… | |
… | |
2 | #include "perl.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
4 | |
4 | |
5 | #include <string.h> |
5 | #include <string.h> |
6 | #include <setjmp.h> |
6 | #include <setjmp.h> |
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7 | #include <math.h> |
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8 | |
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9 | #include <magic.h> |
7 | |
10 | |
8 | #include <jpeglib.h> |
11 | #include <jpeglib.h> |
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12 | #include <jerror.h> |
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13 | |
9 | #include <glib.h> |
14 | #include <glib.h> |
10 | #include <gtk/gtk.h> |
15 | #include <gtk/gtk.h> |
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16 | #include <gdk/gdkx.h> |
11 | #include <gdk-pixbuf/gdk-pixbuf.h> |
17 | #include <gdk-pixbuf/gdk-pixbuf.h> |
12 | |
18 | |
13 | #include <gperl.h> |
19 | #include <gperl.h> |
14 | #include <gtk2perl.h> |
20 | #include <gtk2perl.h> |
15 | |
21 | |
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22 | #include <assert.h> |
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23 | |
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24 | #if WEBP |
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25 | #include <webp/demux.h> |
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26 | #include <webp/decode.h> |
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27 | #endif |
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28 | |
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29 | #include "perlmulticore.h" |
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30 | |
16 | #define IW 80 /* MUST match Schnauer.pm! */ |
31 | #define IW 80 /* MUST match Schnauzer.pm! */ |
17 | #define IH 60 /* MUST match Schnauer.pm! */ |
32 | #define IH 60 /* MUST match Schnauzer.pm! */ |
18 | |
33 | |
19 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
34 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
20 | |
35 | |
21 | #define LINELENGTH 240 |
36 | #define LINELENGTH 240 |
22 | |
37 | |
23 | #define ELLIPSIS "\xe2\x80\xa6" |
38 | #define ELLIPSIS "\xe2\x80\xa6" |
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39 | |
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40 | typedef char *octet_string; |
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41 | |
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42 | static magic_t magic_cookie[2]; /* !mime, mime */ |
24 | |
43 | |
25 | struct jpg_err_mgr |
44 | struct jpg_err_mgr |
26 | { |
45 | { |
27 | struct jpeg_error_mgr err; |
46 | struct jpeg_error_mgr err; |
28 | jmp_buf setjmp_buffer; |
47 | jmp_buf setjmp_buffer; |
29 | }; |
48 | }; |
30 | |
49 | |
31 | static void |
50 | static void |
32 | cv_error_exit (j_common_ptr cinfo) |
51 | cv_error_exit (j_common_ptr cinfo) |
33 | { |
52 | { |
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53 | cinfo->err->output_message (cinfo); |
34 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
54 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
35 | } |
55 | } |
36 | |
56 | |
37 | static void |
57 | static void |
38 | cv_error_output (j_common_ptr cinfo) |
58 | cv_error_output (j_common_ptr cinfo) |
39 | { |
59 | { |
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60 | char msg[JMSG_LENGTH_MAX]; |
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61 | |
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62 | cinfo->err->format_message (cinfo, msg); |
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63 | |
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64 | fprintf (stderr, "JPEG decoding error: %s\n", msg); |
40 | return; |
65 | return; |
41 | } |
66 | } |
42 | |
67 | |
43 | static void |
68 | static void |
44 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
69 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
… | |
… | |
65 | |
90 | |
66 | *h &= 255; |
91 | *h &= 255; |
67 | } |
92 | } |
68 | } |
93 | } |
69 | |
94 | |
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95 | struct feature { |
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96 | float v1, v2, v3; // mean, square, cube |
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97 | int n; |
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98 | }; |
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99 | |
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100 | static void |
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101 | feature_init (struct feature *f) |
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102 | { |
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103 | f->v1 = 0.; |
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104 | f->v2 = 0.; |
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105 | f->v3 = 0.; |
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106 | f->n = 0; |
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107 | } |
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108 | |
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109 | // didn't find an algorithm to neatly do mean, variance and skew in one pass. |
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110 | // elmex ist schuld. |
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111 | static void |
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112 | feature_update_pass_1 (struct feature *f, unsigned int v) |
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113 | { |
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114 | f->v1 += v; |
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115 | f->n += 1; |
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116 | } |
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117 | |
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118 | static void |
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119 | feature_finish_pass_1 (struct feature *f) |
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120 | { |
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121 | if (f->n < 1) |
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122 | return; |
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123 | |
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124 | f->v1 /= f->n; |
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125 | } |
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126 | |
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127 | static void |
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128 | feature_update_pass_2 (struct feature *f, unsigned int v) |
