Changeset 11395 in vbox

Timestamp:

Aug 13, 2008 3:43:17 PM (16 years ago)

Author:

vboxsync

Message:

Fixed SetPixelFormat failure with NVIDIA drivers

File:

• trunk/src/VBox/Additions/WINNT/Graphics/OpenGL/test/tstShOpenGL.cpp (modified) (4 diffs)

trunk/src/VBox/Additions/WINNT/Graphics/OpenGL/test/tstShOpenGL.cpp

@@ -21 +21 @@
 #include <GL/gl.h>
 #include <stdio.h>
-
-
-
+#include <io.h>
+#include <fcntl.h>
 
 // Enable OpenGL
@@ -29 +28 @@
 void EnableOpenGL(HWND hWnd, HDC * hDC, HGLRC * hRC)
 {
-        PIXELFORMATDESCRIPTOR pfd;
-        int format;
-        
-        // get the device context (DC)
-        *hDC = GetDC( hWnd );
-        
-        // set the pixel format for the DC
-        ZeroMemory( &pfd, sizeof( pfd ) );
-        pfd.nSize = sizeof( pfd );
-        pfd.nVersion = 1;
-        pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
-        pfd.iPixelType = PFD_TYPE_RGBA;
-        pfd.cColorBits = 24;
-        pfd.cDepthBits = 16;
-        pfd.iLayerType = PFD_MAIN_PLANE;
-        format = ChoosePixelFormat( *hDC, &pfd );
-        SetPixelFormat( *hDC, format, &pfd );
-        
-        // create and enable the render context (RC)
-        *hRC = wglCreateContext( *hDC );
-        wglMakeCurrent( *hDC, *hRC );
-        
+    PIXELFORMATDESCRIPTOR pfd;
+    int format;
+    
+    // get the device context (DC)
+    *hDC = GetDC( hWnd );
+    
+    // set the pixel format for the DC
+    ZeroMemory( &pfd, sizeof( pfd ) );
+    pfd.nSize = sizeof( pfd );
+    pfd.nVersion = 1;
+    pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
+    pfd.iPixelType = PFD_TYPE_RGBA;
+    pfd.cColorBits = 24;
+    pfd.cDepthBits = 16;
+    pfd.iLayerType = PFD_MAIN_PLANE;
+    format = ChoosePixelFormat( *hDC, &pfd );
+    if (!SetPixelFormat( *hDC, format, &pfd ))
+    {
+        printf("SetPixelFormat(%d) failed, rc = %u\n", format, (unsigned)GetLastError());
+    }
+    
+    // create and enable the render context (RC)
+    *hRC = wglCreateContext( *hDC );
+    if (hRC == INVALID_HANDLE_VALUE)
+    {
+        printf("wglCreateContext failed, rc = %d\n", GetLastError());
+    }
+
+    if (!wglMakeCurrent( *hDC, *hRC ))
+    {
+        printf("wglMakeCurrent failed, rc = %d\n", GetLastError());
+    }
 }
 
@@ -57 +66 @@
 void DisableOpenGL(HWND hWnd, HDC hDC, HGLRC hRC)
 {
-        wglMakeCurrent( NULL, NULL );
-        wglDeleteContext( hRC );
-        ReleaseDC( hWnd, hDC );
+    wglMakeCurrent( NULL, NULL );
+    wglDeleteContext( hRC );
+    ReleaseDC( hWnd, hDC );
 }
 
-int main(int argc, char **argv)
+HWND CreateInvisWindow(HINSTANCE hInstance)
+{
+    WNDCLASS wc;
+    HWND hWnd;
+
+    // register window class
+    wc.style = CS_OWNDC;
+    wc.lpfnWndProc = DefWindowProc;
+    wc.cbClsExtra = 0;
+    wc.cbWndExtra = 0;
+    wc.hInstance = hInstance;
+    wc.hIcon = NULL;
+    wc.hCursor = NULL;
+    wc.hbrBackground = NULL;
+    wc.lpszMenuName = NULL;
+    wc.lpszClassName = "ShOpenGL";
+    RegisterClass( &wc );
+
+    // create main window
+    hWnd = CreateWindow( 
+        "ShOpenGL", "", 
+        WS_POPUPWINDOW,
+        0, 0, 0, 0,
+        NULL, NULL, hInstance, NULL );
+
+    return hWnd;
+}
+
+void RedirectIOToConsole()
+{
+    int hConHandle;
+    HANDLE StdHandle;
+    FILE *fp;
+
+    AllocConsole();
+
+    StdHandle = GetStdHandle(STD_OUTPUT_HANDLE);
+    hConHandle = _open_osfhandle((long)StdHandle, _O_TEXT);
+    fp = _fdopen( hConHandle, "w" );
+    *stdout = *fp;
+
+    StdHandle = GetStdHandle(STD_INPUT_HANDLE);
+    hConHandle = _open_osfhandle((long)StdHandle, _O_TEXT);
+    fp = _fdopen( hConHandle, "r" );
+    *stdin = *fp;
+}
+
+int APIENTRY WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
+                      LPSTR lpszCmdLine,
+                      int nCmdShow )
 {
     HDC hdc;
     HGLRC hglrc;
+    HWND hWnd;
 
-    EnableOpenGL(0, &hdc, &hglrc);
+    RedirectIOToConsole();
+
+    /* Make dummy window, NVIDIA drivers fail if OpenGL is used with DC from a window owned by different process */
+    hWnd = CreateInvisWindow(hInstance);
+    if (hWnd == INVALID_HANDLE_VALUE)
+    {
+      printf("CreateWindow failed\n");
+    }
+
+    EnableOpenGL(hWnd, &hdc, &hglrc);
 
     printf("GL_VENDOR       %s\n", glGetString(GL_VENDOR));
@@ -74 +142 @@
     printf("GL_EXTENSIONS   %s\n", glGetString(GL_EXTENSIONS));
 
-    DisableOpenGL(0, hdc, hglrc);
+    DisableOpenGL(hWnd, hdc, hglrc);
+
+    printf("Press Ender to finish...");
+    getchar();
+
     return 0;
 }