1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
|
// 242.eclipse0303 -- does meta-imaging on an input image using an inversion threshhold.
// by r. luke dubois (luke@music.columbia.edu),
// computer music center, columbia university, 2001.
// grid quantization algorithm massively improved by jeremy bernstein, bootsquadresearch.
//
// Pd / Framestein port by Olaf Matthes <olaf.matthes@gmx.de>, June 2002
//
// objects and source are provided without warranty of any kind, express or implied.
//
// usage: eclipse <red> <green> <blue> <rows> <columns> <tint> <invert> <thresh>
//
#include <stdio.h>
#include <string.h>
#include "plugin.h"
INFO("242.eclipse0303 -- does meta-imaging on an input image using an inversion threshhold")
// the process image routines work like this:
//
// two pointers (src and src2) access the pixels in the input image
// src controls the output of the smaller grids, src2 controls the tinting from
// the upper-left corner of the point in the image that the grid is supposed to represent.
//
// the grid dimensions are computed by the size of the input image and are used to define
// the size of each pixel in the grid (which is why some row and columns combinations
// leave orphaned pixels on the edges).
// the loop goes like this:
//
// do each row {
// do each column {
// get the 'tint pixel' for that frame;
//
// do the height within each meta-frame {
// do the width within each meta-frame {
// output the pixels for each frame, tinting it;
// }
// }
// }
// }
//
//
void perform_effect(struct frame f, struct args a) // color tints color
{
short i, i1, j, j1, r, c, src2[2];
short rows, columns, rowstep, colstep, rowoffset, coloffset;
short cut, flip, tint, inv, thresh;
byte red, green, blue, check, r2, g2, b2;
byte bits = f.pixelformat/8;
byte redpix, greenpix, bluepix; // the color values
pixel16 *pix_16, *pix2_16;
pixel24 *pix_24, *pix2_24;
pixel32 *pix_32, *pix2_32;
char *t;
// get params
if(!a.s) return;
red = atoi(a.s);
if(!(t = strstr(a.s, " "))) return;
green = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
blue = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
rows = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
columns = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
tint = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
inv = atoi(t+1);
if(!(t = strstr(t+1, " "))) return;
thresh = atoi(t+1);
printf("eclipse03: r%d g%d b%d - r%d c%d - t%d i%d t%d\n",
red, green, blue, rows, columns, tint, inv, thresh);
rowstep = (f.height / rows) + .5;
colstep = (f.width / columns) + .5;
if ( rows > (f.height * .1) )
rowoffset = rows - (f.height * .1);
else
rowoffset = 1;
if ( columns > (f.width * .1) )
coloffset = columns - (f.width * .1);
else
coloffset = 1;
if (thresh < 0) flip = 1; else flip = 0;
for (r = 0; r <= ( rows + rowoffset ); r++ )
{
for(i = 0, i1 = ( r * rowstep ); i < f.height; i+=rows, i1++)
{
for ( c = 0; c <= columns + coloffset; c++ )
{
switch (f.pixelformat)
{
