| /* |
| * 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_bl |
| * mlib_ImageAffine_u8_2ch_bl |
| * mlib_ImageAffine_u8_3ch_bl |
| * mlib_ImageAffine_u8_4ch_bl |
| * - image affine transformation with Bilinear filtering |
| * SYNOPSIS |
| * mlib_status mlib_ImageAffine_u8_?ch_bl(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, |
| * mlib_s32 srcYStride) |
| * |
| * 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) |
| * srcYStride stride of source image |
| * |
| * DESCRIPTION |
| * The functions step along the lines from xLeft to xRight and apply |
| * the bilinear filtering. |
| * |
| */ |
| |
| #include "mlib_ImageAffine.h" |
| |
| /***************************************************************/ |
| #define DTYPE mlib_u8 |
| #define FTYPE mlib_f32 |
| |
| /***************************************************************/ |
| #define TTYPE mlib_f32 |
| #define I2F(x) mlib_U82F32[x] |
| #define ROUND(x) ((x) + 0.5f) |
| |
| #define FUN_NAME(CHAN) mlib_ImageAffine_u8_##CHAN##_bl |
| |
| /***************************************************************/ |
| #ifdef __sparc /* for SPARC, using floating-point multiplies is faster */ |
| |
| /***************************************************************/ |
| #define GET_POINTERS(ind) \ |
| fdx = (FTYPE)(X & MLIB_MASK) * scale; \ |
| fdy = (FTYPE)(Y & MLIB_MASK) * scale; \ |
| ySrc = MLIB_POINTER_SHIFT(Y); Y += dY; \ |
| xSrc = X >> MLIB_SHIFT; X += dX; \ |
| srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + ind * xSrc; \ |
| srcPixelPtr2 = (DTYPE *)((mlib_u8 *)srcPixelPtr + srcYStride) |
| |
| /***************************************************************/ |
| #define COUNT(ind) \ |
| pix0_##ind = a00_##ind + fdy * (a10_##ind - a00_##ind); \ |
| pix1_##ind = a01_##ind + fdy * (a11_##ind - a01_##ind); \ |
| res##ind = ROUND(pix0_##ind + fdx * (pix1_##ind - pix0_##ind)) |
| |
| /***************************************************************/ |
| #define LOAD(ind, ind1, ind2) \ |
| a00_##ind = I2F(srcPixelPtr[ind1]); \ |
| a01_##ind = I2F(srcPixelPtr[ind2]); \ |
| a10_##ind = I2F(srcPixelPtr2[ind1]); \ |
| a11_##ind = I2F(srcPixelPtr2[ind2]) |
| |
| /***************************************************************/ |
| mlib_status FUN_NAME(1ch)(mlib_affine_param *param) |
| { |
| DECLAREVAR_BL(); |
| DTYPE *dstLineEnd; |
| DTYPE *srcPixelPtr2; |
| FTYPE scale = (FTYPE) 1.0 / MLIB_PREC; |
| |
| for (j = yStart; j <= yFinish; j++) { |
| FTYPE fdx, fdy; |
| TTYPE a00_0, a01_0, a10_0, a11_0; |
| FTYPE pix0_0, pix1_0, res0; |
| |
| CLIP(1); |
| dstLineEnd = (DTYPE *) dstData + xRight; |
| |
| GET_POINTERS(1); |
| LOAD(0, 0, 1); |
| |
| #ifdef __SUNPRO_C |
