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ui: bugfixes for curses, opengl console and kbd state tracker.

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Merge remote-tracking branch 'remotes/kraxel/tags/ui-20190517-pull-request' into staging

ui: bugfixes for curses, opengl console and kbd state tracker.

# gpg: Signature made Fri 17 May 2019 17:12:30 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/ui-20190517-pull-request:
  kbd-state: fix autorepeat handling
  ui/console: Precautionary glBindTexture and surface->texture validation in surface_gl_update_texture
  ui/curses: manipulate cchar_t with standard curses functions
  ui/curses: do not assume wchar_t contains unicode

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2019-05-17 17:25:19 +01:00
commit 1b46b4daa6
3 changed files with 137 additions and 71 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
ui/console-gl.c
View File

@ -92,13 +92,17 @@ void surface_gl_update_texture(QemuGLShader *gls,
assert(gls);
glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT,
surface_stride(surface) / surface_bytes_per_pixel(surface));
glTexSubImage2D(GL_TEXTURE_2D, 0,
x, y, w, h,
surface->glformat, surface->gltype,
data + surface_stride(surface) * y
+ surface_bytes_per_pixel(surface) * x);
if (surface->texture) {
glBindTexture(GL_TEXTURE_2D, surface->texture);
glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT,
surface_stride(surface)
/ surface_bytes_per_pixel(surface));
glTexSubImage2D(GL_TEXTURE_2D, 0,
x, y, w, h,
surface->glformat, surface->gltype,
data + surface_stride(surface) * y
+ surface_bytes_per_pixel(surface) * x);
}
}
void surface_gl_render_texture(QemuGLShader *gls,

