1 |
frodo |
86 |
/* |
2 |
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generate_image.c - Part of psiconv, a PSION 5 file formats converter |
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Copyright (c) 1999, 2000 Frodo Looijaard <frodol@dds.nl> |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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10 |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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20 |
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#include "config.h" |
21 |
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#include "compat.h" |
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23 |
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#include "generate_routines.h" |
24 |
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#include "error.h" |
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26 |
frodo |
142 |
#ifdef DMALLOC |
27 |
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#include <dmalloc.h> |
28 |
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#endif |
29 |
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|
30 |
frodo |
168 |
typedef psiconv_list psiconv_pixel_bytes; /* psiconv_u8 */ |
31 |
frodo |
142 |
|
32 |
frodo |
168 |
typedef psiconv_list psiconv_pixel_ints; /* of psiconv_u32 */ |
33 |
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|
34 |
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typedef struct psiconv_pixel_float_s |
35 |
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{ |
36 |
frodo |
170 |
psiconv_u32 length; |
37 |
frodo |
168 |
float *red; |
38 |
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float *green; |
39 |
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float *blue; |
40 |
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} psiconv_pixel_floats_t; |
41 |
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|
42 |
frodo |
170 |
static int psiconv_collect_pixel_data(psiconv_pixel_ints *pixels, |
43 |
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int xsize,int ysize, |
44 |
frodo |
168 |
const psiconv_pixel_floats_t data, |
45 |
frodo |
170 |
int colordepth, |
46 |
frodo |
168 |
const psiconv_pixel_floats_t palet); |
47 |
frodo |
170 |
static int psiconv_pixel_data_to_bytes(const psiconv_config config, |
48 |
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psiconv_pixel_bytes *bytes, int xsize, |
49 |
frodo |
168 |
int ysize, const psiconv_pixel_ints pixels, |
50 |
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int colordepth); |
51 |
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|
52 |
frodo |
170 |
#define PALET_GREY_2_LEN 4 |
53 |
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float palet_grey_2_rgb[PALET_GREY_2_LEN] = {0.0/3, 1.0/3, 2.0/3, 3.0/3}; |
54 |
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#define PALET_GREY_4_LEN 16 |
55 |
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float palet_grey_4_rgb[PALET_GREY_4_LEN] = |
56 |
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{ 0.0/15, 1.0/15, 2.0/15, 3.0/15, |
57 |
frodo |
168 |
4.0/15, 5.0/15, 6.0/15, 7.0/15, |
58 |
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8.0/15, 9.0/15, 10.0/15, 11.0/15, |
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12.0/15, 13.0/15, 14.0/15, 15.0/15}; |
60 |
frodo |
170 |
#define PALET_NONE_LEN 0 |
61 |
frodo |
168 |
|
62 |
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psiconv_pixel_floats_t palet_grey_2 = |
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{ |
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frodo |
170 |
PALET_GREY_2_LEN, |
65 |
frodo |
168 |
(float *) palet_grey_2_rgb, |
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(float *) palet_grey_2_rgb, |
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(float *) palet_grey_2_rgb |
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}; |
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psiconv_pixel_floats_t palet_grey_4 = |
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{ |
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frodo |
170 |
PALET_GREY_4_LEN, |
73 |
frodo |
168 |
(float *) palet_grey_4_rgb, |
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(float *) palet_grey_4_rgb, |
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(float *) palet_grey_4_rgb |
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}; |
