73e14b623f
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2245 c046a42c-6fe2-441c-8c8c-71466251a162
1171 lines
29 KiB
C
1171 lines
29 KiB
C
/*
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* QEMU VNC display driver
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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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*
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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 "vl.h"
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#include "qemu_socket.h"
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#define VNC_REFRESH_INTERVAL (1000 / 30)
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#include "vnc_keysym.h"
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#include "keymaps.c"
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typedef struct Buffer
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{
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size_t capacity;
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size_t offset;
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char *buffer;
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} Buffer;
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typedef struct VncState VncState;
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typedef int VncReadEvent(VncState *vs, char *data, size_t len);
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typedef void VncWritePixels(VncState *vs, void *data, int size);
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typedef void VncSendHextileTile(VncState *vs,
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int x, int y, int w, int h,
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uint32_t *last_bg,
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uint32_t *last_fg,
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int *has_bg, int *has_fg);
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#define VNC_MAX_WIDTH 2048
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#define VNC_MAX_HEIGHT 2048
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#define VNC_DIRTY_WORDS (VNC_MAX_WIDTH / (16 * 32))
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struct VncState
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{
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QEMUTimer *timer;
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int lsock;
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int csock;
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DisplayState *ds;
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int need_update;
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int width;
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int height;
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uint32_t dirty_row[VNC_MAX_HEIGHT][VNC_DIRTY_WORDS];
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char *old_data;
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int depth; /* internal VNC frame buffer byte per pixel */
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int has_resize;
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int has_hextile;
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Buffer output;
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Buffer input;
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kbd_layout_t *kbd_layout;
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/* current output mode information */
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VncWritePixels *write_pixels;
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VncSendHextileTile *send_hextile_tile;
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int pix_bpp, pix_big_endian;
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int red_shift, red_max, red_shift1;
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int green_shift, green_max, green_shift1;
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int blue_shift, blue_max, blue_shift1;
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VncReadEvent *read_handler;
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size_t read_handler_expect;
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/* input */
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uint8_t modifiers_state[256];
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};
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/* TODO
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1) Get the queue working for IO.
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2) there is some weirdness when using the -S option (the screen is grey
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and not totally invalidated
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3) resolutions > 1024
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*/
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static void vnc_write(VncState *vs, const void *data, size_t len);
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static void vnc_write_u32(VncState *vs, uint32_t value);
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static void vnc_write_s32(VncState *vs, int32_t value);
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static void vnc_write_u16(VncState *vs, uint16_t value);
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static void vnc_write_u8(VncState *vs, uint8_t value);
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static void vnc_flush(VncState *vs);
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static void vnc_update_client(void *opaque);
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static void vnc_client_read(void *opaque);
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static inline void vnc_set_bit(uint32_t *d, int k)
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{
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d[k >> 5] |= 1 << (k & 0x1f);
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}
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static inline void vnc_clear_bit(uint32_t *d, int k)
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{
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d[k >> 5] &= ~(1 << (k & 0x1f));
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}
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static inline void vnc_set_bits(uint32_t *d, int n, int nb_words)
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{
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int j;
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j = 0;
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while (n >= 32) {
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d[j++] = -1;
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n -= 32;
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}
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if (n > 0)
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d[j++] = (1 << n) - 1;
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while (j < nb_words)
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d[j++] = 0;
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}
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static inline int vnc_get_bit(const uint32_t *d, int k)
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{
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return (d[k >> 5] >> (k & 0x1f)) & 1;
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}
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static inline int vnc_and_bits(const uint32_t *d1, const uint32_t *d2,
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int nb_words)
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{
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int i;
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for(i = 0; i < nb_words; i++) {
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if ((d1[i] & d2[i]) != 0)
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return 1;
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}
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return 0;
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}
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static void vnc_dpy_update(DisplayState *ds, int x, int y, int w, int h)
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{
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VncState *vs = ds->opaque;
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int i;
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h += y;
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for (; y < h; y++)
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for (i = 0; i < w; i += 16)
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vnc_set_bit(vs->dirty_row[y], (x + i) / 16);
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}
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static void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h,
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int32_t encoding)
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{
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vnc_write_u16(vs, x);
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vnc_write_u16(vs, y);
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vnc_write_u16(vs, w);
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vnc_write_u16(vs, h);
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vnc_write_s32(vs, encoding);
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}
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static void vnc_dpy_resize(DisplayState *ds, int w, int h)
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{
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int size_changed;
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VncState *vs = ds->opaque;
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ds->data = realloc(ds->data, w * h * vs->depth);
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vs->old_data = realloc(vs->old_data, w * h * vs->depth);
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if (ds->data == NULL || vs->old_data == NULL) {
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fprintf(stderr, "vnc: memory allocation failed\n");
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exit(1);
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}
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ds->depth = vs->depth * 8;
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size_changed = ds->width != w || ds->height != h;
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ds->width = w;
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ds->height = h;
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ds->linesize = w * vs->depth;
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if (vs->csock != -1 && vs->has_resize && size_changed) {
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vnc_write_u8(vs, 0); /* msg id */
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vnc_write_u8(vs, 0);
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vnc_write_u16(vs, 1); /* number of rects */
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vnc_framebuffer_update(vs, 0, 0, ds->width, ds->height, -223);
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vnc_flush(vs);
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vs->width = ds->width;
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vs->height = ds->height;
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}
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}
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/* fastest code */
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static void vnc_write_pixels_copy(VncState *vs, void *pixels, int size)
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{
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vnc_write(vs, pixels, size);
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}
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/* slowest but generic code. */
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static void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v)
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{
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unsigned int r, g, b;
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r = (v >> vs->red_shift1) & vs->red_max;
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g = (v >> vs->green_shift1) & vs->green_max;
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b = (v >> vs->blue_shift1) & vs->blue_max;
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v = (r << vs->red_shift) |
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(g << vs->green_shift) |
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(b << vs->blue_shift);
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switch(vs->pix_bpp) {
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case 1:
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buf[0] = v;
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break;
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case 2:
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if (vs->pix_big_endian) {
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buf[0] = v >> 8;
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buf[1] = v;
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} else {
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buf[1] = v >> 8;
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buf[0] = v;
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}
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break;
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default:
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case 4:
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if (vs->pix_big_endian) {
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buf[0] = v >> 24;
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buf[1] = v >> 16;
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buf[2] = v >> 8;
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buf[3] = v;
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} else {
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buf[3] = v >> 24;
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buf[2] = v >> 16;
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buf[1] = v >> 8;
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buf[0] = v;
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}
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break;
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}
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}
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static void vnc_write_pixels_generic(VncState *vs, void *pixels1, int size)
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{
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uint32_t *pixels = pixels1;
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uint8_t buf[4];
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int n, i;
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n = size >> 2;
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for(i = 0; i < n; i++) {
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vnc_convert_pixel(vs, buf, pixels[i]);
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vnc_write(vs, buf, vs->pix_bpp);
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}
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}
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static void send_framebuffer_update_raw(VncState *vs, int x, int y, int w, int h)
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{
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int i;
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char *row;
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vnc_framebuffer_update(vs, x, y, w, h, 0);
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row = vs->ds->data + y * vs->ds->linesize + x * vs->depth;
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for (i = 0; i < h; i++) {
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vs->write_pixels(vs, row, w * vs->depth);
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row += vs->ds->linesize;
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}
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}
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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 32
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#include "vnchextile.h"
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#undef BPP
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#undef GENERIC
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static void send_framebuffer_update_hextile(VncState *vs, int x, 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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uint32_t last_fg32, last_bg32;
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vnc_framebuffer_update(vs, x, y, w, h, 5);
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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_bg32, &last_fg32, &has_bg, &has_fg);
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}
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}
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}
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static void send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
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{
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if (vs->has_hextile)
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send_framebuffer_update_hextile(vs, x, y, w, h);
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else
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send_framebuffer_update_raw(vs, x, y, w, h);
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}
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static void vnc_copy(DisplayState *ds, int src_x, int src_y, int dst_x, int dst_y, int w, int h)
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{
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int src, dst;
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char *src_row;
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char *dst_row;
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char *old_row;
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int y = 0;
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int pitch = ds->linesize;
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VncState *vs = ds->opaque;
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vnc_update_client(vs);
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if (dst_y > src_y) {
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y = h - 1;
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pitch = -pitch;
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}
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src = (ds->linesize * (src_y + y) + vs->depth * src_x);
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dst = (ds->linesize * (dst_y + y) + vs->depth * dst_x);
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src_row = ds->data + src;
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dst_row = ds->data + dst;
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old_row = vs->old_data + dst;
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for (y = 0; y < h; y++) {
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memmove(old_row, src_row, w * vs->depth);
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memmove(dst_row, src_row, w * vs->depth);
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src_row += pitch;
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dst_row += pitch;
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old_row += pitch;
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}
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vnc_write_u8(vs, 0); /* msg id */
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vnc_write_u8(vs, 0);
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vnc_write_u16(vs, 1); /* number of rects */
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vnc_framebuffer_update(vs, dst_x, dst_y, w, h, 1);
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vnc_write_u16(vs, src_x);
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vnc_write_u16(vs, src_y);
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vnc_flush(vs);
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}
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static int find_dirty_height(VncState *vs, int y, int last_x, int x)
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{
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int h;
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for (h = 1; h < (vs->height - y); h++) {
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int tmp_x;
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if (!vnc_get_bit(vs->dirty_row[y + h], last_x))
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break;
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for (tmp_x = last_x; tmp_x < x; tmp_x++)
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vnc_clear_bit(vs->dirty_row[y + h], tmp_x);
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}
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return h;
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}
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static void vnc_update_client(void *opaque)
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{
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VncState *vs = opaque;
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if (vs->need_update && vs->csock != -1) {
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int y;
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char *row;
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char *old_row;
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uint32_t width_mask[VNC_DIRTY_WORDS];
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int n_rectangles;
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int saved_offset;
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int has_dirty = 0;
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vnc_set_bits(width_mask, (vs->width / 16), VNC_DIRTY_WORDS);
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/* Walk through the dirty map and eliminate tiles that
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really aren't dirty */
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row = vs->ds->data;
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old_row = vs->old_data;
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for (y = 0; y < vs->height; y++) {
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if (vnc_and_bits(vs->dirty_row[y], width_mask, VNC_DIRTY_WORDS)) {
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int x;
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char *ptr, *old_ptr;
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ptr = row;
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old_ptr = old_row;
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for (x = 0; x < vs->ds->width; x += 16) {
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if (memcmp(old_ptr, ptr, 16 * vs->depth) == 0) {
