102 lines
3.2 KiB
C
102 lines
3.2 KiB
C
|
//========================================================================
|
||
|
|
// GLFW - An OpenGL framework
|
||
|
|
// File: dos_fullscreen.c
|
||
|
|
// Platform: DOS
|
||
|
|
// 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;
|
||
|
|
int bpp2;
|
||
|
|
|
||
|
|
// 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;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//************************************************************************
|
||
|
|
//**** Platform implementation functions ****
|
||
|
|
//************************************************************************
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// _glfwPlatformGetVideoModes() - List available video modes
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
int _glfwPlatformGetVideoModes( GLFWvidmode *list, int maxcount )
|
||
|
|
{
|
||
|
|
if( maxcount <= 0 ) return 0;
|
||
|
|
|
||
|
|
// Dummy...
|
||
|
|
list[0].Width = 640;
|
||
|
|
list[0].Height = 480;
|
||
|
|
list[0].RedBits = 5;
|
||
|
|
list[0].GreenBits = 6;
|
||
|
|
list[0].BlueBits = 5;
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//========================================================================
|
||
|
|
// _glfwPlatformGetDesktopMode() - Get the desktop video mode
|
||
|
|
//========================================================================
|
||
|
|
|
||
|
|
void _glfwPlatformGetDesktopMode( GLFWvidmode *mode )
|
||
|
|
{
|
||
|
|
// Dummy...
|
||
|
|
mode->Width = 640;
|
||
|
|
mode->Height = 480;
|
||
|
|
mode->RedBits = 5;
|
||
|
|
mode->GreenBits = 6;
|
||
|
|
mode->BlueBits = 5;
|
||
|
|
}
|