license.bot | f003cfe | 2008-08-24 09:55:55 +0900 | [diff] [blame^] | 1 | // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
initial.commit | 3f4a732 | 2008-07-27 06:49:38 +0900 | [diff] [blame] | 4 | |
| 5 | #include <stdlib.h> |
| 6 | #include <time.h> |
| 7 | |
| 8 | #include "base/perftimer.h" |
| 9 | #include "base/gfx/convolver.h" |
| 10 | #include "base/gfx/image_operations.h" |
| 11 | #include "base/gfx/image_resizer.h" |
| 12 | #include "testing/gtest/include/gtest/gtest.h" |
| 13 | |
| 14 | namespace { |
| 15 | |
| 16 | void FillRandomData(char* dest, int byte_count) { |
| 17 | srand(static_cast<unsigned>(time(NULL))); |
| 18 | for (int i = 0; i < byte_count; i++) |
| 19 | dest[i] = rand() * 255 / RAND_MAX; |
| 20 | } |
| 21 | |
| 22 | } // namespace |
| 23 | |
| 24 | // Old code gives [1521, 1519]ms for this, 4000x4000 -> 2100x2100 lanczos8 |
| 25 | |
| 26 | TEST(ImageResizePerf, BigFilter) { |
| 27 | static const int kSrcWidth = 4000; |
| 28 | static const int kSrcHeight = 4000; |
| 29 | static const int kSrcByteSize = kSrcWidth * kSrcHeight * 4; |
| 30 | |
| 31 | SkBitmap src_bmp; |
| 32 | src_bmp.setConfig(SkBitmap::kARGB_8888_Config, kSrcWidth, kSrcHeight); |
| 33 | src_bmp.allocPixels(); |
| 34 | FillRandomData(reinterpret_cast<char*>(src_bmp.getAddr32(0, 0)), |
| 35 | kSrcByteSize); |
| 36 | |
| 37 | // Make the dest size > 1/2 so the 50% optimization doesn't kick in. |
| 38 | static const int kDestWidth = 1400; |
| 39 | static const int kDestHeight = 1400; |
| 40 | |
| 41 | PerfTimeLogger resize_timer("resize"); |
| 42 | gfx::ImageResizer resizer(gfx::ImageResizer::LANCZOS3); |
| 43 | SkBitmap dest = resizer.Resize(src_bmp, kDestWidth, kDestHeight); |
| 44 | } |
| 45 | |
| 46 | // The original image filter we were using took 523ms for this test, while this |
| 47 | // one takes 857ms. |
| 48 | // TODO(brettw) make this at least 64% faster. |
| 49 | TEST(ImageOperationPerf, BigFilter) { |
| 50 | static const int kSrcWidth = 4000; |
| 51 | static const int kSrcHeight = 4000; |
| 52 | static const int kSrcByteSize = kSrcWidth * kSrcHeight * 4; |
| 53 | |
| 54 | SkBitmap src_bmp; |
| 55 | src_bmp.setConfig(SkBitmap::kARGB_8888_Config, kSrcWidth, kSrcHeight); |
| 56 | src_bmp.allocPixels(); |
| 57 | src_bmp.setIsOpaque(true); |
| 58 | FillRandomData(reinterpret_cast<char*>(src_bmp.getAddr32(0, 0)), |
| 59 | kSrcByteSize); |
| 60 | |
| 61 | // Make the dest size > 1/2 so the 50% optimization doesn't kick in. |
| 62 | static const int kDestWidth = 1400; |
| 63 | static const int kDestHeight = 1400; |
| 64 | |
| 65 | PerfTimeLogger resize_timer("resize"); |
| 66 | SkBitmap dest = gfx::ImageOperations::Resize(src_bmp, |
| 67 | gfx::ImageOperations::RESIZE_LANCZOS3, (float)kDestWidth / (float)kSrcWidth, |
| 68 | (float)kDestHeight / (float)kSrcHeight); |
| 69 | } |
license.bot | f003cfe | 2008-08-24 09:55:55 +0900 | [diff] [blame^] | 70 | |