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Java example source code file (mlib_v_ImageZoom_NN_f.c)
The mlib_v_ImageZoom_NN_f.c Java example source code/* * Copyright (c) 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_ImageZoom - image scaling with edge condition * * SYNOPSIS * mlib_status mlib_ImageZoom(mlib_image *dst, * const mlib_image *src, * mlib_f32 zoomx, * mlib_f32 zoomy, * mlib_filter filter, * mlib_edge edge) * * ARGUMENTS * dst Pointer to destination image * src Pointer to source image * zoomx X zoom factor. * zoomy Y zoom factor. * filter Type of resampling filter. * edge Type of edge condition. * * DESCRIPTION * The center of the source image is mapped to the center of the * destination image. * * The upper-left corner pixel of an image is located at (0.5, 0.5). * * The resampling filter can be one of the following: * MLIB_NEAREST * MLIB_BILINEAR * MLIB_BICUBIC * MLIB_BICUBIC2 * * The edge condition can be one of the following: * MLIB_EDGE_DST_NO_WRITE (default) * MLIB_EDGE_DST_FILL_ZERO * MLIB_EDGE_OP_NEAREST * MLIB_EDGE_SRC_EXTEND * MLIB_EDGE_SRC_PADDED */ #include <mlib_image.h> #include <vis_proto.h> /***************************************************************/ #define _MLIB_VIS_VER_ #include <mlib_ImageZoom.h> /***************************************************************/ #define VARIABLE(FORMAT) \ mlib_s32 j, \ dx = GetElemStruct(DX), \ dy = GetElemStruct(DY), \ x = GetElemSubStruct(current, srcX), \ y = GetElemSubStruct(current, srcY), \ src_stride = GetElemStruct(src_stride), \ dst_stride = GetElemStruct(dst_stride), \ width = GetElemSubStruct(current, width), \ height = GetElemSubStruct(current, height); \ FORMAT *sp = GetElemSubStruct(current, sp), \ *dp = GetElemSubStruct(current, dp) /***************************************************************/ mlib_status mlib_ImageZoom_U8_1_Nearest(mlib_work_image *param) { VARIABLE(mlib_u8); mlib_u8 *dl = dp, *tsp; mlib_s32 y0 = -1, dx7 = 7*dx, dx15 = 8*dx + dx7; tsp = sp; y = GetElemSubStruct(current, srcY) & MLIB_MASK; for (j = 0; j < height; j++) { if ((y0 >> MLIB_SHIFT) == (y >> MLIB_SHIFT)) { mlib_ImageCopy_na(dl - dst_stride, dl, width); } else { mlib_u8 *dp = dl, *dend = dl + width; vis_write_gsr(7); x = GetElemSubStruct(current, srcX) & MLIB_MASK; while (((mlib_addr)dp & 7) && (dp < dend)) { *dp++ = tsp[x >> MLIB_SHIFT]; x += dx; } x += dx7; #pragma pipeloop(0) for (; dp <= dend - 8; dp += 8) { mlib_d64 s0; s0 = vis_faligndata(vis_ld_u8_i(tsp, x >> MLIB_SHIFT), s0); x -= dx; s0 = vis_faligndata(vis_ld_u8_i(tsp, x >> MLIB_SHIFT), s0); x -= dx; s0 = vis_faligndata(vis_ld_u8_i(tsp, x >> MLIB_SHIFT), s0); x -= dx; s0 = vis_faligndata(vis_ld_u8_i(tsp, x >> MLIB_SHIFT), s0); x -= dx; s0 = vis_faligndata(vis_ld_u8_i(tsp, x >> MLIB_SHIFT), s0); x -= dx; s0 = vis_faligndata(vis_ld_u8_i(tsp, x >> MLIB_SHIFT), s0); x -= dx; s0 = vis_faligndata(vis_ld_u8_i(tsp, x >> MLIB_SHIFT), s0); x -= dx; s0 = vis_faligndata(vis_ld_u8_i(tsp, x >> MLIB_SHIFT), s0); x += dx15; *(mlib_d64*)dp = s0; } x -= dx7; while (dp < dend) { *dp++ = tsp[x >> MLIB_SHIFT]; x += dx; } } y0 = y; y += dy; dl = (void*)((mlib_u8*)dl + dst_stride); tsp = (void*)((mlib_u8*)sp + (y >> MLIB_SHIFT) * src_stride); } return MLIB_SUCCESS; } /***************************************************************/ mlib_status mlib_ImageZoom_U8_3_Nearest(mlib_work_image *param) { VARIABLE(mlib_u8); mlib_u8 *dl = dp, *tsp, *tt; mlib_s32 cx, y0 = -1, dx7 = 7*dx, dx15 = 8*dx + dx7; tsp = sp; y = GetElemSubStruct(current, srcY) & MLIB_MASK; for (j = 0; j < height; j++) { if ((y0 >> MLIB_SHIFT) == (y >> MLIB_SHIFT)) { mlib_ImageCopy_na(dl - dst_stride, dl, 3*width); } else { mlib_u8 *dp = dl, *dend = dl + 3*width; vis_write_gsr(7); x = GetElemSubStruct(current, srcX) & MLIB_MASK; while (((mlib_addr)dp & 7) && (dp < dend)) { cx = x >> MLIB_SHIFT; tt = tsp + 2*cx + cx; dp[0] = tt[0]; dp[1] = tt[1]; dp[2] = tt[2]; x += dx; dp += 3; } x += dx7; #pragma pipeloop(0) for (; dp <= dend - 24; dp += 24) { mlib_d64 s0, s1, s2; cx = x >> MLIB_SHIFT; tt = tsp + 2*cx + cx; x -= dx; s2 = vis_faligndata(vis_ld_u8_i(tt, 2), s2); s2 = vis_faligndata(vis_ld_u8_i(tt, 1), s2); s2 = vis_faligndata(vis_ld_u8_i(tt, 0), s2); cx = x >> MLIB_SHIFT; tt = tsp + 2*cx + cx; x -= dx; s2 = vis_faligndata(vis_ld_u8_i(tt, 2), s2); s2 = vis_faligndata(vis_ld_u8_i(tt, 1), s2); s2 = vis_faligndata(vis_ld_u8_i(tt, 0), s2); cx = x >> MLIB_SHIFT; tt = tsp + 2*cx + cx; x -= dx; s2 = vis_faligndata(vis_ld_u8_i(tt, 2), s2); s2 = vis_faligndata(vis_ld_u8_i(tt, 1), s2); s1 = vis_faligndata(vis_ld_u8_i(tt, 0), s1); cx = x >> MLIB_SHIFT; tt = tsp + 2*cx + cx; x -= dx; s1 = vis_faligndata(vis_ld_u8_i(tt, 2), s1); s1 = vis_faligndata(vis_ld_u8_i(tt, 1), s1); s1 = vis_faligndata(vis_ld_u8_i(tt, 0), s1); cx = x >> MLIB_SHIFT; tt = tsp + 2*cx + cx; x -= dx; s1 = vis_faligndata(vis_ld_u8_i(tt, 2), s1); s1 = vis_faligndata(vis_ld_u8_i(tt, 1), s1); s1 = vis_faligndata(vis_ld_u8_i(tt, 0), s1); cx = x >> MLIB_SHIFT; tt = tsp + 2*cx + cx; x -= dx; s1 = vis_faligndata(vis_ld_u8_i(tt, 2), s1); s0 = vis_faligndata(vis_ld_u8_i(tt, 1), s0); s0 = vis_faligndata(vis_ld_u8_i(tt, 0), s0); cx = x >> MLIB_SHIFT; tt = tsp + 2*cx + cx; x -= dx; s0 = vis_faligndata(vis_ld_u8_i(tt, 2), s0); s0 = vis_faligndata(vis_ld_u8_i(tt, 1), s0); s0 = vis_faligndata(vis_ld_u8_i(tt, 0), s0); cx = x >> MLIB_SHIFT; tt = tsp + 2*cx + cx; x += dx15; s0 = vis_faligndata(vis_ld_u8_i(tt, 2), s0); s0 = vis_faligndata(vis_ld_u8_i(tt, 1), s0); s0 = vis_faligndata(vis_ld_u8_i(tt, 0), s0); ((mlib_d64*)dp)[0] = s0; ((mlib_d64*)dp)[1] = s1; ((mlib_d64*)dp)[2] = s2; } x -= dx7; while (dp < dend) { cx = x >> MLIB_SHIFT; tt = tsp + 2*cx + cx; dp[0] = tt[0]; dp[1] = tt[1]; dp[2] = tt[2]; x += dx; dp += 3; } } y0 = y; y += dy; dl = (void*)((mlib_u8*)dl + dst_stride); tsp = (void*)((mlib_u8*)sp + (y >> MLIB_SHIFT) * src_stride); } return MLIB_SUCCESS; } /***************************************************************/ mlib_status mlib_ImageZoom_S16_3_Nearest(mlib_work_image *param) { VARIABLE(mlib_s16); mlib_s16 *dl = dp, *tsp, *tt; mlib_s32 cx, y0 = -1, dx3 = 3*dx, dx7 = 4*dx + dx3; tsp = sp; y = GetElemSubStruct(current, srcY) & MLIB_MASK; for (j = 0; j < height; j++) { if ((y0 >> MLIB_SHIFT) == (y >> MLIB_SHIFT)) { mlib_ImageCopy_na((void*)((mlib_u8*)dl - dst_stride), (void*)dl, 6*width); } else { mlib_s16 *dp = dl, *dend = dl + 3*width; vis_write_gsr(6); x = GetElemSubStruct(current, srcX) & MLIB_MASK; while (((mlib_addr)dp & 7) && (dp < dend)) { cx = x >> MLIB_SHIFT; tt = tsp + 2*cx + cx; dp[0] = tt[0]; dp[1] = tt[1]; dp[2] = tt[2]; x += dx; dp += 3; } x += dx3; #pragma pipeloop(0) for (; dp <= dend - 12; dp += 12) { mlib_d64 s0, s1, s2; cx = x >> MLIB_SHIFT; tt = tsp + 2*cx + cx; x -= dx; s2 = vis_faligndata(vis_ld_u16_i(tt, 4), s2); s2 = vis_faligndata(vis_ld_u16_i(tt, 2), s2); s2 = vis_faligndata(vis_ld_u16_i(tt, 0), s2); cx = x >> MLIB_SHIFT; tt = tsp + 2*cx + cx; x -= dx; s2 = vis_faligndata(vis_ld_u16_i(tt, 4), s2); s1 = vis_faligndata(vis_ld_u16_i(tt, 2), s1); s1 = vis_faligndata(vis_ld_u16_i(tt, 0), s1); cx = x >> MLIB_SHIFT; tt = tsp + 2*cx + cx; x -= dx; s1 = vis_faligndata(vis_ld_u16_i(tt, 4), s1); s1 = vis_faligndata(vis_ld_u16_i(tt, 2), s1); s0 = vis_faligndata(vis_ld_u16_i(tt, 0), s0); cx = x >> MLIB_SHIFT; tt = tsp + 2*cx + cx; x += dx7; s0 = vis_faligndata(vis_ld_u16_i(tt, 4), s0); s0 = vis_faligndata(vis_ld_u16_i(tt, 2), s0); s0 = vis_faligndata(vis_ld_u16_i(tt, 0), s0); ((mlib_d64*)dp)[0] = s0; ((mlib_d64*)dp)[1] = s1; ((mlib_d64*)dp)[2] = s2; } x -= dx3; while (dp < dend) { cx = x >> MLIB_SHIFT; tt = tsp + 2*cx + cx; dp[0] = tt[0]; dp[1] = tt[1]; dp[2] = tt[2]; x += dx; dp += 3; } } y0 = y; y += dy; dl = (void*)((mlib_u8*)dl + dst_stride); tsp = (void*)((mlib_u8*)sp + (y >> MLIB_SHIFT) * src_stride); } return MLIB_SUCCESS; } /***************************************************************/ mlib_status mlib_ImageZoom_S16_1_Nearest(mlib_work_image *param) { VARIABLE(mlib_u16); mlib_u16 *dl = dp, *tsp; mlib_s32 y0 = -1, dx3 = 3*dx, dx7 = 4*dx + dx3; tsp = sp; y = GetElemSubStruct(current, srcY) & MLIB_MASK; for (j = 0; j < height; j++) { if ((y0 >> MLIB_SHIFT) == (y >> MLIB_SHIFT)) { mlib_ImageCopy_na((void*)((mlib_u8*)dl - dst_stride), (void*)dl, 2*width); } else { mlib_u16 *dp = dl, *dend = dl + width; vis_write_gsr(6); x = GetElemSubStruct(current, srcX) & MLIB_MASK; while (((mlib_addr)dp & 7) && (dp < dend)) { *dp++ = tsp[x >> MLIB_SHIFT]; x += dx; } x += dx3; #pragma pipeloop(0) for (; dp <= dend - 4; dp += 4) { mlib_d64 s0; s0 = vis_faligndata(vis_ld_u16_i(tsp, (x >> (MLIB_SHIFT - 1)) &~ 1), s0); x -= dx; s0 = vis_faligndata(vis_ld_u16_i(tsp, (x >> (MLIB_SHIFT - 1)) &~ 1), s0); x -= dx; s0 = vis_faligndata(vis_ld_u16_i(tsp, (x >> (MLIB_SHIFT - 1)) &~ 1), s0); x -= dx; s0 = vis_faligndata(vis_ld_u16_i(tsp, (x >> (MLIB_SHIFT - 1)) &~ 1), s0); x += dx7; *(mlib_d64*)dp = s0; } x -= dx3; while (dp < dend) { *dp++ = tsp[x >> MLIB_SHIFT]; x += dx; } } y0 = y; y += dy; dl = (void*)((mlib_u8*)dl + dst_stride); tsp = (void*)((mlib_u8*)sp + (y >> MLIB_SHIFT) * src_stride); } return MLIB_SUCCESS; } /***************************************************************/ Other Java examples (source code examples)Here is a short list of links related to this Java mlib_v_ImageZoom_NN_f.c source code file: |
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