1009 lines
29 KiB
C
1009 lines
29 KiB
C
|
//========================================================================
|
||
|
|
// GLFW - An OpenGL framework
|
||
|
|
// Platform: Any
|
||
|
|
// API version: 2.7
|
||
|
|
// WWW: http://www.glfw.org/
|
||
|
|
//------------------------------------------------------------------------
|
||
|
|
// Copyright (c) 2002-2006 Marcus Geelnard
|
||
|
|
// Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org>
|
||
|
|
//
|
||
|
|
// This software is provided 'as-is', without any express or implied
|
||
|
|
// warranty. In no event will the authors be held liable for any damages
|
||
|
|
// arising from the use of this software.
|
||
|
|
//
|
||
|
|
// Permission is granted to anyone to use this software for any purpose,
|
||
|
|
// including commercial applications, and to alter it and redistribute it
|
||
|
|
// freely, subject to the following restrictions:
|
||
|
|
//
|
||
|
|
// 1. The origin of this software must not be misrepresented; you must not
|
||
|
|
// claim that you wrote the original software. If you use this software
|
||
|
|
// in a product, an acknowledgment in the product documentation would
|
||
|
|
// be appreciated but is not required.
|
||
|
|
//
|
||
|
|
// 2. Altered source versions must be plainly marked as such, and must not
|
||
|
|
// be misrepresented as being the original software.
|
||
|
|
//
|
||
|
|
// 3. This notice may not be removed or altered from any source
|
||
|
|
// distribution.
|
||
|
|
//
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
#include "internal.h"
|
||
|
|
|
||
|
|
#include <limits.h>
|
||
|
|
|
||
|
|
#ifdef _MSC_VER
|
||
|
|
#pragma warning(disable:4055) // A data pointer is cast to a function pointer.
|
||
|
|
#endif // _MSC8VER
|
||
|
|
|
||
|
|
#ifndef GL_VERSION_3_2
|
||
|
|
|
||
|
|
#define GL_CONTEXT_CORE_PROFILE_BIT 0x00000001
|
||
|
|
#define GL_CONTEXT_COMPATIBILITY_PROFILE_BIT 0x00000002
|
||
|
|
#define GL_CONTEXT_PROFILE_MASK 0x9126
|
||
|
|
|
||
|
|
#endif /*GL_VERSION_3_2*/
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//************************************************************************
|
||
|
|
//**** GLFW internal functions ****
|
||
|
|
//************************************************************************
|
||
|
|
|
||
|
|
static int Max(int a, int b)
|
||
|
|
{
|
||
|
|
return (a > b) ? a : b;
|
||
|
|
}
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Clear all open window hints
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
void _glfwClearWindowHints( void )
|
||
|
|
{
|
||
|
|
memset( &_glfwLibrary.hints, 0, sizeof( _glfwLibrary.hints ) );
|
||
|
|
_glfwLibrary.hints.glMajor = 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Handle the input tracking part of window deactivation
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
void _glfwInputDeactivation( void )
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
// Release all keyboard keys
|
||
|
|
for( i = 0; i <= GLFW_KEY_LAST; i ++ )
|
||
|
|
{
|
||
|
|
if( _glfwInput.Key[ i ] == GLFW_PRESS )
|
||
|
|
{
|
||
|
|
_glfwInputKey( i, GLFW_RELEASE );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Release all mouse buttons
|
||
|
|
for( i = 0; i <= GLFW_MOUSE_BUTTON_LAST; i ++ )
|
||
|
|
{
|
||
|
|
if( _glfwInput.MouseButton[ i ] == GLFW_PRESS )
|
||
|
|
{
|
||
|
|
_glfwInputMouseClick( i, GLFW_RELEASE );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Clear all input state
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
void _glfwClearInput( void )
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
// Release all keyboard keys
|
||
|
|
for( i = 0; i <= GLFW_KEY_LAST; i ++ )
|
||
|
|
{
|
||
|
|
_glfwInput.Key[ i ] = GLFW_RELEASE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Clear last character
|
||
|
|
_glfwInput.LastChar = 0;
|
||
|
|
|
||
|
|
// Release all mouse buttons
|
||
|
|
for( i = 0; i <= GLFW_MOUSE_BUTTON_LAST; i ++ )
|
||
|
|
{
|
||
|
|
_glfwInput.MouseButton[ i ] = GLFW_RELEASE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set mouse position to (0,0)
|
||
|
|
_glfwInput.MousePosX = 0;
|
||
|
|
_glfwInput.MousePosY = 0;
|
||
|
|
|
||
|
|
// Set mouse wheel position to 0
|
||
|
|
_glfwInput.WheelPos = 0;
|
||
|
|
|
||
|
|
// The default is to use non sticky keys and mouse buttons
|
||
|
|
_glfwInput.StickyKeys = GL_FALSE;
|
||
|
|
_glfwInput.StickyMouseButtons = GL_FALSE;
|
||
|
|
|
||
|
|
// The default is to disable key repeat
|
||
|
|
_glfwInput.KeyRepeat = GL_FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Register keyboard activity
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
void _glfwInputKey( int key, int action )
|
||
|
|
{
|
||
|
|
int keyrepeat = 0;
|
||
|
|
|
||
|
|
if( key < 0 || key > GLFW_KEY_LAST )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Are we trying to release an already released key?
