X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=freeglut-1.3%2Ffreeglut_state.c;fp=freeglut-1.3%2Ffreeglut_state.c;h=0000000000000000000000000000000000000000;hb=0f383e3d13b0f62aa4a8e34c2ad5a3a2c8aabd71;hp=cb40f059990609153807e19cf091b50a2fff9eac;hpb=9b5ed2940eac112c894bb43f802fbda5b1c8b27a;p=freeglut diff --git a/freeglut-1.3/freeglut_state.c b/freeglut-1.3/freeglut_state.c deleted file mode 100644 index cb40f05..0000000 --- a/freeglut-1.3/freeglut_state.c +++ /dev/null @@ -1,704 +0,0 @@ -/* - * freeglut_state.c - * - * Freeglut state query methods. - * - * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved. - * Written by Pawel W. Olszta, - * 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. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#define G_LOG_DOMAIN "freeglut-state" - -#include "../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. - */ - -/* -- LOCAL DEFINITIONS ---------------------------------------------------- */ - -/* -- PRIVATE FUNCTIONS ---------------------------------------------------- */ - -#if TARGET_HOST_UNIX_X11 -/* - * Queries the GL context about some attributes - */ -static int fghGetConfig( int attribute ) -{ - int returnValue ; - - /* - * Return nothing if there is no current window set - */ - if( fgStructure.Window == NULL ) - return( 0 ); - - /* - * glXGetConfig should work fine - */ - glXGetConfig( fgDisplay.Display, fgStructure.Window->Window.VisualInfo, attribute, &returnValue ); - - - /* - * Have the query results returned - */ - return ( returnValue ) ; -} -#endif - -/* -- INTERFACE FUNCTIONS -------------------------------------------------- */ - -/* - * General settings assignment method - */ -void FGAPIENTRY glutSetOption( GLenum eWhat, int value ) -{ - freeglut_assert_ready; - - /* - * Check what is the caller querying for. In chronological code add 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_WINDOW_CURSOR: - if( fgStructure.Window != NULL ) fgStructure.Window->State.Cursor = value ; - break ; - - default: - /* - * Just have it reported, so that we can see what needs to be implemented - */ - fgWarning( "glutSetOption(): missing enum handle %i\n", eWhat ); - break; - } -} - -/* - * General settings query method - */ -int FGAPIENTRY glutGet( GLenum eWhat ) -{ - int returnValue ; - GLboolean boolValue ; - - if ( eWhat == GLUT_INIT_STATE ) - return ( fgState.Time.Set ) ; - - freeglut_assert_ready; - - /* - * Check what is the caller querying for. In chronological code add order. - */ - switch( eWhat ) - { - case GLUT_ELAPSED_TIME: - /* - * This is easy and nicely portable, as we are using GLib... - */ - return( fgElapsedTime() ); - - /* - * 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.X ); - case GLUT_INIT_WINDOW_Y: return( fgState.Position.Y ); - case GLUT_INIT_WINDOW_WIDTH: return( fgState.Size.X ); - case GLUT_INIT_WINDOW_HEIGHT: return( fgState.Size.Y ); - case GLUT_INIT_DISPLAY_MODE: return( fgState.DisplayMode ); - - /* - * The window/context specific queries are handled mostly by fghGetConfig(). - */ - case GLUT_WINDOW_NUM_SAMPLES: - /* - * Multisampling. Return what I know about multisampling. - */ - return( 0 ); - -#if TARGET_HOST_UNIX_X11 - /* - * The rest of GLX queries under X are general enough to use a macro to check them - */ -# define GLX_QUERY(a,b) case a: return( fghGetConfig( b ) ); - - GLX_QUERY( GLUT_WINDOW_RGBA, GLX_RGBA ); - GLX_QUERY( GLUT_WINDOW_DOUBLEBUFFER, GLX_DOUBLEBUFFER ); - GLX_QUERY( GLUT_WINDOW_BUFFER_SIZE, GLX_BUFFER_SIZE ); - GLX_QUERY( GLUT_WINDOW_STENCIL_SIZE, GLX_STENCIL_SIZE ); - GLX_QUERY( GLUT_WINDOW_DEPTH_SIZE, GLX_DEPTH_SIZE ); - GLX_QUERY( GLUT_WINDOW_RED_SIZE, GLX_RED_SIZE ); - GLX_QUERY( GLUT_WINDOW_GREEN_SIZE, GLX_GREEN_SIZE ); - GLX_QUERY( GLUT_WINDOW_BLUE_SIZE, GLX_BLUE_SIZE ); - GLX_QUERY( GLUT_WINDOW_ALPHA_SIZE, GLX_ALPHA_SIZE ); - GLX_QUERY( GLUT_WINDOW_ACCUM_RED_SIZE, GLX_ACCUM_RED_SIZE ); - GLX_QUERY( GLUT_WINDOW_ACCUM_GREEN_SIZE, GLX_ACCUM_GREEN_SIZE ); - GLX_QUERY( GLUT_WINDOW_ACCUM_BLUE_SIZE, GLX_ACCUM_BLUE_SIZE ); - GLX_QUERY( GLUT_WINDOW_ACCUM_ALPHA_SIZE, GLX_ACCUM_ALPHA_SIZE ); - GLX_QUERY( GLUT_WINDOW_STEREO, GLX_STEREO ); - -# undef GLX_QUERY - - /* - * Colormap size is handled in a bit different way than all the rest - */ - case GLUT_WINDOW_COLORMAP_SIZE: - /* - * Check for the visual type - */ - if( (fghGetConfig( GLX_RGBA )) || (fgStructure.Window == NULL) ) - { - /* - * We've got a RGBA visual, so there is no colormap at all. - * The other possibility is that we have no current window set. - */ - return( 0 ); - } - - /* - * Otherwise return the number of entries in the colormap - */ - return( fgStructure.Window->Window.VisualInfo->visual->map_entries ); - - /* - * Those calls are somewhat similiar, as they use XGetWindowAttributes() function - */ - case GLUT_WINDOW_X: - case GLUT_WINDOW_Y: - case GLUT_WINDOW_WIDTH: - case GLUT_WINDOW_HEIGHT: - case GLUT_WINDOW_BORDER_WIDTH : - case GLUT_WINDOW_HEADER_HEIGHT : - { - XWindowAttributes winAttributes; - - /* - * Return zero if there is no current window set - */ - if( fgStructure.Window == NULL ) - return( 0 ); - - /* - * Grab the current window's attributes now - */ - XGetWindowAttributes( - fgDisplay.Display, - fgStructure.Window->Window.Handle, - &winAttributes - ); - - /* - * See which window attribute to return - */ - switch ( eWhat ) - { - case GLUT_WINDOW_X: return winAttributes.x ; - case GLUT_WINDOW_Y: return winAttributes.y ; - case GLUT_WINDOW_WIDTH: return winAttributes.width ; - case GLUT_WINDOW_HEIGHT: return winAttributes.height ; - case GLUT_WINDOW_BORDER_WIDTH : return winAttributes.border_width ; - case GLUT_WINDOW_HEADER_HEIGHT : return winAttributes.border_width * 3 ; /* a kludge for now */ - } - } - - /* - * I do not know yet if there will be a fgChooseVisual() function for Win32 - */ - case GLUT_DISPLAY_MODE_POSSIBLE: - /* - * Check if the current display mode is possible - */ - return( fgChooseVisual() == NULL ? 0 : 1 ); - - /* - * This is system-dependant - */ - case GLUT_WINDOW_FORMAT_ID: - /* - * Return the visual ID, if there is a current window naturally: - */ - if( fgStructure.Window == NULL ) - return( 0 ); - - return( fgStructure.Window->Window.VisualInfo->visualid ); - -#elif TARGET_HOST_WIN32 - - /* - * Handle the OpenGL inquiries - */ - case GLUT_WINDOW_RGBA: - glGetBooleanv ( GL_RGBA_MODE, &boolValue ) ; /* True if color buffers store RGBA */ - returnValue = boolValue ? 1 : 0 ; - return ( returnValue ) ; - case GLUT_WINDOW_DOUBLEBUFFER: - glGetBooleanv ( GL_DOUBLEBUFFER, &boolValue ) ; /* True if front and back buffers exist */ - returnValue = boolValue ? 1 : 0 ; - return ( returnValue ) ; - case GLUT_WINDOW_STEREO: - glGetBooleanv ( GL_STEREO, &boolValue ) ; /* True if left and right buffers exist */ - returnValue = boolValue ? 