1 files changed, 317 insertions, 0 deletions
diff --git a/src/engine/external/glfw/lib/win32/win32_fullscreen.c b/src/engine/external/glfw/lib/win32/win32_fullscreen.c
new file mode 100644
index 00000000..fcecee67
--- /dev/null
+++ b/src/engine/external/glfw/lib/win32/win32_fullscreen.c
@@ -0,0 +1,317 @@
+//========================================================================
+// GLFW - An OpenGL framework
+// File:        win32_fullscreen.c
+// Platform:    Windows
+// API version: 2.6
+// WWW:         http://glfw.sourceforge.net
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Camilla Berglund
+//
+// 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"
+
+
+//************************************************************************
+//****                  GLFW internal functions                       ****
+//************************************************************************
+
+//========================================================================
+// _glfwBPP2RGB() - Convert BPP to RGB bits (based on "best guess")
+//========================================================================
+
+static void _glfwBPP2RGB( int bpp, int *r, int *g, int *b )
+{
+    int delta;
+
+    // Special case: BPP = 32
+    if( bpp == 32 ) bpp = 24;
+
+    // Convert "bits per pixel" to red, green & blue sizes
+    *r = *g = *b = bpp / 3;
+    delta = bpp - (*r * 3);
+    if( delta >= 1 )
+    {
+        *g = *g + 1;
+    }
+    if( delta == 2 )
+    {
+        *r = *r + 1;
+    }
+}
+
+
+//========================================================================
+// _glfwGetClosestVideoModeBPP()
+//========================================================================
+
+int _glfwGetClosestVideoModeBPP( int *w, int *h, int *bpp, int *refresh )
+{
+    int     mode, bestmode, match, bestmatch, rr, bestrr, success;
+    DEVMODE dm;
+
+    // Find best match
+    bestmatch = 0x7fffffff;
+    bestrr    = 0x7fffffff;
+    mode = bestmode = 0;
+    do
+    {
+        dm.dmSize = sizeof( DEVMODE );
+        success = EnumDisplaySettings( NULL, mode, &dm );
+        if( success )
+        {
+            match = dm.dmBitsPerPel - *bpp;
+            if( match < 0 ) match = -match;
+            match = ( match << 25 ) |
+                    ( (dm.dmPelsWidth - *w) *
+                      (dm.dmPelsWidth - *w) +
+                      (dm.dmPelsHeight - *h) *
+                      (dm.dmPelsHeight - *h) );
+            if( match < bestmatch )
+            {
+                bestmatch = match;
+                bestmode  = mode;
+                bestrr = (dm.dmDisplayFrequency - *refresh) *
+                         (dm.dmDisplayFrequency - *refresh);
+            }
+            else if( match == bestmatch && *refresh > 0 )
+            {
+                rr = (dm.dmDisplayFrequency - *refresh) *
+                     (dm.dmDisplayFrequency - *refresh);
+                if( rr < bestrr )
+                {
+                    bestmatch = match;
+                    bestmode  = mode;
+                    bestrr    = rr;
+                }
+            }
+        }
+        mode ++;
+    }
+    while( success );
+
+    // Get the parameters for the best matching display mode
+    dm.dmSize = sizeof( DEVMODE );
+    (void) EnumDisplaySettings( NULL, bestmode, &dm );
+
+    // Fill out actual width and height
+    *w = dm.dmPelsWidth;
+    *h = dm.dmPelsHeight;
+
+    // Return bits per pixel
+    *bpp = dm.dmBitsPerPel;
+
+    // Return vertical refresh rate
+    *refresh = dm.dmDisplayFrequency;
+
+    return bestmode;
+}
+
+
+//========================================================================
+// _glfwGetClosestVideoMode()
+//========================================================================
+
+int _glfwGetClosestVideoMode( int *w, int *h, int *r, int *g, int *b,
+    int *refresh )
+{
+    int     bpp, bestmode;
+
+    // Colorbits = sum of red/green/blue bits
+    bpp = *r + *g + *b;
+
+    // If colorbits < 15 (e.g. 0) or >= 24, default to 32 bpp
+    if( bpp < 15 || bpp >= 24 )
+    {
+        bpp = 32;
+    }
+
+    // Find best match
+    bestmode = _glfwGetClosestVideoModeBPP( w, h, &bpp, refresh );
+
+    // Convert "bits per pixel" to red, green & blue sizes
+    _glfwBPP2RGB( bpp, r, g, b );
+
+    return bestmode;
+}
+
+
+//========================================================================
+// Change the current video mode
+//========================================================================
+
+void _glfwSetVideoModeMODE( int mode )
+{
+    DEVMODE dm;
+    int     success;
+
+    // Get the parameters for the best matching display mode
+    dm.dmSize = sizeof( DEVMODE );
+    (void) EnumDisplaySettings( NULL, mode, &dm );
+
+    // Set which fields we want to specify
+    dm.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL;
+
+    // Do we have a prefered refresh rate?
