/************************************************************************** * * Copyright 2009 VMware, Inc. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * **************************************************************************/ #include "pipe/p_context.h" #include "util/u_memory.h" #include "util/u_inlines.h" #include "id_context.h" #include "id_objects.h" static void identity_destroy(struct pipe_context *_pipe) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->destroy(pipe); FREE(id_pipe); } static void identity_draw_arrays(struct pipe_context *_pipe, unsigned prim, unsigned start, unsigned count) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->draw_arrays(pipe, prim, start, count); } static void identity_draw_elements(struct pipe_context *_pipe, struct pipe_resource *_indexResource, unsigned indexSize, int indexBias, unsigned prim, unsigned start, unsigned count) { struct identity_context *id_pipe = identity_context(_pipe); struct identity_resource *id_resource = identity_resource(_indexResource); struct pipe_context *pipe = id_pipe->pipe; struct pipe_resource *indexResource = id_resource->resource; pipe->draw_elements(pipe, indexResource, indexSize, indexBias, prim, start, count); } static void identity_draw_range_elements(struct pipe_context *_pipe, struct pipe_resource *_indexResource, unsigned indexSize, int indexBias, unsigned minIndex, unsigned maxIndex, unsigned mode, unsigned start, unsigned count) { struct identity_context *id_pipe = identity_context(_pipe); struct identity_resource *id_resource = identity_resource(_indexResource); struct pipe_context *pipe = id_pipe->pipe; struct pipe_resource *indexResource = id_resource->resource; pipe->draw_range_elements(pipe, indexResource, indexSize, indexBias, minIndex, maxIndex, mode, start, count); } static struct pipe_query * identity_create_query(struct pipe_context *_pipe, unsigned query_type) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; return pipe->create_query(pipe, query_type); } static void identity_destroy_query(struct pipe_context *_pipe, struct pipe_query *query) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->destroy_query(pipe, query); } static void identity_begin_query(struct pipe_context *_pipe, struct pipe_query *query) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->begin_query(pipe, query); } static void identity_end_query(struct pipe_context *_pipe, struct pipe_query *query) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->end_query(pipe, query); } static boolean identity_get_query_result(struct pipe_context *_pipe, struct pipe_query *query, boolean wait, uint64_t *result) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; return pipe->get_query_result(pipe, query, wait, result); } static void * identity_create_blend_state(struct pipe_context *_pipe, const struct pipe_blend_state *blend) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; return pipe->create_blend_state(pipe, blend); } static void identity_bind_blend_state(struct pipe_context *_pipe, void *blend) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->bind_blend_state(pipe, blend); } static void identity_delete_blend_state(struct pipe_context *_pipe, void *blend) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->delete_blend_state(pipe, blend); } static void * identity_create_sampler_state(struct pipe_context *_pipe, const struct pipe_sampler_state *sampler) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; return pipe->create_sampler_state(pipe, sampler); } static void identity_bind_fragment_sampler_states(struct pipe_context *_pipe, unsigned num_samplers, void **samplers) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->bind_fragment_sampler_states(pipe, num_samplers, samplers); } static void identity_bind_vertex_sampler_states(struct pipe_context *_pipe, unsigned num_samplers, void **samplers) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->bind_vertex_sampler_states(pipe, num_samplers, samplers); } static void identity_delete_sampler_state(struct pipe_context *_pipe, void *sampler) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->delete_sampler_state(pipe, sampler); } static void * identity_create_rasterizer_state(struct pipe_context *_pipe, const struct pipe_rasterizer_state *rasterizer) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; return pipe->create_rasterizer_state(pipe, rasterizer); } static void identity_bind_rasterizer_state(struct pipe_context *_pipe, void *rasterizer) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->bind_rasterizer_state(pipe, rasterizer); } static void identity_delete_rasterizer_state(struct pipe_context *_pipe, void *rasterizer) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->delete_rasterizer_state(pipe, rasterizer); } static void * identity_create_depth_stencil_alpha_state(struct