… | |
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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 | #if JXL |
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30 | #include <jxl/decode.h> |
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31 | #include "jxl/thread_parallel_runner.h" |
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32 | #endif |
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33 | |
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34 | #include "perlmulticore.h" |
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35 | |
16 | #define IW 80 /* MUST match Schnauer.pm! */ |
36 | #define IW 80 /* MUST match Schnauzer.pm! */ |
17 | #define IH 60 /* MUST match Schnauer.pm! */ |
37 | #define IH 60 /* MUST match Schnauzer.pm! */ |
18 | |
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19 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
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20 | |
38 | |
21 | #define LINELENGTH 240 |
39 | #define LINELENGTH 240 |
22 | |
40 | |
23 | #define ELLIPSIS "\xe2\x80\xa6" |
41 | #define ELLIPSIS "\xe2\x80\xa6" |
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42 | |
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43 | typedef char *octet_string; |
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44 | |
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45 | static magic_t magic_cookie[2]; /* !mime, mime */ |
24 | |
46 | |
25 | struct jpg_err_mgr |
47 | struct jpg_err_mgr |
26 | { |
48 | { |
27 | struct jpeg_error_mgr err; |
49 | struct jpeg_error_mgr err; |
28 | jmp_buf setjmp_buffer; |
50 | jmp_buf setjmp_buffer; |
29 | }; |
51 | }; |
30 | |
52 | |
31 | static void |
53 | static void |
32 | cv_error_exit (j_common_ptr cinfo) |
54 | cv_error_exit (j_common_ptr cinfo) |
33 | { |
55 | { |
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56 | cinfo->err->output_message (cinfo); |
34 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
57 | longjmp (((struct jpg_err_mgr *)cinfo->err)->setjmp_buffer, 99); |
35 | } |
58 | } |
36 | |
59 | |
37 | static void |
60 | static void |
38 | cv_error_output (j_common_ptr cinfo) |
61 | cv_error_output (j_common_ptr cinfo) |
39 | { |
62 | { |
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63 | char msg[JMSG_LENGTH_MAX]; |
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64 | |
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65 | cinfo->err->format_message (cinfo, msg); |
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66 | |
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67 | fprintf (stderr, "JPEG decoding error: %s\n", msg); |
40 | return; |
68 | return; |
41 | } |
69 | } |
42 | |
70 | |
43 | static void |
71 | static void |
44 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
72 | rgb_to_hsv (unsigned int r, unsigned int g, unsigned int b, |
… | |
… | |
65 | |
93 | |
66 | *h &= 255; |
94 | *h &= 255; |
67 | } |
95 | } |
68 | } |
96 | } |
69 | |
97 | |
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98 | struct feature { |
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99 | float v1, v2, v3; // mean, square, cube |
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100 | int n; |
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101 | }; |
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102 | |
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103 | static void |
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104 | feature_init (struct feature *f) |
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105 | { |
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106 | f->v1 = 0.; |
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107 | f->v2 = 0.; |
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108 | f->v3 = 0.; |
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109 | f->n = 0; |
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110 | } |
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111 | |
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112 | // didn't find an algorithm to neatly do mean, variance and skew in one pass. |
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113 | // elmex ist schuld. |
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114 | static void |
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115 | feature_update_pass_1 (struct feature *f, unsigned int v) |
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116 | { |
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117 | f->v1 += v; |
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118 | f->n += 1; |
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119 | } |
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120 | |
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121 | static void |
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122 | feature_finish_pass_1 (struct feature *f) |
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123 | { |
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124 | if (f->n < 1) |
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125 | return; |
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126 | |
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127 | f->v1 /= f->n; |
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128 | } |
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129 | |
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130 | static void |
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131 | feature_update_pass_2 (struct feature *f, unsigned int v) |
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132 | { |
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133 | float d = v - f->v1; |
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134 | |
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135 | f->v2 += d * d; |
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136 | f->v3 += d * d * d; |
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137 | } |
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138 | |
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139 | static void |
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140 | feature_finish_pass_2 (struct feature *f) |
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141 | { |
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142 | if (f->n < 1) |
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143 | return; |
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144 | |
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145 | f->v2 /= f->n; |
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146 | f->v3 /= f->n; |
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147 | |
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148 | f->v1 /= 255.; |
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149 | f->v2 /= 255. * 255.; f->v2 = sqrtf (f->v2); |