184
ui/curses.c
View File

@ -66,20 +66,22 @@ static void curses_update(DisplayChangeListener *dcl,
{
console_ch_t *line;
cchar_t curses_line[width];
wchar_t wch[CCHARW_MAX];
attr_t attrs;
short colors;
int ret;
line = screen + y * width;
for (h += y; y < h; y ++, line += width) {
for (x = 0; x < width; x++) {
chtype ch = line[x] & 0xff;
chtype at = line[x] & ~0xff;
if (vga_to_curses[ch].chars[0]) {
curses_line[x] = vga_to_curses[ch];
} else {
curses_line[x] = (cchar_t) {
.chars[0] = ch,
};
ret = getcchar(&vga_to_curses[ch], wch, &attrs, &colors, NULL);
if (ret == ERR || wch[0] == 0) {
wch[0] = ch;
wch[1] = 0;
}
curses_line[x].attr |= at;
setcchar(&curses_line[x], wch, at, 0, NULL);
}
mvwadd_wchnstr(screenpad, y, 0, curses_line, width);
}
@ -400,65 +402,112 @@ static void curses_atexit(void)
endwin();
}
/*
* In the following:
* - fch is the font glyph number
* - uch is the unicode value
* - wch is the wchar_t value (may not be unicode, e.g. on BSD/solaris)
* - mbch is the native local-dependent multibyte representation
*/
/* Setup wchar glyph for one UCS-2 char */
static void convert_ucs(int glyph, uint16_t ch, iconv_t conv)
static void convert_ucs(unsigned char fch, uint16_t uch, iconv_t conv)
{
wchar_t wch;
char *pch, *pwch;
size_t sch, swch;
char mbch[MB_LEN_MAX];
wchar_t wch[2];
char *puch, *pmbch;
size_t such, smbch;
mbstate_t ps;
pch = (char *) &ch;
pwch = (char *) &wch;
sch = sizeof(ch);
swch = sizeof(wch);
puch = (char *) &uch;
pmbch = (char *) mbch;
such = sizeof(uch);
smbch = sizeof(mbch);
if (iconv(conv, &pch, &sch, &pwch, &swch) == (size_t) -1) {
fprintf(stderr, "Could not convert 0x%04x from UCS-2 to WCHAR_T: %s\n",
ch, strerror(errno));
} else {
vga_to_curses[glyph].chars[0] = wch;
if (iconv(conv, &puch, &such, &pmbch, &smbch) == (size_t) -1) {
fprintf(stderr, "Could not convert 0x%04x "
"from UCS-2 to a multibyte character: %s\n",
uch, strerror(errno));
return;
}
memset(&ps, 0, sizeof(ps));
if (mbrtowc(&wch[0], mbch, sizeof(mbch) - smbch, &ps) == -1) {
fprintf(stderr, "Could not convert 0x%04x "
"from a multibyte character to wchar_t: %s\n",
uch, strerror(errno));
return;
}
wch[1] = 0;
setcchar(&vga_to_curses[fch], wch, 0, 0, NULL);
}
/* Setup wchar glyph for one font character */
static void convert_font(unsigned char ch, iconv_t conv)
static void convert_font(unsigned char fch, iconv_t conv)
{
wchar_t wch;
char *pch, *pwch;
size_t sch, swch;
char mbch[MB_LEN_MAX];
wchar_t wch[2];
char *pfch, *pmbch;
size_t sfch, smbch;
mbstate_t ps;
pch = (char *) &ch;
pwch = (char *) &wch;
sch = sizeof(ch);
swch = sizeof(wch);
pfch = (char *) &fch;
pmbch = (char *) &mbch;
sfch = sizeof(fch);
smbch = sizeof(mbch);
if (iconv(conv, &pch, &sch, &pwch, &swch) == (size_t) -1) {
fprintf(stderr, "Could not convert 0x%02x from %s to WCHAR_T: %s\n",
ch, font_charset, strerror(errno));
} else {
vga_to_curses[ch].chars[0] = wch;
if (iconv(conv, &pfch, &sfch, &pmbch, &smbch) == (size_t) -1) {
fprintf(stderr, "Could not convert font glyph 0x%02x "
"from %s to a multibyte character: %s\n",
fch, font_charset, strerror(errno));
return;
}
memset(&ps, 0, sizeof(ps));
if (mbrtowc(&wch[0], mbch, sizeof(mbch) - smbch, &ps) == -1) {
fprintf(stderr, "Could not convert font glyph 0x%02x "
"from a multibyte character to wchar_t: %s\n",
fch, strerror(errno));
return;
}
wch[1] = 0;
setcchar(&vga_to_curses[fch], wch, 0, 0, NULL);
}
/* Convert one wchar to UCS-2 */
static uint16_t get_ucs(wchar_t wch, iconv_t conv)
{
uint16_t ch;
char *pch, *pwch;
size_t sch, swch;
char mbch[MB_LEN_MAX];
uint16_t uch;
char *pmbch, *puch;
size_t smbch, such;
mbstate_t ps;
int ret;
pch = (char *) &ch;
pwch = (char *) &wch;
