-/*\r
- * freeglut_state.c\r
- *\r
- * Freeglut state query methods.\r
- *\r
- * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.\r
- * Written by Pawel W. Olszta, <olszta@sourceforge.net>\r
- * Creation date: Thu Dec 16 1999\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 "freeglut_internal.h"\r
-\r
-/*\r
- * TODO BEFORE THE STABLE RELEASE:\r
- *\r
- * glutGet() -- X11 tests passed, but check if all enums\r
- * handled (what about Win32?)\r
- * glutDeviceGet() -- X11 tests passed, but check if all enums\r
- * handled (what about Win32?)\r
- * glutGetModifiers() -- OK, but could also remove the limitation\r
- * glutLayerGet() -- what about GLUT_NORMAL_DAMAGED?\r
- *\r
- * The fail-on-call policy will help adding the most needed things imho.\r
- */\r
-\r
-extern int fgPlatformGlutGet ( GLenum eWhat );\r
-\r
-/* -- LOCAL DEFINITIONS ---------------------------------------------------- */\r
-\r
-/* -- PRIVATE FUNCTIONS ---------------------------------------------------- */\r
-\r
-#if TARGET_HOST_POSIX_X11\r
-/*\r
- * Queries the GL context about some attributes\r
- */\r
-static int fghGetConfig( int attribute )\r
-{\r
- int returnValue = 0;\r
- int result; /* Not checked */\r
-\r
- if( fgStructure.CurrentWindow )\r
- result = glXGetFBConfigAttrib( fgDisplay.Display,\r
- *(fgStructure.CurrentWindow->Window.FBConfig),\r
- attribute,\r
- &returnValue );\r
-\r
- return returnValue;\r
-}\r
-\r
-static int fgPlatformGlutGet ( GLenum eWhat )\r
-{\r
- int nsamples = 0;\r
-\r
- switch( eWhat )\r
- {\r
- /*\r
- * The window/context specific queries are handled mostly by\r
- * fghGetConfig().\r
- */\r
- case GLUT_WINDOW_NUM_SAMPLES:\r
-#ifdef GLX_VERSION_1_3\r
- glGetIntegerv(GL_SAMPLES, &nsamples);\r
-#endif\r
- return nsamples;\r
-\r
- /*\r
- * The rest of GLX queries under X are general enough to use a macro to\r
- * check them\r
- */\r
-# define GLX_QUERY(a,b) case a: return fghGetConfig( b );\r
-\r
- GLX_QUERY( GLUT_WINDOW_RGBA, GLX_RGBA );\r
- GLX_QUERY( GLUT_WINDOW_DOUBLEBUFFER, GLX_DOUBLEBUFFER );\r
- GLX_QUERY( GLUT_WINDOW_BUFFER_SIZE, GLX_BUFFER_SIZE );\r
- GLX_QUERY( GLUT_WINDOW_STENCIL_SIZE, GLX_STENCIL_SIZE );\r
- GLX_QUERY( GLUT_WINDOW_DEPTH_SIZE, GLX_DEPTH_SIZE );\r
- GLX_QUERY( GLUT_WINDOW_RED_SIZE, GLX_RED_SIZE );\r
- GLX_QUERY( GLUT_WINDOW_GREEN_SIZE, GLX_GREEN_SIZE );\r
- GLX_QUERY( GLUT_WINDOW_BLUE_SIZE, GLX_BLUE_SIZE );\r
- GLX_QUERY( GLUT_WINDOW_ALPHA_SIZE, GLX_ALPHA_SIZE );\r
- GLX_QUERY( GLUT_WINDOW_ACCUM_RED_SIZE, GLX_ACCUM_RED_SIZE );\r
- GLX_QUERY( GLUT_WINDOW_ACCUM_GREEN_SIZE, GLX_ACCUM_GREEN_SIZE );\r
- GLX_QUERY( GLUT_WINDOW_ACCUM_BLUE_SIZE, GLX_ACCUM_BLUE_SIZE );\r
- GLX_QUERY( GLUT_WINDOW_ACCUM_ALPHA_SIZE, GLX_ACCUM_ALPHA_SIZE );\r
- GLX_QUERY( GLUT_WINDOW_STEREO, GLX_STEREO );\r
-\r
-# undef GLX_QUERY\r
-\r
- /* Colormap size is handled in a bit different way than all the rest */\r
- case GLUT_WINDOW_COLORMAP_SIZE:\r
- if( (fghGetConfig( GLX_RGBA )) || (fgStructure.CurrentWindow == NULL) )\r
- {\r
- /*\r
- * We've got a RGBA visual, so there is no colormap at all.\r
