[PATCH 1/1] Add a FreeRds backend, take 3
Mariusz Ceier
mceier+wayland at gmail.com
Sun Dec 22 14:52:05 PST 2013
Hello,
I have installed freerdp with freerds and pysession-manager.
Applied this patch in weston, and configured weston as static content
provider for pysession-manager (both as greeter and desktop).
Here, I have some results after testing:
1) When using remmina as a client:
a) With 1 connection - desktop shows up properly and it's possible
to interact with weston and wayland clients.
b) With 2 or more connections simultaneously - only last connection
reacts to input - it seems, there's only 1 seat for all connections,
and only last connection owns it ?
c) After disconnecting, and during weston shutdown, text-backend.c
tries to use input_method structure in unbind_input_method function,
after freeing it in input_method_notifier_destroy function,
here's backtrace:
==25237== Invalid read of size 8
==25237== at 0x41D49F: unbind_input_method (text-backend.c:750)
==25237== by 0x4E3B3F8: destroy_resource (wayland-server.c:533)
==25237== by 0x4E416D9: for_each_helper (wayland-util.c:353)
==25237== by 0x4E41715: wl_map_for_each (wayland-util.c:359)
==25237== by 0x4E3B718: wl_client_destroy (wayland-server.c:673)
==25237== by 0x41D9FE: text_backend_notifier_destroy (text-backend.c:938)
==25237== by 0x408248: wl_signal_emit (wayland-server.h:260)
==25237== by 0x411C60: main (compositor.c:4248)
==25237== Address 0x68cf830 is 112 bytes inside a block of size 120 free'd
==25237== at 0x4C2B0CC: free (vg_replace_malloc.c:468)
==25237== by 0x41D627: input_method_notifier_destroy (text-backend.c:804)
==25237== by 0x411D78: wl_signal_emit (wayland-server.h:260)
==25237== by 0x416C1A: weston_seat_release (input.c:2199)
==25237== by 0x6A3DB89: freerds_kill_client (compositor-freerds.c:871)
==25237== by 0x6A3DF31: freerds_named_pipe_activity
(compositor-freerds.c:948)
==25237== by 0x4E3D7F7: wl_event_source_fd_dispatch (event-loop.c:86)
==25237== by 0x4E3E1A8: wl_event_loop_dispatch (event-loop.c:421)
==25237== by 0x4E3BFEC: wl_display_run (wayland-server.c:961)
==25237== by 0x411C3F: main (compositor.c:4242)
I don't know which backend - freerds or text - does here something wrong.
2) When using windows remote desktop client, weston exits after
accepting connection due to SIGPIPE signal. Here's backtrace:
==31717==
==31717== Process terminating with default action of signal 13 (SIGPIPE)
==31717== at 0x6080AD0: __write_nocancel (syscall-template.S:81)
==31717== by 0x6A3C156: freerds_send_stream (compositor-freerds.c:130)
==31717== by 0x6A3C4A4: freerds_refresh_region (compositor-freerds.c:186)
==31717== by 0x6A3DA19: freerds_treat_message (compositor-freerds.c:821)
==31717== by 0x6A3DF0A: freerds_client_activity (compositor-freerds.c:920)
==31717== by 0x4E3D7F7: wl_event_source_fd_dispatch (event-loop.c:86)
==31717== by 0x4E3E1A8: wl_event_loop_dispatch (event-loop.c:421)
==31717== by 0x4E3BFEC: wl_display_run (wayland-server.c:961)
==31717== by 0x411C3F: main (compositor.c:4242)
I can provide more detailed logs, if anyone is interested.
On 19 December 2013 00:00, Hardening <rdp.effort at gmail.com> wrote:
> FreeRDS is a FreeRDP based RDP server, the server handles incoming connections and
> talks RDP with the peers. FreeRds cooperates with an "out-service": the out-service creates
> the content to display, and FreeRds will take care of encoding the content in the
> appropriate format (bitmapUpdate, remoteFx or NsCodec).
> To communicate, they use a unix socket for passing commands, and a shared buffer for
> the screen content. A vblank signal sent by FreeRds via the command channel allows
> to share the framebuffer nicely.
> This patch adds a backend to create a FreeRDS compositor and have weston being an out-service
> for FreeRds.
>
> Compared to the previous version this one fixes a segfault at FreeRds disconnection. The mode
> switch has been implemented too, so the desktop resizes if you connect once in 800x600 and then
> in 1024x768. And finally the refresh rates are now correctly send in mHz not Hz.
> ---
> configure.ac | 10 +
> src/compositor-freerds.c | 1057 ++++++++++++++++++++++++++++++++++++++++++++++
> 2 files changed, 1067 insertions(+)
> create mode 100644 src/compositor-freerds.c
>
> diff --git a/configure.ac b/configure.ac
> index adf1bae..d9c1dfe 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -206,6 +206,15 @@ if test x$enable_rdp_compositor = xyes; then
> PKG_CHECK_MODULES(RDP_COMPOSITOR, [freerdp >= 1.1.0])
> fi
>
> +AC_ARG_ENABLE([freerds-compositor], [ --enable-freerds-compositor],,
> + enable_freerds_compositor=no)
> +AM_CONDITIONAL([ENABLE_FREERDS_COMPOSITOR],
> + [test x$enable_freerds_compositor = xyes])
> +if test x$enable_freerds_compositor = xyes; then
> + AC_DEFINE([BUILD_FREERDS_COMPOSITOR], [1], [Build the FreeRDS compositor])
> + PKG_CHECK_MODULES(FREERDS_COMPOSITOR, [freerds-backend])
> +fi
> +
> AC_ARG_WITH(cairo,
> AS_HELP_STRING([--with-cairo=@<:@image|gl|glesv2@:>@]
> [Which Cairo renderer to use for the clients]),
> @@ -526,6 +535,7 @@ AC_MSG_RESULT([
> RPI Compositor ${enable_rpi_compositor}
> FBDEV Compositor ${enable_fbdev_compositor}
> RDP Compositor ${enable_rdp_compositor}
> + FreeRDS Compositor ${enable_freerds_compositor}
>
> Raspberry Pi BCM headers ${have_bcm_host}
>
> diff --git a/src/compositor-freerds.c b/src/compositor-freerds.c
> new file mode 100644
> index 0000000..19b68c3
> --- /dev/null
> +++ b/src/compositor-freerds.c
> @@ -0,0 +1,1057 @@
> +/**
> + * Copyright © 2013 Hardening <contact at hardening-consulting.com>
> + *
> + * Permission to use, copy, modify, distribute, and sell this software and
> + * its documentation for any purpose is hereby granted without fee, provided
> + * that the above copyright notice appear in all copies and that both that
> + * copyright notice and this permission notice appear in supporting
> + * documentation, and that the name of the copyright holders not be used in
> + * advertising or publicity pertaining to distribution of the software
> + * without specific, written prior permission. The copyright holders make
> + * no representations about the suitability of this software for any
> + * purpose. It is provided "as is" without express or implied warranty.
