113 lines
3.7 KiB
C++
113 lines
3.7 KiB
C++
/*
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* Copyright (c) 2002 Light Weight Java Game Library Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'Light Weight Java Game Library' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* $Id$
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*
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* math library.
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*
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* @author cix_foo <cix_foo@users.sourceforge.net>
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* @version $Revision$
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*/
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#ifdef _WIN32
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#include <windows.h>
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#endif
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#include "org_lwjgl_Math_MatrixOpSubtract_MatrixOpSafe.h"
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#include "MatrixOpCommon.h"
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/*
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* Class: org_lwjgl_Math_MatrixOpSubtract_MatrixOpSafe
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* Method: execute
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* Signature: (IIIIIZIIIIIZIIZ)V
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_Math_00024MatrixOpSubtract_00024MatrixOpSafe_execute
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(
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JNIEnv * env,
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jobject obj,
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jint leftSourceAddress,
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jint leftSourceStride,
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jint leftElements,
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jint leftSourceWidth,
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jint leftSourceHeight,
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jboolean transposeLeftSource,
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jint rightSourceAddress,
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jint rightSourceStride,
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jint rightElements,
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jint rightSourceWidth,
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jint rightSourceHeight,
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jboolean transposeRightSource,
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jint destAddress,
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jint destStride,
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jboolean transposeDest
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)
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{
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if (transposeLeftSource && transposeRightSource)
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{
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transposeLeftSource = false;
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transposeRightSource = false;
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transposeDest = !transposeDest;
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}
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MatrixSrc left (leftSourceAddress, leftSourceStride,
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leftSourceWidth, leftSourceHeight, leftElements, transposeLeftSource);
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MatrixSrc right (rightSourceAddress, leftSourceStride,
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rightSourceWidth, rightSourceHeight, rightElements, transposeRightSource);
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MatrixDst dest (destAddress, destStride,
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left.width, left.height, left.elements * right.elements, transposeDest);
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float * leftMatrix, * rightMatrix, * destMatrix;
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left.rewind();
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for (int i = 0; i < left.elements; i++)
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{
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leftMatrix = left.nextMatrix();
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right.rewind();
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for (int j = 0; j < right.elements; j++)
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{
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rightMatrix = right.nextMatrix();
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destMatrix = dest.nextMatrix();
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int k = dest.width * dest.height;
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while (k--)
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destMatrix[k] = leftMatrix[k] - rightMatrix[k];
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dest.writeComplete();
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}
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}
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}
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