xrdp_encoder: developer checkin

xrdp/Makefile.am

@@ -45,7 +45,8 @@ xrdp_SOURCES = \
   xrdp_painter.c \
   xrdp_process.c \
   xrdp_region.c \
-  xrdp_wm.c
+  xrdp_wm.c \
+  xrdp_encoder.c
 
 xrdp_LDADD = \
   $(top_builddir)/common/libcommon.la \
@@ -70,4 +71,3 @@ xrdppkgdata_DATA = \
   sans-10.fv1 \
   cursor0.cur \
   cursor1.cur
-

xrdp/xrdp_encoder.c

@@ -0,0 +1,159 @@
+/**
+ * xrdp: A Remote Desktop Protocol server.
+ *
+ * Copyright (C) Laxmikant Rashinkar 2004-2014
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Encoder
+ */
+
+#include "xrdp_encoder.h"
+#include "xrdp.h"
+#include "thread_calls.h"
+#include "fifo.h"
+
+/**
+ * Init encoder
+ * 
+ * @return 0 on success, -1 on failure
+ *****************************************************************************/ 
+ 
+int init_xrdp_encoder(struct xrdp_mm *mm)
+{
+    char buf[1024];
+    
+    g_writeln("xrdp_encoder.c: initing encoder");
+        
+    if (!mm)
+        return -1;
+        
+    /* save mm so thread can access it */
+    self = mm;
+    
+    /* setup required FIFOs */
+    self->fifo_to_proc = fifo_create();
+    self->fifo_processed = fifo_create();
+    self->mutex = tc_mutex_create();
+    
+    /* setup wait objects for signalling */
+    g_snprintf(buf, 1024, "xrdp_encoder_%8.8x", g_getpid());
+    self->xrdp_encoder_event = g_create_wait_obj(buf);
+    
+    /* create thread to process messages */
+    tc_thread_create(proc_enc_msg, 0);
+    
+    return 0;
+}
+
+/**
+ * Deinit xrdp encoder
+ *****************************************************************************/
+ 
+void deinit_xrdp_encoder()
+{
+    XRDP_ENC_DATA *enc;
+    FIFO          *fifo;
+    
+    g_writeln("xrdp_encoder.c: deiniting encoder");
+    
+    if (!self)
+        return;
+
+    /* destroy wait objects used for signalling */
+    g_delete_wait_obj(self->xrdp_encoder_event);
+    
+    /* cleanup fifo_to_proc */
+    fifo = self->fifo_to_proc;
+    if (fifo)
+    {
+        while (!fifo_is_empty(fifo))
+        {
+            enc = fifo_remove_item(fifo);
+            if (!enc)
+                continue;
+                
+            g_free(enc->drects);
+            g_free(enc->crects);
+            g_free(enc);
+        }
+        
+        fifo_delete(fifo);
+    }
+    
+    /* cleanup fifo_processed */
+    fifo = self->fifo_processed;
+    if (fifo)
+    {
+        while (!fifo_is_empty(fifo))
+        {
+            enc = fifo_remove_item(fifo);
+            if (!enc)
+                continue;
+                
+            g_free(enc->drects);
+            g_free(enc->crects);
+            g_free(enc);
+        }
+        
+        fifo_delete(fifo);
+    }    
+}
+
+void *proc_enc_msg(void *arg)
+{
+    XRDP_ENC_DATA *enc;
+    FIFO          *fifo_to_proc; 
+    FIFO          *fifo_processed; 
+    tbus           mutex;
+    tbus           event;
+    
+    g_writeln("xrdp_encoder.c: process_enc_msg thread is running");
+    
+    fifo_to_proc = self->fifo_to_proc;
+    fifo_processed = self->fifo_processed;
+    mutex = self->mutex;
+    event = self->xrdp_encoder_event;
+    
+    while (1)
+    {
+        /* get next msg */
+        tc_mutex_lock(mutex);
+        enc = fifo_remove_item(fifo_to_proc);
+        tc_mutex_unlock(mutex);
+        
+        /* if no msg available, wait for signal */
+        if (!enc)
+        {
+            g_writeln("###### JAY_TODO: waiting for msg....");
+            g_tcp_can_recv(event, 1000);
+            g_reset_wait_obj(event);
+            continue;
+        }
+        
+        /* process msg in enc obj */
+        g_writeln("###### JAY_TODO: got msg....");
+        /* JAY_TODO */
+        
+        /* done with msg */
+        tc_mutex_lock(mutex);
+        fifo_add_item(fifo_processed, enc);
+        tc_mutex_unlock(mutex);
+        
+        /* signal completion */
+        g_set_wait_obj(event);
+        
+    } /* end while (1) */
+    
+    return 0;
+}

xrdp/xrdp_encoder.h

@@ -0,0 +1,10 @@
+#ifndef _XRDP_ENCODER_H
+#define _XRDP_ENCODER_H
+
+struct xrdp_mm *self;
+
+int   init_xrdp_encoder(struct xrdp_mm *mm);
+void  deinit_xrdp_encoder();
+void *proc_enc_msg(void *arg);
+
+#endif

xrdp/xrdp_mm.c

@@ -40,6 +40,10 @@ xrdp_mm_create(struct xrdp_wm *owner)
     self->login_names->auto_free = 1;
     self->login_values = list_create();
     self->login_values->auto_free = 1;
+    
+    /* setup thread to handle codec mode messages */
+    init_xrdp_encoder(self);
+    
     return self;
 }
 
@@ -1875,6 +1879,11 @@ xrdp_mm_get_wait_objs(struct xrdp_mm *self,
         }
     }
 
