1.2.0.beta.11.2.0.beta.1

1 files changed, 173 insertions, 0 deletions

diff --git a/demo/d3d12/NvCoDxFormatUtil.cpp b/demo/d3d12/NvCoDxFormatUtil.cpp
new file mode 100644
index 0000000..7facf2e
--- /dev/null
+++ b/demo/d3d12/NvCoDxFormatUtil.cpp
@@ -0,0 +1,173 @@
+/* Copyright (c) 2016, NVIDIA CORPORATION.  All rights reserved.
+* NVIDIA CORPORATION and its licensors retain all intellectual property
+* and proprietary rights in and to this software, related documentation
+* and any modifications thereto.  Any use, reproduction, disclosure or
+* distribution of this software and related documentation without an express
+* license agreement from NVIDIA CORPORATION is strictly prohibited. */
+
+#include "NvCoDxFormatUtil.h"
+
+#include <stdio.h>
+
+namespace nvidia {
+namespace Common {
+
+/* static */DXGI_FORMAT DxFormatUtil::calcResourceFormat(UsageType usage, int usageFlags, DXGI_FORMAT format)
+{
+	(void)usage;
+	if (usageFlags)
+	{
+		switch (format)
+		{
+			case DXGI_FORMAT_R32_FLOAT:
+			case DXGI_FORMAT_D32_FLOAT:			return DXGI_FORMAT_R32_TYPELESS;
+			case DXGI_FORMAT_D24_UNORM_S8_UINT:	return DXGI_FORMAT_R24G8_TYPELESS;
+			default: break;
+		}
+		return format;
+	}
+	return format;
+}
+
+/* static */DXGI_FORMAT DxFormatUtil::calcFormat(UsageType usage, DXGI_FORMAT format)
+{
+	switch (usage)
+	{
+		case USAGE_COUNT_OF:
+		case USAGE_UNKNOWN: 
+		{
+			return DXGI_FORMAT_UNKNOWN;
+		}
+		case USAGE_DEPTH_STENCIL:
+		{
+			switch (format)
+			{
+				case DXGI_FORMAT_D32_FLOAT:
+				case DXGI_FORMAT_R32_TYPELESS:			return DXGI_FORMAT_D32_FLOAT;
+				case DXGI_FORMAT_R24_UNORM_X8_TYPELESS:	return DXGI_FORMAT_D24_UNORM_S8_UINT;
+				case DXGI_FORMAT_R24G8_TYPELESS:		return DXGI_FORMAT_D24_UNORM_S8_UINT;
+				default: break;
+			}
+			return format;
+		}
+		case USAGE_TARGET:
+		{
+			switch (format)
+			{
+				case DXGI_FORMAT_D32_FLOAT:
+				case DXGI_FORMAT_D24_UNORM_S8_UINT: return DXGI_FORMAT_UNKNOWN;
+				case DXGI_FORMAT_R32_TYPELESS:		return DXGI_FORMAT_R32_FLOAT;
+				default: break;
+			}
+			return format;
+		}
+		case USAGE_SRV:
+		{
+			switch (format)
+			{
+				case DXGI_FORMAT_D32_FLOAT:
+				case DXGI_FORMAT_R32_TYPELESS:			return DXGI_FORMAT_R32_FLOAT;
+				case DXGI_FORMAT_R24_UNORM_X8_TYPELESS:	return DXGI_FORMAT_R24_UNORM_X8_TYPELESS;
+				default: break;
+			}
+
+			return format;
+		}
+	}
+
+	printf("Not reachable");
+	return DXGI_FORMAT_UNKNOWN;
+}
+
+bool DxFormatUtil::isTypeless(DXGI_FORMAT format)
+{
+	switch (format)
+	{
+		case DXGI_FORMAT_R32G32B32A32_TYPELESS:
