… | |
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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 |
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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 | # calculate the common prefix length of two strings |
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309 | # missing function in perl. really :) |
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310 | int |
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311 | common_prefix_length (a, b) |
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312 | unsigned char *a = (unsigned char *)SvPVutf8_nolen ($arg); |
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313 | unsigned char *b = (unsigned char *)SvPVutf8_nolen ($arg); |
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314 | CODE: |
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315 | RETVAL = 0; |
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316 | |
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317 | while (*a == *b && *a) |
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318 | { |
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319 | RETVAL += (*a & 0xc0) != 0x80; |
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320 | a++, b++; |
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321 | } |
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322 | |
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323 | OUTPUT: |
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324 | RETVAL |
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325 | |
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326 | const char * |
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327 | magic (SV *path_or_data) |
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328 | ALIAS: |
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329 | magic = 0 |
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330 | magic_mime = 1 |
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331 | magic_buffer = 2 |
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332 | magic_buffer_mime = 3 |
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333 | CODE: |
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334 | { |
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335 | STRLEN len; |
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336 | char *data = SvPVbyte (path_or_data, len); |
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337 | |
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338 | if (!magic_cookie[0]) |
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339 | { |
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340 | magic_cookie[0] = magic_open (MAGIC_SYMLINK); |
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341 | magic_cookie[1] = magic_open (MAGIC_SYMLINK | MAGIC_MIME_TYPE); |
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342 | magic_load (magic_cookie[0], 0); |
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343 | magic_load (magic_cookie[1], 0); |
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344 | } |
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345 | |
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346 | perlinterp_release (); |
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347 | |
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348 | RETVAL = ix & 2 |
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349 | ? magic_buffer (magic_cookie[ix & 1], data, len) |
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350 | : magic_file (magic_cookie[ix & 1], data); |
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351 | |
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352 | perlinterp_acquire (); |
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353 | } |
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354 | OUTPUT: |
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355 | RETVAL |
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356 | |
131 | # missing in Gtk2 perl module |
357 | # missing/broken in Gtk2 perl module |
