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Annotation of qemu/ui/spice-input.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (C) 2010 Red Hat, Inc.
        !             3:  *
        !             4:  * This program is free software; you can redistribute it and/or
        !             5:  * modify it under the terms of the GNU General Public License as
        !             6:  * published by the Free Software Foundation; either version 2 or
        !             7:  * (at your option) version 3 of the License.
        !             8:  *
        !             9:  * This program is distributed in the hope that it will be useful,
        !            10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            11:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            12:  * GNU General Public License for more details.
        !            13:  *
        !            14:  * You should have received a copy of the GNU General Public License
        !            15:  * along with this program; if not, see <http://www.gnu.org/licenses/>.
        !            16:  */
        !            17: 
        !            18: #include <stdlib.h>
        !            19: #include <stdio.h>
        !            20: #include <stdbool.h>
        !            21: #include <string.h>
        !            22: 
        !            23: #include <spice.h>
        !            24: #include <spice/enums.h>
        !            25: 
        !            26: #include "qemu-common.h"
        !            27: #include "qemu-spice.h"
        !            28: #include "console.h"
        !            29: 
        !            30: /* keyboard bits */
        !            31: 
        !            32: typedef struct QemuSpiceKbd {
        !            33:     SpiceKbdInstance sin;
        !            34:     int ledstate;
        !            35: } QemuSpiceKbd;
        !            36: 
        !            37: static void kbd_push_key(SpiceKbdInstance *sin, uint8_t frag);
        !            38: static uint8_t kbd_get_leds(SpiceKbdInstance *sin);
        !            39: static void kbd_leds(void *opaque, int l);
        !            40: 
        !            41: static const SpiceKbdInterface kbd_interface = {
        !            42:     .base.type          = SPICE_INTERFACE_KEYBOARD,
        !            43:     .base.description   = "qemu keyboard",
        !            44:     .base.major_version = SPICE_INTERFACE_KEYBOARD_MAJOR,
        !            45:     .base.minor_version = SPICE_INTERFACE_KEYBOARD_MINOR,
        !            46:     .push_scan_freg     = kbd_push_key,
        !            47:     .get_leds           = kbd_get_leds,
        !            48: };
        !            49: 
        !            50: static void kbd_push_key(SpiceKbdInstance *sin, uint8_t frag)
        !            51: {
        !            52:     kbd_put_keycode(frag);
        !            53: }
        !            54: 
        !            55: static uint8_t kbd_get_leds(SpiceKbdInstance *sin)
        !            56: {
        !            57:     QemuSpiceKbd *kbd = container_of(sin, QemuSpiceKbd, sin);
        !            58:     return kbd->ledstate;
        !            59: }
        !            60: 
        !            61: static void kbd_leds(void *opaque, int ledstate)
        !            62: {
        !            63:     QemuSpiceKbd *kbd = opaque;
        !            64: 
        !            65:     kbd->ledstate = 0;
        !            66:     if (ledstate & QEMU_SCROLL_LOCK_LED) {
        !            67:         kbd->ledstate |= SPICE_KEYBOARD_MODIFIER_FLAGS_SCROLL_LOCK;
        !            68:     }
        !            69:     if (ledstate & QEMU_NUM_LOCK_LED) {
        !            70:         kbd->ledstate |= SPICE_KEYBOARD_MODIFIER_FLAGS_NUM_LOCK;
        !            71:     }
        !            72:     if (ledstate & QEMU_CAPS_LOCK_LED) {
        !            73:         kbd->ledstate |= SPICE_KEYBOARD_MODIFIER_FLAGS_CAPS_LOCK;
        !            74:     }
        !            75:     spice_server_kbd_leds(&kbd->sin, ledstate);
        !            76: }
        !            77: 
        !            78: /* mouse bits */
        !            79: 
        !            80: typedef struct QemuSpicePointer {
        !            81:     SpiceMouseInstance  mouse;
        !            82:     SpiceTabletInstance tablet;
        !            83:     int width, height, x, y;
        !            84:     Notifier mouse_mode;
        !            85:     bool absolute;
        !            86: } QemuSpicePointer;
        !            87: 
        !            88: static int map_buttons(int spice_buttons)
        !            89: {
        !            90:     int qemu_buttons = 0;
        !            91: 
        !            92:     /*
        !            93:      * Note: SPICE_MOUSE_BUTTON_* specifies the wire protocol but this
        !            94:      * isn't what we get passed in via interface callbacks for the
        !            95:      * middle and right button ...
