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/* See LICENSE file for licensing information.
*/
#include "pm_c_util.h"
#include "mallocvar.h"
#include "pnm.h"
#include "palm.h"
int
palmcolor_compare_indices(const void * const p1,
const void * const p2) {
if ((*((Color) p1) & 0xFF000000) < (*((Color) p2) & 0xFF000000))
return -1;
else if ((*((Color) p1) & 0xFF000000) > (*((Color) p2) & 0xFF000000))
return 1;
else
return 0;
}
int
palmcolor_compare_colors(const void * const p1,
const void * const p2) {
unsigned long const val1 = *((const unsigned long *) p1) & 0xFFFFFF;
unsigned long const val2 = *((const unsigned long *) p2) & 0xFFFFFF;
if (val1 < val2)
return -1;
else if (val1 > val2)
return 1;
else
return 0;
}
/***********************************************************************
***********************************************************************
***********************************************************************
******* colortables from pilrc-2.6/bitmap.c ***************************
***********************************************************************
***********************************************************************
***********************************************************************/
#if 0
/*
* The 1bit-2 color system palette for Palm Computing Devices.
*/
static int PalmPalette1bpp[2][3] =
{
{ 255, 255, 255}, { 0, 0, 0 }
};
/*
* The 2bit-4 color system palette for Palm Computing Devices.
*/
static int PalmPalette2bpp[4][3] =
{
{ 255, 255, 255}, { 192, 192, 192}, { 128, 128, 128 }, { 0, 0, 0 }
};
/*
* The 4bit-16 color system palette for Palm Computing Devices.
*/
static int PalmPalette4bpp[16][3] =
{
{ 255, 255, 255}, { 238, 238, 238 }, { 221, 221, 221 }, { 204, 204, 204 },
{ 187, 187, 187}, { 170, 170, 170 }, { 153, 153, 153 }, { 136, 136, 136 },
{ 119, 119, 119}, { 102, 102, 102 }, { 85, 85, 85 }, { 68, 68, 68 },
{ 51, 51, 51}, { 34, 34, 34 }, { 17, 17, 17 }, { 0, 0, 0 }
};
/*
* The 4bit-16 color system palette for Palm Computing Devices.
*/
static int PalmPalette4bppColor[16][3] =
{
{ 255, 255, 255}, { 128, 128, 128 }, { 128, 0, 0 }, { 128, 128, 0 },
{ 0, 128, 0}, { 0, 128, 128 }, { 0, 0, 128 }, { 128, 0, 128 },
{ 255, 0, 255}, { 192, 192, 192 }, { 255, 0, 0 }, { 255, 255, 0 },
{ 0, 255, 0}, { 0, 255, 255 }, { 0, 0, 255 }, { 0, 0, 0 }
};
#endif /* 0 */
/*
* The 8bit-256 color system palette for Palm Computing Devices.
*
* NOTE: only the first 231, plus the last one, are valid.
*/
static int PalmPalette8bpp[256][3] =
{
{ 255, 255, 255 }, { 255, 204, 255 }, { 255, 153, 255 }, { 255, 102, 255 },
{ 255, 51, 255 }, { 255, 0, 255 }, { 255, 255, 204 }, { 255, 204, 204 },
{ 255, 153, 204 }, { 255, 102, 204 }, { 255, 51, 204 }, { 255, 0, 204 },
{ 255, 255, 153 }, { 255, 204, 153 }, { 255, 153, 153 }, { 255, 102, 153 },
{ 255, 51, 153 }, { 255, 0, 153 }, { 204, 255, 255 }, { 204, 204, 255 },
{ 204, 153, 255 }, { 204, 102, 255 }, { 204, 51, 255 }, { 204, 0, 255 },
{ 204, 255, 204 }, { 204, 204, 204 }, { 204, 153, 204 }, { 204, 102, 204 },
{ 204, 51, 204 }, { 204, 0, 204 }, { 204, 255, 153 }, { 204, 204, 153 },