- * The other possibility is that we have no current window set.\r
- */\r
- return 0;\r
- }\r
- else\r
- {\r
- const GLXFBConfig * fbconfig =\r
- fgStructure.CurrentWindow->Window.FBConfig;\r
-\r
- XVisualInfo * visualInfo =\r
- glXGetVisualFromFBConfig( fgDisplay.Display, *fbconfig );\r
-\r
- const int result = visualInfo->visual->map_entries;\r
-\r
- XFree(visualInfo);\r
-\r
- return result;\r
- }\r
-\r
- /*\r
- * Those calls are somewhat similiar, as they use XGetWindowAttributes()\r
- * function\r
- */\r
- case GLUT_WINDOW_X:\r
- case GLUT_WINDOW_Y:\r
- case GLUT_WINDOW_BORDER_WIDTH:\r
- case GLUT_WINDOW_HEADER_HEIGHT:\r
- {\r
- int x, y;\r
- Window w;\r
-\r
- if( fgStructure.CurrentWindow == NULL )\r
- return 0;\r
-\r
- XTranslateCoordinates(\r
- fgDisplay.Display,\r
- fgStructure.CurrentWindow->Window.Handle,\r
- fgDisplay.RootWindow,\r
- 0, 0, &x, &y, &w);\r
-\r
- switch ( eWhat )\r
- {\r
- case GLUT_WINDOW_X: return x;\r
- case GLUT_WINDOW_Y: return y;\r
- }\r
-\r
- if ( w == 0 )\r
- return 0;\r
- XTranslateCoordinates(\r
- fgDisplay.Display,\r
- fgStructure.CurrentWindow->Window.Handle,\r
- w, 0, 0, &x, &y, &w);\r
-\r
- switch ( eWhat )\r
- {\r
- case GLUT_WINDOW_BORDER_WIDTH: return x;\r
- case GLUT_WINDOW_HEADER_HEIGHT: return y;\r
- }\r
- }\r
-\r
- case GLUT_WINDOW_WIDTH:\r
- case GLUT_WINDOW_HEIGHT:\r
- {\r
- XWindowAttributes winAttributes;\r
-\r
- if( fgStructure.CurrentWindow == NULL )\r
- return 0;\r
- XGetWindowAttributes(\r
- fgDisplay.Display,\r
- fgStructure.CurrentWindow->Window.Handle,\r
- &winAttributes\r
- );\r
- switch ( eWhat )\r
- {\r
- case GLUT_WINDOW_WIDTH: return winAttributes.width ;\r
- case GLUT_WINDOW_HEIGHT: return winAttributes.height ;\r
- }\r
- }\r
-\r
- /* I do not know yet if there will be a fgChooseVisual() function for Win32 */\r
- case GLUT_DISPLAY_MODE_POSSIBLE:\r
- {\r
- /* We should not have to call fgChooseFBConfig again here. */\r
- GLXFBConfig * fbconfig;\r
- int isPossible;\r
-\r
- fbconfig = fgChooseFBConfig(NULL);\r
-\r
- if (fbconfig == NULL)\r
- {\r
- isPossible = 0;\r
- }\r
- else\r
- {\r
- isPossible = 1;\r
- XFree(fbconfig);\r
- }\r
-\r
- return isPossible;\r
- }\r
-\r
- /* This is system-dependant */\r
- case GLUT_WINDOW_FORMAT_ID:\r
- if( fgStructure.CurrentWindow == NULL )\r
- return 0;\r
-\r
- return fghGetConfig( GLX_VISUAL_ID );\r
-\r
- default:\r
- fgWarning( "glutGet(): missing enum handle %d", eWhat );\r
- break;\r
- }\r
-}\r
-#endif\r
-\r
-/* -- INTERFACE FUNCTIONS -------------------------------------------------- */\r
-\r
-/*\r
- * General settings assignment method\r
- */\r
-void FGAPIENTRY glutSetOption( GLenum eWhat, int value )\r
-{\r
- FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetOption" );\r
-\r
- /*\r
- * XXX In chronological code add order. (WHY in that order?)\r
- */\r
- switch( eWhat )\r
- {\r
- case GLUT_INIT_WINDOW_X:\r
- fgState.Position.X = (GLint)value;\r
- break;\r
-\r
- case GLUT_INIT_WINDOW_Y:\r
- fgState.Position.Y = (GLint)value;\r
- break;\r
-\r
- case GLUT_INIT_WINDOW_WIDTH:\r
- fgState.Size.X = (GLint)value;\r
- break;\r
