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Moving Windows-specific "glutGet" code into its own file

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git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@997 7f0cb862-5218-0410-a997-914c9d46530a
This commit is contained in:
fayjf 2012-01-23 04:06:48 +00:00
parent 80f6707bf4
commit c9e93c29b3
2 changed files with 343 additions and 294 deletions
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384
freeglut/freeglut/src/Common/freeglut_state.c
View File

@ -41,6 +41,8 @@
* The fail-on-call policy will help adding the most needed things imho.
*/
extern int fgPlatformGlutGet ( GLenum eWhat );
/* -- LOCAL DEFINITIONS ---------------------------------------------------- */
/* -- PRIVATE FUNCTIONS ---------------------------------------------------- */
@ -62,129 +64,13 @@ static int fghGetConfig( int attribute )
return returnValue;
}
#endif
/* -- INTERFACE FUNCTIONS -------------------------------------------------- */
/*
* General settings assignment method
*/
void FGAPIENTRY glutSetOption( GLenum eWhat, int value )
static int fgPlatformGlutGet ( GLenum eWhat )
{
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;
}
}
#if TARGET_HOST_MS_WINDOWS
/* 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
*/
int FGAPIENTRY glutGet( GLenum eWhat )
{
#if TARGET_HOST_MS_WINDOWS
int returnValue ;
GLboolean boolValue ;
#endif
int nsamples = 0;
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 ;
#if TARGET_HOST_POSIX_X11
/*
* The window/context specific queries are handled mostly by
* fghGetConfig().
@ -332,184 +218,116 @@ int FGAPIENTRY glutGet( GLenum eWhat )
return fghGetConfig( GLX_VISUAL_ID );
#elif TARGET_HOST_MS_WINDOWS
default:
fgWarning( "glutGet(): missing enum handle %d", eWhat );
break;
}
}
#endif
case GLUT_WINDOW_NUM_SAMPLES:
glGetIntegerv(WGL_SAMPLES_ARB, &nsamples);
return nsamples;
/* -- INTERFACE FUNCTIONS -------------------------------------------------- */
/* Handle the OpenGL inquiries */
case GLUT_WINDOW_RGBA:
#if defined(_WIN32_WCE)
boolValue = (GLboolean)0; /* WinCE doesn't support this feature */
#else
glGetBooleanv ( GL_RGBA_MODE, &boolValue );
returnValue = boolValue ? 1 : 0;
#endif
return returnValue;
case GLUT_WINDOW_DOUBLEBUFFER:
#if defined(_WIN32_WCE)
boolValue = (GLboolean)0; /* WinCE doesn't support this feature */
#else
glGetBooleanv ( GL_DOUBLEBUFFER, &boolValue );
returnValue = boolValue ? 1 : 0;
#endif
return returnValue;
case GLUT_WINDOW_STEREO:
#if defined(_WIN32_WCE)
boolValue = (GLboolean)0; /* WinCE doesn't support this feature */
#else
glGetBooleanv ( GL_STEREO, &boolValue );
returnValue = boolValue ? 1 : 0;
#endif
return returnValue;
case GLUT_WINDOW_RED_SIZE:
glGetIntegerv ( GL_RED_BITS, &returnValue );
return returnValue;
case GLUT_WINDOW_GREEN_SIZE:
glGetIntegerv ( GL_GREEN_BITS, &returnValue );
return returnValue;
case GLUT_WINDOW_BLUE_SIZE:
glGetIntegerv ( GL_BLUE_BITS, &returnValue );
return returnValue;
case GLUT_WINDOW_ALPHA_SIZE:
glGetIntegerv ( GL_ALPHA_BITS, &returnValue );
return returnValue;
case GLUT_WINDOW_ACCUM_RED_SIZE:
#if defined(_WIN32_WCE)
returnValue = 0; /* WinCE doesn't support this feature */
#else
glGetIntegerv ( GL_ACCUM_RED_BITS, &returnValue );
#endif
return returnValue;
case GLUT_WINDOW_ACCUM_GREEN_SIZE:
#if defined(_WIN32_WCE)
returnValue = 0; /* WinCE doesn't support this feature */
#else
glGetIntegerv ( GL_ACCUM_GREEN_BITS, &returnValue );
#endif
return returnValue;
case GLUT_WINDOW_ACCUM_BLUE_SIZE:
#if defined(_WIN32_WCE)
returnValue = 0; /* WinCE doesn't support this feature */
#else
glGetIntegerv ( GL_ACCUM_BLUE_BITS, &returnValue );
#endif
return returnValue;
case GLUT_WINDOW_ACCUM_ALPHA_SIZE:
#if defined(_WIN32_WCE)
returnValue = 0; /* WinCE doesn't support this feature */
#else
glGetIntegerv ( GL_ACCUM_ALPHA_BITS, &returnValue );
#endif
return returnValue;
case GLUT_WINDOW_DEPTH_SIZE:
glGetIntegerv ( GL_DEPTH_BITS, &returnValue );
return returnValue;
case GLUT_WINDOW_BUFFER_SIZE:
returnValue = 1 ; /* ????? */
return returnValue;
case GLUT_WINDOW_STENCIL_SIZE:
returnValue = 0 ; /* ????? */
return returnValue;
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 UNIX/X11; since
* platform independence is a virtue for "freeglut", we
* decided to break with GLUT's behaviour.