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150 | f->v3 /= 255. * 255. * 255.; f->v3 = powf (fabsf (f->v3), 1./3.); |
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151 | } |
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152 | |
70 | static guint32 a85_val; |
153 | static guint32 a85_val; |
71 | static guint a85_cnt; |
154 | static guint a85_cnt; |
72 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
155 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
73 | |
156 | |
74 | static void |
157 | static void |
… | |
… | |
86 | if (!--a85_cnt) |
169 | if (!--a85_cnt) |
87 | { |
170 | { |
88 | a85_cnt = 4; |
171 | a85_cnt = 4; |
89 | if (a85_val) |
172 | if (a85_val) |
90 | { |
173 | { |
91 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
174 | a85_ptr[4] = (a85_val % 85) + 33; a85_val /= 85; |
92 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
175 | a85_ptr[3] = (a85_val % 85) + 33; a85_val /= 85; |
93 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
176 | a85_ptr[2] = (a85_val % 85) + 33; a85_val /= 85; |
94 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
177 | a85_ptr[1] = (a85_val % 85) + 33; a85_val /= 85; |
95 | a85_ptr[0] = (a85_val ) + 33; |
178 | a85_ptr[0] = (a85_val ) + 33; |
96 | |
179 | |
97 | a85_ptr += 5; |
180 | a85_ptr += 5; |
98 | } |
181 | } |
… | |
… | |
121 | |
204 | |
122 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
205 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
123 | } |
206 | } |
124 | |
207 | |
125 | ///////////////////////////////////////////////////////////////////////////// |
208 | ///////////////////////////////////////////////////////////////////////////// |
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209 | // memory source for libjpeg |
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210 | |
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211 | static void cv_ms_init (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 void cv_ms_term (j_decompress_ptr cinfo) |
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216 | { |
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217 | } |
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218 | |
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219 | static boolean cv_ms_fill (j_decompress_ptr cinfo) |
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220 | { |
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221 | // unexpected EOF, warn and generate fake EOI marker |
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222 | |
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223 | WARNMS (cinfo, JWRN_JPEG_EOF); |
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224 | |
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225 | struct jpeg_source_mgr *src = (struct jpeg_source_mgr *)cinfo->src; |
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226 | |
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227 | static const JOCTET eoi[] = { 0xFF, JPEG_EOI }; |
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228 | |
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229 | src->next_input_byte = eoi; |
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230 | src->bytes_in_buffer = sizeof (eoi); |
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231 | |
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232 | return TRUE; |
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233 | } |
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234 | |
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235 | static void cv_ms_skip (j_decompress_ptr cinfo, long num_bytes) |
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236 | { |
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237 | struct jpeg_source_mgr *src = (struct jpeg_source_mgr *)cinfo->src; |
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238 | |
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239 | src->next_input_byte += num_bytes; |
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240 | src->bytes_in_buffer -= num_bytes; |
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241 | } |
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242 | |
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243 | static void cv_jpeg_mem_src (j_decompress_ptr cinfo, void *buf, size_t buflen) |
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244 | { |
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245 | struct jpeg_source_mgr *src; |
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246 | |
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247 | if (!cinfo->src) |
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248 | cinfo->src = (struct jpeg_source_mgr *) |
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249 | (*cinfo->mem->alloc_small) ( |
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250 | (j_common_ptr) cinfo, JPOOL_PERMANENT, sizeof (struct jpeg_source_mgr) |
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251 | ); |
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252 | |
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253 | src = (struct jpeg_source_mgr *)cinfo->src; |
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254 | src->init_source = cv_ms_init; |
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255 | src->fill_input_buffer = cv_ms_fill; |
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256 | src->skip_input_data = cv_ms_skip; |
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257 | src->resync_to_restart = jpeg_resync_to_restart; |
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258 | src->term_source = cv_ms_term; |
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259 | src->next_input_byte = (JOCTET *)buf; |
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260 | src->bytes_in_buffer = buflen; |
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261 | } |
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262 | |
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263 | ///////////////////////////////////////////////////////////////////////////// |
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264 | |
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265 | /* great, the jpeg-xl reference implementaton requires us to parse bmff files */ |
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266 | |
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267 | struct bmff_box |
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268 | { |
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269 | char type[4]; |
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270 | const uint8_t *ptr; |
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271 | size_t size; |
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272 | }; |
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273 | |
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274 | static int |
