Fixes ImageBlitFromImage tests scaling blit verification code

Fixes #319

diff --git a/external/vulkancts/modules/vulkan/memory/vktMemoryPipelineBarrierTests.cpp b/external/vulkancts/modules/vulkan/memory/vktMemoryPipelineBarrierTests.cpp
old mode 100644 (file)
new mode 100755 (executable)
index ad3659a..c9d8c24
--- a/external/vulkancts/modules/vulkan/memory/vktMemoryPipelineBarrierTests.cpp
+++ b/external/vulkancts/modules/vulkan/memory/vktMemoryPipelineBarrierTests.cpp
@@ -3835,7 +3835,9 @@ void ImageBlitFromImage::verify (VerifyContext& context, size_t)
                }
                else if (m_scale == BLIT_SCALE_20)
                {
-                       tcu::TextureLevel source (TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT8), m_srcImageWidth, m_srcImageHeight);
+                       tcu::TextureLevel       source  (TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT8), m_srcImageWidth, m_srcImageHeight);
+                       const float                     xscale  = ((float)m_srcImageWidth)  / (float)m_imageWidth;
+                       const float                     yscale  = ((float)m_srcImageHeight) / (float)m_imageHeight;
 
                        for (deInt32 y = 0; y < m_srcImageHeight; y++)
                        for (deInt32 x = 0; x < m_srcImageWidth; x++)
@@ -3850,7 +3852,7 @@ 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(x / 2, y / 2), x, y);
+                               refAccess.setPixel(source.getAccess().getPixelUint(int(x * xscale), int(y * yscale)), x, y);
                }
                else
                        DE_FATAL("Unsupported scale");