1 /*
   2  * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 
  27 /*
  28  * FUNCTION
  29  *      mlib_ImageAffine - image affine transformation with edge condition
  30  *
  31  * SYNOPSIS
  32  *      mlib_status mlib_ImageAffine(mlib_image       *dst,
  33  *                                   const mlib_image *src,
  34  *                                   const mlib_d64   *mtx,
  35  *                                   mlib_filter      filter,
  36  *                                   mlib_edge        edge)
  37  *
  38  * ARGUMENTS
  39  *      dst       Pointer to destination image
  40  *      src       Pointer to source image
  41  *      mtx       Transformation matrix, where
  42  *                  mtx[0] holds a;  mtx[1] holds b;
  43  *                  mtx[2] holds tx; mtx[3] holds c;
  44  *                  mtx[4] holds d;  mtx[5] holds ty.
  45  *      filter    Type of resampling filter.
  46  *      edge      Type of edge condition.
  47  *
  48  * DESCRIPTION
  49  *                      xd = a*xs + b*ys + tx
  50  *                      yd = c*xs + d*ys + ty
  51  *
  52  *  The upper-left corner pixel of an image is located at (0.5, 0.5).
  53  *
  54  *  The resampling filter can be one of the following:
  55  *      MLIB_NEAREST
  56  *      MLIB_BILINEAR
  57  *      MLIB_BICUBIC
  58  *      MLIB_BICUBIC2
  59  *
  60  *  The edge condition can be one of the following:
  61  *      MLIB_EDGE_DST_NO_WRITE  (default)
  62  *      MLIB_EDGE_DST_FILL_ZERO
  63  *      MLIB_EDGE_OP_NEAREST
  64  *      MLIB_EDGE_SRC_EXTEND
  65  *      MLIB_EDGE_SRC_PADDED
  66  *
  67  * RESTRICTION
  68  *      src and dst must be the same type and the same number of channels.
  69  *      They can have 1, 2, 3 or 4 channels. They can be in MLIB_BIT, MLIB_BYTE,
  70  *      MLIB_SHORT, MLIB_USHORT or MLIB_INT data type.
  71  *
  72  *      src image can not have width or height larger than 32767.
  73  */
  74 
  75 #include "mlib_ImageCheck.h"
  76 #include "mlib_ImageAffine.h"
  77 
  78 
  79 /***************************************************************/
  80 #define BUFF_SIZE  600
  81 
  82 /***************************************************************/
  83 const type_affine_fun mlib_AffineFunArr_nn[] = {
  84   mlib_ImageAffine_u8_1ch_nn,  mlib_ImageAffine_u8_2ch_nn,
  85   mlib_ImageAffine_u8_3ch_nn,  mlib_ImageAffine_u8_4ch_nn,
  86   mlib_ImageAffine_s16_1ch_nn, mlib_ImageAffine_s16_2ch_nn,
  87   mlib_ImageAffine_s16_3ch_nn, mlib_ImageAffine_s16_4ch_nn,
  88   mlib_ImageAffine_s32_1ch_nn, mlib_ImageAffine_s32_2ch_nn,
  89   mlib_ImageAffine_s32_3ch_nn, mlib_ImageAffine_s32_4ch_nn,
  90   mlib_ImageAffine_d64_1ch_nn, mlib_ImageAffine_d64_2ch_nn,
  91   mlib_ImageAffine_d64_3ch_nn, mlib_ImageAffine_d64_4ch_nn,
  92 };
  93 
  94 /***************************************************************/
  95 const type_affine_fun mlib_AffineFunArr_bl[] = {
  96   mlib_ImageAffine_u8_1ch_bl,  mlib_ImageAffine_u8_2ch_bl,
  97   mlib_ImageAffine_u8_3ch_bl,  mlib_ImageAffine_u8_4ch_bl,
  98   mlib_ImageAffine_s16_1ch_bl, mlib_ImageAffine_s16_2ch_bl,
  99   mlib_ImageAffine_s16_3ch_bl, mlib_ImageAffine_s16_4ch_bl,
 100   mlib_ImageAffine_s32_1ch_bl, mlib_ImageAffine_s32_2ch_bl,
 101   mlib_ImageAffine_s32_3ch_bl, mlib_ImageAffine_s32_4ch_bl,
 102   mlib_ImageAffine_u16_1ch_bl, mlib_ImageAffine_u16_2ch_bl,
 103   mlib_ImageAffine_u16_3ch_bl, mlib_ImageAffine_u16_4ch_bl,
 104   mlib_ImageAffine_f32_1ch_bl, mlib_ImageAffine_f32_2ch_bl,
 105   mlib_ImageAffine_f32_3ch_bl, mlib_ImageAffine_f32_4ch_bl,
 106   mlib_ImageAffine_d64_1ch_bl, mlib_ImageAffine_d64_2ch_bl,
