Re: [3/6] [PATCH spice] Add horizontal mouse wheel support

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> 
> Signed-off-by: Matthew Francis <mjay.francis@xxxxxxxxx>
> ---
>  README                  |  2 +-
>  configure.ac            |  2 +-
>  server/inputs-channel.c | 15 +++++++++++----
>  server/spice-input.h    |  8 ++++----
>  4 files changed, 17 insertions(+), 10 deletions(-)
> 
> diff --git a/README b/README
> index 4aaf6a7..1e6e677 100644
> --- a/README
> +++ b/README
> @@ -27,7 +27,7 @@ Or to install into a private user specific location
>  The following mandatory dependencies are required in order to
>  build SPICE
>  
> -    Spice protocol >= 0.12.13
> +    Spice protocol >= 0.12.14
>      Pixman         >= 0.17.7
>      OpenSSL
>      libjpeg
> diff --git a/configure.ac b/configure.ac
> index fb266ad..3401dba 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -156,7 +156,7 @@ AS_IF([test x"$have_smartcard" = "xyes"], [
>      AS_VAR_APPEND([SPICE_REQUIRES], [" libcacard >= 0.1.2"])
>  ])
>  
> -SPICE_PROTOCOL_MIN_VER=0.12.13
> +SPICE_PROTOCOL_MIN_VER=0.12.14
>  PKG_CHECK_MODULES([SPICE_PROTOCOL], [spice-protocol >=
>  $SPICE_PROTOCOL_MIN_VER])
>  AC_SUBST([SPICE_PROTOCOL_MIN_VER])
>  
> diff --git a/server/inputs-channel.c b/server/inputs-channel.c
> index f6ad27e..0e295b0 100644
> --- a/server/inputs-channel.c
> +++ b/server/inputs-channel.c
> @@ -287,7 +287,7 @@ static bool
> inputs_channel_handle_message(RedChannelClient *rcc, uint16_t type,
>              SpiceMouseInterface *sif;
>              sif = SPICE_CONTAINEROF(mouse->base.sif, SpiceMouseInterface,
>              base);
>              sif->motion(mouse,
> -                        mouse_motion->dx, mouse_motion->dy, 0,
> +                        mouse_motion->dx, mouse_motion->dy, 0, 0,
>                          RED_MOUSE_STATE_TO_LOCAL(mouse_motion->buttons_state));
>          }
>          break;
> @@ -317,8 +317,13 @@ static bool
> inputs_channel_handle_message(RedChannelClient *rcc, uint16_t type,
>      }
>      case SPICE_MSGC_INPUTS_MOUSE_PRESS: {
>          SpiceMsgcMousePress *mouse_press = message;
> +        int dw = 0;
>          int dz = 0;
> -        if (mouse_press->button == SPICE_MOUSE_BUTTON_UP) {
> +        if (mouse_press->button == SPICE_MOUSE_BUTTON_WHEEL_LEFT) {
> +            dw = -1;
> +        } else if (mouse_press->button == SPICE_MOUSE_BUTTON_WHEEL_RIGHT) {
> +            dw = 1;
> +        } else if (mouse_press->button == SPICE_MOUSE_BUTTON_UP) {
>              dz = -1;
>          } else if (mouse_press->button == SPICE_MOUSE_BUTTON_DOWN) {
>              dz = 1;
> @@ -327,6 +332,8 @@ static bool
> inputs_channel_handle_message(RedChannelClient *rcc, uint16_t type,
>              if (reds_config_get_agent_mouse(reds) && reds_has_vdagent(reds))
>              {
>                  inputs_channel->mouse_state.buttons =
>                      RED_MOUSE_BUTTON_STATE_TO_AGENT(mouse_press->buttons_state)
>                      |
> +                    (dw == -1 ? VD_AGENT_WLBUTTON_MASK : 0) |
> +                    (dw == 1 ? VD_AGENT_WRBUTTON_MASK : 0) |
>                      (dz == -1 ? VD_AGENT_UBUTTON_MASK : 0) |
>                      (dz == 1 ? VD_AGENT_DBUTTON_MASK : 0);
>                  reds_handle_agent_mouse_event(reds,
>                  &inputs_channel->mouse_state);
> @@ -334,14 +341,14 @@ static bool
