1 files changed, 296 insertions, 0 deletions
diff --git a/imlibrenderer/xrenderer/xrenderer.c b/imlibrenderer/xrenderer/xrenderer.c
new file mode 100644
index 0000000..7dde32b
--- /dev/null
+++ b/imlibrenderer/xrenderer/xrenderer.c
@@ -0,0 +1,296 @@
+//***************************************************************************
+// Group VDR/GraphTFT
+// File xrenderer.c
+// Date 16.02.14 - Jörg Wendel
+// This code is distributed under the terms and conditions of the
+// GNU GENERAL PUBLIC LICENSE. See the file COPYING for details.
+//--------------------------------------------------------------------------
+// Class XRenderer
+//***************************************************************************
+
+#include <stdio.h>
+
+#include <X11/Xutil.h>
+#include <X11/cursorfont.h>
+#define XK_MISCELLANY
+#include <X11/keysymdef.h>
+
+#include <common.h>
+#include "xrenderer.h"
+
+//***************************************************************************
+// Object
+//***************************************************************************
+
+XRenderer::XRenderer(int x, int y, int width, int height, 
+                     string cfgPath, int utf, string thmPath)
+   : ImlibRenderer(x, y, width, height, cfgPath, utf, thmPath)
+{
+   disp = 0;
+   win = 0;
+   pix = 0;
+   screen = 0;
+   initialized = no;
+}
+
+XRenderer::~XRenderer()
+{
+	deinit();
+}
+
+void XRenderer::setDisplaySize(int width, int height)
+{
+   if (dspWidth != width || dspHeight != height)
+   {
+      cMutexLock lock(&mutex);
+
+      tell(0, "Changing display size to %dx%d", width, height);      
+      deinit();
+      dspWidth = width;
+      dspHeight = height;
+      init(no);
+   }
+}
+
+//***************************************************************************
+// Init
+//***************************************************************************
+
+int XRenderer::init(int lazy)
+{
+   const char* appName = "graphtft-fe";
+
+   Visual* vis;
+   Colormap cm;
+   int depth;
+   XClassHint* classHint;
+
+   cMutexLock lock(&mutex);
+
+   ImlibRenderer::init(lazy);
+
+   if (Str::isEmpty(devname))
+   {
+      tell(0, "Can't open display 'null' continue in detached mode!");
+      return fail;
+   }
+
+   // init X 
+
+   if (!(disp = XOpenDisplay(devname)))
+   {
+      tell(0, "Can't open display '%s' continue in detached mode", devname);
+      return lazy ? success : fail;
+   }
+
+   if (!XInitThreads()) 
+      tell(0, "Can't initialize X11 thread support");
+
+   // init display
+
+   screen = DefaultScreen(disp);
+   vis    = DefaultVisual(disp, screen);
+   depth  = DefaultDepth(disp, screen);
+   cm     = DefaultColormap(disp, screen);
+
+   // create simple window
+
+   win = XCreateSimpleWindow(disp, DefaultRootWindow(disp), 
+                             0, depth, dspWidth, dspHeight, 0, 0, 0);
+  
+   XSetStandardProperties(disp, win, appName, appName, None, 0, 0, 0);
+   XStoreName(disp, win, appName);
+  
+   /* set the name and class hints for the window manager to use */
+   
+   classHint = XAllocClassHint();
+   classHint->res_name = (char*)appName;
+   classHint->res_class = (char*)appName;
+   XSetClassHint(disp, win, classHint);
+   XFree(classHint);
+   
+   XSelectInput(disp, win, 
+                ButtonPressMask   |
+                ButtonReleaseMask | 
+                PointerMotionMask | 
+                KeyPressMask      |
+                ClientMessage     |
+                SubstructureNotifyMask |
+                ExposureMask);                    // events to receive
+
+   XMapWindow(disp, win);                         // show
+   XFlush(disp);
+
+   Screen* scn = DefaultScreenOfDisplay(disp);
+   pix = XCreatePixmap(disp, win, dspWidth, dspHeight, DefaultDepthOfScreen(scn));
+
+   imlib_context_set_dither(1);         // dither for depths < 24bpp 
+   imlib_context_set_display(disp);     // set the display
+   imlib_context_set_visual(vis);       // visual,
+   imlib_context_set_colormap(cm);      // colormap
