+/*\r
+ * freeglut_state_mswin.c\r
+ *\r
+ * The Windows-specific state query methods.\r
+ *\r
+ * Copyright (c) 2012 Stephen J. Baker. All Rights Reserved.\r
+ * Written by John F. Fay, <fayjf@sourceforge.net>\r
+ * Creation date: Sun Jan 22, 2012\r
+ *\r
+ * Permission is hereby granted, free of charge, to any person obtaining a\r
+ * copy of this software and associated documentation files (the "Software"),\r
+ * to deal in the Software without restriction, including without limitation\r
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,\r
+ * and/or sell copies of the Software, and to permit persons to whom the\r
+ * Software is furnished to do so, subject to the following conditions:\r
+ *\r
+ * The above copyright notice and this permission notice shall be included\r
+ * in all copies or substantial portions of the Software.\r
+ *\r
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS\r
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\r
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL\r
+ * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
+ */\r
+\r
+#include <GL/freeglut.h>\r
+#include "../Common/freeglut_internal.h"\r
+\r
+\r
+extern GLboolean fgSetupPixelFormat( SFG_Window* window, GLboolean checkOnly,\r
+ unsigned char layer_type );\r
+\r
+/* \r
+ * Helper functions for getting client area from the window rect\r
+ * and the window rect from the client area given the style of the window\r
+ * (or a valid window pointer from which the style can be queried).\r
+ */\r
+extern RECT fghGetClientArea( const SFG_Window *window, BOOL wantPosOutside );\r
+extern void fghGetBorderWidth(const DWORD windowStyle, int* xBorderWidth, int* yBorderWidth);\r
+\r
+\r
+/* The following include file is available from SGI but is not standard:\r
+ * #include <GL/wglext.h>\r
+ * So we copy the necessary parts out of it to support the multisampling query\r
+ */\r
+#define WGL_SAMPLES_ARB 0x2042\r
+\r
+\r
+\r
+int fgPlatformGlutGet ( GLenum eWhat )\r
+{\r
+ int returnValue ;\r
+ GLboolean boolValue ;\r
+\r
+ int nsamples = 0;\r
+\r
+ switch( eWhat )\r
+ {\r
+ case GLUT_WINDOW_NUM_SAMPLES:\r
+ glGetIntegerv(WGL_SAMPLES_ARB, &nsamples);\r
+ return nsamples;\r
+\r
+ /* Handle the OpenGL inquiries */\r
+ case GLUT_WINDOW_RGBA:\r
+#if defined(_WIN32_WCE)\r
+ boolValue = (GLboolean)0; /* WinCE doesn't support this feature */\r
+#else\r
+ glGetBooleanv ( GL_RGBA_MODE, &boolValue );\r
+ returnValue = boolValue ? 1 : 0;\r
+#endif\r
+ return returnValue;\r
+ case GLUT_WINDOW_DOUBLEBUFFER:\r
+#if defined(_WIN32_WCE)\r
+ boolValue = (GLboolean)0; /* WinCE doesn't support this feature */\r
+#else\r
+ glGetBooleanv ( GL_DOUBLEBUFFER, &boolValue );\r
+ returnValue = boolValue ? 1 : 0;\r
+#endif\r
+ return returnValue;\r
+ case GLUT_WINDOW_STEREO:\r
+#if defined(_WIN32_WCE)\r
+ boolValue = (GLboolean)0; /* WinCE doesn't support this feature */\r
+#else\r
+ glGetBooleanv ( GL_STEREO, &boolValue );\r
+ returnValue = boolValue ? 1 : 0;\r
+#endif\r
+ return returnValue;\r
+\r
+ case GLUT_WINDOW_RED_SIZE:\r
+ glGetIntegerv ( GL_RED_BITS, &returnValue );\r
+ return returnValue;\r
+ case GLUT_WINDOW_GREEN_SIZE:\r
+ glGetIntegerv ( GL_GREEN_BITS, &returnValue );\r
+ return returnValue;\r
+ case GLUT_WINDOW_BLUE_SIZE:\r
+ glGetIntegerv ( GL_BLUE_BITS, &returnValue );\r
+ return returnValue;\r
+ case GLUT_WINDOW_ALPHA_SIZE:\r
+ glGetIntegerv ( GL_ALPHA_BITS, &returnValue );\r
+ return returnValue;\r