sch = sizeof(ch);
swch = sizeof(wch);
if (iconv(conv, &pwch, &swch, &pch, &sch) == (size_t) -1) {
fprintf(stderr, "Could not convert 0x%02lx from WCHAR_T to UCS-2: %s\n",
(unsigned long)wch, strerror(errno));
memset(&ps, 0, sizeof(ps));
ret = wcrtomb(mbch, wch, &ps);
if (ret == -1) {
fprintf(stderr, "Could not convert 0x%04x "
"from wchar_t to a multibyte character: %s\n",
wch, strerror(errno));
return 0xFFFD;
}
return ch;
pmbch = (char *) mbch;
puch = (char *) &uch;
smbch = ret;
such = sizeof(uch);
if (iconv(conv, &pmbch, &smbch, &puch, &such) == (size_t) -1) {
fprintf(stderr, "Could not convert 0x%04x "
"from a multibyte character to UCS-2 : %s\n",
wch, strerror(errno));
return 0xFFFD;
}
return uch;
}
/*
@ -466,6 +515,11 @@ static uint16_t get_ucs(wchar_t wch, iconv_t conv)
*/
static void font_setup(void)
{
iconv_t ucs2_to_nativecharset;
iconv_t nativecharset_to_ucs2;
iconv_t font_conv;
int i;
/*
* Control characters are normally non-printable, but VGA does have
* well-known glyphs for them.
@ -505,30 +559,25 @@ static void font_setup(void)
0x25bc
};
iconv_t ucs_to_wchar_conv;
iconv_t wchar_to_ucs_conv;
iconv_t font_conv;
int i;
ucs_to_wchar_conv = iconv_open("WCHAR_T", "UCS-2");
if (ucs_to_wchar_conv == (iconv_t) -1) {
ucs2_to_nativecharset = iconv_open(nl_langinfo(CODESET), "UCS-2");
if (ucs2_to_nativecharset == (iconv_t) -1) {
fprintf(stderr, "Could not convert font glyphs from UCS-2: '%s'\n",
strerror(errno));
exit(1);
}
wchar_to_ucs_conv = iconv_open("UCS-2", "WCHAR_T");
if (wchar_to_ucs_conv == (iconv_t) -1) {
iconv_close(ucs_to_wchar_conv);
nativecharset_to_ucs2 = iconv_open("UCS-2", nl_langinfo(CODESET));
if (nativecharset_to_ucs2 == (iconv_t) -1) {
iconv_close(ucs2_to_nativecharset);
fprintf(stderr, "Could not convert font glyphs to UCS-2: '%s'\n",
strerror(errno));
exit(1);
}
font_conv = iconv_open("WCHAR_T", font_charset);
font_conv = iconv_open(nl_langinfo(CODESET), font_charset);
if (font_conv == (iconv_t) -1) {
iconv_close(ucs_to_wchar_conv);
iconv_close(wchar_to_ucs_conv);
iconv_close(ucs2_to_nativecharset);
iconv_close(nativecharset_to_ucs2);
fprintf(stderr, "Could not convert font glyphs from %s: '%s'\n",
font_charset, strerror(errno));
exit(1);
@ -536,7 +585,7 @@ static void font_setup(void)
/* Control characters */
for (i = 0; i <= 0x1F; i++) {
convert_ucs(i, control_characters[i], ucs_to_wchar_conv);
convert_ucs(i, control_characters[i], ucs2_to_nativecharset);
}
for (i = 0x20; i <= 0xFF; i++) {
@ -544,12 +593,21 @@ static void font_setup(void)
}
/* DEL */
convert_ucs(0x7F, 0x2302, ucs_to_wchar_conv);
convert_ucs(0x7F, 0x2302, ucs2_to_nativecharset);
if (strcmp(nl_langinfo(CODESET), "UTF-8")) {
/* Non-Unicode capable, use termcap equivalents for those available */
for (i = 0; i <= 0xFF; i++) {
switch (get_ucs(vga_to_curses[i].chars[0], wchar_to_ucs_conv)) {
wchar_t wch[CCHARW_MAX];
attr_t attr;
short color;
int ret;
ret = getcchar(&vga_to_curses[i], wch, &attr, &color, NULL);
if (ret == ERR)
continue;
switch (get_ucs(wch[0], nativecharset_to_ucs2)) {
case 0x00a3:
vga_to_curses[i] = *WACS_STERLING;
break;
@ -649,8 +707,8 @@ static void font_setup(void)
}
}
}
iconv_close(ucs_to_wchar_conv);
iconv_close(wchar_to_ucs_conv);
iconv_close(ucs2_to_nativecharset);
iconv_close(nativecharset_to_ucs2);
iconv_close(font_conv);
}

6
ui/kbd-state.c
View File

@ -59,7 +59,11 @@ void qkbd_state_key_event(QKbdState *kbd, QKeyCode qcode, bool down)
}
/* update key and modifier state */
change_bit(qcode, kbd->keys);
if (down) {
set_bit(qcode, kbd->keys);
} else {
clear_bit(qcode, kbd->keys);
}
switch (qcode) {
case Q_KEY_CODE_SHIFT:
case Q_KEY_CODE_SHIFT_R: