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/*
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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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int has_pointer_type_change;
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int absolute;
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int last_x;
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int last_y;
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const char *display; |
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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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static VncState *vnc_state; /* needed for info vnc */ |
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void do_info_vnc(void) |
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{ |
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if (vnc_state == NULL) |
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term_printf("VNC server disabled\n");
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else {
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term_printf("VNC server active on: ");
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term_print_filename(vnc_state->display); |
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term_printf("\n");
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if (vnc_state->csock == -1) |
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term_printf("No client connected\n");
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else
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term_printf("Client connected\n");
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} |
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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); |
357 |
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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; |
368 |
old_row = vs->old_data + dst; |
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for (y = 0; y < h; y++) { |
371 |
memmove(old_row, src_row, w * vs->depth); |
372 |
memmove(dst_row, src_row, w * vs->depth); |
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src_row += pitch; |
374 |
dst_row += pitch; |
375 |
old_row += pitch; |
376 |
} |
377 |
|
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vnc_write_u8(vs, 0); /* msg id */ |
379 |
vnc_write_u8(vs, 0);
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vnc_write_u16(vs, 1); /* number of rects */ |
381 |
vnc_framebuffer_update(vs, dst_x, dst_y, w, h, 1);
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vnc_write_u16(vs, src_x); |
383 |
vnc_write_u16(vs, src_y); |
384 |
vnc_flush(vs); |
385 |
} |
386 |
|
387 |
static int find_dirty_height(VncState *vs, int y, int last_x, int x) |
388 |
{ |
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int h;
|
390 |
|
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for (h = 1; h < (vs->height - y); h++) { |
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int tmp_x;
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393 |
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); |
397 |
} |
398 |
|
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return h;
|
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} |
401 |
|
402 |
static void vnc_update_client(void *opaque) |
403 |
{ |
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VncState *vs = opaque; |
405 |
|
406 |
if (vs->need_update && vs->csock != -1) { |
407 |
int y;
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char *row;
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409 |