|
||
|
|
if( action == GLFW_RELEASE && _glfwInput.Key[ key ] != GLFW_PRESS )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Register key action
|
||
|
|
if( action == GLFW_RELEASE && _glfwInput.StickyKeys )
|
||
|
|
{
|
||
|
|
_glfwInput.Key[ key ] = GLFW_STICK;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
keyrepeat = (_glfwInput.Key[ key ] == GLFW_PRESS) &&
|
||
|
|
(action == GLFW_PRESS);
|
||
|
|
_glfwInput.Key[ key ] = (char) action;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Call user callback function
|
||
|
|
if( _glfwWin.keyCallback && (_glfwInput.KeyRepeat || !keyrepeat) )
|
||
|
|
{
|
||
|
|
_glfwWin.keyCallback( key, action );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Register (keyboard) character activity
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
void _glfwInputChar( int character, int action )
|
||
|
|
{
|
||
|
|
int keyrepeat = 0;
|
||
|
|
|
||
|
|
// Valid Unicode (ISO 10646) character?
|
||
|
|
if( !( (character >= 32 && character <= 126) || character >= 160 ) )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Is this a key repeat?
|
||
|
|
if( action == GLFW_PRESS && _glfwInput.LastChar == character )
|
||
|
|
{
|
||
|
|
keyrepeat = 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Store this character as last character (or clear it, if released)
|
||
|
|
if( action == GLFW_PRESS )
|
||
|
|
{
|
||
|
|
_glfwInput.LastChar = character;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
_glfwInput.LastChar = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
if( action != GLFW_PRESS )
|
||
|
|
{
|
||
|
|
// This intentionally breaks release notifications for Unicode
|
||
|
|
// characters, partly to see if anyone cares but mostly because it's
|
||
|
|
// a nonsensical concept to begin with
|
||
|
|
//
|
||
|
|
// It will remain broken either until its removal in the 3.0 API or
|
||
|
|
// until someone explains, in a way that makes sense to people outside
|
||
|
|
// the US and Scandinavia, what "Unicode character up" actually means
|
||
|
|
//
|
||
|
|
// If what you want is "physical key up" then you should be using the
|
||
|
|
// key functions and/or the key callback, NOT the Unicode input
|
||
|
|
//
|
||
|
|
// However, if your particular application uses this misfeature for...
|
||
|
|
// something, you can re-enable it by removing this if-statement
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if( _glfwWin.charCallback && (_glfwInput.KeyRepeat || !keyrepeat) )
|
||
|
|
{
|
||
|
|
_glfwWin.charCallback( character, action );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Register mouse button clicks
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
void _glfwInputMouseClick( int button, int action )
|
||
|
|
{
|
||
|
|
if( button >= 0 && button <= GLFW_MOUSE_BUTTON_LAST )
|
||
|
|
{
|
||
|
|
// Register mouse button action
|
||
|
|
if( action == GLFW_RELEASE && _glfwInput.StickyMouseButtons )
|
||
|
|
{
|
||
|
|
_glfwInput.MouseButton[ button ] = GLFW_STICK;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
_glfwInput.MouseButton[ button ] = (char) action;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Call user callback function
|
||
|
|
if( _glfwWin.mouseButtonCallback )
|
||
|
|
{
|
||
|
|
_glfwWin.mouseButtonCallback( button, action );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Return the available framebuffer config closest to the desired values
|
||
|
|
// This is based on the manual GLX Visual selection from 2.6
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
const _GLFWfbconfig *_glfwChooseFBConfig( const _GLFWfbconfig *desired,
|
||
|