> + *
> + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
> + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
> + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
> + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
> + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
> + * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
> + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
> + */
> +
> +#include "config.h"
> +
> +#include <stdlib.h>
> +#include <stdbool.h>
> +#include <unistd.h>
> +#include <string.h>
> +#include <errno.h>
> +#include <fcntl.h>
> +#include <sys/socket.h>
> +#include <sys/un.h>
> +#include <sys/shm.h>
> +#include <sys/mman.h>
> +#include <linux/input.h>
> +
> +#include <freerds/backend.h>
> +
> +#include <freerdp/freerdp.h>
> +#include <freerdp/update.h>
> +#include <freerdp/input.h>
> +#include <freerdp/locale/keyboard.h>
> +
> +#include <winpr/input.h>
> +#include <winpr/stream.h>
> +
> +#include "compositor.h"
> +#include "pixman-renderer.h"
> +
> +
> +#define DEFAULT_AXIS_STEP_DISTANCE wl_fixed_from_int(10)
> +#define FREERDS_COMMON_LENGTH 10
> +#define FREERDS_MODE_FPS 60 * 1000
> +
> +
> +struct freerds_compositor_config {
> + int width;
> + int height;
> + char *freerds_named_pipe;
> +};
> +
> +struct freerds_compositor;
> +struct freerds_output;
> +
> +/** @brief state of the module protocol automata */
> +enum StreamState {
> + STREAM_WAITING_COMMON_HEADER,
> + STREAM_WAITING_DATA
> +};
> +
> +struct freerds_compositor {
> + struct weston_compositor base;
> +
> + struct freerds_output *output;
> + struct weston_seat seat;
> +
> + bool have_seat;
> + int listening_fd;
> + struct wl_event_source *server_event_source;
> + int client_fd;
> + struct wl_event_source *client_event_source;
> + enum StreamState streamState;
> + wStream *in_stream;
> + wStream *out_stream;
> + int expected_bytes;
> + UINT32 keyboard_layout;
> + UINT32 keyboard_type;
> +
> + RDS_MSG_COMMON header_common;
> + RDS_MSG_MOUSE_EVENT rds_mouse_event;
> + RDS_MSG_SCANCODE_KEYBOARD_EVENT rds_scancode;
> + RDS_MSG_VIRTUAL_KEYBOARD_EVENT rds_virtual_keyboard;
> +
> + RDS_MSG_SHARED_FRAMEBUFFER rds_shared_fb;
> + RDS_MSG_BEGIN_UPDATE rds_begin_update;
> + RDS_MSG_END_UPDATE rds_end_update;
> + RDS_MSG_PAINT_RECT rds_paint_rect;
> + RDS_MSG_SET_SYSTEM_POINTER rds_set_system_pointer;
> + RDS_MSG_REFRESH_RECT rds_refresh_rect;
> +};
> +
> +struct freerds_output {
> + struct weston_output base;
> + struct freerds_compositor *compositor;
> + struct wl_event_source *finish_frame_timer;
> +
> + int shmid;
> + void *buffer;
> + pixman_image_t *shadow_surface;
> + pixman_region32_t damagedRegion;
> + bool waitingVBlank;
> + bool outputActive;
> +};
> +
> +static void
> +freerds_compositor_config_init(struct freerds_compositor_config *config) {
> + config->width = 640;
> + config->height = 480;
> + config->freerds_named_pipe = 0;
> +}
> +
> +static int
> +freerds_send_stream(struct freerds_compositor *c, wStream *s) {
> + int toWrite, written;
> + const char *ptr;
> +
> + toWrite = Stream_Length(s);
> + ptr = (const char *)Stream_Buffer(s);
> + while (toWrite) {
> + written = write(c->client_fd, ptr, toWrite);
> + if (written <= 0)
> + return -1;
> + toWrite -= written;
> + ptr += written;
> + }
> + return 0;
> +}
> +
> +#define ROUND_DOWN(V, B) ((V) - ((V) % (B)))
> +#define ROUND_UP(V, B) ((V + (B - ((V) % B))))
> +
> +static void
> +freerds_update_framebuffer(struct freerds_compositor *c, pixman_box32_t *rect) {
> + struct freerds_output *output = c->output;
> + unsigned char *src = (unsigned char *)pixman_image_get_data(output->shadow_surface) +
> + (pixman_image_get_stride(output->shadow_surface) * rect->y1) +
> + (rect->x1 * 4);
> + unsigned char *dst = (unsigned char *)output->buffer +
> + (c->rds_shared_fb.scanline * rect->y1) +
> + (rect->x1 * 4);
> + int widthBytes = (rect->x2 - rect->x1) * 4;
> + int y;
> +
> + for (y = rect->y1; y < rect->y2; y++) {
> + memcpy(dst, src, widthBytes);
> + src += pixman_image_get_stride(output->shadow_surface);
> + dst += c->rds_shared_fb.scanline;
> + }
> +}
> +
> +static void
> +freerds_refresh_region(struct freerds_compositor *c, pixman_region32_t *region)
> +{
> + int nrects, i;
> + pixman_box32_t *rect;
> + RDS_MSG_PAINT_RECT *paint = &c->rds_paint_rect;
> +
> + Stream_SetPosition(c->out_stream, 0);
> + freerds_server_message_write(c->out_stream, (RDS_MSG_COMMON *)&c->rds_begin_update);
> +
> + rect = pixman_region32_rectangles(region, &nrects);
> + for (i = 0; i < nrects; i++, rect++) {
> + //weston_log("refresh_rect(%d,%d,%d,%d)\n", rect->x1, rect->y1, rect->x2, rect->y2);
> + freerds_update_framebuffer(c, rect);
> +
> + paint->nXSrc = paint->nLeftRect = ROUND_DOWN(rect->x1, 16);
> + paint->nYSrc = paint->nTopRect = ROUND_DOWN(rect->y1, 16);
> + paint->nWidth = ROUND_UP(rect->x2, 16) - paint->nLeftRect;
> + paint->nHeight = ROUND_UP(rect->y2, 16) - paint->nTopRect;
> + freerds_server_message_write(c->out_stream, (RDS_MSG_COMMON *)&c->rds_paint_rect);
> + }
> +
> + freerds_server_message_write(c->out_stream, (RDS_MSG_COMMON *)&c->rds_end_update);
> +
> + Stream_SealLength(c->out_stream);
> + freerds_send_stream(c, c->out_stream);
> +
> + pixman_region32_clear(region);
> +
> + c->output->waitingVBlank = true;
> +}
