1 files changed, 88 insertions, 33 deletions

diff --git a/src/gallium/state_trackers/wgl/shared/stw_context.c b/src/gallium/state_trackers/wgl/shared/stw_context.c
index f3c7af93f50..dd97e48b144 100644
--- a/src/gallium/state_trackers/wgl/shared/stw_context.c
+++ b/src/gallium/state_trackers/wgl/shared/stw_context.c
@@ -64,6 +64,7 @@ stw_copy_context(
 
    if (src && dst) { 
       /* FIXME */
+      assert(0);
       (void) src;
       (void) dst;
       (void) mask;
@@ -74,6 +75,30 @@ stw_copy_context(
    return ret;
 }
 
+BOOL
+stw_share_lists(
+   UINT_PTR hglrc1, 
+   UINT_PTR hglrc2 )
+{
+   struct stw_context *ctx1;
+   struct stw_context *ctx2;
+   BOOL ret = FALSE;
+
+   pipe_mutex_lock( stw_dev->mutex );
+   
+   ctx1 = stw_lookup_context_locked( hglrc1 );
+   ctx2 = stw_lookup_context_locked( hglrc2 );
+
+   if (ctx1 && ctx2 &&
+       ctx1->pfi == ctx2->pfi) { 
+      ret = _mesa_share_state(ctx2->st->ctx, ctx1->st->ctx);
+   }
+
+   pipe_mutex_unlock( stw_dev->mutex );
+   
+   return ret;
+}
+
 UINT_PTR
 stw_create_layer_context(
    HDC hdc,
@@ -85,7 +110,6 @@ stw_create_layer_context(
    GLvisual *visual = NULL;
    struct pipe_screen *screen = NULL;
    struct pipe_context *pipe = NULL;
-   UINT_PTR hglrc = 0;
 
    if(!stw_dev)
       return 0;
@@ -101,7 +125,7 @@ stw_create_layer_context(
 
    ctx = CALLOC_STRUCT( stw_context );
    if (ctx == NULL)
-      return 0;
+      goto no_ctx;
 
    ctx->hdc = hdc;
    ctx->color_bits = GetDeviceCaps( ctx->hdc, BITSPIXEL );
@@ -125,7 +149,7 @@ stw_create_layer_context(
       pf->pfd.cAccumAlphaBits,
       pf->numSamples );
    if (visual == NULL) 
-      goto fail;
+      goto no_visual;
 
    screen = stw_dev->screen;
 
@@ -137,7 +161,7 @@ stw_create_layer_context(
 
    pipe = stw_dev->stw_winsys->create_context( screen );
    if (pipe == NULL) 
-      goto fail;
+      goto no_pipe;
 
 #ifdef DEBUG
    /* Wrap context */
@@ -150,28 +174,29 @@ stw_create_layer_context(
 
    ctx->st = st_create_context( pipe, visual, NULL );
    if (ctx->st == NULL) 
-      goto fail;
+      goto no_st_ctx;
 
    ctx->st->ctx->DriverCtx = ctx;
    ctx->pfi = pf;
 
    pipe_mutex_lock( stw_dev->mutex );
-   hglrc = handle_table_add(stw_dev->ctx_table, ctx);
+   ctx->hglrc = handle_table_add(stw_dev->ctx_table, ctx);
    pipe_mutex_unlock( stw_dev->mutex );
-
-   /* Success?
-    */
-   if (hglrc != 0)
-      return hglrc;
-
-fail:
-   if (visual)
-      _mesa_destroy_visual( visual );
-   
-   if (pipe)
-      pipe->destroy( pipe );
-      
+   if (!ctx->hglrc)
+      goto no_hglrc;
+
+   return ctx->hglrc;
+
+no_hglrc:
+   st_destroy_context(ctx->st);
+   goto no_pipe; /* st_context_destroy already destroys pipe */
+no_st_ctx:
+   pipe->destroy( pipe );
+no_pipe:
+   _mesa_destroy_visual( visual );
+no_visual:
    FREE( ctx );
+no_ctx:
    return 0;
 }
 
@@ -253,31 +278,64 @@ stw_release_context(
 /* Find the width and height of the window named by hdc.
  */
 static void
-stw_get_window_size( HDC hdc, GLuint *width, GLuint *height )
+stw_get_window_size( HDC hdc, GLuint *pwidth, GLuint *pheight )
 {
-   if (WindowFromDC( hdc )) {
-      RECT rect;
+   GLuint width, height;
+   HWND hwnd;
 
-      GetClientRect( WindowFromDC( hdc ), &rect );
-      *width = rect.right - rect.left;
-      *height = rect.bottom - rect.top;
+   hwnd = WindowFromDC( hdc );
+   if (hwnd) {
+      RECT rect;
+      GetClientRect( hwnd, &rect );
+      width = rect.right - rect.left;
+      height = rect.bottom - rect.top;
    }
    else {
-      *width = GetDeviceCaps( hdc, HORZRES );
-      *height = GetDeviceCaps( hdc, VERTRES );
+      width = GetDeviceCaps( hdc, HORZRES );
+      height = GetDeviceCaps( hdc, VERTRES );
    }
+
+   if(width < 1)
+      width = 1;
+   if(height < 1)
+      height = 1;
+
+   *pwidth = width; 
+   *pheight = height; 
 }
 
 UINT_PTR
 stw_get_current_context( void )
 {
-   return stw_tls_get_data()->currentGLRC;
+   GET_CURRENT_CONTEXT( glcurctx );
+   struct stw_context *ctx;
+
+   if(!glcurctx)
+      return 0;
+   
+   ctx = (struct stw_context *)glcurctx->DriverCtx;
+   assert(ctx);
+   if(!ctx)
+      return 0;
+   
+   return ctx->hglrc;
 }
 
 HDC
 stw_get_current_dc( void )
 {
-    return stw_tls_get_data()->currentDC;
+   GET_CURRENT_CONTEXT( glcurctx );
+   struct stw_context *ctx;
+
+   if(!glcurctx)
+      return NULL;
+   
+   ctx = (struct stw_context *)glcurctx->DriverCtx;
+   assert(ctx);
+   if(!ctx)
+      return NULL;
+   
+   return ctx->hdc;
 }
 
 BOOL
@@ -290,7 +348,7 @@ stw_make_current(
    struct stw_framebuffer *fb;
    GLuint width = 0;
    GLuint height = 0;
-   struct stw_context *curctx;
+   struct stw_context *curctx = NULL;
 
    if (!stw_dev)
       return FALSE;
@@ -299,9 +357,6 @@ stw_make_current(
    ctx = stw_lookup_context_locked( hglrc );
    pipe_mutex_unlock( stw_dev->mutex );
 
-   stw_tls_get_data()->currentDC = hdc;
-   stw_tls_get_data()->currentGLRC = hglrc;
-
    if (glcurctx != NULL) {
       curctx = (struct stw_context *) glcurctx->DriverCtx;