Fix incorrect scale in pipeline_barrier tests

The ImageBlitFromImage verfication code incorrectly scales the refrence image it creates.
The test should add 0.5 to the x and y coords before scaling them.

Affects:
dEQP-VK.memory.pipeline_barrier.*

Components: Vulkan

VK-GL-CTS issue: 577

Change-Id: I28d0b4deec0f1837c21cdc2dc68a9169ca8ae96b

diff --git a/external/vulkancts/modules/vulkan/memory/vktMemoryPipelineBarrierTests.cpp b/external/vulkancts/modules/vulkan/memory/vktMemoryPipelineBarrierTests.cpp
index 3df4c35..7069ef4 100644 (file)
--- a/external/vulkancts/modules/vulkan/memory/vktMemoryPipelineBarrierTests.cpp
+++ b/external/vulkancts/modules/vulkan/memory/vktMemoryPipelineBarrierTests.cpp
@@ -3879,7 +3879,7 @@ void ImageBlitFromImage::verify (VerifyContext& context, size_t)
 
                        for (deInt32 y = 0; y < m_imageHeight; y++)
                        for (deInt32 x = 0; x < m_imageWidth; x++)
-                               refAccess.setPixel(source.getAccess().getPixelUint(int(float(x) * xscale), int(float(y) * yscale)), x, y);
+                               refAccess.setPixel(source.getAccess().getPixelUint(int((float(x) + 0.5f) * xscale), int((float(y) + 0.5f) * yscale)), x, y);
                }
                else
                        DE_FATAL("Unsupported scale");