mirror of
https://gitlab.com/qemu-project/qemu
synced 2024-09-06 18:05:37 +00:00
![Corentin Chary](/assets/img/avatar_default.png)
For the same reason that we don't use vnc-authentication-sasl.c but vnc-auth-sals.c. Because it's tooooo long. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
212 lines
4.7 KiB
C
212 lines
4.7 KiB
C
#define CONCAT_I(a, b) a ## b
|
|
#define CONCAT(a, b) CONCAT_I(a, b)
|
|
#define pixel_t CONCAT(uint, CONCAT(BPP, _t))
|
|
#ifdef GENERIC
|
|
#define NAME CONCAT(generic_, BPP)
|
|
#else
|
|
#define NAME BPP
|
|
#endif
|
|
|
|
static void CONCAT(send_hextile_tile_, NAME)(VncState *vs,
|
|
int x, int y, int w, int h,
|
|
void *last_bg_,
|
|
void *last_fg_,
|
|
int *has_bg, int *has_fg)
|
|
{
|
|
VncDisplay *vd = vs->vd;
|
|
uint8_t *row = vd->server->data + y * ds_get_linesize(vs->ds) + x * ds_get_bytes_per_pixel(vs->ds);
|
|
pixel_t *irow = (pixel_t *)row;
|
|
int j, i;
|
|
pixel_t *last_bg = (pixel_t *)last_bg_;
|
|
pixel_t *last_fg = (pixel_t *)last_fg_;
|
|
pixel_t bg = 0;
|
|
pixel_t fg = 0;
|
|
int n_colors = 0;
|
|
int bg_count = 0;
|
|
int fg_count = 0;
|
|
int flags = 0;
|
|
uint8_t data[(vs->clientds.pf.bytes_per_pixel + 2) * 16 * 16];
|
|
int n_data = 0;
|
|
int n_subtiles = 0;
|
|
|
|
for (j = 0; j < h; j++) {
|
|
for (i = 0; i < w; i++) {
|
|
switch (n_colors) {
|
|
case 0:
|
|
bg = irow[i];
|
|
n_colors = 1;
|
|
break;
|
|
case 1:
|
|
if (irow[i] != bg) {
|
|
fg = irow[i];
|
|
n_colors = 2;
|
|
}
|
|
break;
|
|
case 2:
|
|
if (irow[i] != bg && irow[i] != fg) {
|
|
n_colors = 3;
|
|
} else {
|
|
if (irow[i] == bg)
|
|
bg_count++;
|
|
else if (irow[i] == fg)
|
|
fg_count++;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
if (n_colors > 2)
|
|
break;
|
|
irow += ds_get_linesize(vs->ds) / sizeof(pixel_t);
|
|
}
|
|
|
|
if (n_colors > 1 && fg_count > bg_count) {
|
|
pixel_t tmp = fg;
|
|
fg = bg;
|
|
bg = tmp;
|
|
}
|
|
|
|
if (!*has_bg || *last_bg != bg) {
|
|
flags |= 0x02;
|
|
*has_bg = 1;
|
|
*last_bg = bg;
|
|
}
|
|
|
|
if (n_colors < 3 && (!*has_fg || *last_fg != fg)) {
|
|
flags |= 0x04;
|
|
*has_fg = 1;
|
|
*last_fg = fg;
|
|
}
|
|
|
|
switch (n_colors) {
|
|
case 1:
|
|
n_data = 0;
|
|
break;
|
|
case 2:
|
|
flags |= 0x08;
|
|
|
|
irow = (pixel_t *)row;
|
|
|
|
for (j = 0; j < h; j++) {
|
|
int min_x = -1;
|
|
for (i = 0; i < w; i++) {
|
|
if (irow[i] == fg) {
|
|
if (min_x == -1)
|
|
min_x = i;
|
|
} else if (min_x != -1) {
|
|
hextile_enc_cord(data + n_data, min_x, j, i - min_x, 1);
|
|
n_data += 2;
|
|
n_subtiles++;
|
|
min_x = -1;