char *old_row;
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410 |
uint32_t width_mask[VNC_DIRTY_WORDS]; |
411 |
int n_rectangles;
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412 |
int saved_offset;
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int has_dirty = 0; |
414 |
|
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vnc_set_bits(width_mask, (vs->width / 16), VNC_DIRTY_WORDS);
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416 |
|
417 |
/* Walk through the dirty map and eliminate tiles that
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418 |
really aren't dirty */
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419 |
row = vs->ds->data; |
420 |
old_row = vs->old_data; |
421 |
|
422 |
for (y = 0; y < vs->height; y++) { |
423 |
if (vnc_and_bits(vs->dirty_row[y], width_mask, VNC_DIRTY_WORDS)) {
|
424 |
int x;
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425 |
char *ptr, *old_ptr;
|
426 |
|
427 |
ptr = row; |
428 |
old_ptr = old_row; |
429 |
|
430 |
for (x = 0; x < vs->ds->width; x += 16) { |
431 |
if (memcmp(old_ptr, ptr, 16 * vs->depth) == 0) { |
432 |
vnc_clear_bit(vs->dirty_row[y], (x / 16));
|
433 |
} else {
|
434 |
has_dirty = 1;
|
435 |
memcpy(old_ptr, ptr, 16 * vs->depth);
|
436 |
} |
437 |
|
438 |
ptr += 16 * vs->depth;
|
439 |
old_ptr += 16 * vs->depth;
|
440 |
} |
441 |
} |
442 |
|
443 |
row += vs->ds->linesize; |
444 |
old_row += vs->ds->linesize; |
445 |
} |
446 |
|
447 |
if (!has_dirty) {
|
448 |
qemu_mod_timer(vs->timer, qemu_get_clock(rt_clock) + VNC_REFRESH_INTERVAL); |
449 |
return;
|
450 |
} |
451 |
|
452 |
/* Count rectangles */
|
453 |
n_rectangles = 0;
|
454 |
vnc_write_u8(vs, 0); /* msg id */ |
455 |
vnc_write_u8(vs, 0);
|
456 |
saved_offset = vs->output.offset; |
457 |
vnc_write_u16(vs, 0);
|
458 |
|
459 |
for (y = 0; y < vs->height; y++) { |
460 |
int x;
|
461 |
int last_x = -1; |
462 |
for (x = 0; x < vs->width / 16; x++) { |
463 |
if (vnc_get_bit(vs->dirty_row[y], x)) {
|
464 |
if (last_x == -1) { |
465 |
last_x = x; |
466 |
} |
467 |
vnc_clear_bit(vs->dirty_row[y], x); |
468 |
} else {
|
469 |
if (last_x != -1) { |
470 |
int h = find_dirty_height(vs, y, last_x, x);
|
471 |
send_framebuffer_update(vs, last_x * 16, y, (x - last_x) * 16, h); |
472 |
n_rectangles++; |
473 |
} |
474 |
last_x = -1;
|
475 |
} |
476 |
} |
477 |
if (last_x != -1) { |
478 |
int h = find_dirty_height(vs, y, last_x, x);
|
479 |
send_framebuffer_update(vs, last_x * 16, y, (x - last_x) * 16, h); |
480 |
n_rectangles++; |
481 |
} |
482 |
} |
483 |
vs->output.buffer[saved_offset] = (n_rectangles >> 8) & 0xFF; |
484 |
vs->output.buffer[saved_offset + 1] = n_rectangles & 0xFF; |
485 |
vnc_flush(vs); |
486 |
|
487 |
} |
488 |
qemu_mod_timer(vs->timer, qemu_get_clock(rt_clock) + VNC_REFRESH_INTERVAL); |
489 |
} |
490 |
|
491 |
static void vnc_timer_init(VncState *vs) |
492 |
{ |
493 |
if (vs->timer == NULL) { |
494 |
vs->timer = qemu_new_timer(rt_clock, vnc_update_client, vs); |
495 |
qemu_mod_timer(vs->timer, qemu_get_clock(rt_clock)); |
496 |
} |
497 |
} |
498 |
|
499 |
static void vnc_dpy_refresh(DisplayState *ds) |
500 |
{ |
501 |
VncState *vs = ds->opaque; |
502 |
vnc_timer_init(vs); |
503 |
vga_hw_update(); |
504 |
} |
505 |
|
506 |
static int vnc_listen_poll(void *opaque) |
507 |
{ |
508 |
VncState *vs = opaque; |
509 |
if (vs->csock == -1) |
510 |
return 1; |
511 |
return 0; |
512 |
} |
513 |
|
514 |
static void buffer_reserve(Buffer *buffer, size_t len) |
515 |
{ |
516 |
if ((buffer->capacity - buffer->offset) < len) {
|
517 |
buffer->capacity += (len + 1024);
|
518 |
