64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
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// 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 "nvmath/Vector.h"
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#include "nvmath/Random.h"
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#include "nvimage/BitMap.h"
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#include "nvimage/Image.h"
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#include "nvmesh/nvmesh.h"
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namespace nv
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{
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class Atlas;
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class Chart;
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struct AtlasPacker
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{
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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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} // nv namespace
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#endif // NV_MESH_ATLASPACKER_H
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