-\r
- case GLUT_INIT_WINDOW_HEIGHT:\r
- fgState.Size.Y = (GLint)value;\r
- break;\r
-\r
- case GLUT_INIT_DISPLAY_MODE:\r
- fgState.DisplayMode = (unsigned int)value;\r
- break;\r
-\r
- case GLUT_ACTION_ON_WINDOW_CLOSE:\r
- fgState.ActionOnWindowClose = value;\r
- break;\r
-\r
- case GLUT_RENDERING_CONTEXT:\r
- fgState.UseCurrentContext =\r
- ( value == GLUT_USE_CURRENT_CONTEXT ) ? GL_TRUE : GL_FALSE;\r
- break;\r
-\r
- case GLUT_DIRECT_RENDERING:\r
- fgState.DirectContext = value;\r
- break;\r
-\r
- case GLUT_WINDOW_CURSOR:\r
- if( fgStructure.CurrentWindow != NULL )\r
- fgStructure.CurrentWindow->State.Cursor = value;\r
- break;\r
-\r
- case GLUT_AUX:\r
- fgState.AuxiliaryBufferNumber = value;\r
- break;\r
-\r
- case GLUT_MULTISAMPLE:\r
- fgState.SampleNumber = value;\r
- break;\r
-\r
- default:\r
- fgWarning( "glutSetOption(): missing enum handle %d", eWhat );\r
- break;\r
- }\r
-}\r
-\r
-/*\r
- * General settings query method\r
- */\r
-int FGAPIENTRY glutGet( GLenum eWhat )\r
-{\r
- switch (eWhat)\r
- {\r
- case GLUT_INIT_STATE:\r
- return fgState.Initialised;\r
-\r
- case GLUT_ELAPSED_TIME:\r
- return fgElapsedTime();\r
- }\r
-\r
- FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutGet" );\r
-\r
- /* XXX In chronological code add order. (WHY in that order?) */\r
- switch( eWhat )\r
- {\r
- /* Following values are stored in fgState and fgDisplay global structures */\r
- case GLUT_SCREEN_WIDTH: return fgDisplay.ScreenWidth ;\r
- case GLUT_SCREEN_HEIGHT: return fgDisplay.ScreenHeight ;\r
- case GLUT_SCREEN_WIDTH_MM: return fgDisplay.ScreenWidthMM ;\r
- case GLUT_SCREEN_HEIGHT_MM: return fgDisplay.ScreenHeightMM;\r
- case GLUT_INIT_WINDOW_X: return fgState.Position.Use ?\r
- fgState.Position.X : -1 ;\r
- case GLUT_INIT_WINDOW_Y: return fgState.Position.Use ?\r
- fgState.Position.Y : -1 ;\r
- case GLUT_INIT_WINDOW_WIDTH: return fgState.Size.Use ?\r
- fgState.Size.X : -1 ;\r
- case GLUT_INIT_WINDOW_HEIGHT: return fgState.Size.Use ?\r
- fgState.Size.Y : -1 ;\r
- case GLUT_INIT_DISPLAY_MODE: return fgState.DisplayMode ;\r
- case GLUT_INIT_MAJOR_VERSION: return fgState.MajorVersion ;\r
- case GLUT_INIT_MINOR_VERSION: return fgState.MinorVersion ;\r
- case GLUT_INIT_FLAGS: return fgState.ContextFlags ;\r
- case GLUT_INIT_PROFILE: return fgState.ContextProfile ;\r
-\r
- /* The window structure queries */\r
- case GLUT_WINDOW_PARENT:\r
- if( fgStructure.CurrentWindow == NULL ) return 0;\r
- if( fgStructure.CurrentWindow->Parent == NULL ) return 0;\r
- return fgStructure.CurrentWindow->Parent->ID;\r
-\r
- case GLUT_WINDOW_NUM_CHILDREN:\r
- if( fgStructure.CurrentWindow == NULL )\r
- return 0;\r
- return fgListLength( &fgStructure.CurrentWindow->Children );\r
-\r
- case GLUT_WINDOW_CURSOR:\r
- if( fgStructure.CurrentWindow == NULL )\r
- return 0;\r
- return fgStructure.CurrentWindow->State.Cursor;\r
-\r
- case GLUT_MENU_NUM_ITEMS:\r
- if( fgStructure.CurrentMenu == NULL )\r
- return 0;\r
- return fgListLength( &fgStructure.CurrentMenu->Entries );\r
-\r
- case GLUT_ACTION_ON_WINDOW_CLOSE:\r
- return fgState.ActionOnWindowClose;\r