+ case GLUT_WINDOW_ACCUM_RED_SIZE:\r
+#if defined(_WIN32_WCE)\r
+ returnValue = 0; /* WinCE doesn't support this feature */\r
+#else\r
+ glGetIntegerv ( GL_ACCUM_RED_BITS, &returnValue );\r
+#endif\r
+ return returnValue;\r
+ case GLUT_WINDOW_ACCUM_GREEN_SIZE:\r
+#if defined(_WIN32_WCE)\r
+ returnValue = 0; /* WinCE doesn't support this feature */\r
+#else\r
+ glGetIntegerv ( GL_ACCUM_GREEN_BITS, &returnValue );\r
+#endif\r
+ return returnValue;\r
+ case GLUT_WINDOW_ACCUM_BLUE_SIZE:\r
+#if defined(_WIN32_WCE)\r
+ returnValue = 0; /* WinCE doesn't support this feature */\r
+#else\r
+ glGetIntegerv ( GL_ACCUM_BLUE_BITS, &returnValue );\r
+#endif\r
+ return returnValue;\r
+ case GLUT_WINDOW_ACCUM_ALPHA_SIZE:\r
+#if defined(_WIN32_WCE)\r
+ returnValue = 0; /* WinCE doesn't support this feature */\r
+#else\r
+ glGetIntegerv ( GL_ACCUM_ALPHA_BITS, &returnValue );\r
+#endif\r
+ return returnValue;\r
+ case GLUT_WINDOW_DEPTH_SIZE:\r
+ glGetIntegerv ( GL_DEPTH_BITS, &returnValue );\r
+ return returnValue;\r
+\r
+ case GLUT_WINDOW_BUFFER_SIZE:\r
+ returnValue = 1 ; /* ????? */\r
+ return returnValue;\r
+ case GLUT_WINDOW_STENCIL_SIZE:\r
+ returnValue = 0 ; /* ????? */\r
+ return returnValue;\r
+\r
+ case GLUT_WINDOW_X:\r
+ case GLUT_WINDOW_Y:\r
+ case GLUT_WINDOW_WIDTH:\r
+ case GLUT_WINDOW_HEIGHT:\r
+ {\r
+ /*\r
+ * There is considerable confusion about the "right thing to\r
+ * do" concerning window size and position. GLUT itself is\r
+ * not consistent between Windows and UNIX/X11; since\r
+ * platform independence is a virtue for "freeglut", we\r
+ * decided to break with GLUT's behaviour.\r
+ *\r
+ * Under UNIX/X11, it is apparently not possible to get the\r
+ * window border sizes in order to subtract them off the\r
+ * window's initial position until some time after the window\r
+ * has been created. Therefore we decided on the following\r
+ * behaviour, both under Windows and under UNIX/X11:\r
+ * - When you create a window with position (x,y) and size\r
+ * (w,h), the upper left hand corner of the outside of the\r
+ * window is at (x,y) and the size of the drawable area is\r
+ * (w,h).\r
+ * - When you query the size and position of the window--as\r
+ * is happening here for Windows--"freeglut" will return\r
+ * the size of the drawable area--the (w,h) that you\r
+ * specified when you created the window--and the coordinates\r
+ * of the upper left hand corner of the drawable\r
+ * area--which is NOT the (x,y) you specified.\r
+ */\r
+\r
+ RECT winRect;\r
+\r
+ freeglut_return_val_if_fail( fgStructure.CurrentWindow != NULL, 0 );\r
+\r
+#if defined(_WIN32_WCE)\r
+ GetWindowRect( fgStructure.CurrentWindow->Window.Handle, &winRect );\r
+#else\r
+ winRect = fghGetClientArea(fgStructure.CurrentWindow, FALSE);\r
+#endif /* defined(_WIN32_WCE) */\r
+\r
+ switch( eWhat )\r
+ {\r
+ case GLUT_WINDOW_X: return winRect.left ;\r
+ case GLUT_WINDOW_Y: return winRect.top ;\r
+ case GLUT_WINDOW_WIDTH: return winRect.right - winRect.left;\r
+ case GLUT_WINDOW_HEIGHT: return winRect.bottom - winRect.top;\r
+ }\r
+ }\r
+ break;\r
+\r
+ case GLUT_WINDOW_BORDER_WIDTH :\r
+ case GLUT_WINDOW_HEADER_HEIGHT :\r
+#if defined(_WIN32_WCE)\r
+ return 0;\r
+#else\r
+ {\r
+ DWORD windowStyle;\r
+\r
+ if (fgStructure.CurrentWindow && fgStructure.CurrentWindow->Window.Handle)\r
+ windowStyle = GetWindowLong(fgStructure.CurrentWindow->Window.Handle, GWL_STYLE);\r
+ else\r