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129 | { |
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130 | float d = v - f->v1; |
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131 | |
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132 | f->v2 += d * d; |
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133 | f->v3 += d * d * d; |
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134 | } |
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135 | |
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136 | static void |
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137 | feature_finish_pass_2 (struct feature *f) |
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138 | { |
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139 | if (f->n < 1) |
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140 | return; |
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141 | |
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142 | f->v2 /= f->n; |
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143 | f->v3 /= f->n; |
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144 | |
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145 | f->v1 /= 255.; |
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146 | f->v2 /= 255. * 255.; f->v2 = sqrtf (f->v2); |
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147 | f->v3 /= 255. * 255. * 255.; f->v3 = powf (fabsf (f->v3), 1./3.); |
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148 | } |
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149 | |
70 | static guint32 a85_val; |
150 | static guint32 a85_val; |
71 | static guint a85_cnt; |
151 | static guint a85_cnt; |
72 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
152 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
73 | |
153 | |
74 | static void |
154 | static void |
… | |
… | |
86 | if (!--a85_cnt) |
166 | if (!--a85_cnt) |
87 | { |
167 | { |
88 | a85_cnt = 4; |
168 | a85_cnt = 4; |
89 | if (a85_val) |
169 | if (a85_val) |
90 | { |
170 | { |
91 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
171 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
92 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
172 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
93 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
173 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
94 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
174 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
95 | a85_ptr[0] = (a85_val ) + 33; |
175 | a85_ptr[0] = (a85_val ) + 33; |
96 | |
176 | |
97 | a85_ptr += 5; |
177 | a85_ptr += 5; |
98 | } |
178 | } |
… | |
… | |
122 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
202 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
123 | } |
203 | } |
124 | |
204 | |
125 | ///////////////////////////////////////////////////////////////////////////// |
205 | ///////////////////////////////////////////////////////////////////////////// |
126 | |
206 | |
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207 | static void cv_ms_init (j_decompress_ptr cinfo) |
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208 | { |
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209 | } |
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210 | |
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211 | static void cv_ms_term (j_decompress_ptr cinfo) |
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212 | { |
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213 | } |
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214 | |
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215 | static boolean cv_ms_fill (j_decompress_ptr cinfo) |
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216 | { |
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217 | ERREXIT (cinfo, JERR_INPUT_EMPTY); |
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218 | |
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219 | return TRUE; |
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220 | } |
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221 | |
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222 | static void cv_ms_skip (j_decompress_ptr cinfo, long num_bytes) |
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223 | { |
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224 | if (num_bytes > 0) |
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225 | { |
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226 | struct jpeg_source_mgr *src = (struct jpeg_source_mgr *)cinfo->src; |
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227 | |
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228 | src->next_input_byte += num_bytes; |
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229 | src->bytes_in_buffer -= num_bytes; |
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230 | } |
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231 | } |
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232 | |
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233 | static void cv_jpeg_mem_src (j_decompress_ptr cinfo, void *buf, size_t buflen) |
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234 | { |
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235 | struct jpeg_source_mgr *src; |
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236 | |
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237 | if (!cinfo->src) |
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238 | cinfo->src = (struct jpeg_source_mgr *) |
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239 | (*cinfo->mem->alloc_small) ( |
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240 | (j_common_ptr) cinfo, JPOOL_PERMANENT, sizeof (struct jpeg_source_mgr) |
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241 | ); |
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242 | |
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243 | src = (struct jpeg_source_mgr *)cinfo->src; |
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244 | src->init_source = cv_ms_init; |
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245 | src->fill_input_buffer = cv_ms_fill; |
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246 | src->skip_input_data = cv_ms_skip; |
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247 | src->resync_to_restart = jpeg_resync_to_restart; |
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248 | src->term_source = cv_ms_term; |