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|
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frodo |
170 |
psiconv_pixel_floats_t palet_none = |
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{ |
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PALET_NONE_LEN, |
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NULL, |
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NULL, |
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NULL |
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}; |
85 |
frodo |
168 |
|
86 |
frodo |
170 |
|
87 |
frodo |
168 |
int psiconv_write_paint_data_section(const psiconv_config config, |
88 |
frodo |
170 |
psiconv_buffer buf, |
89 |
frodo |
168 |
const psiconv_paint_data_section value) |
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{ |
91 |
frodo |
170 |
int res,colordepth,i; |
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psiconv_pixel_ints ints; |
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psiconv_pixel_floats_t floats,palet; |
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psiconv_list bytes; |
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psiconv_u8 *byteptr; |
96 |
frodo |
168 |
|
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if (!value) { |
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psiconv_warn(config,0,psiconv_buffer_length(buf),"Null paint data section"); |
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res = -PSICONV_E_GENERATE; |
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goto ERROR1; |
101 |
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} |
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|
103 |
frodo |
170 |
floats.red = value->red; |
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floats.green = value->green; |
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floats.blue = value->blue; |
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floats.length = value->xsize * value->ysize; |
107 |
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|
108 |
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switch (config->colordepth) { |
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default: |
110 |
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case 2: palet = (config->color?palet_none:palet_grey_2); |
111 |
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break; |
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case 4: palet = (config->color?palet_none:palet_grey_4); |
113 |
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break; |
114 |
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} |
115 |
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116 |
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if ((res = psiconv_collect_pixel_data(&ints,value->xsize, |
117 |
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value->ysize,floats, |
118 |
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config->colordepth,palet))) |
119 |
frodo |
168 |
goto ERROR1; |
120 |
frodo |
170 |
|
121 |
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if ((res = psiconv_pixel_data_to_bytes(config,&bytes,value->xsize,value->ysize, |
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ints,config->colordepth))) |
123 |
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goto ERROR2; |
124 |
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125 |
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if ((res = psiconv_write_u32(config,buf,0x28+psiconv_list_length(bytes)))) |
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goto ERROR3; |
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if ((res = psiconv_write_u32(config,buf,0x28))) |
128 |
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goto ERROR3; |
129 |
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if ((res = psiconv_write_u32(config,buf,value->xsize))) |
130 |
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goto ERROR3; |
131 |
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if ((res = psiconv_write_u32(config,buf,value->ysize))) |
132 |
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goto ERROR3; |
133 |
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if ((res = psiconv_write_length(config,buf,value->pic_xsize))) |
134 |
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goto ERROR3; |
135 |
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if ((res = psiconv_write_length(config,buf,value->pic_ysize))) |
