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5 | #include <gdk-pixbuf/gdk-pixbuf.h> |
5 | #include <gdk-pixbuf/gdk-pixbuf.h> |
6 | |
6 | |
7 | #include <gperl.h> |
7 | #include <gperl.h> |
8 | #include <gtk2perl.h> |
8 | #include <gtk2perl.h> |
9 | |
9 | |
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10 | #define IW 80 |
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11 | |
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12 | #define RAND (seed = (seed + 7141) * 54773 % 134456) |
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13 | |
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14 | #define LINELENGTH 240 |
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15 | |
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16 | #define ELLIPSIS "\xe2\x80\xa6" |
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17 | |
10 | static guint32 a85_val; |
18 | static guint32 a85_val; |
11 | static guint a85_cnt; |
19 | static guint a85_cnt; |
12 | static guchar a85_buf[80], *a85_ptr; |
20 | static guchar a85_buf[LINELENGTH], *a85_ptr; |
13 | |
21 | |
14 | static void |
22 | static void |
15 | a85_init (void) |
23 | a85_init (void) |
16 | { |
24 | { |
17 | a85_cnt = 4; |
25 | a85_cnt = 4; |
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59 | *a85_ptr++ = '\n'; |
67 | *a85_ptr++ = '\n'; |
60 | |
68 | |
61 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
69 | PerlIO_write (fp, a85_buf, a85_ptr - a85_buf); |
62 | } |
70 | } |
63 | |
71 | |
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72 | ///////////////////////////////////////////////////////////////////////////// |
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73 | |
64 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::ImageWindow |
74 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::ImageWindow |
65 | |
75 | |
66 | PROTOTYPES: ENABLE |
76 | PROTOTYPES: ENABLE |
67 | |
77 | |
68 | GdkPixbuf_noinc * |
78 | GdkPixbuf_noinc * |
69 | transpose (GdkPixbuf *pb) |
79 | transpose (GdkPixbuf *pb) |
70 | CODE: |
80 | CODE: |
71 | { |
81 | { |
72 | int w = gdk_pixbuf_get_width (pb); |
82 | int w = gdk_pixbuf_get_width (pb); |
73 | int h = gdk_pixbuf_get_height (pb); |
83 | int h = gdk_pixbuf_get_height (pb); |
74 | int bpp = gdk_pixbuf_get_has_alpha (pb) ? 4 : 3; |
84 | int bpp = gdk_pixbuf_get_n_channels (pb); |
75 | int x, y, i; |
85 | int x, y, i; |
76 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
86 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
77 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
87 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
78 | |
88 | |
79 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w); |
89 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, h, w); |
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93 | flop (GdkPixbuf *pb) |
103 | flop (GdkPixbuf *pb) |
94 | CODE: |
104 | CODE: |
95 | { |
105 | { |
96 | int w = gdk_pixbuf_get_width (pb); |
106 | int w = gdk_pixbuf_get_width (pb); |
97 | int h = gdk_pixbuf_get_height (pb); |
107 | int h = gdk_pixbuf_get_height (pb); |
98 | int bpp = gdk_pixbuf_get_has_alpha (pb) ? 4 : 3; |
108 | int bpp = gdk_pixbuf_get_n_channels (pb); |
99 | int x, y, i; |
109 | int x, y, i; |
100 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
110 | guchar *src = gdk_pixbuf_get_pixels (pb), *dst; |
101 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
111 | int sstr = gdk_pixbuf_get_rowstride (pb), dstr; |
102 | |
112 | |
103 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h); |
113 | RETVAL = gdk_pixbuf_new (GDK_COLORSPACE_RGB, bpp == 4, 8, w, h); |
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110 | for (i = 0; i < bpp; i++) |
