mirror of https://gitee.com/openkylin/qemu.git
117 lines
3.5 KiB
C
117 lines
3.5 KiB
C
/*
|
|
* QEMU VNC display driver: hextile encoding
|
|
*
|
|
* Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws>
|
|
* Copyright (C) 2006 Fabrice Bellard
|
|
* Copyright (C) 2009 Red Hat, Inc
|
|
*
|
|
* 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 "vnc.h"
|
|
|
|
static void hextile_enc_cord(uint8_t *ptr, int x, int y, int w, int h)
|
|
{
|
|
ptr[0] = ((x & 0x0F) << 4) | (y & 0x0F);
|
|
ptr[1] = (((w - 1) & 0x0F) << 4) | ((h - 1) & 0x0F);
|
|
}
|
|
|
|
#define BPP 8
|
|
#include "vnc-enc-hextile-template.h"
|
|
#undef BPP
|
|
|
|
#define BPP 16
|
|
#include "vnc-enc-hextile-template.h"
|
|
#undef BPP
|
|
|
|
#define BPP 32
|
|
#include "vnc-enc-hextile-template.h"
|
|
#undef BPP
|
|
|
|
#define GENERIC
|
|
#define BPP 8
|
|
#include "vnc-enc-hextile-template.h"
|
|
#undef BPP
|
|
#undef GENERIC
|
|
|
|
#define GENERIC
|
|
#define BPP 16
|
|
#include "vnc-enc-hextile-template.h"
|
|
#undef BPP
|
|
#undef GENERIC
|
|
|
|
#define GENERIC
|
|
#define BPP 32
|
|
#include "vnc-enc-hextile-template.h"
|
|
#undef BPP
|
|
#undef GENERIC
|
|
|
|
int vnc_hextile_send_framebuffer_update(VncState *vs, int x,
|
|
int y, int w, int h)
|
|
{
|
|
int i, j;
|
|
int has_fg, has_bg;
|
|
uint8_t *last_fg, *last_bg;
|
|
VncDisplay *vd = vs->vd;
|
|
|
|
last_fg = (uint8_t *) g_malloc(vd->server->pf.bytes_per_pixel);
|
|
last_bg = (uint8_t *) g_malloc(vd->server->pf.bytes_per_pixel);
|
|
has_fg = has_bg = 0;
|
|
for (j = y; j < (y + h); j += 16) {
|
|
for (i = x; i < (x + w); i += 16) {
|
|
vs->hextile.send_tile(vs, i, j,
|
|
MIN(16, x + w - i), MIN(16, y + h - j),
|
|
last_bg, last_fg, &has_bg, &has_fg);
|
|
}
|
|
}
|
|
g_free(last_fg);
|
|
g_free(last_bg);
|
|
|
|
return 1;
|
|
}
|
|
|
|
void vnc_hextile_set_pixel_conversion(VncState *vs, int generic)
|
|
{
|
|
if (!generic) {
|
|
switch (vs->ds->surface->pf.bits_per_pixel) {
|
|
case 8:
|
|
vs->hextile.send_tile = send_hextile_tile_8;
|
|
break;
|
|
case 16:
|
|
vs->hextile.send_tile = send_hextile_tile_16;
|
|
break;
|
|
case 32:
|
|
vs->hextile.send_tile = send_hextile_tile_32;
|
|
break;
|
|
}
|
|
} else {
|
|
switch (vs->ds->surface->pf.bits_per_pixel) {
|
|
case 8:
|
|
vs->hextile.send_tile = send_hextile_tile_generic_8;
|
|
break;
|
|
case 16:
|
|
vs->hextile.send_tile = send_hextile_tile_generic_16;
|
|
break;
|
|
case 32:
|
|
vs->hextile.send_tile = send_hextile_tile_generic_32;
|
|
break;
|
|
}
|
|
}
|
|
}
|