-\r
- case GLUT_VERSION :\r
- return VERSION_MAJOR * 10000 + VERSION_MINOR * 100 + VERSION_PATCH;\r
-\r
- case GLUT_RENDERING_CONTEXT:\r
- return fgState.UseCurrentContext ? GLUT_USE_CURRENT_CONTEXT\r
- : GLUT_CREATE_NEW_CONTEXT;\r
-\r
- case GLUT_DIRECT_RENDERING:\r
- return fgState.DirectContext;\r
-\r
- case GLUT_FULL_SCREEN:\r
- return fgStructure.CurrentWindow->State.IsFullscreen;\r
-\r
- case GLUT_AUX:\r
- return fgState.AuxiliaryBufferNumber;\r
-\r
- case GLUT_MULTISAMPLE:\r
- return fgState.SampleNumber;\r
-\r
- default:\r
- return fgPlatformGlutGet ( eWhat );\r
- break;\r
- }\r
- return -1;\r
-}\r
-\r
-/*\r
- * Returns various device information.\r
- */\r
-int FGAPIENTRY glutDeviceGet( GLenum eWhat )\r
-{\r
- FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutDeviceGet" );\r
-\r
- /* XXX WARNING: we are mostly lying in this function. */\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
-#if TARGET_HOST_POSIX_X11\r
-\r
- /* X11 has a mouse by definition */\r
- case GLUT_HAS_MOUSE:\r
- return 1 ;\r
-\r
- case GLUT_NUM_MOUSE_BUTTONS:\r
- /* We should be able to pass NULL when the last argument is zero,\r
- * but at least one X server has a bug where this causes a segfault.\r
- *\r
- * In XFree86/Xorg servers, a mouse wheel is seen as two buttons\r
- * rather than an Axis; "freeglut_main.c" expects this when\r
- * checking for a wheel event.\r
- */\r
- {\r
- unsigned char map;\r
- int nbuttons = XGetPointerMapping(fgDisplay.Display, &map,0);\r
- return nbuttons;\r
- }\r
-\r
-#elif TARGET_HOST_MS_WINDOWS\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
-#endif\r
-\r
- case GLUT_HAS_JOYSTICK:\r
- return fgJoystickDetect ();\r
-\r
- case GLUT_OWNS_JOYSTICK:\r
- return fgState.JoysticksInitialised;\r
-\r
- case GLUT_JOYSTICK_POLL_RATE:\r
- return fgStructure.CurrentWindow ? fgStructure.CurrentWindow->State.JoystickPollRate : 0;\r
-\r
- /* XXX The following two are only for Joystick 0 but this is an improvement */\r
- case GLUT_JOYSTICK_BUTTONS:\r
- return glutJoystickGetNumButtons ( 0 );\r
-\r
- case GLUT_JOYSTICK_AXES:\r
- return glutJoystickGetNumAxes ( 0 );\r
-\r
- case GLUT_HAS_DIAL_AND_BUTTON_BOX:\r
- return fgInputDeviceDetect ();\r
-\r
- case GLUT_NUM_DIALS:\r
- if ( fgState.InputDevsInitialised ) return 8;\r
- return 0;\r
- \r
- case GLUT_NUM_BUTTON_BOX_BUTTONS:\r
- return 0;\r
-\r
- case GLUT_HAS_SPACEBALL:\r
- return fgHasSpaceball();\r
-\r
- case GLUT_HAS_TABLET:\r
- return 0;\r
-\r
- case GLUT_NUM_SPACEBALL_BUTTONS:\r
- return fgSpaceballNumButtons();\r
-\r
- case GLUT_NUM_TABLET_BUTTONS:\r
- return 0;\r
-\r
- case GLUT_DEVICE_IGNORE_KEY_REPEAT:\r
- return fgStructure.CurrentWindow ? fgStructure.CurrentWindow->State.IgnoreKeyRepeat : 0;\r
-\r
- case GLUT_DEVICE_KEY_REPEAT:\r
- return fgState.KeyRepeat;\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
- * This should return the current state of ALT, SHIFT and CTRL keys.\r
- */\r
-int FGAPIENTRY glutGetModifiers( void )\r
-{\r
- FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutGetModifiers" );\r
