| /* |
| * Copyright (c) 1997, 2003, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| |
| /* |
| * FUNCTION |
| * mlib_ImageAffine_u8_1ch_nn |
| * mlib_ImageAffine_u8_2ch_nn |
| * mlib_ImageAffine_u8_3ch_nn |
| * mlib_ImageAffine_u8_4ch_nn |
| * mlib_ImageAffine_s16_1ch_nn |
| * mlib_ImageAffine_s16_2ch_nn |
| * mlib_ImageAffine_s16_3ch_nn |
| * mlib_ImageAffine_s16_4ch_nn |
| * - image affine transformation with Nearest Neighbor filtering |
| * SYNOPSIS |
| * mlib_status mlib_ImageAffine_[u8|s16]_?ch_nn(mlib_s32 *leftEdges, |
| * mlib_s32 *rightEdges, |
| * mlib_s32 *xStarts, |
| * mlib_s32 *yStarts, |
| * mlib_s32 *sides, |
| * mlib_u8 *dstData, |
| * mlib_u8 **lineAddr, |
| * mlib_s32 dstYStride, |
| * mlib_s32 is_affine) |
| * |
| * ARGUMENTS |
| * leftEdges array[dstHeight] of xLeft coordinates |
| * RightEdges array[dstHeight] of xRight coordinates |
| * xStarts array[dstHeight] of xStart * 65536 coordinates |
| * yStarts array[dstHeight] of yStart * 65536 coordinates |
| * sides output array[4]. sides[0] is yStart, sides[1] is yFinish, |
| * sides[2] is dx * 65536, sides[3] is dy * 65536 |
| * dstData pointer to the first pixel on (yStart - 1) line |
| * lineAddr array[srcHeight] of pointers to the first pixel on |
| * the corresponding lines |
| * dstYStride stride of destination image |
| * is_affine indicator (Affine - GridWarp) |
| * |
| * DESCRIPTION |
| * The functions step along the lines from xLeft to xRight and get the |
| * nearest pixel values as being with the following coordinates |
| * ((xStart - (i - xLeft) * dx) >> 16, (yStart - (i - xLeft) * dy) >> 16) |
| * |
| */ |
| |
| #include "mlib_ImageAffine.h" |
| |
| /***************************************************************/ |
| #undef DTYPE |
| #define DTYPE mlib_u8 |
| |
| mlib_status mlib_ImageAffine_u8_1ch_nn(mlib_affine_param *param) |
| { |
| DECLAREVAR_NN(); |
| DTYPE *dstLineEnd; |
| |
| for (j = yStart; j <= yFinish; j++) { |
| DTYPE pix0; |
| |
| CLIP(1); |
| dstLineEnd = (DTYPE *) dstData + xRight; |
| |
| #ifdef __SUNPRO_C |
| #pragma pipeloop(0) |
| #endif /* __SUNPRO_C */ |
| for (; dstPixelPtr <= dstLineEnd; dstPixelPtr++) { |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc); |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| pix0 = srcPixelPtr[xSrc]; |
| dstPixelPtr[0] = pix0; |
| } |
| } |
| |
| return MLIB_SUCCESS; |
| } |
| |
| /***************************************************************/ |
| mlib_status mlib_ImageAffine_u8_2ch_nn(mlib_affine_param *param) |
| { |
| DECLAREVAR_NN(); |
| DTYPE *dstLineEnd; |
| |
| for (j = yStart; j <= yFinish; j++) { |
| DTYPE pix0, pix1; |
| |
| CLIP(2); |
| dstLineEnd = (DTYPE *) dstData + 2 * xRight; |
| |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 2 * xSrc; |
| pix0 = srcPixelPtr[0]; |
| pix1 = srcPixelPtr[1]; |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| #ifdef __SUNPRO_C |
| #pragma pipeloop(0) |
| #endif /* __SUNPRO_C */ |
| for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 2) { |
| srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 2 * xSrc; |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| dstPixelPtr[0] = pix0; |
| dstPixelPtr[1] = pix1; |