> +
> +
> +static void
> +freerds_output_start_repaint_loop(struct weston_output *output)
> +{
> + uint32_t msec;
> + struct timeval tv;
> +
> + gettimeofday(&tv, NULL);
> + msec = tv.tv_sec * 1000 + tv.tv_usec / 1000;
> + weston_output_finish_frame(output, msec);
> +}
> +
> +static int
> +freerds_output_repaint(struct weston_output *output_base, pixman_region32_t *damage)
> +{
> + struct freerds_output *output = container_of(output_base, struct freerds_output, base);
> + struct weston_compositor *ec = output->base.compositor;
> +
> + pixman_region32_union(&output->damagedRegion, &output->damagedRegion, damage);
> +
> + pixman_renderer_output_set_buffer(output_base, output->shadow_surface);
> + ec->renderer->repaint_output(&output->base, damage);
> +
> + if (!output->waitingVBlank && output->outputActive)
> + freerds_refresh_region(output->compositor, &output->damagedRegion);
> +
> + pixman_region32_subtract(&ec->primary_plane.damage, &ec->primary_plane.damage, damage);
> +
> + wl_event_source_timer_update(output->finish_frame_timer, 16);
> + return 0;
> +}
> +
> +static void
> +freerds_output_destroy(struct weston_output *output_base)
> +{
> + struct freerds_output *output = (struct freerds_output *)output_base;
> +
> + wl_event_source_remove(output->finish_frame_timer);
> + free(output);
> +}
> +
> +static int
> +finish_frame_handler(void *data)
> +{
> + freerds_output_start_repaint_loop(data);
> + return 1;
> +}
> +
> +static bool
> +freerds_update_shm(struct freerds_output *output, int width, int height) {
> + struct freerds_compositor *c = output->compositor;
> + if (output->shmid >= 0) {
> + /* cleanup the previous shared memory if there were one */
> + if (shmdt(output->buffer) < 0)
> + weston_log("error detaching segment 0x%x, error=%s", output->shmid, strerror(errno));
> + if (shmctl(output->shmid, IPC_RMID, 0) < 0)
> + weston_log("error removing shmId %d, error=%s", output->shmid, strerror(errno));
> +
> + output->shmid = -1;
> + output->buffer = 0;
> + c->rds_shared_fb.segmentId = -1;
> + }
> +
> + c->rds_shared_fb.segmentId = output->shmid = shmget(IPC_PRIVATE, width * height * 4,
> + IPC_CREAT | IPC_EXCL | S_IRUSR | S_IWUSR);
> + if (output->shmid < 0) {
> + weston_log("unable to create a SHM, error=%s\n", strerror(errno));
> + return false;
> + }
> +
> + output->buffer = shmat(output->shmid, 0, 0);
> + if (!output->buffer) {
> + weston_log("unable to attach to SHM, error=%s\n", strerror(errno));
> + if (shmctl(output->shmid, IPC_RMID, 0) < 0)
> + weston_log("error removing shmId %d, error=%s", output->shmid, strerror(errno));
> + return false;
> + }
> + return true;
> +}
> +
> +
> +static struct weston_mode *
> +freerds_insert_new_mode(struct weston_output *output, int width, int height, int rate) {
> + struct weston_mode *ret;
> + ret = zalloc(sizeof *ret);
> + if(!ret)
> + return ret;
> + ret->width = width;
> + ret->height = height;
> + ret->refresh = rate;
> + wl_list_insert(&output->mode_list, &ret->link);
> + return ret;
> +}
> +
> +static struct weston_mode *
> +ensure_matching_mode(struct weston_output *output, struct weston_mode *target) {
> + struct weston_mode *local;
> +
> + wl_list_for_each(local, &output->mode_list, link) {
> + if((local->width == target->width) && (local->height == target->height))
> + return local;
> + }
> +
> + return freerds_insert_new_mode(output, target->width, target->height, FREERDS_MODE_FPS);
> +}
> +
> +static int
> +freerds_send_shared_framebuffer(struct freerds_compositor *c) {
> + Stream_SetPosition(c->out_stream, 0);
> + freerds_server_message_write(c->out_stream, (RDS_MSG_COMMON *)&c->rds_shared_fb);
> + Stream_SealLength(c->out_stream);
> +
> + return freerds_send_stream(c, c->out_stream);
> +}
> +
> +
> +
> +static int
> +freerds_switch_mode(struct weston_output *output, struct weston_mode *mode)
> +{
> + struct weston_mode *localMode;
> + pixman_image_t *new_shadow_buffer;
> + struct freerds_output *rdsOutput = container_of(output, struct freerds_output, base);
> + struct freerds_compositor *c = rdsOutput->compositor;
> +
> + localMode = ensure_matching_mode(output, mode);
> + if (!localMode) {
> + weston_log("unable to ensure the requested mode\n");
> + return -ENOMEM;
> + }
> +
> + if(localMode == output->current_mode)
> + return 0;
> +
> + output->current_mode->flags &= ~WL_OUTPUT_MODE_CURRENT;
> +
> + output->current_mode = localMode;
> + output->current_mode->flags |= WL_OUTPUT_MODE_CURRENT;
> +
> + pixman_renderer_output_destroy(output);
> + pixman_renderer_output_create(output);
> +
> + new_shadow_buffer = pixman_image_create_bits(PIXMAN_x8r8g8b8, mode->width,
> + mode->height, 0, mode->width * 4);
> + pixman_image_composite32(PIXMAN_OP_SRC, rdsOutput->shadow_surface, 0,
> + new_shadow_buffer, 0, 0,
> + 0, 0,
> + 0, 0, mode->width, mode->height
> + );
> +
> + pixman_image_unref(rdsOutput->shadow_surface);
> + rdsOutput->shadow_surface = new_shadow_buffer;
> +
> + c->rds_shared_fb.width = mode->width;
> + c->rds_shared_fb.height = mode->height;
> + c->rds_shared_fb.scanline = mode->width * 4;
> +
> + if (c->client_fd >= 0) {
> + // we have a connected peer so we have to inform it of the new configuration
> + if (!freerds_update_shm(rdsOutput, mode->width, mode->height)) {