- if( fgState.Modifiers == INVALID_MODIFIERS )\r
- {\r
- fgWarning( "glutGetModifiers() called outside an input callback" );\r
- return 0;\r
- }\r
-\r
- return fgState.Modifiers;\r
-}\r
-\r
-/*\r
- * Return the state of the GLUT API overlay subsystem. A misery ;-)\r
- */\r
-int FGAPIENTRY glutLayerGet( GLenum eWhat )\r
-{\r
- FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutLayerGet" );\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
-#if TARGET_HOST_POSIX_X11\r
-\r
- case GLUT_OVERLAY_POSSIBLE:\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
-#elif TARGET_HOST_MS_WINDOWS\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
-#endif\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
-int * FGAPIENTRY glutGetModeValues(GLenum eWhat, int * size)\r
-{\r
- int * array;\r
-\r
-#if TARGET_HOST_POSIX_X11\r
- int attributes[9];\r
- GLXFBConfig * fbconfigArray; /* Array of FBConfigs */\r
- int fbconfigArraySize; /* Number of FBConfigs in the array */\r
- int attribute_name = 0;\r
-#endif\r
-\r
- FREEGLUT_EXIT_IF_NOT_INITIALISED("glutGetModeValues");\r
-\r
- array = NULL;\r
- *size = 0;\r
-\r
- switch (eWhat)\r
- {\r
-#if TARGET_HOST_POSIX_X11\r
- case GLUT_AUX:\r
- case GLUT_MULTISAMPLE:\r
-\r
- attributes[0] = GLX_BUFFER_SIZE;\r
- attributes[1] = GLX_DONT_CARE;\r
-\r
- switch (eWhat)\r
- {\r
- case GLUT_AUX:\r
- /*\r
- FBConfigs are now sorted by increasing number of auxiliary\r
- buffers. We want at least one buffer.\r
- */\r
- attributes[2] = GLX_AUX_BUFFERS;\r
- attributes[3] = 1;\r
- attributes[4] = None;\r
-\r
- attribute_name = GLX_AUX_BUFFERS;\r
-\r
- break;\r
-\r
-\r
- case GLUT_MULTISAMPLE:\r
- attributes[2] = GLX_AUX_BUFFERS;\r
- attributes[3] = GLX_DONT_CARE;\r
- attributes[4] = GLX_SAMPLE_BUFFERS;\r
- attributes[5] = 1;\r
- /*\r
- FBConfigs are now sorted by increasing number of samples per\r
- pixel. We want at least one sample.\r
- */\r
- attributes[6] = GLX_SAMPLES;\r
- attributes[7] = 1;\r
- attributes[8] = None;\r
-\r
- attribute_name = GLX_SAMPLES;\r
-\r
- break;\r
- }\r
-\r
- fbconfigArray = glXChooseFBConfig(fgDisplay.Display,\r
- fgDisplay.Screen,\r
- attributes,\r
- &fbconfigArraySize);\r
-\r
- if (fbconfigArray != NULL)\r
- {\r
- int * temp_array;\r
- int result; /* Returned by glXGetFBConfigAttrib. Not checked. */\r
- int previous_value;\r
- int i;\r
-\r
- temp_array = malloc(sizeof(int) * fbconfigArraySize);\r
- previous_value = 0;\r
-\r
- for (i = 0; i < fbconfigArraySize; i++)\r
- {\r
- int value;\r
-\r
- result = glXGetFBConfigAttrib(fgDisplay.Display,\r
- fbconfigArray[i],\r
- attribute_name,\r
- &value);\r
- if (value > previous_value)\r
- {\r
- temp_array[*size] = value;\r
- previous_value = value;\r
- (*size)++;\r
- }\r
- }\r
-\r
- array = malloc(sizeof(int) * (*size));\r
- for (i = 0; i < *size; i++)\r
- {\r
- array[i] = temp_array[i];\r
- }\r
-\r
- free(temp_array);\r
- XFree(fbconfigArray);\r
- }\r
-\r
- break;\r
-#endif \r
-\r
- default:\r
- break;\r
- }\r
-\r
- return array;\r
-}\r
-\r
-/*** END OF FILE ***/\r
+/*
+ * freeglut_state.c
+ *
+ * Freeglut state query methods.
