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Improve work with threads in NoiseTexture::init()

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This commit is contained in:
Sergey Lipskiy 2017-03-23 15:35:22 +07:00
parent 911e5490f1
commit e576e2c0b9
1 changed files with 5 additions and 3 deletions
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8
src/NoiseTexture.cpp
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@ -50,8 +50,8 @@ void NoiseTexture::init()
vec.resize(NOISE_TEX_WIDTH * NOISE_TEX_HEIGHT); vec.resize(NOISE_TEX_WIDTH * NOISE_TEX_HEIGHT);
const u32 concurentThreadsSupported = std::thread::hardware_concurrency(); const u32 concurentThreadsSupported = std::thread::hardware_concurrency();
if (concurentThreadsSupported > 2) { if (concurentThreadsSupported > 1) {
const u32 numThreads = concurentThreadsSupported - 1; const u32 numThreads = concurentThreadsSupported;
u32 chunk = NOISE_TEX_NUM / numThreads; u32 chunk = NOISE_TEX_NUM / numThreads;
if (NOISE_TEX_NUM % numThreads != 0) if (NOISE_TEX_NUM % numThreads != 0)
chunk++; chunk++;
@ -71,7 +71,9 @@ void NoiseTexture::init()
start, start,
std::min(start + chunk, static_cast<u32>(texData.size()))); std::min(start + chunk, static_cast<u32>(texData.size())));
start += chunk; start += chunk;
} while (start < NOISE_TEX_NUM); } while (start < NOISE_TEX_NUM - chunk);
FillTextureData(generator(), &texData, start, texData.size());
for (auto& t : threads) for (auto& t : threads)
t.join(); t.join();