> + weston_log("unable to change the SHM configuration\n");
> + return -1;
> + }
> +
> + freerds_send_shared_framebuffer(c);
> + }
> + return 0;
> +}
> +
> +struct freerds_simple_mode {
> + int width;
> + int height;
> +};
> +static struct freerds_simple_mode standard_modes[] = {
> + {640, 480},
> + {800, 600},
> + {1024, 768},
> + {1280, 1024},
> +
> + {0, 0}, /* /!\ the last one /!\ */
> +};
> +
> +
> +static int
> +freerds_compositor_create_output(struct freerds_compositor *c, int width, int height)
> +{
> + int i;
> + struct freerds_output *output;
> + struct wl_event_loop *loop;
> + struct weston_mode *currentMode, *next, *extraMode;
> + RDS_MSG_SHARED_FRAMEBUFFER *shared_fb;
> + RDS_MSG_PAINT_RECT *rect;
> + RDS_MSG_SET_SYSTEM_POINTER *system_pointer;
> +
> + output = zalloc(sizeof *output);
> + if (output == NULL)
> + return -1;
> +
> + wl_list_init(&output->base.mode_list);
> +
> + currentMode = freerds_insert_new_mode(&output->base, width, height, FREERDS_MODE_FPS);
> + if(!currentMode)
> + goto out_free_output;
> + currentMode->flags = WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED;
> +
> + for (i = 0; standard_modes[i].width; i++) {
> + if (standard_modes[i].width == width && standard_modes[i].height == height)
> + continue;
> +
> + extraMode = freerds_insert_new_mode(&output->base,
> + standard_modes[i].width,
> + standard_modes[i].height, FREERDS_MODE_FPS
> + );
> + if(!extraMode)
> + goto out_output;
> + }
> +
> + output->base.current_mode = output->base.native_mode = currentMode;
> + weston_output_init(&output->base, &c->base, 0, 0, width, height,
> + WL_OUTPUT_TRANSFORM_NORMAL, 1);
> +
> + output->base.make = "weston";
> + output->base.model = "freerds";
> +
> + output->shmid = -1;
> + output->buffer = 0;
> +
> + shared_fb = &c->rds_shared_fb;
> + shared_fb->type = RDS_SERVER_SHARED_FRAMEBUFFER;
> + shared_fb->width = width;
> + shared_fb->height = height;
> + shared_fb->bitsPerPixel = 32;
> + shared_fb->bytesPerPixel = 4;
> + shared_fb->attach = 1;
> + shared_fb->scanline = width * 4;
> +
> + rect = &c->rds_paint_rect;
> + rect->type = RDS_SERVER_PAINT_RECT;
> + rect->fbSegmentId = output->shmid;
> + rect->bitmapData = NULL;
> + rect->bitmapDataLength = 0;
> + rect->framebuffer = 0;
> +
> + system_pointer = &c->rds_set_system_pointer;
> + system_pointer->type = RDS_SERVER_SET_SYSTEM_POINTER;
> + system_pointer->ptrType = SYSPTR_NULL;
> +
> + c->rds_begin_update.type = RDS_SERVER_BEGIN_UPDATE;
> + c->rds_end_update.type = RDS_SERVER_END_UPDATE;
> +
> + output->waitingVBlank = true;
> + output->outputActive = true;
> +
> + pixman_region32_init(&output->damagedRegion);
> + output->shadow_surface = pixman_image_create_bits(PIXMAN_a8r8g8b8,
> + width, height,
> + NULL,
> + width * 4);
> + if (output->shadow_surface == NULL) {
> + weston_log("Failed to create surface for frame buffer.\n");
> + goto out_output;
> + }
> +
> + if (pixman_renderer_output_create(&output->base) < 0)
> + goto out_shadow_surface;
> +
> + loop = wl_display_get_event_loop(c->base.wl_display);
> + output->finish_frame_timer = wl_event_loop_add_timer(loop, finish_frame_handler, output);
> +
> + output->base.start_repaint_loop = freerds_output_start_repaint_loop;
> + output->base.repaint = freerds_output_repaint;
> + output->base.destroy = freerds_output_destroy;
> + output->base.assign_planes = NULL;
> + output->base.set_backlight = NULL;
> + output->base.set_dpms = NULL;
> + output->base.switch_mode = freerds_switch_mode;
> + output->compositor = c;
> + c->output = output;
> +
> + wl_list_insert(c->base.output_list.prev, &output->base.link);
> + return 0;
> +
> +out_shadow_surface:
> + pixman_image_unref(output->shadow_surface);
> +out_output:
> + weston_output_destroy(&output->base);
> +
> + wl_list_for_each_safe(currentMode, next, &output->base.mode_list, link)
> + free(currentMode);
> +out_free_output:
> + free(output);
> + return -1;
> +}
> +
> +static void
> +freerds_restore(struct weston_compositor *ec)
> +{
> +}
> +
> +static void
> +freerds_destroy(struct weston_compositor *ec)
> +{
> + ec->renderer->destroy(ec);
> + weston_compositor_shutdown(ec);
> +
> + free(ec);
> +}
> +
> +
> +static void
> +freerds_mouse_event(struct freerds_compositor *c, DWORD x, DWORD y, DWORD flags) {
> + wl_fixed_t wl_x, wl_y, axis;
> + uint32_t button = 0;
> +
> + //weston_log("mouse event: x=%ld y=%ld flags=0x%x\n", x, y, flags);
> + if (flags & PTR_FLAGS_MOVE) {
> + if((int)x < c->output->base.width && (int)y < c->output->base.height) {
> + wl_x = wl_fixed_from_int((int)x);
> + wl_y = wl_fixed_from_int((int)y);
> + notify_motion_absolute(&c->seat, weston_compositor_get_time(), wl_x, wl_y);
> + }
> + }
> +
> + if (flags & PTR_FLAGS_BUTTON1)
> + button = BTN_LEFT;
> + else if (flags & PTR_FLAGS_BUTTON2)
> + button = BTN_RIGHT;
> + else if (flags & PTR_FLAGS_BUTTON3)
> + button = BTN_MIDDLE;
> +
> + if(button) {
> + notify_button(&c->seat, weston_compositor_get_time(), button,
> + (flags & PTR_FLAGS_DOWN) ? WL_POINTER_BUTTON_STATE_PRESSED : WL_POINTER_BUTTON_STATE_RELEASED
> + );
> + }
> +
> + if (flags & PTR_FLAGS_WHEEL) {
> + /* DEFAULT_AXIS_STEP_DISTANCE is stolen from compositor-x11.c
> + * The RDP specs says the lower bits of flags contains the "the number of rotation
> + * units the mouse wheel was rotated".
