/* * 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 *) 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->hextile.send_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); 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; } } }