136 |
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goto ERROR3; |
137 |
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colordepth = config->colordepth; |
138 |
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if ((colordepth != 2) && colordepth != 4) |
139 |
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colordepth = 2; |
140 |
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if ((res = psiconv_write_u32(config,buf,colordepth))) |
141 |
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goto ERROR3; |
142 |
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if ((res = psiconv_write_u32(config,buf,(config->color?1:0)))) |
143 |
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goto ERROR3; |
144 |
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if ((res = psiconv_write_u32(config,buf,0))) |
145 |
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goto ERROR3; |
146 |
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/* Encoding: no RLE for now */ |
147 |
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if ((res = psiconv_write_u32(config,buf,0))) |
148 |
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goto ERROR3; |
149 |
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for (i = 0; i < psiconv_list_length(bytes); i++) { |
150 |
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if (!(byteptr = psiconv_list_get(bytes,i))) |
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goto ERROR3; |
152 |
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if ((res = psiconv_write_u8(config,buf,*byteptr))) |
153 |
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goto ERROR3; |
154 |
frodo |
168 |
} |
155 |
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156 |
frodo |
170 |
ERROR3: |
157 |
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psiconv_list_free(bytes); |
158 |
frodo |
168 |
ERROR2: |
159 |
frodo |
170 |
psiconv_list_free(ints); |
160 |
frodo |
168 |
ERROR1: |
161 |
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return res; |
162 |
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} |
163 |
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164 |
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/* Translate the floating point RGB information into pixel values. |
165 |
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The palet is optional; without it, we just use the |
166 |
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colordepth. With a large palet this is not very fast, but it will do for |
167 |
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now. For greyscale pictures, just use the palet. */ |
168 |
frodo |
170 |
int psiconv_collect_pixel_data(psiconv_pixel_ints *pixels,int xsize,int ysize, |
169 |
frodo |
168 |
const psiconv_pixel_floats_t data, |
170 |
frodo |
170 |
int colordepth, |
171 |
frodo |
168 |
const psiconv_pixel_floats_t palet) |
172 |
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{ |
173 |
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int res,x,y,i; |
174 |
frodo |
170 |
psiconv_u32 index,pixel; |
175 |
frodo |
168 |
float p_red,p_green,p_blue,mult,dist,new_dist; |
176 |
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|
177 |
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if (!(*pixels = psiconv_list_new(sizeof(psiconv_u32)))) { |
178 |
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res = -PSICONV_E_NOMEM; |
179 |
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goto ERROR1; |
180 |
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} |
181 |
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182 |
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mult = 1 << colordepth; |
183 |
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for (y = 0; y < ysize; y++) { |
184 |
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for (x = 0; x < xsize; x++) { |
185 |
frodo |
170 |
index = y*xsize+x; |
186 |
frodo |
168 |
p_red = data.red[index]; |
187 |
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p_green = data.green[index]; |
188 |
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p_blue = data.blue[index]; |
189 |
frodo |
170 |
if (!palet.length) { |
190 |
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pixel = (((psiconv_u32) (p_red*mult+0.5)) << (2*colordepth)) + |
191 |
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(((psiconv_u32) (p_green*mult+0.5)) << colordepth) + |