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358 | |
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359 | void |
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360 | gdk_window_clear_hints (GdkWindow *window) |
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361 | CODE: |
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362 | gdk_window_set_geometry_hints (window, 0, 0); |
132 | |
363 | |
133 | gboolean |
364 | gboolean |
134 | gdk_net_wm_supports (GdkAtom property) |
365 | gdk_net_wm_supports (GdkAtom property) |
135 | CODE: |
366 | CODE: |
136 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
367 | #if defined(GDK_WINDOWING_X11) && !defined(GDK_MULTIHEAD_SAFE) |
… | |
… | |
142 | RETVAL |
373 | RETVAL |
143 | |
374 | |
144 | GdkPixbuf_noinc * |
375 | GdkPixbuf_noinc * |
145 | dealpha_expose (GdkPixbuf *pb) |
376 | dealpha_expose (GdkPixbuf *pb) |
146 | CODE: |
377 | CODE: |
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378 | perlinterp_release (); |
147 | { |
379 | { |
148 | int w = gdk_pixbuf_get_width (pb); |
380 | int w = gdk_pixbuf_get_width (pb); |
149 | int h = gdk_pixbuf_get_height (pb); |
381 | int h = gdk_pixbuf_get_height (pb); |
150 | int bpp = gdk_pixbuf_get_n_channels (pb); |
382 | int bpp = gdk_pixbuf_get_n_channels (pb); |
151 | int x, y, i; |
383 | int x, y, i; |
… | |
… | |
160 | for (x = 0; x < w; x++) |
392 | for (x = 0; x < w; x++) |
161 | for (y = 0; y < h; y++) |
393 | for (y = 0; y < h; y++) |
162 | for (i = 0; i < 3; i++) |
394 | for (i = 0; i < 3; i++) |
163 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
395 | dst[x * 3 + y * dstr + i] = src[x * bpp + y * sstr + i]; |
164 | } |
396 | } |
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397 | perlinterp_acquire (); |
165 | OUTPUT: |
398 | OUTPUT: |
166 | RETVAL |
399 | RETVAL |
167 | |
400 | |
168 | GdkPixbuf_noinc * |
401 | GdkPixbuf_noinc * |
169 | transpose (GdkPixbuf *pb) |
402 | rotate (GdkPixbuf *pb, int angle) |
170 | CODE: |
403 | CODE: |
171 | { |
404 | perlinterp_release (); |
172 | int w = gdk_pixbuf_get_width (pb); |
405 | if (angle < 0) |
173 | int h = gdk_pixbuf_get_height (pb); |
406 | angle += 360; |
174 | int bpp = gdk_pixbuf_get_n_channels (pb); |
407 | RETVAL = gdk_pixbuf_rotate_simple (pb, angle == 0 ? GDK_PIXBUF_ROTATE_NONE |
175 | int x, y, i; |
408 | : angle == 90 ? GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE |
176 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
409 | : angle == 180 ? GDK_PIXBUF_ROTATE_UPSIDEDOWN |
177 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
410 | : angle == 270 ? GDK_PIXBUF_ROTATE_CLOCKWISE |
178 | |
411 | : angle); |
179 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w); |
412 | 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: |
413 | OUTPUT: |
190 | RETVAL |
414 | RETVAL |
191 | |
415 | |
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416 | const char * |
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417 | filetype (SV *image_data) |
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418 | CODE: |
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419 | { |
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420 | STRLEN data_len; |
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421 | U8 *data = SvPVbyte (image_data, data_len); |
|
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422 | static const unsigned char jxl_header[] = { |
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423 | 0, 0, 0, 0x0c, 0x4a, 0x58, 0x4c, 0x20, |
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424 | 0x0d, 0xa, 0x87, 0x0a, 0, 0, 0, 0x14, |
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425 | 0x66, 0x74, 0x79, 0x70, 0x6a, 0x78, 0x6c, 0x20, |
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426 | 0, 0, 0, 0, 0x6a, 0x78, 0x6c, 0x20, |
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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' |
|
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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"; |
|
|
454 | else if (data_len >= sizeof (jxl_header) && memcmp (data, jxl_header, sizeof (jxl_header)) == 0) |
