Fix SamplerFilterAnisotropicTests mipmap

Fix a bug about mipmap level in SamplerFilterAnisotropicTests.
Sizes of the 3 miplevels should be 4,2,1.
The old code allocates 8,4,2 (which don't have a 1x1 level)
Expected rendered pixel values have to change.
The render result now fits the webgl demo at https://jsfiddle.net/t8k7c95o/5/
(Thanks Kai for the enlarged pixelated canvas)

ComputeBoids.cpp and DawnTest.cpp change is due to git cl format

Bug: dawn:568
Change-Id: I9069732208a16be285be13b8cd1ab19b211995a6
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/37380
Commit-Queue: Shrek Shao <shrekshao@google.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
diff --git a/examples/ComputeBoids.cpp b/examples/ComputeBoids.cpp
index 4acc6aa..7bf1062 100644
--- a/examples/ComputeBoids.cpp
+++ b/examples/ComputeBoids.cpp
@@ -95,8 +95,7 @@
 }
 
 void initRender() {
-    wgpu::ShaderModule vsModule =
-        utils::CreateShaderModuleFromWGSL(device, R"(
+    wgpu::ShaderModule vsModule = utils::CreateShaderModuleFromWGSL(device, R"(
         [[location(0)]] var<in> a_particlePos : vec2<f32>;
         [[location(1)]] var<in> a_particleVel : vec2<f32>;
         [[location(2)]] var<in> a_pos : vec2<f32>;
@@ -113,8 +112,7 @@
         }
     )");
 
-    wgpu::ShaderModule fsModule =
-        utils::CreateShaderModuleFromWGSL(device, R"(
+    wgpu::ShaderModule fsModule = utils::CreateShaderModuleFromWGSL(device, R"(
         [[location(0)]] var<out> FragColor : vec4<f32>;
         [[stage(fragment)]]
         fn main() -> void {
diff --git a/src/tests/DawnTest.cpp b/src/tests/DawnTest.cpp
index 446ebd0..a44581c 100644
--- a/src/tests/DawnTest.cpp
+++ b/src/tests/DawnTest.cpp
@@ -901,7 +901,6 @@
     // upgrade. Violently suppress this whole configuration until we figure out what to do.
     // See https://crbug.com/dawn/598
     DAWN_SKIP_TEST_IF(IsBackendValidationEnabled() && IsIntel() && IsD3D12());
-
 }
 
 void DawnTestBase::TearDown() {
diff --git a/src/tests/end2end/SamplerFilterAnisotropicTests.cpp b/src/tests/end2end/SamplerFilterAnisotropicTests.cpp
index cd96b97..4ffbe55 100644
--- a/src/tests/end2end/SamplerFilterAnisotropicTests.cpp
+++ b/src/tests/end2end/SamplerFilterAnisotropicTests.cpp
@@ -93,8 +93,8 @@
     void InitTexture() {
         const uint32_t mipLevelCount = colors.size();
 
-        const uint32_t textureWidthLevel0 = 1 << mipLevelCount;
-        const uint32_t textureHeightLevel0 = 1 << mipLevelCount;
+        const uint32_t textureWidthLevel0 = 1 << (mipLevelCount - 1);
+        const uint32_t textureHeightLevel0 = 1 << (mipLevelCount - 1);
 
         wgpu::TextureDescriptor descriptor;
         descriptor.dimension = wgpu::TextureDimension::e2D;
@@ -197,18 +197,18 @@
         queue.Submit(1, &commands);
 
         // https://jsfiddle.net/t8k7c95o/5/
-        // (x, y) -> (8, [0,15)) full readpixels result on Mac metal backend Intel GPU
+        // (x, y) -> (8, [0,15)) full readpixels result on Win10 Nvidia D3D12 GPU
         // maxAnisotropy: 1
         //  0 - 00 00 00
         //  1 - 00 00 ff
         //  2 - 00 00 ff
         //  3 - 00 00 ff
-        //  4 - 00 00 ff
-        //  5 - 00 00 ff
-        //  6 - 00 ef 10
-        //  7 - 00 ef 10
-        //  8 - a7 58 00
-        //  9 - a7 58 00
+        //  4 - 00 f9 06
+        //  5 - 00 f9 06
+        //  6 - f2 0d 00
+        //  7 - f2 0d 00
+        //  8 - ff 00 00
+        //  9 - ff 00 00
         // 10 - ff 00 00
         // 11 - ff 00 00
         // 12 - ff 00 00
@@ -219,12 +219,12 @@
         // maxAnisotropy: 2
         //  0 - 00 00 00
         //  1 - 00 00 ff
-        //  2 - 00 00 ff
-        //  3 - 00 00 ff
-        //  4 - 00 f7 08
-        //  5 - 00 f7 08
-        //  6 - ed 12 00
-        //  7 - ed 12 10
+        //  2 - 00 7e 81
+        //  3 - 00 7e 81
+        //  4 - ff 00 00
+        //  5 - ff 00 00
+        //  6 - ff 00 00
+        //  7 - ff 00 00
         //  8 - ff 00 00
         //  9 - ff 00 00
         // 10 - ff 00 00
@@ -237,10 +237,10 @@
         // maxAnisotropy: 16
         //  0 - 00 00 00
         //  1 - 00 00 ff
-        //  2 - 00 ad 52
-        //  3 - 00 ad 52
-        //  4 - 81 7e 00
-        //  5 - 81 7e 00
+        //  2 - dd 22 00
+        //  3 - dd 22 00
+        //  4 - ff 00 00
+        //  5 - ff 00 00
         //  6 - ff 00 00
         //  7 - ff 00 00
         //  8 - ff 00 00
@@ -253,14 +253,14 @@
         // 15 - ff 00 00
 
         if (maxAnisotropy >= 16) {
-            EXPECT_PIXEL_RGBA8_BETWEEN(colors[0], colors[1], mRenderPass.color, 8, 4);
-            EXPECT_PIXEL_RGBA8_EQ(colors[0], mRenderPass.color, 8, 7);
+            EXPECT_PIXEL_RGBA8_BETWEEN(colors[0], colors[1], mRenderPass.color, 8, 2);
+            EXPECT_PIXEL_RGBA8_EQ(colors[0], mRenderPass.color, 8, 6);
         } else if (maxAnisotropy == 2) {
-            EXPECT_PIXEL_RGBA8_BETWEEN(colors[1], colors[2], mRenderPass.color, 8, 4);
-            EXPECT_PIXEL_RGBA8_BETWEEN(colors[0], colors[1], mRenderPass.color, 8, 7);
+            EXPECT_PIXEL_RGBA8_BETWEEN(colors[1], colors[2], mRenderPass.color, 8, 2);
+            EXPECT_PIXEL_RGBA8_EQ(colors[0], mRenderPass.color, 8, 6);
         } else if (maxAnisotropy <= 1) {
-            EXPECT_PIXEL_RGBA8_EQ(colors[2], mRenderPass.color, 8, 4);
-            EXPECT_PIXEL_RGBA8_BETWEEN(colors[1], colors[2], mRenderPass.color, 8, 7);
+            EXPECT_PIXEL_RGBA8_EQ(colors[2], mRenderPass.color, 8, 2);
+            EXPECT_PIXEL_RGBA8_BETWEEN(colors[0], colors[1], mRenderPass.color, 8, 6);
         }
     }