Fix source blit image size

Changed the way source blit image size is calculated,
so that in all circumstances width > 0 and height > 0.

Affects:
dEQP-VK.memory.pipeline_barrier.host_read_transfer_dst.1024

Components: Vulkan

VK-GL-CTS issue: 2816

Change-Id: Id23a8e613b013e9e40b0075822b80c78b9ca418c

diff --git a/external/vulkancts/modules/vulkan/memory/vktMemoryPipelineBarrierTests.cpp b/external/vulkancts/modules/vulkan/memory/vktMemoryPipelineBarrierTests.cpp
index 9951b04..5f70d18 100644 (file)
--- a/external/vulkancts/modules/vulkan/memory/vktMemoryPipelineBarrierTests.cpp
+++ b/external/vulkancts/modules/vulkan/memory/vktMemoryPipelineBarrierTests.cpp
@@ -3648,8 +3648,8 @@ void ImageBlitFromImage::prepare (PrepareContext& context)
        }
        else if (m_scale == BLIT_SCALE_20)
        {
-               m_srcImageWidth                 = m_imageWidth / 2;
-               m_srcImageHeight                = m_imageHeight / 2;
+               m_srcImageWidth                 = m_imageWidth == 1 ? 1 : m_imageWidth / 2;
+               m_srcImageHeight                = m_imageHeight == 1 ? 1 : m_imageHeight / 2;
        }
        else
                DE_FATAL("Unsupported scale");