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249 | src->next_input_byte = (JOCTET *)buf; |
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250 | src->bytes_in_buffer = buflen; |
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251 | } |
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252 | |
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253 | ///////////////////////////////////////////////////////////////////////////// |
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254 | |
127 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
255 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
128 | |
256 | |
129 | PROTOTYPES: ENABLE |
257 | PROTOTYPES: ENABLE |
130 | |
258 | |
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259 | # missing function in perl. really :) |
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260 | int |
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261 | common_prefix_length (a, b) |
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262 | unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); |
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263 | unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); |
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264 | CODE: |
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265 | RETVAL = 0; |
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266 | |
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267 | while (*a == *b && *a) |
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268 | { |
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269 | RETVAL += (*a & 0xc0) != 0x80; |
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270 | a++, b++; |
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271 | } |
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272 | |
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273 | OUTPUT: |
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274 | RETVAL |
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275 | |
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276 | const char * |
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277 | magic (SV *path_or_data) |
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278 | ALIAS: |
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279 | magic = 0 |
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280 | magic_mime = 1 |
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281 | magic_buffer = 2 |
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282 | magic_buffer_mime = 3 |
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283 | CODE: |
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284 | { |
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285 | STRLEN len; |
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286 | char *data = SvPVbyte (path_or_data, len); |
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287 | |
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288 | if (!magic_cookie[0]) |
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289 | { |
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290 | magic_cookie[0] = magic_open (MAGIC_SYMLINK); |
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291 | magic_cookie[1] = magic_open (MAGIC_SYMLINK | MAGIC_MIME_TYPE); |
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292 | magic_load (magic_cookie[0], 0); |
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293 | magic_load (magic_cookie[1], 0); |
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294 | } |
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295 | |
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296 | perlinterp_release (); |
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297 | |
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298 | RETVAL = ix & 2 |
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299 | ? magic_buffer (magic_cookie[ix & 1], data, len) |
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300 | : magic_file (magic_cookie[ix & 1], data); |
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301 | |
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302 | perlinterp_acquire (); |
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303 | } |
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304 | OUTPUT: |
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305 | RETVAL |
|
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306 | |
131 | # missing in Gtk2 perl module |
307 | # missing/broken in Gtk2 perl module |
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308 | |
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309 | void |
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310 | gdk_window_clear_hints (GdkWindow *window) |
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311 | CODE: |
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312 | gdk_window_set_geometry_hints (window, 0, 0); |
132 | |
313 | |
133 | gboolean |
314 | gboolean |
134 | gdk_net_wm_supports (GdkAtom property) |
315 | gdk_net_wm_supports (GdkAtom property) |
135 | CODE: |
316 | CODE: |
136 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
317 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
… | |
… | |
142 | RETVAL |
323 | RETVAL |
143 | |
324 | |
144 | GdkPixbuf_noinc * |
325 | GdkPixbuf_noinc * |
145 | dealpha_expose (GdkPixbuf *pb) |
326 | dealpha_expose (GdkPixbuf *pb) |
146 | CODE: |
327 | CODE: |
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328 | perlinterp_release (); |
147 | { |
329 | { |
148 | int w = gdk_pixbuf_get_width (pb); |
330 | int w = gdk_pixbuf_get_width (pb); |
149 | int h = gdk_pixbuf_get_height (pb); |
331 | int h = gdk_pixbuf_get_height (pb); |
150 | int bpp = gdk_pixbuf_get_n_channels (pb); |
332 | int bpp = gdk_pixbuf_get_n_channels (pb); |
151 | int x, y, i; |
333 | int x, y, i; |
… | |
… | |
160 | for (x = 0; x < w; x++) |
342 | for (x = 0; x < w; x++) |
161 | for (y = 0; y < h; y++) |
343 | for (y = 0; y < h; y++) |
162 | for (i = 0; i < 3; i++) |
344 | for (i = 0; i < 3; i++) |
163 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
345 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
164 | } |
346 | } |
|
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347 | perlinterp_acquire (); |
165 | OUTPUT: |
348 | OUTPUT: |
166 | RETVAL |
349 | RETVAL |
167 | |
350 | |
168 | GdkPixbuf_noinc * |
351 | GdkPixbuf_noinc * |
169 | transpose (GdkPixbuf *pb) |
352 | rotate (GdkPixbuf *pb, int angle) |
170 | CODE: |
353 | CODE: |
171 | { |
354 | perlinterp_release (); |