| #pragma pipeloop(0) |
| #endif /* __SUNPRO_C */ |
| for (; dstPixelPtr < dstLineEnd; dstPixelPtr++) { |
| COUNT(0); |
| GET_POINTERS(1); |
| LOAD(0, 0, 1); |
| dstPixelPtr[0] = (DTYPE) res0; |
| } |
| |
| COUNT(0); |
| dstPixelPtr[0] = (DTYPE) res0; |
| } |
| |
| return MLIB_SUCCESS; |
| } |
| |
| /***************************************************************/ |
| mlib_status FUN_NAME(2ch)(mlib_affine_param *param) |
| { |
| DECLAREVAR_BL(); |
| DTYPE *dstLineEnd; |
| DTYPE *srcPixelPtr2; |
| FTYPE scale = (FTYPE) 1.0 / MLIB_PREC; |
| |
| for (j = yStart; j <= yFinish; j++) { |
| FTYPE fdx, fdy; |
| TTYPE a00_0, a01_0, a10_0, a11_0; |
| TTYPE a00_1, a01_1, a10_1, a11_1; |
| FTYPE pix0_0, pix1_0, res0; |
| FTYPE pix0_1, pix1_1, res1; |
| |
| CLIP(2); |
| dstLineEnd = (DTYPE *) dstData + 2 * xRight; |
| |
| GET_POINTERS(2); |
| LOAD(0, 0, 2); |
| LOAD(1, 1, 3); |
| |
| #ifdef __SUNPRO_C |
| #pragma pipeloop(0) |
| #endif /* __SUNPRO_C */ |
| for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 2) { |
| COUNT(0); |
| COUNT(1); |
| GET_POINTERS(2); |
| LOAD(0, 0, 2); |
| LOAD(1, 1, 3); |
| dstPixelPtr[0] = (DTYPE) res0; |
| dstPixelPtr[1] = (DTYPE) res1; |
| } |
| |
| COUNT(0); |
| COUNT(1); |
| dstPixelPtr[0] = (DTYPE) res0; |
| dstPixelPtr[1] = (DTYPE) res1; |
| } |
| |
| return MLIB_SUCCESS; |
| } |
| |
| /***************************************************************/ |
| mlib_status FUN_NAME(3ch)(mlib_affine_param *param) |
| { |
| DECLAREVAR_BL(); |
| DTYPE *dstLineEnd; |
| DTYPE *srcPixelPtr2; |
| FTYPE scale = (FTYPE) 1.0 / MLIB_PREC; |
| |
| for (j = yStart; j <= yFinish; j++) { |
| FTYPE fdx, fdy; |
| FTYPE a00_0, a01_0, a10_0, a11_0; |
| FTYPE a00_1, a01_1, a10_1, a11_1; |
| FTYPE a00_2, a01_2, a10_2, a11_2; |
| FTYPE pix0_0, pix1_0, res0; |
| FTYPE pix0_1, pix1_1, res1; |
| FTYPE pix0_2, pix1_2, res2; |
| |
| CLIP(3); |
| dstLineEnd = (DTYPE *) dstData + 3 * xRight; |
| |
| GET_POINTERS(3); |
| LOAD(0, 0, 3); |
| LOAD(1, 1, 4); |
| LOAD(2, 2, 5); |
| |
| #ifdef __SUNPRO_C |
| #pragma pipeloop(0) |
| #endif /* __SUNPRO_C */ |
| for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 3) { |
| COUNT(0); |
| COUNT(1); |
| COUNT(2); |
| GET_POINTERS(3); |
| LOAD(0, 0, 3); |
| LOAD(1, 1, 4); |
| LOAD(2, 2, 5); |
| dstPixelPtr[0] = (DTYPE) res0; |
| dstPixelPtr[1] = (DTYPE) res1; |
| dstPixelPtr[2] = (DTYPE) res2; |
| } |
| |
| COUNT(0); |
| COUNT(1); |
| COUNT(2); |
| dstPixelPtr[0] = (DTYPE) res0; |
| dstPixelPtr[1] = (DTYPE) res1; |
| dstPixelPtr[2] = (DTYPE) res2; |
| } |
| |
| return MLIB_SUCCESS; |
| } |
| |
| /***************************************************************/ |
| mlib_status FUN_NAME(4ch)(mlib_affine_param *param) |