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275 | bmff_parse_box (struct bmff_box *box, const uint8_t **next_in, size_t *avail_in) |
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276 | { |
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277 | if (*avail_in < 8) |
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278 | return 0; |
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279 | |
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280 | box->size = ((*next_in)[0] << 24) |
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281 | | ((*next_in)[1] << 16) |
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282 | | ((*next_in)[2] << 8) |
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283 | | ((*next_in)[3] ); |
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284 | |
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285 | if (box->size < 8) |
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286 | return 0; |
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287 | |
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288 | if (*avail_in < box->size) |
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289 | return 0; |
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290 | |
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291 | memcpy (box->type, *next_in + 4, 4); |
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292 | box->ptr = *next_in + 8; |
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293 | |
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294 | *next_in += box->size; |
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295 | *avail_in -= box->size; |
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296 | |
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297 | box->size -= 8; |
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298 | |
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299 | return 1; |
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300 | } |
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301 | |
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302 | ///////////////////////////////////////////////////////////////////////////// |
126 | |
303 | |
127 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
304 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
128 | |
305 | |
129 | PROTOTYPES: ENABLE |
306 | PROTOTYPES: ENABLE |
130 | |
307 | |
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308 | void |
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309 | _exit (int code) |
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310 | |
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311 | # calculate the common prefix length of two strings |
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312 | # missing function in perl. really :) |
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313 | int |
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314 | common_prefix_length (a, b) |
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315 | unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); |
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316 | unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); |
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317 | CODE: |
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318 | RETVAL = 0; |
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319 | |
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320 | while (*a == *b && *a) |
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321 | { |
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322 | RETVAL += (*a & 0xc0) != 0x80; |
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323 | a++, b++; |
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324 | } |
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325 | |
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326 | OUTPUT: |
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327 | RETVAL |
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328 | |
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329 | const char * |
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330 | magic (SV *path_or_data) |
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331 | ALIAS: |
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332 | magic = 0 |
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333 | magic_mime = 1 |
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334 | magic_buffer = 2 |
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335 | magic_buffer_mime = 3 |
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336 | CODE: |
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337 | { |
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338 | STRLEN len; |
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339 | char *data = SvPVbyte (path_or_data, len); |
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340 | |
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341 | if (!magic_cookie[0]) |
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342 | { |
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343 | magic_cookie[0] = magic_open (MAGIC_SYMLINK); |
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344 | magic_cookie[1] = magic_open (MAGIC_SYMLINK | MAGIC_MIME_TYPE); |
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345 | magic_load (magic_cookie[0], 0); |
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346 | magic_load (magic_cookie[1], 0); |
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347 | } |
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348 | |
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349 | perlinterp_release (); |
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350 | |
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351 | RETVAL = ix & 2 |
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352 | ? magic_buffer (magic_cookie[ix & 1], data, len) |
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353 | : magic_file (magic_cookie[ix & 1], data); |
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354 | |
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355 | perlinterp_acquire (); |
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356 | } |
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357 | OUTPUT: |
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358 | RETVAL |
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359 | |
131 | # missing in Gtk2 perl module |
360 | # missing/broken in Gtk2 perl module |
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361 | |
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362 | void |
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363 | gdk_window_clear_hints (GdkWindow *window) |
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364 | CODE: |
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365 | gdk_window_set_geometry_hints (window, 0, 0); |
132 | |
366 | |