+ *
+ * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
+ * Written by Pawel W. Olszta, <olszta@sourceforge.net>
+ * Creation date: Thu Dec 16 1999
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <GL/freeglut.h>
+#include "freeglut_internal.h"
+
+/*
+ * TODO BEFORE THE STABLE RELEASE:
+ *
+ * glutGet() -- X11 tests passed, but check if all enums
+ * handled (what about Win32?)
+ * glutDeviceGet() -- X11 tests passed, but check if all enums
+ * handled (what about Win32?)
+ * glutGetModifiers() -- OK, but could also remove the limitation
+ * glutLayerGet() -- what about GLUT_NORMAL_DAMAGED?
+ *
+ * The fail-on-call policy will help adding the most needed things imho.
+ */
+
+extern int fgPlatformGlutGet ( GLenum eWhat );
+extern int fgPlatformGlutDeviceGet ( GLenum eWhat );
+extern int *fgPlatformGlutGetModeValues(GLenum eWhat, int *size);
+
+
+/* -- LOCAL DEFINITIONS ---------------------------------------------------- */
+
+/* -- PRIVATE FUNCTIONS ---------------------------------------------------- */
+
+
+/* -- INTERFACE FUNCTIONS -------------------------------------------------- */
+
+/*
+ * General settings assignment method
+ */
+void FGAPIENTRY glutSetOption( GLenum eWhat, int value )
+{
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetOption" );
+
+ /*
+ * XXX In chronological code add order. (WHY in that order?)
+ */
+ switch( eWhat )
+ {
+ case GLUT_INIT_WINDOW_X:
+ fgState.Position.X = (GLint)value;
+ break;
+
+ case GLUT_INIT_WINDOW_Y:
+ fgState.Position.Y = (GLint)value;
+ break;
+
+ case GLUT_INIT_WINDOW_WIDTH:
+ fgState.Size.X = (GLint)value;
+ break;
+
+ case GLUT_INIT_WINDOW_HEIGHT:
+ fgState.Size.Y = (GLint)value;
+ break;
+
+ case GLUT_INIT_DISPLAY_MODE:
+ fgState.DisplayMode = (unsigned int)value;
+ break;
+
+ case GLUT_ACTION_ON_WINDOW_CLOSE:
+ fgState.ActionOnWindowClose = value;
+ break;
+
+ case GLUT_RENDERING_CONTEXT:
+ fgState.UseCurrentContext =
+ ( value == GLUT_USE_CURRENT_CONTEXT ) ? GL_TRUE : GL_FALSE;
+ break;
+
+ case GLUT_DIRECT_RENDERING:
+ fgState.DirectContext = value;
+ break;
+
+ case GLUT_WINDOW_CURSOR:
+ if( fgStructure.CurrentWindow != NULL )
+ fgStructure.CurrentWindow->State.Cursor = value;
+ break;
+
+ case GLUT_AUX:
+ fgState.AuxiliaryBufferNumber = value;
+ break;
+
+ case GLUT_MULTISAMPLE:
+ fgState.SampleNumber = value;
+ break;
+
+ default:
+ fgWarning( "glutSetOption(): missing enum handle %d", eWhat );
+ break;
+ }
+}
+
+/*
+ * General settings query method
+ */
+int FGAPIENTRY glutGet( GLenum eWhat )
+{
+ switch (eWhat)
+ {
+ case GLUT_INIT_STATE:
+ return fgState.Initialised;
+
+ case GLUT_ELAPSED_TIME:
+ return fgElapsedTime();
+ }
+
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutGet" );
+
+ /* XXX In chronological code add order. (WHY in that order?) */
+ switch( eWhat )
+ {
+ /* Following values are stored in fgState and fgDisplay global structures */
+ case GLUT_SCREEN_WIDTH: return fgDisplay.ScreenWidth ;
+ case GLUT_SCREEN_HEIGHT: return fgDisplay.ScreenHeight ;
+ case GLUT_SCREEN_WIDTH_MM: return fgDisplay.ScreenWidthMM ;
+ case GLUT_SCREEN_HEIGHT_MM: return fgDisplay.ScreenHeightMM;
+ case GLUT_INIT_WINDOW_X: return fgState.Position.Use ?