buffer->buffer = realloc(buffer->buffer, buffer->capacity); |
519 |
if (buffer->buffer == NULL) { |
520 |
fprintf(stderr, "vnc: out of memory\n");
|
521 |
exit(1);
|
522 |
} |
523 |
} |
524 |
} |
525 |
|
526 |
static int buffer_empty(Buffer *buffer) |
527 |
{ |
528 |
return buffer->offset == 0; |
529 |
} |
530 |
|
531 |
static char *buffer_end(Buffer *buffer) |
532 |
{ |
533 |
return buffer->buffer + buffer->offset;
|
534 |
} |
535 |
|
536 |
static void buffer_reset(Buffer *buffer) |
537 |
{ |
538 |
buffer->offset = 0;
|
539 |
} |
540 |
|
541 |
static void buffer_append(Buffer *buffer, const void *data, size_t len) |
542 |
{ |
543 |
memcpy(buffer->buffer + buffer->offset, data, len); |
544 |
buffer->offset += len; |
545 |
} |
546 |
|
547 |
static int vnc_client_io_error(VncState *vs, int ret, int last_errno) |
548 |
{ |
549 |
if (ret == 0 || ret == -1) { |
550 |
if (ret == -1 && (last_errno == EINTR || last_errno == EAGAIN)) |
551 |
return 0; |
552 |
|
553 |
qemu_set_fd_handler2(vs->csock, NULL, NULL, NULL, NULL); |
554 |
closesocket(vs->csock); |
555 |
vs->csock = -1;
|
556 |
buffer_reset(&vs->input); |
557 |
buffer_reset(&vs->output); |
558 |
vs->need_update = 0;
|
559 |
return 0; |
560 |
} |
561 |
return ret;
|
562 |
} |
563 |
|
564 |
static void vnc_client_error(VncState *vs) |
565 |
{ |
566 |
vnc_client_io_error(vs, -1, EINVAL);
|
567 |
} |
568 |
|
569 |
static void vnc_client_write(void *opaque) |
570 |
{ |
571 |
long ret;
|
572 |
VncState *vs = opaque; |
573 |
|
574 |
ret = send(vs->csock, vs->output.buffer, vs->output.offset, 0);
|
575 |
ret = vnc_client_io_error(vs, ret, socket_error()); |
576 |
if (!ret)
|
577 |
return;
|
578 |
|
579 |
memmove(vs->output.buffer, vs->output.buffer + ret, (vs->output.offset - ret)); |
580 |
vs->output.offset -= ret; |
581 |
|
582 |
if (vs->output.offset == 0) { |
583 |
qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs); |
584 |
} |
585 |
} |
586 |
|
587 |
static void vnc_read_when(VncState *vs, VncReadEvent *func, size_t expecting) |
588 |
{ |
589 |
vs->read_handler = func; |
590 |
vs->read_handler_expect = expecting; |
591 |
} |
592 |
|
593 |
static void vnc_client_read(void *opaque) |
594 |
{ |
595 |
VncState *vs = opaque; |
596 |
long ret;
|
597 |
|
598 |
buffer_reserve(&vs->input, 4096);
|
599 |
|
600 |
ret = recv(vs->csock, buffer_end(&vs->input), 4096, 0); |
601 |
ret = vnc_client_io_error(vs, ret, socket_error()); |
602 |
if (!ret)
|
603 |
return;
|
604 |
|
605 |
vs->input.offset += ret; |
606 |
|
607 |
while (vs->read_handler && vs->input.offset >= vs->read_handler_expect) {
|
608 |
size_t len = vs->read_handler_expect; |
609 |
int ret;
|
610 |
|
611 |
ret = vs->read_handler(vs, vs->input.buffer, len); |
612 |
if (vs->csock == -1) |
613 |
return;
|
614 |
|
615 |
if (!ret) {
|
616 |
memmove(vs->input.buffer, vs->input.buffer + len, (vs->input.offset - len)); |
617 |
vs->input.offset -= len; |
618 |
} else {
|
619 |
vs->read_handler_expect = ret; |
620 |
} |
621 |
} |
622 |
} |
623 |
|
624 |
static void vnc_write(VncState *vs, const void *data, size_t len) |
625 |
{ |
626 |
buffer_reserve(&vs->output, len); |
627 |
|
628 |
if (buffer_empty(&vs->output)) {
|
629 |
qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, vnc_client_write, vs);
|
630 |
} |
631 |
|
632 |
buffer_append(&vs->output, data, len); |
633 |
} |
634 |
|
635 |
static void vnc_write_s32(VncState *vs, int32_t value) |
636 |
{ |
637 |
vnc_write_u32(vs, *(uint32_t *)&value); |
638 |
} |
639 |
|
640 |
static void vnc_write_u32(VncState *vs, uint32_t value) |
641 |
{ |
642 |
uint8_t buf[4];
|
643 |
|
644 |
buf[0] = (value >> 24) & 0xFF; |
645 |
buf[1] = (value >> 16) & 0xFF; |