1 : 0 ; - return ( returnValue ) ; - - case GLUT_WINDOW_RED_SIZE: - glGetIntegerv ( GL_RED_BITS, &returnValue ) ; /* Number of bits per red component in color buffers */ - return ( returnValue ) ; - case GLUT_WINDOW_GREEN_SIZE: - glGetIntegerv ( GL_GREEN_BITS, &returnValue ) ; /* Number of bits per green component in color buffers */ - return ( returnValue ) ; - case GLUT_WINDOW_BLUE_SIZE: - glGetIntegerv ( GL_BLUE_BITS, &returnValue ) ; /* Number of bits per blue component in color buffers */ - return ( returnValue ) ; - case GLUT_WINDOW_ALPHA_SIZE: - glGetIntegerv ( GL_ALPHA_BITS, &returnValue ) ; /* Number of bits per alpha component in color buffers */ - return ( returnValue ) ; - case GLUT_WINDOW_ACCUM_RED_SIZE: - glGetIntegerv ( GL_ACCUM_RED_BITS, &returnValue ) ; /* Number of bits per red component in the accumulation buffer */ - return ( returnValue ) ; - case GLUT_WINDOW_ACCUM_GREEN_SIZE: - glGetIntegerv ( GL_ACCUM_GREEN_BITS, &returnValue ) ; /* Number of bits per green component in the accumulation buffer */ - return ( returnValue ) ; - case GLUT_WINDOW_ACCUM_BLUE_SIZE: - glGetIntegerv ( GL_ACCUM_BLUE_BITS, &returnValue ) ; /* Number of bits per blue component in the accumulation buffer */ - return ( returnValue ) ; - case GLUT_WINDOW_ACCUM_ALPHA_SIZE: - glGetIntegerv ( GL_ACCUM_ALPHA_BITS, &returnValue ) ; /* Number of bits per alpha component in the accumulation buffer */ - return ( returnValue ) ; - case GLUT_WINDOW_DEPTH_SIZE: - glGetIntegerv ( GL_DEPTH_BITS, &returnValue ) ; /* Number of depth-buffer bitplanes */ - return ( returnValue ) ; - - case GLUT_WINDOW_BUFFER_SIZE: - returnValue = 1 ; /* ????? */ - return ( returnValue ) ; - case GLUT_WINDOW_STENCIL_SIZE: - returnValue = 0 ; /* ????? */ - return ( returnValue ) ; - - /* - * Window position and size - */ - case GLUT_WINDOW_X: - case GLUT_WINDOW_Y: - case GLUT_WINDOW_WIDTH: - case GLUT_WINDOW_HEIGHT: - { - /* - * There is considerable confusion about the "right thing to do" concerning window - * size and position. GLUT itself is not consistent between Windows and Linux; since - * platform independence is a virtue for "freeglut", we decided to break with GLUT's - * behaviour. - * Under Linux, it is apparently not possible to get the window border sizes in order - * to subtract them off the window's initial position until some time after the window - * has been created. Therefore we decided on the following behaviour, both under - * Windows and under Linux: - * - When you create a window with position (x,y) and size (w,h), the upper left hand - * corner of the outside of the window is at (x,y) and the size of the drawable area - * is (w,h). - * - When you query the size and position of the window--as is happening here for - * Windows--"freeglut" will return the size of the drawable area--the (w,h) that you - * specified when you created the window--and the coordinates of the upper left hand - * corner of the drawable area--which is NOT the (x,y) you specified. - */ - - RECT winRect; - - /* - * Check if there is a window to be queried for dimensions: - */ - freeglut_return_val_if_fail( fgStructure.Window != NULL, 0 ); - - /* - * We need to call GetWindowRect() first... - * (this returns the pixel coordinates of the outside of the window) - */ - GetWindowRect( fgStructure.Window->Window.Handle, &winRect ); - - /* - * ...then we've got to correct the results we've just received... - */ - if (fgStructure.GameMode != fgStructure.Window && - fgStructure.Window->Parent == NULL ) - { - winRect.left += GetSystemMetrics( SM_CXSIZEFRAME ); - winRect.right -= GetSystemMetrics( SM_CXSIZEFRAME ); - winRect.top += GetSystemMetrics( SM_CYSIZEFRAME ) + GetSystemMetrics( SM_CYCAPTION ); - winRect.bottom -= GetSystemMetrics( SM_CYSIZEFRAME ); - } - - /* - * ...and finally return the caller the desired value: - */ - switch( eWhat ) - { - case GLUT_WINDOW_X: return( winRect.left ); - case GLUT_WINDOW_Y: return( winRect.top ); - case GLUT_WINDOW_WIDTH: return( winRect.right - winRect.left ); - case GLUT_WINDOW_HEIGHT: return( winRect.bottom - winRect.top ); - } - } - break; - - case GLUT_WINDOW_BORDER_WIDTH : - return ( GetSystemMetrics( SM_CXSIZEFRAME ) ) ; - - case GLUT_WINDOW_HEADER_HEIGHT : - return ( GetSystemMetrics( SM_CYCAPTION ) ) ; - - case GLUT_DISPLAY_MODE_POSSIBLE: - /* - * Check if the current display mode is possible - */ - return( fgSetupPixelFormat( fgStructure.Window, TRUE, PFD_MAIN_PLANE ) ); - - case GLUT_WINDOW_FORMAT_ID: - /* - * Return the pixel format of the current window - */ - if( fgStructure.Window != NULL ) - return( GetPixelFormat( fgStructure.Window->Window.Device ) ); - - /* - * If the current window does not exist, fail: - */ - return( 0 ); - -#endif - - /* - * The window structure queries - */ - case GLUT_WINDOW_PARENT: - /* - * Return the ID number of current window's parent, if any - */ - if( fgStructure.Window == NULL ) return( 0 ); - if( fgStructure.Window->Parent == NULL ) return( 0 ); - - return( fgStructure.Window->Parent->ID ); - - case GLUT_WINDOW_NUM_CHILDREN: - /* - * Return the number of children attached to the current window - */ - if( fgStructure.Window == NULL ) - return( 0 ); - - return( fgListLength( &fgStructure.Window->Children ) ); - - case GLUT_WINDOW_CURSOR: - /* - * Return the currently selected window cursor - */ - if( fgStructure.Window == NULL ) - return( 0 ); - - return( fgStructure.Window->State.Cursor ); - - case GLUT_MENU_NUM_ITEMS: - /* - * Return the number of menu entries in the current menu - */ - if( fgStructure.Menu == NULL ) - return( 0 ); - - return( fgListLength( &fgStructure.Menu->Entries ) ); - - case GLUT_ACTION_ON_WINDOW_CLOSE: - return fgState.ActionOnWindowClose; - - case GLUT_VERSION: - return VERSION_MAJOR * 10000 + VERSION_MINOR * 100 + VERSION_PATCH; - - default: - /* - * Just have it reported, so that we can see what needs to be implemented - */ - fgWarning( "glutGet(): missing enum handle %i\n", eWhat ); - break; - } - - /* - * If nothing happens, then we are in deep trouble... - */ - return( -1 ); -} - -/* - * Returns various device information. - */ -int FGAPIENTRY glutDeviceGet( GLenum eWhat ) -{ - freeglut_assert_ready; - - /* - * See why are we bothered... - * - * WARNING: we are mostly lying in this function. - */ - switch( eWhat ) - { - case GLUT_HAS_KEYBOARD: - /* - * We always have a keyboard present on PC machines... - */ - return( TRUE ); - -#if TARGET_HOST_UNIX_X11 - - case GLUT_HAS_MOUSE: - /* - * Hey, my Atari 65XE hasn't had a mouse! - */ - return( TRUE ); - - case GLUT_NUM_MOUSE_BUTTONS: - /* - * Return the number of mouse buttons available. This is a big guess. - */ - return( 3 ); - -#elif TARGET_HOST_WIN32 - - case GLUT_HAS_MOUSE: - /* - * The Windows can be booted without a mouse. - * It would be nice to have this reported. - */ - return( GetSystemMetrics( SM_MOUSEPRESENT ) ); - - case GLUT_NUM_MOUSE_BUTTONS: - /* - * We are much more fortunate under Win32 about this... - */ - return( GetSystemMetrics( SM_CMOUSEBUTTONS ) ); - -#endif - - case GLUT_JOYSTICK_POLL_RATE: - case GLUT_HAS_JOYSTICK: - case GLUT_JOYSTICK_BUTTONS: - case GLUT_JOYSTICK_AXES: - /* - * WARNING: THIS IS A BIG LIE! - */ - return( 0 ); - - case GLUT_HAS_SPACEBALL: - case GLUT_HAS_DIAL_AND_BUTTON_BOX: - case GLUT_HAS_TABLET: - /* - * Sounds cool. And unuseful. - */ - return( FALSE ); - - case GLUT_NUM_SPACEBALL_BUTTONS: - case GLUT_NUM_BUTTON_BOX_BUTTONS: - case GLUT_NUM_DIALS: - case GLUT_NUM_TABLET_BUTTONS: - /* - * Zero is not the answer. Zero is the question. Continuum is the answer. - */ - return( 0 ); - - case GLUT_DEVICE_IGNORE_KEY_REPEAT: - /* - * Return what we think about the key auto repeat settings - */ - return( fgState.IgnoreKeyRepeat ); - - case GLUT_DEVICE_KEY_REPEAT: - /* - * WARNING: THIS IS A BIG LIE! - */ - return( GLUT_KEY_REPEAT_DEFAULT ); - - default: - /* - * Complain. - */ - fgWarning( "glutDeviceGet(): missing enum handle %i\n", eWhat ); - break; - } - - /* - * And now -- the failure. - */ - return( -1 ); -} - -/* - * This should return the current state of ALT, SHIFT and CTRL keys. - */ -int FGAPIENTRY glutGetModifiers( void ) -{ - /* - * Fail if there is no current window or called outside an input callback - */ - if( fgStructure.Window == NULL ) - return( 0 ); - - if( fgStructure.Window->State.Modifiers == 0xffffffff ) - { - fgWarning( "glutGetModifiers() called outside an input callback" ); - return( 0 ); - } - - /* - * Return the current modifiers state otherwise - */ - return( fgStructure.Window->State.Modifiers ); -} - -/* - * Return the state of the GLUT API overlay subsystem. A misery ;-) - */ -int FGAPIENTRY glutLayerGet( GLenum eWhat ) -{ - freeglut_assert_ready; - - /* - * This is easy as layers are not implemented ;-) - */ - switch( eWhat ) - { - -#if TARGET_HOST_UNIX_X11 - - case GLUT_OVERLAY_POSSIBLE: - /* - * Nope, overlays are not possible. - */ - return( FALSE ); - - case GLUT_LAYER_IN_USE: - /* - * The normal plane is always in use - */ - return( GLUT_NORMAL ); - - case GLUT_HAS_OVERLAY: - /* - * No window is allowed to have an overlay - */ - return( FALSE ); - - case GLUT_TRANSPARENT_INDEX: - /* - * Return just anything, which is always defined as zero - */ - return( 0 ); - - case GLUT_NORMAL_DAMAGED: - /* - * Actually I do not know. Maybe. - */ - return( FALSE ); - - case GLUT_OVERLAY_DAMAGED: - /* - * Return minus one to mark that no layer is in use - */ - return( -1 ); - -#elif TARGET_HOST_WIN32 - - case GLUT_OVERLAY_POSSIBLE: - /* - * Check if an overlay display mode is possible - */ - return( fgSetupPixelFormat( fgStructure.Window, TRUE, PFD_OVERLAY_PLANE ) ); - - case GLUT_LAYER_IN_USE: - /* - * The normal plane is always in use - */ - return( GLUT_NORMAL ); - - case GLUT_HAS_OVERLAY: - /* - * No window is allowed to have an overlay - */ - return( FALSE ); - - case GLUT_TRANSPARENT_INDEX: - /* - * Return just anything, which is always defined as zero - */ - return( 0 ); - - case GLUT_NORMAL_DAMAGED: - /* - * Actually I do not know. Maybe. - */ - return( FALSE ); - - case GLUT_OVERLAY_DAMAGED: - /* - * Return minus one to mark that no layer is in use - */ - return( -1 ); -#endif - - default: - /* - * Complain to the user about the obvious bug - */ - fgWarning( "glutLayerGet(): missing enum handle %i\n", eWhat ); - break; - } - - /* - * And fail. That's good. Programs do love failing. - */ - return( -1 ); -} - -/*** END OF FILE ***/