double* generate_average_from_random_set(double* all_r)
{
		// FIXME
	int n=0, j=0, i=0, k=0, m=0, TOT_ITER=10, subDim=0, totSub=0,*subset=NULL; 
	uint64_t host=0;
	double r=0, sum=0, *all_r_new=NULL; 

	subDim = Settings.n_sub_min; 
	totSub = SubStructure.N_sub;

	fprintf(stdout, "\nGenerating random subset from complete set of Haloes.\n");

	subset = (int*) calloc(subDim, sizeof(int)); 
	all_r = (double*) calloc(subDim, sizeof(double));
	all_r_new = (double*) calloc(subDim, sizeof(double));

		for(j=0; j<TOT_ITER; j++)
		{
			subset = generate_random_subset(totSub, subDim, subset);
			subset = int_shellsort(subset, subDim);
	
			for(i=0; i<totSub; i++)
			{
				host = Haloes[i].host;
				if(i==subset[k] && host != Haloes[i].id) 
				{
					sum = 0;

					for(m=0; m<3; m++)
						sum += pow2(Haloes[host].X[m] - Haloes[i].X[m]); 

					r = sqrt(sum);
					all_r[k] = r/Haloes[host].Rvir;
					k++;
				}
			}

			all_r = shellsort(all_r, subDim);

			for(n=0; n<subDim; n++)
			{
				all_r_new[n] += all_r[n];
			}
		}

		for(i=0; i<subDim; i++) 
			all_r_new[i] /= (double) TOT_ITER;

	return all_r_new;
	
	free(subset);
	free(all_r);
	free(all_r_new);
}
 ConcurrentContainersTest()
     : m_rd_device(),
       m_generator(m_rd_device()),
       m_size(kSampleSize),
       m_elem_dist(0, 1000000000),
       m_data(generate_random_data()),
       m_subset_data(generate_random_subset(m_data)),
       m_data_set(m_data.begin(), m_data.end()) {
   for (size_t t = 0; t < kThreads; ++t) {
     for (size_t i = t; i < m_data.size(); i += kThreads) {
       m_samples[t].push_back(m_data[i]);
     }
     for (size_t i = t; i < m_data.size(); i += kThreads) {
       m_subset_samples[t].push_back(m_subset_data[i]);
     }
   }
 }
Example #3
0
static void check(skiatest::Reporter* r,
                  const char path[],
                  SkISize size,
                  bool supportsScanlineDecoding,
                  bool supportsSubsetDecoding,
                  bool supportsIncomplete = true) {

    SkAutoTDelete<SkStream> stream(resource(path));
    if (!stream) {
        SkDebugf("Missing resource '%s'\n", path);
        return;
    }

    SkAutoTDelete<SkCodec> codec(nullptr);
    bool isIncomplete = supportsIncomplete;
    if (isIncomplete) {
        size_t size = stream->getLength();
        SkAutoTUnref<SkData> data((SkData::NewFromStream(stream, 2 * size / 3)));
        codec.reset(SkCodec::NewFromData(data));
    } else {
        codec.reset(SkCodec::NewFromStream(stream.detach()));
    }
    if (!codec) {
        ERRORF(r, "Unable to decode '%s'", path);
        return;
    }

    // Test full image decodes with SkCodec
    SkMD5::Digest codecDigest;
    SkImageInfo info = codec->getInfo().makeColorType(kN32_SkColorType);
    SkBitmap bm;
    SkCodec::Result expectedResult = isIncomplete ? SkCodec::kIncompleteInput : SkCodec::kSuccess;
    test_codec(r, codec.get(), bm, info, size, expectedResult, &codecDigest, nullptr);

    // Scanline decoding follows.
    // Need to call startScanlineDecode() first.
    REPORTER_ASSERT(r, codec->getScanlines(bm.getAddr(0, 0), 1, 0)
            == 0);
    REPORTER_ASSERT(r, codec->skipScanlines(1)
            == 0);

    const SkCodec::Result startResult = codec->startScanlineDecode(info);
    if (supportsScanlineDecoding) {
        bm.eraseColor(SK_ColorYELLOW);

        REPORTER_ASSERT(r, startResult == SkCodec::kSuccess);

        for (int y = 0; y < info.height(); y++) {
            const int lines = codec->getScanlines(bm.getAddr(0, y), 1, 0);
            if (!isIncomplete) {
                REPORTER_ASSERT(r, 1 == lines);
            }
        }
        // verify that scanline decoding gives the same result.
        if (SkCodec::kTopDown_SkScanlineOrder == codec->getScanlineOrder()) {
            compare_to_good_digest(r, codecDigest, bm);
        }

        // Cannot continue to decode scanlines beyond the end
        REPORTER_ASSERT(r, codec->getScanlines(bm.getAddr(0, 0), 1, 0)
                == 0);