|
|
455 | RETVAL = "image/jxl"; |
|
|
456 | else if (data_len >= 13 |
|
|
457 | && data[0] == 'G' |
|
|
458 | && data[1] == 'I' |
|
|
459 | && data[2] == 'F' |
|
|
460 | && data[3] == '8' |
|
|
461 | //&& (data[4] == '7' || data[4] == '9') |
|
|
462 | && data[5] == 'a') |
|
|
463 | { |
|
|
464 | RETVAL = "image/gif"; |
|
|
465 | |
|
|
466 | // now see if its animated - we require the netscape application header for this |
|
|
467 | int ofs = 13; |
|
|
468 | |
|
|
469 | if (data[10] & 0x80) |
|
|
470 | ofs += (1 << ((data[10] & 7) + 1)) * 3; |
|
|
471 | |
|
|
472 | if (data_len >= ofs + 2 + 1 + 11) |
|
|
473 | { |
|
|
474 | // skip a rare first graphic control extension block |
|
|
475 | // we assume there is exactly one block |
|
|
476 | if (data[ofs] == 0x21 && data[ofs + 1] == 0xf9) |
|
|
477 | ofs += 3 + data[ofs + 2] + 1; |
|
|
478 | |
|
|
479 | if (data_len >= ofs + 2 + 1 + 11) |
|
|
480 | if (!memcmp (data + ofs, "\x21\xff\x0bNETSCAPE2.0", sizeof ("\x21\xff\x0bNETSCAPE2.0") - 1)) |
|
|
481 | RETVAL = "video/gif"; |
|
|
482 | } |
|
|
483 | } |
|
|
484 | |
|
|
485 | else |
|
|
486 | XSRETURN_UNDEF; |
|
|
487 | } |
|
|
488 | OUTPUT: |
|
|
489 | RETVAL |
|
|
490 | |
192 | GdkPixbuf_noinc * |
491 | GdkPixbuf_noinc * |
193 | flop (GdkPixbuf *pb) |
492 | decode_webp (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
194 | CODE: |
493 | CODE: |
195 | { |
494 | { |
196 | int w = gdk_pixbuf_get_width (pb); |
495 | #if WEBP |
197 | int h = gdk_pixbuf_get_height (pb); |
496 | STRLEN data_size; |
198 | int bpp = gdk_pixbuf_get_n_channels (pb); |
497 | int alpha; |
|
|
498 | WebPData data; |
|
|
499 | WebPDemuxer *demux; |
|
|
500 | WebPIterator iter; |
|
|
501 | WebPDecoderConfig config; |
199 | int x, y, i; |
502 | int inw, inh; |
200 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
|
|
201 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
|
|
202 | |
503 | |
|
|
504 | data.bytes = (uint8_t *)SvPVbyte (image_data, data_size); |
|
|
505 | data.size = data_size; |
|
|
506 | |
|
|
507 | perlinterp_release (); |
|
|
508 | |
|
|
509 | RETVAL = 0; |
|
|
510 | |
|
|
511 | if (!(demux = WebPDemux (&data))) |
|
|
512 | goto err_demux; |
|
|
513 | |
|
|
514 | if (!WebPDemuxGetFrame (demux, 1, &iter)) |
|
|
515 | goto err_iter; |
|
|
516 | |
|
|
517 | if (!WebPInitDecoderConfig (&config)) |
|
|
518 | goto err_iter; |
|
|
519 | |
|
|
520 | config.options.use_threads = 1; |
|
|
521 | |
|
|
522 | if (WebPGetFeatures (iter.fragment.bytes, iter.fragment.size, &config.input) != VP8_STATUS_OK) |
|
|
523 | goto err_iter; |
|
|
524 | |
|
|
525 | inw = config.input.width; |
|
|
526 | inh = config.input.height; |
|
|
527 | |
|
|
528 | if (thumbnail) |
|
|
529 | { |
|
|
530 | if (inw * ih > inh * iw) |
|
|
531 | ih = (iw * inh + inw - 1) / inw; |
|
|
532 | else |
|
|
533 | iw = (ih * inw + inh - 1) / inh; |
|
|
534 | |
|
|
535 | config.options.bypass_filtering = 1; |
|
|
536 | config.options.no_fancy_upsampling = 1; |
|
|
537 | |
|
|
538 | config.options.use_scaling = 1; |
|
|
539 | config.options.scaled_width = iw; |
|
|
540 | config.options.scaled_height = ih; |
|
|
541 | } |
|
|
542 | else |
|
|
543 | { |
|
|
544 | iw = inw; |
|
|
545 | ih = inh; |
|
|
546 | } |
|
|
547 | |
|
|
548 | alpha = !!config.input.has_alpha; |
|
|
549 | |
203 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h); |
550 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, alpha, 8, iw, ih); |
|
|
551 | if (!RETVAL) |
|
|
552 | goto err_iter; |
204 | |
553 | |
205 | dst = gdk_pixbuf_get_pixels (RETVAL); |
554 | config.output.colorspace = alpha ? MODE_RGBA : MODE_RGB; |
|
|
555 | config.output.u.RGBA.rgba = gdk_pixbuf_get_pixels (RETVAL); |
206 | dstr = gdk_pixbuf_get_rowstride (RETVAL); |
556 | config.output.u.RGBA.stride = gdk_pixbuf_get_rowstride (RETVAL); |
|
|
557 | config.output.u.RGBA.size = gdk_pixbuf_get_byte_length (RETVAL); |
|
|
558 | config.output.is_external_memory = 1; |
207 | |
559 | |
208 | for (y = 0; y < h; y++) |
560 | if (WebPDecode (iter.fragment.bytes, iter.fragment.size, &config) != VP8_STATUS_OK) |
209 | for (x = 0; x < w; x++) |
561 | { |