|
const _GLFWfbconfig *alternatives,
|
||
|
|
unsigned int count )
|
||
|
|
{
|
||
|
|
unsigned int i;
|
||
|
|
unsigned int missing, leastMissing = UINT_MAX;
|
||
|
|
unsigned int colorDiff, leastColorDiff = UINT_MAX;
|
||
|
|
unsigned int extraDiff, leastExtraDiff = UINT_MAX;
|
||
|
|
const _GLFWfbconfig *current;
|
||
|
|
const _GLFWfbconfig *closest = NULL;
|
||
|
|
|
||
|
|
for( i = 0; i < count; i++ )
|
||
|
|
{
|
||
|
|
current = alternatives + i;
|
||
|
|
|
||
|
|
if( desired->stereo > 0 && current->stereo == 0 )
|
||
|
|
{
|
||
|
|
// Stereo is a hard constraint
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Count number of missing buffers
|
||
|
|
{
|
||
|
|
missing = 0;
|
||
|
|
|
||
|
|
if( desired->alphaBits > 0 && current->alphaBits == 0 )
|
||
|
|
{
|
||
|
|
missing++;
|
||
|
|
}
|
||
|
|
|
||
|
|
if( desired->depthBits > 0 && current->depthBits == 0 )
|
||
|
|
{
|
||
|
|
missing++;
|
||
|
|
}
|
||
|
|
|
||
|
|
if( desired->stencilBits > 0 && current->stencilBits == 0 )
|
||
|
|
{
|
||
|
|
missing++;
|
||
|
|
}
|
||
|
|
|
||
|
|
if( desired->auxBuffers > 0 && current->auxBuffers < desired->auxBuffers )
|
||
|
|
{
|
||
|
|
missing += desired->auxBuffers - current->auxBuffers;
|
||
|
|
}
|
||
|
|
|
||
|
|
if( desired->samples > 0 && current->samples == 0 )
|
||
|
|
{
|
||
|
|
// Technically, several multisampling buffers could be
|
||
|
|
// involved, but that's a lower level implementation detail and
|
||
|
|
// not important to us here, so we count them as one
|
||
|
|
missing++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// These polynomials make many small channel size differences matter
|
||
|
|
// less than one large channel size difference
|
||
|
|
|
||
|
|
// Calculate color channel size difference value
|
||
|
|
{
|
||
|
|
colorDiff = 0;
|
||
|
|
|
||
|
|
if ( desired->redBits > 0 )
|
||
|
|
{
|
||
|
|
colorDiff += ( desired->redBits - current->redBits ) *
|
||
|
|
( desired->redBits - current->redBits );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( desired->greenBits > 0 )
|
||
|
|
{
|
||
|
|
colorDiff += ( desired->greenBits - current->greenBits ) *
|
||
|
|
( desired->greenBits - current->greenBits );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( desired->blueBits > 0 )
|
||
|
|
{
|
||
|
|
colorDiff += ( desired->blueBits - current->blueBits ) *
|
||
|
|
( desired->blueBits - current->blueBits );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Calculate non-color channel size difference value
|
||
|
|
{
|
||
|
|
extraDiff = 0;
|
||
|
|
|
||
|
|
if( desired->alphaBits > 0 )
|
||
|
|
{
|
||
|
|
extraDiff += ( desired->alphaBits - current->alphaBits ) *
|
||
|
|
( desired->alphaBits - current->alphaBits );
|
||
|
|
}
|
||
|
|
|
||
|
|
if( desired->depthBits > 0 )
|
||
|
|
{
|
||
|
|
extraDiff += ( desired->depthBits - current->depthBits ) *
|
||
|
|
( desired->depthBits - current->depthBits );
|
||
|
|
}
|
||
|
|
|
||
|
|
if( desired->stencilBits > 0 )
|
||
|
|
{
|
||
|
|
extraDiff += ( desired->stencilBits - current->stencilBits ) *
|
||
|
|
( desired->stencilBits - current->stencilBits );
|
||
|
|
}
|
||
|
|
|
||
|
|
if( desired->accumRedBits > 0 )
|
||
|
|
{
|
||
|
|
extraDiff += ( desired->accumRedBits - current->accumRedBits ) *
|
||
|
|
( desired->accumRedBits - current->accumRedBits );
|
||
|
|
}
|
||
|
|
|
||
|
|
if( desired->accumGreenBits > 0 )
|
||
|
|
{
|
||
|
|
extraDiff += ( desired->accumGreenBits - current->accumGreenBits ) *
|
||
|
|
( desired->accumGreenBits - current->accumGreenBits );
|
||
|
|
}
|
||
|
|
|
||
|
|
if( desired->accumBlueBits > 0 )
|
||
|
|
{
|
||
|
|
