| 1 |
/* |
| 2 |
|
| 3 |
generate_image.c - Part of psiconv, a PSION 5 file formats converter |
| 4 |
Copyright (c) 1999, 2000 Frodo Looijaard <frodol@dds.nl> |
| 5 |
|
| 6 |
This program is free software; you can redistribute it and/or modify |
| 7 |
it under the terms of the GNU General Public License as published by |
| 8 |
the Free Software Foundation; either version 2 of the License, or |
| 9 |
(at your option) any later version. |
| 10 |
|
| 11 |
This program is distributed in the hope that it will be useful, |
| 12 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
GNU General Public License for more details. |
| 15 |
|
| 16 |
You should have received a copy of the GNU General Public License |
| 17 |
along with this program; if not, write to the Free Software |
| 18 |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 19 |
*/ |
| 20 |
|
| 21 |
#include "config.h" |
| 22 |
#include "compat.h" |
| 23 |
|
| 24 |
#include "generate_routines.h" |
| 25 |
#include "error.h" |
| 26 |
|
| 27 |
#ifdef DMALLOC |
| 28 |
#include <dmalloc.h> |
| 29 |
#endif |
| 30 |
|
| 31 |
typedef psiconv_list psiconv_pixel_bytes; /* psiconv_u8 */ |
| 32 |
|
| 33 |
typedef psiconv_list psiconv_pixel_ints; /* of psiconv_u32 */ |
| 34 |
|
| 35 |
typedef struct psiconv_pixel_float_s |
| 36 |
{ |
| 37 |
psiconv_u32 length; |
| 38 |
float *red; |
| 39 |
float *green; |
| 40 |
float *blue; |
| 41 |
} psiconv_pixel_floats_t; |
| 42 |
|
| 43 |
static int psiconv_collect_pixel_data(psiconv_pixel_ints *pixels, |
| 44 |
int xsize,int ysize, |
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const psiconv_pixel_floats_t data, |
| 46 |
int colordepth, |
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const psiconv_pixel_floats_t palet); |
| 48 |
static int psiconv_pixel_data_to_bytes(const psiconv_config config, |
| 49 |
psiconv_pixel_bytes *bytes, int xsize, |
| 50 |
int ysize, const psiconv_pixel_ints pixels, |
| 51 |
int colordepth); |
| 52 |
|
| 53 |
#define PALET_GREY_2_LEN 4 |
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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}; |
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#define PALET_GREY_4_LEN 16 |
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float palet_grey_4_rgb[PALET_GREY_4_LEN] = |
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{ 0.0/15, 1.0/15, 2.0/15, 3.0/15, |
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4.0/15, 5.0/15, 6.0/15, 7.0/15, |
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8.0/15, 9.0/15, 10.0/15, 11.0/15, |
| 60 |
12.0/15, 13.0/15, 14.0/15, 15.0/15}; |
| 61 |
#define PALET_NONE_LEN 0 |
| 62 |
|
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psiconv_pixel_floats_t palet_grey_2 = |
| 64 |
{ |
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PALET_GREY_2_LEN, |
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(float *) palet_grey_2_rgb, |
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(float *) palet_grey_2_rgb, |
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(float *) palet_grey_2_rgb |
| 69 |
}; |
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|
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psiconv_pixel_floats_t palet_grey_4 = |
| 72 |
{ |
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PALET_GREY_4_LEN, |
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(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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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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}; |
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|
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|
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int psiconv_write_paint_data_section(const psiconv_config config, |
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psiconv_buffer buf, |
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const psiconv_paint_data_section value, |
| 91 |
int is_clipart) |
| 92 |
{ |
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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; |
| 98 |
|
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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; |
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} |
| 104 |
|
| 105 |
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; |
| 109 |
|
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switch (config->colordepth) { |
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default: |
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case 2: palet = (config->color?palet_none:palet_grey_2); |
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break; |
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case 4: palet = (config->color?palet_none:palet_grey_4); |
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break; |
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} |
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|
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if ((res = psiconv_collect_pixel_data(&ints,value->xsize, |
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value->ysize,floats, |