646 |
buf[2] = (value >> 8) & 0xFF; |
647 |
buf[3] = value & 0xFF; |
648 |
|
649 |
vnc_write(vs, buf, 4);
|
650 |
} |
651 |
|
652 |
static void vnc_write_u16(VncState *vs, uint16_t value) |
653 |
{ |
654 |
uint8_t buf[2];
|
655 |
|
656 |
buf[0] = (value >> 8) & 0xFF; |
657 |
buf[1] = value & 0xFF; |
658 |
|
659 |
vnc_write(vs, buf, 2);
|
660 |
} |
661 |
|
662 |
static void vnc_write_u8(VncState *vs, uint8_t value) |
663 |
{ |
664 |
vnc_write(vs, (char *)&value, 1); |
665 |
} |
666 |
|
667 |
static void vnc_flush(VncState *vs) |
668 |
{ |
669 |
if (vs->output.offset)
|
670 |
vnc_client_write(vs); |
671 |
} |
672 |
|
673 |
static uint8_t read_u8(uint8_t *data, size_t offset)
|
674 |
{ |
675 |
return data[offset];
|
676 |
} |
677 |
|
678 |
static uint16_t read_u16(uint8_t *data, size_t offset)
|
679 |
{ |
680 |
return ((data[offset] & 0xFF) << 8) | (data[offset + 1] & 0xFF); |
681 |
} |
682 |
|
683 |
static int32_t read_s32(uint8_t *data, size_t offset)
|
684 |
{ |
685 |
return (int32_t)((data[offset] << 24) | (data[offset + 1] << 16) | |
686 |
(data[offset + 2] << 8) | data[offset + 3]); |
687 |
} |
688 |
|
689 |
static uint32_t read_u32(uint8_t *data, size_t offset)
|
690 |
{ |
691 |
return ((data[offset] << 24) | (data[offset + 1] << 16) | |
692 |
(data[offset + 2] << 8) | data[offset + 3]); |
693 |
} |
694 |
|
695 |
static void client_cut_text(VncState *vs, size_t len, char *text) |
696 |
{ |
697 |
} |
698 |
|
699 |
static void check_pointer_type_change(VncState *vs, int absolute) |
700 |
{ |
701 |
if (vs->has_pointer_type_change && vs->absolute != absolute) {
|
702 |
vnc_write_u8(vs, 0);
|
703 |
vnc_write_u8(vs, 0);
|
704 |
vnc_write_u16(vs, 1);
|
705 |
vnc_framebuffer_update(vs, absolute, 0,
|
706 |
vs->ds->width, vs->ds->height, -257);
|
707 |
vnc_flush(vs); |
708 |
} |
709 |
vs->absolute = absolute; |
710 |
} |
711 |
|
712 |
static void pointer_event(VncState *vs, int button_mask, int x, int y) |
713 |
{ |
714 |
int buttons = 0; |
715 |
int dz = 0; |
716 |
|
717 |
if (button_mask & 0x01) |
718 |
buttons |= MOUSE_EVENT_LBUTTON; |
719 |
if (button_mask & 0x02) |
720 |
buttons |= MOUSE_EVENT_MBUTTON; |
721 |
if (button_mask & 0x04) |
722 |
buttons |= MOUSE_EVENT_RBUTTON; |
723 |
if (button_mask & 0x08) |
724 |
dz = -1;
|
725 |
if (button_mask & 0x10) |
726 |
dz = 1;
|
727 |
|
728 |
if (vs->absolute) {
|
729 |
kbd_mouse_event(x * 0x7FFF / vs->ds->width,
|
730 |
y * 0x7FFF / vs->ds->height,
|
731 |
dz, buttons); |
732 |
} else if (vs->has_pointer_type_change) { |
733 |
x -= 0x7FFF;
|
734 |
y -= 0x7FFF;
|
735 |
|
736 |
kbd_mouse_event(x, y, dz, buttons); |
737 |
} else {
|
738 |
if (vs->last_x != -1) |
739 |
kbd_mouse_event(x - vs->last_x, |
740 |
y - vs->last_y, |
741 |
dz, buttons); |
742 |
vs->last_x = x; |
743 |
vs->last_y = y; |
744 |
} |
745 |
|
746 |
check_pointer_type_change(vs, kbd_mouse_is_absolute()); |
747 |
} |
748 |
|
749 |
static void reset_keys(VncState *vs) |
750 |
{ |
751 |
int i;
|
752 |
for(i = 0; i < 256; i++) { |
753 |
if (vs->modifiers_state[i]) {
|
754 |
if (i & 0x80) |
755 |
kbd_put_keycode(0xe0);
|
756 |
kbd_put_keycode(i | 0x80);
|
757 |
vs->modifiers_state[i] = 0;
|
758 |
} |
759 |
} |
760 |
} |
761 |
|
762 |
static void do_key_event(VncState *vs, int down, uint32_t sym) |
763 |
{ |
764 |
int keycode;
|
765 |
|
766 |
keycode = keysym2scancode(vs->kbd_layout, sym & 0xFFFF);
|
767 |
|
768 |
/* QEMU console switch */
|
769 |
switch(keycode) {
|
770 |
case 0x2a: /* Left Shift */ |
771 |
case 0x36: /* Right Shift */ |
772 |
case 0x1d: /* Left CTRL */ |
773 |
case 0x9d: /* Right CTRL */ |
774 |
case 0x38: /* Left ALT */ |
775 |
case 0xb8: /* Right ALT */ |