+		case DXGI_FORMAT_R32G32B32_TYPELESS:
+		case DXGI_FORMAT_R16G16B16A16_TYPELESS:
+		case DXGI_FORMAT_R32G32_TYPELESS:
+		case DXGI_FORMAT_R32G8X24_TYPELESS:
+		case DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS:
+		case DXGI_FORMAT_R10G10B10A2_TYPELESS:
+		case DXGI_FORMAT_R8G8B8A8_TYPELESS:
+		case DXGI_FORMAT_R16G16_TYPELESS:
+		case DXGI_FORMAT_R32_TYPELESS:
+		case DXGI_FORMAT_R24_UNORM_X8_TYPELESS:
+		case DXGI_FORMAT_R24G8_TYPELESS: 
+		case DXGI_FORMAT_R8G8_TYPELESS:
+		case DXGI_FORMAT_R16_TYPELESS:
+		case DXGI_FORMAT_R8_TYPELESS:
+		case DXGI_FORMAT_BC1_TYPELESS:
+		case DXGI_FORMAT_BC2_TYPELESS:
+		case DXGI_FORMAT_BC3_TYPELESS:
+		case DXGI_FORMAT_BC4_TYPELESS:
+		case DXGI_FORMAT_BC5_TYPELESS:
+		case DXGI_FORMAT_B8G8R8A8_TYPELESS:
+		case DXGI_FORMAT_BC6H_TYPELESS:
+		case DXGI_FORMAT_BC7_TYPELESS:
+		{
+			return true;
+		}
+		default: break;
+	}
+	return false;
+}
+
+/* static */int DxFormatUtil::getNumColorChannelBits(DXGI_FORMAT fmt)
+{
+	switch (fmt)
+	{
+		case DXGI_FORMAT_R32G32B32A32_TYPELESS:
+		case DXGI_FORMAT_R32G32B32A32_FLOAT:
+		case DXGI_FORMAT_R32G32B32A32_UINT:
+		case DXGI_FORMAT_R32G32B32A32_SINT:
+		case DXGI_FORMAT_R32G32B32_TYPELESS:
+		case DXGI_FORMAT_R32G32B32_FLOAT:
+		case DXGI_FORMAT_R32G32B32_UINT:
+		case DXGI_FORMAT_R32G32B32_SINT:
+			return 32;
+
+		case DXGI_FORMAT_R16G16B16A16_TYPELESS:
+		case DXGI_FORMAT_R16G16B16A16_FLOAT:
+		case DXGI_FORMAT_R16G16B16A16_UNORM:
+		case DXGI_FORMAT_R16G16B16A16_UINT:
+		case DXGI_FORMAT_R16G16B16A16_SNORM:
+		case DXGI_FORMAT_R16G16B16A16_SINT:
+			return 16;
+
+		case DXGI_FORMAT_R10G10B10A2_TYPELESS:
+		case DXGI_FORMAT_R10G10B10A2_UNORM:
+		case DXGI_FORMAT_R10G10B10A2_UINT:
+		case DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM:
+			return 10;
+
+		case DXGI_FORMAT_R8G8B8A8_TYPELESS:
+		case DXGI_FORMAT_R8G8B8A8_UNORM:
+		case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB:
+		case DXGI_FORMAT_R8G8B8A8_UINT:
+		case DXGI_FORMAT_R8G8B8A8_SNORM:
+		case DXGI_FORMAT_R8G8B8A8_SINT:
+		case DXGI_FORMAT_B8G8R8A8_UNORM:
+		case DXGI_FORMAT_B8G8R8X8_UNORM:
+		case DXGI_FORMAT_B8G8R8A8_TYPELESS:
+		case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB:
+		case DXGI_FORMAT_B8G8R8X8_TYPELESS:
+		case DXGI_FORMAT_B8G8R8X8_UNORM_SRGB:
+			return 8;
+
+		case DXGI_FORMAT_B5G6R5_UNORM:
+		case DXGI_FORMAT_B5G5R5A1_UNORM:
+			return 5;
+
+		case DXGI_FORMAT_B4G4R4A4_UNORM:
+			return 4;
+
+		default:
+			return 0;
+	}
+}
+
+
+} // namespace Common 
+} // namespace nvidia