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config->colordepth,palet))) |
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goto ERROR1; |
| 122 |
|
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if ((res = psiconv_pixel_data_to_bytes(config,&bytes,value->xsize,value->ysize, |
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ints,config->colordepth))) |
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goto ERROR2; |
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|
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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))) |
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goto ERROR3; |
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if ((res = psiconv_write_u32(config,buf,value->xsize))) |
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goto ERROR3; |
| 133 |
if ((res = psiconv_write_u32(config,buf,value->ysize))) |
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goto ERROR3; |
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if ((res = psiconv_write_length(config,buf,value->pic_xsize))) |
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goto ERROR3; |
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if ((res = psiconv_write_length(config,buf,value->pic_ysize))) |
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goto ERROR3; |
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colordepth = config->colordepth; |
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if ((colordepth != 2) && colordepth != 4) |
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colordepth = 2; |
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if ((res = psiconv_write_u32(config,buf,colordepth))) |
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goto ERROR3; |
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if ((res = psiconv_write_u32(config,buf,(config->color?1:0)))) |
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goto ERROR3; |
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if ((res = psiconv_write_u32(config,buf,0))) |
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goto ERROR3; |
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/* Encoding: no RLE for now */ |
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if ((res = psiconv_write_u32(config,buf,0))) |
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goto ERROR3; |
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if (is_clipart) { |
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if ((res = psiconv_write_u32(config,buf,0xffffffff))) |
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goto ERROR3; |
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if ((res = psiconv_write_u32(config,buf,0x00000044))) |
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goto ERROR3; |
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} |
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for (i = 0; i < psiconv_list_length(bytes); i++) { |
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if (!(byteptr = psiconv_list_get(bytes,i))) |
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goto ERROR3; |
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if ((res = psiconv_write_u8(config,buf,*byteptr))) |
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goto ERROR3; |
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} |
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|
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ERROR3: |
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psiconv_list_free(bytes); |
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ERROR2: |
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psiconv_list_free(ints); |
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ERROR1: |
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return res; |
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} |
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|
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/* Translate the floating point RGB information into pixel values. |
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The palet is optional; without it, we just use the |
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colordepth. With a large palet this is not very fast, but it will do for |
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now. For greyscale pictures, just use the palet. */ |
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int psiconv_collect_pixel_data(psiconv_pixel_ints *pixels,int xsize,int ysize, |
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const psiconv_pixel_floats_t data, |
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int colordepth, |
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const psiconv_pixel_floats_t palet) |
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{ |
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int res,x,y,i; |
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psiconv_u32 index,pixel; |
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float p_red,p_green,p_blue,mult,dist,new_dist; |
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|