extraDiff += ( desired->accumBlueBits - current->accumBlueBits ) *
|
||
|
|
( desired->accumBlueBits - current->accumBlueBits );
|
||
|
|
}
|
||
|
|
|
||
|
|
if( desired->accumAlphaBits > 0 )
|
||
|
|
{
|
||
|
|
extraDiff += ( desired->accumAlphaBits - current->accumAlphaBits ) *
|
||
|
|
( desired->accumAlphaBits - current->accumAlphaBits );
|
||
|
|
}
|
||
|
|
|
||
|
|
if( desired->samples > 0 )
|
||
|
|
{
|
||
|
|
extraDiff += ( desired->samples - current->samples ) *
|
||
|
|
( desired->samples - current->samples );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Figure out if the current one is better than the best one found so far
|
||
|
|
|
||
|
|
if( missing < leastMissing )
|
||
|
|
{
|
||
|
|
closest = current;
|
||
|
|
}
|
||
|
|
else if( missing == leastMissing )
|
||
|
|
{
|
||
|
|
if( ( colorDiff < leastColorDiff ) ||
|
||
|
|
( colorDiff == leastColorDiff && extraDiff < leastExtraDiff ) )
|
||
|
|
{
|
||
|
|
closest = current;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if( current == closest )
|
||
|
|
{
|
||
|
|
leastMissing = missing;
|
||
|
|
leastColorDiff = colorDiff;
|
||
|
|
leastExtraDiff = extraDiff;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return closest;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//************************************************************************
|
||
|
|
//**** GLFW user functions ****
|
||
|
|
//************************************************************************
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Create the GLFW window and its associated context
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
GLFWAPI int GLFWAPIENTRY glfwOpenWindow( int width, int height,
|
||
|
|
int redbits, int greenbits, int bluebits, int alphabits,
|
||
|
|
int depthbits, int stencilbits, int mode )
|
||
|
|
{
|
||
|
|
_GLFWfbconfig fbconfig;
|
||
|
|
_GLFWwndconfig wndconfig;
|
||
|
|
|
||
|
|
if( !_glfwInitialized || _glfwWin.opened )
|
||
|
|
{
|
||
|
|
return GL_FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set up desired framebuffer config
|
||
|
|
fbconfig.redBits = Max( redbits, 0 );
|
||
|
|
fbconfig.greenBits = Max( greenbits, 0 );
|
||
|
|
fbconfig.blueBits = Max( bluebits, 0 );
|
||
|
|
fbconfig.alphaBits = Max( alphabits, 0 );
|
||
|
|
fbconfig.depthBits = Max( depthbits, 0 );
|
||
|
|
fbconfig.stencilBits = Max( stencilbits, 0 );
|
||
|
|
fbconfig.accumRedBits = Max( _glfwLibrary.hints.accumRedBits, 0 );
|
||
|
|
fbconfig.accumGreenBits = Max( _glfwLibrary.hints.accumGreenBits, 0 );
|
||
|
|
fbconfig.accumBlueBits = Max( _glfwLibrary.hints.accumBlueBits, 0 );
|
||
|
|
fbconfig.accumAlphaBits = Max( _glfwLibrary.hints.accumAlphaBits, 0 );
|
||
|
|
fbconfig.auxBuffers = Max( _glfwLibrary.hints.auxBuffers, 0 );
|
||
|
|
fbconfig.stereo = _glfwLibrary.hints.stereo ? GL_TRUE : GL_FALSE;
|
||
|
|
fbconfig.samples = Max( _glfwLibrary.hints.samples, 0 );
|
||
|
|
|
||
|
|
// Set up desired window config
|
||
|
|
wndconfig.mode = mode;
|
||
|
|
wndconfig.refreshRate = Max( _glfwLibrary.hints.refreshRate, 0 );
|
||
|
|
wndconfig.windowNoResize = _glfwLibrary.hints.windowNoResize ? GL_TRUE : GL_FALSE;
|
||
|
|
wndconfig.glMajor = Max( _glfwLibrary.hints.glMajor, 1 );
|
||
|
|
wndconfig.glMinor = Max( _glfwLibrary.hints.glMinor, 0 );
|
||
|
|
wndconfig.glForward = _glfwLibrary.hints.glForward ? GL_TRUE : GL_FALSE;
|
||
|
|
wndconfig.glDebug = _glfwLibrary.hints.glDebug ? GL_TRUE : GL_FALSE;
|
||
|
|
wndconfig.glProfile = _glfwLibrary.hints.glProfile;
|
||
|
|
|
||
|
|
if( wndconfig.glMajor == 1 && wndconfig.glMinor > 5 )
|
||
|
|
{
|
||
|
|
// OpenGL 1.x series ended with version 1.5