> + *
> + * http://blogs.msdn.com/b/oldnewthing/archive/2013/01/23/10387366.aspx explains the 120 value
> + */
> + axis = (DEFAULT_AXIS_STEP_DISTANCE * (flags & 0xff)) / 120;
> + if (flags & PTR_FLAGS_WHEEL_NEGATIVE)
> + axis = -axis;
> +
> + notify_axis(&c->seat, weston_compositor_get_time(),
> + WL_POINTER_AXIS_VERTICAL_SCROLL,
> + axis);
> + }
> +}
> +
> +extern DWORD KEYCODE_TO_VKCODE_EVDEV[];
> +static uint32_t vk_to_keycode[256];
> +static void
> +init_vk_translator(void)
> +{
> + int i;
> +
> + memset(vk_to_keycode, 0, sizeof(vk_to_keycode));
> + for(i = 0; i < 256; i++)
> + vk_to_keycode[KEYCODE_TO_VKCODE_EVDEV[i] & 0xff] = i-8;
> +}
> +
> +
> +static void
> +freerds_scancode_keyboard_event(struct freerds_compositor *c, UINT32 flags, UINT32 code,
> + UINT32 keyboardType)
> +{
> + uint32_t vk_code, full_code, key_code;
> + enum wl_keyboard_key_state keyState;
> + int notify = 0;
> +
> + //weston_log("code=%d flags=0x%x keyb=%d\n", code, flags, keyboardType);
> + if (flags & KBD_FLAGS_DOWN) {
> + keyState = WL_KEYBOARD_KEY_STATE_PRESSED;
> + notify = 1;
> + } else if (flags & KBD_FLAGS_RELEASE) {
> + keyState = WL_KEYBOARD_KEY_STATE_RELEASED;
> + notify = 1;
> + }
> +
> + if(notify) {
> + full_code = code;
> + if(flags & KBD_FLAGS_EXTENDED)
> + full_code |= KBD_FLAGS_EXTENDED;
> +
> + vk_code = GetVirtualKeyCodeFromVirtualScanCode(full_code, keyboardType);
> + if(vk_code > 0xff) {
> + weston_log("invalid vk_code %x", vk_code);
> + return;
> + }
> + key_code = vk_to_keycode[vk_code];
> +
> + /*weston_log("code=%x ext=%d vk_code=%x scan_code=%x\n", code, (flags & KBD_FLAGS_EXTENDED) ? 1 : 0,
> + vk_code, scan_code);*/
> + notify_key(&c->seat, weston_compositor_get_time(), key_code, keyState,
> + STATE_UPDATE_AUTOMATIC);
> + }
> +}
> +
> +struct rdp_to_xkb_keyboard_layout {
> + UINT32 rdpLayoutCode;
> + char *xkbLayout;
> +};
> +
> +
> +/* table reversed from
> + https://github.com/awakecoding/FreeRDP/blob/master/libfreerdp/locale/xkb_layout_ids.c#L811 */
> +static
> +struct rdp_to_xkb_keyboard_layout rdp_keyboards[] = {
> + {KBD_ARABIC_101, "ara"},
> + {KBD_BULGARIAN, "bg"},
> + {KBD_CHINESE_TRADITIONAL_US, 0},
> + {KBD_CZECH, "cz"},
> + {KBD_DANISH, "dk"},
> + {KBD_GERMAN, "de"},
> + {KBD_GREEK, "gr"},
> + {KBD_US, "us"},
> + {KBD_SPANISH, "es"},
> + {KBD_FINNISH, "fi"},
> + {KBD_FRENCH, "fr"},
> + {KBD_HEBREW, "il"},
> + {KBD_HUNGARIAN, "hu"},
> + {KBD_ICELANDIC, "is"},
> + {KBD_ITALIAN, "it"},
> + {KBD_JAPANESE, "jp"},
> + {KBD_KOREAN, "kr"},
> + {KBD_DUTCH, "nl"},
> + {KBD_NORWEGIAN, "no"},
> + {KBD_POLISH_PROGRAMMERS, 0},
> +// {KBD_PORTUGUESE_BRAZILIAN_ABN0416, 0},
> + {KBD_ROMANIAN, 0},
> + {KBD_RUSSIAN, "ru"},
> + {KBD_CROATIAN, 0},
> + {KBD_SLOVAK, 0},
> + {KBD_ALBANIAN, 0},
> + {KBD_SWEDISH, 0},
> + {KBD_THAI_KEDMANEE, 0},
> + {KBD_TURKISH_Q, 0},
> + {KBD_URDU, 0},
> + {KBD_UKRAINIAN, 0},
> + {KBD_BELARUSIAN, 0},
> + {KBD_SLOVENIAN, 0},
> + {KBD_ESTONIAN, "ee"},
> + {KBD_LATVIAN, 0},
> + {KBD_LITHUANIAN_IBM, 0},
> + {KBD_FARSI, 0},
> + {KBD_VIETNAMESE, 0},
> + {KBD_ARMENIAN_EASTERN, 0},
> + {KBD_AZERI_LATIN, 0},
> + {KBD_FYRO_MACEDONIAN, 0},
> + {KBD_GEORGIAN, 0},
> + {KBD_FAEROESE, 0},
> + {KBD_DEVANAGARI_INSCRIPT, 0},
> + {KBD_MALTESE_47_KEY, 0},
> + {KBD_NORWEGIAN_WITH_SAMI, 0},
> + {KBD_KAZAKH, 0},
> + {KBD_KYRGYZ_CYRILLIC, 0},
> + {KBD_TATAR, 0},
> + {KBD_BENGALI, 0},
> + {KBD_PUNJABI, 0},
> + {KBD_GUJARATI, 0},
> + {KBD_TAMIL, 0},
> + {KBD_TELUGU, 0},
> + {KBD_KANNADA, 0},
> + {KBD_MALAYALAM, 0},
> + {KBD_MARATHI, 0},
> + {KBD_MONGOLIAN_CYRILLIC, 0},
> + {KBD_UNITED_KINGDOM_EXTENDED, 0},
> + {KBD_SYRIAC, 0},
> + {KBD_NEPALI, 0},
> + {KBD_PASHTO, 0},
> + {KBD_DIVEHI_PHONETIC, 0},
> + {KBD_LUXEMBOURGISH, 0},
> + {KBD_MAORI, 0},
> + {KBD_CHINESE_SIMPLIFIED_US, 0},
> + {KBD_SWISS_GERMAN, 0},
> + {KBD_UNITED_KINGDOM, 0},
> + {KBD_LATIN_AMERICAN, 0},
> + {KBD_BELGIAN_FRENCH, 0},
> + {KBD_BELGIAN_PERIOD, 0},
> + {KBD_PORTUGUESE, 0},
> + {KBD_SERBIAN_LATIN, 0},
> + {KBD_AZERI_CYRILLIC, 0},
> + {KBD_SWEDISH_WITH_SAMI, 0},
> + {KBD_UZBEK_CYRILLIC, 0},
> + {KBD_INUKTITUT_LATIN, 0},
> + {KBD_CANADIAN_FRENCH_LEGACY, "fr-legacy"},