*
* Under UNIX/X11, 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 UNIX/X11:
* - 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.
/*
* General settings assignment method
*/
void FGAPIENTRY glutSetOption( GLenum eWhat, int value )
{
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetOption" );
RECT winRect;
freeglut_return_val_if_fail( fgStructure.CurrentWindow != NULL, 0 );
#if defined(_WIN32_WCE)
GetWindowRect( fgStructure.CurrentWindow->Window.Handle, &winRect );
#else
winRect = fghGetClientArea(fgStructure.CurrentWindow, FALSE);
#endif /* defined(_WIN32_WCE) */
/*
* XXX In chronological code add order. (WHY in that order?)
*/
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;
}
}
case GLUT_INIT_WINDOW_X:
fgState.Position.X = (GLint)value;
break;
case GLUT_WINDOW_BORDER_WIDTH :
case GLUT_WINDOW_HEADER_HEIGHT :
#if defined(_WIN32_WCE)
return 0;
#else
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)
{
DWORD windowStyle;
case GLUT_INIT_STATE:
return fgState.Initialised;
if (fgStructure.CurrentWindow && fgStructure.CurrentWindow->Window.Handle)
windowStyle = GetWindowLong(fgStructure.CurrentWindow->Window.Handle, GWL_STYLE);
else
/* If no window, return sizes for a default window with title bar and border */
windowStyle = WS_OVERLAPPEDWINDOW;
case GLUT_ELAPSED_TIME:
return fgElapsedTime();
}
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutGet" );
/* XXX In chronological code add order. (WHY in that order?) */
switch( eWhat )
{
case GLUT_WINDOW_BORDER_WIDTH:
{
int xBorderWidth, yBorderWidth;
fghGetBorderWidth(windowStyle, &xBorderWidth, &yBorderWidth);
return xBorderWidth;
}
case GLUT_WINDOW_HEADER_HEIGHT:
/* 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... */
return (windowStyle & WS_MAXIMIZEBOX)? GetSystemMetrics( SM_CYCAPTION ) : 0;
}
}
#endif /* defined(_WIN32_WCE) */
case GLUT_DISPLAY_MODE_POSSIBLE:
#if defined(_WIN32_WCE)
return 0;
#else
return fgSetupPixelFormat( fgStructure.CurrentWindow, GL_TRUE,
PFD_MAIN_PLANE );
#endif /* defined(_WIN32_WCE) */
case GLUT_WINDOW_FORMAT_ID:
#if !defined(_WIN32_WCE)
if( fgStructure.CurrentWindow != NULL )
return GetPixelFormat( fgStructure.CurrentWindow->Window.Device );
#endif /* defined(_WIN32_WCE) */
return 0;
#endif
/* 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:
@ -555,7 +373,7 @@ int FGAPIENTRY glutGet( GLenum eWhat )
return fgState.SampleNumber;
default:
fgWarning( "glutGet(): missing enum handle %d", eWhat );
return fgPlatformGlutGet ( eWhat );
break;
}
return -1;

231
freeglut/freeglut/src/mswin/freeglut_state_mswin.c
View File

@ -0,0 +1,231 @@
/*
* freeglut_state_mswin.c
*
* The Windows-specific mouse cursor related stuff.
*
* Copyright (c) 2012 Stephen J. Baker. All Rights Reserved.