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vnc_clear_bit(vs->dirty_row[y], (x / 16));
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} else {
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has_dirty = 1;
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memcpy(old_ptr, ptr, 16 * vs->depth);
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}
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ptr += 16 * vs->depth;
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old_ptr += 16 * vs->depth;
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}
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}
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row += vs->ds->linesize;
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old_row += vs->ds->linesize;
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}
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if (!has_dirty) {
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qemu_mod_timer(vs->timer, qemu_get_clock(rt_clock) + VNC_REFRESH_INTERVAL);
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return;
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}
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/* Count rectangles */
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n_rectangles = 0;
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vnc_write_u8(vs, 0); /* msg id */
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vnc_write_u8(vs, 0);
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saved_offset = vs->output.offset;
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vnc_write_u16(vs, 0);
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for (y = 0; y < vs->height; y++) {
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int x;
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int last_x = -1;
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for (x = 0; x < vs->width / 16; x++) {
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if (vnc_get_bit(vs->dirty_row[y], x)) {
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if (last_x == -1) {
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last_x = x;
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}
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vnc_clear_bit(vs->dirty_row[y], x);
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} else {
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if (last_x != -1) {
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int h = find_dirty_height(vs, y, last_x, x);
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send_framebuffer_update(vs, last_x * 16, y, (x - last_x) * 16, h);
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n_rectangles++;
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}
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last_x = -1;
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}
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}
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if (last_x != -1) {
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int h = find_dirty_height(vs, y, last_x, x);
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send_framebuffer_update(vs, last_x * 16, y, (x - last_x) * 16, h);
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n_rectangles++;
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}
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}
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vs->output.buffer[saved_offset] = (n_rectangles >> 8) & 0xFF;
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vs->output.buffer[saved_offset + 1] = n_rectangles & 0xFF;
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vnc_flush(vs);
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}
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qemu_mod_timer(vs->timer, qemu_get_clock(rt_clock) + VNC_REFRESH_INTERVAL);
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}
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static void vnc_timer_init(VncState *vs)
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{
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if (vs->timer == NULL) {
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vs->timer = qemu_new_timer(rt_clock, vnc_update_client, vs);
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qemu_mod_timer(vs->timer, qemu_get_clock(rt_clock));
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}
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}
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static void vnc_dpy_refresh(DisplayState *ds)
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{
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VncState *vs = ds->opaque;
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vnc_timer_init(vs);
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vga_hw_update();
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}
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static int vnc_listen_poll(void *opaque)
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{
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VncState *vs = opaque;
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if (vs->csock == -1)
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return 1;
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return 0;
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}
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|
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static void buffer_reserve(Buffer *buffer, size_t len)
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{
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if ((buffer->capacity - buffer->offset) < len) {
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buffer->capacity += (len + 1024);