+ fgState.Position.X : -1 ;
+ case GLUT_INIT_WINDOW_Y: return fgState.Position.Use ?
+ fgState.Position.Y : -1 ;
+ case GLUT_INIT_WINDOW_WIDTH: return fgState.Size.Use ?
+ fgState.Size.X : -1 ;
+ case GLUT_INIT_WINDOW_HEIGHT: return fgState.Size.Use ?
+ fgState.Size.Y : -1 ;
+ case GLUT_INIT_DISPLAY_MODE: return fgState.DisplayMode ;
+ case GLUT_INIT_MAJOR_VERSION: return fgState.MajorVersion ;
+ case GLUT_INIT_MINOR_VERSION: return fgState.MinorVersion ;
+ case GLUT_INIT_FLAGS: return fgState.ContextFlags ;
+ case GLUT_INIT_PROFILE: return fgState.ContextProfile ;
+
+ /* The window structure queries */
+ case GLUT_WINDOW_PARENT:
+ if( fgStructure.CurrentWindow == NULL ) return 0;
+ if( fgStructure.CurrentWindow->Parent == NULL ) return 0;
+ return fgStructure.CurrentWindow->Parent->ID;
+
+ case GLUT_WINDOW_NUM_CHILDREN:
+ if( fgStructure.CurrentWindow == NULL )
+ return 0;
+ return fgListLength( &fgStructure.CurrentWindow->Children );
+
+ case GLUT_WINDOW_CURSOR:
+ if( fgStructure.CurrentWindow == NULL )
+ return 0;
+ return fgStructure.CurrentWindow->State.Cursor;
+
+ case GLUT_MENU_NUM_ITEMS:
+ if( fgStructure.CurrentMenu == NULL )
+ return 0;
+ return fgListLength( &fgStructure.CurrentMenu->Entries );
+
+ case GLUT_ACTION_ON_WINDOW_CLOSE:
+ return fgState.ActionOnWindowClose;
+
+ case GLUT_VERSION :
+ return VERSION_MAJOR * 10000 + VERSION_MINOR * 100 + VERSION_PATCH;
+
+ case GLUT_RENDERING_CONTEXT:
+ return fgState.UseCurrentContext ? GLUT_USE_CURRENT_CONTEXT
+ : GLUT_CREATE_NEW_CONTEXT;
+
+ case GLUT_DIRECT_RENDERING:
+ return fgState.DirectContext;
+
+ case GLUT_FULL_SCREEN:
+ return fgStructure.CurrentWindow->State.IsFullscreen;
+
+ case GLUT_AUX:
+ return fgState.AuxiliaryBufferNumber;
+
+ case GLUT_MULTISAMPLE:
+ return fgState.SampleNumber;
+
+ default:
+ return fgPlatformGlutGet ( eWhat );
+ break;
+ }
+ return -1;
+}
+
+/*
+ * Returns various device information.