172 | int w = gdk_pixbuf_get_width (pb); |
355 | if (angle < 0) |
173 | int h = gdk_pixbuf_get_height (pb); |
356 | angle += 360; |
174 | int bpp = gdk_pixbuf_get_n_channels (pb); |
357 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
175 | int x, y, i; |
358 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
176 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
359 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
177 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
360 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
178 | |
361 | : angle); |
179 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w); |
362 | perlinterp_acquire (); |
180 | |
|
|
181 | dst = gdk_pixbuf_get_pixels (RETVAL); |
|
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182 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
|
|
183 | |
|
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184 | for (y = 0; y < h; y++) |
|
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185 | for (x = 0; x < w; x++) |
|
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186 | for (i = 0; i < bpp; i++) |
|
|
187 | dst[y * bpp + x * dstr + i] = src[x * bpp + y * sstr + i]; |
|
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188 | } |
|
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189 | OUTPUT: |
363 | OUTPUT: |
190 | RETVAL |
364 | RETVAL |
191 | |
365 | |
|
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366 | const char * |
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367 | filetype (SV *image_data) |
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368 | CODE: |
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369 | { |
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370 | STRLEN data_len; |
|
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371 | U8 *data = SvPVbyte (image_data, data_len); |
|
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372 | |
|
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373 | if (data_len >= 20 |
|
|
374 | && data[0] == 0xff |
|
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375 | && data[1] == 0xd8 |
|
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376 | && data[2] == 0xff) |
|
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377 | RETVAL = "jpg"; |
|
|
378 | else if (data_len >= 12 |
|
|
379 | && data[ 0] == (U8)'R' |
|
|
380 | && data[ 1] == (U8)'I' |
|
|
381 | && data[ 2] == (U8)'F' |
|
|
382 | && data[ 3] == (U8)'F' |
|
|
383 | && data[ 8] == (U8)'W' |
|
|
384 | && data[ 9] == (U8)'E' |
|
|
385 | && data[10] == (U8)'B' |
|
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386 | && data[11] == (U8)'P') |
|
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387 | RETVAL = "webp"; |
|
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388 | else if (data_len >= 16 |
|
|
389 | && data[ 0] == 0x89 |
|
|
390 | && data[ 1] == (U8)'P' |
|
|
391 | && data[ 2] == (U8)'N' |
|
|
392 | && data[ 3] == (U8)'G' |
|
|
393 | && data[ 4] == 0x0d |
|
|
394 | && data[ 5] == 0x0a |
|
|
395 | && data[ 6] == 0x1a |
|
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396 | && data[ 7] == 0x0a) |
|
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397 | RETVAL = "png"; |
|
|
398 | else |
|
|
399 | RETVAL = "other"; |
|
|
400 | } |
|
|
401 | OUTPUT: |
|
|
402 | RETVAL |
|
|
403 | |
192 | GdkPixbuf_noinc * |
404 | GdkPixbuf_noinc * |
193 | flop (GdkPixbuf *pb) |
405 | decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
194 | CODE: |
406 | CODE: |
195 | { |
407 | { |
196 | int w = gdk_pixbuf_get_width (pb); |
408 | #if WEBP |
197 | int h = gdk_pixbuf_get_height (pb); |
409 | STRLEN data_size; |
198 | int bpp = gdk_pixbuf_get_n_channels (pb); |
410 | int alpha; |
|
|
411 | WebPData data; |
|
|
412 | WebPDemuxer *demux; |
|
|
413 | WebPIterator iter; |
|
|
414 | WebPDecoderConfig config; |
199 | int x, y, i; |
415 | int inw, inh; |
200 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
|
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201 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
|
|
202 | |
416 | |
|
|
417 | data.bytes = (uint8_t *)SvPVbyte (image_data, data_size); |
|
|
418 | data.size = data_size; |
|
|
419 | |
|
|
420 | perlinterp_release (); |
|
|
421 | |
|
|
422 | RETVAL = 0; |
|
|
423 | |
|
|
424 | if (!(demux = WebPDemux (&data))) |
|
|
425 | goto err_demux; |
|
|
426 | |
|
|
427 | if (!WebPDemuxGetFrame (demux, 1, &iter)) |
|
|
428 | goto err_iter; |
|
|
429 | |
|
|
430 | if (!WebPInitDecoderConfig (&config)) |
|
|
431 | goto err_iter; |
|
|
432 | |
|
|
433 | config.options.use_threads = 1; |
|
|
434 | |
|
|
435 | if (WebPGetFeatures (iter.fragment.bytes, iter.fragment.size, &config.input) != VP8_STATUS_OK) |
|
|
436 | goto err_iter; |
|
|
437 | |
|
|
438 | inw = config.input.width; |
|
|
439 | inh = config.input.height; |
|
|
440 | |
|
|
441 | if (thumbnail) |
|
|
442 | { |
|
|
443 | if (inw * ih > inh * iw) |
|
|
444 | ih = (iw * inh + inw - 1) / inw; |
|
|
445 | else |
|
|
446 | iw = (ih * inw + inh - 1) / inh; |
|
|
447 | |
|
|
448 | config.options.bypass_filtering = 1; |
|
|
449 | config.options.no_fancy_upsampling = 1; |
|
|
450 | |
|
|
451 | config.options.use_scaling = 1; |
|
|
452 | config.options.scaled_width = iw; |
|
|
453 | config.options.scaled_height = ih; |
|
|
454 | } |
|
|
455 | else |
|
|
456 | { |
|
|
457 | iw = inw; |
|
|
458 | ih = inh; |
|
|
459 | } |
|
|
460 | |
|
|
461 | alpha = !!config.input.has_alpha; |
|
|
462 | |
203 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h); |
463 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, alpha, 8, iw, ih); |
|
|
464 | if (!RETVAL) |
|
|
465 | goto err_iter; |
204 | |
466 | |
205 | dst = gdk_pixbuf_get_pixels (RETVAL); |
467 | config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB; |
|
|
468 | config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL); |
206 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
469 | config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL); |
|
|
470 | config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL); |
|
|
471 | config.output.is_external_memory = 1; |
207 | |
472 | |
208 | for (y = 0; y < h; y++) |
473 | if (WebPDecode (iter.fragment.bytes, iter.fragment.size, &config) != VP8_STATUS_OK) |
209 | for (x = 0; x < w; x++) |
474 | { |
210 | for (i = 0; i < bpp; i++) |
475 | g_object_unref (RETVAL); |
211 | dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i]; |
476 | RETVAL = 0; |
|
|
477 | goto err_iter; |
|
|
478 | } |
|
|
479 | |
|
|
480 | err_iter: |
|
|
481 | WebPDemuxReleaseIterator (&iter); |
|
|
482 | err_demux: |