133 | gboolean |
367 | gboolean |
134 | gdk_net_wm_supports (GdkAtom property) |
368 | gdk_net_wm_supports (GdkAtom property) |
135 | CODE: |
369 | CODE: |
136 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
370 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
… | |
… | |
142 | RETVAL |
376 | RETVAL |
143 | |
377 | |
144 | GdkPixbuf_noinc * |
378 | GdkPixbuf_noinc * |
145 | dealpha_expose (GdkPixbuf *pb) |
379 | dealpha_expose (GdkPixbuf *pb) |
146 | CODE: |
380 | CODE: |
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381 | perlinterp_release (); |
147 | { |
382 | { |
148 | int w = gdk_pixbuf_get_width (pb); |
383 | int w = gdk_pixbuf_get_width (pb); |
149 | int h = gdk_pixbuf_get_height (pb); |
384 | int h = gdk_pixbuf_get_height (pb); |
150 | int bpp = gdk_pixbuf_get_n_channels (pb); |
385 | int bpp = gdk_pixbuf_get_n_channels (pb); |
151 | int x, y, i; |
386 | int x, y, i; |
… | |
… | |
160 | for (x = 0; x < w; x++) |
395 | for (x = 0; x < w; x++) |
161 | for (y = 0; y < h; y++) |
396 | for (y = 0; y < h; y++) |
162 | for (i = 0; i < 3; i++) |
397 | for (i = 0; i < 3; i++) |
163 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
398 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
164 | } |
399 | } |
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400 | perlinterp_acquire (); |
165 | OUTPUT: |
401 | OUTPUT: |
166 | RETVAL |
402 | RETVAL |
167 | |
403 | |
168 | GdkPixbuf_noinc * |
404 | GdkPixbuf_noinc * |
169 | transpose (GdkPixbuf *pb) |
405 | rotate (GdkPixbuf *pb, int angle) |
170 | CODE: |
406 | CODE: |
171 | { |
407 | perlinterp_release (); |
172 | int w = gdk_pixbuf_get_width (pb); |
408 | if (angle < 0) |
173 | int h = gdk_pixbuf_get_height (pb); |
409 | angle += 360; |
174 | int bpp = gdk_pixbuf_get_n_channels (pb); |
410 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
175 | int x, y, i; |
411 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
176 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
412 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
177 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
413 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
178 | |
414 | : angle); |
179 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w); |
415 | perlinterp_acquire (); |
180 | |
|
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181 | dst = gdk_pixbuf_get_pixels (RETVAL); |
|
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182 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
|
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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++) |
|
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187 | dst[y * bpp + x * dstr + i] = src[x * bpp + y * sstr + i]; |
|
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188 | } |
|
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189 | OUTPUT: |
416 | OUTPUT: |
190 | RETVAL |
417 | RETVAL |
191 | |
418 | |
|
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419 | const char * |
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420 | filetype (SV *image_data) |
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421 | CODE: |
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422 | { |
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423 | STRLEN data_len; |
|
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424 | U8 *data = SvPVbyte (image_data, data_len); |
|
|
425 | static const unsigned char jxl_header[] = { |
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426 | 0, 0, 0, 0x0c, 0x4a, 0x58, 0x4c, 0x20, 0x0d, 0xa, 0x87, 0x0a |
|
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427 | }; |
|
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428 | |
|
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429 | if (data_len >= 20 |
|
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430 | && data[0] == 0xff |
|
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431 | && data[1] == 0xd8 |
|
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432 | && data[2] == 0xff) |
|
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433 | RETVAL = "image/jpeg"; |
|
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434 | else if (data_len >= 12 |
|
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435 | && data[ 0] == (U8)'R' |
|
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436 | && data[ 1] == (U8)'I' |
|
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437 | && data[ 2] == (U8)'F' |
|
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438 | && data[ 3] == (U8)'F' |
|
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439 | && data[ 8] == (U8)'W' |
|
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440 | && data[ 9] == (U8)'E' |
|
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441 | && data[10] == (U8)'B' |
|
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442 | && data[11] == (U8)'P') |
|
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443 | RETVAL = "image/webp"; |
|
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444 | else if (data_len >= 16 |
|
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445 | && data[ 0] == 0x89 |
|
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446 | && data[ 1] == (U8)'P' |
|
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447 | && data[ 2] == (U8)'N' |
|
|
448 | && data[ 3] == (U8)'G' |
|
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449 | && data[ 4] == 0x0d |
|
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450 | && data[ 5] == 0x0a |
|
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451 | && data[ 6] == 0x1a |
|
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452 | && data[ 7] == 0x0a) |
|
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453 | RETVAL = "image/png"; |
|
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454 | else if (data_len >= sizeof (jxl_header) && memcmp (data, jxl_header, sizeof (jxl_header)) == 0) |
|
|
455 | RETVAL = "image/jxl"; // todo: might want to use JxlSignatureCheck |
|
|
456 | else if (data_len >= 2 |
|
|
457 | && data[0] == 0xff |
|
|
458 | && data[1] == 0x0a) |
|
|
459 | RETVAL = "image/jxl"; |
|
|
460 | else if (data_len >= 13 |
|
|
461 | && data[0] == 'G' |
|
|
462 | && data[1] == 'I' |
|
|
463 | && data[2] == 'F' |
|
|
464 | && data[3] == '8' |
|
|
465 | //&& (data[4] == '7' || data[4] == '9') |
|
|
466 | && data[5] == 'a') |
|
|
467 | { |
|
|
468 | RETVAL = "image/gif"; |
|
|
469 | |
|
|
470 | // now see if its animated - we require the netscape application header for this |
|
|
471 | int ofs = 13; |
|
|
472 | |
|
|
473 | if (data[10] & 0x80) |
|
|
474 | ofs += (1 << ((data[10] & 7) + 1)) * 3; |
|
|
475 | |
|
|
476 | if (data_len >= ofs + 2 + 1 + 11) |
|
|
477 | { |
|
|
478 | |
|
|
479 | // skip a graphic control extension block. we assume |
|
|
480 | // there is at most one such block - while the NAB |
|
|
481 | // has to come firstz, some files do not obey this |
|
|