| pix0 = srcPixelPtr[0]; |
| pix1 = srcPixelPtr[1]; |
| } |
| |
| dstPixelPtr[0] = pix0; |
| dstPixelPtr[1] = pix1; |
| } |
| |
| return MLIB_SUCCESS; |
| } |
| |
| /***************************************************************/ |
| mlib_status mlib_ImageAffine_u8_3ch_nn(mlib_affine_param *param) |
| { |
| DECLAREVAR_NN(); |
| DTYPE *dstLineEnd; |
| |
| for (j = yStart; j <= yFinish; j++) { |
| DTYPE pix0, pix1, pix2; |
| |
| CLIP(3); |
| dstLineEnd = (DTYPE *) dstData + 3 * xRight; |
| |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 3 * xSrc; |
| pix0 = srcPixelPtr[0]; |
| pix1 = srcPixelPtr[1]; |
| pix2 = srcPixelPtr[2]; |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| #ifdef __SUNPRO_C |
| #pragma pipeloop(0) |
| #endif /* __SUNPRO_C */ |
| for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 3) { |
| srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 3 * xSrc; |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| dstPixelPtr[0] = pix0; |
| dstPixelPtr[1] = pix1; |
| dstPixelPtr[2] = pix2; |
| pix0 = srcPixelPtr[0]; |
| pix1 = srcPixelPtr[1]; |
| pix2 = srcPixelPtr[2]; |
| } |
| |
| dstPixelPtr[0] = pix0; |
| dstPixelPtr[1] = pix1; |
| dstPixelPtr[2] = pix2; |
| } |
| |
| return MLIB_SUCCESS; |
| } |
| |
| /***************************************************************/ |
| mlib_status mlib_ImageAffine_u8_4ch_nn(mlib_affine_param *param) |
| { |
| DECLAREVAR_NN(); |
| DTYPE *dstLineEnd; |
| |
| for (j = yStart; j <= yFinish; j++) { |
| DTYPE pix0, pix1, pix2, pix3; |
| CLIP(4); |
| dstLineEnd = (DTYPE *) dstData + 4 * xRight; |
| |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 4 * xSrc; |
| pix0 = srcPixelPtr[0]; |
| pix1 = srcPixelPtr[1]; |
| pix2 = srcPixelPtr[2]; |
| pix3 = srcPixelPtr[3]; |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 4) { |
| srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 4 * xSrc; |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| dstPixelPtr[0] = pix0; |
| dstPixelPtr[1] = pix1; |
| dstPixelPtr[2] = pix2; |
| dstPixelPtr[3] = pix3; |
| pix0 = srcPixelPtr[0]; |
| pix1 = srcPixelPtr[1]; |
| pix2 = srcPixelPtr[2]; |
| pix3 = srcPixelPtr[3]; |
| } |
| |
| dstPixelPtr[0] = pix0; |
| dstPixelPtr[1] = pix1; |
| dstPixelPtr[2] = pix2; |
| dstPixelPtr[3] = pix3; |
| } |
| |
| return MLIB_SUCCESS; |
| } |
| |
| /***************************************************************/ |
| #undef DTYPE |
| #define DTYPE mlib_u16 |
| |
| mlib_status mlib_ImageAffine_s16_1ch_nn(mlib_affine_param *param) |
| { |
| DECLAREVAR_NN(); |
| DTYPE *dstLineEnd; |
| |
| for (j = yStart; j <= yFinish; j++) { |
| mlib_s32 pix0; |
| |
| CLIP(1); |
| dstLineEnd = (DTYPE *) dstData + xRight; |
| |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc); |
| pix0 = srcPixelPtr[xSrc]; |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| for (; dstPixelPtr < dstLineEnd; dstPixelPtr++) { |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc); |
| dstPixelPtr[0] = pix0; |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| pix0 = srcPixelPtr[xSrc]; |
| } |
| |
| dstPixelPtr[0] = pix0; |
| } |
| |
| return MLIB_SUCCESS; |
| } |
| |
| /***************************************************************/ |
