[PATCH 4/6] opengl32: Keep a global WOW64 buffer storage map.

[Rémi Bernon]

From: Rémi Bernon <[e-mail]>

Buffer names on the unix side are now valid across contexts.
---
 dlls/opengl32/unix_wgl.c | 56 ++++++++++++++++------------------------
 1 file changed, 22 insertions(+), 34 deletions(-)

diff --git a/dlls/opengl32/unix_wgl.c b/dlls/opengl32/unix_wgl.c
index c1a21c58245..2abeda46196 100644
--- a/dlls/opengl32/unix_wgl.c
+++ b/dlls/opengl32/unix_wgl.c
@@ -187,6 +187,7 @@ struct vk_device
 
 static ULONG_PTR zero_bits;
 
+static struct buffers *buffers;
 static const struct vulkan_funcs *vk_funcs;
 static VkInstance vk_instance;
 static PFN_vkDestroyInstance p_vkDestroyInstance;
@@ -409,7 +410,7 @@ void free_buffer( const struct opengl_funcs *funcs, struct buffer *buffer )
     free( buffer );
 }
 
-static void release_buffers( const struct opengl_funcs *funcs, struct buffers *buffers )
+static void release_buffers( const struct opengl_funcs *funcs )
 {
     struct buffer *buffer, *next;
 
@@ -418,6 +419,18 @@ static void release_buffers( const struct opengl_funcs *funcs, struct buffers *b
     RB_FOR_EACH_ENTRY_DESTRUCTOR( buffer, next, &buffers->map, struct buffer, entry )
         free_buffer( funcs, buffer );
     free( buffers );
+    buffers = NULL;
+}
+
+static struct buffers *acquire_buffers(void)
+{
+    if (buffers) buffers->ref++;
+    else if ((buffers = malloc( sizeof(*buffers ))))
+    {
+        buffers->ref = 1;
+        rb_init( &buffers->map, compare_buffer_name );
+    }
+    return buffers;
 }
 
 static struct context *context_from_client_context( HGLRC client_context )
@@ -433,23 +446,15 @@ static struct context *update_context( TEB *teb, HGLRC client_context, struct co
 {
     struct opengl_client_context *client = opengl_client_context_from_client( client_context );
     const struct opengl_funcs *funcs = get_context_funcs( client_context );
-    struct context *share;
 
     if (client->current_tid) return ctx; /* currently in use */
     if (ctx->share == (HGLRC)-1) return ctx; /* not re-shared */
 
-    share = ctx->share ? get_updated_context( teb, ctx->share ) : NULL;
     if (!funcs->p_context_reset( &ctx->base, ctx->attribs ))
     {
         WARN( "Failed to re-create context for wglShareLists\n" );
         return ctx;
     }
-    if (share && share->buffers)
-    {
-        release_buffers( funcs, ctx->buffers );
-        ctx->buffers = share->buffers;
-        ctx->buffers->ref++;
-    }
     ctx->share = (HGLRC)-1; /* initial shared context */
     copy_context_attributes( teb, client_context, ctx, client_context, ctx, ctx->used );
     return ctx;
@@ -869,7 +874,7 @@ static BOOL initialize_vk_device( TEB *teb, struct context *ctx )
     static PFN_vkGetPhysicalDeviceMemoryProperties p_vkGetPhysicalDeviceMemoryProperties;
     static PFN_vkGetPhysicalDeviceProperties2KHR p_vkGetPhysicalDeviceProperties2KHR;
 
-    if (ctx->buffers->vk_device) return TRUE; /* already initialized */
+    if (buffers->vk_device) return TRUE; /* already initialized */
     if (!client->extensions[GL_EXT_memory_object_win32] )
     {
         TRACE( "GL_EXT_memory_object_win32 is not supported\n" );
@@ -930,7 +935,7 @@ static BOOL initialize_vk_device( TEB *teb, struct context *ctx )
             vk_device = RB_ENTRY_VALUE( entry, struct vk_device, entry );
             if (!vk_device->vk_device) continue; /* known incompatible device */
             TRACE( "Found existing device %p for uuid %s\n", vk_device, debugstr_guid(&vk_device->uuid) );
-            ctx->buffers->vk_device = vk_device;
+            buffers->vk_device = vk_device;
             free( vk_physical_devices );
             return TRUE;
         }
@@ -1140,8 +1145,9 @@ static void make_context_current( TEB *teb, const struct opengl_funcs *funcs, HD
     ctx->pixel_mode.read_buffer = ctx->base.draw->doublebuffer ? GL_BACK : GL_FRONT;
 }
 
-static void free_context( struct context *ctx )
+static void free_context( const struct opengl_funcs *funcs, struct context *ctx )
 {
+    if (ctx->buffers) release_buffers( funcs );
     free( ctx->wow64_version );
     free( ctx->extensions );
     free( ctx->attribs );
@@ -1153,7 +1159,7 @@ BOOL wrap_wglDeleteContext( TEB *teb, HGLRC client_context )
     const struct opengl_funcs *funcs = get_context_funcs( client_context );
     struct context *ctx = context_from_client_context( client_context );
     funcs->p_context_destroy( &ctx->base );
-    free_context( ctx );
+    free_context( funcs, ctx );
     return TRUE;
 }
 
@@ -1318,7 +1324,7 @@ BOOL wrap_wglShareLists( TEB *teb, HGLRC client_src, HGLRC client_dst )
 HGLRC wrap_wglCreateContextAttribsARB( TEB *teb, HDC hdc, HGLRC client_shared, const int *attribs, HGLRC client_context )
 {
     const struct opengl_funcs *funcs = get_dc_funcs( hdc );
-    struct context *context, *shared = get_updated_context( teb, client_shared );
+    struct context *context;
 
     if (!funcs->p_context_create) return 0;
     if (!(context = calloc( 1, sizeof(*context) )))
@@ -1330,29 +1336,11 @@ HGLRC wrap_wglCreateContextAttribsARB( TEB *teb, HDC hdc, HGLRC client_shared, c
     context->share = (HGLRC)-1; /* initial shared context */
     context->attribs = memdup_attribs( attribs );
 
-    if (is_win64 && is_wow64())
-    {
-        if (shared)
-        {
-            context->buffers = shared->buffers;
-            context->buffers->ref++;
-        }
-        else if (!(context->buffers = malloc( sizeof(*context->buffers ))))
-        {
-            free_context( context );
-            return 0;
-        }
-        else
-        {
-            context->buffers->ref = 1;
-            context->buffers->vk_device = NULL;
-            rb_init( &context->buffers->map, compare_buffer_name );
-        }
-    }
+    if (is_win64 && is_wow64()) context->buffers = acquire_buffers();
 
     if (!(funcs->p_context_create( &context->base, hdc, attribs )))
     {
-        free_context( context );
+        free_context( funcs, context );
         return 0;
     }
 
-- 
GitLab


https://gitlab.winehq.org/wine/wine/-/merge_requests/11161