{ 204, 153, 153 }, { 204, 102, 153 }, { 204, 51, 153 }, { 204, 0, 153 },
{ 153, 255, 255 }, { 153, 204, 255 }, { 153, 153, 255 }, { 153, 102, 255 },
{ 153, 51, 255 }, { 153, 0, 255 }, { 153, 255, 204 }, { 153, 204, 204 },
{ 153, 153, 204 }, { 153, 102, 204 }, { 153, 51, 204 }, { 153, 0, 204 },
{ 153, 255, 153 }, { 153, 204, 153 }, { 153, 153, 153 }, { 153, 102, 153 },
{ 153, 51, 153 }, { 153, 0, 153 }, { 102, 255, 255 }, { 102, 204, 255 },
{ 102, 153, 255 }, { 102, 102, 255 }, { 102, 51, 255 }, { 102, 0, 255 },
{ 102, 255, 204 }, { 102, 204, 204 }, { 102, 153, 204 }, { 102, 102, 204 },
{ 102, 51, 204 }, { 102, 0, 204 }, { 102, 255, 153 }, { 102, 204, 153 },
{ 102, 153, 153 }, { 102, 102, 153 }, { 102, 51, 153 }, { 102, 0, 153 },
{ 51, 255, 255 }, { 51, 204, 255 }, { 51, 153, 255 }, { 51, 102, 255 },
{ 51, 51, 255 }, { 51, 0, 255 }, { 51, 255, 204 }, { 51, 204, 204 },
{ 51, 153, 204 }, { 51, 102, 204 }, { 51, 51, 204 }, { 51, 0, 204 },
{ 51, 255, 153 }, { 51, 204, 153 }, { 51, 153, 153 }, { 51, 102, 153 },
{ 51, 51, 153 }, { 51, 0, 153 }, { 0, 255, 255 }, { 0, 204, 255 },
{ 0, 153, 255 }, { 0, 102, 255 }, { 0, 51, 255 }, { 0, 0, 255 },
{ 0, 255, 204 }, { 0, 204, 204 }, { 0, 153, 204 }, { 0, 102, 204 },
{ 0, 51, 204 }, { 0, 0, 204 }, { 0, 255, 153 }, { 0, 204, 153 },
{ 0, 153, 153 }, { 0, 102, 153 }, { 0, 51, 153 }, { 0, 0, 153 },
{ 255, 255, 102 }, { 255, 204, 102 }, { 255, 153, 102 }, { 255, 102, 102 },
{ 255, 51, 102 }, { 255, 0, 102 }, { 255, 255, 51 }, { 255, 204, 51 },
{ 255, 153, 51 }, { 255, 102, 51 }, { 255, 51, 51 }, { 255, 0, 51 },
{ 255, 255, 0 }, { 255, 204, 0 }, { 255, 153, 0 }, { 255, 102, 0 },
{ 255, 51, 0 }, { 255, 0, 0 }, { 204, 255, 102 }, { 204, 204, 102 },
{ 204, 153, 102 }, { 204, 102, 102 }, { 204, 51, 102 }, { 204, 0, 102 },
{ 204, 255, 51 }, { 204, 204, 51 }, { 204, 153, 51 }, { 204, 102, 51 },
{ 204, 51, 51 }, { 204, 0, 51 }, { 204, 255, 0 }, { 204, 204, 0 },
{ 204, 153, 0 }, { 204, 102, 0 }, { 204, 51, 0 }, { 204, 0, 0 },
{ 153, 255, 102 }, { 153, 204, 102 }, { 153, 153, 102 }, { 153, 102, 102 },
{ 153, 51, 102 }, { 153, 0, 102 }, { 153, 255, 51 }, { 153, 204, 51 },
{ 153, 153, 51 }, { 153, 102, 51 }, { 153, 51, 51 }, { 153, 0, 51 },
{ 153, 255, 0 }, { 153, 204, 0 }, { 153, 153, 0 }, { 153, 102, 0 },
{ 153, 51, 0 }, { 153, 0, 0 }, { 102, 255, 102 }, { 102, 204, 102 },
{ 102, 153, 102 }, { 102, 102, 102 }, { 102, 51, 102 }, { 102, 0, 102 },
{ 102, 255, 51 }, { 102, 204, 51 }, { 102, 153, 51 }, { 102, 102, 51 },
{ 102, 51, 51 }, { 102, 0, 51 }, { 102, 255, 0 }, { 102, 204, 0 },
{ 102, 153, 0 }, { 102, 102, 0 }, { 102, 51, 0 }, { 102, 0, 0 },
{ 51, 255, 102 }, { 51, 204, 102 }, { 51, 153, 102 }, { 51, 102, 102 },
{ 51, 51, 102 }, { 51, 0, 102 }, { 51, 255, 51 }, { 51, 204, 51 },
{ 51, 153, 51 }, { 51, 102, 51 }, { 51, 51, 51 }, { 51, 0, 51 },
{ 51, 255, 0 }, { 51, 204, 0 }, { 51, 153, 0 }, { 51, 102, 0 },
{ 51, 51, 0 }, { 51, 0, 0 }, { 0, 255, 102 }, { 0, 204, 102 },
{ 0, 153, 102 }, { 0, 102, 102 }, { 0, 51, 102 }, { 0, 0, 102 },
{ 0, 255, 51 }, { 0, 204, 51 }, { 0, 153, 51 }, { 0, 102, 51 },
{ 0, 51, 51 }, { 0, 0, 51 }, { 0, 255, 0 }, { 0, 204, 0 },