120 | for (i = 0; i < bpp; i++) |
111 | dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i]; |
121 | dst[(w - 1 - x) * bpp + y * dstr + i] = src[x * bpp + y * sstr + i]; |
112 | } |
122 | } |
113 | OUTPUT: |
123 | OUTPUT: |
114 | RETVAL |
124 | RETVAL |
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125 | |
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126 | ############################################################################# |
115 | |
127 | |
116 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
128 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::Schnauzer |
117 | |
129 | |
118 | GdkPixbuf_noinc * |
130 | GdkPixbuf_noinc * |
119 | p7_to_pb (int w, int h, guchar *src) |
131 | p7_to_pb (int w, int h, guchar *src) |
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146 | { |
158 | { |
147 | int w = gdk_pixbuf_get_width (pb); |
159 | int w = gdk_pixbuf_get_width (pb); |
148 | int h = gdk_pixbuf_get_height (pb); |
160 | int h = gdk_pixbuf_get_height (pb); |
149 | int x, y; |
161 | int x, y; |
150 | guchar *dst; |
162 | guchar *dst; |
151 | int bpp = gdk_pixbuf_get_has_alpha (pb) ? 4 : 3; |
163 | int bpp = gdk_pixbuf_get_n_channels (pb); |
152 | guchar *src = gdk_pixbuf_get_pixels (pb); |
164 | guchar *src = gdk_pixbuf_get_pixels (pb); |
153 | int sstr = gdk_pixbuf_get_rowstride (pb); |
165 | int sstr = gdk_pixbuf_get_rowstride (pb); |
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166 | int Er[IW], Eg[IW], Eb[IW]; |
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167 | int seed = 77; |
154 | |
168 | |
155 | RETVAL = newSV (w * h); |
169 | RETVAL = newSV (w * h); |
156 | SvPOK_only (RETVAL); |
170 | SvPOK_only (RETVAL); |
157 | SvCUR_set (RETVAL, w * h); |
171 | SvCUR_set (RETVAL, w * h); |
158 | |
172 | |
159 | dst = SvPVX (RETVAL); |
173 | dst = SvPVX (RETVAL); |
160 | |
174 | |
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175 | memset (Er, 0, sizeof (int) * IW); |
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176 | memset (Eg, 0, sizeof (int) * IW); |
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177 | memset (Eb, 0, sizeof (int) * IW); |
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178 | |
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179 | /* some primitive error distribution + random dithering */ |
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180 | |
161 | for (y = 0; y < h; y++) |
181 | for (y = 0; y < h; y++) |
162 | { |
182 | { |
163 | /* use a very primitive form of error distribution. */ |
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164 | int er = 0, eg = 0, eb = 0; |
183 | int er = 0, eg = 0, eb = 0; |
165 | |
184 | |
166 | for (x = 0; x < w; x++) |
185 | for (x = 0; x < w; x++) |
167 | { |
186 | { |
168 | int r, g, b; |
187 | int r, g, b; |
169 | guchar *p = src + x * bpp + y * sstr; |
188 | guchar *p = src + x * bpp + y * sstr; |
170 | |
189 | |
171 | r = ((p[0] + er) * 7 + 128) / 255; |
190 | r = ((p[0] + er + Er[x]) * 7 + 128) / 255; |
172 | g = ((p[1] + eg) * 7 + 128) / 255; |
191 | g = ((p[1] + eg + Eg[x]) * 7 + 128) / 255; |
173 | b = ((p[2] + eb) * 3 + 128) / 255; |
192 | b = ((p[2] + eb + Eb[x]) * 3 + 128) / 255; |
174 | |
193 | |
175 | r = r > 7 ? 7 : r < 0 ? 0 : r; |
194 | r = r > 7 ? 7 : r < 0 ? 0 : r; |
176 | g = g > 7 ? 7 : g < 0 ? 0 : g; |
195 | g = g > 7 ? 7 : g < 0 ? 0 : g; |
177 | b = b > 3 ? 3 : b < 0 ? 0 : b; |
196 | b = b > 3 ? 3 : b < 0 ? 0 : b; |
178 | |
197 | |
179 | er += p[0] - (r * 255 + 4) / 7; |
198 | er += p[0] - (r * 255 + 4) / 7; |
180 | eg += p[1] - (g * 255 + 4) / 7; |
199 | eg += p[1] - (g * 255 + 4) / 7; |
181 | eb += p[2] - (b * 255 + 2) / 3; |
200 | eb += p[2] - (b * 255 + 2) / 3; |
182 | |
201 | |
