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Adding support for the multisampling query per bug report 1274193

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git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@704 7f0cb862-5218-0410-a997-914c9d46530a
This commit is contained in:
fayjf 2006-09-21 22:39:12 +00:00
parent 938aa5fa90
commit 94662b8d1b
2 changed files with 27 additions and 7 deletions
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24
freeglut/freeglut/src/freeglut_state.c
View File

@ -119,6 +119,16 @@ void FGAPIENTRY glutSetOption( GLenum eWhat, int value )
}
}
#if TARGET_HOST_MS_WINDOWS
/* WRONG-- FIXME */
/* The following include file is available from SGI but is not standard:
* #include <GL/wglext.h>
* So we copy the necessary parts out of it to support the multisampling query
*/
#define WGL_SAMPLES_ARB 0x2042
#endif
/*
* General settings query method
*/
@ -129,6 +139,8 @@ int FGAPIENTRY glutGet( GLenum eWhat )
GLboolean boolValue ;
#endif
int nsamples = 0;
switch (eWhat)
{
case GLUT_INIT_STATE:
@ -154,15 +166,17 @@ int FGAPIENTRY glutGet( GLenum eWhat )
case GLUT_INIT_WINDOW_HEIGHT: return fgState.Size.Y ;
case GLUT_INIT_DISPLAY_MODE: return fgState.DisplayMode ;
#if TARGET_HOST_POSIX_X11
/*
* The window/context specific queries are handled mostly by
* fghGetConfig().
*/
case GLUT_WINDOW_NUM_SAMPLES:
/* XXX Multisampling. Return what I know about multisampling. */
return 0;
#ifdef GLX_VERSION_1_3
glGetIntegerv(GL_SAMPLES, &nsamples);
#endif
return nsamples;
#if TARGET_HOST_POSIX_X11
/*
* The rest of GLX queries under X are general enough to use a macro to
* check them
@ -279,6 +293,10 @@ int FGAPIENTRY glutGet( GLenum eWhat )
#elif TARGET_HOST_MS_WINDOWS
case GLUT_WINDOW_NUM_SAMPLES:
glGetIntegerv(WGL_SAMPLES_ARB, &nsamples);
return nsamples;
/* Handle the OpenGL inquiries */
case GLUT_WINDOW_RGBA:
glGetBooleanv ( GL_RGBA_MODE, &boolValue );

10
freeglut/freeglut/src/freeglut_window.c
View File

@ -433,10 +433,12 @@ void fgOpenWindow( SFG_Window* window, const char* title,
fgState.DisplayMode &= ~GLUT_DOUBLE;
}
/*
* GLUT also checks for multi-sampling, but I don't see that
* anywhere else in FREEGLUT so I won't bother with it for the moment.
*/
if( fgState.DisplayMode & GLUT_MULTISAMPLE )
{
fgState.DisplayMode &= ~GLUT_MULTISAMPLE ;
window->Window.VisualInfo = fgChooseVisual( );
fgState.DisplayMode &= GLUT_MULTISAMPLE;
}
}
FREEGLUT_INTERNAL_ERROR_EXIT( window->Window.VisualInfo != NULL,