[PATCH v2 0/2] MR3053: opengl32: Do not expose ARB_buffer_storage on wow64.

[Zebediah Figura (＠zfigura)]

We don't properly support persistent mapping, so don't pretend to support ARB_buffer_storage.

--
  v2: opengl32: Do not report a GL version higher than 4.3 on wow64.
      opengl32: Do not expose ARB_buffer_storage on wow64.

https://gitlab.winehq.org/wine/wine/-/merge_requests/3053

[PATCH v2 1/2] opengl32: Do not expose ARB_buffer_storage on wow64.

[Zebediah Figura]

From: Zebediah Figura

---
 dlls/opengl32/unix_wgl.c | 26 +++++++++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

diff --git a/dlls/opengl32/unix_wgl.c b/dlls/opengl32/unix_wgl.c
index 6c3379b90a2..efb16464d64 100644
--- a/dlls/opengl32/unix_wgl.c
+++ b/dlls/opengl32/unix_wgl.c
@@ -43,6 +43,13 @@

WINE_DEFAULT_DEBUG_CHANNEL(opengl);

+static const BOOL is_win64 = (sizeof(void *) > sizeof(int));
+
+static BOOL is_wow64(void)
+{
+    return !!NtCurrentTeb()->WowTebOffset;
+}
+
 static pthread_mutex_t wgl_lock = PTHREAD_MUTEX_INITIALIZER;

/* handle management */
@@ -168,7 +175,13 @@ static GLubyte *filter_extensions_list( const char *extensions, const char *disa
         memcpy( p, extensions, end - extensions );
         p[end - extensions] = 0;

-        if (!has_extension( disabled, p, strlen( p ) ))
+        /* We do not support GL_MAP_PERSISTENT_BIT, and hence
+         * ARB_buffer_storage, on wow64. */
+        if (is_win64 && is_wow64() && (!strcmp( p, "GL_ARB_buffer_storage" ) || !strcmp( p, "GL_EXT_buffer_storage" )))
+        {
+            TRACE( "-- %s (disabled due to wow64)\n", p );
+        }
+        else if (!has_extension( disabled, p, strlen( p ) ))
         {
             TRACE( "++ %s\n", p );
             p += end - extensions;
@@ -208,7 +221,15 @@ static GLuint *filter_extensions_index( TEB *teb, const char *disabled )
     for (j = 0; j < extensions_count; ++j)
     {
         ext = (const char *)funcs->ext.p_glGetStringi( GL_EXTENSIONS, j );
-        if (!has_extension( disabled, ext, strlen( ext ) ))
+
+        /* We do not support GL_MAP_PERSISTENT_BIT, and hence
+         * ARB_buffer_storage, on wow64. */
+        if (is_win64 && is_wow64() && (!strcmp( ext, "GL_ARB_buffer_storage" ) || !strcmp( ext, "GL_EXT_buffer_storage" )))
+        {
+            TRACE( "-- %s (disabled due to wow64)\n", ext );
+            disabled_index[i++] = j;
+        }
+        else if (!has_extension( disabled, ext, strlen( ext ) ))
         {
             TRACE( "++ %s\n", ext );
         }
@@ -329,7 +350,6 @@ static BOOL filter_extensions( TEB * teb, const char *extensions, GLubyte **exts
         else disabled = "";
     }

-    if (!disabled[0]) return FALSE;
     if (extensions && !*exts_list) *exts_list = filter_extensions_list( extensions, disabled );
     if (!*disabled_exts) *disabled_exts = filter_extensions_index( teb, disabled );
     return (exts_list && *exts_list) || *disabled_exts;

[PATCH v2 2/2] opengl32: Do not report a GL version higher than 4.3 on wow64.

[Zebediah Figura]

From: Zebediah Figura

---
 dlls/opengl32/unix_wgl.c | 53 ++++++++++++++++++++++++++++++++++++----
 1 file changed, 48 insertions(+), 5 deletions(-)

diff --git a/dlls/opengl32/unix_wgl.c b/dlls/opengl32/unix_wgl.c
index efb16464d64..978ade109f5 100644
--- a/dlls/opengl32/unix_wgl.c
+++ b/dlls/opengl32/unix_wgl.c
@@ -412,6 +412,21 @@ static BOOL check_extension_support( TEB *teb, const char *extension, const char
     return FALSE;
 }

