Differential D1816 Diff 9726 ps/trunk/source/graphics/MapIO.cpp

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ps/trunk/source/graphics/MapIO.cpp

/* Copyright (C) 2018 Wildfire Games.		/* Copyright (C) 2019 Wildfire Games.
* This file is part of 0 A.D.		* This file is part of 0 A.D.
*		*
* 0 A.D. is free software: you can redistribute it and/or modify		* 0 A.D. is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by		* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or		* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.		* (at your option) any later version.
*		*
* 0 A.D. is distributed in the hope that it will be useful,		* 0 A.D. is distributed in the hope that it will be useful,
▲ Show 20 Lines • Show All 70 Lines • ▼ Show 20 Lines	Status ParseHeightmapImage(const shared_ptr<u8>& fileData, size_t fileSize, std::vector<u16>& heightmap)
// Copy image data into the heightmap		// Copy image data into the heightmap
heightmap.resize(SQR(tileSize + 1));		heightmap.resize(SQR(tileSize + 1));
for (ssize_t y = 0; y < tileSize + 1; ++y)		for (ssize_t y = 0; y < tileSize + 1; ++y)
for (ssize_t x = 0; x < tileSize + 1; ++x)		for (ssize_t x = 0; x < tileSize + 1; ++x)
{		{
// Repeat the last pixel of the image for the last vertex of the heightmap		// Repeat the last pixel of the image for the last vertex of the heightmap
int offset = std::min(y, tileSize - 1) * mapLineSkip + std::min(x, tileSize - 1) * bytesPP;		int offset = std::min(y, tileSize - 1) * mapLineSkip + std::min(x, tileSize - 1) * bytesPP;

// Pick color channel with highest value		heightmap[(tileSize - y) * (tileSize + 1) + x] = static_cast<u16>(256) * std::max({
u16 value = std::max({mapdata[offset], mapdata[offset + bytesPP], mapdata[offset + bytesPP * 2]});		mapdata[offset],
value = mapdata[offset];		mapdata[offset + bytesPP],
		mapdata[offset + bytesPP * 2]});
heightmap[(tileSize - y) * (tileSize + 1) + x] = clamp(value * 256, 0, 65535);
}		}

return INFO::OK;		return INFO::OK;
}		}