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author | Upstream <upstream-import@none> | 1970-01-12 13:46:40 +0000 |
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committer | Upstream <upstream-import@none> | 1970-01-12 13:46:40 +0000 |
commit | 413f05aaf54fa08c0ae7e997327a4f4a473c0a8d (patch) | |
tree | 642d637ab01ee6c54ca27d1fa96cf92a32df8053 /vnc.c | |
download | external_qemu-413f05aaf54fa08c0ae7e997327a4f4a473c0a8d.zip external_qemu-413f05aaf54fa08c0ae7e997327a4f4a473c0a8d.tar.gz external_qemu-413f05aaf54fa08c0ae7e997327a4f4a473c0a8d.tar.bz2 |
external/qemu 0.8.2
Diffstat (limited to 'vnc.c')
-rw-r--r-- | vnc.c | 1085 |
1 files changed, 1085 insertions, 0 deletions
@@ -0,0 +1,1085 @@ +/* + * QEMU VNC display driver + * + * Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws> + * Copyright (C) 2006 Fabrice Bellard + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include "vl.h" +#include "qemu_socket.h" + +#define VNC_REFRESH_INTERVAL (1000 / 30) + +#include "vnc_keysym.h" +#include "keymaps.c" + +typedef struct Buffer +{ + size_t capacity; + size_t offset; + char *buffer; +} Buffer; + +typedef struct VncState VncState; + +typedef int VncReadEvent(VncState *vs, char *data, size_t len); + +typedef void VncWritePixels(VncState *vs, void *data, int size); + +typedef void VncSendHextileTile(VncState *vs, + int x, int y, int w, int h, + uint32_t *last_bg, + uint32_t *last_fg, + int *has_bg, int *has_fg); + +#define VNC_MAX_WIDTH 2048 +#define VNC_MAX_HEIGHT 2048 +#define VNC_DIRTY_WORDS (VNC_MAX_WIDTH / (16 * 32)) + +struct VncState +{ + QEMUTimer *timer; + int lsock; + int csock; + DisplayState *ds; + int need_update; + int width; + int height; + uint32_t dirty_row[VNC_MAX_HEIGHT][VNC_DIRTY_WORDS]; + char *old_data; + int depth; /* internal VNC frame buffer byte per pixel */ + int has_resize; + int has_hextile; + Buffer output; + Buffer input; + kbd_layout_t *kbd_layout; + /* current output mode information */ + VncWritePixels *write_pixels; + VncSendHextileTile *send_hextile_tile; + int pix_bpp, pix_big_endian; + int red_shift, red_max, red_shift1; + int green_shift, green_max, green_shift1; + int blue_shift, blue_max, blue_shift1; + + VncReadEvent *read_handler; + size_t read_handler_expect; +}; + +/* TODO + 1) Get the queue working for IO. + 2) there is some weirdness when using the -S option (the screen is grey + and not totally invalidated + 3) resolutions > 1024 +*/ + +static void vnc_write(VncState *vs, const void *data, size_t len); +static void vnc_write_u32(VncState *vs, uint32_t value); +static void vnc_write_s32(VncState *vs, int32_t value); +static void vnc_write_u16(VncState *vs, uint16_t value); +static void vnc_write_u8(VncState *vs, uint8_t value); +static void vnc_flush(VncState *vs); +static void vnc_update_client(void *opaque); +static void vnc_client_read(void *opaque); + +static inline void vnc_set_bit(uint32_t *d, int k) +{ + d[k >> 5] |= 1 << (k & 0x1f); +} + +static inline void vnc_clear_bit(uint32_t *d, int k) +{ + d[k >> 5] &= ~(1 << (k & 0x1f)); +} + +static inline