+    if( _glfwWin.DesiredRefreshRate > 0 )
+    {
+        dm.dmFields = dm.dmFields | DM_DISPLAYFREQUENCY;
+	dm.dmDisplayFrequency = _glfwWin.DesiredRefreshRate;
+    }
+
+    // Change display setting
+    dm.dmSize = sizeof( DEVMODE );
+    success = ChangeDisplaySettings( &dm, CDS_FULLSCREEN );
+
+    // If the mode change was not possible, query the current display
+    // settings (we'll use the desktop resolution for fullscreen mode)
+    if( success == DISP_CHANGE_SUCCESSFUL )
+    {
+        _glfwWin.ModeID = mode;
+    }
+    else
+    {
+        _glfwWin.ModeID = ENUM_REGISTRY_SETTINGS;
+        EnumDisplaySettings( NULL, ENUM_REGISTRY_SETTINGS, &dm );
+    }
+
+    // Set the window size to that of the display mode
+    _glfwWin.Width  = dm.dmPelsWidth;
+    _glfwWin.Height = dm.dmPelsHeight;
+}
+
+
+//========================================================================
+// _glfwSetVideoMode() - Change the current video mode
+//========================================================================
+
+void _glfwSetVideoMode( int *w, int *h, int r, int g, int b, int refresh )
+{
+    int     bestmode;
+
+    // Find a best match mode
+    bestmode = _glfwGetClosestVideoMode( w, h, &r, &g, &b, &refresh );
+
+    // Change mode
+    _glfwSetVideoModeMODE( bestmode );
+}
+
+
+//************************************************************************
+//****                    GLFW user functions                         ****
+//************************************************************************
+
+//========================================================================
+// _glfwPlatformGetVideoModes() - Get a list of available video modes
+//========================================================================
+
+int _glfwPlatformGetVideoModes( GLFWvidmode *list, int maxcount )
+{
+    int count, success, mode, i, j;
+    int m1, m2, bpp, r, g, b;
+    DEVMODE dm;
+
+    // Loop through all video modes and extract all the UNIQUE modes
+    count = 0;
+    mode  = 0;
+    do
+    {
+        // Get video mode properties
+        dm.dmSize = sizeof( DEVMODE );
+        success = EnumDisplaySettings( NULL, mode, &dm );
+
+        // Is it a valid mode? (only list depths >= 15 bpp)
+        if( success && dm.dmBitsPerPel >= 15 )
+        {
+            // Convert to RGB, and back to bpp ("mask out" alpha bits etc)
+            _glfwBPP2RGB( dm.dmBitsPerPel, &r, &g, &b );
+            bpp = r + g + b;
+
+            // Mode "code" for this mode
+            m1 = (bpp << 25) | (dm.dmPelsWidth * dm.dmPelsHeight);
+
+            // Insert mode in list (sorted), and avoid duplicates
+            for( i = 0; i < count; i ++ )
+            {
+                // Mode "code" for already listed mode
+                bpp = list[i].RedBits + list[i].GreenBits +
+                      list[i].BlueBits;
+                m2 = (bpp << 25) | (list[i].Width * list[i].Height);
+                if( m1 <= m2 )
+                {
+                    break;
+                }
+            }
+
+            // New entry at the end of the list?
+            if( i >= count )
+            {
+                list[count].Width     = dm.dmPelsWidth;
+                list[count].Height    = dm.dmPelsHeight;
+                list[count].RedBits   = r;
+                list[count].GreenBits = g;
+                list[count].BlueBits  = b;
+                count ++;
+            }
+            // Insert new entry in the list?
+            else if( m1 < m2 )
+            {
+                for( j = count; j > i; j -- )
+                {
+                    list[j] = list[j-1];
+                }
+                list[i].Width     = dm.dmPelsWidth;
+                list[i].Height    = dm.dmPelsHeight;
+                list[i].RedBits   = r;
+                list[i].GreenBits = g;
+                list[i].BlueBits  = b;
+                count ++;
+            }
+        }
+        mode ++;
+    }
+    while( success && (count < maxcount) );
+
+    return count;
+}
+
+
+//========================================================================
+// _glfwPlatformGetDesktopMode() - Get the desktop video mode
+//========================================================================
+
+void _glfwPlatformGetDesktopMode( GLFWvidmode *mode )
+{
+    DEVMODE dm;
+
+    // Get desktop display mode
+    dm.dmSize = sizeof( DEVMODE );
+    (void) EnumDisplaySettings( NULL, ENUM_REGISTRY_SETTINGS, &dm );
+
+    // Return desktop mode parameters
+    mode->Width  = dm.dmPelsWidth;
+    mode->Height = dm.dmPelsHeight;
+    _glfwBPP2RGB( dm.dmBitsPerPel, &mode->RedBits, &mode->GreenBits,
+                  &mode->BlueBits );
+}
+
+