1 files changed, 85 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/texture_format_table_utils.h b/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/texture_format_table_utils.h
new file mode 100644
index 0000000000..d5351ff882
--- /dev/null
+++ b/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/texture_format_table_utils.h
@@ -0,0 +1,85 @@
+//
+// Copyright 2016 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// Helper routines for the D3D11 texture format table.
+
+#ifndef LIBANGLE_RENDERER_D3D_D3D11_TEXTURE_FORMAT_TABLE_UTILS_H_
+#define LIBANGLE_RENDERER_D3D_D3D11_TEXTURE_FORMAT_TABLE_UTILS_H_
+
+#include "libANGLE/renderer/d3d/d3d11/Renderer11.h"
+
+namespace rx
+{
+
+namespace d3d11
+{
+
+using FormatSupportFunction = bool (*)(const Renderer11DeviceCaps &);
+
+inline bool OnlyFL10Plus(const Renderer11DeviceCaps &deviceCaps)
+{
+    return (deviceCaps.featureLevel >= D3D_FEATURE_LEVEL_10_0);
+}
+
+inline bool OnlyFL9_3(const Renderer11DeviceCaps &deviceCaps)
+{
+    return (deviceCaps.featureLevel == D3D_FEATURE_LEVEL_9_3);
+}
+
+inline bool SupportsFormat(DXGI_FORMAT format, const Renderer11DeviceCaps &deviceCaps)
+{
+    // Must support texture, SRV and RTV support
+    UINT mustSupport = D3D11_FORMAT_SUPPORT_TEXTURE2D | D3D11_FORMAT_SUPPORT_TEXTURECUBE |
+                       D3D11_FORMAT_SUPPORT_SHADER_SAMPLE | D3D11_FORMAT_SUPPORT_MIP |
+                       D3D11_FORMAT_SUPPORT_RENDER_TARGET;
+    UINT minimumRequiredSamples = 0;
+
+    if (d3d11_gl::GetMaximumClientVersion(deviceCaps.featureLevel).major > 2)
+    {
+        mustSupport |= D3D11_FORMAT_SUPPORT_TEXTURE3D;
+
+        // RGBA4, RGB5A1 and RGB565 are all required multisampled renderbuffer formats in ES3 and
+        // need to support a minimum of 4 samples.
+        minimumRequiredSamples = 4;
+    }
+
+    bool fullSupport = false;
+    if (format == DXGI_FORMAT_B5G6R5_UNORM)
+    {
+        // All hardware that supports DXGI_FORMAT_B5G6R5_UNORM should support autogen mipmaps, but
+        // check anyway.
+        mustSupport |= D3D11_FORMAT_SUPPORT_MIP_AUTOGEN;
+        fullSupport = ((deviceCaps.B5G6R5support & mustSupport) == mustSupport) &&
+                      deviceCaps.B5G6R5maxSamples >= minimumRequiredSamples;
+    }
+    else if (format == DXGI_FORMAT_B4G4R4A4_UNORM)
+    {
+        fullSupport = ((deviceCaps.B4G4R4A4support & mustSupport) == mustSupport) &&
+                      deviceCaps.B4G4R4A4maxSamples >= minimumRequiredSamples;
+    }
+    else if (format == DXGI_FORMAT_B5G5R5A1_UNORM)
+    {
+        fullSupport = ((deviceCaps.B5G5R5A1support & mustSupport) == mustSupport) &&
+                      deviceCaps.B5G5R5A1maxSamples >= minimumRequiredSamples;
+    }
+    else
+    {
+        UNREACHABLE();
+        return false;
+    }
+
+    // This means that ANGLE would like to use the entry in the map if the inputted DXGI format
+    // *IS* supported.
+    // e.g. the entry might map GL_RGB5_A1 to DXGI_FORMAT_B5G5R5A1, which should only be used if
+    // DXGI_FORMAT_B5G5R5A1 is supported.
+    // In this case, we should only return 'true' if the format *IS* supported.
+    return fullSupport;
+}
+
+}  // namespace d3d11
+
+}  // namespace rx
+
+#endif  // LIBANGLE_RENDERER_D3D_D3D11_TEXTURE_FORMAT_TABLE_UTILS_H_