wined3d: Reference the indirect buffer bo in wined3d_context_gl_draw_indirect().

dlls/wined3d/context_gl.c

@@ -4488,8 +4488,8 @@ static void wined3d_context_gl_draw_indirect(struct wined3d_context_gl *context_
         const struct wined3d_indirect_draw_parameters *parameters, unsigned int idx_size)
 {
     GLenum gl_primitive_type = gl_primitive_type_from_d3d(state->primitive_type);
+    struct wined3d_buffer_gl *buffer_gl = wined3d_buffer_gl(parameters->buffer);
     const struct wined3d_gl_info *gl_info = context_gl->gl_info;
-    struct wined3d_buffer *buffer = parameters->buffer;
     const void *offset;
 
     if (!gl_info->supported[ARB_DRAW_INDIRECT])
@@ -4498,7 +4498,7 @@ static void wined3d_context_gl_draw_indirect(struct wined3d_context_gl *context_
         return;
     }
 
-    GL_EXTCALL(glBindBuffer(GL_DRAW_INDIRECT_BUFFER, wined3d_buffer_gl(buffer)->bo.id));
+    GL_EXTCALL(glBindBuffer(GL_DRAW_INDIRECT_BUFFER, buffer_gl->bo.id));
 
     offset = (void *)(GLintptr)parameters->offset;
     if (idx_size)
@@ -4514,6 +4514,7 @@ static void wined3d_context_gl_draw_indirect(struct wined3d_context_gl *context_
     }
 
     GL_EXTCALL(glBindBuffer(GL_DRAW_INDIRECT_BUFFER, 0));
+    wined3d_context_gl_reference_bo(context_gl, &buffer_gl->bo);
 
     checkGLcall("draw indirect");
 }