void vnc_set_bits(uint32_t *d, int n, int nb_words) +{ + int j; + + j = 0; + while (n >= 32) { + d[j++] = -1; + n -= 32; + } + if (n > 0) + d[j++] = (1 << n) - 1; + while (j < nb_words) + d[j++] = 0; +} + +static inline int vnc_get_bit(const uint32_t *d, int k) +{ + return (d[k >> 5] >> (k & 0x1f)) & 1; +} + +static inline int vnc_and_bits(const uint32_t *d1, const uint32_t *d2, + int nb_words) +{ + int i; + for(i = 0; i < nb_words; i++) { + if ((d1[i] & d2[i]) != 0) + return 1; + } + return 0; +} + +static void vnc_dpy_update(DisplayState *ds, int x, int y, int w, int h) +{ + VncState *vs = ds->opaque; + int i; + + h += y; + + for (; y < h; y++) + for (i = 0; i < w; i += 16) + vnc_set_bit(vs->dirty_row[y], (x + i) / 16); +} + +static void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h, + int32_t encoding) +{ + vnc_write_u16(vs, x); + vnc_write_u16(vs, y); + vnc_write_u16(vs, w); + vnc_write_u16(vs, h); + + vnc_write_s32(vs, encoding); +} + +static void vnc_dpy_resize(DisplayState *ds, int w, int h) +{ + VncState *vs = ds->opaque; + + ds->data = realloc(ds->data, w * h * vs->depth); + vs->old_data = realloc(vs->old_data, w * h * vs->depth); + + if (ds->data == NULL || vs->old_data == NULL) { + fprintf(stderr, "vnc: memory allocation failed\n"); + exit(1); + } + + ds->depth = vs->depth * 8; + ds->width = w; + ds->height = h; + ds->linesize = w * vs->depth; + if (vs->csock != -1 && vs->has_resize) { + vnc_write_u8(vs, 0); /* msg id */ + vnc_write_u8(vs, 0); + vnc_write_u16(vs, 1); /* number of rects */ + vnc_framebuffer_update(vs, 0, 0, ds->width, ds->height, -223); + vnc_flush(vs); + vs->width = ds->width; + vs->height = ds->height; + } +} + +/* fastest code */ +static void vnc_write_pixels_copy(VncState *vs, void *pixels, int size) +{ + vnc_write(vs, pixels, size); +} + +/* slowest but generic code. */ +static void vnc_convert_pixel(VncState *vs, uint8_t *buf, uint32_t v) +{ + unsigned int r, g, b; + + r = (v >> vs->red_shift1) & vs->red_max; + g = (v >> vs->green_shift1) & vs->green_max; + b = (v >> vs->blue_shift1) & vs->blue_max; + v = (r << vs->red_shift) | + (g << vs->green_shift) | + (b << vs->blue_shift); + switch(vs->pix_bpp) { + case 1: + buf[0] = v; + break; + case 2: + if (vs->pix_big_endian) { + buf[0] = v >> 8; + buf[1] = v; + } else { + buf[1] = v >> 8; + buf[0] = v; + } + break; + default: + case 4: + if (vs->pix_big_endian) { + buf[0] = v >> 24; + buf[1] = v >> 16; + buf[2] = v >> 8; + buf[3] = v; + } else { + buf[3] = v >> 24; + buf[2] = v >> 16; + buf[1] = v >> 8; + buf[0] = v; + } + break; + } +} + +static void vnc_write_pixels_generic(VncState *vs, void *pixels1, int size) +{ + uint32_t *pixels = pixels1; + uint8_t buf[4]; + int n, i; + + n = size >> 2; + for(i = 0; i < n; i++) { + vnc_convert_pixel(vs, buf, pixels[i]); + vnc_write(vs, buf, vs->pix_bpp); + } +} + +static void send_framebuffer_update_raw(VncState *vs, int x, int y, int w, int h) +{ + int i; + char *row; + + vnc_framebuffer_update(vs, x, y, w, h, 0); + + row = vs->ds->data + y * vs->ds->linesize + x * vs->depth; + for (i = 0; i < h; i++) { + vs->write_pixels(vs, row, w * vs->depth); + row += vs->ds->linesize; + } +} + +static void hextile_enc_cord(uint8_t *ptr, int x, int y, int w, int h) +{ + ptr[0] = ((x & 0x0F) << 4) | (y & 0x0F); + ptr[1] = (((w - 1) & 0x0F) << 4) | ((h - 1) & 0x0F); +} + +#define BPP 8 +#include "vnchextile.h" +#undef BPP + +#define BPP 16 +#include "vnchextile.h" +#undef BPP + +#define BPP 32 +#include "vnchextile.h" +#undef BPP + +#define GENERIC +#define BPP 32 +#include "vnchextile.h" +#undef BPP +#undef GENERIC + +static void send_framebuffer_update_hextile(VncState *vs, int x, int y, int w, int h) +{ + int i, j; + int has_fg, has_bg; + uint32_t last_fg32, last_bg32; + + vnc_framebuffer_update(vs, x, y, w, h, 5); + + has_fg = has_bg = 0; + for (j = y; j < (y + h); j += 16) { + for (i = x; i < (x + w); i += 16) { + vs->send_hextile_tile(vs, i, j, + MIN(16, x + w - i), MIN(16, y + h - j), + &last_bg32, &last_fg32, &has_bg, &has_fg); + } + } +} + +static void send_framebuffer_update(VncState *vs, int x, int y, int w, int h) +{ + if (vs->has_hextile) + send_framebuffer_update_hextile(vs, x, y, w, h); + else + send_framebuffer_update_raw(vs, x, y, w, h); +} + +static void vnc_copy(DisplayState *ds, int src_x, int src_y, int dst_x, int dst_y, int w, int h) +{ + int src, dst; + char *src_row; + char *dst_row; + char *old_row; + int y = 0; + int pitch = ds->linesize; + VncState *vs = ds->opaque; + + vnc_update_client(vs); + + if (dst_y > src_y) { + y = h - 1; + pitch = -pitch; + } + + src = (ds->linesize * (src_y + y) + vs->depth * src_x); + dst = (ds->linesize * (dst_y + y) + vs->depth * dst_x); + + src_row = ds->data + src; + dst_row = ds->data + dst; + old_row = vs->old_data + dst; + + for (y = 0; y < h; y++) { + memmove(old_row, src_row, w * vs->depth); + memmove(dst_row, src_row, w * vs->depth); + src_row += pitch; + dst_row += pitch; + old_row += pitch; + } + + vnc_write_u8(vs, 0); /* msg id */ + vnc_write_u8(vs, 0); + vnc_write_u16(vs, 1); /* number of rects */ + vnc_framebuffer_update(vs, dst_x, dst_y, w, h, 1); + vnc_write_u16(vs, src_x); + vnc_write_u16(vs, src_y); + vnc_flush(vs); +} + +static int find_dirty_height(VncState *vs, int y, int last_x, int x) +{ + int h; + + for (h = 1; h < (vs->height - y); h++) { + int tmp_x; + if (!vnc_get_bit(vs->dirty_row[y + h], last_x)) + break; + for (tmp_x = last_x; tmp_x < x; tmp_x++) + vnc_clear_bit(vs->dirty_row[y + h], tmp_x); + } + + return h; +} + +static void vnc_update_client(void *opaque) +{ + VncState *vs = opaque; + + if (vs->need_update && vs->csock != -1) { + int y; + char *row; + char *old_row; + uint32_t width_mask[VNC_DIRTY_WORDS]; + int n_rectangles; + int saved_offset; + int has_dirty = 0; + + vnc_set_bits(width_mask, (vs->width / 16), VNC_DIRTY_WORDS); + + /* Walk through the dirty map and eliminate tiles that + really aren't dirty */ + row = vs->ds->data; + old_row = vs->old_data; + + for (y = 0; y < vs->height; y++) { + if (vnc_and_bits(vs->dirty_row[y], width_mask, VNC_DIRTY_WORDS)) { + int x; + char *ptr, *old_ptr; + + ptr = row; + old_ptr = old_row; + + for (x = 0; x < vs->ds->width; x += 16) { + if (memcmp(old_ptr, ptr, 16 * vs->depth) == 0) { + vnc_clear_bit(vs->dirty_row[y], (x / 16)); + } else { + has_dirty = 1; + memcpy(old_ptr, ptr, 16 * vs->depth); + } + + ptr += 16 * vs->depth; + old_ptr += 16 * vs->depth; + } + } + + row += vs->ds->linesize; + old_row += vs->ds->linesize; + } + + if (!has_dirty) { + qemu_mod_timer(vs->timer, qemu_get_clock(rt_clock) + VNC_REFRESH_INTERVAL); + return; + } + + /* Count rectangles */ + n_rectangles = 0; + vnc_write_u8(vs, 0); /* msg id */ + vnc_write_u8(vs, 0); + saved_offset = vs->output.offset; + vnc_write_u16(vs, 0); + + for (y = 0; y < vs->height; y++) { + int x; + int last_x = -1; + for (x = 0; x < vs->width / 16; x++) { + if (vnc_get_bit(vs->dirty_row[y], x)) { + if (last_x == -1) { + last_x = x; + } + vnc_clear_bit(vs->dirty_row[y], x); + } else { + if (last_x != -1) { + int h = find_dirty_height(vs, y, last_x, x); + send_framebuffer_update(vs, last_x * 16, y, (x - last_x) * 16, h); + n_rectangles++; + } + last_x = -1; + } + } + if (last_x != -1) { + int h = find_dirty_height(vs, y, last_x, x); + send_framebuffer_update(vs, last_x * 16, y, (x - last_x) * 16, h); + n_rectangles++; + } + } + vs->output.buffer[saved_offset] = (n_rectangles >> 8) & 0xFF; + vs->output.buffer[saved_offset + 1] = n_rectangles & 0xFF; + vnc_flush(vs); + + } + qemu_mod_timer(vs->timer, qemu_get_clock(rt_clock) + VNC_REFRESH_INTERVAL); +} + +static void vnc_timer_init(VncState *vs) +{ + if (vs->timer == NULL) { + vs->timer = qemu_new_timer(rt_clock, vnc_update_client, vs); + qemu_mod_timer(vs->timer, qemu_get_clock(rt_clock)); + } +} + +static void vnc_dpy_refresh(DisplayState *ds) +{ + VncState *vs = ds->opaque; + vnc_timer_init(vs); + vga_hw_update(); +} + +static int vnc_listen_poll(void *opaque) +{ + VncState *vs = opaque; + if (vs->csock == -1) + return 1; + return 0; +} + +static void buffer_reserve(Buffer *buffer, size_t len) +{ + if ((buffer->capacity - buffer->offset) < len) { + buffer->capacity += (len + 1024); + buffer->buffer = realloc(buffer->buffer, buffer->capacity); + if (buffer->buffer == NULL) { + fprintf(stderr, "vnc: out of memory\n"); + exit(1); + } + } +} + +static int buffer_empty(Buffer *buffer) +{ + return buffer->offset == 0; +} + +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) +{ + char 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(char *data, size_t offset) +{ + return data[offset]; +} + +static uint16_t read_u16(char *data, size_t offset) +{ + return ((data[offset] & 0xFF) << 8) | (data[offset + 1] & 0xFF); +} + +static int32_t read_s32(char *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(char *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 do_key_event(VncState *vs, int down, uint32_t sym) +{ + int keycode; + + keycode = keysym2scancode(vs->kbd_layout, sym & 0xFFFF); + + if (keycode & 0x80) + kbd_put_keycode(0xe0); + if (down) + kbd_put_keycode(keycode & 0x7f); + else + kbd_put_keycode(keycode | 0x80); +} + +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); +} |