From 3ed5e71da71e50849eb9e2c3244e843bc5e38a05 Mon Sep 17 00:00:00 2001
From: Matthias Melcher <fltk@matthiasm.com>
Date: Mon, 5 Mar 2018 23:17:51 +0000
Subject: Android: moved to IDE directory.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12711 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
---
 src/drivers/Android/Fl_Android_Application.cxx | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

(limited to 'src/drivers/Android/Fl_Android_Application.cxx')

diff --git a/src/drivers/Android/Fl_Android_Application.cxx b/src/drivers/Android/Fl_Android_Application.cxx
index 59fa8483c..0219d66fe 100644
--- a/src/drivers/Android/Fl_Android_Application.cxx
+++ b/src/drivers/Android/Fl_Android_Application.cxx
@@ -397,9 +397,21 @@ void Fl_Android_Application::copy_screen()
     // TODO: there are endless possibilities to optimize the following code
     // We can identify previously written buffers and copy only those pixels
     // that actually changed.
-    memcpy(pNativeWindowBuffer.bits,
-           pApplicationWindowBuffer.bits,
-           600*800*2);
+    const uint16_t *src = (uint16_t*)pApplicationWindowBuffer.bits;
+    int srcStride = pApplicationWindowBuffer.stride;
+    int ww = pApplicationWindowBuffer.width;
+    int hh = pApplicationWindowBuffer.height;
+
+    uint16_t *dst = (uint16_t*)pNativeWindowBuffer.bits;
+    int dstStride = pNativeWindowBuffer.stride;
+    if (pNativeWindowBuffer.width<ww) ww = pNativeWindowBuffer.width;
+    if (pNativeWindowBuffer.height<ww) ww = pNativeWindowBuffer.height;
+
+    for (int row=hh; row>0; --row) {
+      memcpy(dst, src, size_t(ww * 2));
+      src += srcStride;
+      dst += dstStride;
+    }
     unlock_and_post_screen();
   }
 }
-- 
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