776 |
if (down)
|
777 |
vs->modifiers_state[keycode] = 1;
|
778 |
else
|
779 |
vs->modifiers_state[keycode] = 0;
|
780 |
break;
|
781 |
case 0x02 ... 0x0a: /* '1' to '9' keys */ |
782 |
if (down && vs->modifiers_state[0x1d] && vs->modifiers_state[0x38]) { |
783 |
/* Reset the modifiers sent to the current console */
|
784 |
reset_keys(vs); |
785 |
console_select(keycode - 0x02);
|
786 |
return;
|
787 |
} |
788 |
break;
|
789 |
} |
790 |
|
791 |
if (is_graphic_console()) {
|
792 |
if (keycode & 0x80) |
793 |
kbd_put_keycode(0xe0);
|
794 |
if (down)
|
795 |
kbd_put_keycode(keycode & 0x7f);
|
796 |
else
|
797 |
kbd_put_keycode(keycode | 0x80);
|
798 |
} else {
|
799 |
/* QEMU console emulation */
|
800 |
if (down) {
|
801 |
switch (keycode) {
|
802 |
case 0x2a: /* Left Shift */ |
803 |
case 0x36: /* Right Shift */ |
804 |
case 0x1d: /* Left CTRL */ |
805 |
case 0x9d: /* Right CTRL */ |
806 |
case 0x38: /* Left ALT */ |
807 |
case 0xb8: /* Right ALT */ |
808 |
break;
|
809 |
case 0xc8: |
810 |
kbd_put_keysym(QEMU_KEY_UP); |
811 |
break;
|
812 |
case 0xd0: |
813 |
kbd_put_keysym(QEMU_KEY_DOWN); |
814 |
break;
|
815 |
case 0xcb: |
816 |
kbd_put_keysym(QEMU_KEY_LEFT); |
817 |
break;
|
818 |
case 0xcd: |
819 |
kbd_put_keysym(QEMU_KEY_RIGHT); |
820 |
break;
|
821 |
case 0xd3: |
822 |
kbd_put_keysym(QEMU_KEY_DELETE); |
823 |
break;
|
824 |
case 0xc7: |
825 |
kbd_put_keysym(QEMU_KEY_HOME); |
826 |
break;
|
827 |
case 0xcf: |
828 |
kbd_put_keysym(QEMU_KEY_END); |
829 |
break;
|
830 |
case 0xc9: |
831 |
kbd_put_keysym(QEMU_KEY_PAGEUP); |
832 |
break;
|
833 |
case 0xd1: |
834 |
kbd_put_keysym(QEMU_KEY_PAGEDOWN); |
835 |
break;
|
836 |
default:
|
837 |
kbd_put_keysym(sym); |
838 |
break;
|
839 |
} |
840 |
} |
841 |
} |
842 |
} |
843 |
|
844 |
static void key_event(VncState *vs, int down, uint32_t sym) |
845 |
{ |
846 |
if (sym >= 'A' && sym <= 'Z') |
847 |
sym = sym - 'A' + 'a'; |
848 |
do_key_event(vs, down, sym); |
849 |
} |
850 |
|
851 |
static void framebuffer_update_request(VncState *vs, int incremental, |
852 |
int x_position, int y_position, |
853 |
int w, int h) |
854 |
{ |
855 |
int i;
|
856 |
vs->need_update = 1;
|
857 |
if (!incremental) {
|
858 |
char *old_row = vs->old_data + y_position * vs->ds->linesize;
|
859 |
|
860 |
for (i = 0; i < h; i++) { |
861 |
vnc_set_bits(vs->dirty_row[y_position + i], |
862 |
(vs->ds->width / 16), VNC_DIRTY_WORDS);
|
863 |
memset(old_row, 42, vs->ds->width * vs->depth);
|
864 |
old_row += vs->ds->linesize; |
865 |
} |
866 |
} |
867 |
} |
868 |
|
869 |
static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings) |
870 |
{ |
871 |
int i;
|
872 |
|
873 |
vs->has_hextile = 0;
|
874 |
vs->has_resize = 0;
|
875 |
vs->has_pointer_type_change = 0;
|
876 |
vs->absolute = -1;
|
877 |
vs->ds->dpy_copy = NULL;
|
878 |
|
879 |
for (i = n_encodings - 1; i >= 0; i--) { |
880 |
switch (encodings[i]) {
|
881 |
case 0: /* Raw */ |
882 |
vs->has_hextile = 0;
|
883 |
break;
|
884 |
case 1: /* CopyRect */ |
885 |
vs->ds->dpy_copy = vnc_copy; |
886 |
break;
|
887 |
case 5: /* Hextile */ |
888 |
vs->has_hextile = 1;
|
889 |
break;
|
890 |
case -223: /* DesktopResize */ |
891 |
vs->has_resize = 1;
|
892 |
break;
|
893 |
case -257: |
894 |
vs->has_pointer_type_change = 1;
|
895 |
break;
|
896 |
default:
|
897 |
break;
|
898 |
} |
899 |
} |
900 |
|
901 |
check_pointer_type_change(vs, kbd_mouse_is_absolute()); |
902 |
} |
903 |
|
904 |
static int compute_nbits(unsigned int val) |
905 |
{ |
906 |
int n;
|
907 |
n = 0;
|
908 |
while (val != 0) { |
909 |
n++; |
910 |
val >>= 1;
|
911 |
} |
912 |
return n;
|
913 |
} |
914 |
|
915 |
static void set_pixel_format(VncState *vs, |
