From c8579c340319d39778ee0a5ce328879ba274862a Mon Sep 17 00:00:00 2001
From: Jay Sorg <jay.sorg@gmail.com>
Date: Sat, 15 Feb 2014 21:19:54 -0800
Subject: [PATCH] libxrdp: started adding planar bitmap compression

---
 libxrdp/Makefile.am              |  1 +
 libxrdp/libxrdp.h                |  5 +++++
 libxrdp/xrdp_bitmap32_compress.c | 32 ++++++++++++++++++++++++++++++++
 libxrdp/xrdp_orders.c            | 12 ++++++++++--
 4 files changed, 48 insertions(+), 2 deletions(-)
 create mode 100644 libxrdp/xrdp_bitmap32_compress.c

diff --git a/libxrdp/Makefile.am b/libxrdp/Makefile.am
index 6564da36..389453b1 100644
--- a/libxrdp/Makefile.am
+++ b/libxrdp/Makefile.am
@@ -57,6 +57,7 @@ libxrdp_la_SOURCES = \
   xrdp_sec.c \
   xrdp_tcp.c \
   xrdp_bitmap_compress.c \
+  xrdp_bitmap32_compress.c \
   xrdp_jpeg_compress.c \
   xrdp_orders_rail.c \
   xrdp_mppc_enc.c
diff --git a/libxrdp/libxrdp.h b/libxrdp/libxrdp.h
index 993b412b..ebaff796 100644
--- a/libxrdp/libxrdp.h
+++ b/libxrdp/libxrdp.h
@@ -469,6 +469,11 @@ xrdp_bitmap_compress(char* in_data, int width, int height,
                      int start_line, struct stream* temp_s,
                      int e);
 int APP_CC
+xrdp_bitmap32_compress(char* in_data, int width, int height,
+                       struct stream* s, int bpp, int byte_limit,
+                       int start_line, struct stream* temp_s,
+                       int e);
+int APP_CC
 xrdp_jpeg_compress(void *handle, char* in_data, int width, int height,
                    struct stream* s, int bpp, int byte_limit,
                    int start_line, struct stream* temp_s,
diff --git a/libxrdp/xrdp_bitmap32_compress.c b/libxrdp/xrdp_bitmap32_compress.c
new file mode 100644
index 00000000..b681d040
--- /dev/null
+++ b/libxrdp/xrdp_bitmap32_compress.c
@@ -0,0 +1,32 @@
+/**
+ * xrdp: A Remote Desktop Protocol server.
+ *
+ * Copyright (C) Jay Sorg 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.
+ *
+ * planar bitmap compressor
+ * 32 bpp compression
+ */
+
+#include "libxrdp.h"
+
+/*****************************************************************************/
+int APP_CC
+xrdp_bitmap32_compress(char *in_data, int width, int height,
+                       struct stream *s, int bpp, int byte_limit,
+                       int start_line, struct stream *temp_s,
+                       int e)
+{
+    return 0;
+}
diff --git a/libxrdp/xrdp_orders.c b/libxrdp/xrdp_orders.c
index 0e2d90d2..317e1135 100644
--- a/libxrdp/xrdp_orders.c
+++ b/libxrdp/xrdp_orders.c
@@ -2570,8 +2570,16 @@ xrdp_orders_send_bitmap2(struct xrdp_orders *self,
     init_stream(temp_s, 16384);
     p = s->p;
     i = height;
-    lines_sending = xrdp_bitmap_compress(data, width, height, s, bpp, 16384,
-                                         i - 1, temp_s, e);
+    if (bpp > 24)
+    {
+        lines_sending = xrdp_bitmap32_compress(data, width, height, s, bpp, 16384,
+                                               i - 1, temp_s, e);
+    }
+    else
+    {
+        lines_sending = xrdp_bitmap_compress(data, width, height, s, bpp, 16384,
+                                             i - 1, temp_s, e);
+    }
 
     if (lines_sending != height)
     {