Feature/vulkan first render (#545)

* First pass at InputLayout for Vulkan
Add support for RGBA_Float32

* Use VulkanModule and VulkanApi to handle accessing Vulkan types.

* First pass at Vulkan swap chain/Device queue.

* Added VulkanUtil for generic function functions.

* Move more functionality to VulkanApi and VulkanUtil.
Make Buffer able to initialize itself.

* More tidy up around VulkanDeviceQueue

* First pass use of VulkanDeviceQueue in VkRenderer

* First pass use of VulkanSwapChain on VkRenderer

* Added depth formats.
Binding for constant and vertex buffers for Vulkan.

* Setting up VkImageView on backbuffers.

* First pass support for setting up vkRenderPass.

* Fixes to work around Vulkan swap chain/verification issues.

* Added support for Pipeline and a pipeline cache.

* Working without waiting - because use of pipeline cache.

* Added support for VkFramebuffer in Vulkan.

* First pass at creating Vulkan graphics pipeline.

* More efforts to get Vulkan to render.

* Small improvement for checking of Binding flags.

* Removed setConstantBuffers from the Renderer interface - so that all resource binding takes place through the BindingState.
To make this work required a 'hack' in render-test main.cpp - so that the constant buffer binding that is needed in some tests is only added when it doesn't clash.

* RendererID -> unified into RendererType. Added getRendererType to Renderer interface.
Added ProjectionStyle, and function to get from RendererType.
Added getIdentityProjection to RendererUtil - to get projection that is the 'identity' - but hits the same pixels for all projection styles.

* Fix build problem on Win32 on Vulkan where should use VK_NULL_HANDLE.

* Improve naming, comments. Remove dead code.

* Remove unwanted comment.

1 files changed, 58 insertions, 0 deletions

diff --git a/tools/render-test/vk-util.cpp b/tools/render-test/vk-util.cpp
new file mode 100644
index 000000000..022d15a32
--- /dev/null
+++ b/tools/render-test/vk-util.cpp
@@ -0,0 +1,58 @@
+// vk-util.cpp
+#include "vk-util.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+
+namespace renderer_test {
+
+/* static */VkFormat VulkanUtil::getVkFormat(Format format)
+{
+    switch (format)
+    {
+        case Format::RGBA_Float32:      return VK_FORMAT_R32G32B32A32_SFLOAT;
+        case Format::RGB_Float32:       return VK_FORMAT_R32G32B32_SFLOAT;
+        case Format::RG_Float32:        return VK_FORMAT_R32G32_SFLOAT;
+        case Format::R_Float32:         return VK_FORMAT_R32_SFLOAT;
+        case Format::RGBA_Unorm_UInt8:  return VK_FORMAT_R8G8B8A8_UNORM;
+
+        case Format::D_Float32:         return VK_FORMAT_D32_SFLOAT;
+        case Format::D_Unorm24_S8:      return VK_FORMAT_D24_UNORM_S8_UINT;
+
+        default:                        return VK_FORMAT_UNDEFINED;
+    }
+}
+
+/* static */SlangResult VulkanUtil::toSlangResult(VkResult res)
+{
+    return (res == VK_SUCCESS) ? SLANG_OK : SLANG_FAIL;
+}
+
+/* static */Slang::Result VulkanUtil::handleFail(VkResult res)
+{
+    if (res != VK_SUCCESS)
+    {
+        assert(!"Vulkan returned a failure");
+    }
+    return toSlangResult(res);
+}
+
+/* static */void VulkanUtil::checkFail(VkResult res)
+{
+    assert(res != VK_SUCCESS);
+    assert(!"Vulkan check failed");
+
+}
+
+/* static */VkPrimitiveTopology VulkanUtil::getVkPrimitiveTopology(PrimitiveTopology topology)
+{
+    switch (topology)
+    {
+        case PrimitiveTopology::TriangleList:       return VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
+        default: break;
+    }
+    assert(!"Unknown topology");
+    return VK_PRIMITIVE_TOPOLOGY_MAX_ENUM;
+}
+
+} // renderer_test