916 |
int bits_per_pixel, int depth, |
917 |
int big_endian_flag, int true_color_flag, |
918 |
int red_max, int green_max, int blue_max, |
919 |
int red_shift, int green_shift, int blue_shift) |
920 |
{ |
921 |
int host_big_endian_flag;
|
922 |
|
923 |
#ifdef WORDS_BIGENDIAN
|
924 |
host_big_endian_flag = 1;
|
925 |
#else
|
926 |
host_big_endian_flag = 0;
|
927 |
#endif
|
928 |
if (!true_color_flag) {
|
929 |
fail:
|
930 |
vnc_client_error(vs); |
931 |
return;
|
932 |
} |
933 |
if (bits_per_pixel == 32 && |
934 |
host_big_endian_flag == big_endian_flag && |
935 |
red_max == 0xff && green_max == 0xff && blue_max == 0xff && |
936 |
red_shift == 16 && green_shift == 8 && blue_shift == 0) { |
937 |
vs->depth = 4;
|
938 |
vs->write_pixels = vnc_write_pixels_copy; |
939 |
vs->send_hextile_tile = send_hextile_tile_32; |
940 |
} else
|
941 |
if (bits_per_pixel == 16 && |
942 |
host_big_endian_flag == big_endian_flag && |
943 |
red_max == 31 && green_max == 63 && blue_max == 31 && |
944 |
red_shift == 11 && green_shift == 5 && blue_shift == 0) { |
945 |
vs->depth = 2;
|
946 |
vs->write_pixels = vnc_write_pixels_copy; |
947 |
vs->send_hextile_tile = send_hextile_tile_16; |
948 |
} else
|
949 |
if (bits_per_pixel == 8 && |
950 |
red_max == 7 && green_max == 7 && blue_max == 3 && |
951 |
red_shift == 5 && green_shift == 2 && blue_shift == 0) { |
952 |
vs->depth = 1;
|
953 |
vs->write_pixels = vnc_write_pixels_copy; |
954 |
vs->send_hextile_tile = send_hextile_tile_8; |
955 |
} else
|
956 |
{ |
957 |
/* generic and slower case */
|
958 |
if (bits_per_pixel != 8 && |
959 |
bits_per_pixel != 16 &&
|
960 |
bits_per_pixel != 32)
|
961 |
goto fail;
|
962 |
vs->depth = 4;
|
963 |
vs->red_shift = red_shift; |
964 |
vs->red_max = red_max; |
965 |
vs->red_shift1 = 24 - compute_nbits(red_max);
|
966 |
vs->green_shift = green_shift; |
967 |
vs->green_max = green_max; |
968 |
vs->green_shift1 = 16 - compute_nbits(green_max);
|
969 |
vs->blue_shift = blue_shift; |
970 |
vs->blue_max = blue_max; |
971 |
vs->blue_shift1 = 8 - compute_nbits(blue_max);
|
972 |
vs->pix_bpp = bits_per_pixel / 8;
|
973 |
vs->pix_big_endian = big_endian_flag; |
974 |
vs->write_pixels = vnc_write_pixels_generic; |
975 |
vs->send_hextile_tile = send_hextile_tile_generic; |
976 |
} |
977 |
|
978 |
vnc_dpy_resize(vs->ds, vs->ds->width, vs->ds->height); |
979 |
memset(vs->dirty_row, 0xFF, sizeof(vs->dirty_row)); |
980 |
memset(vs->old_data, 42, vs->ds->linesize * vs->ds->height);
|
981 |
|
982 |
vga_hw_invalidate(); |
983 |
vga_hw_update(); |
984 |
} |
985 |
|
986 |
static int protocol_client_msg(VncState *vs, char *data, size_t len) |
987 |
{ |
988 |
int i;
|
989 |
uint16_t limit; |
990 |
|
991 |
switch (data[0]) { |
992 |
case 0: |
993 |
if (len == 1) |
994 |
return 20; |
995 |
|
996 |
set_pixel_format(vs, read_u8(data, 4), read_u8(data, 5), |
997 |
read_u8(data, 6), read_u8(data, 7), |
998 |
read_u16(data, 8), read_u16(data, 10), |
999 |
read_u16(data, 12), read_u8(data, 14), |
1000 |
read_u8(data, 15), read_u8(data, 16)); |
1001 |
break;
|
1002 |
case 2: |
1003 |
if (len == 1) |
1004 |
return 4; |
1005 |
|
1006 |
if (len == 4) |
1007 |
return 4 + (read_u16(data, 2) * 4); |
1008 |
|
1009 |
limit = read_u16(data, 2);
|
1010 |
for (i = 0; i < limit; i++) { |
1011 |
int32_t val = read_s32(data, 4 + (i * 4)); |
1012 |
memcpy(data + 4 + (i * 4), &val, sizeof(val)); |
1013 |
} |
1014 |
|
1015 |
set_encodings(vs, (int32_t *)(data + 4), limit);
|
1016 |
break;
|
1017 |
case 3: |
1018 |
if (len == 1) |
1019 |
return 10; |
1020 |
|
1021 |
framebuffer_update_request(vs, |
1022 |
read_u8(data, 1), read_u16(data, 2), read_u16(data, 4), |
