[reactos] 215/218: [WINESYNC] d3dx9_36: Filter out D3DCompile warning messages that are not present with D3DCompileShader. (try 4)

[winesync]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=489e520163b6ae3ab83d77...

commit 489e520163b6ae3ab83d77290ff70b4a3a2de7c3
Author:     winesync [e-mail]
AuthorDate: Tue Jan 5 13:22:40 2021 +0100
Commit:     Jérôme Gardou [e-mail]
CommitDate: Thu Feb 4 16:37:07 2021 +0100

[WINESYNC] d3dx9_36: Filter out D3DCompile warning messages that are not present with D3DCompileShader. (try 4)

This patch fixes vertex processing issue of bug 33770.

The problem comes from the fact that even if the call succeeds,
    the game interprets a non null error_messages pointer as an error.

By calling D3DCompile we use a newer version of the compiler which is more
    strict and generates the following warning.
      - warning X3206: 'dot': implicit truncation of vector type
      - warning X3206: implicit truncation of vector type
      - warning X3206: 'mul': implicit truncation of vector type
    D3DCompileShader does not generate such warnings.

These is confirmed in the DX SDK release note:
    New Warning X3206: Implicit Truncation of Vector Type
    Beginning in the August 2009 release of the DirectX SDK, the compiler will warn
    when an implicit truncation of a vector type occurs.

The warnings cannot be disable so this patch filters out these strings in D3DCompileShader
    and reset the error messages pointer if the resulting buffer is empty.

Try 2:
      - only filter out lines containing "X3206:" in case d3dcompiler_43 has localization

Try 3:
      - use move in place instead of copying the buffer

Try 4:
      - filter simplification by Sebastian and remove 'mul' testing left-out in search string

wine-staging patch by Christian Costa [e-mail]
---
 dll/directx/wine/d3dx9_36/shader.c                 | 35 ++++++++++++++++
 ...not_present_with_D3DCompileShader._(try_4).diff | 46 ++++++++++++++++++++++
 2 files changed, 81 insertions(+)

diff --git a/dll/directx/wine/d3dx9_36/shader.c b/dll/directx/wine/d3dx9_36/shader.c
index c54bacc364b..ce9d8aef596 100644
--- a/dll/directx/wine/d3dx9_36/shader.c
+++ b/dll/directx/wine/d3dx9_36/shader.c
@@ -445,6 +445,41 @@ HRESULT WINAPI D3DXCompileShader(const char *data, UINT length, const D3DXMACRO
         }
     }

+    /* Filter out D3DCompile warning messages that are not present with D3DCompileShader */
+    if (SUCCEEDED(hr) && error_msgs && *error_msgs)
+    {
+        char *messages = ID3DXBuffer_GetBufferPointer(*error_msgs);
+        DWORD size     = ID3DXBuffer_GetBufferSize(*error_msgs);
+
+        /* Ensure messages are null terminated for safe processing */
+        if (size) messages[size - 1] = 0;
+
+        while (size > 1)
+        {
+            char *prev, *next;
+
+            /* Warning has the form "warning X3206: ... implicit truncation of vector type"
+               but we only search for "X3206:" in case d3dcompiler_43 has localization */
+            prev = next = strstr(messages, "X3206:");
+            if (!prev) break;
+
+            /* get pointer to beginning and end of current line */
+            while (prev > messages && *(prev - 1) != '\n') prev--;
+            while (next < messages + size - 1 && *next != '\n') next++;
+            if (next < messages + size - 1 && *next == '\n') next++;
+
+            memmove(prev, next, messages + size - next);
+            size -= (next - prev);
+        }
+
+        /* Only return a buffer if the resulting string is not empty as some apps depend on that */
+        if (size <= 1)
+        {
+            ID3DXBuffer_Release(*error_msgs);
+            *error_msgs = NULL;
+        }
+    }
+
     return hr;
 }

diff --git a/sdk/tools/winesync/d3dx9_staging/0012-d3dx9_36__Filter_out_D3DCompile_warning_messages_that_are_not_present_with_D3DCompileShader._(try_4).diff b/sdk/tools/winesync/d3dx9_staging/0012-d3dx9_36__Filter_out_D3DCompile_warning_messages_that_are_not_present_with_D3DCompileShader._(try_4).diff
new file mode 100644
index 00000000000..9ea5f15bb64
--- /dev/null
+++ b/sdk/tools/winesync/d3dx9_staging/0012-d3dx9_36__Filter_out_D3DCompile_warning_messages_that_are_not_present_with_D3DCompileShader._(try_4).diff
@@ -0,0 +1,46 @@
+diff --git a/dll/directx/wine/d3dx9_36/shader.c b/dll/directx/wine/d3dx9_36/shader.c
+index 1c6acc8..3e0d922 100644
+--- a/dll/directx/wine/d3dx9_36/shader.c
++++ b/dll/directx/wine/d3dx9_36/shader.c
+@@ -441,6 +441,41 @@ HRESULT WINAPI D3DXCompileShader(const char *data, UINT length, const D3DXMACRO 
+         }
+     }
+ 
++    /* Filter out D3DCompile warning messages that are not present with D3DCompileShader */
++    if (SUCCEEDED(hr) && error_msgs && *error_msgs)
++    {
++        char *messages = ID3DXBuffer_GetBufferPointer(*error_msgs);
++        DWORD size     = ID3DXBuffer_GetBufferSize(*error_msgs);
++
++        /* Ensure messages are null terminated for safe processing */
++        if (size) messages[size - 1] = 0;
++
++        while (size > 1)
++        {
++            char *prev, *next;
++
++            /* Warning has the form "warning X3206: ... implicit truncation of vector type"
++               but we only search for "X3206:" in case d3dcompiler_43 has localization */
++            prev = next = strstr(messages, "X3206:");
++            if (!prev) break;
++
++            /* get pointer to beginning and end of current line */
++            while (prev > messages && *(prev - 1) != '\n') prev--;
++            while (next < messages + size - 1 && *next != '\n') next++;
++            if (next < messages + size - 1 && *next == '\n') next++;
++
++            memmove(prev, next, messages + size - next);
++            size -= (next - prev);
++        }
++
++        /* Only return a buffer if the resulting string is not empty as some apps depend on that */
++        if (size <= 1)
++        {
++            ID3DXBuffer_Release(*error_msgs);
++            *error_msgs = NULL;
++        }
++    }
++
+     return hr;
+ }
+