        !            96:      */
        !            97:     if (spice_buttons & SPICE_MOUSE_BUTTON_MASK_LEFT) {
        !            98:         qemu_buttons |= MOUSE_EVENT_LBUTTON;
        !            99:     }
        !           100:     if (spice_buttons & 0x04 /* SPICE_MOUSE_BUTTON_MASK_MIDDLE */) {
        !           101:         qemu_buttons |= MOUSE_EVENT_MBUTTON;
        !           102:     }
        !           103:     if (spice_buttons & 0x02 /* SPICE_MOUSE_BUTTON_MASK_RIGHT */) {
        !           104:         qemu_buttons |= MOUSE_EVENT_RBUTTON;
        !           105:     }
        !           106:     return qemu_buttons;
        !           107: }
        !           108: 
        !           109: static void mouse_motion(SpiceMouseInstance *sin, int dx, int dy, int dz,
        !           110:                          uint32_t buttons_state)
        !           111: {
        !           112:     kbd_mouse_event(dx, dy, dz, map_buttons(buttons_state));
        !           113: }
        !           114: 
        !           115: static void mouse_buttons(SpiceMouseInstance *sin, uint32_t buttons_state)
        !           116: {
        !           117:     kbd_mouse_event(0, 0, 0, map_buttons(buttons_state));
        !           118: }
        !           119: 
        !           120: static const SpiceMouseInterface mouse_interface = {
        !           121:     .base.type          = SPICE_INTERFACE_MOUSE,
        !           122:     .base.description   = "mouse",
        !           123:     .base.major_version = SPICE_INTERFACE_MOUSE_MAJOR,
        !           124:     .base.minor_version = SPICE_INTERFACE_MOUSE_MINOR,
        !           125:     .motion             = mouse_motion,
        !           126:     .buttons            = mouse_buttons,
        !           127: };
        !           128: 
        !           129: static void tablet_set_logical_size(SpiceTabletInstance* sin, int width, int height)
        !           130: {
        !           131:     QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
        !           132: 
        !           133:     if (height < 16) {
        !           134:         height = 16;
        !           135:     }
        !           136:     if (width < 16) {
        !           137:         width = 16;
        !           138:     }
        !           139:     pointer->width  = width;
        !           140:     pointer->height = height;
        !           141: }
        !           142: 
        !           143: static void tablet_position(SpiceTabletInstance* sin, int x, int y,
        !           144:                             uint32_t buttons_state)
        !           145: {
        !           146:     QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
        !           147: 
        !           148:     pointer->x = x * 0x7FFF / (pointer->width - 1);
        !           149:     pointer->y = y * 0x7FFF / (pointer->height - 1);
        !           150:     kbd_mouse_event(pointer->x, pointer->y, 0, map_buttons(buttons_state));
        !           151: }
        !           152: 
        !           153: 
        !           154: static void tablet_wheel(SpiceTabletInstance* sin, int wheel,
        !           155:                          uint32_t buttons_state)
        !           156: {
        !           157:     QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
        !           158: 
        !           159:     kbd_mouse_event(pointer->x, pointer->y, wheel, map_buttons(buttons_state));
        !           160: }
        !           161: 
        !           162: static void tablet_buttons(SpiceTabletInstance *sin,
        !           163:                            uint32_t buttons_state)
        !           164: {
        !           165:     QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
        !           166: 
        !           167:     kbd_mouse_event(pointer->x, pointer->y, 0, map_buttons(buttons_state));
        !           168: }
        !           169: 
        !           170: static const SpiceTabletInterface tablet_interface = {
        !           171:     .base.type          = SPICE_INTERFACE_TABLET,
        !           172:     .base.description   = "tablet",
        !           173:     .base.major_version = SPICE_INTERFACE_TABLET_MAJOR,
        !           174:     .base.minor_version = SPICE_INTERFACE_TABLET_MINOR,
        !           175:     .set_logical_size   = tablet_set_logical_size,
        !           176:     .position           = tablet_position,
        !           177:     .wheel              = tablet_wheel,
        !           178:     .buttons            = tablet_buttons,
        !           179: };
        !           180: 
        !           181: static void mouse_mode_notifier(Notifier *notifier)
        !           182: {
        !           183:     QemuSpicePointer *pointer = container_of(notifier, QemuSpicePointer, mouse_mode);
        !           184:     bool is_absolute  = kbd_mouse_is_absolute();
        !           185: 
        !           186:     if (pointer->absolute == is_absolute) {
        !           187:         return;
        !           188:     }
        !           189: 
        !           190:     if (is_absolute) {
        !           191:         qemu_spice_add_interface(&pointer->tablet.base);
        !           192:     } else {
        !           193:         spice_server_remove_interface(&pointer->tablet.base);
        !           194:     }
        !           195:     pointer->absolute = is_absolute;
        !           196: }
        !           197: 
        !           198: void qemu_spice_input_init(void)
        !           199: {
        !           200:     QemuSpiceKbd *kbd;
        !           201:     QemuSpicePointer *pointer;
        !           202: 
        !           203:     kbd = qemu_mallocz(sizeof(*kbd));
        !           204:     kbd->sin.base.sif = &kbd_interface.base;
        !           205:     qemu_spice_add_interface(&kbd->sin.base);
        !           206:     qemu_add_led_event_handler(kbd_leds, kbd);
        !           207: 
        !           208:     pointer = qemu_mallocz(sizeof(*pointer));
        !           209:     pointer->mouse.base.sif  = &mouse_interface.base;
        !           210:     pointer->tablet.base.sif = &tablet_interface.base;
        !           211:     qemu_spice_add_interface(&pointer->mouse.base);
        !           212: 
        !           213:     pointer->absolute = false;
        !           214:     pointer->mouse_mode.notify = mouse_mode_notifier;
        !           215:     qemu_add_mouse_mode_change_notifier(&pointer->mouse_mode);
        !           216:     mouse_mode_notifier(&pointer->mouse_mode);
        !           217: }

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