        // Interrupting a scanline decode with a full decode starts from
        // scratch
        REPORTER_ASSERT(r, codec->startScanlineDecode(info) == SkCodec::kSuccess);
        const int lines = codec->getScanlines(bm.getAddr(0, 0), 1, 0);
        if (!isIncomplete) {
            REPORTER_ASSERT(r, lines == 1);
        }
        REPORTER_ASSERT(r, codec->getPixels(bm.info(), bm.getPixels(), bm.rowBytes())
                == expectedResult);
        REPORTER_ASSERT(r, codec->getScanlines(bm.getAddr(0, 0), 1, 0)
                == 0);
        REPORTER_ASSERT(r, codec->skipScanlines(1)
                == 0);

        // Test partial scanline decodes
        if (supports_scaled_codec(path) && info.width() >= 3) {
            SkCodec::Options options;
            int width = info.width();
            int height = info.height();
            SkIRect subset = SkIRect::MakeXYWH(2 * (width / 3), 0, width / 3, height);
            options.fSubset = &subset;

            const SkCodec::Result partialStartResult = codec->startScanlineDecode(info, &options,
                    nullptr, nullptr);
            REPORTER_ASSERT(r, partialStartResult == SkCodec::kSuccess);

            for (int y = 0; y < height; y++) {
                const int lines = codec->getScanlines(bm.getAddr(0, y), 1, 0);
                if (!isIncomplete) {
                    REPORTER_ASSERT(r, 1 == lines);
                }
            }
        }
    } else {
        REPORTER_ASSERT(r, startResult == SkCodec::kUnimplemented);
    }

    // The rest of this function tests decoding subsets, and will decode an arbitrary number of
    // random subsets.
    // Do not attempt to decode subsets of an image of only once pixel, since there is no
    // meaningful subset.
    if (size.width() * size.height() == 1) {
        return;
    }

    SkRandom rand;
    SkIRect subset;
    SkCodec::Options opts;
    opts.fSubset = &subset;
    for (int i = 0; i < 5; i++) {
        subset = generate_random_subset(&rand, size.width(), size.height());
        SkASSERT(!subset.isEmpty());
        const bool supported = codec->getValidSubset(&subset);
        REPORTER_ASSERT(r, supported == supportsSubsetDecoding);

        SkImageInfo subsetInfo = info.makeWH(subset.width(), subset.height());
        SkBitmap bm;
        bm.allocPixels(subsetInfo);
        const SkCodec::Result result = codec->getPixels(bm.info(), bm.getPixels(), bm.rowBytes(),
                                                        &opts, nullptr, nullptr);

        if (supportsSubsetDecoding) {
            REPORTER_ASSERT(r, result == expectedResult);
            // Webp is the only codec that supports subsets, and it will have modified the subset
            // to have even left/top.
            REPORTER_ASSERT(r, SkIsAlign2(subset.fLeft) && SkIsAlign2(subset.fTop));
        } else {
            // No subsets will work.
            REPORTER_ASSERT(r, result == SkCodec::kUnimplemented);
        }
    }

    // SkScaledCodec tests
    if ((supportsScanlineDecoding || supportsSubsetDecoding) && supports_scaled_codec(path)) {

        SkAutoTDelete<SkStream> stream(resource(path));
        if (!stream) {
            SkDebugf("Missing resource '%s'\n", path);
            return;
        }

        SkAutoTDelete<SkAndroidCodec> androidCodec(nullptr);
        if (isIncomplete) {
            size_t size = stream->getLength();
            SkAutoTUnref<SkData> data((SkData::NewFromStream(stream, 2 * size / 3)));
            androidCodec.reset(SkAndroidCodec::NewFromData(data));
        } else {
            androidCodec.reset(SkAndroidCodec::NewFromStream(stream.detach()));
        }
        if (!androidCodec) {
            ERRORF(r, "Unable to decode '%s'", path);
            return;
        }

        SkBitmap bm;
        SkMD5::Digest scaledCodecDigest;
        test_codec(r, androidCodec.get(), bm, info, size, expectedResult, &scaledCodecDigest,
                   &codecDigest);
    }

    // Test SkCodecImageGenerator
    if (!isIncomplete) {
        SkAutoTDelete<SkStream> stream(resource(path));
        SkAutoTUnref<SkData> fullData(SkData::NewFromStream(stream, stream->getLength()));
        SkAutoTDelete<SkImageGenerator> gen(SkCodecImageGenerator::NewFromEncodedCodec(fullData));
        SkBitmap bm;
        bm.allocPixels(info);
        SkAutoLockPixels autoLockPixels(bm);
        REPORTER_ASSERT(r, gen->getPixels(info, bm.getPixels(), bm.rowBytes()));
        compare_to_good_digest(r, codecDigest, bm);
    }

    // If we've just tested incomplete decodes, let's run the same test again on full decodes.
    if (isIncomplete) {
        check(r, path, size, supportsScanlineDecoding, supportsSubsetDecoding, false);
    }
}
Example #4
0
static void check(skiatest::Reporter* r,
                  const char path[],
                  SkISize size,
                  bool supportsScanlineDecoding,
                  bool supportsSubsetDecoding,
                  bool supports565 = true) {
    SkAutoTDelete<SkStream> stream(resource(path));
    if (!stream) {
        SkDebugf("Missing resource '%s'\n", path);
        return;
    }
    SkAutoTDelete<SkCodec> codec(SkCodec::NewFromStream(stream.detach()));
    if (!codec) {
        ERRORF(r, "Unable to decode '%s'", path);
        return;
    }