{ 0, 153, 0 }, { 0, 102, 0 }, { 0, 51, 0 }, { 17, 17, 17 },
{ 34, 34, 34 }, { 68, 68, 68 }, { 85, 85, 85 }, { 119, 119, 119 },
{ 136, 136, 136 }, { 170, 170, 170 }, { 187, 187, 187 }, { 221, 221, 221 },
{ 238, 238, 238 }, { 192, 192, 192 }, { 128, 0, 0 }, { 128, 0, 128 },
{ 0, 128, 0 }, { 0, 128, 128 }, { 0, 0, 0 }, { 0, 0, 0 },
{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 },
{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 },
{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 },
{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 },
{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 },
{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }
};
Colormap
palmcolor_build_default_8bit_colormap(void) {
unsigned int i;
Colormap cm;
MALLOCVAR_NOFAIL(cm);
cm->nentries = 232;
MALLOCARRAY_NOFAIL(cm->color_entries, cm->nentries);
/* Fill in the colors */
for (i = 0; i < 231; ++i) {
cm->color_entries[i] = ((i << 24) |
(PalmPalette8bpp[i][0] << 16) |
(PalmPalette8bpp[i][1] << 8) |
(PalmPalette8bpp[i][2]));
}
cm->color_entries[231] = 0xFF000000;
cm->ncolors = 232;
/* now sort the table */
qsort (cm->color_entries, cm->ncolors, sizeof(Color_s),
palmcolor_compare_colors);
return cm;
}
Colormap
palmcolor_build_custom_8bit_colormap(unsigned int const rows,
unsigned int const cols,
pixel ** const pixels) {
unsigned int row;
Colormap colormap;
MALLOCVAR_NOFAIL(colormap);
colormap->nentries = 256;
MALLOCARRAY_NOFAIL(colormap->color_entries, colormap->nentries);
colormap->ncolors = 0; /* initial value */
for (row = 0; row < rows; ++row) {
unsigned int col;
for (col = 0; col < cols; ++col) {
Color found;
Color_s temp;
temp = ((PPM_GETR(pixels[row][col]) << 16) |
(PPM_GETG(pixels[row][col]) << 8) |
PPM_GETB(pixels[row][col]));
found = (bsearch (&temp,
colormap->color_entries, colormap->ncolors,
sizeof(Color_s), palmcolor_compare_colors));
if (!found) {
if (colormap->ncolors >= colormap->nentries)
pm_error("Too many colors for custom colormap "
"(max 256). "
"Try using pnmquant to reduce the number "
"of colors.");
else {
/* add the new color, and re-sort */
temp |= ((colormap->ncolors) << 24);
colormap->color_entries[colormap->ncolors] = temp;
colormap->ncolors += 1;
qsort(colormap->color_entries, colormap->ncolors,
sizeof(Color_s), palmcolor_compare_colors);
}
}
}
}
return colormap;
}
Colormap
palmcolor_read_colormap (FILE * const ifP) {
unsigned short ncolors;
Colormap retval;
int rc;
rc = pm_readbigshort(ifP, (short *) &ncolors);
if (rc != 0)
retval = NULL;
else {
long colorentry;
Colormap colormap;
unsigned int i;
bool error;
MALLOCVAR_NOFAIL(colormap);
colormap->nentries = ncolors;
MALLOCARRAY_NOFAIL(colormap->color_entries, colormap->nentries);
for (i = 0, error = FALSE; i < ncolors && !error; ++i) {
int rc;
rc = pm_readbiglong(ifP, &colorentry);
if (rc != 0)
error = TRUE;
else
colormap->color_entries[i] = (colorentry & 0xFFFFFFFF);
}
if (error) {
free (colormap->color_entries);
free (colormap);
retval = NULL;
} else {
colormap->ncolors = ncolors;
retval = colormap;
}
}
return retval;
}
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