+ */
+int FGAPIENTRY glutDeviceGet( GLenum eWhat )
+{
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutDeviceGet" );
+
+ /* XXX WARNING: we are mostly lying in this function. */
+ switch( eWhat )
+ {
+ case GLUT_HAS_JOYSTICK:
+ return fgJoystickDetect ();
+
+ case GLUT_OWNS_JOYSTICK:
+ return fgState.JoysticksInitialised;
+
+ case GLUT_JOYSTICK_POLL_RATE:
+ return fgStructure.CurrentWindow ? fgStructure.CurrentWindow->State.JoystickPollRate : 0;
+
+ /* XXX The following two are only for Joystick 0 but this is an improvement */
+ case GLUT_JOYSTICK_BUTTONS:
+ return glutJoystickGetNumButtons ( 0 );
+
+ case GLUT_JOYSTICK_AXES:
+ return glutJoystickGetNumAxes ( 0 );
+
+ case GLUT_HAS_DIAL_AND_BUTTON_BOX:
+ return fgInputDeviceDetect ();
+
+ case GLUT_NUM_DIALS:
+ if ( fgState.InputDevsInitialised ) return 8;
+ return 0;
+
+ case GLUT_NUM_BUTTON_BOX_BUTTONS:
+ return 0;
+
+ case GLUT_HAS_SPACEBALL:
+ return fgHasSpaceball();
+
+ case GLUT_HAS_TABLET:
+ return 0;
+
+ case GLUT_NUM_SPACEBALL_BUTTONS:
+ return fgSpaceballNumButtons();
+
+ case GLUT_NUM_TABLET_BUTTONS:
+ return 0;
+
+ case GLUT_DEVICE_IGNORE_KEY_REPEAT:
+ return fgStructure.CurrentWindow ? fgStructure.CurrentWindow->State.IgnoreKeyRepeat : 0;
+
+ case GLUT_DEVICE_KEY_REPEAT:
+ return fgState.KeyRepeat;
+
+ default:
+ return fgPlatformGlutDeviceGet ( eWhat );
+ }
+
+ /* And now -- the failure. */
+ return -1;
+}
+
+/*
+ * This should return the current state of ALT, SHIFT and CTRL keys.
+ */
+int FGAPIENTRY glutGetModifiers( void )
+{
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutGetModifiers" );
+ if( fgState.Modifiers == INVALID_MODIFIERS )
+ {
+ fgWarning( "glutGetModifiers() called outside an input callback" );
+ return 0;
+ }
+
+ return fgState.Modifiers;
+}
+
+/*
+ * Return the state of the GLUT API overlay subsystem. A misery ;-)
+ */
+int FGAPIENTRY glutLayerGet( GLenum eWhat )
+{
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutLayerGet" );
+
+ /*
+ * This is easy as layers are not implemented and
+ * overlay support is not planned. E.g. on Windows,
+ * overlay requests in PFDs are ignored
+ * (see iLayerType at http://msdn.microsoft.com/en-us/library/dd368826(v=vs.85).aspx)
+ */
+ switch( eWhat )
+ {
+
+ case GLUT_OVERLAY_POSSIBLE:
+ return 0 ;
+
+ case GLUT_LAYER_IN_USE:
+ return GLUT_NORMAL;
+
+ case GLUT_HAS_OVERLAY:
+ return 0;
+
+ case GLUT_TRANSPARENT_INDEX:
+ /*
+ * Return just anything, which is always defined as zero
+ *
+ * XXX HUH?
+ */
+ return 0;
+
+ case GLUT_NORMAL_DAMAGED:
+ /* XXX Actually I do not know. Maybe. */
+ return 0;
+
+ case GLUT_OVERLAY_DAMAGED:
+ return -1;
+
+ default:
+ fgWarning( "glutLayerGet(): missing enum handle %d", eWhat );
+ break;
+ }
+
+ /* And fail. That's good. Programs do love failing. */
+ return -1;
+}
+
+int * FGAPIENTRY glutGetModeValues(GLenum eWhat, int *size)
+{
+ int *array;
+
+ FREEGLUT_EXIT_IF_NOT_INITIALISED("glutGetModeValues");
+
+ *size = 0;
+ array = fgPlatformGlutGetModeValues ( eWhat, size );
+
+ return array;
+}
+
+/*** END OF FILE ***/
projects / freeglut / blobdiff