| { |
| DECLAREVAR_BL(); |
| DTYPE *dstLineEnd; |
| DTYPE *srcPixelPtr2; |
| FTYPE scale = (FTYPE) 1.0 / MLIB_PREC; |
| |
| for (j = yStart; j <= yFinish; j++) { |
| FTYPE fdx, fdy; |
| TTYPE a00_0, a01_0, a10_0, a11_0; |
| TTYPE a00_1, a01_1, a10_1, a11_1; |
| TTYPE a00_2, a01_2, a10_2, a11_2; |
| TTYPE a00_3, a01_3, a10_3, a11_3; |
| FTYPE pix0_0, pix1_0, res0; |
| FTYPE pix0_1, pix1_1, res1; |
| FTYPE pix0_2, pix1_2, res2; |
| FTYPE pix0_3, pix1_3, res3; |
| |
| CLIP(4); |
| dstLineEnd = (DTYPE *) dstData + 4 * xRight; |
| |
| GET_POINTERS(4); |
| LOAD(0, 0, 4); |
| LOAD(1, 1, 5); |
| LOAD(2, 2, 6); |
| LOAD(3, 3, 7); |
| |
| #ifdef __SUNPRO_C |
| #pragma pipeloop(0) |
| #endif /* __SUNPRO_C */ |
| for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 4) { |
| COUNT(0); |
| COUNT(1); |
| COUNT(2); |
| COUNT(3); |
| GET_POINTERS(4); |
| LOAD(0, 0, 4); |
| LOAD(1, 1, 5); |
| LOAD(2, 2, 6); |
| LOAD(3, 3, 7); |
| dstPixelPtr[0] = (DTYPE) res0; |
| dstPixelPtr[1] = (DTYPE) res1; |
| dstPixelPtr[2] = (DTYPE) res2; |
| dstPixelPtr[3] = (DTYPE) res3; |
| } |
| |
| COUNT(0); |
| COUNT(1); |
| COUNT(2); |
| COUNT(3); |
| dstPixelPtr[0] = (DTYPE) res0; |
| dstPixelPtr[1] = (DTYPE) res1; |
| dstPixelPtr[2] = (DTYPE) res2; |
| dstPixelPtr[3] = (DTYPE) res3; |
| } |
| |
| return MLIB_SUCCESS; |
| } |
| |
| #else /* for x86, using integer multiplies is faster */ |
| |
| /* for SHORT/USHORT decrease MLIB_SHIFT due to |
| * overflow in multiplies like fdy * (a10 - a00) |
| */ |
| /* |
| #undef MLIB_SHIFT |
| #define MLIB_SHIFT 15 |
| */ |
| |
| #define MLIB_ROUND (1 << (MLIB_SHIFT - 1)) |
| |
| /***************************************************************/ |
| #define GET_POINTERS(ind) \ |
| fdx = X & MLIB_MASK; \ |
| fdy = Y & MLIB_MASK; \ |
| ySrc = MLIB_POINTER_SHIFT(Y); \ |
| xSrc = X >> MLIB_SHIFT; \ |
| srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc) + ind * xSrc; \ |
| srcPixelPtr2 = (DTYPE *)((mlib_u8 *)srcPixelPtr + srcYStride); \ |
| X += dX; \ |
| Y += dY |
| |
| /***************************************************************/ |
| #define COUNT(ind) \ |
| pix0_##ind = a00_##ind + ((fdy * (a10_##ind - a00_##ind) + MLIB_ROUND) >> MLIB_SHIFT); \ |
| pix1_##ind = a01_##ind + ((fdy * (a11_##ind - a01_##ind) + MLIB_ROUND) >> MLIB_SHIFT); \ |
| res##ind = pix0_##ind + ((fdx * (pix1_##ind - pix0_##ind) + MLIB_ROUND) >> MLIB_SHIFT) |
| |
| /***************************************************************/ |
| #define LOAD(ind, ind1, ind2) \ |
| a00_##ind = srcPixelPtr[ind1]; \ |
| a01_##ind = srcPixelPtr[ind2]; \ |
| a10_##ind = srcPixelPtr2[ind1]; \ |
| a11_##ind = srcPixelPtr2[ind2] |
| |