|
|
483 | WebPDemuxDelete (demux); |
|
|
484 | |
|
|
485 | perlinterp_acquire (); |
|
|
486 | #else |
|
|
487 | croak ("load_webp: webp not enabled at compile time"); |
|
|
488 | #endif |
212 | } |
489 | } |
213 | OUTPUT: |
490 | OUTPUT: |
214 | RETVAL |
491 | RETVAL |
215 | |
492 | |
216 | GdkPixbuf_noinc * |
493 | GdkPixbuf_noinc * |
217 | load_jpeg (SV *path, int thumbnail=0) |
494 | decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
218 | CODE: |
495 | CODE: |
219 | { |
496 | { |
220 | struct jpeg_decompress_struct cinfo; |
497 | struct jpeg_decompress_struct cinfo; |
221 | struct jpg_err_mgr jerr; |
498 | struct jpg_err_mgr jerr; |
222 | guchar *data; |
|
|
223 | int rs; |
499 | int rs; |
224 | FILE *fp; |
|
|
225 | volatile GdkPixbuf *pb = 0; |
500 | volatile GdkPixbuf *pb = 0; |
226 | gchar *filename; |
501 | STRLEN data_len; |
|
|
502 | guchar *data = SvPVbyte (image_data, data_len); |
227 | |
503 | |
228 | RETVAL = 0; |
504 | RETVAL = 0; |
229 | |
505 | |
230 | filename = g_filename_from_utf8 (SvPVutf8_nolen (path), -1, 0, 0, 0); |
506 | perlinterp_release (); |
231 | fp = fopen (filename, "rb"); |
|
|
232 | g_free (filename); |
|
|
233 | |
|
|
234 | if (!fp) |
|
|
235 | XSRETURN_UNDEF; |
|
|
236 | |
507 | |
237 | cinfo.err = jpeg_std_error (&jerr.err); |
508 | cinfo.err = jpeg_std_error (&jerr.err); |
238 | |
509 | |
239 | jerr.err.error_exit = cv_error_exit; |
510 | jerr.err.error_exit = cv_error_exit; |
240 | jerr.err.output_message = cv_error_output; |
511 | jerr.err.output_message = cv_error_output; |
241 | |
512 | |
242 | if ((rs = setjmp (jerr.setjmp_buffer))) |
513 | if ((rs = setjmp (jerr.setjmp_buffer))) |
243 | { |
514 | { |
244 | fclose (fp); |
|
|
245 | jpeg_destroy_decompress (&cinfo); |
515 | jpeg_destroy_decompress (&cinfo); |
246 | |
516 | |
247 | if (pb) |
517 | if (pb) |
248 | g_object_unref ((gpointer)pb); |
518 | g_object_unref ((gpointer)pb); |
249 | |
519 | |
|
|
520 | perlinterp_acquire (); |
250 | XSRETURN_UNDEF; |
521 | XSRETURN_UNDEF; |
251 | } |
522 | } |
252 | |
523 | |
253 | jpeg_create_decompress (&cinfo); |
524 | jpeg_create_decompress (&cinfo); |
|
|
525 | cv_jpeg_mem_src (&cinfo, data, data_len); |
254 | |
526 | |
255 | jpeg_stdio_src (&cinfo, fp); |
|
|
256 | jpeg_read_header (&cinfo, TRUE); |
527 | jpeg_read_header (&cinfo, TRUE); |
257 | |
528 | |
258 | cinfo.dct_method = JDCT_DEFAULT; |
529 | cinfo.dct_method = JDCT_DEFAULT; |
259 | cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ |
530 | cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ |
260 | cinfo.do_block_smoothing = FALSE; |
531 | cinfo.do_block_smoothing = FALSE; |
… | |
… | |
270 | { |
541 | { |
271 | cinfo.dct_method = JDCT_FASTEST; |
542 | cinfo.dct_method = JDCT_FASTEST; |
272 | cinfo.do_fancy_upsampling = FALSE; |
543 | cinfo.do_fancy_upsampling = FALSE; |
273 | |
544 | |
274 | while (cinfo.scale_denom < 8 |
545 | while (cinfo.scale_denom < 8 |
275 | && cinfo.output_width >= IW*4 |
546 | && cinfo.output_width >= iw*4 |
276 | && cinfo.output_height >= IH*4) |
547 | && cinfo.output_height >= ih*4) |
277 | { |
548 | { |
278 | cinfo.scale_denom <<= 1; |
549 | cinfo.scale_denom <<= 1; |
279 | jpeg_calc_output_dimensions (&cinfo); |
550 | jpeg_calc_output_dimensions (&cinfo); |
280 | } |
551 | } |
281 | } |
552 | } |
282 | |
553 | |
|
|
554 | if (cinfo.output_components != 3) |
|
|
555 | longjmp (jerr.setjmp_buffer, 3); |
|
|
556 | |
|
|
557 | if (cinfo.jpeg_color_space == JCS_YCCK || cinfo.jpeg_color_space == JCS_CMYK) |
|
|
558 | { |
|
|
559 | cinfo.out_color_space = JCS_CMYK; |
|
|
560 | cinfo.output_components = 4; |
|
|
561 | } |
|
|
562 | |
283 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height); |
563 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, cinfo.output_components == 4, 8, cinfo.output_width, cinfo.output_height); |
284 | if (!RETVAL) |
564 | if (!RETVAL) |
285 | longjmp (jerr.setjmp_buffer, 2); |
565 | longjmp (jerr.setjmp_buffer, 2); |
286 | |
566 | |
287 | data = gdk_pixbuf_get_pixels (RETVAL); |
567 | data = gdk_pixbuf_get_pixels (RETVAL); |
288 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
568 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
289 | |
|
|
290 | if (cinfo.output_components != 3) |
|
|
291 | longjmp (jerr.setjmp_buffer, 3); |
|
|
292 | |
569 | |
293 | jpeg_start_decompress (&cinfo); |
570 | jpeg_start_decompress (&cinfo); |
294 | |
571 | |
295 | while (cinfo.output_scanline < cinfo.output_height) |
572 | while (cinfo.output_scanline < cinfo.output_height) |
296 | { |
573 | { |
… | |
… | |
303 | rp [3] = (guchar *)rp [2] + rs; |
580 | rp [3] = (guchar *)rp [2] + rs; |
304 | |
581 | |
305 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
582 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
306 | } |
583 | } |
307 | |
584 | |
|
|
585 | if (cinfo.out_color_space == JCS_CMYK) |
|
|
586 | { |
|
|
587 | guchar *end = data + cinfo.output_height * rs; |
|
|
588 | |
|
|
589 | while (data < end) |
|
|
590 | { |
|
|
591 | U32 c = data [0]; |
|
|
592 | U32 m = data [1]; |
|
|
593 | U32 y = data [2]; |
|
|
594 | U32 k = data [3]; |
|
|
595 | |
|
|
596 | if (0) |
|
|
597 | if (cinfo.Adobe_transform == 2) |
|
|
598 | { |
|
|
599 | c ^= 0xff; |
|
|
600 | m ^= 0xff; |
|
|
601 | y ^= 0xff; |
|
|
602 | k ^= 0xff; |
|
|
603 | } |
|
|
604 | |
|
|
605 | data [0] = (c * k + 0x80) / 0xff; |
|
|
606 | data [1] = (m * k + 0x80) / 0xff; |
|
|
607 | data [2] = (y * k + 0x80) / 0xff; |
|
|
608 | data [3] = 0xff; |
|
|
609 | |
|
|
610 | data += 4; |
|
|
611 | } |
|
|
612 | } |
|
|
613 | |
308 | jpeg_finish_decompress (&cinfo); |
614 | jpeg_finish_decompress (&cinfo); |
309 | fclose (fp); |
|
|
310 | jpeg_destroy_decompress (&cinfo); |
615 | jpeg_destroy_decompress (&cinfo); |
|
|
616 | perlinterp_acquire (); |
311 | } |
617 | } |
312 | OUTPUT: |
618 | OUTPUT: |
313 | RETVAL |
619 | RETVAL |
314 | |
620 | |
|
|
621 | void |
|
|
622 | compare (GdkPixbuf *a, GdkPixbuf *b) |
|
|
623 | PPCODE: |
|
|
624 | perlinterp_release (); |
|
|
625 | { |
|
|
626 | int w = gdk_pixbuf_get_width (a); |
|
|
627 | int h = gdk_pixbuf_get_height (a); |
|
|
628 | |
|
|
629 | int sa = gdk_pixbuf_get_rowstride (a); |
|
|
630 | int sb = gdk_pixbuf_get_rowstride (b); |
|
|
631 | |
|
|
632 | guchar *pa = gdk_pixbuf_get_pixels (a); |
|
|
633 | guchar *pb = gdk_pixbuf_get_pixels (b); |
|
|
634 | |
|
|
635 | int x, y; |
|
|
636 | |
|
|
637 | assert (w == gdk_pixbuf_get_width (b)); |
|
|
638 | assert (h == gdk_pixbuf_get_height (b)); |
|
|
639 | |
|
|
640 | assert (gdk_pixbuf_get_n_channels (a) == 3); |
|
|
