diff options
Diffstat (limited to 'src/cubeit.c')
| -rw-r--r-- | src/cubeit.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/src/cubeit.c b/src/cubeit.c index 53194c66..814cf68a 100644 --- a/src/cubeit.c +++ b/src/cubeit.c @@ -290,7 +290,11 @@ static void write_slice(const char *filename, double *vals, int z, int x, y; float max = 0.0; int w, h; + int pw, ph; + int zoom = 32; + pw = xs * zoom; + ph = ys * zoom; w = xs; h = ys; @@ -333,7 +337,7 @@ static void write_slice(const char *filename, double *vals, int z, } png_init_io(png_ptr, fh); - png_set_IHDR(png_ptr, info_ptr, w, h, 8, + png_set_IHDR(png_ptr, info_ptr, pw, ph, 8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT); @@ -343,16 +347,18 @@ static void write_slice(const char *filename, double *vals, int z, max /= boost; if ( max <= 6 ) { max = 10; } - for ( y=0; y<h; y++ ) { + for ( y=0; y<ph; y++ ) { - row_pointers[y] = malloc(w*3); + row_pointers[y] = malloc(pw*3); - for ( x=0; x<w; x++ ) { + for ( x=0; x<pw; x++ ) { float r, g, b; float val; + int ax = x / zoom; + int ay = y / zoom; - val = vals[xs*ys*z + xs*y + x]; + val = vals[xs*ys*z + xs*ay + ax]; render_scale(val, max, SCALE_COLOUR, &r, &g, &b); row_pointers[y][3*x] = (png_byte)255*r; @@ -362,18 +368,18 @@ static void write_slice(const char *filename, double *vals, int z, } } - for ( y=0; y<h/2+1; y++ ) { + for ( y=0; y<ph/2+1; y++ ) { png_bytep scratch; scratch = row_pointers[y]; - row_pointers[y] = row_pointers[h-y-1]; - row_pointers[h-y-1] = scratch; + row_pointers[y] = row_pointers[ph-y-1]; + row_pointers[ph-y-1] = scratch; } png_set_rows(png_ptr, info_ptr, row_pointers); png_write_png(png_ptr, info_ptr, PNG_TRANSFORM_IDENTITY, NULL); png_destroy_write_struct(&png_ptr, &info_ptr); - for ( y=0; y<h; y++ ) { + for ( y=0; y<ph; y++ ) { free(row_pointers[y]); } free(row_pointers); @@ -614,11 +620,9 @@ int main(int argc, char *argv[]) for ( i=0; i<gs; i++ ) { char line[64]; - float boost; + float boost = 1000.0; snprintf(line, 63, "slice-%i.png", i); - for ( boost=1; boost<1000; boost+=50 ) { - write_slice(line, vals, i, gs, gs, gs, boost); - } + write_slice(line, vals, i, gs, gs, gs, boost); } if ( config_angles ) { |