }
+ dst = rowdst;
+ dst += VIDEO_DICT_VALUE(video.rb);
+ }
+}
+
+/* ( x y w h fgcolor bgcolor -- ) */
+
+void
+video_invert_rect( void )
+{
+ ucell bgcolor = POP();
+ ucell fgcolor = POP();
+ int h = POP();
+ int w = POP();
+ int y = POP();
+ int x = POP();
+ char *pp;
+
+ bgcolor = video_get_color(bgcolor);
+ fgcolor = video_get_color(fgcolor);
+
+ if (!VIDEO_DICT_VALUE(video.ih) || x < 0 || y < 0 || w <= 0 || h <= 0 ||
+ x + w > VIDEO_DICT_VALUE(video.w) || y + h > VIDEO_DICT_VALUE(video.h))
+ return;
+
+ pp = (char*)VIDEO_DICT_VALUE(video.mvirt) + VIDEO_DICT_VALUE(video.rb) * y;
+ for( ; h--; pp += *(video.rb) ) {
+ int ww = w;
+ if( VIDEO_DICT_VALUE(video.depth) == 24 || VIDEO_DICT_VALUE(video.depth) == 32 ) {
+ uint32_t *p = (uint32_t*)pp + x;
+ while( ww-- ) {
+ if (*p == fgcolor) {
+ *p++ = bgcolor;
+ } else if (*p == bgcolor) {
+ *p++ = fgcolor;
+ }
+ }
+ } else if( VIDEO_DICT_VALUE(video.depth) == 16 || VIDEO_DICT_VALUE(video.depth) == 15 ) {
+ uint16_t *p = (uint16_t*)pp + x;
+ while( ww-- ) {
+ if (*p == (uint16_t)fgcolor) {
+ *p++ = bgcolor;
+ } else if (*p == (uint16_t)bgcolor) {
+ *p++ = fgcolor;
+ }
+ }
+ } else {
+ char *p = (char *)(pp + x);
+
+ while( ww-- ) {
+ if (*p == (char)fgcolor) {
+ *p++ = bgcolor;
+ } else if (*p == (char)bgcolor) {
+ *p++ = fgcolor;
+ }
+ }
+ }
+ }
+}
+
+/* ( color_ind x y width height -- ) (?) */
+void
+video_fill_rect(void)
+{
+ int h = POP();
+ int w = POP();
+ int y = POP();
+ int x = POP();
+ int col_ind = POP();
+
+ char *pp;
+ unsigned long col = video_get_color(col_ind);
+
+ if (!VIDEO_DICT_VALUE(video.ih) || x < 0 || y < 0 || w <= 0 || h <= 0 ||
+ x + w > VIDEO_DICT_VALUE(video.w) || y + h > VIDEO_DICT_VALUE(video.h))
+ return;
+
+ pp = (char*)VIDEO_DICT_VALUE(video.mvirt) + VIDEO_DICT_VALUE(video.rb) * y;
+ for( ; h--; pp += VIDEO_DICT_VALUE(video.rb) ) {
+ int ww = w;
+ if( VIDEO_DICT_VALUE(video.depth) == 24 || VIDEO_DICT_VALUE(video.depth) == 32 ) {
+ uint32_t *p = (uint32_t*)pp + x;
+ while( ww-- )
+ *p++ = col;
+ } else if( VIDEO_DICT_VALUE(video.depth) == 16 || VIDEO_DICT_VALUE(video.depth) == 15 ) {
+ uint16_t *p = (uint16_t*)pp + x;
+ while( ww-- )
+ *p++ = col;
+ } else {
+ char *p = (char *)(pp + x);
+
+ while( ww-- )
+ *p++ = col;
+ }
+ }
+}
+
+void setup_video()
+{
+ /* Make everything inside the video_info structure point to the
+ values in the Forth dictionary. Hence everything is always in
+ sync. */
+ phandle_t options;
+ char buf[6];
+
+ feval("['] display-ih cell+");
+ video.ih = cell2pointer(POP());
+
+ feval("['] frame-buffer-adr cell+");
+ video.mvirt = cell2pointer(POP());
+ feval("['] openbios-video-width cell+");
+ video.w = cell2pointer(POP());
+ feval("['] openbios-video-height cell+");
+ video.h = cell2pointer(POP());
+ feval("['] depth-bits cell+");
+ video.depth = cell2pointer(POP());
+ feval("['] line-bytes cell+");
+ video.rb = cell2pointer(POP());
+ feval("['] color-palette cell+");
+ video.pal = cell2pointer(POP());
+
+ /* Set global variables ready for fb8-install */
+ PUSH( pointer2cell(video_mask_blit) );
+ fword("is-noname-cfunc");
+ feval("to fb8-blitmask");
+ PUSH( pointer2cell(video_fill_rect) );
+ fword("is-noname-cfunc");
+ feval("to fb8-fillrect");
+ PUSH( pointer2cell(video_invert_rect) );
+ fword("is-noname-cfunc");
+ feval("to fb8-invertrect");
+
+ /* Static information */
+ PUSH((ucell)fontdata);
+ feval("to (romfont)");
+ PUSH(FONT_HEIGHT);
+ feval("to (romfont-height)");
+ PUSH(FONT_WIDTH);
+ feval("to (romfont-width)");
+
+ /* Initialise the structure */
+ VIDEO_DICT_VALUE(video.w) = VGA_DEFAULT_WIDTH;
+ VIDEO_DICT_VALUE(video.h) = VGA_DEFAULT_HEIGHT;
+ VIDEO_DICT_VALUE(video.depth) = VGA_DEFAULT_DEPTH;
+ VIDEO_DICT_VALUE(video.rb) = VGA_DEFAULT_LINEBYTES;
+
+#if defined(CONFIG_QEMU) && (defined(CONFIG_PPC) || defined(CONFIG_SPARC32) || defined(CONFIG_SPARC64))
+ /* If running from QEMU, grab the parameters from the firmware interface */
+ int w, h, d;
+
+ w = fw_cfg_read_i16(FW_CFG_ARCH_WIDTH);
+ h = fw_cfg_read_i16(FW_CFG_ARCH_HEIGHT);
+ d = fw_cfg_read_i16(FW_CFG_ARCH_DEPTH);
+ if (w && h && d) {
+ VIDEO_DICT_VALUE(video.w) = w;
+ VIDEO_DICT_VALUE(video.h) = h;
+ VIDEO_DICT_VALUE(video.depth) = d;
+ VIDEO_DICT_VALUE(video.rb) = (w * ((d + 7) / 8));
+ }
+#endif
+
+ /* Setup screen-#rows/screen-#columns */
+ options = find_dev("/options");
+ snprintf(buf, sizeof(buf), FMT_ucell, VIDEO_DICT_VALUE(video.w) / FONT_WIDTH);
+ set_property(options, "screen-#columns", buf, strlen(buf) + 1);
+ snprintf(buf, sizeof(buf), FMT_ucell, VIDEO_DICT_VALUE(video.h) / FONT_HEIGHT);
+ set_property(options, "screen-#rows", buf, strlen(buf) + 1);
+}
Code Review / kvmfornfv.git / blobdiff