482 | if (data[ofs] == 0x21 && data[ofs + 1] == 0xf9) |
|
|
483 | ofs += 3 + data[ofs + 2] + 1; |
|
|
484 | |
|
|
485 | if (data_len >= ofs + 2 + 1 + 11) |
|
|
486 | if (!memcmp (data + ofs, "\x21\xff\x0bNETSCAPE2.0", sizeof ("\x21\xff\x0bNETSCAPE2.0") - 1)) |
|
|
487 | RETVAL = "video/gif"; |
|
|
488 | } |
|
|
489 | } |
|
|
490 | else if (data_len >= 0x8000 + 6 |
|
|
491 | && data[0x8000+0] == 0 |
|
|
492 | && data[0x8000+1] == (U8)'B' |
|
|
493 | && data[0x8000+2] == (U8)'E' |
|
|
494 | && data[0x8000+3] == (U8)'A' |
|
|
495 | && data[0x8000+4] == (U8)'0' |
|
|
496 | && data[0x8000+5] == (U8)'1') |
|
|
497 | RETVAL = "video/iso-bluray"; |
|
|
498 | else if (data_len >= 0x8000 + 6 |
|
|
499 | && data[0x8000+0] == 0 |
|
|
500 | && data[0x8000+1] == (U8)'C' |
|
|
501 | && data[0x8000+2] == (U8)'D' |
|
|
502 | && data[0x8000+3] == (U8)'0' |
|
|
503 | && data[0x8000+4] == (U8)'0' |
|
|
504 | && data[0x8000+5] == (U8)'1') |
|
|
505 | RETVAL = "video/iso9660"; |
|
|
506 | |
|
|
507 | else |
|
|
508 | XSRETURN_UNDEF; |
|
|
509 | } |
|
|
510 | OUTPUT: |
|
|
511 | RETVAL |
|
|
512 | |
192 | GdkPixbuf_noinc * |
513 | GdkPixbuf_noinc * |
193 | flop (GdkPixbuf *pb) |
514 | decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
194 | CODE: |
515 | CODE: |
195 | { |
516 | { |
196 | int w = gdk_pixbuf_get_width (pb); |
517 | #if WEBP |
197 | int h = gdk_pixbuf_get_height (pb); |
518 | STRLEN data_size; |
198 | int bpp = gdk_pixbuf_get_n_channels (pb); |
519 | int alpha; |
|
|
520 | WebPData data; |
|
|
521 | WebPDemuxer *demux; |
|
|
522 | WebPIterator iter; |
|
|
523 | WebPDecoderConfig config; |
199 | int x, y, i; |
524 | int inw, inh; |
200 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
|
|
201 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
|
|
202 | |
525 | |
|
|
526 | data.bytes = (uint8_t *)SvPVbyte (image_data, data_size); |
|
|
527 | data.size = data_size; |
|
|
528 | |
|
|
529 | perlinterp_release (); |
|
|
530 | |
|
|
531 | RETVAL = 0; |
|
|
532 | |
|
|
533 | if (!(demux = WebPDemux (&data))) |
|
|
534 | goto err_demux; |
|
|
535 | |
|
|
536 | if (!WebPDemuxGetFrame (demux, 1, &iter)) |
|
|
537 | goto err_iter; |
|
|
538 | |
|
|
539 | if (!WebPInitDecoderConfig (&config)) |
|
|
540 | goto err_iter; |
|
|
541 | |
|
|
542 | config.options.use_threads = 1; |
|
|
543 | |
|
|
544 | if (WebPGetFeatures (iter.fragment.bytes, iter.fragment.size, &config.input) != VP8_STATUS_OK) |
|
|
545 | goto err_iter; |
|
|
546 | |
|
|
547 | inw = config.input.width; |
|
|
548 | inh = config.input.height; |
|
|
549 | |
|
|
550 | if (thumbnail) |
|
|
551 | { |
|
|
552 | if (inw * ih > inh * iw) |
|
|
553 | ih = (iw * inh + inw - 1) / inw; |
|
|
554 | else |
|
|
555 | iw = (ih * inw + inh - 1) / inh; |
|
|
556 | |
|
|
557 | config.options.bypass_filtering = 1; |
|
|
558 | config.options.no_fancy_upsampling = 1; |
|
|
559 | |
|
|
560 | config.options.use_scaling = 1; |
|
|
561 | config.options.scaled_width = iw; |
|
|
562 | config.options.scaled_height = ih; |
|
|
563 | } |
|
|
564 | else |
|
|
565 | { |
|
|
566 | iw = inw; |
|
|
567 | ih = inh; |
|
|
568 | } |
|
|
569 | |
|
|
570 | alpha = !!config.input.has_alpha; |
|
|
571 | |
203 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h); |
572 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, alpha, 8, iw, ih); |
|
|
573 | if (!RETVAL) |
|
|
574 | goto err_iter; |
204 | |
575 | |
205 | dst = gdk_pixbuf_get_pixels (RETVAL); |
576 | config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB; |
|
|
577 | config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL); |
206 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
578 | config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL); |
|
|
579 | config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL); |
|
|
580 | config.output.is_external_memory = 1; |
207 | |
581 | |
208 | for (y = 0; y < h; y++) |
582 | if (WebPDecode (iter.fragment.bytes, iter.fragment.size, &config) != VP8_STATUS_OK) |
209 | for (x = 0; x < w; x++) |
583 | { |
210 | for (i = 0; i < bpp; i++) |
584 | g_object_unref (RETVAL); |
211 | dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i]; |
585 | RETVAL = 0; |
|
|
586 | goto err_iter; |
|
|
587 | } |
|
|
588 | |
|
|
589 | err_iter: |
|
|
590 | WebPDemuxReleaseIterator (&iter); |
|
|
591 | err_demux: |
|
|
592 | WebPDemuxDelete (demux); |
|
|
593 | |
|
|
594 | perlinterp_acquire (); |
|
|
595 | #else |
|
|
596 | croak ("load_webp: webp not enabled at compile time"); |
|
|
597 | #endif |
212 | } |
598 | } |
213 | OUTPUT: |
599 | OUTPUT: |
214 | RETVAL |
600 | RETVAL |
215 | |
601 | |
216 | GdkPixbuf_noinc * |
602 | GdkPixbuf_noinc * |
217 | load_jpeg (SV *path, int thumbnail=0) |
603 | decode_jxl (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
|
|
604 | CODE: |
|
|
605 | { |
|
|
606 | #if JXL |
|
|
607 | JxlDecoder *dec; |
|
|
608 | JxlBasicInfo info; |
|
|
609 | const uint8_t *next_in = (uint8_t *)SvPVbyte_nolen (image_data); |
|
|
610 | size_t avail_in = SvCUR (image_data); |
|
|
611 | const char *error = 0; |
|
|
612 | JxlDecoderStatus status; |
|
|
613 | static void *runner_cache; |
|
|
614 | void *runner = 0; |
|
|
615 | |
|
|
616 | RETVAL = 0; |
|
|
617 | |
|
|
618 | if (runner_cache) |
|
|
619 | runner = runner_cache; |
|
|
620 | else |
|
|
621 | runner = JxlThreadParallelRunnerCreate (0, JxlThreadParallelRunnerDefaultNumWorkerThreads ()); |
|
|
622 | |
|
|
623 | runner_cache = 0; |
|
|
624 | |
|
|
625 | perlinterp_release (); |
|
|
626 | |
|
|
627 | dec = JxlDecoderCreate (0); |
|
|
628 | |
|
|
629 | error = "JxlDecoderCreate failed"; |
|
|
630 | if (!dec) |
|
|
631 | goto done; |
|
|
632 | |
|
|
633 | status = JxlDecoderSetParallelRunner (dec, JxlThreadParallelRunner, runner); |
|
|
634 | error = "JxlDecoderSetParallelRunner failed"; |
|
|
635 | if (status != JXL_DEC_SUCCESS) |
|
|
636 | goto done; |
|
|
637 | |
|
|
638 | error = "JxlDecoderSubscribeEvents failed"; |
|
|
639 | status = JxlDecoderSubscribeEvents (dec, JXL_DEC_BASIC_INFO | JXL_DEC_FULL_IMAGE); |
|
|
640 | if (status != JXL_DEC_SUCCESS) |
|
|
641 | goto done; |
|
|
642 | |
|
|
643 | status = JxlDecoderSetInput (dec, next_in, avail_in); |
|
|
644 | error = "JxlDecoderSetInput failed"; |
|
|
645 | if (status != JXL_DEC_SUCCESS) |
|
|
646 | goto done; |
|
|
647 | |
|
|
648 | for (;;) |
|
|
649 | { |
|
|
650 | status = JxlDecoderProcessInput (dec); |
|
|
651 | |
|
|
652 | switch (status) |
|
|
653 | { |
|
|
654 | case JXL_DEC_FULL_IMAGE: |
|
|
655 | error = 0; |
|
|
656 | goto done; |
|
|
657 | |
|
|
658 | case JXL_DEC_ERROR: |
|
|
659 | error = "JxlDecoderProcessInput failed"; |
|
|
660 | goto done; |
|
|
661 | |
|
|
662 | case JXL_DEC_NEED_MORE_INPUT: |
|
|
663 | error = "incomplete file"; |
|
|
664 | goto done; |
|
|
665 | |
|
|
666 | case JXL_DEC_SUCCESS: |
|
|
667 | error = "incomplete decode"; |
|
|
668 | goto done; |
|
|
669 | |
|
|
670 | case JXL_DEC_BASIC_INFO: |
|
|
671 | { |
|
|
672 | status = JxlDecoderGetBasicInfo (dec, &info); |