641 | assert (gdk_pixbuf_get_n_channels (b) == 3); |
|
|
642 | |
|
|
643 | double diff = 0.; |
|
|
644 | int peak = 0; |
|
|
645 | |
|
|
646 | if (w && h) |
|
|
647 | for (y = 0; y < h; y++) |
|
|
648 | { |
|
|
649 | guchar *pa_ = pa + y * sa; |
|
|
650 | guchar *pb_ = pb + y * sb; |
|
|
651 | |
|
|
652 | for (x = 0; x < w; x++) |
|
|
653 | { |
|
|
654 | int d; |
|
|
655 | |
|
|
656 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
657 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
658 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
659 | } |
|
|
660 | } |
|
|
661 | |
|
|
662 | perlinterp_acquire (); |
|
|
663 | |
|
|
664 | EXTEND (SP, 2); |
|
|
665 | PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); |
|
|
666 | PUSHs (sv_2mortal (newSVnv (peak / 255.))); |
|
|
667 | } |
|
|
668 | |
315 | ############################################################################# |
669 | ############################################################################# |
316 | |
670 | |
317 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
671 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
|
|
672 | |
|
|
673 | # currently only works for filenames (octet strings) |
318 | |
674 | |
319 | SV * |
675 | SV * |
320 | foldcase (SV *pathsv) |
676 | foldcase (SV *pathsv) |
321 | PROTOTYPE: $ |
677 | PROTOTYPE: $ |
322 | CODE: |
678 | CODE: |
323 | { |
679 | { |
324 | STRLEN plen; |
680 | STRLEN plen; |
325 | U8 *path = (U8 *)SvPVutf8 (pathsv, plen); |
681 | U8 *path = (U8 *)SvPV (pathsv, plen); |
326 | U8 *pend = path + plen; |
682 | U8 *pend = path + plen; |
327 | U8 dst [plen * 6 * 3], *dstp = dst; |
683 | U8 dst [plen * 6 * 3], *dstp = dst; |
328 | |
684 | |
329 | while (path < pend) |
685 | while (path < pend) |
330 | { |
686 | { |
331 | U8 ch = *path; |
687 | U8 ch = *path; |
332 | |
688 | |
333 | if (ch >= 'a' && ch <= 'z') |
689 | if (ch >= 'a' && ch <= 'z') |
334 | *dstp++ = *path++; |
690 | *dstp++ = *path++; |
|
|
691 | else if (ch >= 'A' && ch <= 'Z') |
|
|
692 | *dstp++ = *path++ + ('a' - 'A'); |
335 | else if (ch >= '0' && ch <= '9') |
693 | else if (ch >= '0' && ch <= '9') |
336 | { |
694 | { |
337 | STRLEN el, nl = 0; |
695 | STRLEN el, nl = 0; |
338 | while (*path >= '0' && *path <= '9' && path < pend) |
696 | while (*path >= '0' && *path <= '9' && path < pend) |
339 | path++, nl++; |
697 | path++, nl++; |
… | |
… | |
342 | *dstp++ = '0'; |
700 | *dstp++ = '0'; |
343 | |
701 | |
344 | memcpy (dstp, path - nl, nl); |
702 | memcpy (dstp, path - nl, nl); |
345 | dstp += nl; |
703 | dstp += nl; |
346 | } |
704 | } |
|
|
705 | else |
|
|
706 | *dstp++ = *path++; |
|
|
707 | #if 0 |
347 | else |
708 | else |
348 | { |
709 | { |
349 | STRLEN cl; |
710 | STRLEN cl; |
350 | to_utf8_fold (path, dstp, &cl); |
711 | to_utf8_fold (path, dstp, &cl); |
351 | dstp += cl; |
712 | dstp += cl; |
352 | path += is_utf8_char (path); |
713 | path += is_utf8_char (path); |
353 | } |
714 | } |
|
|
715 | #endif |
354 | } |
716 | } |
355 | |
717 | |
356 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
718 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
357 | } |
719 | } |
358 | OUTPUT: |
720 | OUTPUT: |
… | |
… | |
383 | } |
745 | } |
384 | } |
746 | } |
385 | OUTPUT: |
747 | OUTPUT: |
386 | RETVAL |
748 | RETVAL |
387 | |
749 | |
|
|
750 | ############################################################################# |
|
|
751 | |
|
|
752 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
|
|
753 | |
|
|
754 | void |
|
|
755 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
|
|
756 | CODE: |
|
|
757 | { |
|
|
758 | int w = gdk_pixbuf_get_width (pb); |
|
|
759 | int h = gdk_pixbuf_get_height (pb); |
|
|
760 | int x, y, i; |
|
|
761 | guchar *dst; |
|
|
762 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
763 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
764 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
765 | |
|
|
766 | a85_init (); |
|
|
767 | |
|
|
768 | for (y = 0; y < h; y++) |
|
|
769 | for (x = 0; x < w; x++) |
|
|
770 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
771 | a85_push (fp, src [x * bpp + y * sstr + i]); |
|
|
772 | |
|
|
773 | a85_finish (fp); |
|
|
774 | } |
|
|
775 | |
|
|
776 | void |
|
|
777 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
|
|
778 | CODE: |
|
|
779 | { |
|
|
780 | int w = gdk_pixbuf_get_width (pb); |
|
|
781 | int h = gdk_pixbuf_get_height (pb); |
|
|
782 | int x, y, i; |
|
|
783 | guchar *dst; |
|
|
784 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
785 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
786 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
787 | |
|
|
788 | for (y = 0; y < h; y++) |
|
|
789 | for (x = 0; x < w; x++) |
|
|
790 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
791 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
|
|
792 | } |
|
|
793 | |
|
|
794 | ############################################################################# |
|
|
795 | |
|
|
796 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
|
|
797 | |
388 | SV * |
798 | SV * |
389 | pb_to_p7 (GdkPixbuf *pb) |
799 | pb_to_hv84 (GdkPixbuf *pb) |
390 | CODE: |
800 | CODE: |
391 | { |
801 | { |
392 | int w = gdk_pixbuf_get_width (pb); |
802 | int w = gdk_pixbuf_get_width (pb); |
393 | int h = gdk_pixbuf_get_height (pb); |
803 | int h = gdk_pixbuf_get_height (pb); |
394 | int x, y; |
804 | int x, y; |
395 | guchar *dst; |
805 | guchar *dst; |
396 | int bpp = gdk_pixbuf_get_n_channels (pb); |
806 | int bpp = gdk_pixbuf_get_n_channels (pb); |
397 | guchar *src = gdk_pixbuf_get_pixels (pb); |
807 | guchar *src = gdk_pixbuf_get_pixels (pb); |
398 | int sstr = gdk_pixbuf_get_rowstride (pb); |
808 | int sstr = gdk_pixbuf_get_rowstride (pb); |
399 | int Er[IW], Eg[IW], Eb[IW]; |
|
|
400 | int seed = 77; |
|
|
401 | |
|
|
402 | RETVAL = newSV (w * h); |
|
|
403 | SvPOK_only (RETVAL); |
|
|
404 | SvCUR_set (RETVAL, w * h); |
|
|
405 | |
|
|
406 | dst = (guchar *)SvPVX (RETVAL); |
|
|
407 | |
|
|
408 | memset (Er, 0, sizeof (int) * IW); |
|
|
409 | memset (Eg, 0, sizeof (int) * IW); |
|
|
410 | memset (Eb, 0, sizeof (int) * IW); |
|
|
411 | |
|
|
412 | /* some primitive error distribution + random dithering */ |
|
|
413 | |
|
|
414 | for (y = 0; y < h; y++) |
|
|
415 | { |
|
|
416 | int er = 0, eg = 0, eb = 0; |
|
|
417 | |
|
|
418 | for (x = 0; x < w; x++) |
|
|
419 | { |
|
|
420 | int r, g, b; |
|
|
421 | guchar *p = src + x * bpp + y * sstr; |
|
|
422 | |
|
|
423 | r = ((p[0] + er + Er[x]) * 7 + (RAND & 127) + 64) / 255; |
|
|
424 | g = ((p[1] + eg + Eg[x]) * 7 + (RAND & 127) + 64) / 255; |