210 | for (i = 0; i < bpp; i++) |
562 | g_object_unref (RETVAL); |
211 | dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i]; |
563 | RETVAL = 0; |
|
|
564 | goto err_iter; |
|
|
565 | } |
|
|
566 | |
|
|
567 | err_iter: |
|
|
568 | WebPDemuxReleaseIterator (&iter); |
|
|
569 | err_demux: |
|
|
570 | WebPDemuxDelete (demux); |
|
|
571 | |
|
|
572 | perlinterp_acquire (); |
|
|
573 | #else |
|
|
574 | croak ("load_webp: webp not enabled at compile time"); |
|
|
575 | #endif |
212 | } |
576 | } |
213 | OUTPUT: |
577 | OUTPUT: |
214 | RETVAL |
578 | RETVAL |
215 | |
579 | |
216 | GdkPixbuf_noinc * |
580 | GdkPixbuf_noinc * |
217 | load_jpeg (SV *path, int thumbnail=0) |
581 | decode_jxl (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
|
|
582 | CODE: |
|
|
583 | { |
|
|
584 | #if JXL |
|
|
585 | JxlDecoder *dec = JxlDecoderCreate (0); |
|
|
586 | JxlBasicInfo info; |
|
|
587 | const uint8_t *next_in = (uint8_t *)SvPVbyte_nolen (image_data); |
|
|
588 | size_t avail_in = SvCUR (image_data); |
|
|
589 | const char *error = 0; |
|
|
590 | void *runner = 0; |
|
|
591 | struct bmff_box box; |
|
|
592 | |
|
|
593 | perlinterp_release (); |
|
|
594 | |
|
|
595 | RETVAL = 0; |
|
|
596 | |
|
|
597 | error = "JxlDecoderCreate failed"; |
|
|
598 | if (!dec) |
|
|
599 | goto done; |
|
|
600 | |
|
|
601 | runner = JxlThreadParallelRunnerCreate (0, JxlThreadParallelRunnerDefaultNumWorkerThreads ()); |
|
|
602 | |
|
|
603 | error = "JxlDecoderSetParallelRunner failed"; |
|
|
604 | if (JxlDecoderSetParallelRunner (dec, JxlThreadParallelRunner, runner) != JXL_DEC_SUCCESS) |
|
|
605 | goto done; |
|
|
606 | |
|
|
607 | error = "JxlDecoderSubscribeEvents failed"; |
|
|
608 | if (JxlDecoderSubscribeEvents (dec, JXL_DEC_FULL_IMAGE | JXL_DEC_BASIC_INFO) != JXL_DEC_SUCCESS) |
|
|
609 | goto done; |
|
|
610 | |
|
|
611 | error = "JxlDecoderSetInput failed"; |
|
|
612 | if (JxlDecoderSetInput (dec, next_in, avail_in) != JXL_DEC_SUCCESS) |
|
|
613 | goto done; |
|
|
614 | |
|
|
615 | for (;;) |
|
|
616 | { |
|
|
617 | JxlDecoderStatus status = JxlDecoderProcessInput (dec); |
|
|
618 | |
|
|
619 | printf ("status %d\n",status); |
|
|
620 | |
|
|
621 | switch (status) |
|
|
622 | { |
|
|
623 | case JXL_DEC_ERROR: |
|
|
624 | error = "JxlDecoderProcessInput failed"; |
|
|
625 | goto done; |
|
|
626 | |
|
|
627 | case JXL_DEC_NEED_MORE_INPUT: |
|
|
628 | error = "incomplete file"; |
|
|
629 | goto done; |
|
|
630 | |
|
|
631 | case JXL_DEC_SUCCESS: |
|
|
632 | goto done; |
|
|
633 | |
|
|
634 | case JXL_DEC_NEED_IMAGE_OUT_BUFFER: |
|
|
635 | { |
|
|
636 | error = "JxlDecoderGetBasicInfo failed"; |
|
|
637 | if (JxlDecoderGetBasicInfo (dec, &info) != JXL_DEC_SUCCESS) |
|
|
638 | goto done; |
|
|
639 | |
|
|
640 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, !!info.alpha_bits, 8, info.xsize, info.ysize); |
|
|
641 | error = "unable to allocate pixbuf"; |
|
|
642 | if (!RETVAL) |
|
|
643 | goto done; |
|
|
644 | |
|
|
645 | JxlPixelFormat format = { |
|
|
646 | info.alpha_bits ? 4 : 3, |
|
|
647 | JXL_TYPE_UINT8, |
|
|
648 | JXL_NATIVE_ENDIAN, |
|
|
649 | gdk_pixbuf_get_rowstride (RETVAL) |
|
|
650 | }; |
|
|
651 | |
|
|
652 | error = "JxlDecoderSetImageOutBuffer failed"; |
|
|
653 | if (JxlDecoderSetImageOutBuffer ( |
|
|
654 | dec, |
|
|
655 | &format, |
|
|
656 | gdk_pixbuf_get_pixels (RETVAL), |
|
|
657 | gdk_pixbuf_get_byte_length (RETVAL) |
|
|
658 | ) != JXL_DEC_SUCCESS) |
|
|
659 | goto done; |
|
|
660 | } |
|
|
661 | break; |
|
|
662 | |
|
|
663 | default: |
|
|
664 | error = "unexpected event"; |
|
|
665 | goto done; |
|
|
666 | } |
|
|
667 | } |
|
|
668 | |
|
|
669 | done: |
|
|
670 | if (dec) |
|
|
671 | JxlDecoderDestroy (dec); |
|
|
672 | |
|
|
673 | if (runner) |
|
|
674 | JxlThreadParallelRunnerDestroy (runner); |
|
|
675 | |
|
|
676 | perlinterp_acquire (); |
|
|
677 | |
|
|
678 | if (error) |
|
|
679 | { |
|
|
680 | if (RETVAL) |
|
|
681 | g_object_unref (RETVAL); |
|
|
682 | |
|
|
683 | croak ("load_jxl: %s", error); |
|
|
684 | } |
|
|
685 | #else |
|
|
686 | croak ("load_jxl: jpeg-xl not enabled at compile time"); |
|
|
687 | #endif |
|
|
688 | } |
|
|
689 | OUTPUT: |
