d3dx9: Pass D3DCOMPILE_ENABLE_BACKWARDS_COMPATIBILITY when appropriate.

Manual testing shows that the backward compatible compilation is used in d3dx9 versions below 37. Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=48302Signed-off-by: Paul Gofman <gofmanp@gmail.com> Signed-off-by: Matteo Bruni <mbruni@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

d3dx9: Pass D3DCOMPILE_ENABLE_BACKWARDS_COMPATIBILITY when appropriate.
13880f8e · Paul Gofman · Alexandre Julliard · 96dab5ab · 13880f8e
Commit 13880f8e authored Jan 14, 2020 by Paul Gofman Committed by Alexandre Julliard Jan 14, 2020
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shader.c dlls/d3dx9_36/shader.c +6 -0

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--- a/dlls/d3dx9_36/shader.c
+++ b/dlls/d3dx9_36/shader.c
@@ -424,6 +424,9 @@ HRESULT WINAPI D3DXCompileShader(const char *data, UINT length, const D3DXMACRO 
            debugstr_a(data), length, defines, include, debugstr_a(function), debugstr_a(profile),
            flags, shader, error_msgs, constant_table);

+    if (D3DX_SDK_VERSION <= 36)
+        flags |= D3DCOMPILE_ENABLE_BACKWARDS_COMPATIBILITY;
+
    hr = D3DCompile(data, length, NULL, (D3D_SHADER_MACRO *)defines, (ID3DInclude *)include,
                    function, profile, flags, 0, (ID3DBlob **)shader, (ID3DBlob **)error_msgs);

@@ -504,6 +507,9 @@ HRESULT WINAPI D3DXCompileShaderFromFileW(const WCHAR *filename, const D3DXMACRO
        return D3DXERR_INVALIDDATA;
    }

+    if (D3DX_SDK_VERSION <= 36)
+        flags |= D3DCOMPILE_ENABLE_BACKWARDS_COMPATIBILITY;
+
    hr = D3DCompile(buffer, len, filename_a, (const D3D_SHADER_MACRO *)defines,
                    (ID3DInclude *)include, entrypoint, profile, flags, 0,
                    (ID3DBlob **)shader, (ID3DBlob **)error_messages);