mirror of https://gitee.com/openkylin/qemu.git
116 lines
3.4 KiB
C
116 lines
3.4 KiB
C
/*
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* QEMU VNC display driver: hextile encoding
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*
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* Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws>
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* Copyright (C) 2006 Fabrice Bellard
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* Copyright (C) 2009 Red Hat, Inc
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "vnc.h"
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static void hextile_enc_cord(uint8_t *ptr, int x, int y, int w, int h)
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{
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ptr[0] = ((x & 0x0F) << 4) | (y & 0x0F);
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ptr[1] = (((w - 1) & 0x0F) << 4) | ((h - 1) & 0x0F);
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}
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#define BPP 8
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#include "vnchextile.h"
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#undef BPP
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#define BPP 16
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#include "vnchextile.h"
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#undef BPP
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#define BPP 32
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#include "vnchextile.h"
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#undef BPP
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#define GENERIC
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#define BPP 8
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#include "vnchextile.h"
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#undef BPP
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#undef GENERIC
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#define GENERIC
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#define BPP 16
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#include "vnchextile.h"
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#undef BPP
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#undef GENERIC
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#define GENERIC
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#define BPP 32
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#include "vnchextile.h"
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#undef BPP
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#undef GENERIC
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void vnc_hextile_send_framebuffer_update(VncState *vs, int x,
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int y, int w, int h)
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{
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int i, j;
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int has_fg, has_bg;
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uint8_t *last_fg, *last_bg;
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VncDisplay *vd = vs->vd;
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last_fg = (uint8_t *) qemu_malloc(vd->server->pf.bytes_per_pixel);
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last_bg = (uint8_t *) qemu_malloc(vd->server->pf.bytes_per_pixel);
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has_fg = has_bg = 0;
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for (j = y; j < (y + h); j += 16) {
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for (i = x; i < (x + w); i += 16) {
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vs->send_hextile_tile(vs, i, j,
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MIN(16, x + w - i), MIN(16, y + h - j),
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last_bg, last_fg, &has_bg, &has_fg);
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}
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}
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free(last_fg);
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free(last_bg);
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}
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void vnc_hextile_set_pixel_conversion(VncState *vs, int generic)
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{
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if (!generic) {
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switch (vs->ds->surface->pf.bits_per_pixel) {
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case 8:
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vs->send_hextile_tile = send_hextile_tile_8;
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break;
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case 16:
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vs->send_hextile_tile = send_hextile_tile_16;
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break;
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case 32:
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vs->send_hextile_tile = send_hextile_tile_32;
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break;
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}
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} else {
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switch (vs->ds->surface->pf.bits_per_pixel) {
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case 8:
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vs->send_hextile_tile = send_hextile_tile_generic_8;
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break;
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case 16:
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vs->send_hextile_tile = send_hextile_tile_generic_16;
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break;
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case 32:
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vs->send_hextile_tile = send_hextile_tile_generic_32;
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break;
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}
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}
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}
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