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Diffstat (limited to 'gfx/blit_unittest.cc')
-rw-r--r-- | gfx/blit_unittest.cc | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/gfx/blit_unittest.cc b/gfx/blit_unittest.cc deleted file mode 100644 index cea3296..0000000 --- a/gfx/blit_unittest.cc +++ /dev/null @@ -1,135 +0,0 @@ -// Copyright (c) 2010 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/basictypes.h" -#include "gfx/blit.h" -#include "gfx/point.h" -#include "gfx/rect.h" -#include "skia/ext/platform_canvas.h" -#include "testing/gtest/include/gtest/gtest.h" - -namespace { - -// Fills the given canvas with the values by duplicating the values into each -// color channel for the corresponding pixel. -// -// Example values = {{0x0, 0x01}, {0x12, 0xFF}} would give a canvas with: -// 0x00000000 0x01010101 -// 0x12121212 0xFFFFFFFF -template<int w, int h> -void SetToCanvas(skia::PlatformCanvas* canvas, uint8 values[h][w]) { - SkBitmap& bitmap = const_cast<SkBitmap&>( - canvas->getTopPlatformDevice().accessBitmap(true)); - SkAutoLockPixels lock(bitmap); - ASSERT_EQ(w, bitmap.width()); - ASSERT_EQ(h, bitmap.height()); - - for (int y = 0; y < h; y++) { - for (int x = 0; x < w; x++) { - uint8 value = values[y][x]; - *bitmap.getAddr32(x, y) = - (value << 24) | (value << 16) | (value << 8) | value; - } - } -} - -// Checks each pixel in the given canvas and see if it is made up of the given -// values, where each value has been duplicated into each channel of the given -// bitmap (see SetToCanvas above). -template<int w, int h> -void VerifyCanvasValues(skia::PlatformCanvas* canvas, uint8 values[h][w]) { - SkBitmap& bitmap = const_cast<SkBitmap&>( - canvas->getTopPlatformDevice().accessBitmap(true)); - SkAutoLockPixels lock(bitmap); - ASSERT_EQ(w, bitmap.width()); - ASSERT_EQ(h, bitmap.height()); - - for (int y = 0; y < h; y++) { - for (int x = 0; x < w; x++) { - uint8 value = values[y][x]; - uint32 expected = - (value << 24) | (value << 16) | (value << 8) | value; - ASSERT_EQ(expected, *bitmap.getAddr32(x, y)); - } - } -} - -} // namespace - -TEST(Blit, ScrollCanvas) { - static const int kCanvasWidth = 5; - static const int kCanvasHeight = 5; - skia::PlatformCanvas canvas(kCanvasWidth, kCanvasHeight, true); - uint8 initial_values[kCanvasHeight][kCanvasWidth] = { - { 0x00, 0x01, 0x02, 0x03, 0x04 }, - { 0x10, 0x11, 0x12, 0x13, 0x14 }, - { 0x20, 0x21, 0x22, 0x23, 0x24 }, - { 0x30, 0x31, 0x32, 0x33, 0x34 }, - { 0x40, 0x41, 0x42, 0x43, 0x44 }}; - SetToCanvas<5, 5>(&canvas, initial_values); - - // Sanity check on input. - VerifyCanvasValues<5, 5>(&canvas, initial_values); - - // Scroll none and make sure it's a NOP. - gfx::ScrollCanvas(&canvas, - gfx::Rect(0, 0, kCanvasWidth, kCanvasHeight), - gfx::Point(0, 0)); - VerifyCanvasValues<5, 5>(&canvas, initial_values); - - // Scroll the center 3 pixels up one. - gfx::Rect center_three(1, 1, 3, 3); - gfx::ScrollCanvas(&canvas, center_three, gfx::Point(0, -1)); - uint8 scroll_up_expected[kCanvasHeight][kCanvasWidth] = { - { 0x00, 0x01, 0x02, 0x03, 0x04 }, - { 0x10, 0x21, 0x22, 0x23, 0x14 }, - { 0x20, 0x31, 0x32, 0x33, 0x24 }, - { 0x30, 0x31, 0x32, 0x33, 0x34 }, - { 0x40, 0x41, 0x42, 0x43, 0x44 }}; - VerifyCanvasValues<5, 5>(&canvas, scroll_up_expected); - - // Reset and scroll the center 3 pixels down one. - SetToCanvas<5, 5>(&canvas, initial_values); - gfx::ScrollCanvas(&canvas, center_three, gfx::Point(0, 1)); - uint8 scroll_down_expected[kCanvasHeight][kCanvasWidth] = { - { 0x00, 0x01, 0x02, 0x03, 0x04 }, - { 0x10, 0x11, 0x12, 0x13, 0x14 }, - { 0x20, 0x11, 0x12, 0x13, 0x24 }, - { 0x30, 0x21, 0x22, 0x23, 0x34 }, - { 0x40, 0x41, 0x42, 0x43, 0x44 }}; - VerifyCanvasValues<5, 5>(&canvas, scroll_down_expected); - - // Reset and scroll the center 3 pixels right one. - SetToCanvas<5, 5>(&canvas, initial_values); - gfx::ScrollCanvas(&canvas, center_three, gfx::Point(1, 0)); - uint8 scroll_right_expected[kCanvasHeight][kCanvasWidth] = { - { 0x00, 0x01, 0x02, 0x03, 0x04 }, - { 0x10, 0x11, 0x11, 0x12, 0x14 }, - { 0x20, 0x21, 0x21, 0x22, 0x24 }, - { 0x30, 0x31, 0x31, 0x32, 0x34 }, - { 0x40, 0x41, 0x42, 0x43, 0x44 }}; - VerifyCanvasValues<5, 5>(&canvas, scroll_right_expected); - - // Reset and scroll the center 3 pixels left one. - SetToCanvas<5, 5>(&canvas, initial_values); - gfx::ScrollCanvas(&canvas, center_three, gfx::Point(-1, 0)); - uint8 scroll_left_expected[kCanvasHeight][kCanvasWidth] = { - { 0x00, 0x01, 0x02, 0x03, 0x04 }, - { 0x10, 0x12, 0x13, 0x13, 0x14 }, - { 0x20, 0x22, 0x23, 0x23, 0x24 }, - { 0x30, 0x32, 0x33, 0x33, 0x34 }, - { 0x40, 0x41, 0x42, 0x43, 0x44 }}; - VerifyCanvasValues<5, 5>(&canvas, scroll_left_expected); - - // Diagonal scroll. - SetToCanvas<5, 5>(&canvas, initial_values); - gfx::ScrollCanvas(&canvas, center_three, gfx::Point(2, 2)); - uint8 scroll_diagonal_expected[kCanvasHeight][kCanvasWidth] = { - { 0x00, 0x01, 0x02, 0x03, 0x04 }, - { 0x10, 0x11, 0x12, 0x13, 0x14 }, - { 0x20, 0x21, 0x22, 0x23, 0x24 }, - { 0x30, 0x31, 0x32, 0x11, 0x34 }, - { 0x40, 0x41, 0x42, 0x43, 0x44 }}; - VerifyCanvasValues<5, 5>(&canvas, scroll_diagonal_expected); -} |