case 16:
src2[0] = c * colstep;
src2[1] = r * rowstep;
pix2_16 = scanline16(f, src2[1]);
r2 = r16(pix2_16[src2[0]]);
g2 = g16(pix2_16[src2[0]]);
b2 = b16(pix2_16[src2[0]]);
if (((r2 + g2 + b2) / 3.0) >= fabs(thresh)) cut = 1;
if (!tint) r2 = g2 = b2 = 0;
for(j = 0, j1 = c * colstep; j < f.width; j += columns, j1++)
{
if ( j1 >= f.width )
goto dink;
if ( i1 >= f.height )
goto yoink;
pix_16 = scanline16(f, i1);
if ((cut && !flip) || (!cut && flip)) {
redpix = r16(pix_16[j1]) + r2 + red;
greenpix = g16(pix_16[j1]) + g2 + green;
bluepix = b16(pix_16[j1]) + + b2 + blue;
}
else
{
if (!inv)
{
redpix = 255 - r16(pix_16[j1]) + r2 + red;
greenpix = 255 - g16(pix_16[j1]) + g2 + green;
bluepix = 255 - b16(pix_16[j1]) + b2 + blue;
}
else
{
redpix = 255 - r16(pix_16[j1]) + r2 - red;
greenpix = 255 - g16(pix_16[j1]) + g2 - green;
bluepix = 255 - b16(pix_16[j1]) + b2 - blue;
}
}
pix_16[j1] = rgbtocolor16(redpix, greenpix, bluepix);
}
break;
case 24:
src2[0] = c * colstep;
src2[1] = r * rowstep;
pix2_24 = scanline24(f, src2[1]);
r2 = r24(pix2_24[src2[0]]);
g2 = g24(pix2_24[src2[0]]);
b2 = b24(pix2_24[src2[0]]);
if (((r2 + g2 + b2) / 3.0) >= fabs(thresh)) cut = 1;
if (!tint) r2 = g2 = b2 = 0;
for(j = 0, j1 = c * colstep; j < f.width; j += columns, j1++)
{
if ( j1 >= f.width )
goto dink;
if ( i1 >= f.height )
goto yoink;
pix_24 = scanline24(f, i1);
if ((cut && !flip) || (!cut && flip)) {
redpix = r24(pix_24[j1]) + r2 + red;
greenpix = g24(pix_24[j1]) + g2 + green;
bluepix = b24(pix_24[j1]) + + b2 + blue;
}
else
{
if (!inv)
{
redpix = 255 - r24(pix_24[j1]) + r2 + red;
greenpix = 255 - g24(pix_24[j1]) + g2 + green;
bluepix = 255 - b24(pix_24[j1]) + b2 + blue;
}
else
{
redpix = 255 - r24(pix_24[j1]) + r2 - red;
greenpix = 255 - g24(pix_24[j1]) + g2 - green;
bluepix = 255 - b24(pix_24[j1]) + b2 - blue;
}
}
pix_24[j1] = rgbtocolor24(redpix, greenpix, bluepix);
}
break;
case 32:
src2[0] = c * colstep;
src2[1] = r * rowstep;
pix2_32 = scanline32(f, src2[1]);
r2 = r32(pix2_32[src2[0]]);
g2 = g32(pix2_32[src2[0]]);
b2 = b32(pix2_32[src2[0]]);
if (((r2 + g2 + b2) / 3.0) >= fabs(thresh)) cut = 1;
if (!tint) r2 = g2 = b2 = 0;
for(j = 0, j1 = c * colstep; j < f.width; j += columns, j1++)
{
if ( j1 >= f.width )
goto dink;
if ( i1 >= f.height )
goto yoink;
pix_32 = scanline32(f, i1);
if ((cut && !flip) || (!cut && flip)) {
redpix = r32(pix_32[j1]) + r2 + red;
greenpix = g32(pix_32[j1]) + g2 + green;
bluepix = b32(pix_32[j1]) + + b2 + blue;
}
else
{
if (!inv)
{
redpix = 255 - r32(pix_32[j1]) + r2 + red;
greenpix = 255 - g32(pix_32[j1]) + g2 + green;
bluepix = 255 - b32(pix_32[j1]) + b2 + blue;
}
else
{
redpix = 255 - r32(pix_32[j1]) + r2 - red;
greenpix = 255 - g32(pix_32[j1]) + g2 - green;
bluepix = 255 - b32(pix_32[j1]) + b2 - blue;
}
}
pix_32[j1] = rgbtocolor32(redpix, greenpix, bluepix);
}
break;
}
}
dink:
;
}
}
yoink:
;
}
void perform_copy(struct frame f1, struct frame f2, struct args a)
{
printf("Using eclipse03 as copy operation does nothing!\n");
}
|