|
|
690 | RETVAL |
|
|
691 | |
|
|
692 | GdkPixbuf_noinc * |
|
|
693 | decode_jpeg (SV *image_data, int thumbnail = 0, int iw = 0, int ih = 0) |
218 | CODE: |
694 | CODE: |
219 | { |
695 | { |
220 | struct jpeg_decompress_struct cinfo; |
696 | struct jpeg_decompress_struct cinfo; |
221 | struct jpg_err_mgr jerr; |
697 | struct jpg_err_mgr jerr; |
222 | guchar *data; |
|
|
223 | int rs; |
698 | int rs; |
224 | FILE *fp; |
|
|
225 | volatile GdkPixbuf *pb = 0; |
699 | volatile GdkPixbuf *pb = 0; |
226 | gchar *filename; |
700 | STRLEN data_len; |
|
|
701 | guchar *data = SvPVbyte (image_data, data_len); |
227 | |
702 | |
228 | RETVAL = 0; |
703 | RETVAL = 0; |
229 | |
704 | |
230 | filename = g_filename_from_utf8 (SvPVutf8_nolen (path), -1, 0, 0, 0); |
705 | perlinterp_release (); |
231 | fp = fopen (filename, "rb"); |
|
|
232 | g_free (filename); |
|
|
233 | |
|
|
234 | if (!fp) |
|
|
235 | XSRETURN_UNDEF; |
|
|
236 | |
706 | |
237 | cinfo.err = jpeg_std_error (&jerr.err); |
707 | cinfo.err = jpeg_std_error (&jerr.err); |
238 | |
708 | |
239 | jerr.err.error_exit = cv_error_exit; |
709 | jerr.err.error_exit = cv_error_exit; |
240 | jerr.err.output_message = cv_error_output; |
710 | jerr.err.output_message = cv_error_output; |
241 | |
711 | |
242 | if ((rs = setjmp (jerr.setjmp_buffer))) |
712 | if ((rs = setjmp (jerr.setjmp_buffer))) |
243 | { |
713 | { |
244 | fclose (fp); |
|
|
245 | jpeg_destroy_decompress (&cinfo); |
714 | jpeg_destroy_decompress (&cinfo); |
246 | |
715 | |
247 | if (pb) |
716 | if (pb) |
248 | g_object_unref ((gpointer)pb); |
717 | g_object_unref ((gpointer)pb); |
249 | |
718 | |
|
|
719 | perlinterp_acquire (); |
250 | XSRETURN_UNDEF; |
720 | XSRETURN_UNDEF; |
251 | } |
721 | } |
252 | |
722 | |
|
|
723 | if (!data_len) |
|
|
724 | longjmp (jerr.setjmp_buffer, 4); |
|
|
725 | |
253 | jpeg_create_decompress (&cinfo); |
726 | jpeg_create_decompress (&cinfo); |
|
|
727 | cv_jpeg_mem_src (&cinfo, data, data_len); |
254 | |
728 | |
255 | jpeg_stdio_src (&cinfo, fp); |
|
|
256 | jpeg_read_header (&cinfo, TRUE); |
729 | jpeg_read_header (&cinfo, TRUE); |
257 | |
730 | |
258 | cinfo.dct_method = JDCT_DEFAULT; |
731 | cinfo.dct_method = JDCT_DEFAULT; |
259 | cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ |
732 | cinfo.do_fancy_upsampling = FALSE; /* worse quality, but nobody compained so far, and gdk-pixbuf does the same */ |
260 | cinfo.do_block_smoothing = FALSE; |
733 | cinfo.do_block_smoothing = FALSE; |
… | |
… | |
270 | { |
743 | { |
271 | cinfo.dct_method = JDCT_FASTEST; |
744 | cinfo.dct_method = JDCT_FASTEST; |
272 | cinfo.do_fancy_upsampling = FALSE; |
745 | cinfo.do_fancy_upsampling = FALSE; |
273 | |
746 | |
274 | while (cinfo.scale_denom < 8 |
747 | while (cinfo.scale_denom < 8 |
275 | && cinfo.output_width >= IW*4 |
748 | && cinfo.output_width >= iw*4 |
276 | && cinfo.output_height >= IH*4) |
749 | && cinfo.output_height >= ih*4) |
277 | { |
750 | { |
278 | cinfo.scale_denom <<= 1; |
751 | cinfo.scale_denom <<= 1; |
279 | jpeg_calc_output_dimensions (&cinfo); |
752 | jpeg_calc_output_dimensions (&cinfo); |
280 | } |
753 | } |
281 | } |
754 | } |
282 | |
755 | |
|
|
756 | if (cinfo.output_components != 3) |
|
|
757 | longjmp (jerr.setjmp_buffer, 3); |
|
|
758 | |
|
|
759 | if (cinfo.jpeg_color_space == JCS_YCCK || cinfo.jpeg_color_space == JCS_CMYK) |
|
|
760 | { |
|
|
761 | cinfo.out_color_space = JCS_CMYK; |
|
|
762 | cinfo.output_components = 4; |
|
|
763 | } |
|
|
764 | |
283 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, 0, 8, cinfo.output_width, cinfo.output_height); |
765 | pb = RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, cinfo.output_components == 4, 8, cinfo.output_width, cinfo.output_height); |
284 | if (!RETVAL) |
766 | if (!RETVAL) |
285 | longjmp (jerr.setjmp_buffer, 2); |
767 | longjmp (jerr.setjmp_buffer, 2); |
286 | |
768 | |
287 | data = gdk_pixbuf_get_pixels (RETVAL); |
769 | data = gdk_pixbuf_get_pixels (RETVAL); |
288 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
770 | rs = gdk_pixbuf_get_rowstride (RETVAL); |
289 | |
|
|
290 | if (cinfo.output_components != 3) |
|
|