 107   mlib_ImageAffine_d64_3ch_bl, mlib_ImageAffine_d64_4ch_bl
 108 };
 109 
 110 /***************************************************************/
 111 const type_affine_fun mlib_AffineFunArr_bc[] = {
 112   mlib_ImageAffine_u8_1ch_bc,  mlib_ImageAffine_u8_2ch_bc,
 113   mlib_ImageAffine_u8_3ch_bc,  mlib_ImageAffine_u8_4ch_bc,
 114   mlib_ImageAffine_s16_1ch_bc, mlib_ImageAffine_s16_2ch_bc,
 115   mlib_ImageAffine_s16_3ch_bc, mlib_ImageAffine_s16_4ch_bc,
 116   mlib_ImageAffine_s32_1ch_bc, mlib_ImageAffine_s32_2ch_bc,
 117   mlib_ImageAffine_s32_3ch_bc, mlib_ImageAffine_s32_4ch_bc,
 118   mlib_ImageAffine_u16_1ch_bc, mlib_ImageAffine_u16_2ch_bc,
 119   mlib_ImageAffine_u16_3ch_bc, mlib_ImageAffine_u16_4ch_bc,
 120   mlib_ImageAffine_f32_1ch_bc, mlib_ImageAffine_f32_2ch_bc,
 121   mlib_ImageAffine_f32_3ch_bc, mlib_ImageAffine_f32_4ch_bc,
 122   mlib_ImageAffine_d64_1ch_bc, mlib_ImageAffine_d64_2ch_bc,
 123   mlib_ImageAffine_d64_3ch_bc, mlib_ImageAffine_d64_4ch_bc
 124 };
 125 
 126 /***************************************************************/
 127 #ifdef i386 /* do not perform the coping by mlib_d64 data type for x86 */
 128 #define MAX_T_IND  2
 129 #else
 130 #define MAX_T_IND  3
 131 #endif /* i386 ( do not perform the coping by mlib_d64 data type for x86 ) */
 132 
 133 /***************************************************************/
 134 mlib_status mlib_ImageAffine_alltypes(mlib_image       *dst,
 135                                       const mlib_image *src,
 136                                       const mlib_d64   *mtx,
 137                                       mlib_filter      filter,
 138                                       mlib_edge        edge)
 139 {
 140   mlib_affine_param param[1];
 141   mlib_status res;
 142   mlib_type type;
 143   mlib_s32 nchan, t_ind, kw, kw1;
 144   mlib_addr align;
 145   mlib_d64 buff_lcl[BUFF_SIZE / 8];
 146   mlib_u8 **lineAddr = NULL;
 147 
 148   /* check for obvious errors */
 149   MLIB_IMAGE_TYPE_EQUAL(src, dst);
 150   MLIB_IMAGE_CHAN_EQUAL(src, dst);
 151 
 152   type = mlib_ImageGetType(dst);
 153   nchan = mlib_ImageGetChannels(dst);
 154 
 155   switch (filter) {
 156     case MLIB_NEAREST:
 157       kw = 1;
 158       kw1 = 0;
 159       break;
 160 
 161     case MLIB_BILINEAR:
 162       kw = 2;
 163       kw1 = 0;
 164       break;
 165 
 166     case MLIB_BICUBIC:
 167     case MLIB_BICUBIC2:
 168       kw = 4;
 169       kw1 = 1;
 170       break;
 171 
 172     default:
 173       return MLIB_FAILURE;
 174   }
 175 
 176   STORE_PARAM(param, lineAddr);
 177   STORE_PARAM(param, filter);
 178 
 179   res = mlib_AffineEdges(param, dst, src, buff_lcl, BUFF_SIZE,
 180                          kw, kw, kw1, kw1, edge, mtx, MLIB_SHIFT, MLIB_SHIFT);
 181 
 182   if (res != MLIB_SUCCESS)
 183     return res;
 184 
 185   lineAddr = param->lineAddr;
 186 
 187   if (type == MLIB_BYTE)
 188     t_ind = 0;
 189   else if (type == MLIB_SHORT)
 190     t_ind = 1;
 191   else if (type == MLIB_INT)
 192     t_ind = 2;
 193   else if (type == MLIB_USHORT)
 194     t_ind = 3;
 195   else if (type == MLIB_FLOAT)
 196     t_ind = 4;
 197   else if (type == MLIB_DOUBLE)
 198     t_ind = 5;
 199   else
 200     return MLIB_FAILURE; /* unknown image type */
 201 
 202   if (type == MLIB_BIT) {
 203     mlib_s32 s_bitoff = mlib_ImageGetBitOffset(src);
 204     mlib_s32 d_bitoff = mlib_ImageGetBitOffset(dst);
 205 
 206     if (nchan != 1 || filter != MLIB_NEAREST)
 207       return MLIB_FAILURE;
 208     mlib_ImageAffine_bit_1ch_nn(param, s_bitoff, d_bitoff);