192 |
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((psiconv_u32) (p_blue*mult+0.5)); |
193 |
frodo |
168 |
} else { |
194 |
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dist = 4; /* Max distance is 3, so this is safe */ |
195 |
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pixel = -1; |
196 |
frodo |
170 |
for (i = 0; i < palet.length; i++) { |
197 |
frodo |
168 |
new_dist = (p_red - palet.red[i]) * (p_red - palet.red[i]) + |
198 |
|
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(p_green - palet.green[i]) * (p_green - palet.green[i]) + |
199 |
|
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(p_blue - palet.blue[i]) * (p_blue - palet.blue[i]); |
200 |
|
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if (new_dist < dist) { |
201 |
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pixel = i; |
202 |
|
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dist = new_dist; |
203 |
|
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} |
204 |
|
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} |
205 |
|
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} |
206 |
|
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if ((res = psiconv_list_add(*pixels,&pixel))) |
207 |
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goto ERROR2; |
208 |
|
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} |
209 |
|
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} |
210 |
|
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return 0; |
211 |
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|
212 |
|
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ERROR2: |
213 |
|
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psiconv_list_free(*pixels); |
214 |
|
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ERROR1: |
215 |
|
|
return res; |
216 |
|
|
} |
217 |
|
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|
218 |
frodo |
170 |
int psiconv_pixel_data_to_bytes(const psiconv_config config, |
219 |
|
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psiconv_pixel_bytes *bytes, int xsize, |
220 |
frodo |
168 |
int ysize, const psiconv_pixel_ints pixels, |
221 |
|
|
int colordepth) |
222 |
|
|
{ |
223 |
|
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int res; |
224 |
|
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int x,y; |
225 |
|
|
|
226 |
|
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psiconv_u32 inputdata; |
227 |
|
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psiconv_u8 outputbyte; |
228 |
|
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psiconv_u32 *pixelptr; |
229 |
frodo |
170 |
int inputbitsleft,outputbitnr,bitsfit,outputbytenr; |
230 |
frodo |
168 |
|
231 |
|
|
|
232 |
|
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if (!bytes) { |
233 |
|
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psiconv_warn(config,0,0,"NULL pixel data"); |
234 |
|
|
res = -PSICONV_E_GENERATE; |
235 |
|
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goto ERROR1; |
236 |
|
|
} |
237 |
|
|
if (!pixels) { |
238 |
|
|
psiconv_warn(config,0,0,"NULL pixel data"); |
239 |
|
|
res = -PSICONV_E_GENERATE; |
240 |
|
|
goto ERROR1; |
241 |
|
|
} |
242 |
|
|
if (psiconv_list_length(pixels) != xsize * ysize) { |
243 |
|
|
psiconv_warn(config,0,0,"Pixel number is not correct"); |
244 |
|
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res = -PSICONV_E_GENERATE; |
245 |
|
|
goto ERROR1; |
246 |
|
|
} |
247 |
|
|
|
248 |
|
|
if (!(*bytes = psiconv_list_new(sizeof(psiconv_u8)))) { |
249 |
|
|
res = -PSICONV_E_NOMEM; |
250 |
|
|
goto ERROR1; |
251 |
|
|
} |
252 |
|
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|
253 |
|
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|
254 |
|
|
outputbitnr = 0; |
255 |
|
|
outputbyte = 0; |
256 |
|
|
for (y = 0; y < ysize; y++) { |
257 |
frodo |
170 |
outputbytenr = 0; |
258 |
frodo |
168 |
for (x = 0; x < xsize; x++) { |
259 |
|
|
if (!(pixelptr = psiconv_list_get(pixels,y*xsize+x))) { |
260 |
|
|
psiconv_warn(config,0,0,"Massive internal corruption"); |
261 |
|
|
res = -PSICONV_E_NOMEM; |
262 |
|
|
goto ERROR2; |
263 |
|
|
} |
264 |
|
|
inputbitsleft = colordepth; |
265 |
|
|
inputdata = *pixelptr; |
266 |
|
|
while (inputbitsleft) { |
267 |
|
|
bitsfit = (inputbitsleft+outputbitnr<=8?inputbitsleft:8-outputbitnr); |
268 |
|
|
outputbyte |= (inputdata & ((1 << bitsfit) - 1)) << outputbitnr; |
269 |
|
|