|
|
}
|
|
}
|
|
if (min_x != -1) {
|
|
hextile_enc_cord(data + n_data, min_x, j, i - min_x, 1);
|
|
n_data += 2;
|
|
n_subtiles++;
|
|
}
|
|
irow += ds_get_linesize(vs->ds) / sizeof(pixel_t);
|
|
}
|
|
break;
|
|
case 3:
|
|
flags |= 0x18;
|
|
|
|
irow = (pixel_t *)row;
|
|
|
|
if (!*has_bg || *last_bg != bg)
|
|
flags |= 0x02;
|
|
|
|
for (j = 0; j < h; j++) {
|
|
int has_color = 0;
|
|
int min_x = -1;
|
|
pixel_t color = 0; /* shut up gcc */
|
|
|
|
for (i = 0; i < w; i++) {
|
|
if (!has_color) {
|
|
if (irow[i] == bg)
|
|
continue;
|
|
color = irow[i];
|
|
min_x = i;
|
|
has_color = 1;
|
|
} else if (irow[i] != color) {
|
|
has_color = 0;
|
|
#ifdef GENERIC
|
|
vnc_convert_pixel(vs, data + n_data, color);
|
|
n_data += vs->clientds.pf.bytes_per_pixel;
|
|
#else
|
|
memcpy(data + n_data, &color, sizeof(color));
|
|
n_data += sizeof(pixel_t);
|
|
#endif
|
|
hextile_enc_cord(data + n_data, min_x, j, i - min_x, 1);
|
|
n_data += 2;
|
|
n_subtiles++;
|
|
|
|
min_x = -1;
|
|
if (irow[i] != bg) {
|
|
color = irow[i];
|
|
min_x = i;
|
|
has_color = 1;
|
|
}
|
|
}
|
|
}
|
|
if (has_color) {
|
|
#ifdef GENERIC
|
|
vnc_convert_pixel(vs, data + n_data, color);
|
|
n_data += vs->clientds.pf.bytes_per_pixel;
|
|
#else
|
|
memcpy(data + n_data, &color, sizeof(color));
|
|
n_data += sizeof(pixel_t);
|
|
#endif
|
|
hextile_enc_cord(data + n_data, min_x, j, i - min_x, 1);
|
|
n_data += 2;
|
|
n_subtiles++;
|
|
}
|
|
irow += ds_get_linesize(vs->ds) / sizeof(pixel_t);
|
|
}
|
|
|
|
/* A SubrectsColoured subtile invalidates the foreground color */
|
|
*has_fg = 0;
|
|
if (n_data > (w * h * sizeof(pixel_t))) {
|
|
n_colors = 4;
|
|
flags = 0x01;
|
|
*has_bg = 0;
|
|
|
|
/* we really don't have to invalidate either the bg or fg
|
|
but we've lost the old values. oh well. */
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (n_colors > 3) {
|
|
flags = 0x01;
|
|
*has_fg = 0;
|
|
*has_bg = 0;
|
|
n_colors = 4;
|
|
}
|
|
|
|
vnc_write_u8(vs, flags);
|
|
if (n_colors < 4) {
|
|
if (flags & 0x02)
|
|
vs->write_pixels(vs, &vd->server->pf, last_bg, sizeof(pixel_t));
|
|
if (flags & 0x04)
|
|
vs->write_pixels(vs, &vd->server->pf, last_fg, sizeof(pixel_t));
|
|
if (n_subtiles) {
|
|
vnc_write_u8(vs, n_subtiles);
|
|
vnc_write(vs, data, n_data);
|
|
}
|
|
} else {
|
|
for (j = 0; j < h; j++) {
|
|
vs->write_pixels(vs, &vd->server->pf, row,
|
|
w * ds_get_bytes_per_pixel(vs->ds));
|
|
row += ds_get_linesize(vs->ds);
|
|
}
|
|
}
|
|
}
|
|
|
|
#undef NAME
|
|
#undef pixel_t
|
|
#undef CONCAT_I
|
|
#undef CONCAT
|