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if (!(*pixels = psiconv_list_new(sizeof(psiconv_u32)))) { |
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res = -PSICONV_E_NOMEM; |
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goto ERROR1; |
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} |
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|
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mult = 1 << colordepth; |
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for (y = 0; y < ysize; y++) { |
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for (x = 0; x < xsize; x++) { |
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index = y*xsize+x; |
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p_red = data.red[index]; |
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p_green = data.green[index]; |
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p_blue = data.blue[index]; |
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if (!palet.length) { |
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pixel = (((psiconv_u32) (p_red*mult+0.5)) << (2*colordepth)) + |
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(((psiconv_u32) (p_green*mult+0.5)) << colordepth) + |
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((psiconv_u32) (p_blue*mult+0.5)); |
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} else { |
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dist = 4; /* Max distance is 3, so this is safe */ |
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pixel = -1; |
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for (i = 0; i < palet.length; i++) { |
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new_dist = (p_red - palet.red[i]) * (p_red - palet.red[i]) + |
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(p_green - palet.green[i]) * (p_green - palet.green[i]) + |
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(p_blue - palet.blue[i]) * (p_blue - palet.blue[i]); |
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if (new_dist < dist) { |
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pixel = i; |
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dist = new_dist; |
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} |
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} |
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} |
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if ((res = psiconv_list_add(*pixels,&pixel))) |
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goto ERROR2; |
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} |
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} |
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return 0; |
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|
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ERROR2: |
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psiconv_list_free(*pixels); |
| 222 |
ERROR1: |
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return res; |
| 224 |
} |
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|
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int psiconv_pixel_data_to_bytes(const psiconv_config config, |
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psiconv_pixel_bytes *bytes, int xsize, |
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int ysize, const psiconv_pixel_ints pixels, |
| 229 |
int colordepth) |
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{ |
| 231 |
int res; |
| 232 |
int x,y; |
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|
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psiconv_u32 inputdata; |
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psiconv_u8 outputbyte; |
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psiconv_u32 *pixelptr; |
| 237 |
int inputbitsleft,outputbitnr,bitsfit,outputbytenr; |
| 238 |
|
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|
| 240 |
if (!bytes) { |
| 241 |
psiconv_warn(config,0,0,"NULL pixel data"); |
| 242 |
res = -PSICONV_E_GENERATE; |
| 243 |
goto ERROR1; |
| 244 |
} |
| 245 |
if (!pixels) { |
| 246 |
psiconv_warn(config,0,0,"NULL pixel data"); |
| 247 |
res = -PSICONV_E_GENERATE; |
| 248 |
goto ERROR1; |
| 249 |
} |
| 250 |
if (psiconv_list_length(pixels) != xsize * ysize) { |
| 251 |
psiconv_warn(config,0,0,"Pixel number is not correct"); |
| 252 |
res = -PSICONV_E_GENERATE; |
| 253 |
goto ERROR1; |
| 254 |
} |
| 255 |
|
| 256 |
if (!(*bytes = psiconv_list_new(sizeof(psiconv_u8)))) { |
| 257 |
res = -PSICONV_E_NOMEM; |
| 258 |
goto ERROR1; |
| 259 |
} |
| 260 |
|
| 261 |
|
| 262 |
outputbitnr = 0; |
| 263 |
outputbyte = 0; |
| 264 |
for (y = 0; y < ysize; y++) { |
| 265 |
outputbytenr = 0; |
| 266 |
for (x = 0; x < xsize; x++) { |
| 267 |
if (!(pixelptr = psiconv_list_get(pixels,y*xsize+x))) { |
| 268 |
psiconv_warn(config,0,0,"Massive internal corruption"); |
| 269 |
res = -PSICONV_E_NOMEM; |
| 270 |
goto ERROR2; |
| 271 |
} |
| 272 |
inputbitsleft = colordepth; |
| 273 |
inputdata = *pixelptr; |
| 274 |
while (inputbitsleft) { |
| 275 |
bitsfit = (inputbitsleft+outputbitnr<=8?inputbitsleft:8-outputbitnr); |
| 276 |
outputbyte |= (inputdata & ((1 << bitsfit) - 1)) << outputbitnr; |