> + {KBD_SERBIAN_CYRILLIC, 0},
> + {KBD_CANADIAN_FRENCH, 0},
> + {KBD_SWISS_FRENCH, "ch"},
> + {KBD_BOSNIAN, "unicode"},
> + {KBD_IRISH, 0},
> + {KBD_BOSNIAN_CYRILLIC, 0},
> +
> + {0x00000000, 0},
> +};
> +
> +/* taken from 2.2.7.1.6 Input Capability Set (TS_INPUT_CAPABILITYSET) */
> +static char *rdp_keyboard_types[] = {
> + "", /* 0: unused */
> + "", /* 1: IBM PC/XT or compatible (83-key) keyboard */
> + "", /* 2: Olivetti "ICO" (102-key) keyboard */
> + "", /* 3: IBM PC/AT (84-key) or similar keyboard */
> + "pc105",/* 4: IBM enhanced (101- or 102-key) keyboard */
> + "", /* 5: Nokia 1050 and similar keyboards */
> + "", /* 6: Nokia 9140 and similar keyboards */
> + "" /* 7: Japanese keyboard */
> +};
> +
> +static struct xkb_keymap *
> +freerds_retrieve_keymap(UINT32 rdpKbLayout, UINT32 rdpKbType) {
> + struct xkb_context *xkbContext;
> + struct xkb_rule_names xkbRuleNames;
> + struct xkb_keymap *keymap;
> + int i;
> +
> + memset(&xkbRuleNames, 0, sizeof(xkbRuleNames));
> + if(rdpKbType <= 7 && rdpKbType > 0)
> + xkbRuleNames.model = rdp_keyboard_types[rdpKbType];
> + else
> + xkbRuleNames.model = "pc105";
> +
> + for(i = 0; rdp_keyboards[i].rdpLayoutCode; i++) {
> + if(rdp_keyboards[i].rdpLayoutCode == rdpKbLayout) {
> + xkbRuleNames.layout = rdp_keyboards[i].xkbLayout;
> + break;
> + }
> + }
> +
> + keymap = NULL;
> + if(xkbRuleNames.layout) {
> + xkbContext = xkb_context_new(0);
> + if(!xkbContext) {
> + weston_log("unable to create a xkb_context\n");
> + return NULL;
> + }
> +
> + weston_log("looking for keymap %s\n", xkbRuleNames.layout);
> + keymap = xkb_keymap_new_from_names(xkbContext, &xkbRuleNames, 0);
> + }
> + return keymap;
> +}
> +
> +static void
> +freerds_configure_keyboard(struct freerds_compositor *c, UINT32 layout, UINT32 keyboard_type) {
> + if (c->keyboard_layout == layout && c->keyboard_type == keyboard_type)
> + return;
> +
> + weston_seat_init_keyboard(&c->seat,
> + freerds_retrieve_keymap(layout, keyboard_type)
> + );
> +
> + c->keyboard_layout = layout;
> + c->keyboard_type = keyboard_type;
> +}
> +
> +
> +static int
> +freerds_send_disable_pointer(struct freerds_compositor *c) {
> + Stream_SetPosition(c->out_stream, 0);
> + freerds_server_message_write(c->out_stream, (RDS_MSG_COMMON *)&c->rds_set_system_pointer);
> + Stream_SealLength(c->out_stream);
> + return freerds_send_stream(c, c->out_stream);
> +}
> +
> +
> +static int
> +freerds_treat_message(struct freerds_compositor *c, wStream *s) {
> + RDS_MSG_CAPABILITIES capabilities;
> + RDS_MSG_SUPPRESS_OUTPUT suppress_output;
> + RDS_MSG_SCANCODE_KEYBOARD_EVENT *scancode;
> + RECTANGLE_16 *rect16;
> + unsigned int i;
> + struct weston_mode *currentMode, targetMode;
> +
> + //weston_log("message type %d\n", c->header_common.type);
> + switch (c->header_common.type) {
> + case RDS_CLIENT_CAPABILITIES:
> + if (freerds_read_capabilities(s, &capabilities) < 0) {
> + weston_log("invalid capabilities message\n");
> + return -1;
> + }
> + weston_seat_init(&c->seat, &c->base, "freerds");
> + weston_seat_init_pointer(&c->seat);
> +
> + freerds_configure_keyboard(c, capabilities.KeyboardLayout, capabilities.KeyboardSubType);
> + c->have_seat = true;
> +
> + currentMode = c->output->base.current_mode;
> + if (capabilities.DesktopWidth != currentMode->width || capabilities.DesktopHeight != currentMode->height) {
> + // mode switching will send the shared framebuffer
> + targetMode.width = capabilities.DesktopWidth;
> + targetMode.height = capabilities.DesktopHeight;
> + weston_output_switch_mode(&c->output->base, &targetMode, 1, WESTON_MODE_SWITCH_SET_NATIVE);
> + } else {
> + if (c->output->shmid < 0)
> + freerds_update_shm(c->output, capabilities.DesktopWidth, capabilities.DesktopHeight);
> + if (freerds_send_shared_framebuffer(c) < 0)
> + weston_log("unable to send shared framebuffer, errno=%d\n", errno);
> + }
> +
> + if (freerds_send_disable_pointer(c) < 0)
> + weston_log("unable to disable client-side pointer, errno=%d\n", errno);
> + break;
> +
> + case RDS_CLIENT_MOUSE_EVENT:
> + if (freerds_read_mouse_event(s, &c->rds_mouse_event) < 0) {
