Draw call tests for Vulkan (#2073)

* Added instancing support to Vulkan, drawInstanced() test image is upside-down

* Fixed inverted drawInstanced() test output by changing Vulkan viewport convention

* Replaced vkCmdDraw with vkCmdDrawIndexed in all non-indirect indexed draws, drawIndexedIndirect test now working for Vulkan

* Moved index and vertex buffer binding into setIndexBuffer and setVertexBuffers; Defaulted countBuffer to nullptr and countOffset to 0 and added a check for non-null countBuffer to drawIndirect and drawIndexedIndirect in Vulkan; All Vulkan draw tests working (but D3D12 tests broken)

* Added support for drawInstanced and drawIndexedInstanced to D3D11 and added tests for both, however D3D11 tests are currently disabled due to readTextureResource assuming a fixed pixel size (among other possible problems); Fixed issues causing D3D12 tests to fail after major back-end fixes to get Vulkan up and running

* Removed testing function for dumping images and some other commented out code

* Removed some commented out code

* Fix initializer list causing builds to fail (attempt 1)

* Removed initializer list for VertexStreamDesc in createInputLayout() and fill in struct fields normally (build fix attempt 2)

* Removed default values from VertexStreamDesc and changed all initializer lists to reflect this change

* Moved applyBinding before setVertexBuffer in RenderTestApp::renderFrame() to ensure the pipeline has already been bound before vertex buffers are

* Changed D3D11's readTextureResource to calculate pixel size using format-specific size information; Removed wrapper around D3D11 instanced and indexed instanced draw tests

1 files changed, 2 insertions, 2 deletions

diff --git a/examples/ray-tracing/main.cpp b/examples/ray-tracing/main.cpp
index 1285be866..e26393cbc 100644
--- a/examples/ray-tracing/main.cpp
+++ b/examples/ray-tracing/main.cpp
@@ -496,7 +496,7 @@ Slang::Result initialize()
     InputElementDesc inputElements[] = {
         {"POSITION", 0, Format::R32G32_FLOAT, offsetof(FullScreenTriangle::Vertex, position)},
     };
-    auto inputLayout = gDevice->createInputLayout(&inputElements[0], SLANG_COUNT_OF(inputElements));
+    auto inputLayout = gDevice->createInputLayout(sizeof(FullScreenTriangle::Vertex), &inputElements[0], SLANG_COUNT_OF(inputElements));
     if (!inputLayout)
         return SLANG_FAIL;
 
@@ -622,7 +622,7 @@ virtual void renderFrame(int frameBufferIndex) override
         auto cursor = ShaderCursor(rootObject->getEntryPoint(1));
         cursor["t"].setResource(gResultTextureUAV);
         presentEncoder->setVertexBuffer(
-            0, gFullScreenVertexBuffer, sizeof(FullScreenTriangle::Vertex));
+            0, gFullScreenVertexBuffer);
         presentEncoder->setPrimitiveTopology(PrimitiveTopology::TriangleList);
         presentEncoder->draw(3);
         presentEncoder->endEncoding();