/*
 * optdebug.c

 * Optimal encoder debugging stubs
*/
#include <string.h>
#include <stdio.h>
#include <crtdbg.h>
#include "deflate.h"


#ifdef _DEBUG
static void OptimalEncoderVerifyTreeStructure(t_encoder_context *context, byte val1, byte val2, long where)
{
    long left, right;

    if (where == 0)
        return;

    _ASSERT(context->optimal_encoder->window[where] == val1);
    _ASSERT(context->optimal_encoder->window[where+1] == val2);

    left = context->optimal_encoder->search_left[where];
    right = context->optimal_encoder->search_right[where];

    OptimalEncoderVerifyTreeStructure(context, val1, val2, left);
    OptimalEncoderVerifyTreeStructure(context, val1, val2, right);
}


void OptimalEncoderVerifyHashes(t_encoder_context *context, long bufpos)
{
    long i;

    for (i = 0; i < NUM_DIRECT_LOOKUP_TABLE_ELEMENTS; i++)
    {
        long    where = context->optimal_encoder->search_tree_root[i];
        USHORT    tree_to_use;

        if (where == 0)
            continue;

        tree_to_use = *((USHORT UNALIGNED *) &context->optimal_encoder->window[where]);

        _ASSERT(where < bufpos);
        _ASSERT(tree_to_use == i);

        OptimalEncoderVerifyTreeStructure(context, context->optimal_encoder->window[where], context->optimal_encoder->window[where+1], where);
    }
}
#endif