static int TrySparseImageCopyPixels(const IceTImage image,
IceTSizeType start,
IceTSizeType end)
{
IceTVoid *full_sparse_buffer;
IceTSparseImage full_sparse;
IceTVoid *compress_sub_buffer;
IceTSparseImage compress_sub;
IceTVoid *sparse_copy_buffer;
IceTSparseImage sparse_copy;
IceTSizeType width = icetImageGetWidth(image);
IceTSizeType height = icetImageGetHeight(image);
IceTSizeType sub_size = end - start;
int result;
printf("Trying sparse image copy from %d to %d\n", start, end);
full_sparse_buffer = malloc(icetSparseImageBufferSize(width, height));
full_sparse = icetSparseImageAssignBuffer(full_sparse_buffer,width,height);
compress_sub_buffer = malloc(icetSparseImageBufferSize(sub_size, 1));
compress_sub = icetSparseImageAssignBuffer(compress_sub_buffer,
sub_size, 1);
sparse_copy_buffer = malloc(icetSparseImageBufferSize(sub_size, 1));
sparse_copy = icetSparseImageAssignBuffer(sparse_copy_buffer,
sub_size, 1);
icetCompressSubImage(image, start, sub_size, compress_sub);
icetCompressImage(image, full_sparse);
icetSparseImageCopyPixels(full_sparse, start, sub_size, sparse_copy);
result = CompareSparseImages(compress_sub, sparse_copy);
free(full_sparse_buffer);
free(compress_sub_buffer);
free(sparse_copy_buffer);
return result;
}
static void rtsi_handleDataFunc(void *inSparseImageBuffer, IceTInt src) {
if (inSparseImageBuffer == NULL) {
/* Superfluous call from send to self. */
if (!rtsi_first) {
icetRaiseError("Unexpected callback order"
" in icetRenderTransferSparseImages.",
ICET_SANITY_CHECK_FAIL);
}
} else {
IceTSparseImage inSparseImage
= icetSparseImageUnpackageFromReceive(inSparseImageBuffer);
if (rtsi_first) {
IceTSizeType num_pixels
= icetSparseImageGetNumPixels(inSparseImage);
icetSparseImageCopyPixels(inSparseImage,
0,
num_pixels,
rtsi_workingImage);
} else {
IceTInt rank;
const IceTInt *process_orders;
IceTSparseImage old_workingImage;
icetGetIntegerv(ICET_RANK, &rank);
process_orders = icetUnsafeStateGetInteger(ICET_PROCESS_ORDERS);
if (process_orders[src] < process_orders[rank]) {
icetCompressedCompressedComposite(inSparseImage,
rtsi_workingImage,
rtsi_availableImage);
} else {
icetCompressedCompressedComposite(rtsi_workingImage,
inSparseImage,
rtsi_availableImage);
}
old_workingImage = rtsi_workingImage;
rtsi_workingImage = rtsi_availableImage;
rtsi_availableImage = old_workingImage;
}
}
rtsi_first = ICET_FALSE;
}
