56 lines
2 KiB
C++
56 lines
2 KiB
C++
// This code is in the public domain -- castano@gmail.com
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#pragma once
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#ifndef NV_MESH_ATLASPACKER_H
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#define NV_MESH_ATLASPACKER_H
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#include "nvcore/RadixSort.h"
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#include "nvimage/BitMap.h"
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#include "nvimage/Image.h"
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#include "nvmath/Random.h"
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#include "nvmath/Vector.h"
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#include "nvmesh/nvmesh.h"
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namespace nv {
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class Atlas;
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class Chart;
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struct AtlasPacker {
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AtlasPacker(Atlas *atlas);
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~AtlasPacker();
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void packCharts(int quality, float texelArea, bool blockAligned, bool conservative);
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float computeAtlasUtilization() const;
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private:
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void findChartLocation(int quality, const BitMap *bitmap, Vector2::Arg extents, int w, int h, int *best_x, int *best_y, int *best_w, int *best_h, int *best_r);
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void findChartLocation_bruteForce(const BitMap *bitmap, Vector2::Arg extents, int w, int h, int *best_x, int *best_y, int *best_w, int *best_h, int *best_r);
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void findChartLocation_random(const BitMap *bitmap, Vector2::Arg extents, int w, int h, int *best_x, int *best_y, int *best_w, int *best_h, int *best_r, int minTrialCount);
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void drawChartBitmapDilate(const Chart *chart, BitMap *bitmap, int padding);
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void drawChartBitmap(const Chart *chart, BitMap *bitmap, const Vector2 &scale, const Vector2 &offset);
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bool canAddChart(const BitMap *bitmap, int w, int h, int x, int y, int r);
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void addChart(const BitMap *bitmap, int w, int h, int x, int y, int r, Image *debugOutput);
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//void checkCanAddChart(const Chart * chart, int w, int h, int x, int y, int r);
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void addChart(const Chart *chart, int w, int h, int x, int y, int r, Image *debugOutput);
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static bool checkBitsCallback(void *param, int x, int y, Vector3::Arg bar, Vector3::Arg dx, Vector3::Arg dy, float coverage);
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static bool setBitsCallback(void *param, int x, int y, Vector3::Arg bar, Vector3::Arg dx, Vector3::Arg dy, float coverage);
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private:
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Atlas *m_atlas;
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BitMap m_bitmap;
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//Image m_debug_bitmap;
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RadixSort m_radix;
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uint m_width;
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uint m_height;
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MTRand m_rand;
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};
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} // namespace nv
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#endif // NV_MESH_ATLASPACKER_H
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