> + weston_log("invalid mouse event message\n");
> + return -1;
> + }
> + freerds_mouse_event(c, c->rds_mouse_event.x, c->rds_mouse_event.y, c->rds_mouse_event.flags);
> + break;
> +
> + case RDS_CLIENT_SCANCODE_KEYBOARD_EVENT:
> + scancode = &c->rds_scancode;
> + if (freerds_read_scancode_keyboard_event(s, scancode) < 0) {
> + weston_log("invalid scancode keyboard event message\n");
> + return -1;
> + }
> + freerds_scancode_keyboard_event(c, scancode->flags, scancode->code, scancode->keyboardType);
> + break;
> +
> + case RDS_CLIENT_VBLANK_EVENT:
> + c->output->waitingVBlank = false;
> + if (c->output->outputActive && pixman_region32_not_empty(&c->output->damagedRegion))
> + freerds_refresh_region(c, &c->output->damagedRegion);
> + break;
> +
> + case RDS_CLIENT_REFRESH_RECT:
> + if (freerds_read_refresh_rect(s, &c->rds_refresh_rect) < 0) {
> + weston_log("invalid refresh_rect message\n");
> + return -1;
> + }
> +
> + rect16 = c->rds_refresh_rect.areasToRefresh;
> + for (i = 0; i < c->rds_refresh_rect.numberOfAreas; i++, rect16++) {
> + pixman_region32_union_rect(&c->output->damagedRegion, &c->output->damagedRegion,
> + rect16->left, rect16->top,
> + (rect16->right - rect16->left),
> + (rect16->bottom - rect16->top));
> + }
> +
> + if (!c->output->waitingVBlank && c->output->outputActive)
> + freerds_refresh_region(c, &c->output->damagedRegion);
> + break;
> +
> + case RDS_CLIENT_SUPPRESS_OUTPUT:
> + if (freerds_read_suppress_output(s, &suppress_output) < 0) {
> + weston_log("invalid suppress_output message\n");
> + return -1;
> + }
> +
> + c->output->outputActive = suppress_output.activeOutput;
> + // TODO: freeze the compositor when output is suppressed ?
> + break;
> + case RDS_CLIENT_SYNCHRONIZE_KEYBOARD_EVENT:
> + // TODO: ignored for now but we should set the xkb status
> + break;
> + case RDS_CLIENT_VIRTUAL_KEYBOARD_EVENT:
> + case RDS_CLIENT_UNICODE_KEYBOARD_EVENT:
> + case RDS_CLIENT_EXTENDED_MOUSE_EVENT:
> + default:
> + weston_log("not handled yet, %d\n", c->header_common.type);
> + break;
> + }
> + return 0;
> +}
> +
> +static void
> +freerds_kill_client(struct freerds_compositor *c) {
> + wl_event_source_remove(c->client_event_source);
> + c->client_event_source = 0;
> + if (c->have_seat) {
> + weston_seat_release_pointer(&c->seat);
> + weston_seat_release_keyboard(&c->seat);
> + weston_seat_release(&c->seat);
> + }
> +
> + close(c->client_fd);
> + c->client_fd = -1;
> +
> + c->expected_bytes = FREERDS_COMMON_LENGTH;
> + c->streamState = STREAM_WAITING_COMMON_HEADER;
> + c->keyboard_layout = 0;
> + c->keyboard_type = 0;
> + c->have_seat = false;
> + c->output->waitingVBlank = true;
> + c->output->outputActive = true;
> +}
> +
> +static int
> +freerds_client_activity(int fd, uint32_t mask, void *data) {
> + struct freerds_compositor *c = (struct freerds_compositor *)data;
> + int ret;
> +
> + if (!(mask & WL_EVENT_READABLE))
> + return 0;
> +
> + ret = read(fd, Stream_Pointer(c->in_stream), c->expected_bytes);
> + if (ret <= 0) {
> + weston_log("connection closed fd=%d client_fd=%d\n", fd, c->client_fd);
> + freerds_kill_client(c);
> + return 0;
> + }
> +
> + Stream_Seek(c->in_stream, ret);
> + c->expected_bytes -= ret;
> +
> + if (c->expected_bytes)
> + return 0;
> +
> + Stream_SealLength(c->in_stream);
> + Stream_SetPosition(c->in_stream, 0);
> +
> + switch (c->streamState) {
> + case STREAM_WAITING_COMMON_HEADER:
> + //weston_log("reading %d for common header\n", ret);
> + freerds_read_common_header(c->in_stream, &c->header_common);
> + if (c->header_common.length > FREERDS_COMMON_LENGTH) {
> + c->streamState = STREAM_WAITING_DATA;
> + c->expected_bytes = c->header_common.length - FREERDS_COMMON_LENGTH;
> + Stream_EnsureCapacity(c->in_stream, c->header_common.length);
> + Stream_SetPosition(c->in_stream, FREERDS_COMMON_LENGTH);
> + } else {
> + freerds_treat_message(c, c->in_stream);
> +
> + Stream_SetPosition(c->in_stream, 0);
> + c->expected_bytes = FREERDS_COMMON_LENGTH;
> + }
> + break;
> + case STREAM_WAITING_DATA:
> + Stream_SetPosition(c->in_stream, FREERDS_COMMON_LENGTH);
> + freerds_treat_message(c, c->in_stream);