> inputs_channel_handle_message(RedChannelClient *rcc, uint16_t type,
>                  SpiceTabletInterface *sif;
>                  sif =
>                  SPICE_CONTAINEROF(inputs_channel_get_tablet(inputs_channel)->base.sif,
>                                          SpiceTabletInterface, base);
> -                sif->wheel(inputs_channel_get_tablet(inputs_channel), dz,
> +                sif->wheel(inputs_channel_get_tablet(inputs_channel), dw,
> dz,
>                             RED_MOUSE_STATE_TO_LOCAL(mouse_press->buttons_state));
>              }
>          } else if (inputs_channel_get_mouse(inputs_channel)) {
>              SpiceMouseInterface *sif;
>              sif =
>              SPICE_CONTAINEROF(inputs_channel_get_mouse(inputs_channel)->base.sif,
>                                      SpiceMouseInterface, base);
> -            sif->motion(inputs_channel_get_mouse(inputs_channel), 0, 0, dz,
> +            sif->motion(inputs_channel_get_mouse(inputs_channel), 0, 0, dw,
> dz,
>                          RED_MOUSE_STATE_TO_LOCAL(mouse_press->buttons_state));
>          }
>          break;
> diff --git a/server/spice-input.h b/server/spice-input.h
> index dc07c4f..1e2e44f 100644
> --- a/server/spice-input.h
> +++ b/server/spice-input.h
> @@ -48,7 +48,7 @@ struct SpiceKbdInstance {
>  int spice_server_kbd_leds(SpiceKbdInstance *sin, int leds);
>  
>  #define SPICE_INTERFACE_MOUSE "mouse"
> -#define SPICE_INTERFACE_MOUSE_MAJOR 1
> +#define SPICE_INTERFACE_MOUSE_MAJOR 2
>  #define SPICE_INTERFACE_MOUSE_MINOR 1
>  typedef struct SpiceMouseInterface SpiceMouseInterface;
>  typedef struct SpiceMouseInstance SpiceMouseInstance;
> @@ -57,7 +57,7 @@ typedef struct SpiceMouseState SpiceMouseState;
>  struct SpiceMouseInterface {
>      SpiceBaseInterface base;
>  
> -    void (*motion)(SpiceMouseInstance *sin, int dx, int dy, int dz,
> +    void (*motion)(SpiceMouseInstance *sin, int dx, int dy, int dw, int dz,
>                     uint32_t buttons_state);
>      void (*buttons)(SpiceMouseInstance *sin, uint32_t buttons_state);
>  };
> @@ -68,7 +68,7 @@ struct SpiceMouseInstance {
>  };
>  
>  #define SPICE_INTERFACE_TABLET "tablet"
> -#define SPICE_INTERFACE_TABLET_MAJOR 1
> +#define SPICE_INTERFACE_TABLET_MAJOR 2
>  #define SPICE_INTERFACE_TABLET_MINOR 1
>  typedef struct SpiceTabletInterface SpiceTabletInterface;
>  typedef struct SpiceTabletInstance SpiceTabletInstance;
> @@ -79,7 +79,7 @@ struct SpiceTabletInterface {
>  
>      void (*set_logical_size)(SpiceTabletInstance* tablet, int width, int
>      height);
>      void (*position)(SpiceTabletInstance* tablet, int x, int y, uint32_t
>      buttons_state);
> -    void (*wheel)(SpiceTabletInstance* tablet, int wheel_moution, uint32_t
> buttons_state);
> +    void (*wheel)(SpiceTabletInstance* tablet, int wheel_hmotion, int
> wheel_vmotion, uint32_t buttons_state);
>      void (*buttons)(SpiceTabletInstance* tablet, uint32_t buttons_state);
>  };
>  

This patch changes ABI so would need a version bump and a Qemu patch.
Did you send a patch to Qemu too?
Maybe some capability and usage of some bits in wheel_motion could do
instead of we could add an additional function in SpiceTabletInstance/SpiceMouseInterface
to have a compatible ABI.

OT: what about support for touch pads?

Frediano
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