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buffer->buffer = realloc(buffer->buffer, buffer->capacity);
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if (buffer->buffer == NULL) {
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fprintf(stderr, "vnc: out of memory\n");
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exit(1);
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}
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}
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}
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static int buffer_empty(Buffer *buffer)
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{
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return buffer->offset == 0;
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}
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|
|
static char *buffer_end(Buffer *buffer)
|
|
{
|
|
return buffer->buffer + buffer->offset;
|
|
}
|
|
|
|
static void buffer_reset(Buffer *buffer)
|
|
{
|
|
buffer->offset = 0;
|
|
}
|
|
|
|
static void buffer_append(Buffer *buffer, const void *data, size_t len)
|
|
{
|
|
memcpy(buffer->buffer + buffer->offset, data, len);
|
|
buffer->offset += len;
|
|
}
|
|
|
|
static int vnc_client_io_error(VncState *vs, int ret, int last_errno)
|
|
{
|
|
if (ret == 0 || ret == -1) {
|
|
if (ret == -1 && (last_errno == EINTR || last_errno == EAGAIN))
|
|
return 0;
|
|
|
|
qemu_set_fd_handler2(vs->csock, NULL, NULL, NULL, NULL);
|
|
closesocket(vs->csock);
|
|
vs->csock = -1;
|
|
buffer_reset(&vs->input);
|
|
buffer_reset(&vs->output);
|
|
vs->need_update = 0;
|
|
return 0;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static void vnc_client_error(VncState *vs)
|
|
{
|
|
vnc_client_io_error(vs, -1, EINVAL);
|
|
}
|
|
|
|
static void vnc_client_write(void *opaque)
|
|
{
|
|
long ret;
|
|
VncState *vs = opaque;
|
|
|
|
ret = send(vs->csock, vs->output.buffer, vs->output.offset, 0);
|
|
ret = vnc_client_io_error(vs, ret, socket_error());
|
|
if (!ret)
|
|
return;
|
|
|
|
memmove(vs->output.buffer, vs->output.buffer + ret, (vs->output.offset - ret));
|
|
vs->output.offset -= ret;
|
|
|
|
if (vs->output.offset == 0) {
|
|
qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs);
|
|
}
|
|
}
|
|
|
|
static void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting)
|
|
{
|
|
vs->read_handler = func;
|
|
vs->read_handler_expect = expecting;
|
|
}
|
|
|
|
static void vnc_client_read(void *opaque)
|
|
{
|
|
VncState *vs = opaque;
|
|
long ret;
|
|
|
|
buffer_reserve(&vs->input, 4096);
|
|
|
|
ret = recv(vs->csock, buffer_end(&vs->input), 4096, 0);
|
|
ret = vnc_client_io_error(vs, ret, socket_error());
|
|
if (!ret)
|
|
return;
|
|
|
|
vs->input.offset += ret;
|
|
|
|
while (vs->read_handler && vs->input.offset >= vs->read_handler_expect) {
|
|
size_t len = vs->read_handler_expect;
|
|
int ret;
|
|
|
|
ret = vs->read_handler(vs, vs->input.buffer, len);
|
|
if (vs->csock == -1)
|
|
return;
|
|
|
|
if (!ret) {
|
|
memmove(vs->input.buffer, vs->input.buffer + len, (vs->input.offset - len));
|
|
vs->input.offset -= len;
|
|
} else {
|
|
vs->read_handler_expect = ret;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void vnc_write(VncState *vs, const void *data, size_t len)
|
|
{
|
|
buffer_reserve(&vs->output, len);
|
|
|
|
if (buffer_empty(&vs->output)) {
|
|
qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, vnc_client_write, vs);
|
|
}
|
|
|
|
buffer_append(&vs->output, data, len);
|
|
}
|
|
|
|
static void vnc_write_s32(VncState *vs, int32_t value)
|
|
{
|
|
vnc_write_u32(vs, *(uint32_t *)&value);
|
|
}
|
|
|
|
static void vnc_write_u32(VncState *vs, uint32_t value)
|
|
{
|
|
uint8_t buf[4];
|
|
|
|
buf[0] = (value >> 24) & 0xFF;
|
|
buf[1] = (value >> 16) & 0xFF;
|
|
buf[2] = (value >> 8) & 0xFF;
|
|
buf[3] = value & 0xFF;
|
|
|
|
vnc_write(vs, buf, 4);
|
|
}
|
|
|
|
static void vnc_write_u16(VncState *vs, uint16_t value)
|
|
{
|
|
uint8_t buf[2];
|
|
|
|
buf[0] = (value >> 8) & 0xFF;
|
|
buf[1] = value & 0xFF;
|
|
|
|
vnc_write(vs, buf, 2);
|
|
}
|
|
|
|
static void vnc_write_u8(VncState *vs, uint8_t value)
|
|
{
|
|
vnc_write(vs, (char *)&value, 1);
|
|
}
|
|
|
|
static void vnc_flush(VncState *vs)
|
|
{
|
|
if (vs->output.offset)
|
|
vnc_client_write(vs);
|
|
}
|
|
|
|
static uint8_t read_u8(uint8_t *data, size_t offset)
|
|
{
|
|
return data[offset];
|
|
}
|
|
|
|
static uint16_t read_u16(uint8_t *data, size_t offset)
|
|
{
|
|
return ((data[offset] & 0xFF) << 8) | (data[offset + 1] & 0xFF);
|
|
}
|
|
|
|
static int32_t read_s32(uint8_t *data, size_t offset)
|
|
{
|
|
return (int32_t)((data[offset] << 24) | (data[offset + 1] << 16) |
|
|
(data[offset + 2] << 8) | data[offset + 3]);
|
|
}
|
|
|
|
static uint32_t read_u32(uint8_t *data, size_t offset)
|
|
{
|
|
return ((data[offset] << 24) | (data[offset + 1] << 16) |
|
|
(data[offset + 2] << 8) | data[offset + 3]);
|
|
}
|
|
|
|
static void client_cut_text(VncState *vs, size_t len, char *text)
|
|
{
|
|
}
|
|
|
|
static void pointer_event(VncState *vs, int button_mask, int x, int y)
|
|
{
|
|
int buttons = 0;
|
|
int dz = 0;
|
|
|
|
if (button_mask & 0x01)
|
|
buttons |= MOUSE_EVENT_LBUTTON;
|
|
if (button_mask & 0x02)
|
|
buttons |= MOUSE_EVENT_MBUTTON;
|
|
if (button_mask & 0x04)
|
|
buttons |= MOUSE_EVENT_RBUTTON;
|
|
if (button_mask & 0x08)
|
|
dz = -1;
|
|
if (button_mask & 0x10)
|
|
dz = 1;
|
|
|
|
if (kbd_mouse_is_absolute()) {
|
|
kbd_mouse_event(x * 0x7FFF / vs->ds->width,
|
|
y * 0x7FFF / vs->ds->height,
|
|
dz, buttons);
|
|
} else {
|
|
static int last_x = -1;
|
|
static int last_y = -1;
|
|
|
|
if (last_x != -1)
|
|
kbd_mouse_event(x - last_x, y - last_y, dz, buttons);
|
|
|
|
last_x = x;
|
|
last_y = y;
|
|
}
|
|
}
|
|
|
|
static void reset_keys(VncState *vs)
|
|
{
|
|
int i;
|
|
for(i = 0; i < 256; i++) {
|
|
if (vs->modifiers_state[i]) {
|
|
if (i & 0x80)
|
|
kbd_put_keycode(0xe0);
|
|
kbd_put_keycode(i | 0x80);
|