|
|
425 | b = ((p[2] + eb + Eb[x]) * 3 + (RAND & 127) + 64) / 255; |
|
|
426 | |
|
|
427 | r = r > 7 ? 7 : r < 0 ? 0 : r; |
|
|
428 | g = g > 7 ? 7 : g < 0 ? 0 : g; |
|
|
429 | b = b > 3 ? 3 : b < 0 ? 0 : b; |
|
|
430 | |
|
|
431 | er += p[0] - (r * 255 + 4) / 7; |
|
|
432 | eg += p[1] - (g * 255 + 4) / 7; |
|
|
433 | eb += p[2] - (b * 255 + 2) / 3; |
|
|
434 | |
|
|
435 | Er[x] = er >> 1; er -= (er + 1) >> 1; |
|
|
436 | Eg[x] = eg >> 1; eg -= (eg + 1) >> 1; |
|
|
437 | Eb[x] = eb >> 1; eb -= (eb + 1) >> 1; |
|
|
438 | |
|
|
439 | *dst++ = r << 5 | g << 2 | b; |
|
|
440 | } |
|
|
441 | } |
|
|
442 | } |
|
|
443 | OUTPUT: |
|
|
444 | RETVAL |
|
|
445 | |
|
|
446 | ############################################################################# |
|
|
447 | |
|
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448 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
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449 | |
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450 | void |
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451 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
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452 | CODE: |
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453 | { |
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454 | int w = gdk_pixbuf_get_width (pb); |
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455 | int h = gdk_pixbuf_get_height (pb); |
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456 | int x, y, i; |
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457 | guchar *dst; |
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458 | int bpp = gdk_pixbuf_get_n_channels (pb); |
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459 | guchar *src = gdk_pixbuf_get_pixels (pb); |
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460 | int sstr = gdk_pixbuf_get_rowstride (pb); |
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461 | |
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462 | a85_init (); |
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463 | |
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464 | for (y = 0; y < h; y++) |
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465 | for (x = 0; x < w; x++) |
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466 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
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467 | a85_push (fp, src [x * bpp + y * sstr + i]); |
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468 | |
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469 | a85_finish (fp); |
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470 | } |
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471 | |
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472 | void |
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473 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
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474 | CODE: |
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475 | { |
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476 | int w = gdk_pixbuf_get_width (pb); |
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477 | int h = gdk_pixbuf_get_height (pb); |
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478 | int x, y, i; |
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479 | guchar *dst; |
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480 | int bpp = gdk_pixbuf_get_n_channels (pb); |
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481 | guchar *src = gdk_pixbuf_get_pixels (pb); |
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482 | int sstr = gdk_pixbuf_get_rowstride (pb); |
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483 | |
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484 | for (y = 0; y < h; y++) |
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485 | for (x = 0; x < w; x++) |
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486 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
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487 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
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488 | } |
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489 | |
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490 | ############################################################################# |
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491 | |
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492 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
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493 | |
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494 | SV * |
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495 | pb_to_hv84 (GdkPixbuf *pb) |
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496 | CODE: |
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497 | { |
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498 | int w = gdk_pixbuf_get_width (pb); |
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499 | int h = gdk_pixbuf_get_height (pb); |
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500 | int x, y; |
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501 | guchar *dst; |
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502 | int bpp = gdk_pixbuf_get_n_channels (pb); |
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503 | guchar *src = gdk_pixbuf_get_pixels (pb); |
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504 | int sstr = gdk_pixbuf_get_rowstride (pb); |
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505 | |
809 | |
506 | RETVAL = newSV (6 * 8 * 12 / 8); |
810 | RETVAL = newSV (6 * 8 * 12 / 8); |
507 | SvPOK_only (RETVAL); |
811 | SvPOK_only (RETVAL); |
508 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
812 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
509 | |
813 | |
… | |
… | |
578 | ############################################################################# |
882 | ############################################################################# |
579 | |
883 | |
580 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
884 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
581 | |
885 | |
582 | SV * |
886 | SV * |
583 | make_histograms (SV *ar) |
887 | extract_features (SV *ar) |
584 | CODE: |
888 | CODE: |
585 | { |
889 | { |
586 | int i; |
890 | int i; |
587 | AV *av, *result; |
891 | AV *av, *result; |
588 | |
892 | |
589 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