| /***************************************************************/ |
| mlib_status FUN_NAME(1ch)(mlib_affine_param *param) |
| { |
| DECLAREVAR_BL(); |
| DTYPE *dstLineEnd; |
| DTYPE *srcPixelPtr2; |
| |
| #if MLIB_SHIFT == 15 |
| dX = (dX + 1) >> 1; |
| dY = (dY + 1) >> 1; |
| #endif /* MLIB_SHIFT == 15 */ |
| |
| for (j = yStart; j <= yFinish; j++) { |
| mlib_s32 fdx, fdy; |
| mlib_s32 a00_0, a01_0, a10_0, a11_0; |
| mlib_s32 pix0_0, pix1_0, res0; |
| |
| CLIP(1); |
| dstLineEnd = (DTYPE *) dstData + xRight; |
| #if MLIB_SHIFT == 15 |
| X = X >> 1; |
| Y = Y >> 1; |
| #endif /* MLIB_SHIFT == 15 */ |
| |
| GET_POINTERS(1); |
| LOAD(0, 0, 1); |
| |
| #ifdef __SUNPRO_C |
| #pragma pipeloop(0) |
| #endif /* __SUNPRO_C */ |
| for (; dstPixelPtr < dstLineEnd; dstPixelPtr++) { |
| COUNT(0); |
| GET_POINTERS(1); |
| LOAD(0, 0, 1); |
| dstPixelPtr[0] = (DTYPE) res0; |
| } |
| |
| COUNT(0); |
| dstPixelPtr[0] = (DTYPE) res0; |
| } |
| |
| return MLIB_SUCCESS; |
| } |
| |
| /***************************************************************/ |
| mlib_status FUN_NAME(2ch)(mlib_affine_param *param) |
| { |
| DECLAREVAR_BL(); |
| DTYPE *dstLineEnd; |
| DTYPE *srcPixelPtr2; |
| |
| #if MLIB_SHIFT == 15 |
| dX = (dX + 1) >> 1; |
| dY = (dY + 1) >> 1; |
| #endif /* MLIB_SHIFT == 15 */ |
| |
| for (j = yStart; j <= yFinish; j++) { |
| mlib_s32 fdx, fdy; |
| mlib_s32 a00_0, a01_0, a10_0, a11_0; |
| mlib_s32 a00_1, a01_1, a10_1, a11_1; |
| mlib_s32 pix0_0, pix1_0, res0; |
| mlib_s32 pix0_1, pix1_1, res1; |
| |
| CLIP(2); |
| dstLineEnd = (DTYPE *) dstData + 2 * xRight; |
| #if MLIB_SHIFT == 15 |
| X = X >> 1; |
| Y = Y >> 1; |
| #endif /* MLIB_SHIFT == 15 */ |
| |
| GET_POINTERS(2); |
| LOAD(0, 0, 2); |
| LOAD(1, 1, 3); |
| |
| #ifdef __SUNPRO_C |
| #pragma pipeloop(0) |
| #endif /* __SUNPRO_C */ |
| for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 2) { |
| COUNT(0); |
| COUNT(1); |
| GET_POINTERS(2); |
| LOAD(0, 0, 2); |
| LOAD(1, 1, 3); |
| dstPixelPtr[0] = (DTYPE) res0; |
| dstPixelPtr[1] = (DTYPE) res1; |
| } |
| |
| COUNT(0); |
| COUNT(1); |
| dstPixelPtr[0] = (DTYPE) res0; |
| dstPixelPtr[1] = (DTYPE) res1; |
| } |
| |
| return MLIB_SUCCESS; |
| } |
| |
| /***************************************************************/ |
| mlib_status FUN_NAME(3ch)(mlib_affine_param *param) |
| { |
| DECLAREVAR_BL(); |
| DTYPE *dstLineEnd; |
| DTYPE *srcPixelPtr2; |
| |
| #if MLIB_SHIFT == 15 |
| dX = (dX + 1) >> 1; |
| dY = (dY + 1) >> 1; |
| #endif /* MLIB_SHIFT == 15 */ |
| |
| for (j = yStart; j <= yFinish; j++) { |
| mlib_s32 fdx, fdy; |
| mlib_s32 a00_0, a01_0, a10_0, a11_0; |
| mlib_s32 a00_1, a01_1, a10_1, a11_1; |
| mlib_s32 a00_2, a01_2, a10_2, a11_2; |