    // This test is used primarily to verify rewinding works properly.  Using kN32 allows
    // us to test this without the added overhead of creating different bitmaps depending
    // on the color type (ex: building a color table for kIndex8).  DM is where we test
    // decodes to all possible destination color types.
    SkImageInfo info = codec->getInfo().makeColorType(kN32_SkColorType);
    REPORTER_ASSERT(r, info.dimensions() == size);

    {
        // Test decoding to 565
        SkImageInfo info565 = info.makeColorType(kRGB_565_SkColorType);
        SkCodec::Result expected = (supports565 && info.alphaType() == kOpaque_SkAlphaType) ?
                SkCodec::kSuccess : SkCodec::kInvalidConversion;
        test_info(r, codec, info565, expected, NULL);
    }

    SkBitmap bm;
    bm.allocPixels(info);
    SkAutoLockPixels autoLockPixels(bm);
    SkCodec::Result result =
        codec->getPixels(info, bm.getPixels(), bm.rowBytes(), NULL, NULL, NULL);
    REPORTER_ASSERT(r, result == SkCodec::kSuccess);

    SkMD5::Digest digest;
    md5(bm, &digest);

    // verify that re-decoding gives the same result.
    test_info(r, codec, info, SkCodec::kSuccess, &digest);

    {
        // Check alpha type conversions
        if (info.alphaType() == kOpaque_SkAlphaType) {
            test_info(r, codec, info.makeAlphaType(kUnpremul_SkAlphaType),
                      SkCodec::kInvalidConversion, NULL);
            test_info(r, codec, info.makeAlphaType(kPremul_SkAlphaType),
                      SkCodec::kInvalidConversion, NULL);
        } else {
            // Decoding to opaque should fail
            test_info(r, codec, info.makeAlphaType(kOpaque_SkAlphaType),
                      SkCodec::kInvalidConversion, NULL);
            SkAlphaType otherAt = info.alphaType();
            if (kPremul_SkAlphaType == otherAt) {
                otherAt = kUnpremul_SkAlphaType;
            } else {
                otherAt = kPremul_SkAlphaType;
            }
            // The other non-opaque alpha type should always succeed, but not match.
            test_info(r, codec, info.makeAlphaType(otherAt), SkCodec::kSuccess, NULL);
        }
    }

    // Scanline decoding follows.

    stream.reset(resource(path));
    SkAutoTDelete<SkScanlineDecoder> scanlineDecoder(
            SkScanlineDecoder::NewFromStream(stream.detach()));
    if (supportsScanlineDecoding) {
        bm.eraseColor(SK_ColorYELLOW);
        REPORTER_ASSERT(r, scanlineDecoder);

        REPORTER_ASSERT(r, scanlineDecoder->start(info) == SkCodec::kSuccess);

        for (int y = 0; y < info.height(); y++) {
            result = scanlineDecoder->getScanlines(bm.getAddr(0, y), 1, 0);
            REPORTER_ASSERT(r, result == SkCodec::kSuccess);
        }
        // verify that scanline decoding gives the same result.
        compare_to_good_digest(r, digest, bm);
    } else {
        REPORTER_ASSERT(r, !scanlineDecoder);
    }

    // The rest of this function tests decoding subsets, and will decode an arbitrary number of
    // random subsets.
    // Do not attempt to decode subsets of an image of only once pixel, since there is no
    // meaningful subset.
    if (size.width() * size.height() == 1) {
        return;
    }

    SkRandom rand;
    SkIRect subset;
    SkCodec::Options opts;
    opts.fSubset = &subset;
    for (int i = 0; i < 5; i++) {
        subset = generate_random_subset(&rand, size.width(), size.height());
        SkASSERT(!subset.isEmpty());
        const bool supported = codec->getValidSubset(&subset);
        REPORTER_ASSERT(r, supported == supportsSubsetDecoding);

        SkImageInfo subsetInfo = info.makeWH(subset.width(), subset.height());
        SkBitmap bm;
        bm.allocPixels(subsetInfo);
        const SkCodec::Result result = codec->getPixels(bm.info(), bm.getPixels(), bm.rowBytes(),
                                                        &opts, NULL, NULL);

        if (supportsSubsetDecoding) {
            REPORTER_ASSERT(r, result == SkCodec::kSuccess);
            // Webp is the only codec that supports subsets, and it will have modified the subset
            // to have even left/top.
            REPORTER_ASSERT(r, SkIsAlign2(subset.fLeft) && SkIsAlign2(subset.fTop));
        } else {
            // No subsets will work.
            REPORTER_ASSERT(r, result == SkCodec::kUnimplemented);
        }
    }
}