| mlib_status mlib_ImageAffine_s16_2ch_nn(mlib_affine_param *param) |
| { |
| DECLAREVAR_NN(); |
| DTYPE *dstLineEnd; |
| |
| for (j = yStart; j <= yFinish; j++) { |
| mlib_s32 pix0, pix1; |
| |
| CLIP(2); |
| dstLineEnd = (DTYPE *) dstData + 2 * xRight; |
| |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 2 * xSrc; |
| pix0 = srcPixelPtr[0]; |
| pix1 = srcPixelPtr[1]; |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| #ifdef __SUNPRO_C |
| #pragma pipeloop(0) |
| #endif /* __SUNPRO_C */ |
| for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 2) { |
| srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 2 * xSrc; |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| dstPixelPtr[0] = pix0; |
| dstPixelPtr[1] = pix1; |
| pix0 = srcPixelPtr[0]; |
| pix1 = srcPixelPtr[1]; |
| } |
| |
| dstPixelPtr[0] = pix0; |
| dstPixelPtr[1] = pix1; |
| } |
| |
| return MLIB_SUCCESS; |
| } |
| |
| /***************************************************************/ |
| mlib_status mlib_ImageAffine_s16_3ch_nn(mlib_affine_param *param) |
| { |
| DECLAREVAR_NN(); |
| DTYPE *dstLineEnd; |
| |
| for (j = yStart; j <= yFinish; j++) { |
| mlib_s32 pix0, pix1, pix2; |
| |
| CLIP(3); |
| dstLineEnd = (DTYPE *) dstData + 3 * xRight; |
| |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 3 * xSrc; |
| pix0 = srcPixelPtr[0]; |
| pix1 = srcPixelPtr[1]; |
| pix2 = srcPixelPtr[2]; |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| #ifdef __SUNPRO_C |
| #pragma pipeloop(0) |
| #endif /* __SUNPRO_C */ |
| for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 3) { |
| srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 3 * xSrc; |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| dstPixelPtr[0] = pix0; |
| dstPixelPtr[1] = pix1; |
| dstPixelPtr[2] = pix2; |
| pix0 = srcPixelPtr[0]; |
| pix1 = srcPixelPtr[1]; |
| pix2 = srcPixelPtr[2]; |
| } |
| |
| dstPixelPtr[0] = pix0; |
| dstPixelPtr[1] = pix1; |
| dstPixelPtr[2] = pix2; |
| } |
| |
| return MLIB_SUCCESS; |
| } |
| |
| /***************************************************************/ |
| mlib_status mlib_ImageAffine_s16_4ch_nn(mlib_affine_param *param) |
| { |
| DECLAREVAR_NN(); |
| DTYPE *dstLineEnd; |
| |
| for (j = yStart; j <= yFinish; j++) { |
| mlib_s32 pix0, pix1, pix2, pix3; |
| CLIP(4); |
| dstLineEnd = (DTYPE *) dstData + 4 * xRight; |
| |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 4 * xSrc; |
| pix0 = srcPixelPtr[0]; |
| pix1 = srcPixelPtr[1]; |
| pix2 = srcPixelPtr[2]; |
| pix3 = srcPixelPtr[3]; |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 4) { |
| srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + 4 * xSrc; |
| ySrc = MLIB_POINTER_SHIFT(Y); |
| Y += dY; |
| xSrc = X >> MLIB_SHIFT; |
| X += dX; |
| dstPixelPtr[0] = pix0; |
| dstPixelPtr[1] = pix1; |
| dstPixelPtr[2] = pix2; |
| dstPixelPtr[3] = pix3; |
| pix0 = srcPixelPtr[0]; |
| pix1 = srcPixelPtr[1]; |
| pix2 = srcPixelPtr[2]; |
| pix3 = srcPixelPtr[3]; |
| } |
| |
| dstPixelPtr[0] = pix0; |
| dstPixelPtr[1] = pix1; |
| dstPixelPtr[2] = pix2; |
| dstPixelPtr[3] = pix3; |
| } |
| |
| return MLIB_SUCCESS; |
| } |
| |
| /***************************************************************/ |