291 | longjmp (jerr.setjmp_buffer, 3); |
|
|
292 | |
771 | |
293 | jpeg_start_decompress (&cinfo); |
772 | jpeg_start_decompress (&cinfo); |
294 | |
773 | |
295 | while (cinfo.output_scanline < cinfo.output_height) |
774 | while (cinfo.output_scanline < cinfo.output_height) |
296 | { |
775 | { |
… | |
… | |
303 | rp [3] = (guchar *)rp [2] + rs; |
782 | rp [3] = (guchar *)rp [2] + rs; |
304 | |
783 | |
305 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
784 | jpeg_read_scanlines (&cinfo, rp, remaining < 4 ? remaining : 4); |
306 | } |
785 | } |
307 | |
786 | |
|
|
787 | if (cinfo.out_color_space == JCS_CMYK) |
|
|
788 | { |
|
|
789 | guchar *end = data + cinfo.output_height * rs; |
|
|
790 | |
|
|
791 | while (data < end) |
|
|
792 | { |
|
|
793 | U32 c = data [0]; |
|
|
794 | U32 m = data [1]; |
|
|
795 | U32 y = data [2]; |
|
|
796 | U32 k = data [3]; |
|
|
797 | |
|
|
798 | if (0) |
|
|
799 | if (cinfo.Adobe_transform == 2) |
|
|
800 | { |
|
|
801 | c ^= 0xff; |
|
|
802 | m ^= 0xff; |
|
|
803 | y ^= 0xff; |
|
|
804 | k ^= 0xff; |
|
|
805 | } |
|
|
806 | |
|
|
807 | data [0] = (c * k + 0x80) / 0xff; |
|
|
808 | data [1] = (m * k + 0x80) / 0xff; |
|
|
809 | data [2] = (y * k + 0x80) / 0xff; |
|
|
810 | data [3] = 0xff; |
|
|
811 | |
|
|
812 | data += 4; |
|
|
813 | } |
|
|
814 | } |
|
|
815 | |
308 | jpeg_finish_decompress (&cinfo); |
816 | jpeg_finish_decompress (&cinfo); |
309 | fclose (fp); |
|
|
310 | jpeg_destroy_decompress (&cinfo); |
817 | jpeg_destroy_decompress (&cinfo); |
|
|
818 | perlinterp_acquire (); |
311 | } |
819 | } |
312 | OUTPUT: |
820 | OUTPUT: |
313 | RETVAL |
821 | RETVAL |
314 | |
822 | |
|
|
823 | void |
|
|
824 | compare (GdkPixbuf *a, GdkPixbuf *b) |
|
|
825 | PPCODE: |
|
|
826 | perlinterp_release (); |
|
|
827 | { |
|
|
828 | int w = gdk_pixbuf_get_width (a); |
|
|
829 | int h = gdk_pixbuf_get_height (a); |
|
|
830 | |
|
|
831 | int sa = gdk_pixbuf_get_rowstride (a); |
|
|
832 | int sb = gdk_pixbuf_get_rowstride (b); |
|
|
833 | |
|
|
834 | guchar *pa = gdk_pixbuf_get_pixels (a); |
|
|
835 | guchar *pb = gdk_pixbuf_get_pixels (b); |
|
|
836 | |
|
|
837 | int x, y; |
|
|
838 | |
|
|
839 | assert (w == gdk_pixbuf_get_width (b)); |
|
|
840 | assert (h == gdk_pixbuf_get_height (b)); |
|
|
841 | |
|
|
842 | assert (gdk_pixbuf_get_n_channels (a) == 3); |
|
|
843 | assert (gdk_pixbuf_get_n_channels (b) == 3); |
|
|
844 | |
|
|
845 | double diff = 0.; |
|
|
846 | int peak = 0; |
|
|
847 | |
|
|
848 | if (w && h) |
|
|
849 | for (y = 0; y < h; y++) |
|
|
850 | { |
|
|
851 | guchar *pa_ = pa + y * sa; |
|
|
852 | guchar *pb_ = pb + y * sb; |
|
|
853 | |
|
|
854 | for (x = 0; x < w; x++) |
|
|
855 | { |
|
|
856 | int d; |
|
|
857 | |
|
|
858 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
859 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
860 | d = ((int)*pa_++) - ((int)*pb_++); diff += d*d; peak = MAX (peak, abs (d)); |
|
|
861 | } |
|
|
862 | } |
|
|
863 | |
|
|
864 | perlinterp_acquire (); |
|
|
865 | |
|
|
866 | EXTEND (SP, 2); |
|
|
867 | PUSHs (sv_2mortal (newSVnv (sqrt (diff / (w * h * 3. * 255. * 255.))))); |
|
|
868 | PUSHs (sv_2mortal (newSVnv (peak / 255.))); |
|
|
869 | } |
|
|
870 | |
315 | ############################################################################# |
871 | ############################################################################# |
316 | |
872 | |
317 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
873 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
|
|
874 | |
|
|
875 | # currently only works for filenames (octet strings) |
318 | |
876 | |
319 | SV * |
877 | SV * |
320 | foldcase (SV *pathsv) |
878 | foldcase (SV *pathsv) |
321 | PROTOTYPE: $ |
879 | PROTOTYPE: $ |
322 | CODE: |
880 | CODE: |
323 | { |
881 | { |
324 | STRLEN plen; |
882 | STRLEN plen; |
325 | U8 *path = (U8 *)SvPVutf8 (pathsv, plen); |
883 | U8 *path = (U8 *)SvPV (pathsv, plen); |
326 | U8 *pend = path + plen; |
884 | U8 *pend = path + plen; |
327 | U8 dst [plen * 6 * 3], *dstp = dst; |
885 | U8 dst [plen * 8 * 3], *dstp = dst; |
328 | |
886 | |
329 | while (path < pend) |
887 | while (path < pend) |
330 | { |