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202 | Er[x] = er / 2; er -= er / 2 + RAND % 7 - 3; |
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203 | Eg[x] = eg / 2; eg -= eg / 2 + RAND % 7 - 3; |
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204 | Eb[x] = eb / 2; eb -= eb / 2 + RAND % 7 - 3; |
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205 | |
183 | *dst++ = r << 5 | g << 2 | b; |
206 | *dst++ = r << 5 | g << 2 | b; |
184 | } |
207 | } |
185 | } |
208 | } |
186 | } |
209 | } |
187 | OUTPUT: |
210 | OUTPUT: |
188 | RETVAL |
211 | RETVAL |
189 | |
212 | |
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213 | ############################################################################# |
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214 | |
190 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
215 | MODULE = Gtk2::CV PACKAGE = Gtk2::CV::PostScript |
191 | |
216 | |
192 | void |
217 | void |
193 | dump_pb (PerlIO *fp, GdkPixbuf *pb) |
218 | dump_ascii85 (PerlIO *fp, GdkPixbuf *pb) |
194 | CODE: |
219 | CODE: |
195 | { |
220 | { |
196 | int w = gdk_pixbuf_get_width (pb); |
221 | int w = gdk_pixbuf_get_width (pb); |
197 | int h = gdk_pixbuf_get_height (pb); |
222 | int h = gdk_pixbuf_get_height (pb); |
198 | int x, y, i; |
223 | int x, y, i; |
199 | guchar *dst; |
224 | guchar *dst; |
200 | int bpp = gdk_pixbuf_get_has_alpha (pb) ? 4 : 3; |
225 | int bpp = gdk_pixbuf_get_n_channels (pb); |
201 | guchar *src = gdk_pixbuf_get_pixels (pb); |
226 | guchar *src = gdk_pixbuf_get_pixels (pb); |
202 | int sstr = gdk_pixbuf_get_rowstride (pb); |
227 | int sstr = gdk_pixbuf_get_rowstride (pb); |
203 | |
228 | |
204 | a85_init (); |
229 | a85_init (); |
205 | |
230 | |
206 | for (y = 0; y < h; y++) |
231 | for (y = 0; y < h; y++) |
207 | for (x = 0; x < w; x++) |
232 | for (x = 0; x < w; x++) |
208 | for (i = 0; i < 3; i++) |
233 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
209 | a85_push (fp, src [x * bpp + y * sstr + i]); |
234 | a85_push (fp, src [x * bpp + y * sstr + i]); |
210 | |
235 | |
211 | a85_finish (fp); |
236 | a85_finish (fp); |
212 | } |
237 | } |
213 | |
238 | |
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239 | void |
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240 | dump_binary (PerlIO *fp, GdkPixbuf *pb) |
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241 | CODE: |
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242 | { |
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243 | int w = gdk_pixbuf_get_width (pb); |
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244 | int h = gdk_pixbuf_get_height (pb); |
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245 | int x, y, i; |
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246 | guchar *dst; |
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247 | int bpp = gdk_pixbuf_get_n_channels (pb); |
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248 | guchar *src = gdk_pixbuf_get_pixels (pb); |
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249 | int sstr = gdk_pixbuf_get_rowstride (pb); |
214 | |
250 | |
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251 | for (y = 0; y < h; y++) |
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252 | for (x = 0; x < w; x++) |
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253 | for (i = 0; i < (bpp < 3 ? 1 : 3); i++) |
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254 | PerlIO_putc (fp, src [x * bpp + y * sstr + i]); |
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255 | } |
215 | |
256 | |
216 | |
257 | |
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258 | |
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259 | |