| mlib_s32 pix0_0, pix1_0, res0; |
| mlib_s32 pix0_1, pix1_1, res1; |
| mlib_s32 pix0_2, pix1_2, res2; |
| |
| CLIP(3); |
| dstLineEnd = (DTYPE *) dstData + 3 * xRight; |
| #if MLIB_SHIFT == 15 |
| X = X >> 1; |
| Y = Y >> 1; |
| #endif /* MLIB_SHIFT == 15 */ |
| |
| GET_POINTERS(3); |
| LOAD(0, 0, 3); |
| LOAD(1, 1, 4); |
| LOAD(2, 2, 5); |
| |
| #ifdef __SUNPRO_C |
| #pragma pipeloop(0) |
| #endif /* __SUNPRO_C */ |
| for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 3) { |
| COUNT(0); |
| COUNT(1); |
| COUNT(2); |
| GET_POINTERS(3); |
| LOAD(0, 0, 3); |
| LOAD(1, 1, 4); |
| LOAD(2, 2, 5); |
| dstPixelPtr[0] = (DTYPE) res0; |
| dstPixelPtr[1] = (DTYPE) res1; |
| dstPixelPtr[2] = (DTYPE) res2; |
| } |
| |
| COUNT(0); |
| COUNT(1); |
| COUNT(2); |
| dstPixelPtr[0] = (DTYPE) res0; |
| dstPixelPtr[1] = (DTYPE) res1; |
| dstPixelPtr[2] = (DTYPE) res2; |
| } |
| |
| return MLIB_SUCCESS; |
| } |
| |
| /***************************************************************/ |
| mlib_status FUN_NAME(4ch)(mlib_affine_param *param) |
| { |
| DECLAREVAR_BL(); |
| DTYPE *dstLineEnd; |
| DTYPE *srcPixelPtr2; |
| |
| #if MLIB_SHIFT == 15 |
| dX = (dX + 1) >> 1; |
| dY = (dY + 1) >> 1; |
| #endif /* MLIB_SHIFT == 15 */ |
| |
| for (j = yStart; j <= yFinish; j++) { |
| mlib_s32 fdx, fdy; |
| mlib_s32 a00_0, a01_0, a10_0, a11_0; |
| mlib_s32 a00_1, a01_1, a10_1, a11_1; |
| mlib_s32 a00_2, a01_2, a10_2, a11_2; |
| mlib_s32 a00_3, a01_3, a10_3, a11_3; |
| mlib_s32 pix0_0, pix1_0, res0; |
| mlib_s32 pix0_1, pix1_1, res1; |
| mlib_s32 pix0_2, pix1_2, res2; |
| mlib_s32 pix0_3, pix1_3, res3; |
| |
| CLIP(4); |
| dstLineEnd = (DTYPE *) dstData + 4 * xRight; |
| #if MLIB_SHIFT == 15 |
| X = X >> 1; |
| Y = Y >> 1; |
| #endif /* MLIB_SHIFT == 15 */ |
| |
| GET_POINTERS(4); |
| LOAD(0, 0, 4); |
| LOAD(1, 1, 5); |
| LOAD(2, 2, 6); |
| LOAD(3, 3, 7); |
| |
| #ifdef __SUNPRO_C |
| #pragma pipeloop(0) |
| #endif /* __SUNPRO_C */ |
| for (; dstPixelPtr < dstLineEnd; dstPixelPtr += 4) { |
| COUNT(0); |
| COUNT(1); |
| COUNT(2); |
| COUNT(3); |
| GET_POINTERS(4); |
| LOAD(0, 0, 4); |
| LOAD(1, 1, 5); |
| LOAD(2, 2, 6); |
| LOAD(3, 3, 7); |
| dstPixelPtr[0] = (DTYPE) res0; |
| dstPixelPtr[1] = (DTYPE) res1; |
| dstPixelPtr[2] = (DTYPE) res2; |
| dstPixelPtr[3] = (DTYPE) res3; |
| } |
| |
| COUNT(0); |
| COUNT(1); |
| COUNT(2); |
| COUNT(3); |
| dstPixelPtr[0] = (DTYPE) res0; |
| dstPixelPtr[1] = (DTYPE) res1; |
| dstPixelPtr[2] = (DTYPE) res2; |
| dstPixelPtr[3] = (DTYPE) res3; |
| } |
| |
| return MLIB_SUCCESS; |
| } |
| |
| #endif /* __sparc ( for SPARC, using floating-point multiplies is faster ) */ |
| |
| /***************************************************************/ |
