glfw/lib/joystick.c

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//========================================================================
// GLFW - An OpenGL framework
// Platform: Any
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// API version: 3.0
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// 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 user functions ****
//************************************************************************
//========================================================================
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// Determine joystick capabilities
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//========================================================================
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GLFWAPI int glfwGetJoystickParam(int joy, int param)
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{
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if (!_glfwInitialized)
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return 0;
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return _glfwPlatformGetJoystickParam(joy, param);
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}
//========================================================================
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// Get joystick axis positions
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//========================================================================
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GLFWAPI int glfwGetJoystickPos(int joy, float* pos, int numaxes)
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{
int i;
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if (!_glfwInitialized)
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return 0;
// Clear positions
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for (i = 0; i < numaxes; i++)
pos[i] = 0.0f;
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return _glfwPlatformGetJoystickPos(joy, pos, numaxes);
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}
//========================================================================
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// Get joystick button states
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//========================================================================
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GLFWAPI int glfwGetJoystickButtons(int joy,
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unsigned char* buttons,
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int numbuttons)
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{
int i;
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if (!_glfwInitialized)
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return 0;
// Clear button states
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for (i = 0; i < numbuttons; i++)
buttons[i] = GLFW_RELEASE;
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return _glfwPlatformGetJoystickButtons(joy, buttons, numbuttons);
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}