+static struct pipe_sampler_view *
+identity_create_sampler_view(struct pipe_context *pipe,
+ struct pipe_texture *texture,
+ const struct pipe_sampler_view *templ)
+{
+ struct identity_context *id_pipe = identity_context(pipe);
+ struct identity_texture *id_texture = identity_texture(texture);
+ struct pipe_context *pipe_unwrapped = id_pipe->pipe;
+ struct pipe_texture *texture_unwrapped = id_texture->texture;
+ struct identity_sampler_view *view = malloc(sizeof(struct identity_sampler_view));
+
+ view->sampler_view = pipe_unwrapped->create_sampler_view(pipe_unwrapped,
+ texture_unwrapped,
+ templ);
+
+ view->base = *templ;
+ view->base.reference.count = 1;
+ view->base.texture = NULL;
+ pipe_texture_reference(&view->base.texture, texture);
+ view->base.context = pipe;
+
+ return &view->base;
+}
+
+static void
+identity_sampler_view_destroy(struct pipe_context *pipe,
+ struct pipe_sampler_view *view)
+{
+ struct identity_context *id_pipe = identity_context(pipe);
+ struct identity_sampler_view *id_view = identity_sampler_view(view);
+ struct pipe_context *pipe_unwrapped = id_pipe->pipe;
+ struct pipe_sampler_view *view_unwrapped = id_view->sampler_view;
+
+ pipe_unwrapped->sampler_view_destroy(pipe_unwrapped,
+ view_unwrapped);
+
+ pipe_texture_reference(&view->texture, NULL);
+ free(view);
+}
+
+
+static struct pipe_transfer *
+identity_context_get_tex_transfer(struct pipe_context *_context,
+ struct pipe_texture *_texture,
+ unsigned face,
+ unsigned level,
+ unsigned zslice,
+ enum pipe_transfer_usage usage,
+ unsigned x,
+ unsigned y,
+ unsigned w,
+ unsigned h)
+{
+ struct identity_context *id_context = identity_context(_context);
+ struct identity_texture *id_texture = identity_texture(_texture);
+ struct pipe_context *context = id_context->pipe;
+ struct pipe_texture *texture = id_texture->texture;
+ struct pipe_transfer *result;
+
+ result = context->get_tex_transfer(context,
+ texture,
+ face,
+ level,
+ zslice,
+ usage,
+ x,
+ y,
+ w,
+ h);
+
+ if (result)
+ return identity_transfer_create(id_context, id_texture, result);
+ return NULL;
+}
+
+static void
+identity_context_tex_transfer_destroy(struct pipe_context *_pipe,
+ struct pipe_transfer *_transfer)
+{
+ identity_transfer_destroy(identity_context(_pipe),
+ identity_transfer(_transfer));
+}
+
+static void *
+identity_context_transfer_map(struct pipe_context *_context,
+ struct pipe_transfer *_transfer)
+{
+ struct identity_context *id_context = identity_context(_context);
+ struct identity_transfer *id_transfer = identity_transfer(_transfer);
+ struct pipe_context *context = id_context->pipe;
+ struct pipe_transfer *transfer = id_transfer->transfer;
+
+ return context->transfer_map(context,
+ transfer);
+}
+
+static void
+identity_context_transfer_unmap(struct pipe_context *_context,
+ struct pipe_transfer *_transfer)
+{
+ struct identity_context *id_context = identity_context(_context);
+ struct identity_transfer *id_transfer = identity_transfer(_transfer);
+ struct pipe_context *context = id_context->pipe;
+ struct pipe_transfer *transfer = id_transfer->transfer;
+
+ context->transfer_unmap(context,
+ transfer);
+}
+