|
||
|
|
return GL_FALSE;
|
||
|
|
}
|
||
|
|
else if( wndconfig.glMajor == 2 && wndconfig.glMinor > 1 )
|
||
|
|
{
|
||
|
|
// OpenGL 2.x series ended with version 2.1
|
||
|
|
return GL_FALSE;
|
||
|
|
}
|
||
|
|
else if( wndconfig.glMajor == 3 && wndconfig.glMinor > 3 )
|
||
|
|
{
|
||
|
|
// OpenGL 3.x series ended with version 3.3
|
||
|
|
return GL_FALSE;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// For now, let everything else through
|
||
|
|
}
|
||
|
|
|
||
|
|
if( wndconfig.glProfile &&
|
||
|
|
( wndconfig.glMajor < 3 || ( wndconfig.glMajor == 3 && wndconfig.glMinor < 2 ) ) )
|
||
|
|
{
|
||
|
|
// Context profiles are only defined for OpenGL version 3.2 and above
|
||
|
|
return GL_FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
if( wndconfig.glForward && wndconfig.glMajor < 3 )
|
||
|
|
{
|
||
|
|
// Forward-compatible contexts are only defined for OpenGL version 3.0 and above
|
||
|
|
return GL_FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Clear for next open call
|
||
|
|
_glfwClearWindowHints();
|
||
|
|
|
||
|
|
// Check input arguments
|
||
|
|
if( mode != GLFW_WINDOW && mode != GLFW_FULLSCREEN )
|
||
|
|
{
|
||
|
|
return GL_FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Clear GLFW window state
|
||
|
|
_glfwWin.active = GL_TRUE;
|
||
|
|
_glfwWin.iconified = GL_FALSE;
|
||
|
|
_glfwWin.mouseLock = GL_FALSE;
|
||
|
|
_glfwWin.autoPollEvents = GL_TRUE;
|
||
|
|
_glfwClearInput();
|
||
|
|
|
||
|
|
// Unregister all callback functions
|
||
|
|
_glfwWin.windowSizeCallback = NULL;
|
||
|
|
_glfwWin.windowCloseCallback = NULL;
|
||
|
|
_glfwWin.windowRefreshCallback = NULL;
|
||
|
|
_glfwWin.keyCallback = NULL;
|
||
|
|
_glfwWin.charCallback = NULL;
|
||
|
|
_glfwWin.mousePosCallback = NULL;
|
||
|
|
_glfwWin.mouseButtonCallback = NULL;
|
||
|
|
_glfwWin.mouseWheelCallback = NULL;
|
||
|
|
|
||
|
|
// Check width & height
|
||
|
|
if( width > 0 && height <= 0 )
|
||
|
|
{
|
||
|
|
// Set the window aspect ratio to 4:3
|
||
|
|
height = (width * 3) / 4;
|
||
|
|
}
|
||
|
|
else if( width <= 0 && height > 0 )
|
||
|
|
{
|
||
|
|
// Set the window aspect ratio to 4:3
|
||
|
|
width = (height * 4) / 3;
|
||
|
|
}
|
||
|
|
else if( width <= 0 && height <= 0 )
|
||
|
|
{
|
||
|
|
// Default window size
|
||
|
|
width = 640;
|
||
|
|
height = 480;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Remember window settings
|
||
|
|
_glfwWin.width = width;
|
||
|
|
_glfwWin.height = height;
|
||
|
|
_glfwWin.fullscreen = (mode == GLFW_FULLSCREEN ? GL_TRUE : GL_FALSE);
|
||
|
|
|
||
|
|
// Platform specific window opening routine
|
||
|
|
if( !_glfwPlatformOpenWindow( width, height, &wndconfig, &fbconfig ) )
|
||
|
|
{
|
||
|
|
glfwCloseWindow();
|
||
|
|
return GL_FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Flag that window is now opened
|
||
|
|
_glfwWin.opened = GL_TRUE;
|
||
|
|
|
||
|
|
// Read back window and context parameters
|
||
|
|
_glfwPlatformRefreshWindowParams();
|
||
|
|
_glfwRefreshContextParams();
|
||
|
|
|
||
|
|
if( _glfwWin.glMajor < wndconfig.glMajor ||
|
||
|
|
( _glfwWin.glMajor == wndconfig.glMajor &&
|
||
|
|
_glfwWin.glMinor < wndconfig.glMinor ) )
|
||
|
|
{
|
||
|
|
glfwCloseWindow();
|
||
|
|
return GL_FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Do we have non-power-of-two textures (added to core in version 2.0)?
|
||
|
|
_glfwWin.has_GL_ARB_texture_non_power_of_two =
|
||
|
|
( _glfwWin.glMajor >= 2 ) ||
|
||
|
|
glfwExtensionSupported( "GL_ARB_texture_non_power_of_two" );
|
||
|
|
|
||
|
|
// Do we have automatic mipmap generation (added to core in version 1.4)?