|
|
673 | error = "JxlDecoderGetBasicInfo failed"; |
|
|
674 | if (status != JXL_DEC_SUCCESS) |
|
|
675 | goto done; |
|
|
676 | |
|
|
677 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!info.alpha_bits, 8, info.xsize, info.ysize); |
|
|
678 | error = "unable to allocate pixbuf"; |
|
|
679 | if (!RETVAL) |
|
|
680 | goto done; |
|
|
681 | |
|
|
682 | JxlPixelFormat format = { |
|
|
683 | info.alpha_bits ? 4 : 3, |
|
|
684 | JXL_TYPE_UINT8, |
|
|
685 | JXL_NATIVE_ENDIAN, |
|
|
686 | gdk_pixbuf_get_rowstride (RETVAL) |
|
|
687 | }; |
|
|
688 | |
|
|
689 | // cannot use gdk_pixbuf_get_byte_length because that does |
|
|
690 | // not return the size of the buffer, but the size of the buffer without |
|
|
691 | // the last padding bytes. the internal buffer is rowstride * ysize, |
|
|
692 | // and this is what the jxl decoder needs. none of this is documented |
|
|
693 | // in either library, of course. |
|
|
694 | |
|
|
695 | status = JxlDecoderSetImageOutBuffer ( |
|
|
696 | dec, |
|
|
697 | &format, |
|
|
698 | gdk_pixbuf_get_pixels (RETVAL), |
|
|
699 | gdk_pixbuf_get_rowstride (RETVAL) * info.ysize |
|
|
700 | ); |
|
|
701 | error = "JxlDecoderSetImageOutBuffer failed"; |
|
|
702 | if (status != JXL_DEC_SUCCESS) |
|
|
703 | goto done; |
|
|
704 | } |
|
|
705 | break; |
|
|
706 | |
|
|
707 | default: |
|
|
708 | error = "unexpected event"; |
|
|
709 | goto done; |
|
|
710 | } |
|
|
711 | } |
|
|
712 | |
|
|
713 | done: |
|
|
714 | if (dec) |
|
|
715 | JxlDecoderDestroy (dec); |
|
|
716 | |
|
|
717 | perlinterp_acquire (); |
|
|
718 | |
|
|
719 | if (runner_cache) |
|
|
720 | JxlThreadParallelRunnerDestroy (runner); |
|
|
721 | |
|
|
722 | runner_cache = runner; |
|
|
723 | |
|
|
724 | if (error) |
|
|
725 | { |
|
|
726 | if (RETVAL) |
|
|
727 | g_object_unref (RETVAL); |
|
|
728 | |
|
|
729 | croak ("load_jxl: %s (status %d)", error, status); |
|
|
730 | } |
|
|
731 | #else |
|
|
732 | croak ("load_jxl: jpeg-xl not enabled at compile time"); |
|
|
733 | #endif |
|
|
734 | } |
|
|
735 | OUTPUT: |
|
|
736 | RETVAL |
|
|
737 | |
|
|
738 | GdkPixbuf_noinc * |
|
|
739 | decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
218 | CODE: |
740 | CODE: |
219 | { |
741 | { |
220 | struct jpeg_decompress_struct cinfo; |
742 | struct jpeg_decompress_struct cinfo; |
221 | struct jpg_err_mgr jerr; |
743 | struct jpg_err_mgr jerr; |
222 | guchar *data; |
|
|
223 | int rs; |
744 | int rs; |
224 | FILE *fp; |
|
|
225 | volatile GdkPixbuf *pb = 0; |
745 | volatile GdkPixbuf *pb = 0; |
226 | gchar *filename; |
746 | STRLEN data_len; |
|
|
747 | guchar *data = SvPVbyte (image_data, data_len); |
227 | |
748 | |
228 | RETVAL = 0; |
749 | RETVAL = 0; |
229 | |
750 | |
230 | filename = g_filename_from_utf8 (SvPVutf8_nolen (path), -1, 0, 0, 0); |
751 | perlinterp_release (); |
231 | fp = fopen (filename, "rb"); |
|
|
232 | g_free (filename); |
|
|
233 | |
|
|
234 | if (!fp) |
|
|
235 | XSRETURN_UNDEF; |
|
|
236 | |
752 | |
237 | cinfo.err = jpeg_std_error (&jerr.err); |
753 | cinfo.err = jpeg_std_error (&jerr.err); |
238 | |
754 | |
239 | jerr.err.error_exit = cv_error_exit; |
755 | jerr.err.error_exit = cv_error_exit; |
240 | jerr.err.output_message = cv_error_output; |
756 | jerr.err.output_message = cv_error_output; |
241 | |
757 | |
242 | if ((rs = setjmp (jerr.setjmp_buffer))) |
758 | if ((rs = setjmp (jerr.setjmp_buffer))) |
243 | { |
759 | { |
244 | fclose (fp); |
|
|
245 | jpeg_destroy_decompress (&cinfo); |
760 | jpeg_destroy_decompress (&cinfo); |
246 | |
761 | |
247 | if (pb) |
762 | if (pb) |
248 | g_object_unref ((gpointer)pb); |
763 | g_object_unref ((gpointer)pb); |
249 | |
764 | |
|
|
765 | perlinterp_acquire (); |
250 | XSRETURN_UNDEF; |
766 | XSRETURN_UNDEF; |
251 | } |
767 | } |
252 | |
768 | |
|
|
769 | if (!data_len) |
|
|
770 | longjmp (jerr.setjmp_buffer, 4); |
|
|
771 | |
253 | jpeg_create_decompress (&cinfo); |
772 | jpeg_create_decompress (&cinfo); |
|
|
773 | cv_jpeg_mem_src (&cinfo, data, data_len); |
254 | |
774 | |
255 | jpeg_stdio_src (&cinfo, fp); |
|
|
256 | jpeg_read_header (&cinfo, TRUE); |
775 | jpeg_read_header (&cinfo, TRUE); |
257 | |
776 | |
258 | cinfo.dct_method = JDCT_DEFAULT; |
777 | cinfo.dct_method = JDCT_DEFAULT; |
259 | cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ |
778 | cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ |
260 | cinfo.do_block_smoothing = FALSE; |
779 | cinfo.do_block_smoothing = FALSE; |
… | |
… | |
270 | { |
789 | { |
271 | cinfo.dct_method = JDCT_FASTEST; |
790 | cinfo.dct_method = JDCT_FASTEST; |
272 | cinfo.do_fancy_upsampling = FALSE; |
791 | cinfo.do_fancy_upsampling = FALSE; |
273 | |
792 | |
274 | while (cinfo.scale_denom < 8 |
793 | while (cinfo.scale_denom < 8 |
275 | && cinfo.output_width >= IW*4 |
794 | && cinfo.output_width >= iw*4 |
276 | && cinfo.output_height >= IH*4) |
795 | && cinfo.output_height >= ih*4) |
277 | { |
796 | { |
278 | cinfo.scale_denom <<= 1; |
797 | cinfo.scale_denom <<= 1; |
279 | jpeg_calc_output_dimensions (&cinfo); |
798 | jpeg_calc_output_dimensions (&cinfo); |
280 | } |
799 | } |
281 | } |
800 | } |
282 | |
801 | |
|
|
802 | if (cinfo.output_components != 3) |
|
|
803 | longjmp (jerr.setjmp_buffer, 3); |
|
|
804 | |
|
|
805 | if (cinfo.jpeg_color_space == JCS_YCCK || cinfo.jpeg_color_space == JCS_CMYK) |
|
|
806 | { |
|
|
807 | cinfo.out_color_space = JCS_CMYK; |
|
|
808 | cinfo.output_components = 4; |
|
|
809 | } |
|
|
810 | |
283 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height); |
811 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, cinfo.output_components == 4, 8, cinfo.output_width, cinfo.output_height); |
284 | if (!RETVAL) |
812 | if (!RETVAL) |
285 | longjmp (jerr.setjmp_buffer, 2); |
813 | longjmp (jerr.setjmp_buffer, 2); |
286 | |
814 | |
287 | data = gdk_pixbuf_get_pixels (RETVAL); |
815 | data = gdk_pixbuf_get_pixels (RETVAL); |
288 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
816 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
289 | |
|
|
290 | if (cinfo.output_components != 3) |
|
|
291 | longjmp (jerr.setjmp_buffer, 3); |
|
|
292 | |
817 | |
293 | jpeg_start_decompress (&cinfo); |
818 | jpeg_start_decompress (&cinfo); |
294 | |
819 | |
295 | while (cinfo.output_scanline < cinfo.output_height) |
820 | while (cinfo.output_scanline < cinfo.output_height) |
296 | { |
821 | { |
… | |
… | |
303 | rp [3] = (guchar *)rp [2] + rs; |
828 | rp [3] = (guchar *)rp [2] + rs; |
304 | |
829 | |
305 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
830 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
306 | } |
831 | } |
307 | |
832 | |
|
|
833 | if (cinfo.out_color_space == JCS_CMYK) |
|
|
834 | { |
|
|
835 | guchar *end = data + cinfo.output_height * rs; |
|
|
836 | |
|
|
837 | while (data < end) |
|
|
838 | { |
|
|
839 | U32 c = data [0]; |
|
|
840 | U32 m = data [1]; |
|
|
841 | U32 y = data [2]; |
|
|
842 | U32 k = data [3]; |
|
|
843 | |
|
|
844 | if (0) |
|
|
