Tile Compression

cc/resources/texture_compress/texture_compress_perftest.cc

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/logging.h"
+#if defined(OS_ANDROID) && defined(ARCH_CPU_ARMEL)
+#include <cpu-features.h>
+#include "cc/resources/texture_compress/arm/atc_dxt_neon.h"
+#include "cc/resources/texture_compress/arm/etc1_neon.h"
+#endif
+#include "cc/debug/lap_timer.h"
+#include "cc/resources/texture_compress/atc_dxt.h"
+#include "cc/resources/texture_compress/etc1.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/perf/perf_test.h"
+
+namespace cc {
+namespace {
+
+static const int kTimeLimitMillis = 2000;
+static const int kWarmupRuns = 5;
+static const int kTimeCheckInterval = 10;
+
+class TextureCompressionPerfTest : public testing::Test {
+ public:
+  TextureCompressionPerfTest()
+      : timer_(kWarmupRuns,
+               base::TimeDelta::FromMilliseconds(kTimeLimitMillis),
+               kTimeCheckInterval) {}
+
+  void SetUp() override { texture_compress::Init_ATC_DXT(); }
+
+ protected:
+  LapTimer timer_;
+};
+
+TEST_F(TextureCompressionPerfTest, Compress256x256Image) {
+  const int kImageWidth = 256;
+  const int kImageHeight = 256;
+  const int kImageSizeInBytes = kImageWidth * kImageHeight * 4;
+  uint8_t src[kImageSizeInBytes];
+  uint8_t dst[kImageSizeInBytes / 4];
+
+  for (int i = 0; i < kImageSizeInBytes; ++i)
+    src[i] = i % 256;
+
+  timer_.Reset();
+  do {
+    texture_compress::CompressDXT1_Generic(src, dst, kImageWidth, kImageHeight);
+    timer_.NextLap();
+  } while (!timer_.HasTimeLimitExpired());
+
+  perf_test::PrintResult("compress_256x256_image", "", "DXT1 Generic",
+                         timer_.MsPerLap(), "us", true);
+
+  timer_.Reset();
+  do {
+    texture_compress::CompressDXT5_Generic(src, dst, kImageWidth, kImageHeight);
+    timer_.NextLap();
+  } while (!timer_.HasTimeLimitExpired());
+
+  perf_test::PrintResult("compress_256x256_image", "", "DXT5 Generic",
+                         timer_.MsPerLap(), "us", true);
+
+  timer_.Reset();
+  do {
+    etc1::CompressTexture(src, dst, kImageWidth, kImageHeight);
+    timer_.NextLap();
+  } while (!timer_.HasTimeLimitExpired());
+
+  perf_test::PrintResult("compress_256x256_image", "", "ETC1 Generic",
+                         timer_.MsPerLap(), "us", true);
+
+#if defined(OS_ANDROID) && defined(ARCH_CPU_ARMEL)
+  if ((android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_NEON) != 0) {
+    timer_.Reset();
+    do {
+      texture_compress::CompressDXT1_NEON(src, dst, kImageWidth, kImageHeight);
+      timer_.NextLap();
+    } while (!timer_.HasTimeLimitExpired());
+
+    perf_test::PrintResult("compress_256x256_image", "", "DXT1 NEON",
+                           timer_.MsPerLap(), "us", true);
+
+    timer_.Reset();
+    do {
+      texture_compress::CompressDXT5_NEON(src, dst, kImageWidth, kImageHeight);
+      timer_.NextLap();
+    } while (!timer_.HasTimeLimitExpired());
+
+    perf_test::PrintResult("compress_256x256_image", "", "DXT5 NEON",
+                           timer_.MsPerLap(), "us", true);
+
+    timer_.Reset();
+    do {
+      etc1_neon::CompressTexture(src, dst, kImageWidth, kImageHeight);
+      timer_.NextLap();
+    } while (!timer_.HasTimeLimitExpired());
+
+    perf_test::PrintResult("compress_256x256_image", "", "ETC1 NEON",
+                           timer_.MsPerLap(), "us", true);
+  }
+#endif
+}
+
+TEST_F(TextureCompressionPerfTest, Compress256x256SolidImage) {
+  const int kImageWidth = 256;
+  const int kImageHeight = 256;
+  const int kImageSizeInBytes = kImageWidth * kImageHeight * 4;
+  uint8_t src[kImageSizeInBytes];
+  uint8_t dst[kImageSizeInBytes / 4];
+
+  memset(src, 0, sizeof(src));
+
+  timer_.Reset();
+  do {
+    texture_compress::CompressDXT1_Generic(src, dst, kImageWidth, kImageHeight);
+    timer_.NextLap();
+  } while (!timer_.HasTimeLimitExpired());
+
+  perf_test::PrintResult("compress_256x256_solid_image", "", "DXT1",
+                         timer_.MsPerLap(), "us", true);
+
+  timer_.Reset();
+  do {
+    texture_compress::CompressDXT5_Generic(src, dst, kImageWidth, kImageHeight);
+    timer_.NextLap();
+  } while (!timer_.HasTimeLimitExpired());
+
+  perf_test::PrintResult("compress_256x256_solid_image", "", "DXT5",
+                         timer_.MsPerLap(), "us", true);
+
+  timer_.Reset();
+  do {
+    etc1::CompressTexture(src, dst, kImageWidth, kImageHeight);
+    timer_.NextLap();
+  } while (!timer_.HasTimeLimitExpired());
+
+  perf_test::PrintResult("compress_256x256_solid_image", "", "ETC1 Generic",
+                         timer_.MsPerLap(), "us", true);
+
+#if defined(OS_ANDROID) && defined(ARCH_CPU_ARMEL)
+  if ((android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_NEON) != 0) {
+    timer_.Reset();
+    do {
+      texture_compress::CompressDXT1_NEON(src, dst, kImageWidth, kImageHeight);
+      timer_.NextLap();
+    } while (!timer_.HasTimeLimitExpired());
+
+    perf_test::PrintResult("compress_256x256_solid_image", "", "DXT1 NEON",
+                           timer_.MsPerLap(), "us", true);
+
+    timer_.Reset();
+    do {
+      texture_compress::CompressDXT5_NEON(src, dst, kImageWidth, kImageHeight);
+      timer_.NextLap();
+    } while (!timer_.HasTimeLimitExpired());
+
+    perf_test::PrintResult("compress_256x256_solid_image", "", "DXT5 NEON",
+                           timer_.MsPerLap(), "us", true);
+
+    timer_.Reset();
+    do {
+      etc1_neon::CompressTexture(src, dst, kImageWidth, kImageHeight);
+      timer_.NextLap();
+    } while (!timer_.HasTimeLimitExpired());
+
+    perf_test::PrintResult("compress_256x256_solid_image", "", "ETC1 NEON",
+                           timer_.MsPerLap(), "us", true);
+  }
+#endif
+}
+
+}  // namespace
+}  // namespace cc