| 1 | #include <assert.h> |
| 2 | |
| 3 | #include "testutils.h" |
| 4 | #include "libvidstab.h" |
| 5 | #include "transformtype_operations.h" |
| 6 | |
| 7 | void paintRectangle(unsigned char* buffer, const VSFrameInfo* fi, int x, int y, int sizex, int sizey, unsigned char color){ |
| 8 | if(x>=0 && x+sizex < fi->width && y>=0 && y+sizey < fi->height){ |
| 9 | int i,j; |
| 10 | for(j=y; j < y+sizey; j++){ |
| 11 | for(i=x; i<x+sizex; i++){ |
| 12 | buffer[j*fi->width + i] = color; |
| 13 | } |
| 14 | } |
| 15 | |
| 16 | } |
| 17 | } |
| 18 | |
| 19 | /// corr: correlation length of noise |
| 20 | void fillArrayWithNoise(unsigned char* buffer, int length, float corr){ |
| 21 | unsigned char avg=randPixel(); |
| 22 | int i=0; |
| 23 | if(corr<1) corr=1; |
| 24 | float alpha = 1.0/corr; |
| 25 | for(i=0; i < length; i++){ |
| 26 | buffer[i] = avg; |
| 27 | avg = avg * (1.0-alpha) + randPixel()*alpha; |
| 28 | } |
| 29 | } |
| 30 | |
| 31 | VSTransform getTestFrameTransform(int i){ |
| 32 | VSTransform t = null_transform(); |
| 33 | t.x = ( (i%2)==0 ? -1 : 1) *i*5; |
| 34 | t.y = ( (i%3)==0 ? 1 : -1) *i*5; |
| 35 | t.alpha = (i<3 ? 0 : 1) * (i)*1*M_PI/(180.0); |
| 36 | t.zoom = 0; |
| 37 | return t; |
| 38 | } |
| 39 | |
| 40 | static int readNumber (const char* filename, FILE *f) |
| 41 | { |
| 42 | int c,n=0; |
| 43 | for(;;) { |
| 44 | c = fgetc(f); |
| 45 | if (c==EOF) |
| 46 | vs_log_error("TEST", "unexpected end of file in '%s'", filename); |
| 47 | if (c >= '0' && c <= '9') n = n*10 + (c - '0'); |
| 48 | else { |
| 49 | ungetc (c,f); |
| 50 | return n; |
| 51 | } |
| 52 | } |
| 53 | } |
| 54 | |
| 55 | |
| 56 | static void skipWhiteSpace (const char* filename, FILE *f) |
| 57 | { |
| 58 | int c,d; |
| 59 | for(;;) { |
| 60 | c = fgetc(f); |
| 61 | if (c==EOF) |
| 62 | vs_log_error("TEST", "unexpected end of file in '%s'", filename); |
| 63 | |
| 64 | // skip comments |
| 65 | if (c == '#') { |
| 66 | do { |
| 67 | d = fgetc(f); |
| 68 | if (d==EOF) |
| 69 | vs_log_error("TEST", "unexpected end of file in '%s'", filename); |
| 70 | } while (d != '\n'); |
| 71 | continue; |
| 72 | } |
| 73 | |
| 74 | if (c > ' ') { |
| 75 | ungetc (c,f); |
| 76 | return; |
| 77 | } |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | int loadPGMImage(const char* filename, VSFrame* frame, VSFrameInfo* fi) |
| 82 | { |
| 83 | FILE *f = fopen (filename,"rb"); |
| 84 | if (!f) { |
| 85 | vs_log_error("TEST", "Can't open image file '%s'", filename); |
| 86 | return 0; |
| 87 | } |
| 88 | |
| 89 | // read in header |
| 90 | if (fgetc(f) != 'P' || fgetc(f) != '2') |
| 91 | vs_log_error("TEST","image file ist not binary PGM (no P5 header) '%s'", filename); |
| 92 | skipWhiteSpace (filename,f); |
| 93 | |
| 94 | // read in image parameters |
| 95 | fi->width = readNumber (filename,f); |
| 96 | skipWhiteSpace (filename,f); |
| 97 | fi->height = readNumber (filename,f); |
| 98 | skipWhiteSpace (filename,f); |
| 99 | int max_value = readNumber (filename,f); |
| 100 | |
| 101 | // check values |
| 102 | if (fi->width < 1 || fi->height < 1) |
| 103 | vs_log_error("TEST", "bad image file '%s'", filename); |
| 104 | if (max_value != 255) |
| 105 | vs_log_error("TEST", "image file '%s' must have color range 255", filename); |
| 106 | |
| 107 | // read either nothing, LF (10), or CR,LF (13,10) |
| 108 | int c = fgetc(f); |
| 109 | if (c == 10) { |
| 110 | // LF |
| 111 | } |
| 112 | else if (c == 13) { |
| 113 | // CR |
| 114 | c = fgetc(f); |
| 115 | if (c != 10) ungetc (c,f); |
| 116 | } |
| 117 | else ungetc (c,f); |
| 118 | |
| 119 | |
| 120 | // read in rest of data |
| 121 | vsFrameAllocate(frame,fi); |
| 122 | if (fread( frame->data[0], fi->width*fi->height, 1, f) != 1){ |
| 123 | vs_log_error("TEST", "Can't read data from image file '%s'", filename); |
| 124 | return 0; |
| 125 | } |
| 126 | fclose (f); |
| 127 | return 1; |
| 128 | } |
| 129 | |
| 130 | |
| 131 | int storePGMImage(const char* filename, const uint8_t* data, VSFrameInfo fi ) { |
| 132 | FILE *f = fopen (filename,"wb"); |
| 133 | if (!f) { |
| 134 | vs_log_error("TEST", "Can't open image file '%s'", filename); |
| 135 | return 0; |
| 136 | } |
| 137 | |
| 138 | // write header |
| 139 | fprintf(f,"P5\n"); |
| 140 | fprintf(f,"# CREATOR test suite of vid.stab\n"); |
| 141 | fprintf(f,"%i %i\n", fi.width, fi.height); |
| 142 | fprintf(f,"255\n"); |
| 143 | |
| 144 | // write data |
| 145 | if (fwrite( data, fi.width*fi.height, 1, f) != 1){ |
| 146 | vs_log_error("TEST", "Can't write to image file '%s'", filename); |
| 147 | return 0; |
| 148 | } |
| 149 | fclose (f); |
| 150 | return 1; |
| 151 | } |
| 152 | |