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#include <assert.h>
#include "testutils.h"
#include "libvidstab.h"
#include "transformtype_operations.h"
void paintRectangle(unsigned char* buffer, const VSFrameInfo* fi, int x, int y, int sizex, int sizey, unsigned char color){
if(x>=0 && x+sizex < fi->width && y>=0 && y+sizey < fi->height){
int i,j;
for(j=y; j < y+sizey; j++){
for(i=x; i<x+sizex; i++){
buffer[j*fi->width + i] = color;
}
}
}
}
/// corr: correlation length of noise
void fillArrayWithNoise(unsigned char* buffer, int length, float corr){
unsigned char avg=randPixel();
int i=0;
if(corr<1) corr=1;
float alpha = 1.0/corr;
for(i=0; i < length; i++){
buffer[i] = avg;
avg = avg * (1.0-alpha) + randPixel()*alpha;
}
}
VSTransform getTestFrameTransform(int i){
VSTransform t = null_transform();
t.x = ( (i%2)==0 ? -1 : 1) *i*5;
t.y = ( (i%3)==0 ? 1 : -1) *i*5;
t.alpha = (i<3 ? 0 : 1) * (i)*1*M_PI/(180.0);
t.zoom = 0;
return t;
}
static int readNumber (const char* filename, FILE *f)
{
int c,n=0;
for(;;) {
c = fgetc(f);
if (c==EOF)
vs_log_error("TEST", "unexpected end of file in '%s'", filename);
if (c >= '0' && c <= '9') n = n*10 + (c - '0');
else {
ungetc (c,f);
return n;
}
}
}
static void skipWhiteSpace (const char* filename, FILE *f)
{
int c,d;
for(;;) {
c = fgetc(f);
if (c==EOF)
vs_log_error("TEST", "unexpected end of file in '%s'", filename);
// skip comments
if (c == '#') {
do {
d = fgetc(f);
if (d==EOF)
vs_log_error("TEST", "unexpected end of file in '%s'", filename);
} while (d != '\n');
continue;
}
if (c > ' ') {
ungetc (c,f);
return;
}
}
}
int loadPGMImage(const char* filename, VSFrame* frame, VSFrameInfo* fi)
{
FILE *f = fopen (filename,"rb");
if (!f) {
vs_log_error("TEST", "Can't open image file '%s'", filename);
return 0;
}
// read in header
if (fgetc(f) != 'P' || fgetc(f) != '2')
vs_log_error("TEST","image file ist not binary PGM (no P5 header) '%s'", filename);
skipWhiteSpace (filename,f);
// read in image parameters
fi->width = readNumber (filename,f);
skipWhiteSpace (filename,f);
fi->height = readNumber (filename,f);
skipWhiteSpace (filename,f);
int max_value = readNumber (filename,f);
// check values
if (fi->width < 1 || fi->height < 1)
vs_log_error("TEST", "bad image file '%s'", filename);
if (max_value != 255)
vs_log_error("TEST", "image file '%s' must have color range 255", filename);
// read either nothing, LF (10), or CR,LF (13,10)
int c = fgetc(f);
if (c == 10) {
// LF
}
else if (c == 13) {
// CR
c = fgetc(f);
if (c != 10) ungetc (c,f);
}
else ungetc (c,f);
// read in rest of data
vsFrameAllocate(frame,fi);
if (fread( frame->data[0], fi->width*fi->height, 1, f) != 1){
vs_log_error("TEST", "Can't read data from image file '%s'", filename);
return 0;
}
fclose (f);
return 1;
}
int storePGMImage(const char* filename, const uint8_t* data, VSFrameInfo fi ) {
FILE *f = fopen (filename,"wb");
if (!f) {
vs_log_error("TEST", "Can't open image file '%s'", filename);
return 0;
}
// write header
fprintf(f,"P5\n");
fprintf(f,"# CREATOR test suite of vid.stab\n");
fprintf(f,"%i %i\n", fi.width, fi.height);
fprintf(f,"255\n");
// write data
if (fwrite( data, fi.width*fi.height, 1, f) != 1){
vs_log_error("TEST", "Can't write to image file '%s'", filename);
return 0;
}
fclose (f);
return 1;
}
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