* Written by John F. Fay, <fayjf@sourceforge.net>
* Creation date: Sun Jan 22, 2012
*
* 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_mswin.h"
/* 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
int fgPlatformGlutGet ( GLenum eWhat )
{
int returnValue ;
GLboolean boolValue ;
int nsamples = 0;
switch( eWhat )
{
case GLUT_WINDOW_NUM_SAMPLES:
glGetIntegerv(WGL_SAMPLES_ARB, &nsamples);
return nsamples;
/* Handle the OpenGL inquiries */
case GLUT_WINDOW_RGBA:
#if defined(_WIN32_WCE)
boolValue = (GLboolean)0; /* WinCE doesn't support this feature */
#else
glGetBooleanv ( GL_RGBA_MODE, &boolValue );
returnValue = boolValue ? 1 : 0;
#endif
return returnValue;
case GLUT_WINDOW_DOUBLEBUFFER:
#if defined(_WIN32_WCE)
boolValue = (GLboolean)0; /* WinCE doesn't support this feature */
#else
glGetBooleanv ( GL_DOUBLEBUFFER, &boolValue );
returnValue = boolValue ? 1 : 0;
#endif
return returnValue;
case GLUT_WINDOW_STEREO:
#if defined(_WIN32_WCE)
boolValue = (GLboolean)0; /* WinCE doesn't support this feature */
#else
glGetBooleanv ( GL_STEREO, &boolValue );
returnValue = boolValue ? 1 : 0;
#endif
return returnValue;
case GLUT_WINDOW_RED_SIZE:
glGetIntegerv ( GL_RED_BITS, &returnValue );
return returnValue;
case GLUT_WINDOW_GREEN_SIZE:
glGetIntegerv ( GL_GREEN_BITS, &returnValue );
return returnValue;
case GLUT_WINDOW_BLUE_SIZE:
glGetIntegerv ( GL_BLUE_BITS, &returnValue );
return returnValue;
case GLUT_WINDOW_ALPHA_SIZE:
glGetIntegerv ( GL_ALPHA_BITS, &returnValue );
return returnValue;
case GLUT_WINDOW_ACCUM_RED_SIZE:
#if defined(_WIN32_WCE)
returnValue = 0; /* WinCE doesn't support this feature */
#else
glGetIntegerv ( GL_ACCUM_RED_BITS, &returnValue );
#endif
return returnValue;
case GLUT_WINDOW_ACCUM_GREEN_SIZE:
#if defined(_WIN32_WCE)
returnValue = 0; /* WinCE doesn't support this feature */
#else
glGetIntegerv ( GL_ACCUM_GREEN_BITS, &returnValue );
#endif
return returnValue;
case GLUT_WINDOW_ACCUM_BLUE_SIZE:
#if defined(_WIN32_WCE)
returnValue = 0; /* WinCE doesn't support this feature */
#else
glGetIntegerv ( GL_ACCUM_BLUE_BITS, &returnValue );
#endif
return returnValue;
case GLUT_WINDOW_ACCUM_ALPHA_SIZE:
#if defined(_WIN32_WCE)
returnValue = 0; /* WinCE doesn't support this feature */
#else
glGetIntegerv ( GL_ACCUM_ALPHA_BITS, &returnValue );
#endif
return returnValue;
case GLUT_WINDOW_DEPTH_SIZE:
glGetIntegerv ( GL_DEPTH_BITS, &returnValue );
return returnValue;
case GLUT_WINDOW_BUFFER_SIZE:
returnValue = 1 ; /* ????? */
return returnValue;
case GLUT_WINDOW_STENCIL_SIZE:
returnValue = 0 ; /* ????? */
return returnValue;
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 UNIX/X11; since
* platform independence is a virtue for "freeglut", we
* decided to break with GLUT's behaviour.
*
* Under UNIX/X11, 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 UNIX/X11:
* - 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;
freeglut_return_val_if_fail( fgStructure.CurrentWindow != NULL, 0 );
#if defined(_WIN32_WCE)
GetWindowRect( fgStructure.CurrentWindow->Window.Handle, &winRect );
#else
winRect = fghGetClientArea(fgStructure.CurrentWindow, FALSE);
#endif /* defined(_WIN32_WCE) */
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 :
case GLUT_WINDOW_HEADER_HEIGHT :
#if defined(_WIN32_WCE)
return 0;
#else
{
DWORD windowStyle;
if (fgStructure.CurrentWindow && fgStructure.CurrentWindow->Window.Handle)
windowStyle = GetWindowLong(fgStructure.CurrentWindow->Window.Handle, GWL_STYLE);
else
/* If no window, return sizes for a default window with title bar and border */
windowStyle = WS_OVERLAPPEDWINDOW;
switch( eWhat )
{
case GLUT_WINDOW_BORDER_WIDTH:
{
int xBorderWidth, yBorderWidth;
fghGetBorderWidth(windowStyle, &xBorderWidth, &yBorderWidth);
return xBorderWidth;
}
case GLUT_WINDOW_HEADER_HEIGHT:
/* 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... */
return (windowStyle & WS_MAXIMIZEBOX)? GetSystemMetrics( SM_CYCAPTION ) : 0;
}
}
#endif /* defined(_WIN32_WCE) */
case GLUT_DISPLAY_MODE_POSSIBLE:
#if defined(_WIN32_WCE)
return 0;
#else
return fgSetupPixelFormat( fgStructure.CurrentWindow, GL_TRUE,
PFD_MAIN_PLANE );
#endif /* defined(_WIN32_WCE) */
case GLUT_WINDOW_FORMAT_ID:
#if !defined(_WIN32_WCE)
if( fgStructure.CurrentWindow != NULL )
return GetPixelFormat( fgStructure.CurrentWindow->Window.Device );
#endif /* defined(_WIN32_WCE) */
return 0;
default:
fgWarning( "glutGet(): missing enum handle %d", eWhat );
break;
}
return -1;
}