+   imlib_context_set_drawable(pix);     // and drawable we are using 
+
+//    {
+//       XWindowAttributes windowAttributes;
+//       XGetWindowAttributes(disp, win, &windowAttributes);
+//       int w = windowAttributes.width; 
+//       int h = windowAttributes.height;
+      
+//       tell(0, "Created window with (%d/%d) got (%d/%d)", dspWidth, dspHeight, w, h);
+//    }
+
+   tell(0, "Connection to '%s' established", devname);
+   initialized = yes;
+
+   return success;
+}
+
+//***************************************************************************
+// Deinit
+//***************************************************************************
+
+void XRenderer::deinit()
+{
+   cMutexLock lock(&mutex);
+
+   ImlibRenderer::deinit();
+
+   if (initialized)
+   {
+      imlib_context_disconnect_display();
+
+      if (win)  XDestroyWindow(disp, win);
+      if (pix)  XFreePixmap(disp, pix);
+
+      XFlush(disp);
+
+      if (XCloseDisplay(disp))
+         tell(0, "Error closing display");
+
+      disp = 0;
+      win = 0;
+      pix = 0;
+      screen = 0;
+      initialized = no;
+   }
+
+   tell(0, "Connection to '%s' closed, now detached", devname);
+}
+
+//***************************************************************************
+// attach / detach
+//***************************************************************************
+
+int XRenderer::attach(const char* disp)   
+{ 
+   if (initialized)
+   {
+      tell(0, "Already attached, trying detach first");
+      detach();
+   }
+
+   if (!Str::isEmpty(disp))
+      setDevName(disp);
+
+   tell(0, "Try to attach to '%s'", devname);
+
+   return init(no);
+}
+
+int XRenderer::detach()
+{ 
+   if (!initialized)
+   {
+      tell(0, "Already detached");
+      return done;
+   }
+
+   tell(0, "Detach from '%s'", devname);
+   deinit();
+
+   return success;
+}
+
+//***************************************************************************
+// X Pending
+//***************************************************************************
+
+int XRenderer::xPending()
+{
+   cMutexLock lock(&mutex);
+   XEvent ev;
+
+   if (!initialized)
+      return success;
+
+   while (XPending(disp))
+      XNextEvent(disp, &ev);
+
+   return success;
+}
+
+//***************************************************************************
+// Refresh
+//***************************************************************************
+
+void XRenderer::refresh(int force)
+{
+   cMutexLock lock(&mutex);
+
+   if (!force || !initialized)    // don't need 'total' refresh every time since we refresh the areas
+      return;
+
+   tell(2, "refresh all");
+
+   refreshPixmap();
+
+   XClearWindow(disp, win);
+}
+
+void XRenderer::refreshArea(int x, int y, int width, int height)
+{
+   cMutexLock lock(&mutex);
+
+   if (!initialized)
+      return ;
+
+   refreshPixmap();
+
+   // scale coordinates from theme to display size
+
+   double xScale = (double)dspWidth / (double)themeWidth;
+   double yScale = (double)dspHeight / (double)themeHeight;
+
+   int xDsp = x * xScale;
+   int yDsp = y * yScale;
+   int widthDsp = width * xScale;
+   int heightDsp = height * yScale;
+
+   tell(3, "Refresh area at %d/%d (%d/%d); scaled to %d/%d (%d/%d); scale %.2f/%.2f; dspSize (%d/%d)",
+        x, y, width, height, xDsp, yDsp, widthDsp, heightDsp,
+        xScale, yScale, dspWidth, dspHeight);
+   
+   XClearArea(disp, win, xDsp, yDsp, widthDsp, heightDsp, false);
+}
+
+void XRenderer::refreshPixmap()
+{
+   //  XWindowAttributes windowAttributes;
+   //  XGetWindowAttributes(disp, win, &windowAttributes);
+   //  int width = windowAttributes.width; 
+   //  int height = windowAttributes.height;
+
+   imlib_context_set_image(_cur_image);
+   imlib_render_image_on_drawable_at_size(0, 0, dspWidth, dspHeight);
+
+   XSetWindowBackgroundPixmap(disp, win, pix);
+}
+
+void XRenderer::clear()
+{
+   if (!initialized)
+      return ;
+
+   cMutexLock lock(&mutex);
+	ImlibRenderer::clear();
+}