1023 |
read_u16(data, 6), read_u16(data, 8)); |
1024 |
break;
|
1025 |
case 4: |
1026 |
if (len == 1) |
1027 |
return 8; |
1028 |
|
1029 |
key_event(vs, read_u8(data, 1), read_u32(data, 4)); |
1030 |
break;
|
1031 |
case 5: |
1032 |
if (len == 1) |
1033 |
return 6; |
1034 |
|
1035 |
pointer_event(vs, read_u8(data, 1), read_u16(data, 2), read_u16(data, 4)); |
1036 |
break;
|
1037 |
case 6: |
1038 |
if (len == 1) |
1039 |
return 8; |
1040 |
|
1041 |
if (len == 8) |
1042 |
return 8 + read_u32(data, 4); |
1043 |
|
1044 |
client_cut_text(vs, read_u32(data, 4), data + 8); |
1045 |
break;
|
1046 |
default:
|
1047 |
printf("Msg: %d\n", data[0]); |
1048 |
vnc_client_error(vs); |
1049 |
break;
|
1050 |
} |
1051 |
|
1052 |
vnc_read_when(vs, protocol_client_msg, 1);
|
1053 |
return 0; |
1054 |
} |
1055 |
|
1056 |
static int protocol_client_init(VncState *vs, char *data, size_t len) |
1057 |
{ |
1058 |
char pad[3] = { 0, 0, 0 }; |
1059 |
|
1060 |
vs->width = vs->ds->width; |
1061 |
vs->height = vs->ds->height; |
1062 |
vnc_write_u16(vs, vs->ds->width); |
1063 |
vnc_write_u16(vs, vs->ds->height); |
1064 |
|
1065 |
vnc_write_u8(vs, vs->depth * 8); /* bits-per-pixel */ |
1066 |
vnc_write_u8(vs, vs->depth * 8); /* depth */ |
1067 |
#ifdef WORDS_BIGENDIAN
|
1068 |
vnc_write_u8(vs, 1); /* big-endian-flag */ |
1069 |
#else
|
1070 |
vnc_write_u8(vs, 0); /* big-endian-flag */ |
1071 |
#endif
|
1072 |
vnc_write_u8(vs, 1); /* true-color-flag */ |
1073 |
if (vs->depth == 4) { |
1074 |
vnc_write_u16(vs, 0xFF); /* red-max */ |
1075 |
vnc_write_u16(vs, 0xFF); /* green-max */ |
1076 |
vnc_write_u16(vs, 0xFF); /* blue-max */ |
1077 |
vnc_write_u8(vs, 16); /* red-shift */ |
1078 |
vnc_write_u8(vs, 8); /* green-shift */ |
1079 |
vnc_write_u8(vs, 0); /* blue-shift */ |
1080 |
vs->send_hextile_tile = send_hextile_tile_32; |
1081 |
} else if (vs->depth == 2) { |
1082 |
vnc_write_u16(vs, 31); /* red-max */ |
1083 |
vnc_write_u16(vs, 63); /* green-max */ |
1084 |
vnc_write_u16(vs, 31); /* blue-max */ |
1085 |
vnc_write_u8(vs, 11); /* red-shift */ |
1086 |
vnc_write_u8(vs, 5); /* green-shift */ |
1087 |
vnc_write_u8(vs, 0); /* blue-shift */ |
1088 |
vs->send_hextile_tile = send_hextile_tile_16; |
1089 |
} else if (vs->depth == 1) { |
1090 |
/* XXX: change QEMU pixel 8 bit pixel format to match the VNC one ? */
|
1091 |
vnc_write_u16(vs, 7); /* red-max */ |
1092 |
vnc_write_u16(vs, 7); /* green-max */ |
1093 |
vnc_write_u16(vs, 3); /* blue-max */ |
1094 |
vnc_write_u8(vs, 5); /* red-shift */ |
1095 |
vnc_write_u8(vs, 2); /* green-shift */ |
1096 |
vnc_write_u8(vs, 0); /* blue-shift */ |
1097 |
vs->send_hextile_tile = send_hextile_tile_8; |
1098 |
} |
1099 |
vs->write_pixels = vnc_write_pixels_copy; |
1100 |
|
1101 |
vnc_write(vs, pad, 3); /* padding */ |
1102 |
|
1103 |
vnc_write_u32(vs, 4);
|
1104 |
vnc_write(vs, "QEMU", 4); |
1105 |
vnc_flush(vs); |
1106 |
|
1107 |
vnc_read_when(vs, protocol_client_msg, 1);
|
1108 |
|
1109 |
return 0; |
1110 |
} |
1111 |
|
1112 |
static int protocol_version(VncState *vs, char *version, size_t len) |
1113 |
{ |
1114 |
char local[13]; |
1115 |
int maj, min;
|
1116 |
|
1117 |
memcpy(local, version, 12);
|
1118 |
local[12] = 0; |
1119 |
|
1120 |
if (sscanf(local, "RFB %03d.%03d\n", &maj, &min) != 2) { |
1121 |
vnc_client_error(vs); |
1122 |
return 0; |
1123 |
} |
1124 |
|
1125 |
vnc_write_u32(vs, 1); /* None */ |
1126 |
vnc_flush(vs); |
1127 |
|
1128 |
vnc_read_when(vs, protocol_client_init, 1);
|
1129 |
|
1130 |
return 0; |
1131 |
} |
1132 |
|
1133 |
static void vnc_listen_read(void *opaque) |
1134 |
{ |
1135 |
VncState *vs = opaque; |
1136 |
struct sockaddr_in addr;
