Fix failures that alpha channel is not correct

Previously, the alpha channel was not set which resulted the intended swapchain buffer format is B8G8R8X8_UNORM. It means that the format supports 8 bits for each color channel and 8 bits unused. However, in our test case, we expect to compare the alpha channel. So we should set alpha channel explicitly. Bug: angleproject:4575 Bug: angleproject:4576 Change-Id: Ic26ee81a6a34dc44d0ae32e3dc463e9afa16e05c Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2237189 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>

Fix failures that alpha channel is not correct
5abc0c56 · Qin Jiajia · Commit Bot · 74b33834 · 5abc0c56
Commit 5abc0c56 authored Jun 09, 2020 by Qin Jiajia Committed by Commit Bot Jun 09, 2020
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Showing with 2 additions and 5 deletions

DrawElementsTest.cpp src/tests/gl_tests/DrawElementsTest.cpp +2 -5

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--- a/src/tests/gl_tests/DrawElementsTest.cpp
+++ b/src/tests/gl_tests/DrawElementsTest.cpp
@@ -24,6 +24,8 @@ class DrawElementsTest : public ANGLETest
        setWindowHeight(64);
        setConfigRedBits(8);
        setConfigGreenBits(8);
+        setConfigBlueBits(8);
+        setConfigAlphaBits(8);
    }

    ~DrawElementsTest()
@@ -111,8 +113,6 @@ TEST_P(DrawElementsTest, ClientSideNullptrArrayZeroCount)
 // deleting the applied index buffer.
 TEST_P(DrawElementsTest, DeletingAfterStreamingIndexes)
 {
-    // http://anglebug.com/4575 - Test skipped on D3D11 (alpha channel not correct)
-    ANGLE_SKIP_TEST_IF(IsWindows() && IsD3D11());
    // Init program
    constexpr char kVS[] =
        "attribute vec2 position;\n"
@@ -239,9 +239,6 @@ TEST_P(DrawElementsTest, DeletingAfterStreamingIndexes)
 // Test drawing to part of the indices in an index buffer, and then all of them.
 TEST_P(DrawElementsTest, PartOfIndexBufferThenAll)
 {
-    // http://anglebug.com/4575 - Test skipped on D3D11 (alpha channel not correct)
-    // http://anglebug.com/4576 - Test skipped on SwiftShader (alpha channel not drawn)
-    ANGLE_SKIP_TEST_IF(IsWindows() && (IsD3D11() || isSwiftshader()));
    // Init program
    constexpr char kVS[] =
        "attribute vec2 position;\n"