glfw/src/fullscreen.c
2010-09-09 21:34:42 +02:00

110 lines
3.3 KiB
C

//========================================================================
// GLFW - An OpenGL framework
// Platform: Any
// API version: 3.0
// 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"
//////////////////////////////////////////////////////////////////////////
////// GLFW public API //////
//////////////////////////////////////////////////////////////////////////
//========================================================================
// Get a list of available video modes
//========================================================================
GLFWAPI int glfwGetVideoModes(GLFWvidmode* list, int maxcount)
{
int count, i, swap, res1, res2, depth1, depth2;
GLFWvidmode vm;
if (!_glfwInitialized)
{
_glfwSetError(GLFW_NOT_INITIALIZED);
return;
}
if (maxcount <= 0 || list == NULL)
{
// TODO: Figure out if this is an error
return 0;
}
// Get list of video modes
count = _glfwPlatformGetVideoModes(list, maxcount);
// Sort list (bubble sort)
do
{
swap = 0;
for (i = 0; i < count - 1; i++)
{
res1 = list[i].width * list[i].height;
depth1 = list[i].redBits + list[i].greenBits + list[i].blueBits;
res2 = list[i + 1].width * list[i + 1].height;
depth2 = list[i + 1].redBits + list[i + 1].greenBits +
list[i + 1].blueBits;
if ((depth2 < depth1) || ((depth2 == depth1) && (res2 < res1)))
{
vm = list[i];
list[i] = list[i + 1];
list[i + 1] = vm;
swap = 1;
}
}
}
while (swap);
return count;
}
//========================================================================
// Get the desktop video mode
//========================================================================
GLFWAPI void glfwGetDesktopMode(GLFWvidmode* mode)
{
if (!_glfwInitialized)
{
_glfwSetError(GLFW_NOT_INITIALIZED);
return;
}
if (mode == NULL)
{
_glfwSetError(GLFW_INVALID_VALUE);
return;
}
_glfwPlatformGetDesktopMode(mode);
}