|
||
|
|
_glfwWin.has_GL_SGIS_generate_mipmap =
|
||
|
|
( _glfwWin.glMajor >= 2 ) || ( _glfwWin.glMinor >= 4 ) ||
|
||
|
|
glfwExtensionSupported( "GL_SGIS_generate_mipmap" );
|
||
|
|
|
||
|
|
if( _glfwWin.glMajor > 2 )
|
||
|
|
{
|
||
|
|
_glfwWin.GetStringi = (PFNGLGETSTRINGIPROC) glfwGetProcAddress( "glGetStringi" );
|
||
|
|
if( !_glfwWin.GetStringi )
|
||
|
|
{
|
||
|
|
// This is a very common problem among people who compile GLFW
|
||
|
|
// on X11/GLX using custom build systems, as the glfwGetProcAddress
|
||
|
|
// code path selection needs explicit configuration
|
||
|
|
//
|
||
|
|
// See readme.html section 2.2 for details
|
||
|
|
|
||
|
|
glfwCloseWindow();
|
||
|
|
return GL_FALSE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// If full-screen mode was requested, disable mouse cursor
|
||
|
|
if( mode == GLFW_FULLSCREEN )
|
||
|
|
{
|
||
|
|
glfwDisable( GLFW_MOUSE_CURSOR );
|
||
|
|
}
|
||
|
|
|
||
|
|
// Start by clearing the front buffer to black (avoid ugly desktop
|
||
|
|
// remains in our OpenGL window)
|
||
|
|
glClear( GL_COLOR_BUFFER_BIT );
|
||
|
|
_glfwPlatformSwapBuffers();
|
||
|
|
|
||
|
|
return GL_TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Set hints for opening the window
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
GLFWAPI void GLFWAPIENTRY glfwOpenWindowHint( int target, int hint )
|
||
|
|
{
|
||
|
|
if( !_glfwInitialized )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
switch( target )
|
||
|
|
{
|
||
|
|
case GLFW_REFRESH_RATE:
|
||
|
|
_glfwLibrary.hints.refreshRate = hint;
|
||
|
|
break;
|
||
|
|
case GLFW_ACCUM_RED_BITS:
|
||
|
|
_glfwLibrary.hints.accumRedBits = hint;
|
||
|
|
break;
|
||
|
|
case GLFW_ACCUM_GREEN_BITS:
|
||
|
|
_glfwLibrary.hints.accumGreenBits = hint;
|
||
|
|
break;
|
||
|
|
case GLFW_ACCUM_BLUE_BITS:
|
||
|
|
_glfwLibrary.hints.accumBlueBits = hint;
|
||
|
|
break;
|
||
|
|
case GLFW_ACCUM_ALPHA_BITS:
|
||
|
|
_glfwLibrary.hints.accumAlphaBits = hint;
|
||
|
|
break;
|
||
|
|
case GLFW_AUX_BUFFERS:
|
||
|
|
_glfwLibrary.hints.auxBuffers = hint;
|
||
|
|
break;
|
||
|
|
case GLFW_STEREO:
|
||
|
|
_glfwLibrary.hints.stereo = hint;
|
||
|
|
break;
|
||
|
|
case GLFW_WINDOW_NO_RESIZE:
|
||
|
|
_glfwLibrary.hints.windowNoResize = hint;
|
||
|
|
break;
|
||
|
|
case GLFW_FSAA_SAMPLES:
|
||
|
|
_glfwLibrary.hints.samples = hint;
|
||
|
|
break;
|
||
|
|
case GLFW_OPENGL_VERSION_MAJOR:
|
||
|
|
_glfwLibrary.hints.glMajor = hint;
|
||
|
|
break;
|
||
|
|
case GLFW_OPENGL_VERSION_MINOR:
|
||
|
|
_glfwLibrary.hints.glMinor = hint;
|
||
|
|
break;
|
||
|
|
case GLFW_OPENGL_FORWARD_COMPAT:
|
||
|
|
_glfwLibrary.hints.glForward = hint;
|
||
|
|
break;
|
||
|
|
case GLFW_OPENGL_DEBUG_CONTEXT:
|
||
|
|
_glfwLibrary.hints.glDebug = hint;
|
||
|
|
break;
|
||
|
|
case GLFW_OPENGL_PROFILE:
|
||
|
|
_glfwLibrary.hints.glProfile = hint;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Properly kill the window / video display
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
GLFWAPI void GLFWAPIENTRY glfwCloseWindow( void )
|
||
|
|
{
|
||
|
|
if( !_glfwInitialized )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Show mouse pointer again (if hidden)
|
||
|
|
glfwEnable( GLFW_MOUSE_CURSOR );
|
||
|
|
|
||
|
|
_glfwPlatformCloseWindow();
|
||
|
|
|
||
|
|
memset( &_glfwWin, 0, sizeof(_glfwWin) );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Set the window title
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
GLFWAPI void GLFWAPIENTRY glfwSetWindowTitle( const char *title )
|
||
|
|
{
|
||
|
|
if( !_glfwInitialized || !_glfwWin.opened )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set window title
|
||
|
|