|
1137 |
socklen_t addrlen = sizeof(addr);
|
1138 |
|
1139 |
vs->csock = accept(vs->lsock, (struct sockaddr *)&addr, &addrlen);
|
1140 |
if (vs->csock != -1) { |
1141 |
socket_set_nonblock(vs->csock); |
1142 |
qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, opaque); |
1143 |
vnc_write(vs, "RFB 003.003\n", 12); |
1144 |
vnc_flush(vs); |
1145 |
vnc_read_when(vs, protocol_version, 12);
|
1146 |
memset(vs->old_data, 0, vs->ds->linesize * vs->ds->height);
|
1147 |
memset(vs->dirty_row, 0xFF, sizeof(vs->dirty_row)); |
1148 |
vs->has_resize = 0;
|
1149 |
vs->has_hextile = 0;
|
1150 |
vs->ds->dpy_copy = NULL;
|
1151 |
} |
1152 |
} |
1153 |
|
1154 |
extern int parse_host_port(struct sockaddr_in *saddr, const char *str); |
1155 |
|
1156 |
void vnc_display_init(DisplayState *ds, const char *arg) |
1157 |
{ |
1158 |
struct sockaddr *addr;
|
1159 |
struct sockaddr_in iaddr;
|
1160 |
#ifndef _WIN32
|
1161 |
struct sockaddr_un uaddr;
|
1162 |
#endif
|
1163 |
int reuse_addr, ret;
|
1164 |
socklen_t addrlen; |
1165 |
const char *p; |
1166 |
VncState *vs; |
1167 |
|
1168 |
vs = qemu_mallocz(sizeof(VncState));
|
1169 |
if (!vs)
|
1170 |
exit(1);
|
1171 |
|
1172 |
ds->opaque = vs; |
1173 |
vnc_state = vs; |
1174 |
vs->display = arg; |
1175 |
|
1176 |
vs->lsock = -1;
|
1177 |
vs->csock = -1;
|
1178 |
vs->depth = 4;
|
1179 |
vs->last_x = -1;
|
1180 |
vs->last_y = -1;
|
1181 |
|
1182 |
vs->ds = ds; |
1183 |
|
1184 |
if (!keyboard_layout)
|
1185 |
keyboard_layout = "en-us";
|
1186 |
|
1187 |
vs->kbd_layout = init_keyboard_layout(keyboard_layout); |
1188 |
if (!vs->kbd_layout)
|
1189 |
exit(1);
|
1190 |
|
1191 |
vs->ds->data = NULL;
|
1192 |
vs->ds->dpy_update = vnc_dpy_update; |
1193 |
vs->ds->dpy_resize = vnc_dpy_resize; |
1194 |
vs->ds->dpy_refresh = vnc_dpy_refresh; |
1195 |
|
1196 |
memset(vs->dirty_row, 0xFF, sizeof(vs->dirty_row)); |
1197 |
|
1198 |
vnc_dpy_resize(vs->ds, 640, 400); |
1199 |
|
1200 |
#ifndef _WIN32
|
1201 |
if (strstart(arg, "unix:", &p)) { |
1202 |
addr = (struct sockaddr *)&uaddr;
|
1203 |
addrlen = sizeof(uaddr);
|
1204 |
|
1205 |
vs->lsock = socket(PF_UNIX, SOCK_STREAM, 0);
|
1206 |
if (vs->lsock == -1) { |
1207 |
fprintf(stderr, "Could not create socket\n");
|
1208 |
exit(1);
|
1209 |
} |
1210 |
|
1211 |
uaddr.sun_family = AF_UNIX; |
1212 |
memset(uaddr.sun_path, 0, 108); |
1213 |
snprintf(uaddr.sun_path, 108, "%s", p); |
1214 |
|
1215 |
unlink(uaddr.sun_path); |
1216 |
} else
|
1217 |
#endif
|
1218 |
{ |
1219 |
addr = (struct sockaddr *)&iaddr;
|
1220 |
addrlen = sizeof(iaddr);
|
1221 |
|
1222 |
vs->lsock = socket(PF_INET, SOCK_STREAM, 0);
|
1223 |
if (vs->lsock == -1) { |
1224 |
fprintf(stderr, "Could not create socket\n");
|
1225 |
exit(1);
|
1226 |
} |
1227 |
|
1228 |
if (parse_host_port(&iaddr, arg) < 0) { |
1229 |
fprintf(stderr, "Could not parse VNC address\n");
|
1230 |
exit(1);
|
1231 |
} |
1232 |
|
1233 |
iaddr.sin_port = htons(ntohs(iaddr.sin_port) + 5900);
|
1234 |
|
1235 |
reuse_addr = 1;
|
1236 |
ret = setsockopt(vs->lsock, SOL_SOCKET, SO_REUSEADDR, |
1237 |
(const char *)&reuse_addr, sizeof(reuse_addr)); |
1238 |
if (ret == -1) { |
1239 |
fprintf(stderr, "setsockopt() failed\n");
|
1240 |
exit(1);
|
1241 |
} |
1242 |
} |
1243 |
|
1244 |
if (bind(vs->lsock, addr, addrlen) == -1) { |
1245 |
fprintf(stderr, "bind() failed\n");
|
1246 |
exit(1);
|
1247 |
} |
1248 |
|
1249 |
if (listen(vs->lsock, 1) == -1) { |
1250 |
fprintf(stderr, "listen() failed\n");
|
1251 |
exit(1);
|
1252 |
} |
1253 |
|
1254 |
ret = qemu_set_fd_handler2(vs->lsock, vnc_listen_poll, vnc_listen_read, NULL, vs);
|
1255 |
if (ret == -1) { |
1256 |
exit(1);
|
1257 |
} |
1258 |
} |