845 | if (cinfo.Adobe_transform == 2) |
|
|
846 | { |
|
|
847 | c ^= 0xff; |
|
|
848 | m ^= 0xff; |
|
|
849 | y ^= 0xff; |
|
|
850 | k ^= 0xff; |
|
|
851 | } |
|
|
852 | |
|
|
853 | data [0] = (c * k + 0x80) / 0xff; |
|
|
854 | data [1] = (m * k + 0x80) / 0xff; |
|
|
855 | data [2] = (y * k + 0x80) / 0xff; |
|
|
856 | data [3] = 0xff; |
|
|
857 | |
|
|
858 | data += 4; |
|
|
859 | } |
|
|
860 | } |
|
|
861 | |
308 | jpeg_finish_decompress (&cinfo); |
862 | jpeg_finish_decompress (&cinfo); |
309 | fclose (fp); |
|
|
310 | jpeg_destroy_decompress (&cinfo); |
863 | jpeg_destroy_decompress (&cinfo); |
|
|
864 | perlinterp_acquire (); |
311 | } |
865 | } |
312 | OUTPUT: |
866 | OUTPUT: |
313 | RETVAL |
867 | RETVAL |
314 | |
868 | |
|
|
869 | void |
|
|
870 | compare (GdkPixbuf *a, GdkPixbuf *b) |
|
|
871 | PPCODE: |
|
|
872 | perlinterp_release (); |
|
|
873 | { |
|
|
874 | int w = gdk_pixbuf_get_width (a); |
|
|
875 | int h = gdk_pixbuf_get_height (a); |
|
|
876 | |
|
|
877 | int sa = gdk_pixbuf_get_rowstride (a); |
|
|
878 | int sb = gdk_pixbuf_get_rowstride (b); |
|
|
879 | |
|
|
880 | guchar *pa = gdk_pixbuf_get_pixels (a); |
|
|
881 | guchar *pb = gdk_pixbuf_get_pixels (b); |
|
|
882 | |
|
|
883 | int x, y; |
|
|
884 | |
|
|
885 | assert (w == gdk_pixbuf_get_width (b)); |
|
|
886 | assert (h == gdk_pixbuf_get_height (b)); |
|
|
887 | |
|
|
888 | assert (gdk_pixbuf_get_n_channels (a) == 3); |
|
|
889 | assert (gdk_pixbuf_get_n_channels (b) == 3); |
|
|
890 | |
|
|
891 | double diff = 0.; |
|
|
892 | int peak = 0; |
|
|
893 | |
|
|
894 | if (w && h) |
|
|
895 | for (y = 0; y < h; y++) |
|
|
896 | { |
|
|
897 | guchar *pa_ = pa + y * sa; |
|
|
898 | guchar *pb_ = pb + y * sb; |
|
|
899 | |
|
|
900 | for (x = 0; x < w; x++) |
|
|
901 | { |
|
|
902 | int d; |
|
|
903 | |
|
|
904 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
905 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
906 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
907 | } |
|
|
908 | } |
|
|
909 | |
|
|
910 | perlinterp_acquire (); |
|
|
911 | |
|
|
912 | EXTEND (SP, 2); |
|
|
913 | PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); |
|
|
914 | PUSHs (sv_2mortal (newSVnv (peak / 255.))); |
|
|
915 | } |
|
|
916 | |
315 | ############################################################################# |
917 | ############################################################################# |
316 | |
918 | |
317 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
919 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
|
|
920 | |
|
|
921 | # currently only works for filenames (octet strings) |
318 | |
922 | |
319 | SV * |
923 | SV * |
320 | foldcase (SV *pathsv) |
924 | foldcase (SV *pathsv) |
321 | PROTOTYPE: $ |
925 | PROTOTYPE: $ |
322 | CODE: |
926 | CODE: |
323 | { |
927 | { |
324 | STRLEN plen; |
928 | STRLEN plen; |
325 | U8 *path = (U8 *)SvPVutf8 (pathsv, plen); |
929 | U8 *path = (U8 *)SvPV (pathsv, plen); |
326 | U8 *pend = path + plen; |
930 | U8 *pend = path + plen; |
327 | U8 dst [plen * 6 * 3], *dstp = dst; |
931 | U8 dst [plen * 8 * 3], *dstp = dst; |
328 | |
932 | |
329 | while (path < pend) |
933 | while (path < pend) |
330 | { |
934 | { |
331 | U8 ch = *path; |
935 | U8 ch = *path; |
332 | |
936 | |
333 | if (ch >= 'a' && ch <= 'z') |
937 | if (ch >= 'a' && ch <= 'z') |
334 | *dstp++ = *path++; |
938 | *dstp++ = *path++; |
|
|
939 | else if (ch >= 'A' && ch <= 'Z') |
|
|
940 | *dstp++ = *path++ + ('a' - 'A'); |
335 | else if (ch >= '0' && ch <= '9') |
941 | else if (ch >= '0' && ch <= '9') |
336 | { |
942 | { |
|
|
943 | /* version sort, up to 8 digits */ |
337 | STRLEN el, nl = 0; |
944 | STRLEN el, nl = 0; |
338 | while (*path >= '0' && *path <= '9' && path < pend) |
945 | while (*path >= '0' && *path <= '9' && path < pend) |
339 | path++, nl++; |
946 | path++, nl++; |
340 | |
947 | |
341 | for (el = nl; el < 6; el++) |
948 | for (el = nl; el < 8; el++) |
342 | *dstp++ = '0'; |
949 | *dstp++ = '0'; |
343 | |
950 | |
344 | memcpy (dstp, path - nl, nl); |
951 | memcpy (dstp, path - nl, nl); |
345 | dstp += nl; |
952 | dstp += nl; |
346 | } |
953 | } |
|
|
954 | else |
|
|
955 | *dstp++ = *path++; |
|
|
956 | #if 0 |
347 | else |
957 | else |
348 | { |
958 | { |
349 | STRLEN cl; |
959 | STRLEN cl; |
350 | to_utf8_fold (path, dstp, &cl); |
960 | to_utf8_fold (path, dstp, &cl); |
351 | dstp += cl; |
961 | dstp += cl; |
352 | path += is_utf8_char (path); |
962 | path += is_utf8_char (path); |
353 | } |
963 | } |
|
|
964 | #endif |
354 | } |
965 | } |
355 | |
966 | |
356 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
967 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
357 | } |
968 | } |
358 | OUTPUT: |
969 | OUTPUT: |
… | |
… | |
383 | } |
994 | } |
384 | } |
995 | } |
385 | OUTPUT: |
996 | OUTPUT: |
386 | RETVAL |
997 | RETVAL |
387 | |
998 | |
|
|
999 | ############################################################################# |
|
|
1000 | |
|
|
1001 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
|
|
1002 | |
|
|
1003 | void |
|
|
1004 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
|
|
1005 | CODE: |
|
|
1006 | { |
|
|
1007 | int w = gdk_pixbuf_get_width (pb); |
|
|
1008 | int h = gdk_pixbuf_get_height (pb); |
|
|
1009 | int x, y, i; |
|
|
1010 | guchar *dst; |
|
|
1011 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
1012 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
1013 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
1014 | |
|
|
1015 | a85_init (); |
|
|
1016 | |
|
|
1017 | for (y = 0; y < h; y++) |
|
|
1018 | for (x = 0; x < w; x++) |
|
|
1019 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
1020 | a85_push (fp, src [x * bpp + y * sstr + i]); |
|
|
1021 | |
|
|
1022 | a85_finish (fp); |
|
|
1023 | } |
|
|
1024 | |
|
|
1025 | void |
|
|
1026 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
|
|
1027 | CODE: |
|
|
1028 | { |
|
|
1029 | int w = gdk_pixbuf_get_width (pb); |
|
|
1030 | int h = gdk_pixbuf_get_height (pb); |
|
|
1031 | int x, y, i; |
|
|
1032 | guchar *dst; |
|
|
1033 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
1034 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
1035 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
1036 | |
|
|
1037 | for (y = 0; y < h; y++) |
|
|
1038 | for (x = 0; x < w; x++) |
|
|
1039 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
1040 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
|
|
1041 | } |
|
|
1042 | |
|
|
1043 | ############################################################################# |
|
|
1044 | |
|
|
1045 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
|
|
1046 | |
388 | SV * |
1047 | SV * |
389 | pb_to_p7 (GdkPixbuf *pb) |
1048 | pb_to_hv84 (GdkPixbuf *pb) |
390 | CODE: |
1049 | CODE: |
391 | { |
1050 | { |
392 | int w = gdk_pixbuf_get_width (pb); |
1051 | int w = gdk_pixbuf_get_width (pb); |
393 | int h = gdk_pixbuf_get_height (pb); |
1052 | int h = gdk_pixbuf_get_height (pb); |
