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src/java.desktop/share/native/libawt/awt/image/dither.h

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   1 /*
   2  * Copyright (c) 2001, 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 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <math.h>
  29 #include <string.h>
  30 
  31 #include "colordata.h"

  32 
  33 #ifdef __cplusplus
  34 extern "C" {
  35 #endif
  36 
  37 extern sgn_ordered_dither_array std_img_oda_red;
  38 extern sgn_ordered_dither_array std_img_oda_green;
  39 extern sgn_ordered_dither_array std_img_oda_blue;
  40 extern int std_odas_computed;
  41 
  42 void make_dither_arrays(int cmapsize, ColorData *cData);
  43 void initInverseGrayLut(int* prgb, int rgbsize, ColorData* cData);



  44 
  45 /*
  46  * state info needed for breadth-first recursion of color cube from
  47  * initial palette entries within the cube
  48  */
  49 
  50 typedef struct {
  51     unsigned int depth;
  52     unsigned int maxDepth;
  53 
  54     unsigned char *usedFlags;
  55     unsigned int  activeEntries;
  56     unsigned short *rgb;
  57     unsigned char *indices;
  58     unsigned char *iLUT;
  59 } CubeStateInfo;
  60 
  61 #define INSERTNEW(state, rgb, index) do {                           \
  62         if (!state.usedFlags[rgb]) {                                \
  63             state.usedFlags[rgb] = 1;                               \


   1 /*
   2  * Copyright (c) 2001, 2018, 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 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <math.h>
  29 #include <string.h>
  30 
  31 #include "colordata.h"
  32 #include "jni.h"
  33 
  34 #ifdef __cplusplus
  35 extern "C" {
  36 #endif
  37 
  38 JNIEXPORT extern sgn_ordered_dither_array std_img_oda_red;
  39 JNIEXPORT extern sgn_ordered_dither_array std_img_oda_green;
  40 JNIEXPORT extern sgn_ordered_dither_array std_img_oda_blue;
  41 JNIEXPORT extern int std_odas_computed;
  42 
  43 JNIEXPORT void JNICALL
  44 make_dither_arrays(int cmapsize, ColorData *cData);
  45 
  46 JNIEXPORT void JNICALL
  47 initInverseGrayLut(int* prgb, int rgbsize, ColorData* cData);
  48 
  49 /*
  50  * state info needed for breadth-first recursion of color cube from
  51  * initial palette entries within the cube
  52  */
  53 
  54 typedef struct {
  55     unsigned int depth;
  56     unsigned int maxDepth;
  57 
  58     unsigned char *usedFlags;
  59     unsigned int  activeEntries;
  60     unsigned short *rgb;
  61     unsigned char *indices;
  62     unsigned char *iLUT;
  63 } CubeStateInfo;
  64 
  65 #define INSERTNEW(state, rgb, index) do {                           \
  66         if (!state.usedFlags[rgb]) {                                \
  67             state.usedFlags[rgb] = 1;                               \


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