_glfwPlatformSetWindowTitle( title );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Get the window size
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
GLFWAPI void GLFWAPIENTRY glfwGetWindowSize( int *width, int *height )
|
||
|
|
{
|
||
|
|
if( !_glfwInitialized || !_glfwWin.opened )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if( width != NULL )
|
||
|
|
{
|
||
|
|
*width = _glfwWin.width;
|
||
|
|
}
|
||
|
|
if( height != NULL )
|
||
|
|
{
|
||
|
|
*height = _glfwWin.height;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Set the window size
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
GLFWAPI void GLFWAPIENTRY glfwSetWindowSize( int width, int height )
|
||
|
|
{
|
||
|
|
if( !_glfwInitialized || !_glfwWin.opened || _glfwWin.iconified )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Don't do anything if the window size did not change
|
||
|
|
if( width == _glfwWin.width && height == _glfwWin.height )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Change window size
|
||
|
|
_glfwPlatformSetWindowSize( width, height );
|
||
|
|
|
||
|
|
// Refresh window parameters (may have changed due to changed video
|
||
|
|
// modes)
|
||
|
|
_glfwPlatformRefreshWindowParams();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Set the window position
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
GLFWAPI void GLFWAPIENTRY glfwSetWindowPos( int x, int y )
|
||
|
|
{
|
||
|
|
if( !_glfwInitialized || !_glfwWin.opened || _glfwWin.fullscreen ||
|
||
|
|
_glfwWin.iconified )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set window position
|
||
|
|
_glfwPlatformSetWindowPos( x, y );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Window iconification
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
GLFWAPI void GLFWAPIENTRY glfwIconifyWindow( void )
|
||
|
|
{
|
||
|
|
if( !_glfwInitialized || !_glfwWin.opened || _glfwWin.iconified )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Iconify window
|
||
|
|
_glfwPlatformIconifyWindow();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Window un-iconification
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
GLFWAPI void GLFWAPIENTRY glfwRestoreWindow( void )
|
||
|
|
{
|
||
|
|
if( !_glfwInitialized || !_glfwWin.opened || !_glfwWin.iconified )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Restore iconified window
|
||
|
|
_glfwPlatformRestoreWindow();
|
||
|
|
|
||
|
|
// Refresh window parameters
|
||
|
|
_glfwPlatformRefreshWindowParams();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Swap buffers (double-buffering) and poll any new events
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
GLFWAPI void GLFWAPIENTRY glfwSwapBuffers( void )
|
||
|
|
{
|
||
|
|
if( !_glfwInitialized || !_glfwWin.opened )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
_glfwPlatformSwapBuffers();
|
||
|
|
|
||
|
|
// Check for window messages
|
||
|
|
if( _glfwWin.autoPollEvents )
|
||
|
|
{
|
||
|
|
glfwPollEvents();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Set double buffering swap interval (0 = vsync off)
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
GLFWAPI void GLFWAPIENTRY glfwSwapInterval( int interval )
|
||
|
|
{
|
||
|
|
if( !_glfwInitialized || !_glfwWin.opened )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set double buffering swap interval
|
||
|
|
_glfwPlatformSwapInterval( interval );
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Get window parameter
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
GLFWAPI int GLFWAPIENTRY glfwGetWindowParam( int param )
|
||
|
|
{
|
||
|
|
if( !_glfwInitialized )
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Is the window opened?