+ /* If no window, return sizes for a default window with title bar and border */\r
+ windowStyle = WS_OVERLAPPEDWINDOW;\r
+ \r
+ switch( eWhat )\r
+ {\r
+ case GLUT_WINDOW_BORDER_WIDTH:\r
+ {\r
+ int xBorderWidth, yBorderWidth;\r
+ fghGetBorderWidth(windowStyle, &xBorderWidth, &yBorderWidth);\r
+ return xBorderWidth;\r
+ }\r
+ case GLUT_WINDOW_HEADER_HEIGHT:\r
+ /* Need to query for WS_MAXIMIZEBOX to see if we have a title bar, the WS_CAPTION query is also true for a WS_DLGFRAME only... */\r
+ return (windowStyle & WS_MAXIMIZEBOX)? GetSystemMetrics( SM_CYCAPTION ) : 0;\r
+ }\r
+ }\r
+#endif /* defined(_WIN32_WCE) */\r
+\r
+ case GLUT_DISPLAY_MODE_POSSIBLE:\r
+#if defined(_WIN32_WCE)\r
+ return 0;\r
+#else\r
+ return fgSetupPixelFormat( fgStructure.CurrentWindow, GL_TRUE,\r
+ PFD_MAIN_PLANE );\r
+#endif /* defined(_WIN32_WCE) */\r
+\r
+\r
+ case GLUT_WINDOW_FORMAT_ID:\r
+#if !defined(_WIN32_WCE)\r
+ if( fgStructure.CurrentWindow != NULL )\r
+ return GetPixelFormat( fgStructure.CurrentWindow->Window.pContext.Device );\r
+#endif /* defined(_WIN32_WCE) */\r
+ return 0;\r
+\r
+ default:\r
+ fgWarning( "glutGet(): missing enum handle %d", eWhat );\r
+ break;\r
+ }\r
+\r
+ return -1;\r
+}\r
+\r
+\r
+int fgPlatformGlutDeviceGet ( GLenum eWhat )\r
+{\r
+ switch( eWhat )\r
+ {\r
+ case GLUT_HAS_KEYBOARD:\r
+ /*\r
+ * Win32 is assumed a keyboard, and this cannot be queried,\r
+ * except for WindowsCE.\r
+ *\r
+ * X11 has a core keyboard by definition, although it can\r
+ * be present as a virtual/dummy keyboard. For now, there\r
+ * is no reliable way to tell if a real keyboard is present.\r
+ */\r
+#if defined(_WIN32_CE)\r
+ return ( GetKeyboardStatus() & KBDI_KEYBOARD_PRESENT ) ? 1 : 0;\r
+# if FREEGLUT_LIB_PRAGMAS\r
+# pragma comment (lib,"Kbdui.lib")\r
+# endif\r
+\r
+#else\r
+ return 1;\r
+#endif\r
+\r
+ case GLUT_HAS_MOUSE:\r
+ /*\r
+ * MS Windows can be booted without a mouse.\r
+ */\r
+ return GetSystemMetrics( SM_MOUSEPRESENT );\r
+\r
+ case GLUT_NUM_MOUSE_BUTTONS:\r
+# if defined(_WIN32_WCE)\r
+ return 1;\r
+# else\r
+ return GetSystemMetrics( SM_CMOUSEBUTTONS );\r
+# endif\r
+\r
+ default:\r
+ fgWarning( "glutDeviceGet(): missing enum handle %d", eWhat );\r
+ break;\r
+ }\r
+\r
+ /* And now -- the failure. */\r
+ return -1;\r
+}\r
+\r
+\r
+int fgPlatformGlutLayerGet( GLenum eWhat )\r
+{\r
+ /*\r
+ * This is easy as layers are not implemented ;-)\r
+ *\r
+ * XXX Can we merge the UNIX/X11 and WIN32 sections? Or\r
+ * XXX is overlay support planned?\r
+ */\r
+ switch( eWhat )\r
+ {\r
+\r
+ case GLUT_OVERLAY_POSSIBLE:\r
+/* return fgSetupPixelFormat( fgStructure.CurrentWindow, GL_TRUE,\r
+ PFD_OVERLAY_PLANE ); */\r
+ return 0 ;\r
+\r
+ case GLUT_LAYER_IN_USE:\r
+ return GLUT_NORMAL;\r
+\r
+ case GLUT_HAS_OVERLAY:\r
+ return 0;\r
+\r
+ case GLUT_TRANSPARENT_INDEX:\r
+ /*\r
+ * Return just anything, which is always defined as zero\r
+ *\r
+ * XXX HUH?\r
+ */\r
+ return 0;\r
+\r
+ case GLUT_NORMAL_DAMAGED:\r
+ /* XXX Actually I do not know. Maybe. */\r
+ return 0;\r
+\r
+ case GLUT_OVERLAY_DAMAGED:\r
+ return -1;\r
+\r
+ default:\r
+ fgWarning( "glutLayerGet(): missing enum handle %d", eWhat );\r
+ break;\r
+ }\r
+\r
+ /* And fail. That's good. Programs do love failing. */\r
+ return -1;\r
+}\r
+\r
+\r
+/* MSwin does not currently have any Mode values? */\r
+int *fgPlatformGlutGetModeValues(GLenum eWhat, int *size)\r
+{\r
+ *size = 0;\r
+ return NULL;\r
+}
\ No newline at end of file
projects / freeglut / blobdiff