394 | int x, y; |
1053 | int x, y; |
395 | guchar *dst; |
1054 | guchar *dst; |
396 | int bpp = gdk_pixbuf_get_n_channels (pb); |
1055 | int bpp = gdk_pixbuf_get_n_channels (pb); |
397 | guchar *src = gdk_pixbuf_get_pixels (pb); |
1056 | guchar *src = gdk_pixbuf_get_pixels (pb); |
398 | int sstr = gdk_pixbuf_get_rowstride (pb); |
1057 | 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 | |
|
|
448 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
|
|
449 | |
|
|
450 | void |
|
|
451 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
|
|
452 | CODE: |
|
|
453 | { |
|
|
454 | int w = gdk_pixbuf_get_width (pb); |
|
|
455 | int h = gdk_pixbuf_get_height (pb); |
|
|
456 | int x, y, i; |
|
|
457 | guchar *dst; |
|
|
458 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
459 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
460 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
461 | |
|
|
462 | a85_init (); |
|
|
463 | |
|
|
464 | for (y = 0; y < h; y++) |
|
|
465 | for (x = 0; x < w; x++) |
|
|
466 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
467 | a85_push (fp, src [x * bpp + y * sstr + i]); |
|
|
468 | |
|
|
469 | a85_finish (fp); |
|
|
470 | } |
|
|
471 | |
|
|
472 | void |
|
|
473 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
|
|
474 | CODE: |
|
|
475 | { |
|
|
476 | int w = gdk_pixbuf_get_width (pb); |
|
|
477 | int h = gdk_pixbuf_get_height (pb); |
|
|
478 | int x, y, i; |
|
|
479 | guchar *dst; |
|
|
480 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
481 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
482 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
483 | |
|
|
484 | for (y = 0; y < h; y++) |
|
|
485 | for (x = 0; x < w; x++) |
|
|
486 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
487 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
|
|
488 | } |
|
|
489 | |
|
|
490 | ############################################################################# |
|
|
491 | |
|
|
492 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
|
|
493 | |
|
|
494 | SV * |
|
|
495 | pb_to_hv84 (GdkPixbuf *pb) |
|
|
496 | CODE: |
|
|
497 | { |
|
|
498 | int w = gdk_pixbuf_get_width (pb); |
|
|
499 | int h = gdk_pixbuf_get_height (pb); |
|
|
500 | int x, y; |
|
|
501 | guchar *dst; |
|
|
502 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
503 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
504 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
505 | |
1058 | |
506 | RETVAL = newSV (6 * 8 * 12 / 8); |
1059 | RETVAL = newSV (6 * 8 * 12 / 8); |
507 | SvPOK_only (RETVAL); |
1060 | SvPOK_only (RETVAL); |
508 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
1061 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
509 | |
1062 | |
… | |
… | |
578 | ############################################################################# |
1131 | ############################################################################# |
579 | |
1132 | |
580 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
1133 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
581 | |
1134 | |
582 | SV * |
1135 | SV * |
583 | make_histograms (SV *ar) |
1136 | extract_features (SV *ar) |
584 | CODE: |
1137 | CODE: |
585 | { |
1138 | { |
586 | int i; |
1139 | int i; |
587 | AV *av, *result; |
1140 | AV *av, *result; |
588 | |
1141 | |
589 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
1142 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
590 | croak ("Not an array ref as first argument to make_histogram"); |
1143 | croak ("Not an array ref as first argument to extract_features"); |
591 | |
1144 | |
592 | av = (AV *) SvRV (ar); |
1145 | av = (AV *) SvRV (ar); |
593 | result = newAV (); |
1146 | result = newAV (); |
594 | |
1147 | |
595 | for (i = 0; i <= av_len (av); ++i) |
1148 | for (i = 0; i <= av_len (av); ++i) |
596 | { |
1149 | { |
597 | const int HISTSIZE = 64; |
|
|
598 | |
|
|
599 | int j; |
|
|
600 | SV *sv = *av_fetch (av, i, 1); |
1150 | SV *sv = *av_fetch (av, i, 1); |
601 | STRLEN len; |
|
|
602 | char *buf = SvPVbyte (sv, len); |
|
|
603 | |
|
|
604 | int tmphist[HISTSIZE]; |
|
|
605 | float *hist; |
|
|
606 | |
|
|
607 | SV *histsv = newSV (HISTSIZE * sizeof (float) + 1); |
1151 | SV *histsv = newSV (9 * sizeof (float) + 1); |
|
|
1152 | |
608 | SvPOK_on (histsv); |
1153 | SvPOK_on (histsv); |
609 | SvCUR_set (histsv, HISTSIZE * sizeof (float)); |
1154 | SvCUR_set (histsv, 9 * sizeof (float)); |
610 | hist = (float *)SvPVX (histsv); |
1155 | float *hist = (float *)SvPVX (histsv); |
611 | |
1156 | |
612 | Zero (tmphist, sizeof (tmphist), char); |
1157 | struct feature f_h, f_s, f_v; |
|
|
1158 | feature_init (&f_h); |
|
|
1159 | feature_init (&f_s); |
|
|
1160 | feature_init (&f_v); |
613 | |
1161 | |
614 | for (j = len; j--; ) |
|
|
615 | { |
|
|
616 | unsigned int idx |
|
|
617 | = ((*buf & 0xc0) >> 2) |
|
|
618 | | ((*buf & 0x18) >> 1) |
|
|
619 | | (*buf & 0x03); |
|
|
620 | |
|
|
621 | ++tmphist[idx]; |
|
|
622 | ++buf; |
|
|
623 | } |
|
|
624 | |
1162 | { |
625 | for (j = 0; j < HISTSIZE; ++j) |
1163 | STRLEN len; |
626 | hist[j] = (float)tmphist[j] / (len + 1e-30); |
1164 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
|
|
1165 | while (len >= 3) |
|
|
1166 | { |
|
|
1167 | unsigned int r, g, b, h, s, v; |
|
|
1168 | r = *buf++; g = *buf++; b = *buf++; |
|
|
1169 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
1170 | |
|
|
1171 | feature_update_pass_1 (&f_h, h); |
|
|
1172 | feature_update_pass_1 (&f_s, s); |
|
|
1173 | feature_update_pass_1 (&f_v, v); |
|
|
1174 | |
|
|
1175 | len -= 3; |
|
|
1176 | } |
|
|
1177 | |
|
|
1178 | feature_finish_pass_1 (&f_h); |
|
|
1179 | feature_finish_pass_1 (&f_s); |
|
|
1180 | feature_finish_pass_1 (&f_v); |
|
|
1181 | } |
|
|
1182 | |
|
|
1183 | { |
|
|
1184 | STRLEN len; |
|
|
1185 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
|
|
1186 | while (len >= 3) |
|
|
1187 | { |
|
|
1188 | unsigned int r, g, b, h, s, v; |
|
|
1189 | r = *buf++; g = *buf++; b = *buf++; |
|
|
1190 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
1191 | |
|
|
1192 | feature_update_pass_2 (&f_h, h); |
|
|
1193 | feature_update_pass_2 (&f_s, s); |
|
|
1194 | feature_update_pass_2 (&f_v, v); |
|
|
1195 | |
|
|
1196 | len -= 3; |
|
|
1197 | } |
|
|
1198 | |
|
|
1199 | feature_finish_pass_2 (&f_h); |
|
|
1200 | feature_finish_pass_2 (&f_s); |
|
|
1201 | feature_finish_pass_2 (&f_v); |
|
|
1202 | } |
|
|
1203 | |
|
|
1204 | hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.; |
|
|
1205 | hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ; |
|
|
1206 | hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5; |
627 | |
1207 | |
628 | av_push (result, histsv); |
1208 | av_push (result, histsv); |
629 | } |
1209 | } |
630 | |
1210 | |
631 | RETVAL = newRV_noinc ((SV *)result); |
1211 | RETVAL = newRV_noinc ((SV *)result); |
632 | } |
1212 | } |
633 | OUTPUT: |
1213 | OUTPUT: |
634 | RETVAL |
1214 | RETVAL |
635 | |
1215 | |
636 | |
|
|