/** Copy constructor.
* Creates a colormap in shared memory for the given LUT ID and copies the data of the
* given existing colormap.
* @param cm color mape to copy from
*/
YuvColormap::YuvColormap(const YuvColormap &cm)
{
constructor(cm.depth(), cm.width(), cm.height());
memcpy(lut_, cm.lut_, lut_size_);
}
int
main(int argc, char **argv)
{
const char *filename = "qatest.colormap";
if ( argc > 1 ) {
filename = argv[1];
}
printf("Creating simple one-plane colormap\n");
YuvColormap *cm = new YuvColormap();
for (unsigned int u = 100; u < 150; ++u) {
for (unsigned int v = 100; v < 150; ++v) {
cm->set(128, u, v, C_ORANGE);
}
}
unsigned char *imgb = malloc_buffer(YUV422_PLANAR, cm->width() * 2, cm->height() * 2);
cm->to_image(imgb);
ImageDisplay *imgd = new ImageDisplay(cm->width() * 2, cm->height() * 2);
imgd->show(imgb);
imgd->loop_until_quit();
delete cm;
printf("Trying to create colormap with illegal depth, should throw an exception..");
try {
cm = new YuvColormap(3);
printf(" Test failed, colormap was created\n");
delete cm;
} catch (Exception &e) {
printf(" Test succeeded, caught exception\n");
}
printf("Trying colormap with depth of %u\n", BIGDEPTH);
cm = new YuvColormap(BIGDEPTH);
for (unsigned int d = 0; d < cm->depth(); ++d) {
unsigned int y = 256 / cm->depth() * d;
printf("d=%u y=%u u=[%u,%u] v=[%u,%u]\n", d, y,
cm->depth() * d, cm->depth() * (d+1), cm->depth() * d, cm->depth() * (d+1));
for (unsigned int u = cm->deepness() / cm->depth() * d; u < cm->deepness() / cm->depth() * (d+1); ++u) {
for (unsigned int v = cm->deepness() / cm->depth() * d; v < cm->deepness() / cm->depth() * (d+1); ++v) {
cm->set(y, u, v, C_ORANGE);
}
}
cm->to_image(imgb, d);
imgd->show(imgb);
imgd->loop_until_quit();
}
printf("Saving colormap to a file\n");
ColormapFile cmf;
cmf.add_colormap(cm);
cmf.write(filename);
ColormapFile::ColormapBlockVector *blocks = cmf.colormap_blocks();
printf("Written, created %zu blocks\n", blocks->size());
delete blocks;
delete cm;
cmf.clear();
printf("Reading colormap from file\n");
cmf.read(filename);
Colormap *tcm = cmf.get_colormap();
if ( (cm = dynamic_cast<YuvColormap *>(tcm)) == 0 ) {
printf("Error, did not get valid yuv colormap\n");
} else {
printf("Showing all %u colormap levels\n", cm->depth());
for (unsigned int d = 0; d < cm->depth(); ++d) {
cm->to_image(imgb, d);
imgd->show(imgb);
imgd->loop_until_quit();
}
}
delete cm;
unsigned int depth = 4, width = 128, height = 128;
printf("Trying colormap with low resolution, choosing %dx%dx%d\n", depth, width, height);
cm = new YuvColormap(depth, width, height);
printf("YuvColormap dimensions: %dx%dx%d\n", cm->depth(), cm->width(), cm->height());
ColormapFile cmfr(depth, width, height);
delete cm;
cmfr.write(filename);
cmfr.clear();
cmfr.read(filename);
cm = dynamic_cast<YuvColormap *>(cmfr.get_colormap());
printf("Read back colormap dimensions %dx%dx%d\n",
cm->depth(), cm->width(), cm->height());
delete cm;
//delete imgd;
//free(imgb);
return 0;
}