pipe_context *_pipe, const struct pipe_depth_stencil_alpha_state *depth_stencil_alpha) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; return pipe->create_depth_stencil_alpha_state(pipe, depth_stencil_alpha); } static void identity_bind_depth_stencil_alpha_state(struct pipe_context *_pipe, void *depth_stencil_alpha) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->bind_depth_stencil_alpha_state(pipe, depth_stencil_alpha); } static void identity_delete_depth_stencil_alpha_state(struct pipe_context *_pipe, void *depth_stencil_alpha) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->delete_depth_stencil_alpha_state(pipe, depth_stencil_alpha); } static void * identity_create_fs_state(struct pipe_context *_pipe, const struct pipe_shader_state *fs) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; return pipe->create_fs_state(pipe, fs); } static void identity_bind_fs_state(struct pipe_context *_pipe, void *fs) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->bind_fs_state(pipe, fs); } static void identity_delete_fs_state(struct pipe_context *_pipe, void *fs) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->delete_fs_state(pipe, fs); } static void * identity_create_vs_state(struct pipe_context *_pipe, const struct pipe_shader_state *vs) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; return pipe->create_vs_state(pipe, vs); } static void identity_bind_vs_state(struct pipe_context *_pipe, void *vs) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->bind_vs_state(pipe, vs); } static void identity_delete_vs_state(struct pipe_context *_pipe, void *vs) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->delete_vs_state(pipe, vs); } static void * identity_create_vertex_elements_state(struct pipe_context *_pipe, unsigned num_elements, const struct pipe_vertex_element *vertex_elements) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; return pipe->create_vertex_elements_state(pipe, num_elements, vertex_elements); } static void identity_bind_vertex_elements_state(struct pipe_context *_pipe, void *velems) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->bind_vertex_elements_state(pipe, velems); } static void identity_delete_vertex_elements_state(struct pipe_context *_pipe, void *velems) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->delete_vertex_elements_state(pipe, velems); } static void identity_set_blend_color(struct pipe_context *_pipe, const struct pipe_blend_color *blend_color) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->set_blend_color(pipe, blend_color); } static void identity_set_stencil_ref(struct pipe_context *_pipe, const struct pipe_stencil_ref *stencil_ref) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->set_stencil_ref(pipe, stencil_ref); } static void identity_set_clip_state(struct pipe_context *_pipe, const struct pipe_clip_state *clip) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->set_clip_state(pipe, clip); } static void identity_set_constant_buffer(struct pipe_context *_pipe, uint shader, uint index, struct pipe_resource *_resource) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; struct pipe_resource *unwrapped_resource; struct pipe_resource *resource = NULL; /* XXX hmm? unwrap the input state */ if (_resource) { unwrapped_resource = identity_resource_unwrap(_resource); resource = unwrapped_resource; } pipe->set_constant_buffer(pipe, shader, index, resource); } static void identity_set_framebuffer_state(struct pipe_context *_pipe, const struct pipe_framebuffer_state *_state) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; struct pipe_framebuffer_state unwrapped_state; struct pipe_framebuffer_state *state = NULL; unsigned i; /* unwrap the input state */ if (_state) { memcpy(&unwrapped_state, _state, sizeof(unwrapped_state)); for(i = 0; i < _state->nr_cbufs; i++) unwrapped_state.cbufs[i] = identity_surface_unwrap(_state->cbufs[i]); for (; i < PIPE_MAX_COLOR_BUFS; i++) unwrapped_state.cbufs[i] = NULL; unwrapped_state.zsbuf = identity_surface_unwrap(_state->zsbuf); state = &unwrapped_state; } pipe->set_framebuffer_state(pipe, state); } static void identity_set_polygon_stipple(struct pipe_context *_pipe, const struct pipe_poly_stipple *poly_stipple) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->set_polygon_stipple(pipe, poly_stipple); } static void identity_set_scissor_state(struct pipe_context *_pipe, const struct pipe_scissor_state *scissor) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->set_scissor_state(pipe, scissor); } static void identity_set_viewport_state(struct pipe_context *_pipe, const struct pipe_viewport_state *viewport) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->set_viewport_state(pipe, viewport); } static void identity_set_fragment_sampler_views(struct pipe_context *_pipe, unsigned num, struct pipe_sampler_view **_views) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; struct pipe_sampler_view *unwrapped_views[PIPE_MAX_SAMPLERS]; struct pipe_sampler_view **views = NULL; unsigned i; if (_views) { for (i = 0; i < num; i++) unwrapped_views[i] = identity_sampler_view_unwrap(_views[i]); for (; i < PIPE_MAX_SAMPLERS; i++) unwrapped_views[i] = NULL; views = unwrapped_views; } pipe->set_fragment_sampler_views(pipe, num, views); } static void identity_set_vertex_sampler_views(struct pipe_context *_pipe, unsigned num, struct pipe_sampler_view **_views) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; struct pipe_sampler_view *unwrapped_views[PIPE_MAX_VERTEX_SAMPLERS]; struct pipe_sampler_view **views = NULL; unsigned i; if (_views) { for (i = 0; i < num; i++) unwrapped_views[i] = identity_sampler_view_unwrap(_views[i]); for (; i < PIPE_MAX_VERTEX_SAMPLERS; i++) unwrapped_views[i] = NULL; views = unwrapped_views; } pipe->set_vertex_sampler_views(pipe, num, views); } static void identity_set_vertex_buffers(struct pipe_context *_pipe, unsigned num_buffers, const struct pipe_vertex_buffer *_buffers) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; struct pipe_vertex_buffer unwrapped_buffers[PIPE_MAX_SHADER_INPUTS]; struct pipe_vertex_buffer *buffers = NULL; unsigned i; if (num_buffers) { memcpy(unwrapped_buffers, _buffers, num_buffers * sizeof(*_buffers)); for (i = 0; i < num_buffers; i++) unwrapped_buffers[i].buffer = identity_resource_unwrap(_buffers[i].buffer); buffers = unwrapped_buffers; } pipe->set_vertex_buffers(pipe, num_buffers, buffers); } static void identity_surface_copy(struct pipe_context *_pipe, struct pipe_surface *_dst, unsigned dstx, unsigned dsty, struct pipe_surface *_src, unsigned srcx, unsigned srcy, unsigned width, unsigned height) { struct identity_context *id_pipe = identity_context(_pipe); struct identity_surface *id_surface_dst = identity_surface(_dst); struct identity_surface *id_surface_src = identity_surface(_src); struct pipe_context *pipe = id_pipe->pipe; struct pipe_surface *dst = id_surface_dst->surface; struct pipe_surface *src = id_surface_src->surface; pipe->surface_copy(pipe, dst, dstx, dsty, src, srcx, srcy, width, height); } static void identity_surface_fill(struct pipe_context *_pipe, struct pipe_surface *_dst, unsigned dstx, unsigned dsty, unsigned width, unsigned height, unsigned value) { struct identity_context *id_pipe = identity_context(_pipe); struct identity_surface *id_surface_dst = identity_surface(_dst); struct pipe_context *pipe = id_pipe->pipe; struct pipe_surface *dst = id_surface_dst->surface; pipe->surface_fill(pipe, dst, dstx, dsty, width, height, value); } static void identity_clear(struct pipe_context *_pipe, unsigned buffers, const float *rgba, double depth, unsigned stencil) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->clear(pipe, buffers, rgba, depth, stencil); } static void identity_flush(struct pipe_context *_pipe, unsigned flags, struct pipe_fence_handle **fence) { struct identity_context *id_pipe = identity_context(_pipe); struct pipe_context *pipe = id_pipe->pipe; pipe->flush(pipe, flags, fence); } static unsigned int identity_is_resource_referenced(struct pipe_context *_pipe, struct pipe_resource *_resource, unsigned face, unsigned level) { struct identity_context *id_pipe = identity_context(_pipe); struct identity_resource *id_resource = identity_resource(_resource); struct pipe_context *pipe = id_pipe->pipe; struct pipe_resource *texture = id_resource->resource; return pipe->is_resource_referenced(pipe, texture, face, level); } static struct pipe_sampler_view * identity_create_sampler_view(struct pipe_context *pipe, struct pipe_resource *texture, const struct pipe_sampler_view *templ) { struct identity_context *id_pipe = identity_context(pipe); struct identity_resource *id_resource = identity_resource(texture); struct pipe_context *pipe_unwrapped = id_pipe->pipe; struct pipe_resource *texture_unwrapped = id_resource->resource; 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_resource_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_resource_reference(&view->texture, NULL); FREE(view); } static struct pipe_transfer * identity_context_get_transfer(struct pipe_context *_context, struct pipe_resource *_resource, struct pipe_subresource sr, unsigned usage, const struct pipe_box *box) { struct identity_context *id_context = identity_context(_context); struct identity_resource *id_resource = identity_resource(_resource); struct pipe_context *context = id_context->pipe; struct pipe_resource *texture = id_resource->resource; struct pipe_transfer *result; result = context->get_transfer(context, texture, sr, usage, box); if (result) return identity_transfer_create(id_context, id_resource, result); return NULL; } static void identity_context_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_flush_region(struct