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/*
* 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 "vnchextile.h"
#undef BPP
#define BPP 16
#include "vnchextile.h"
#undef BPP
#define BPP 32
#include "vnchextile.h"
#undef BPP
#define GENERIC
#define BPP 8
#include "vnchextile.h"
#undef BPP
#undef GENERIC
#define GENERIC
#define BPP 16
#include "vnchextile.h"
#undef BPP
#undef GENERIC
#define GENERIC
#define BPP 32
#include "vnchextile.h"
#undef BPP
#undef GENERIC
void 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 *) qemu_malloc(vd->server->pf.bytes_per_pixel);
last_bg = (uint8_t *) qemu_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->send_hextile_tile(vs, i, j,
MIN(16, x + w - i), MIN(16, y + h - j),
last_bg, last_fg, &has_bg, &has_fg);
}
}
free(last_fg);
free(last_bg);
}
void vnc_hextile_set_pixel_conversion(VncState *vs, int generic)
{
if (!generic) {
switch (vs->ds->surface->pf.bits_per_pixel) {
case 8:
vs->send_hextile_tile = send_hextile_tile_8;
break;
case 16:
vs->send_hextile_tile = send_hextile_tile_16;
break;
case 32:
vs->send_hextile_tile = send_hextile_tile_32;
break;
}
} else {
switch (vs->ds->surface->pf.bits_per_pixel) {
case 8:
vs->send_hextile_tile = send_hextile_tile_generic_8;
break;
case 16:
vs->send_hextile_tile = send_hextile_tile_generic_16;
break;
case 32:
vs->send_hextile_tile = send_hextile_tile_generic_32;
break;
}
}
}
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