|
||
|
|
if( !_glfwWin.opened )
|
||
|
|
{
|
||
|
|
if( param == GLFW_OPENED )
|
||
|
|
{
|
||
|
|
return GL_FALSE;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Window parameters
|
||
|
|
switch( param )
|
||
|
|
{
|
||
|
|
case GLFW_OPENED:
|
||
|
|
return GL_TRUE;
|
||
|
|
case GLFW_ACTIVE:
|
||
|
|
return _glfwWin.active;
|
||
|
|
case GLFW_ICONIFIED:
|
||
|
|
return _glfwWin.iconified;
|
||
|
|
case GLFW_ACCELERATED:
|
||
|
|
return _glfwWin.accelerated;
|
||
|
|
case GLFW_RED_BITS:
|
||
|
|
return _glfwWin.redBits;
|
||
|
|
case GLFW_GREEN_BITS:
|
||
|
|
return _glfwWin.greenBits;
|
||
|
|
case GLFW_BLUE_BITS:
|
||
|
|
return _glfwWin.blueBits;
|
||
|
|
case GLFW_ALPHA_BITS:
|
||
|
|
return _glfwWin.alphaBits;
|
||
|
|
case GLFW_DEPTH_BITS:
|
||
|
|
return _glfwWin.depthBits;
|
||
|
|
case GLFW_STENCIL_BITS:
|
||
|
|
return _glfwWin.stencilBits;
|
||
|
|
case GLFW_ACCUM_RED_BITS:
|
||
|
|
return _glfwWin.accumRedBits;
|
||
|
|
case GLFW_ACCUM_GREEN_BITS:
|
||
|
|
return _glfwWin.accumGreenBits;
|
||
|
|
case GLFW_ACCUM_BLUE_BITS:
|
||
|
|
return _glfwWin.accumBlueBits;
|
||
|
|
case GLFW_ACCUM_ALPHA_BITS:
|
||
|
|
return _glfwWin.accumAlphaBits;
|
||
|
|
case GLFW_AUX_BUFFERS:
|
||
|
|
return _glfwWin.auxBuffers;
|
||
|
|
case GLFW_STEREO:
|
||
|
|
return _glfwWin.stereo;
|
||
|
|
case GLFW_REFRESH_RATE:
|
||
|
|
return _glfwWin.refreshRate;
|
||
|
|
case GLFW_WINDOW_NO_RESIZE:
|
||
|
|
return _glfwWin.windowNoResize;
|
||
|
|
case GLFW_FSAA_SAMPLES:
|
||
|
|
return _glfwWin.samples;
|
||
|
|
case GLFW_OPENGL_VERSION_MAJOR:
|
||
|
|
return _glfwWin.glMajor;
|
||
|
|
case GLFW_OPENGL_VERSION_MINOR:
|
||
|
|
return _glfwWin.glMinor;
|
||
|
|
case GLFW_OPENGL_FORWARD_COMPAT:
|
||
|
|
return _glfwWin.glForward;
|
||
|
|
case GLFW_OPENGL_DEBUG_CONTEXT:
|
||
|
|
return _glfwWin.glDebug;
|
||
|
|
case GLFW_OPENGL_PROFILE:
|
||
|
|
return _glfwWin.glProfile;
|
||
|
|
default:
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Set callback function for window size changes
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
GLFWAPI void GLFWAPIENTRY glfwSetWindowSizeCallback( GLFWwindowsizefun cbfun )
|
||
|
|
{
|
||
|
|
if( !_glfwInitialized || !_glfwWin.opened )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set callback function
|
||
|
|
_glfwWin.windowSizeCallback = cbfun;
|
||
|
|
|
||
|
|
// Call the callback function to let the application know the current
|
||
|
|
// window size
|
||
|
|
if( cbfun )
|
||
|
|
{
|
||
|
|
cbfun( _glfwWin.width, _glfwWin.height );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Set callback function for window close events
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
GLFWAPI void GLFWAPIENTRY glfwSetWindowCloseCallback( GLFWwindowclosefun cbfun )
|
||
|
|
{
|
||
|
|
if( !_glfwInitialized || !_glfwWin.opened )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set callback function
|
||
|
|
_glfwWin.windowCloseCallback = cbfun;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Set callback function for window refresh events
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
GLFWAPI void GLFWAPIENTRY glfwSetWindowRefreshCallback( GLFWwindowrefreshfun cbfun )
|
||
|
|
{
|
||
|
|
if( !_glfwInitialized || !_glfwWin.opened )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set callback function
|
||
|
|
_glfwWin.windowRefreshCallback = cbfun;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Poll for new window and input events
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
GLFWAPI void GLFWAPIENTRY glfwPollEvents( void )
|
||
|
|
{
|
||
|
|
if( !_glfwInitialized || !_glfwWin.opened )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Poll for new events
|
||
|
|
_glfwPlatformPollEvents();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// Wait for new window and input events
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
GLFWAPI void GLFWAPIENTRY glfwWaitEvents( void )
|
||
|
|
{
|
||
|
|
if( !_glfwInitialized || !_glfwWin.opened )
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Poll for new events
|
||
|
|
_glfwPlatformWaitEvents();
|
||
|
|
}
|
||
|
|
|