X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2FCommon%2Ffreeglut_display.c;h=6421be443b964067c90fd20d6fd5378788cf967d;hb=1ede9f68f98e29ddd07bd466310967e716bfac92;hp=fadd3b360c8a61a912580a261a4d45f4b91da6e2;hpb=d2f7ea29ea6d946f455f4363c3f058ff2bdfba35;p=freeglut diff --git a/src/Common/freeglut_display.c b/src/Common/freeglut_display.c index fadd3b3..6421be4 100644 --- a/src/Common/freeglut_display.c +++ b/src/Common/freeglut_display.c @@ -1,103 +1,104 @@ -/* - * freeglut_display.c - * - * Display message posting, context buffer swapping. - * - * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved. - * Written by Pawel W. Olszta, - * Creation date: Fri Dec 3 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 -#include "freeglut_internal.h" - -/* -- INTERFACE FUNCTIONS -------------------------------------------------- */ - -/* - * Marks the current window to have the redisplay performed when possible... - */ -void FGAPIENTRY glutPostRedisplay( void ) -{ - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPostRedisplay" ); - if ( ! fgStructure.CurrentWindow ) - { - fgError ( " ERROR: Function <%s> called" - " with no current window defined.", "glutPostRedisplay" ) ; - } - - fgStructure.CurrentWindow->State.Redisplay = GL_TRUE; -} - -/* - * Swaps the buffers for the current window (if any) - */ -void FGAPIENTRY glutSwapBuffers( void ) -{ - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSwapBuffers" ); - FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSwapBuffers" ); - - /* - * "glXSwapBuffers" already performs an implicit call to "glFlush". What - * about "SwapBuffers"? - */ - glFlush( ); - if( ! fgStructure.CurrentWindow->Window.DoubleBuffered ) - return; - -#if TARGET_HOST_POSIX_X11 - glXSwapBuffers( fgDisplay.Display, fgStructure.CurrentWindow->Window.Handle ); -#elif TARGET_HOST_MS_WINDOWS - SwapBuffers( fgStructure.CurrentWindow->Window.Device ); -#endif - - /* GLUT_FPS env var support */ - if( fgState.FPSInterval ) - { - GLint t = glutGet( GLUT_ELAPSED_TIME ); - fgState.SwapCount++; - if( fgState.SwapTime == 0 ) - fgState.SwapTime = t; - else if( t - fgState.SwapTime > fgState.FPSInterval ) - { - float time = 0.001f * ( t - fgState.SwapTime ); - float fps = ( float )fgState.SwapCount / time; - fprintf( stderr, - "freeglut: %d frames in %.2f seconds = %.2f FPS\n", - fgState.SwapCount, time, fps ); - fgState.SwapTime = t; - fgState.SwapCount = 0; - } - } -} - -/* - * Mark appropriate window to be displayed - */ -void FGAPIENTRY glutPostWindowRedisplay( int windowID ) -{ - SFG_Window* window; - - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPostWindowRedisplay" ); - window = fgWindowByID( windowID ); - freeglut_return_if_fail( window ); - window->State.Redisplay = GL_TRUE; -} - -/*** END OF FILE ***/ +/* + * freeglut_display.c + * + * Display message posting, context buffer swapping. + * + * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved. + * Written by Pawel W. Olszta, + * Creation date: Fri Dec 3 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 +#include "freeglut_internal.h" + + +/* Function prototypes */ +extern void fgPlatformGlutSwapBuffers( SFG_PlatformDisplay *pDisplayPtr, SFG_Window* CurrentWindow ); + + +/* -- INTERFACE FUNCTIONS -------------------------------------------------- */ + +/* + * Marks the current window to have the redisplay performed when possible... + */ +void FGAPIENTRY glutPostRedisplay( void ) +{ + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPostRedisplay" ); + if ( ! fgStructure.CurrentWindow ) + { + fgError ( " ERROR: Function <%s> called" + " with no current window defined.", "glutPostRedisplay" ) ; + } + + fgStructure.CurrentWindow->State.Redisplay = GL_TRUE; +} + +/* + * Swaps the buffers for the current window (if any) + */ +void FGAPIENTRY glutSwapBuffers( void ) +{ + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSwapBuffers" ); + FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSwapBuffers" ); + + /* + * "glXSwapBuffers" already performs an implicit call to "glFlush". What + * about "SwapBuffers"? + */ + glFlush( ); + if( ! fgStructure.CurrentWindow->Window.DoubleBuffered ) + return; + + fgPlatformGlutSwapBuffers( &fgDisplay.pDisplay, fgStructure.CurrentWindow ); + + /* GLUT_FPS env var support */ + if( fgState.FPSInterval ) + { + GLint t = glutGet( GLUT_ELAPSED_TIME ); + fgState.SwapCount++; + if( fgState.SwapTime == 0 ) + fgState.SwapTime = t; + else if( t - fgState.SwapTime > fgState.FPSInterval ) + { + float time = 0.001f * ( t - fgState.SwapTime ); + float fps = ( float )fgState.SwapCount / time; + fprintf( stderr, + "freeglut: %d frames in %.2f seconds = %.2f FPS\n", + fgState.SwapCount, time, fps ); + fgState.SwapTime = t; + fgState.SwapCount = 0; + } + } +} + +/* + * Mark appropriate window to be displayed + */ +void FGAPIENTRY glutPostWindowRedisplay( int windowID ) +{ + SFG_Window* window; + + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPostWindowRedisplay" ); + window = fgWindowByID( windowID ); + freeglut_return_if_fail( window ); + window->State.Redisplay = GL_TRUE; +} + +/*** END OF FILE ***/