+    if (self->in_codec_mode)
+    {
+        read_objs[(*rcount)++] = self->xrdp_encoder_event;
+    }
+    
     return rv;
 }
 
@@ -1931,6 +1940,35 @@ xrdp_mm_check_wait_objs(struct xrdp_mm *self)
         self->delete_chan_trans = 0;
     }
 
+    if (self->in_codec_mode)
+    {
+        XRDP_ENC_DATA *enc;
+        
+        if (!g_is_wait_obj_set(self->xrdp_encoder_event))
+            return rv;
+            
+        g_reset_wait_obj(self->xrdp_encoder_event);
+        tc_mutex_lock(self->mutex);
+        
+        while ((enc = fifo_remove_item(self->fifo_processed)) != 0)
+        {
+            tc_mutex_unlock(self->mutex);
+            
+            /* do something with msg */
+            
+            /* JAY_TODO */
+            
+            /* free enc */
+            g_free(enc->drects);
+            g_free(enc->crects);
+            g_free(enc);   
+                         
+            tc_mutex_lock(self->mutex);
+        }
+        
+        tc_mutex_unlock(self->mutex);
+    }
+    
     return rv;
 }
 
@@ -2140,17 +2178,68 @@ server_composite(struct xrdp_mod* mod, int srcidx, int srcformat,
 /*****************************************************************************/
 int DEFAULT_CC
 server_paint_rects(struct xrdp_mod* mod, int num_drects, short *drects,
-                   int num_crects, short *crects,
+                   int num_crects, short *crects, char *data, int width, 
-                   char *data, int width, int height, int flags)
+                   int height, int flags)
 {
     struct xrdp_wm* wm;
+    struct xrdp_mm* mm;
     struct xrdp_painter* p;
     struct xrdp_bitmap *b;
     short *s;
     int index;
+    int is_empty;
+
+    wm = (struct xrdp_wm*)(mod->wm);
+    mm = wm->mm;
+    
+    if (mm->in_codec_mode)
+    {
+        /* copy formal params to XRDP_ENC_DATA */
+        XRDP_ENC_DATA *enc_data = (XRDP_ENC_DATA *) g_malloc(sizeof(XRDP_ENC_DATA), 0);
+        if (!enc_data)
+            return 1;
+            
+        enc_data->drects = g_malloc(sizeof(short) * num_drects * 4, 0);
+        if (!enc_data->drects)
+        {
+            g_free(enc_data);
+            return 1;
+        }
+        
+        enc_data->crects = g_malloc(sizeof(short) * num_crects * 4, 0);
+        if (!enc_data->crects)
+        {
+            g_free(enc_data);
+            g_free(enc_data->drects);
+            return 1;
+        }
+        
+        g_memcpy(enc_data->drects, drects, sizeof(short) * num_drects * 4);
+        g_memcpy(enc_data->crects, crects, sizeof(short) * num_crects * 4);
+
+        enc_data->mod = mod;
+        enc_data->num_drects = num_drects;
+        enc_data->num_crects = num_crects;
+        enc_data->data = data;
+        enc_data->width = width;
+        enc_data->height = height;
+        enc_data->flags = flags;
+        
+        /* insert into fifo for encoder thread to process */
+        tc_mutex_lock(mm->mutex);
+        is_empty = fifo_is_empty(mm->fifo_to_proc);
+        fifo_add_item(mm->fifo_to_proc, (void *) enc_data);
+        tc_mutex_unlock(mm->mutex);
+    
+        /* signal xrdp_encoder thread */
+        if (is_empty)
+            g_set_wait_obj(mm->xrdp_encoder_event);
+        
+        return 0;
+    }
 
     //g_writeln("server_paint_rects:");
-    wm = (struct xrdp_wm*)(mod->wm);
+    
     p = (struct xrdp_painter*)(mod->painter);
     if (p == 0)
     {

xrdp/xrdp_types.h

@@ -26,6 +26,7 @@
 
 #include "xrdp_rail.h"
 #include "xrdp_constants.h"
+#include "fifo.h"
 
 #define MAX_NR_CHANNELS 16
 #define MAX_CHANNEL_NAME 16
@@ -262,12 +263,19 @@ struct xrdp_mm
   int (*mod_exit)(struct xrdp_mod*);
   struct xrdp_mod* mod; /* module interface */
   int display; /* 10 for :10.0, 11 for :11.0, etc */
-  int code; /* 0 Xvnc session 10 X11rdp session */
+  int code; /* 0=Xvnc session, 10=X11rdp session, 20=xorg driver mode */
   int sesman_controlled; /* true if this is a sesman session */
   struct trans* chan_trans; /* connection to chansrv */
   int chan_trans_up; /* true once connected to chansrv */
   int delete_chan_trans; /* boolean set when done with channel connection */
   int usechansrv; /* true if chansrvport is set in xrdp.ini or using sesman */
+  
+  /* for codec mode operations */
+  int   in_codec_mode;
+  tbus  xrdp_encoder_event;
+  FIFO *fifo_to_proc;
+  FIFO *fifo_processed;
+  tbus  mutex;
 };
 
 struct xrdp_key_info
@@ -581,4 +589,20 @@ struct xrdp_config
     struct xrdp_cfg_channels  cfg_channels;
 };
 
+/* used when scheduling tasks in xrdp_encoder.c */
+struct xrdp_enc_data
+{
+    struct xrdp_mod *mod;
+    int              num_drects;
+    short           *drects;     /* 4 * num_drects */
+    int              num_crects;
+    short           *crects;     /* 4 * num_crects */
+    char            *data;
+    int              width;
+    int              height;
+    int              flags;  
+};
+
+typedef struct xrdp_enc_data XRDP_ENC_DATA;
+
 #endif