893 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
590 | croak ("Not an array ref as first argument to make_histogram"); |
894 | croak ("Not an array ref as first argument to extract_features"); |
591 | |
895 | |
592 | av = (AV *) SvRV (ar); |
896 | av = (AV *) SvRV (ar); |
593 | result = newAV (); |
897 | result = newAV (); |
594 | |
898 | |
595 | for (i = 0; i <= av_len (av); ++i) |
899 | for (i = 0; i <= av_len (av); ++i) |
596 | { |
900 | { |
597 | const int HISTSIZE = 64; |
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598 | |
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599 | int j; |
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600 | SV *sv = *av_fetch (av, i, 1); |
901 | SV *sv = *av_fetch (av, i, 1); |
601 | STRLEN len; |
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602 | char *buf = SvPVbyte (sv, len); |
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603 | |
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604 | int tmphist[HISTSIZE]; |
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605 | float *hist; |
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606 | |
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607 | SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); |
902 | SV *histsv = newSV (9 * sizeof (float) + 1); |
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903 | |
608 | SvPOK_on (histsv); |
904 | SvPOK_on (histsv); |
609 | SvCUR_set (histsv, HISTSIZE * sizeof (float)); |
905 | SvCUR_set (histsv, 9 * sizeof (float)); |
610 | hist = (float *)SvPVX (histsv); |
906 | float *hist = (float *)SvPVX (histsv); |
611 | |
907 | |
612 | Zero (tmphist, sizeof (tmphist), char); |
908 | struct feature f_h, f_s, f_v; |
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909 | feature_init (&f_h); |
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910 | feature_init (&f_s); |
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|
911 | feature_init (&f_v); |
613 | |
912 | |
614 | for (j = len; j--; ) |
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|
615 | { |
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|
616 | unsigned int idx |
|
|
617 | = ((*buf & 0xc0) >> 2) |
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|
618 | | ((*buf & 0x18) >> 1) |
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|
619 | | (*buf & 0x03); |
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|
620 | |
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621 | ++tmphist[idx]; |
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622 | ++buf; |
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|
623 | } |
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|
624 | |
913 | { |
625 | for (j = 0; j < HISTSIZE; ++j) |
914 | STRLEN len; |
626 | hist[j] = (float)tmphist[j] / (len + 1e-30); |
915 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
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916 | while (len >= 3) |
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917 | { |
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|
918 | unsigned int r, g, b, h, s, v; |
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|
919 | r = *buf++; g = *buf++; b = *buf++; |
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|
920 | rgb_to_hsv (r, g, b, &h, &s, &v); |
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921 | |
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922 | feature_update_pass_1 (&f_h, h); |
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|
923 | feature_update_pass_1 (&f_s, s); |
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924 | feature_update_pass_1 (&f_v, v); |
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|
925 | |
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926 | len -= 3; |
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|
927 | } |
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|
928 | |
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|
929 | feature_finish_pass_1 (&f_h); |
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930 | feature_finish_pass_1 (&f_s); |
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|
931 | feature_finish_pass_1 (&f_v); |
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932 | } |
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|
933 | |
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|
934 | { |
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|
935 | STRLEN len; |
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936 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
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937 | while (len >= 3) |
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938 | { |
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939 | unsigned int r, g, b, h, s, v; |
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|
940 | r = *buf++; g = *buf++; b = *buf++; |
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|
941 | rgb_to_hsv (r, g, b, &h, &s, &v); |
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942 | |
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|
943 | feature_update_pass_2 (&f_h, h); |
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|
944 | feature_update_pass_2 (&f_s, s); |
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|
945 | feature_update_pass_2 (&f_v, v); |
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|
946 | |
|
|
947 | len -= 3; |
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|
948 | } |
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|
949 | |
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|
950 | feature_finish_pass_2 (&f_h); |
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|
951 | feature_finish_pass_2 (&f_s); |
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|
952 | feature_finish_pass_2 (&f_v); |
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|
953 | } |
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|
954 | |
|
|
955 | hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.; |
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|
956 | hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ; |
|
|
957 | hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5; |
627 | |
958 | |
628 | av_push (result, histsv); |
959 | av_push (result, histsv); |
629 | } |
960 | } |
630 | |
961 | |
631 | RETVAL = newRV_noinc ((SV *)result); |
962 | RETVAL = newRV_noinc ((SV *)result); |
632 | } |
963 | } |
633 | OUTPUT: |
964 | OUTPUT: |
634 | RETVAL |
965 | RETVAL |
635 | |
966 | |
636 | |
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