| 277 |
inputdata = inputdata >> bitsfit; |
| 278 |
inputbitsleft -= bitsfit; |
| 279 |
outputbitnr += bitsfit; |
| 280 |
if (outputbitnr == 8) { |
| 281 |
if ((res = psiconv_list_add(*bytes,&outputbyte))) |
| 282 |
goto ERROR2; |
| 283 |
outputbitnr = 0; |
| 284 |
outputbyte = 0; |
| 285 |
outputbytenr ++; |
| 286 |
} |
| 287 |
} |
| 288 |
} |
| 289 |
/* Always end lines on a long border */ |
| 290 |
if (outputbitnr != 0) { |
| 291 |
if ((res = psiconv_list_add(*bytes,&outputbyte))) |
| 292 |
goto ERROR2; |
| 293 |
outputbitnr = 0; |
| 294 |
outputbyte = 0; |
| 295 |
outputbytenr ++; |
| 296 |
} |
| 297 |
|
| 298 |
while (outputbytenr % 0x04) { |
| 299 |
if ((res = psiconv_list_add(*bytes,&outputbyte))) |
| 300 |
goto ERROR2; |
| 301 |
outputbytenr ++; |
| 302 |
} |
| 303 |
} |
| 304 |
|
| 305 |
return 0; |
| 306 |
|
| 307 |
ERROR2: |
| 308 |
psiconv_list_free(*bytes); |
| 309 |
ERROR1: |
| 310 |
return res; |
| 311 |
} |
| 312 |
|
| 313 |
int psiconv_write_sketch_section(const psiconv_config config, |
| 314 |
psiconv_buffer buf, |
| 315 |
const psiconv_sketch_section value) |
| 316 |
{ |
| 317 |
int res; |
| 318 |
|
| 319 |
if (!value) { |
| 320 |
psiconv_warn(config,0,0,"NULL sketch section"); |
| 321 |
res = -PSICONV_E_GENERATE; |
| 322 |
goto ERROR1; |
| 323 |
} |
| 324 |
|
| 325 |
if ((res = psiconv_write_u16(config,buf,value->displayed_xsize))) |
| 326 |
goto ERROR1; |
| 327 |
if ((res = psiconv_write_u16(config,buf,value->displayed_ysize))) |
| 328 |
goto ERROR1; |
| 329 |
if ((res = psiconv_write_u16(config,buf,value->picture_data_x_offset))) |
| 330 |
goto ERROR1; |
| 331 |
if ((res = psiconv_write_u16(config,buf,value->picture_data_y_offset))) |
| 332 |
goto ERROR1; |
| 333 |
if ((res = psiconv_write_u16(config,buf,value->displayed_size_x_offset))) |
| 334 |
goto ERROR1; |
| 335 |
if ((res = psiconv_write_u16(config,buf,value->displayed_size_y_offset))) |
| 336 |
goto ERROR1; |
| 337 |
if ((res = psiconv_write_u16(config,buf,value->form_xsize))) |
| 338 |
goto ERROR1; |
| 339 |
if ((res = psiconv_write_u16(config,buf,value->form_ysize))) |
| 340 |
goto ERROR1; |
| 341 |
if ((res = psiconv_write_u16(config,buf,0x0000))) |
| 342 |
goto ERROR1; |
| 343 |
if ((res = psiconv_write_paint_data_section(config,buf,value->picture,0))) |
| 344 |
goto ERROR1; |
| 345 |
if ((res = psiconv_write_u16(config,buf,value->magnification_x * 0x03e8))) |
| 346 |
goto ERROR1; |
| 347 |
if ((res = psiconv_write_u16(config,buf,value->magnification_y * 0x03e8))) |
| 348 |
goto ERROR1; |
| 349 |
if ((res = psiconv_write_u32(config,buf,value->cut_left * 0x0c * |
| 350 |
value->displayed_xsize))) |
| 351 |
goto ERROR1; |
| 352 |
if ((res = psiconv_write_u32(config,buf,value->cut_right * 0x0c * |
| 353 |
value->displayed_xsize))) |
| 354 |
goto ERROR1; |
| 355 |
if ((res = psiconv_write_u32(config,buf,value->cut_top * 0x0c * |
| 356 |
value->displayed_ysize))) |
| 357 |
goto ERROR1; |
| 358 |
if ((res = psiconv_write_u32(config,buf,value->cut_bottom * 0x0c * |
| 359 |
value->displayed_ysize))) |
| 360 |
goto ERROR1; |
| 361 |
|
| 362 |
ERROR1: |
| 363 |
return res; |
| 364 |
} |
| 365 |
|
| 366 |
int psiconv_write_jumptable_section(const psiconv_config config, |
| 367 |
psiconv_buffer buf, |
| 368 |
const psiconv_jumptable_section value) |
| 369 |
{ |
| 370 |
int res,i; |
| 371 |
psiconv_u32 *offset_ptr; |
| 372 |
|
| 373 |
|
| 374 |
if (!value) { |
| 375 |
psiconv_warn(config,0,psiconv_buffer_length(buf), |
| 376 |
"NULL Jumptable Section"); |
| 377 |
res = -PSICONV_E_GENERATE; |
| 378 |
goto ERROR; |
| 379 |
} |
| 380 |
if ((res = psiconv_write_u32(config,buf,psiconv_list_length(value)))) |
| 381 |
goto ERROR; |
| 382 |
for (i = 0; i < psiconv_list_length(value); i++) { |
| 383 |
if (!(offset_ptr = psiconv_list_get(value,i))) { |
| 384 |
psiconv_warn(config,0,psiconv_buffer_length(buf), |
| 385 |
"Massive memory corruption"); |
| 386 |
res = -PSICONV_E_NOMEM; |
| 387 |
goto ERROR; |
| 388 |
} |
| 389 |
if ((res = psiconv_write_offset(config,buf,*offset_ptr))) |
| 390 |
goto ERROR; |
| 391 |
} |
| 392 |
|
| 393 |
ERROR: |
| 394 |
return res; |
| 395 |
} |
| 396 |
|
| 397 |
int psiconv_write_clipart_section(const psiconv_config config, |
| 398 |
psiconv_buffer buf, |
| 399 |
const psiconv_clipart_section value) |
| 400 |
{ |
| 401 |
int res; |
| 402 |
|
| 403 |
|
| 404 |
if (!value) { |
| 405 |
psiconv_warn(config,0,psiconv_buffer_length(buf), |
| 406 |
"NULL Clipart Section"); |
| 407 |
res = -PSICONV_E_GENERATE; |
| 408 |
goto ERROR; |
| 409 |
} |
| 410 |
if ((res = psiconv_write_u32(config,buf,PSICONV_ID_CLIPART_ITEM))) |
| 411 |
goto ERROR; |
| 412 |
if ((res = psiconv_write_u32(config,buf,0x00000002))) |
| 413 |
goto ERROR; |
| 414 |
if ((res = psiconv_write_u32(config,buf,0x00000000))) |
| 415 |
goto ERROR; |
| 416 |
if ((res = psiconv_write_u32(config,buf,0x00000000))) |
| 417 |
goto ERROR; |
| 418 |
if ((res = psiconv_write_u32(config,buf,0x0000000C))) |
| 419 |
goto ERROR; |
| 420 |
if ((res = psiconv_write_paint_data_section(config,buf,value->picture,1))) |
| 421 |
goto ERROR; |
| 422 |
|
| 423 |
ERROR: |
| 424 |
return res; |
| 425 |
} |
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