> +
> + Stream_SetPosition(c->in_stream, 0);
> + c->streamState = STREAM_WAITING_COMMON_HEADER;
> + c->expected_bytes = FREERDS_COMMON_LENGTH;
> + break;
> + default:
> + weston_log("unknown module protocol state\n");
> + return -1;
> + }
> + return 0;
> +}
> +
> +static int
> +freerds_named_pipe_activity(int fd, uint32_t mask, void *data) {
> + struct freerds_compositor *c = (struct freerds_compositor *)data;
> + struct wl_event_loop *loop;
> +
> + if (c->client_fd != -1) {
> + weston_log("dropping existing client");
> + freerds_kill_client(c);
> + }
> +
> + c->client_fd = accept(c->listening_fd, 0, 0);
> + if (c->client_fd >= 0) {
> + loop = wl_display_get_event_loop(c->base.wl_display);
> + c->client_event_source = wl_event_loop_add_fd(loop, c->client_fd, WL_EVENT_READABLE,
> + freerds_client_activity, c);
> + }
> + return 0;
> +}
> +
> +
> +static struct weston_compositor *
> +freerds_compositor_create(struct wl_display *display,
> + struct freerds_compositor_config *config,
> + int *argc, char *argv[], struct weston_config *wconfig)
> +{
> + struct freerds_compositor *c;
> + struct wl_event_loop *loop;
> + struct sockaddr_un remote;
> + int len;
> +
> + c = zalloc(sizeof *c);
> + if (c == NULL)
> + return NULL;
> +
> + if (weston_compositor_init(&c->base, display, argc, argv, wconfig) < 0)
> + goto err_free;
> +
> + c->base.destroy = freerds_destroy;
> + c->base.restore = freerds_restore;
> + c->client_fd = -1;
> +
> + if (pixman_renderer_init(&c->base) < 0)
> + goto err_compositor;
> +
> + if (freerds_compositor_create_output(c, config->width, config->height) < 0)
> + goto err_compositor;
> +
> + if (!config->freerds_named_pipe) {
> + weston_log("no socket path given");
> + goto err_output;
> + }
> +
> + c->listening_fd = socket(AF_UNIX, SOCK_STREAM, 0);
> + if (c->listening_fd < 0) {
> + weston_log("unable to create the listening socket\n");
> + goto err_output;
> + }
> +
> + memset(&remote, 0, sizeof(remote));
> + remote.sun_family = AF_UNIX;
> + strcpy(remote.sun_path, config->freerds_named_pipe);
> + len = strlen(remote.sun_path) + sizeof(remote.sun_family);
> + if (bind(c->listening_fd, (struct sockaddr *)&remote, len) < 0) {
> + weston_log("unable to bind the named pipe, errno=%d path=%s\n",
> + errno, config->freerds_named_pipe);
> + goto err_socket;
> + }
> +
> + if (!listen(c->listening_fd, 1) < 0) {
> + weston_log("unable to listen on the named pipe, errno=%d path=%s\n",
> + errno, config->freerds_named_pipe);
> + goto err_socket;
> + }
> +
> + c->in_stream = Stream_New(NULL, FREERDS_COMMON_LENGTH);
> + c->out_stream = Stream_New(NULL, 65536);
> + c->expected_bytes = FREERDS_COMMON_LENGTH;
> + c->streamState = STREAM_WAITING_COMMON_HEADER;
> + loop = wl_display_get_event_loop(c->base.wl_display);
> + c->server_event_source = wl_event_loop_add_fd(loop, c->listening_fd, WL_EVENT_READABLE,
> + freerds_named_pipe_activity, c);
> +
> + return &c->base;
> +
> +err_socket:
> + close(c->listening_fd);
> +err_output:
> + weston_output_destroy(&c->output->base);
> +err_compositor:
> + weston_compositor_shutdown(&c->base);
> +err_free:
> + free(c);
> + return NULL;
> +}
> +
> +WL_EXPORT struct weston_compositor *
> +backend_init(struct wl_display *display, int *argc, char *argv[],
> + struct weston_config *wconfig)
> +{
> + struct freerds_compositor_config config;
> + freerds_compositor_config_init(&config);
> + int major, minor, revision;
> +
> + freerdp_get_version(&major, &minor, &revision);
> + weston_log("using FreeRDP version %d.%d.%d\n", major, minor, revision);
> +
> + init_vk_translator();
> +
> + const struct weston_option freerds_options[] = {
> + { WESTON_OPTION_STRING, "freerds-pipe", 0, &config.freerds_named_pipe },
> + { WESTON_OPTION_UNSIGNED_INTEGER, "width", 0, &config.width },
> + { WESTON_OPTION_UNSIGNED_INTEGER, "height", 0, &config.height },
> + };
> +
> + parse_options(freerds_options, ARRAY_LENGTH(freerds_options), argc, argv);
> + return freerds_compositor_create(display, &config, argc, argv, wconfig);
> +}
> --
> 1.8.1.2
>
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