[MPlayer-cygwin] Testers needed for -vo gl under Vista

[Reimar Döffinger]

Hello,
to anyone who wants the issues to be fixed, I need someone who can
compile MPlayer and test patches.
Attached is a patch that might make -vo gl actually display something.
I was reading the VirtualDub blog, and it seems Vista just doesn't
update windows as long as there is still a DC allocated - and MPlayer
for simplicity always keeps one.
Note: I did not even test for compilation.

Greetings,
Reimar Döffinger
-------------- next part --------------
Index: libvo/w32_common.c
===================================================================
--- libvo/w32_common.c	(revision 22946)
+++ libvo/w32_common.c	(working copy)
@@ -10,6 +10,9 @@
 #include "video_out.h"
 #include "aspect.h"
 #include "w32_common.h"
+#ifndef PFD_SUPPORT_COMPOSITION
+#define PFD_SUPPORT_COMPOSITION 0x00008000
+#endif
 #include "mp_fifo.h"
 
 extern int enable_mouse_movements;
@@ -20,7 +23,6 @@
 
 static const char* classname = "MPlayer - Media player for Win32";
 int vo_vm = 0;
-HDC vo_hdc = 0;
 
 // last non-fullscreen extends
 int prev_width;
@@ -250,6 +253,7 @@
 static int createRenderingContext(void) {
     HWND layer = HWND_NOTOPMOST;
     PIXELFORMATDESCRIPTOR pfd;
+    HDC vo_hdc = GetDC(vo_window);
     RECT r;
     int pf;
   if (WinID < 0) {
@@ -298,13 +302,14 @@
     memset(&pfd, 0, sizeof pfd);
     pfd.nSize = sizeof pfd;
     pfd.nVersion = 1;
-    pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
+    pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER | PFD_SUPPORT_COMPOSITION;
     pfd.iPixelType = PFD_TYPE_RGBA;
     pfd.cColorBits = 24;
     pfd.iLayerType = PFD_MAIN_PLANE;
     pf = ChoosePixelFormat(vo_hdc, &pfd);
     if (!pf) {
             mp_msg(MSGT_VO, MSGL_ERR, "vo: win32: unable to select a valid pixel format!\n");
+        ReleaseDC(vo_hdc);
         return 0;
     }
 
@@ -312,6 +317,7 @@
     
     mp_msg(MSGT_VO, MSGL_V, "vo: win32: running at %dx%d with depth %d\n", vo_screenwidth, vo_screenheight, vo_depthonscreen);
 
+    ReleaseDC(vo_hdc);
     return 1;
 }
 
@@ -366,8 +372,6 @@
     }
     }
 
-    vo_hdc = GetDC(vo_window);
-
     myMonitorFromWindow = NULL;
     myGetMonitorInfo = NULL;
     myEnumDisplayMonitors = NULL;
Index: libvo/gl_common.c
===================================================================
--- libvo/gl_common.c	(revision 22946)
+++ libvo/gl_common.c	(working copy)
@@ -1341,6 +1381,7 @@
   HDC windc = GetDC(win);
   HGLRC new_context = 0;
   int keep_context = 0;
+  int res = SET_WINDOW_FAILED;
 
   // should only be needed when keeping context, but not doing glFinish
   // can cause flickering even when we do not keep it.
@@ -1356,7 +1397,7 @@
     new_context = wglCreateContext(windc);
     if (!new_context) {
       mp_msg(MSGT_VO, MSGL_FATAL, "[gl] Could not create GL context!\n");
-      return SET_WINDOW_FAILED;
+      goto out;
     }
   }
 
@@ -1366,12 +1407,11 @@
     if (!keep_context) {
       wglDeleteContext(new_context);
     }
-    return SET_WINDOW_FAILED;
+    goto out;
   }
 
   // set new values
   vo_w32_window = win;
-  vo_hdc = windc;
   {
     RECT rect;
     GetClientRect(win, &rect);
@@ -1386,9 +1426,13 @@
     getFunctions(w32gpa, NULL);
 
     // and inform that reinit is neccessary
-    return SET_WINDOW_REINIT;
-  }
-  return SET_WINDOW_OK;
+    res = SET_WINDOW_REINIT;
+  } else
+    res = SET_WINDOW_OK;
+
+out:
+  ReleaseDC(windc);
+  return res;
 }
 
 void releaseGlContext(int *vinfo, HGLRC *context) {
@@ -1401,7 +1445,9 @@
 }
 
 void swapGlBuffers() {
+  HDC vo_hdc = GetDC(vo_w32_window);
   SwapBuffers(vo_hdc);
+  ReleaseDC(vo_hdc);
 }
 #else
 #ifdef HAVE_LIBDL
Index: libvo/vo_gl2.c
===================================================================
--- libvo/vo_gl2.c	(revision 22946)
+++ libvo/vo_gl2.c	(working copy)
@@ -106,6 +106,7 @@
 {
 #ifdef GL_WIN32
   PIXELFORMATDESCRIPTOR pfd;
+  HDC vo_hdc = GetDC(vo_w32_window);
   int pf = GetPixelFormat(vo_hdc);
   if (!DescribePixelFormat(vo_hdc, pf, sizeof pfd, &pfd)) {
     r_sz = g_sz = b_sz = a_sz = 0;
@@ -115,6 +116,7 @@
     b_sz = pfd.cBlueBits;
     a_sz = pfd.cAlphaBits;
   }
+  ReleaseDC(vo_hdc);
 #else
   if (glXGetConfig(mDisplay, gl_vinfo, GLX_RED_SIZE, &r_sz) != 0) r_sz = 0;
   if (glXGetConfig(mDisplay, gl_vinfo, GLX_GREEN_SIZE, &g_sz) != 0) g_sz = 0;