888 | { |
331 | U8 ch = *path; |
889 | U8 ch = *path; |
332 | |
890 | |
333 | if (ch >= 'a' && ch <= 'z') |
891 | if (ch >= 'a' && ch <= 'z') |
334 | *dstp++ = *path++; |
892 | *dstp++ = *path++; |
|
|
893 | else if (ch >= 'A' && ch <= 'Z') |
|
|
894 | *dstp++ = *path++ + ('a' - 'A'); |
335 | else if (ch >= '0' && ch <= '9') |
895 | else if (ch >= '0' && ch <= '9') |
336 | { |
896 | { |
|
|
897 | /* version sort, up to 8 digits */ |
337 | STRLEN el, nl = 0; |
898 | STRLEN el, nl = 0; |
338 | while (*path >= '0' && *path <= '9' && path < pend) |
899 | while (*path >= '0' && *path <= '9' && path < pend) |
339 | path++, nl++; |
900 | path++, nl++; |
340 | |
901 | |
341 | for (el = nl; el < 6; el++) |
902 | for (el = nl; el < 8; el++) |
342 | *dstp++ = '0'; |
903 | *dstp++ = '0'; |
343 | |
904 | |
344 | memcpy (dstp, path - nl, nl); |
905 | memcpy (dstp, path - nl, nl); |
345 | dstp += nl; |
906 | dstp += nl; |
346 | } |
907 | } |
|
|
908 | else |
|
|
909 | *dstp++ = *path++; |
|
|
910 | #if 0 |
347 | else |
911 | else |
348 | { |
912 | { |
349 | STRLEN cl; |
913 | STRLEN cl; |
350 | to_utf8_fold (path, dstp, &cl); |
914 | to_utf8_fold (path, dstp, &cl); |
351 | dstp += cl; |
915 | dstp += cl; |
352 | path += is_utf8_char (path); |
916 | path += is_utf8_char (path); |
353 | } |
917 | } |
|
|
918 | #endif |
354 | } |
919 | } |
355 | |
920 | |
356 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
921 | RETVAL = newSVpvn ((const char *)dst, dstp - dst); |
357 | } |
922 | } |
358 | OUTPUT: |
923 | OUTPUT: |
… | |
… | |
383 | } |
948 | } |
384 | } |
949 | } |
385 | OUTPUT: |
950 | OUTPUT: |
386 | RETVAL |
951 | RETVAL |
387 | |
952 | |
|
|
953 | ############################################################################# |
|
|
954 | |
|
|
955 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
|
|
956 | |
|
|
957 | void |
|
|
958 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
|
|
959 | CODE: |
|
|
960 | { |
|
|
961 | int w = gdk_pixbuf_get_width (pb); |
|
|
962 | int h = gdk_pixbuf_get_height (pb); |
|
|
963 | int x, y, i; |
|
|
964 | guchar *dst; |
|
|
965 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
966 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
967 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
968 | |
|
|
969 | a85_init (); |
|
|
970 | |
|
|
971 | for (y = 0; y < h; y++) |
|
|
972 | for (x = 0; x < w; x++) |
|
|
973 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
974 | a85_push (fp, src [x * bpp + y * sstr + i]); |
|
|
975 | |
|
|
976 | a85_finish (fp); |
|
|
977 | } |
|
|
978 | |
|
|
979 | void |
|
|
980 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
|
|
981 | CODE: |
|
|
982 | { |
|
|
983 | int w = gdk_pixbuf_get_width (pb); |
|
|
984 | int h = gdk_pixbuf_get_height (pb); |
|
|
985 | int x, y, i; |
|
|
986 | guchar *dst; |
|
|
987 | int bpp = gdk_pixbuf_get_n_channels (pb); |
|
|
988 | guchar *src = gdk_pixbuf_get_pixels (pb); |
|
|
989 | int sstr = gdk_pixbuf_get_rowstride (pb); |
|
|
990 | |
|
|
991 | for (y = 0; y < h; y++) |
|
|
992 | for (x = 0; x < w; x++) |
|
|
993 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
|
|
994 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
|
|
995 | } |
|
|
996 | |
|
|
997 | ############################################################################# |
|
|
998 | |
|
|
999 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV |
|
|
1000 | |
388 | SV * |
1001 | SV * |
389 | pb_to_p7 (GdkPixbuf *pb) |
1002 | pb_to_hv84 (GdkPixbuf *pb) |
390 | CODE: |
1003 | CODE: |
391 | { |
1004 | { |
392 | int w = gdk_pixbuf_get_width (pb); |
1005 | int w = gdk_pixbuf_get_width (pb); |
393 | int h = gdk_pixbuf_get_height (pb); |
1006 | int h = gdk_pixbuf_get_height (pb); |
394 | int x, y; |
1007 | int x, y; |
395 | guchar *dst; |
1008 | guchar *dst; |
396 | int bpp = gdk_pixbuf_get_n_channels (pb); |
1009 | int bpp = gdk_pixbuf_get_n_channels (pb); |
397 | guchar *src = gdk_pixbuf_get_pixels (pb); |
1010 | guchar *src = gdk_pixbuf_get_pixels (pb); |
398 | int sstr = gdk_pixbuf_get_rowstride (pb); |
1011 | 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 | |
1012 | |