pipe_context *_context, struct pipe_transfer *_transfer, const struct pipe_box *box) { 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_flush_region(context, transfer, box); } 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); } static void identity_context_transfer_inline_write(struct pipe_context *_context, struct pipe_resource *_resource, struct pipe_subresource sr, unsigned usage, const struct pipe_box *box, const void *data, unsigned stride, unsigned slice_stride) { struct identity_context *id_context = identity_context(_context); struct identity_resource *id_resource = identity_resource(_resource); struct pipe_context *context = id_context->pipe; struct pipe_resource *texture = id_resource->resource; context->transfer_inline_write(context, texture, sr, usage, box, data, stride, slice_stride); } struct pipe_context * identity_context_create(struct pipe_screen *_screen, struct pipe_context *pipe) { struct identity_context *id_pipe; (void)identity_screen(_screen); id_pipe = CALLOC_STRUCT(identity_context); if (!id_pipe) { return NULL; } id_pipe->base.winsys = NULL; id_pipe->base.screen = _screen; id_pipe->base.priv = pipe->priv; /* expose wrapped data */ id_pipe->base.draw = NULL; id_pipe->base.destroy = identity_destroy; id_pipe->base.draw_arrays = identity_draw_arrays; id_pipe->base.draw_elements = identity_draw_elements; id_pipe->base.draw_range_elements = identity_draw_range_elements; id_pipe->base.create_query = identity_create_query; id_pipe->base.destroy_query = identity_destroy_query; id_pipe->base.begin_query = identity_begin_query; id_pipe->base.end_query = identity_end_query; id_pipe->base.get_query_result = identity_get_query_result; id_pipe->base.create_blend_state = identity_create_blend_state; id_pipe->base.bind_blend_state = identity_bind_blend_state; id_pipe->base.delete_blend_state = identity_delete_blend_state; id_pipe->base.create_sampler_state = identity_create_sampler_state; id_pipe->base.bind_fragment_sampler_states = identity_bind_fragment_sampler_states; id_pipe->base.bind_vertex_sampler_states = identity_bind_vertex_sampler_states; id_pipe->base.delete_sampler_state = identity_delete_sampler_state; id_pipe->base.create_rasterizer_state = identity_create_rasterizer_state; id_pipe->base.bind_rasterizer_state = identity_bind_rasterizer_state; id_pipe->base.delete_rasterizer_state = identity_delete_rasterizer_state; id_pipe->base.create_depth_stencil_alpha_state = identity_create_depth_stencil_alpha_state; id_pipe->base.bind_depth_stencil_alpha_state = identity_bind_depth_stencil_alpha_state; id_pipe->base.delete_depth_stencil_alpha_state = identity_delete_depth_stencil_alpha_state; id_pipe->base.create_fs_state = identity_create_fs_state; id_pipe->base.bind_fs_state = identity_bind_fs_state; id_pipe->base.delete_fs_state = identity_delete_fs_state; id_pipe->base.create_vs_state = identity_create_vs_state; id_pipe->base.bind_vs_state = identity_bind_vs_state; id_pipe->base.delete_vs_state = identity_delete_vs_state; id_pipe->base.create_vertex_elements_state = identity_create_vertex_elements_state; id_pipe->base.bind_vertex_elements_state = identity_bind_vertex_elements_state; id_pipe->base.delete_vertex_elements_state = identity_delete_vertex_elements_state; id_pipe->base.set_blend_color = identity_set_blend_color; id_pipe->base.set_stencil_ref = identity_set_stencil_ref; id_pipe->base.set_clip_state = identity_set_clip_state; id_pipe->base.set_constant_buffer = identity_set_constant_buffer; id_pipe->base.set_framebuffer_state = identity_set_framebuffer_state; id_pipe->base.set_polygon_stipple = identity_set_polygon_stipple; id_pipe->base.set_scissor_state = identity_set_scissor_state; id_pipe->base.set_viewport_state = identity_set_viewport_state; id_pipe->base.set_fragment_sampler_views = identity_set_fragment_sampler_views; id_pipe->base.set_vertex_sampler_views = identity_set_vertex_sampler_views; id_pipe->base.set_vertex_buffers = identity_set_vertex_buffers; id_pipe->base.surface_copy = identity_surface_copy; id_pipe->base.surface_fill = identity_surface_fill; id_pipe->base.clear = identity_clear; id_pipe->base.flush = identity_flush; id_pipe->base.is_resource_referenced = identity_is_resource_referenced; id_pipe->base.create_sampler_view = identity_create_sampler_view; id_pipe->base.sampler_view_destroy = identity_sampler_view_destroy; id_pipe->base.get_transfer = identity_context_get_transfer; id_pipe->base.transfer_destroy = identity_context_transfer_destroy; id_pipe->base.transfer_map = identity_context_transfer_map; id_pipe->base.transfer_unmap = identity_context_transfer_unmap; id_pipe->base.transfer_flush_region = identity_context_transfer_flush_region; id_pipe->base.transfer_inline_write = identity_context_transfer_inline_write; id_pipe->pipe = pipe; return &id_pipe->base; }