|
vs->modifiers_state[i] = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void do_key_event(VncState *vs, int down, uint32_t sym)
|
|
{
|
|
int keycode;
|
|
|
|
keycode = keysym2scancode(vs->kbd_layout, sym & 0xFFFF);
|
|
|
|
/* QEMU console switch */
|
|
switch(keycode) {
|
|
case 0x2a: /* Left Shift */
|
|
case 0x36: /* Right Shift */
|
|
case 0x1d: /* Left CTRL */
|
|
case 0x9d: /* Right CTRL */
|
|
case 0x38: /* Left ALT */
|
|
case 0xb8: /* Right ALT */
|
|
if (down)
|
|
vs->modifiers_state[keycode] = 1;
|
|
else
|
|
vs->modifiers_state[keycode] = 0;
|
|
break;
|
|
case 0x02 ... 0x0a: /* '1' to '9' keys */
|
|
if (down && vs->modifiers_state[0x1d] && vs->modifiers_state[0x38]) {
|
|
/* Reset the modifiers sent to the current console */
|
|
reset_keys(vs);
|
|
console_select(keycode - 0x02);
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (is_graphic_console()) {
|
|
if (keycode & 0x80)
|
|
kbd_put_keycode(0xe0);
|
|
if (down)
|
|
kbd_put_keycode(keycode & 0x7f);
|
|
else
|
|
kbd_put_keycode(keycode | 0x80);
|
|
} else {
|
|
/* QEMU console emulation */
|
|
if (down) {
|
|
switch (keycode) {
|
|
case 0x2a: /* Left Shift */
|
|
case 0x36: /* Right Shift */
|
|
case 0x1d: /* Left CTRL */
|
|
case 0x9d: /* Right CTRL */
|
|
case 0x38: /* Left ALT */
|
|
case 0xb8: /* Right ALT */
|
|
break;
|
|
case 0xc8:
|
|
kbd_put_keysym(QEMU_KEY_UP);
|
|
break;
|
|
case 0xd0:
|
|
kbd_put_keysym(QEMU_KEY_DOWN);
|
|
break;
|
|
case 0xcb:
|
|
kbd_put_keysym(QEMU_KEY_LEFT);
|
|
break;
|
|
case 0xcd:
|
|
kbd_put_keysym(QEMU_KEY_RIGHT);
|
|
break;
|
|
case 0xd3:
|
|
kbd_put_keysym(QEMU_KEY_DELETE);
|
|
break;
|
|
case 0xc7:
|
|
kbd_put_keysym(QEMU_KEY_HOME);
|
|
break;
|
|
case 0xcf:
|
|
kbd_put_keysym(QEMU_KEY_END);
|
|
break;
|
|
case 0xc9:
|
|
kbd_put_keysym(QEMU_KEY_PAGEUP);
|
|
break;
|
|
case 0xd1:
|
|
kbd_put_keysym(QEMU_KEY_PAGEDOWN);
|
|
break;
|
|
default:
|
|
kbd_put_keysym(sym);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void key_event(VncState *vs, int down, uint32_t sym)
|
|
{
|
|
if (sym >= 'A' && sym <= 'Z')
|
|
sym = sym - 'A' + 'a';
|
|
do_key_event(vs, down, sym);
|
|
}
|
|
|
|
static void framebuffer_update_request(VncState *vs, int incremental,
|
|
int x_position, int y_position,
|
|
int w, int h)
|
|
{
|
|
int i;
|
|
vs->need_update = 1;
|
|
if (!incremental) {
|
|
char *old_row = vs->old_data + y_position * vs->ds->linesize;
|
|
|
|
for (i = 0; i < h; i++) {
|
|
vnc_set_bits(vs->dirty_row[y_position + i],
|
|
(vs->ds->width / 16), VNC_DIRTY_WORDS);
|
|
memset(old_row, 42, vs->ds->width * vs->depth);
|
|
old_row += vs->ds->linesize;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings)
|
|
{
|
|
int i;
|
|
|
|
vs->has_hextile = 0;
|
|
vs->has_resize = 0;
|
|
vs->ds->dpy_copy = NULL;
|
|
|
|
for (i = n_encodings - 1; i >= 0; i--) {
|
|
switch (encodings[i]) {
|
|
case 0: /* Raw */
|
|
vs->has_hextile = 0;
|
|
break;
|
|
case 1: /* CopyRect */
|
|
vs->ds->dpy_copy = vnc_copy;
|
|
break;
|
|
case 5: /* Hextile */
|
|
vs->has_hextile = 1;
|
|
break;
|
|
case -223: /* DesktopResize */
|
|
vs->has_resize = 1;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int compute_nbits(unsigned int val)
|
|
{
|
|
int n;
|
|
n = 0;
|
|
while (val != 0) {
|
|
n++;
|
|
val >>= 1;
|
|
}
|
|
return n;
|
|
}
|
|
|
|
static void set_pixel_format(VncState *vs,
|
|
int bits_per_pixel, int depth,
|
|
int big_endian_flag, int true_color_flag,
|
|
int red_max, int green_max, int blue_max,
|
|
int red_shift, int green_shift, int blue_shift)
|
|
{
|
|
int host_big_endian_flag;
|
|
|
|
#ifdef WORDS_BIGENDIAN
|
|
host_big_endian_flag = 1;
|
|
#else
|
|
host_big_endian_flag = 0;
|
|
#endif
|
|
if (!true_color_flag) {
|
|
fail:
|
|
vnc_client_error(vs);
|
|
return;
|
|
}
|
|
if (bits_per_pixel == 32 &&
|
|
host_big_endian_flag == big_endian_flag &&
|
|
red_max == 0xff && green_max == 0xff && blue_max == 0xff &&
|
|
red_shift == 16 && green_shift == 8 && blue_shift == 0) {
|
|
vs->depth = 4;
|
|
vs->write_pixels = vnc_write_pixels_copy;
|
|
vs->send_hextile_tile = send_hextile_tile_32;
|
|
} else
|
|
if (bits_per_pixel == 16 &&
|
|
host_big_endian_flag == big_endian_flag &&
|
|
red_max == 31 && green_max == 63 && blue_max == 31 &&
|
|
red_shift == 11 && green_shift == 5 && blue_shift == 0) {
|
|
vs->depth = 2;
|
|
vs->write_pixels = vnc_write_pixels_copy;
|
|
vs->send_hextile_tile = send_hextile_tile_16;
|
|
} else
|
|
if (bits_per_pixel == 8 &&
|
|
red_max == 7 && green_max == 7 && blue_max == 3 &&
|
|
red_shift == 5 && green_shift == 2 && blue_shift == 0) {
|
|
vs->depth = 1;
|
|
vs->write_pixels = vnc_write_pixels_copy;
|
|
vs->send_hextile_tile = send_hextile_tile_8;
|
|
} else
|
|
{
|
|
/* generic and slower case */
|
|
if (bits_per_pixel != 8 &&
|
|
bits_per_pixel != 16 &&
|
|
bits_per_pixel != 32)
|
|
goto fail;
|
|
vs->depth = 4;
|
|
vs->red_shift = red_shift;
|
|
vs->red_max = red_max;
|
|
vs->red_shift1 = 24 - compute_nbits(red_max);
|
|
vs->green_shift = green_shift;
|
|
vs->green_max = green_max;
|
|
vs->green_shift1 = 16 - compute_nbits(green_max);
|
|
vs->blue_shift = blue_shift;
|
|
vs->blue_max = blue_max;
|
|
vs->blue_shift1 = 8 - compute_nbits(blue_max);
|
|
vs->pix_bpp = bits_per_pixel / 8;
|
|
vs->pix_big_endian = big_endian_flag;
|
|
vs->write_pixels = vnc_write_pixels_generic;
|
|
vs->send_hextile_tile = send_hextile_tile_generic;
|
|
}
|
|
|
|
vnc_dpy_resize(vs->ds, vs->ds->width, vs->ds->height);
|
|
memset(vs->dirty_row, 0xFF, sizeof(vs->dirty_row));
|
|
memset(vs->old_data, 42, vs->ds->linesize * vs->ds->height);
|
|
|
|
vga_hw_invalidate();
|
|
vga_hw_update();
|
|
}
|
|
|
|
static int protocol_client_msg(VncState *vs, char *data, size_t len)
|
|
{
|
|
int i;
|
|
uint16_t limit;
|
|
|
|
switch (data[0]) {
|
|
case 0:
|
|
if (len == 1)
|
|
return 20;
|
|
|
|
set_pixel_format(vs, read_u8(data, 4), read_u8(data, 5),
|
|
read_u8(data, 6), read_u8(data, 7),
|
|