506 | RETVAL = newSV (6 * 8 * 12 / 8); |
1013 | RETVAL = newSV (6 * 8 * 12 / 8); |
507 | SvPOK_only (RETVAL); |
1014 | SvPOK_only (RETVAL); |
508 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
1015 | SvCUR_set (RETVAL, 6 * 8 * 12 / 8); |
509 | |
1016 | |
… | |
… | |
578 | ############################################################################# |
1085 | ############################################################################# |
579 | |
1086 | |
580 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
1087 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Plugin::RCluster |
581 | |
1088 | |
582 | SV * |
1089 | SV * |
583 | make_histograms (SV *ar) |
1090 | extract_features (SV *ar) |
584 | CODE: |
1091 | CODE: |
585 | { |
1092 | { |
586 | int i; |
1093 | int i; |
587 | AV *av, *result; |
1094 | AV *av, *result; |
588 | |
1095 | |
589 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
1096 | if (!SvROK (ar) || SvTYPE (SvRV (ar)) != SVt_PVAV) |
590 | croak ("Not an array ref as first argument to make_histogram"); |
1097 | croak ("Not an array ref as first argument to extract_features"); |
591 | |
1098 | |
592 | av = (AV *) SvRV (ar); |
1099 | av = (AV *) SvRV (ar); |
593 | result = newAV (); |
1100 | result = newAV (); |
594 | |
1101 | |
595 | for (i = 0; i <= av_len (av); ++i) |
1102 | for (i = 0; i <= av_len (av); ++i) |
596 | { |
1103 | { |
597 | const int HISTSIZE = 64; |
|
|
598 | |
|
|
599 | int j; |
|
|
600 | SV *sv = *av_fetch (av, i, 1); |
1104 | 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); |
1105 | SV *histsv = newSV (9 * sizeof (float) + 1); |
|
|
1106 | |
608 | SvPOK_on (histsv); |
1107 | SvPOK_on (histsv); |
609 | SvCUR_set (histsv, HISTSIZE * sizeof (float)); |
1108 | SvCUR_set (histsv, 9 * sizeof (float)); |
610 | hist = (float *)SvPVX (histsv); |
1109 | float *hist = (float *)SvPVX (histsv); |
611 | |
1110 | |
612 | Zero (tmphist, sizeof (tmphist), char); |
1111 | struct feature f_h, f_s, f_v; |
|
|
1112 | feature_init (&f_h); |
|
|
1113 | feature_init (&f_s); |
|
|
1114 | feature_init (&f_v); |
613 | |
1115 | |
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 | |
1116 | { |
625 | for (j = 0; j < HISTSIZE; ++j) |
1117 | STRLEN len; |
626 | hist[j] = (float)tmphist[j] / (len + 1e-30); |
1118 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
|
|
1119 | while (len >= 3) |
|
|
1120 | { |
|
|
1121 | unsigned int r, g, b, h, s, v; |
|
|
1122 | r = *buf++; g = *buf++; b = *buf++; |
|
|
1123 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
1124 | |
|
|
1125 | feature_update_pass_1 (&f_h, h); |
|
|
1126 | feature_update_pass_1 (&f_s, s); |
|
|
1127 | feature_update_pass_1 (&f_v, v); |
|
|
1128 | |
|
|
1129 | len -= 3; |
|
|
1130 | } |
|
|
1131 | |
|
|
1132 | feature_finish_pass_1 (&f_h); |
|
|
1133 | feature_finish_pass_1 (&f_s); |
|
|
1134 | feature_finish_pass_1 (&f_v); |
|
|
1135 | } |
|
|
1136 | |
|
|
1137 | { |
|
|
1138 | STRLEN len; |
|
|
1139 | unsigned char *buf = (unsigned char *)SvPVbyte (sv, len); |
|
|
1140 | while (len >= 3) |
|
|
1141 | { |
|
|
1142 | unsigned int r, g, b, h, s, v; |
|
|
1143 | r = *buf++; g = *buf++; b = *buf++; |
|
|
1144 | rgb_to_hsv (r, g, b, &h, &s, &v); |
|
|
1145 | |
|
|
1146 | feature_update_pass_2 (&f_h, h); |
|
|
1147 | feature_update_pass_2 (&f_s, s); |
|
|
1148 | feature_update_pass_2 (&f_v, v); |
|
|
1149 | |
|
|
1150 | len -= 3; |
|
|
1151 | } |
|
|
1152 | |
|
|
1153 | feature_finish_pass_2 (&f_h); |
|
|
1154 | feature_finish_pass_2 (&f_s); |
|
|
1155 | feature_finish_pass_2 (&f_v); |
|
|
1156 | } |
|
|
1157 | |
|
|
1158 | hist [0] = f_h.v1 * 2.; hist [1] = f_h.v2 * 2.; hist [2] = f_h.v3 * 2.; |
|
|
1159 | hist [3] = f_s.v1 ; hist [4] = f_s.v2 ; hist [5] = f_s.v3 ; |
|
|
1160 | hist [6] = f_v.v1 * .5; hist [7] = f_v.v2 * .5; hist [8] = f_v.v3 * .5; |
627 | |
1161 | |
628 | av_push (result, histsv); |
1162 | av_push (result, histsv); |
629 | } |
1163 | } |
630 | |
1164 | |
631 | RETVAL = newRV_noinc ((SV *)result); |
1165 | RETVAL = newRV_noinc ((SV *)result); |
632 | } |
1166 | } |
633 | OUTPUT: |
1167 | OUTPUT: |
634 | RETVAL |
1168 | RETVAL |
635 | |
1169 | |
636 | |
|
|