108 lines
3.8 KiB
C++
108 lines
3.8 KiB
C++
#include "PaintedGridData.h"
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#include "PackStream.h"
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#include <cstring>
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PaintedGridData::PaintedGridData() {
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rows_count = 0;
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rows = (HeightMapRow *)malloc(sizeof(HeightMapRow));
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memsize = 0;
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}
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PaintedGridData::~PaintedGridData() {
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clear();
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free(rows);
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}
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void PaintedGridData::copy(PaintedGridData *destination) const {
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int i, j, n;
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size_t size;
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destination->clear();
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destination->rows_count = this->rows_count;
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if (destination->rows_count > 0) {
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size = sizeof(HeightMapRow) * destination->rows_count;
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destination->rows = (HeightMapRow *)realloc(destination->rows, size);
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destination->memsize += size;
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for (i = 0; i < destination->rows_count; i++) {
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destination->rows[i].y = this->rows[i].y;
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destination->rows[i].pixel_groups_count = this->rows[i].pixel_groups_count;
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size = sizeof(HeightMapPixelGroup) * destination->rows[i].pixel_groups_count;
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destination->rows[i].pixel_groups = (HeightMapPixelGroup *)malloc(size);
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destination->memsize += size;
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for (j = 0; j < destination->rows[i].pixel_groups_count; j++) {
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destination->rows[i].pixel_groups[j].xstart = this->rows[i].pixel_groups[j].xstart;
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destination->rows[i].pixel_groups[j].xend = this->rows[i].pixel_groups[j].xend;
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n = destination->rows[i].pixel_groups[j].xend - destination->rows[i].pixel_groups[j].xstart + 1;
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size = sizeof(double) * n;
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destination->rows[i].pixel_groups[j].height = (double *)malloc(size);
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destination->memsize += size;
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memcpy(destination->rows[i].pixel_groups[j].height, this->rows[i].pixel_groups[j].height, size);
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}
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}
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}
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}
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void PaintedGridData::save(PackStream *stream) const {
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int i, j, k;
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stream->write(&rows_count);
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for (i = 0; i < rows_count; i++) {
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stream->write(&rows[i].y);
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stream->write(&rows[i].pixel_groups_count);
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for (j = 0; j < rows[i].pixel_groups_count; j++) {
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stream->write(&rows[i].pixel_groups[j].xstart);
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stream->write(&rows[i].pixel_groups[j].xend);
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for (k = 0; k < rows[i].pixel_groups[j].xend - rows[i].pixel_groups[j].xstart; k++) {
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stream->write(&rows[i].pixel_groups[j].height[k]);
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}
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}
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}
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}
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void PaintedGridData::load(PackStream *stream) {
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int i, j, k, n;
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size_t size;
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clear();
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stream->read(&rows_count);
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if (rows_count > 0) {
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size = sizeof(HeightMapRow) * rows_count;
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rows = (HeightMapRow *)realloc(rows, size);
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memsize += size;
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for (i = 0; i < rows_count; i++) {
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stream->read(&rows[i].y);
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stream->read(&rows[i].pixel_groups_count);
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size = sizeof(HeightMapPixelGroup) * rows[i].pixel_groups_count;
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rows[i].pixel_groups = (HeightMapPixelGroup *)malloc(size);
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memsize += size;
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for (j = 0; j < rows[i].pixel_groups_count; j++) {
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stream->read(&rows[i].pixel_groups[j].xstart);
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stream->read(&rows[i].pixel_groups[j].xend);
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n = rows[i].pixel_groups[j].xend - rows[i].pixel_groups[j].xstart;
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size = sizeof(double) * n;
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rows[i].pixel_groups[j].height = (double *)malloc(size);
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memsize += size;
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for (k = 0; k < n; k++) {
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stream->read(&rows[i].pixel_groups[j].height[k]);
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}
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}
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}
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}
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}
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void PaintedGridData::clear() {
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int i, j;
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for (i = 0; i < rows_count; i++) {
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for (j = 0; j < rows[i].pixel_groups_count; j++) {
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free(rows[i].pixel_groups[j].height);
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}
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free(rows[i].pixel_groups);
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}
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rows_count = 0;
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free(rows);
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rows = (HeightMapRow *)malloc(sizeof(HeightMapRow));
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memsize = 0;
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}
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