--- CV/CV.xs 2005/07/20 02:26:46 1.16 +++ CV/CV.xs 2005/08/14 02:25:44 1.22 @@ -2,12 +2,17 @@ #include "perl.h" #include "XSUB.h" +#include +#include + +#include #include #include #include -#define IW 80 +#define IW 80 /* MUST match Schnauer.pm! */ +#define IH 60 /* MUST match Schnauer.pm! */ #define RAND (seed = (seed + 7141) * 54773 % 134456) @@ -15,6 +20,51 @@ #define ELLIPSIS "\xe2\x80\xa6" +struct jpg_err_mgr +{ + struct jpeg_error_mgr err; + jmp_buf setjmp_buffer; +}; + +static void +cv_error_exit (j_common_ptr cinfo) +{ + longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); +} + +static void +cv_error_output (j_common_ptr cinfo) +{ + return; +} + +static void +rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, + unsigned int *h, unsigned int *s, unsigned int *v) +{ + unsigned int mx = r; if (g > mx) mx = g; if (b > mx) mx = b; + unsigned int mn = r; if (g < mn) mn = g; if (b < mn) mn = b; + unsigned int delta = mx - mn; + + *v = mx; + + *s = mx ? delta * 255 / mx : 0; + + if (delta == 0) + *h = 0; + else + { + if (r == mx) + *h = ((int)g - (int)b) * 255 / (int)(delta * 3); + else if (g == mx) + *h = ((int)b - (int)r) * 255 / (int)(delta * 3) + 52; + else if (b == mx) + *h = ((int)r - (int)g) * 255 / (int)(delta * 3) + 103; + + *h &= 255; + } +} + static guint32 a85_val; static guint a85_cnt; static guchar a85_buf[LINELENGTH], *a85_ptr; @@ -70,39 +120,25 @@ PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); } -static void -rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, - unsigned int *h, unsigned int *s, unsigned int *v) -{ - unsigned int mx = r; if (g > mx) mx = g; if (b > mx) mx = b; - unsigned int mn = r; if (g < mn) mn = g; if (b < mn) mn = b; - unsigned int delta = mx - mn; - - *v = mx; - - *s = mx ? delta * 255 / mx : 0; - - if (delta == 0) - *h = 0; - else - { - if (r == mx) - *h = ((int)g - (int)b) * 255 / (int)(delta * 3); - else if (g == mx) - *h = ((int)b - (int)r) * 255 / (int)(delta * 3) + 52; - else if (b == mx) - *h = ((int)r - (int)g) * 255 / (int)(delta * 3) + 103; - - *h &= 255; - } -} - ///////////////////////////////////////////////////////////////////////////// MODULE = Gtk2::CV PACKAGE = Gtk2::CV PROTOTYPES: ENABLE +# missing in Gtk2 perl module + +gboolean +gdk_net_wm_supports (GdkAtom property) + CODE: +#if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) + RETVAL = gdk_net_wm_supports (property); +#else + RETVAL = 0; +#endif + OUTPUT: + RETVAL + GdkPixbuf_noinc * transpose (GdkPixbuf *pb) CODE: @@ -151,12 +187,148 @@ OUTPUT: RETVAL +GdkPixbuf_noinc * +load_jpeg (char *path, int thumbnail=0) + CODE: +{ + struct jpeg_decompress_struct cinfo; + struct jpg_err_mgr jerr; + guchar *data; + int rs; + FILE *fp; + volatile GdkPixbuf *pb = 0; + RETVAL = 0; + + if (!(fp = fopen (path, "rb"))) + XSRETURN_UNDEF; + + cinfo.err = jpeg_std_error (&jerr.err); + + jerr.err.error_exit = cv_error_exit; + jerr.err.output_message = cv_error_output; + + if ((rs = setjmp (jerr.setjmp_buffer))) + { + fclose (fp); + jpeg_destroy_decompress (&cinfo); + + if (pb) + g_object_unref ((gpointer)pb); + + XSRETURN_UNDEF; + } + + jpeg_create_decompress (&cinfo); + + jpeg_stdio_src (&cinfo, fp); + jpeg_read_header (&cinfo, TRUE); + + cinfo.dct_method = JDCT_DEFAULT; + cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ + cinfo.do_block_smoothing = FALSE; + cinfo.out_color_space = JCS_RGB; + cinfo.quantize_colors = FALSE; + + cinfo.scale_num = 1; + cinfo.scale_denom = 1; + + jpeg_calc_output_dimensions (&cinfo); + + if (thumbnail) + { + cinfo.dct_method = JDCT_FASTEST; + cinfo.do_fancy_upsampling = FALSE; + + while (cinfo.scale_denom < 8 + && cinfo.output_width >= IW*4 + && cinfo.output_height >= IH*4) + { + cinfo.scale_denom <<= 1; + jpeg_calc_output_dimensions (&cinfo); + } + } + + pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height); + if (!RETVAL) + longjmp (jerr.setjmp_buffer, 2); + + data = gdk_pixbuf_get_pixels (RETVAL); + rs = gdk_pixbuf_get_rowstride (RETVAL); + + if (cinfo.output_components != 3) + longjmp (jerr.setjmp_buffer, 3); + + jpeg_start_decompress (&cinfo); + + while (cinfo.output_scanline < cinfo.output_height) + { + int remaining = cinfo.output_height - cinfo.output_scanline; + JSAMPROW rp[4]; + + rp [0] = data + cinfo.output_scanline * rs; + rp [1] = (guchar *)rp [0] + rs; + rp [2] = (guchar *)rp [1] + rs; + rp [3] = (guchar *)rp [2] + rs; + + jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); + } + + jpeg_finish_decompress (&cinfo); + fclose (fp); + jpeg_destroy_decompress (&cinfo); +} + OUTPUT: + RETVAL + ############################################################################# MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer +SV * +foldcase (SV *pathsv) + PROTOTYPE: $ + CODE: +{ + STRLEN plen; + U8 *path = SvPVutf8 (pathsv, plen); + U8 *pend = path + plen; + U8 dst [plen * 6 * 3], *dstp = dst; + + while (path < pend) + { + U8 ch = *path; + + if (ch >= 'a' && ch <= 'z') + *dstp++ = *path++; + else if (ch >= '0' && ch <= '9') + { + STRLEN el, nl = 0; + while (*path >= '0' && *path <= '9' && path < pend) + path++, nl++; + + for (el = nl; el < 6; el++) + *dstp++ = '0'; + + memcpy (dstp, path - nl, nl); + dstp += nl; + } + else + { + STRLEN cl; + to_utf8_fold (path, dstp, &cl); + dstp += cl; + path += is_utf8_char (path); + } + } + + RETVAL = newSVpvn (dst, dstp - dst); +} + OUTPUT: + RETVAL + GdkPixbuf_noinc * p7_to_pb (int w, int h, guchar *src) + PROTOTYPE: @ CODE: { int x, y; @@ -215,9 +387,9 @@ int r, g, b; guchar *p = src + x * bpp + y * sstr; - r = ((p[0] + er + Er[x]) * 7 + 128) / 255; - g = ((p[1] + eg + Eg[x]) * 7 + 128) / 255; - b = ((p[2] + eb + Eb[x]) * 3 + 128) / 255; + r = ((p[0] + er + Er[x]) * 7 + (RAND & 127) + 64) / 255; + g = ((p[1] + eg + Eg[x]) * 7 + (RAND & 127) + 64) / 255; + b = ((p[2] + eb + Eb[x]) * 3 + (RAND & 127) + 64) / 255; r = r > 7 ? 7 : r < 0 ? 0 : r; g = g > 7 ? 7 : g < 0 ? 0 : g; @@ -227,9 +399,9 @@ eg += p[1] - (g * 255 + 4) / 7; eb += p[2] - (b * 255 + 2) / 3; - Er[x] = er / 2; er -= er / 2 + RAND % 5 - 2; - Eg[x] = eg / 2; eg -= eg / 2 + RAND % 5 - 2; - Eb[x] = eb / 2; eb -= eb / 2 + RAND % 5 - 2; + Er[x] = er >> 1; er -= (er + 1) >> 1; + Eg[x] = eg >> 1; eg -= (eg + 1) >> 1; + Eb[x] = eb >> 1; eb -= (eb + 1) >> 1; *dst++ = r << 5 | g << 2 | b; } @@ -238,62 +410,6 @@ OUTPUT: RETVAL -SV * -make_histogram (SV *ar) - CODE: -{ - int i; - AV *av, *result; - - if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) - croak ("Not an array ref as first argument to make_histogram"); - - av = (AV *) SvRV (ar); - result = newAV (); - - for (i = 0; i <= av_len (av); ++i) - { - const int HISTSIZE = 64; - - int j; - SV *sv = *av_fetch (av, i, 1); - STRLEN len; - char *buf = SvPVbyte (sv, len); - - int tmphist[HISTSIZE]; - float *hist; - - SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); - SvPOK_on (histsv); - SvCUR_set (histsv, HISTSIZE * sizeof (float)); - hist = (float *)SvPVX (histsv); - - Zero (tmphist, sizeof (tmphist), char); - - for (j = len; j--; ) - { - unsigned int idx - = ((*buf & 0xc0) >> 2) - | ((*buf & 0x18) >> 1) - | (*buf & 0x03); - - ++tmphist[idx]; - ++buf; - } - - for (j = 0; j < HISTSIZE; ++j) - hist[j] = (float)tmphist[j] / (len + 1e-30); - - av_push (result, histsv); - } - - RETVAL = newRV_noinc ((SV *)result); -} - OUTPUT: - RETVAL - - - ############################################################################# MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript @@ -426,5 +542,62 @@ OUTPUT: RETVAL +############################################################################# + +MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster + +SV * +make_histograms (SV *ar) + CODE: +{ + int i; + AV *av, *result; + + if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) + croak ("Not an array ref as first argument to make_histogram"); + + av = (AV *) SvRV (ar); + result = newAV (); + + for (i = 0; i <= av_len (av); ++i) + { + const int HISTSIZE = 64; + + int j; + SV *sv = *av_fetch (av, i, 1); + STRLEN len; + char *buf = SvPVbyte (sv, len); + + int tmphist[HISTSIZE]; + float *hist; + + SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); + SvPOK_on (histsv); + SvCUR_set (histsv, HISTSIZE * sizeof (float)); + hist = (float *)SvPVX (histsv); + + Zero (tmphist, sizeof (tmphist), char); + + for (j = len; j--; ) + { + unsigned int idx + = ((*buf & 0xc0) >> 2) + | ((*buf & 0x18) >> 1) + | (*buf & 0x03); + + ++tmphist[idx]; + ++buf; + } + + for (j = 0; j < HISTSIZE; ++j) + hist[j] = (float)tmphist[j] / (len + 1e-30); + + av_push (result, histsv); + } + + RETVAL = newRV_noinc ((SV *)result); +} + OUTPUT: + RETVAL