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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/ipxe/src/hci/mucurses/mucurses.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/ipxe/src/hci/mucurses/mucurses.c')
-rw-r--r--qemu/roms/ipxe/src/hci/mucurses/mucurses.c156
1 files changed, 156 insertions, 0 deletions
diff --git a/qemu/roms/ipxe/src/hci/mucurses/mucurses.c b/qemu/roms/ipxe/src/hci/mucurses/mucurses.c
new file mode 100644
index 000000000..b67445baf
--- /dev/null
+++ b/qemu/roms/ipxe/src/hci/mucurses/mucurses.c
@@ -0,0 +1,156 @@
+#include <curses.h>
+#include "mucurses.h"
+
+/** @file
+ *
+ * MuCurses core functions
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+static void _wupdcurs ( WINDOW *win ) __nonnull;
+void _wputch ( WINDOW *win, chtype ch, int wrap ) __nonnull;
+void _wputc ( WINDOW *win, char c, int wrap ) __nonnull;
+void _wcursback ( WINDOW *win ) __nonnull;
+void _wputchstr ( WINDOW *win, const chtype *chstr, int wrap, int n ) __nonnull;
+void _wputstr ( WINDOW *win, const char *str, int wrap, int n ) __nonnull;
+int wmove ( WINDOW *win, int y, int x ) __nonnull;
+
+WINDOW _stdscr = {
+ .attrs = A_DEFAULT,
+ .ori_y = 0,
+ .ori_x = 0,
+ .curs_y = 0,
+ .curs_x = 0,
+ .scr = &_ansi_screen,
+};
+
+/*
+ * Primitives
+ */
+
+/**
+ * Update cursor position
+ *
+ * @v *win window in which to update position
+ */
+static void _wupdcurs ( WINDOW *win ) {
+ win->scr->movetoyx ( win->scr, win->ori_y + win->curs_y,
+ win->ori_x + win->curs_x );
+}
+
+/**
+ * Write a single character rendition to a window
+ *
+ * @v *win window in which to write
+ * @v ch character rendition to write
+ * @v wrap wrap "switch"
+ */
+void _wputch ( WINDOW *win, chtype ch, int wrap ) {
+ /* make sure we set the screen cursor to the right position
+ first! */
+ _wupdcurs(win);
+ win->scr->putc(win->scr, ch);
+ if ( ++(win->curs_x) - win->width == 0 ) {
+ if ( wrap == WRAP ) {
+ win->curs_x = 0;
+ /* specification says we should really scroll,
+ but we have no buffer to scroll with, so we
+ can only overwrite back at the beginning of
+ the window */
+ if ( ++(win->curs_y) - win->height == 0 )
+ win->curs_y = 0;
+ } else {
+ (win->curs_x)--;
+ }
+ }
+}
+
+/**
+ * Write a single character to a window
+ *
+ * @v *win window in which to write
+ * @v c character rendition to write
+ * @v wrap wrap "switch"
+ */
+void _wputc ( WINDOW *win, char c, int wrap ) {
+ _wputch ( win, ( ( ( unsigned char ) c ) | win->attrs ), wrap );
+}
+
+/**
+ * Retreat the cursor back one position (useful for a whole host of
+ * ops)
+ *
+ * @v *win window in which to retreat
+ */
+void _wcursback ( WINDOW *win ) {
+ if ( win->curs_x == 0 ) {
+ if ( win->curs_y == 0 )
+ win->curs_y = win->height - 1;
+ win->curs_x = win->width = 1;
+ } else {
+ win->curs_x--;
+ }
+
+ _wupdcurs(win);
+}
+
+/**
+ * Write a chtype string to a window
+ *
+ * @v *win window in which to write
+ * @v *chstr chtype string
+ * @v wrap wrap "switch"
+ * @v n write at most n chtypes
+ */
+void _wputchstr ( WINDOW *win, const chtype *chstr, int wrap, int n ) {
+ for ( ; *chstr && n-- ; chstr++ ) {
+ _wputch(win,*chstr,wrap);
+ }
+}
+
+/**
+ * Write a standard c-style string to a window
+ *
+ * @v *win window in which to write
+ * @v *str string
+ * @v wrap wrap "switch"
+ * @v n write at most n chars from *str
+ */
+void _wputstr ( WINDOW *win, const char *str, int wrap, int n ) {
+ for ( ; *str && n-- ; str++ ) {
+ _wputc ( win, *str, wrap );
+ }
+}
+
+/**
+ * Move a window's cursor to the specified position
+ *
+ * @v *win window to be operated on
+ * @v y Y position
+ * @v x X position
+ * @ret rc return status code
+ */
+int wmove ( WINDOW *win, int y, int x ) {
+ /* chech for out-of-bounds errors */
+ if ( ( (unsigned)y >= win->height ) ||
+ ( (unsigned)x >= win->width ) ) {
+ return ERR;
+ }
+
+ win->curs_y = y;
+ win->curs_x = x;
+ _wupdcurs(win);
+ return OK;
+}
+
+/**
+ * Set cursor visibility
+ *
+ * @v visibility cursor visibility
+ */
+int curs_set ( int visibility ) {
+ stdscr->scr->cursor ( stdscr->scr, visibility );
+ return OK;
+}