 209   }
 210   else {
 211     switch (filter) {
 212       case MLIB_NEAREST:
 213 
 214         if (t_ind >= 3)
 215           t_ind -= 2;                                      /* correct types USHORT, FLOAT, DOUBLE; new values: 1, 2, 3 */
 216 
 217         /* two channels as one channel of next type */
 218         align = (mlib_addr) (param->dstData) | (mlib_addr) lineAddr[0];
 219         align |= param->dstYStride | param->srcYStride;
 220         while (((nchan | (align >> t_ind)) & 1) == 0 && t_ind < MAX_T_IND) {
 221           nchan >>= 1;
 222           t_ind++;
 223         }
 224 
 225         res = mlib_AffineFunArr_nn[4 * t_ind + (nchan - 1)] (param);
 226         break;
 227 
 228       case MLIB_BILINEAR:
 229 
 230         res = mlib_AffineFunArr_bl[4 * t_ind + (nchan - 1)] (param);
 231         break;
 232 
 233       case MLIB_BICUBIC:
 234       case MLIB_BICUBIC2:
 235 
 236         res = mlib_AffineFunArr_bc[4 * t_ind + (nchan - 1)] (param);
 237         break;
 238     }
 239 
 240     if (res != MLIB_SUCCESS) {
 241       if (param->buff_malloc != NULL)
 242         mlib_free(param->buff_malloc);
 243       return res;
 244     }
 245   }
 246 
 247   if (edge == MLIB_EDGE_SRC_PADDED)
 248     edge = MLIB_EDGE_DST_NO_WRITE;
 249 
 250   if (filter != MLIB_NEAREST && edge != MLIB_EDGE_DST_NO_WRITE) {
 251     mlib_affine_param param_e[1];
 252     mlib_d64 buff_lcl1[BUFF_SIZE / 8];
 253 
 254     STORE_PARAM(param_e, lineAddr);
 255     STORE_PARAM(param_e, filter);
 256 
 257     res = mlib_AffineEdges(param_e, dst, src, buff_lcl1, BUFF_SIZE,
 258                            kw, kw, kw1, kw1, -1, mtx, MLIB_SHIFT, MLIB_SHIFT);
 259 
 260     if (res != MLIB_SUCCESS) {
 261       if (param->buff_malloc != NULL)
 262         mlib_free(param->buff_malloc);
 263       return res;
 264     }
 265 
 266     switch (edge) {
 267       case MLIB_EDGE_DST_FILL_ZERO:
 268         mlib_ImageAffineEdgeZero(param, param_e);
 269         break;
 270 
 271       case MLIB_EDGE_OP_NEAREST:
 272         mlib_ImageAffineEdgeNearest(param, param_e);
 273         break;
 274 
 275       case MLIB_EDGE_SRC_EXTEND:
 276 
 277         if (filter == MLIB_BILINEAR) {
 278           res = mlib_ImageAffineEdgeExtend_BL(param, param_e);
 279         }
 280         else {
 281           res = mlib_ImageAffineEdgeExtend_BC(param, param_e);
 282         }
 283 
 284         break;
 285 
 286     default:
 287       /* nothing to do for other edge types. */
 288       break;
 289     }
 290 
 291     if (param_e->buff_malloc != NULL)
 292       mlib_free(param_e->buff_malloc);
 293   }
 294 
 295   if (param->buff_malloc != NULL)
 296     mlib_free(param->buff_malloc);
 297 
 298   return res;
 299 }
 300 
 301 /***************************************************************/
 302 JNIEXPORT mlib_status JNICALL mlib_ImageAffine(mlib_image       *dst,

 303                              const mlib_image *src,
 304                              const mlib_d64   *mtx,
 305                              mlib_filter      filter,
 306                              mlib_edge        edge)
 307 {
 308   mlib_type type;
 309 
 310   MLIB_IMAGE_CHECK(src);
 311   MLIB_IMAGE_CHECK(dst);
 312 
 313   type = mlib_ImageGetType(dst);
 314 
 315   if (type != MLIB_BIT && type != MLIB_BYTE &&
 316       type != MLIB_SHORT && type != MLIB_USHORT && type != MLIB_INT) {
 317     return MLIB_FAILURE;
 318   }
 319 
 320   return mlib_ImageAffine_alltypes(dst, src, mtx, filter, edge);
 321 }
 322 
 323 /***************************************************************/
--- EOF ---