read_u16(data, 8), read_u16(data, 10),
|
|
read_u16(data, 12), read_u8(data, 14),
|
|
read_u8(data, 15), read_u8(data, 16));
|
|
break;
|
|
case 2:
|
|
if (len == 1)
|
|
return 4;
|
|
|
|
if (len == 4)
|
|
return 4 + (read_u16(data, 2) * 4);
|
|
|
|
limit = read_u16(data, 2);
|
|
for (i = 0; i < limit; i++) {
|
|
int32_t val = read_s32(data, 4 + (i * 4));
|
|
memcpy(data + 4 + (i * 4), &val, sizeof(val));
|
|
}
|
|
|
|
set_encodings(vs, (int32_t *)(data + 4), limit);
|
|
break;
|
|
case 3:
|
|
if (len == 1)
|
|
return 10;
|
|
|
|
framebuffer_update_request(vs,
|
|
read_u8(data, 1), read_u16(data, 2), read_u16(data, 4),
|
|
read_u16(data, 6), read_u16(data, 8));
|
|
break;
|
|
case 4:
|
|
if (len == 1)
|
|
return 8;
|
|
|
|
key_event(vs, read_u8(data, 1), read_u32(data, 4));
|
|
break;
|
|
case 5:
|
|
if (len == 1)
|
|
return 6;
|
|
|
|
pointer_event(vs, read_u8(data, 1), read_u16(data, 2), read_u16(data, 4));
|
|
break;
|
|
case 6:
|
|
if (len == 1)
|
|
return 8;
|
|
|
|
if (len == 8)
|
|
return 8 + read_u32(data, 4);
|
|
|
|
client_cut_text(vs, read_u32(data, 4), data + 8);
|
|
break;
|
|
default:
|
|
printf("Msg: %d\n", data[0]);
|
|
vnc_client_error(vs);
|
|
break;
|
|
}
|
|
|
|
vnc_read_when(vs, protocol_client_msg, 1);
|
|
return 0;
|
|
}
|
|
|
|
static int protocol_client_init(VncState *vs, char *data, size_t len)
|
|
{
|
|
char pad[3] = { 0, 0, 0 };
|
|
|
|
vs->width = vs->ds->width;
|
|
vs->height = vs->ds->height;
|
|
vnc_write_u16(vs, vs->ds->width);
|
|
vnc_write_u16(vs, vs->ds->height);
|
|
|
|
vnc_write_u8(vs, vs->depth * 8); /* bits-per-pixel */
|
|
vnc_write_u8(vs, vs->depth * 8); /* depth */
|
|
#ifdef WORDS_BIGENDIAN
|
|
vnc_write_u8(vs, 1); /* big-endian-flag */
|
|
#else
|
|
vnc_write_u8(vs, 0); /* big-endian-flag */
|
|
#endif
|
|
vnc_write_u8(vs, 1); /* true-color-flag */
|
|
if (vs->depth == 4) {
|
|
vnc_write_u16(vs, 0xFF); /* red-max */
|
|
vnc_write_u16(vs, 0xFF); /* green-max */
|
|
vnc_write_u16(vs, 0xFF); /* blue-max */
|
|
vnc_write_u8(vs, 16); /* red-shift */
|
|
vnc_write_u8(vs, 8); /* green-shift */
|
|
vnc_write_u8(vs, 0); /* blue-shift */
|
|
vs->send_hextile_tile = send_hextile_tile_32;
|
|
} else if (vs->depth == 2) {
|
|
vnc_write_u16(vs, 31); /* red-max */
|
|
vnc_write_u16(vs, 63); /* green-max */
|
|
vnc_write_u16(vs, 31); /* blue-max */
|
|
vnc_write_u8(vs, 11); /* red-shift */
|
|
vnc_write_u8(vs, 5); /* green-shift */
|
|
vnc_write_u8(vs, 0); /* blue-shift */
|
|
vs->send_hextile_tile = send_hextile_tile_16;
|
|
} else if (vs->depth == 1) {
|
|
/* XXX: change QEMU pixel 8 bit pixel format to match the VNC one ? */
|
|
vnc_write_u16(vs, 7); /* red-max */
|
|
vnc_write_u16(vs, 7); /* green-max */
|
|
vnc_write_u16(vs, 3); /* blue-max */
|
|
vnc_write_u8(vs, 5); /* red-shift */
|
|
vnc_write_u8(vs, 2); /* green-shift */
|
|
vnc_write_u8(vs, 0); /* blue-shift */
|
|
vs->send_hextile_tile = send_hextile_tile_8;
|
|
}
|
|
vs->write_pixels = vnc_write_pixels_copy;
|
|
|
|
vnc_write(vs, pad, 3); /* padding */
|
|
|
|
vnc_write_u32(vs, 4);
|
|
vnc_write(vs, "QEMU", 4);
|
|
vnc_flush(vs);
|
|
|
|
vnc_read_when(vs, protocol_client_msg, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int protocol_version(VncState *vs, char *version, size_t len)
|
|
{
|
|
char local[13];
|
|
int maj, min;
|
|
|
|
memcpy(local, version, 12);
|
|
local[12] = 0;
|
|
|
|
if (sscanf(local, "RFB %03d.%03d\n", &maj, &min) != 2) {
|
|
vnc_client_error(vs);
|
|
return 0;
|
|
}
|
|
|
|
vnc_write_u32(vs, 1); /* None */
|
|
vnc_flush(vs);
|
|
|
|
vnc_read_when(vs, protocol_client_init, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void vnc_listen_read(void *opaque)
|
|
{
|
|
VncState *vs = opaque;
|
|
struct sockaddr_in addr;
|
|
socklen_t addrlen = sizeof(addr);
|
|
|
|
vs->csock = accept(vs->lsock, (struct sockaddr *)&addr, &addrlen);
|
|
if (vs->csock != -1) {
|
|
socket_set_nonblock(vs->csock);
|
|
qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, opaque);
|
|
vnc_write(vs, "RFB 003.003\n", 12);
|
|
vnc_flush(vs);
|
|
vnc_read_when(vs, protocol_version, 12);
|
|
memset(vs->old_data, 0, vs->ds->linesize * vs->ds->height);
|
|
memset(vs->dirty_row, 0xFF, sizeof(vs->dirty_row));
|
|
vs->has_resize = 0;
|
|
vs->has_hextile = 0;
|
|
vs->ds->dpy_copy = NULL;
|
|
}
|
|
}
|
|
|
|
void vnc_display_init(DisplayState *ds, int display)
|
|
{
|
|
struct sockaddr_in addr;
|
|
int reuse_addr, ret;
|
|
VncState *vs;
|
|
|
|
vs = qemu_mallocz(sizeof(VncState));
|
|
if (!vs)
|
|
exit(1);
|
|
|
|
ds->opaque = vs;
|
|
|
|
vs->lsock = -1;
|
|
vs->csock = -1;
|
|
vs->depth = 4;
|
|
|
|
vs->ds = ds;
|
|
|
|
if (!keyboard_layout)
|
|
keyboard_layout = "en-us";
|
|
|
|
vs->kbd_layout = init_keyboard_layout(keyboard_layout);
|
|
if (!vs->kbd_layout)
|
|
exit(1);
|
|
|
|
vs->lsock = socket(PF_INET, SOCK_STREAM, 0);
|
|
if (vs->lsock == -1) {
|
|
fprintf(stderr, "Could not create socket\n");
|
|
exit(1);
|
|
}
|
|
|
|
addr.sin_family = AF_INET;
|
|
addr.sin_port = htons(5900 + display);
|
|
memset(&addr.sin_addr, 0, sizeof(addr.sin_addr));
|
|
|
|
reuse_addr = 1;
|
|
ret = setsockopt(vs->lsock, SOL_SOCKET, SO_REUSEADDR,
|
|
(const char *)&reuse_addr, sizeof(reuse_addr));
|
|
if (ret == -1) {
|
|
fprintf(stderr, "setsockopt() failed\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (bind(vs->lsock, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
|
|
fprintf(stderr, "bind() failed\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (listen(vs->lsock, 1) == -1) {
|
|
fprintf(stderr, "listen() failed\n");
|
|
exit(1);
|
|
}
|
|
|
|
ret = qemu_set_fd_handler2(vs->lsock, vnc_listen_poll, vnc_listen_read, NULL, vs);
|
|
if (ret == -1) {
|
|
exit(1);
|
|
}
|
|
|
|
vs->ds->data = NULL;
|
|
vs->ds->dpy_update = vnc_dpy_update;
|
|
vs->ds->dpy_resize = vnc_dpy_resize;
|
|
vs->ds->dpy_refresh = vnc_dpy_refresh;
|
|
|
|
memset(vs->dirty_row, 0xFF, sizeof(vs->dirty_row));
|
|
|
|
vnc_dpy_resize(vs->ds, 640, 400);
|
|
}
|