inputdata = inputdata >> bitsfit; |
270 |
|
|
inputbitsleft -= bitsfit; |
271 |
|
|
outputbitnr += bitsfit; |
272 |
|
|
if (outputbitnr == 8) { |
273 |
|
|
if ((res = psiconv_list_add(*bytes,&outputbyte))) |
274 |
|
|
goto ERROR2; |
275 |
|
|
outputbitnr = 0; |
276 |
|
|
outputbyte = 0; |
277 |
frodo |
170 |
outputbytenr ++; |
278 |
frodo |
168 |
} |
279 |
|
|
} |
280 |
|
|
} |
281 |
frodo |
170 |
/* Always end lines on a long border */ |
282 |
frodo |
168 |
if (outputbitnr != 0) { |
283 |
|
|
if ((res = psiconv_list_add(*bytes,&outputbyte))) |
284 |
|
|
goto ERROR2; |
285 |
|
|
outputbitnr = 0; |
286 |
|
|
outputbyte = 0; |
287 |
frodo |
170 |
outputbytenr ++; |
288 |
frodo |
168 |
} |
289 |
frodo |
170 |
|
290 |
|
|
while (outputbytenr % 0x04) { |
291 |
|
|
if ((res = psiconv_list_add(*bytes,&outputbyte))) |
292 |
|
|
goto ERROR2; |
293 |
|
|
outputbytenr ++; |
294 |
|
|
} |
295 |
frodo |
168 |
} |
296 |
|
|
|
297 |
|
|
return 0; |
298 |
|
|
|
299 |
|
|
ERROR2: |
300 |
|
|
psiconv_list_free(*bytes); |
301 |
|
|
ERROR1: |
302 |
|
|
return res; |
303 |
|
|
} |
304 |
frodo |
170 |
|
305 |
|
|
int psiconv_write_sketch_section(const psiconv_config config, |
306 |
|
|
psiconv_buffer buf, |
307 |
frodo |
171 |
const psiconv_sketch_section value) |
308 |
frodo |
170 |
{ |
309 |
|
|
int res; |
310 |
|
|
|
311 |
|
|
if (!value) { |
312 |
|
|
psiconv_warn(config,0,0,"NULL sketch section"); |
313 |
|
|
res = -PSICONV_E_GENERATE; |
314 |
|
|
goto ERROR1; |
315 |
|
|
} |
316 |
|
|
|
317 |
|
|
if ((res = psiconv_write_u16(config,buf,value->displayed_xsize))) |
318 |
|
|
goto ERROR1; |
319 |
|
|
if ((res = psiconv_write_u16(config,buf,value->displayed_ysize))) |
320 |
|
|
goto ERROR1; |
321 |
|
|
if ((res = psiconv_write_u16(config,buf,value->picture_data_x_offset))) |
322 |
|
|
goto ERROR1; |
323 |
|
|
if ((res = psiconv_write_u16(config,buf,value->picture_data_y_offset))) |
324 |
|
|
goto ERROR1; |
325 |
|
|
if ((res = psiconv_write_u16(config,buf,value->displayed_size_x_offset))) |
326 |
|
|
goto ERROR1; |
327 |
|
|
if ((res = psiconv_write_u16(config,buf,value->displayed_size_y_offset))) |
328 |
|
|
goto ERROR1; |
329 |
|
|
if ((res = psiconv_write_u16(config,buf,value->form_xsize))) |
330 |
|
|
goto ERROR1; |
331 |
|
|
if ((res = psiconv_write_u16(config,buf,value->form_ysize))) |
332 |
|
|
goto ERROR1; |
333 |
|
|
if ((res = psiconv_write_u16(config,buf,0x0000))) |
334 |
|
|
goto ERROR1; |
335 |
|
|
if ((res = psiconv_write_paint_data_section(config,buf,value->picture))) |
336 |
|
|
goto ERROR1; |
337 |
|
|
if ((res = psiconv_write_u16(config,buf,value->magnification_x * 0x03e8))) |
338 |
|
|
goto ERROR1; |
339 |
|
|
if ((res = psiconv_write_u16(config,buf,value->magnification_y * 0x03e8))) |
340 |
|
|
goto ERROR1; |
341 |
|
|
if ((res = psiconv_write_u32(config,buf,value->cut_left * 0x0c * |
342 |
|
|
value->displayed_xsize))) |
343 |
|
|
goto ERROR1; |
344 |
|
|
if ((res = psiconv_write_u32(config,buf,value->cut_right * 0x0c * |
345 |
|
|
value->displayed_xsize))) |
346 |
|
|
goto ERROR1; |
347 |
|
|
if ((res = psiconv_write_u32(config,buf,value->cut_top * 0x0c * |
348 |
|
|
value->displayed_ysize))) |
349 |
|
|
goto ERROR1; |
350 |
|
|
if ((res = psiconv_write_u32(config,buf,value->cut_bottom * 0x0c * |
351 |
|
|
value->displayed_ysize))) |
352 |
|
|
goto ERROR1; |
353 |
|
|
|
354 |
|
|
ERROR1: |
355 |
|
|
return res; |
356 |
|
|
} |
357 |
frodo |
171 |
|
358 |
|
|
int psiconv_write_jumptable_section(const psiconv_config config, |
359 |
|
|
psiconv_buffer buf, |
360 |
|
|
const psiconv_jumptable_section value) |
361 |
|
|
{ |
362 |
|
|
int res,i; |
363 |
|
|
psiconv_u32 *offset_ptr; |
364 |
|
|
|
365 |
|
|
|
366 |
|
|
if (!value) { |
367 |
|
|
psiconv_warn(config,0,psiconv_buffer_length(buf), |
368 |
|
|
"NULL Jumptable Section"); |
369 |
|
|
res = -PSICONV_E_GENERATE; |
370 |
|
|
goto ERROR; |
371 |
|
|
} |
372 |
|
|
if ((res = psiconv_write_u32(config,buf,psiconv_list_length(value)))) |
373 |
|
|
goto ERROR; |
374 |
|
|
for (i = 0; i < psiconv_list_length(value); i++) { |
375 |
|
|
if (!(offset_ptr = psiconv_list_get(value,i))) { |
376 |
|
|
psiconv_warn(config,0,psiconv_buffer_length(buf), |
377 |
|
|
"Massive memory corruption"); |
378 |
|
|
res = -PSICONV_E_NOMEM; |
379 |
|
|
goto ERROR; |
380 |
|
|
} |
381 |
|
|
if ((res = psiconv_write_offset(config,buf,*offset_ptr))) |
382 |
|
|
goto ERROR; |
383 |
|
|
} |
384 |
|
|
|
385 |
|
|
ERROR: |
386 |
|
|
return res; |
387 |
|
|
} |