+static void parse_gl_version(const char *gl_version, int *major, int *minor)
+{
+    const char *ptr = gl_version;
+
+    *major = atoi(ptr);
+    if (*major <= 0)
+        ERR("Invalid OpenGL major version %d.\n", *major);
+
+    while (isdigit(*ptr)) ++ptr;
+    if (*ptr++ != '.')
+        ERR("Invalid OpenGL version string %s.\n", debugstr_a(gl_version));
+
+    *minor = atoi(ptr);
+}
+
 static void wrap_glGetIntegerv( TEB *teb, GLenum pname, GLint *data )
 {
     const struct opengl_funcs *funcs = teb->glTable;
@@ -421,6 +436,21 @@ static void wrap_glGetIntegerv( TEB *teb, GLenum pname, GLint *data )

if (pname == GL_NUM_EXTENSIONS && (disabled = disabled_extensions_index( teb )))
         while (*disabled++ != ~0u) (*data)--;
+
+    if (is_win64 && is_wow64())
+    {
+        /* 4.4 depends on ARB_buffer_storage, which we don't support on wow64. */
+        if (pname == GL_MAJOR_VERSION && *data > 4)
+            *data = 4;
+        else if (pname == GL_MINOR_VERSION)
+        {
+            GLint major;
+
+            funcs->gl.p_glGetIntegerv( GL_MAJOR_VERSION, &major );
+            if (major == 4 && *data > 3)
+                *data = 3;
+        }
+    }
 }

static const GLubyte *wrap_glGetString( TEB *teb, GLenum name )
@@ -428,12 +458,25 @@ static const GLubyte *wrap_glGetString( TEB *teb, GLenum name )
     const struct opengl_funcs *funcs = teb->glTable;
     const GLubyte *ret;

-    if ((ret = funcs->gl.p_glGetString( name )) && name == GL_EXTENSIONS)
+    if ((ret = funcs->gl.p_glGetString( name )))
     {
-        struct wgl_handle *ptr = get_current_context_ptr( teb );
-        GLubyte **extensions = &ptr->u.context->extensions;
-        GLuint **disabled = &ptr->u.context->disabled_exts;
-        if (*extensions || filter_extensions( teb, (const char *)ret, extensions, disabled )) return *extensions;
+        if (name == GL_EXTENSIONS)
+        {
+            struct wgl_handle *ptr = get_current_context_ptr( teb );
+            GLubyte **extensions = &ptr->u.context->extensions;
+            GLuint **disabled = &ptr->u.context->disabled_exts;
+            if (*extensions || filter_extensions( teb, (const char *)ret, extensions, disabled )) return *extensions;
+        }
+        else if (name == GL_VERSION && is_win64 && is_wow64())
+        {
+            int major, minor;
+
+            parse_gl_version( (const char *)ret, &major, &minor );
+
+            /* 4.4 depends on ARB_buffer_storage, which we don't support on wow64. */
+            if (major > 4 || (major == 4 && minor >= 4))
+                return (const GLubyte *)"4.3";
+        }
     }

return ret;

[PATCH v2 2/2] opengl32: Do not report a GL version higher than 4.3 on wow64.

[Marvin]

Hi,

It looks like your patch introduced the new failures shown below.
Please investigate and fix them before resubmitting your patch.
If they are not new, fixing them anyway would help a lot. Otherwise
please ask for the known failures list to be updated.

The tests also ran into some preexisting test failures. If you know how
to fix them that would be helpful. See the TestBot job for the details:

The full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=133787

Your paranoid android.

=== debian11 (32 bit report) ===

Report validation errors:
quartz:vmr7 has no test summary line (early exit of the main process?)
quartz:vmr7 has unaccounted for todo messages
quartz:vmr7 has unaccounted for skip messages
quartz:vmr9 has no test summary line (early exit of the main process?)
quartz:vmr9 has unaccounted for todo messages

[Zebediah Figura (＠zfigura)]

v2: fix several errors in the original patch. This goes to show that I need to properly test my patches before sending them.

[Rémi Bernon (＠rbernon)]

Rémi Bernon (@rbernon) commented about dlls/opengl32/unix_wgl.c:
> }
>
> +static void parse_gl_version(const char *gl_version, int *major, int *minor)
> +{
> - const char *ptr = gl_version;
> -
> - *major = atoi(ptr);
> - if (*major <= 0)
> -
>    ERR("Invalid OpenGL major version %d.\n", *major);
> -
> - while (isdigit(*ptr)) ++ptr;
> - if (*ptr++ != '.')
> -
>    ERR("Invalid OpenGL version string %s.\n", debugstr_a(gl_version));
> -
> - *minor = atoi(ptr);
>
> +}

Please keep the module style consistent.