diff options
Diffstat (limited to 'converter/other/pnmtopalm/palmcolormap.c')
| -rw-r--r-- | converter/other/pnmtopalm/palmcolormap.c | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/converter/other/pnmtopalm/palmcolormap.c b/converter/other/pnmtopalm/palmcolormap.c new file mode 100644 index 00000000..a1a1cec1 --- /dev/null +++ b/converter/other/pnmtopalm/palmcolormap.c @@ -0,0 +1,277 @@ +/* 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; +} |