1/*
2 * Copyright 2010 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23#include <stdio.h>
24#include <errno.h>
25#include "pipe/p_defines.h"
26#include "pipe/p_state.h"
27#include "pipe/p_context.h"
28#include "pipe/p_screen.h"
29#include "util/u_memory.h"
30#include "util/u_inlines.h"
31#include "util/u_transfer.h"
32
33static void noop_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info)
34{
35}
36
37static void noop_launch_grid(struct pipe_context *ctx,
38                             const struct pipe_grid_info *info)
39{
40}
41
42static void noop_set_blend_color(struct pipe_context *ctx,
43                                 const struct pipe_blend_color *state)
44{
45}
46
47static void *noop_create_blend_state(struct pipe_context *ctx,
48                                     const struct pipe_blend_state *state)
49{
50   return MALLOC(1);
51}
52
53static void *noop_create_dsa_state(struct pipe_context *ctx,
54                                   const struct pipe_depth_stencil_alpha_state *state)
55{
56   return MALLOC(1);
57}
58
59static void *noop_create_rs_state(struct pipe_context *ctx,
60                                  const struct pipe_rasterizer_state *state)
61{
62   return MALLOC(1);
63}
64
65static void *noop_create_sampler_state(struct pipe_context *ctx,
66                                       const struct pipe_sampler_state *state)
67{
68   return MALLOC(1);
69}
70
71static struct pipe_sampler_view *noop_create_sampler_view(struct pipe_context *ctx,
72                                                          struct pipe_resource *texture,
73                                                          const struct pipe_sampler_view *state)
74{
75   struct pipe_sampler_view *sampler_view = CALLOC_STRUCT(pipe_sampler_view);
76
77   if (!sampler_view)
78      return NULL;
79   /* initialize base object */
80   pipe_resource_reference(&sampler_view->texture, texture);
81   pipe_reference_init(&sampler_view->reference, 1);
82   sampler_view->context = ctx;
83   return sampler_view;
84}
85
86static struct pipe_surface *noop_create_surface(struct pipe_context *ctx,
87                                                struct pipe_resource *texture,
88                                                const struct pipe_surface *surf_tmpl)
89{
90   struct pipe_surface *surface = CALLOC_STRUCT(pipe_surface);
91
92   if (!surface)
93      return NULL;
94   pipe_reference_init(&surface->reference, 1);
95   pipe_resource_reference(&surface->texture, texture);
96   surface->context = ctx;
97   surface->format = surf_tmpl->format;
98   surface->width = texture->width0;
99   surface->height = texture->height0;
100   surface->texture = texture;
101   surface->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
102   surface->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
103   surface->u.tex.level = surf_tmpl->u.tex.level;
104
105   return surface;
106}
107
108static void noop_set_sampler_views(struct pipe_context *ctx,
109                                   enum pipe_shader_type shader,
110                                   unsigned start, unsigned count,
111                                   struct pipe_sampler_view **views)
112{
113}
114
115static void noop_bind_sampler_states(struct pipe_context *ctx,
116                                     enum pipe_shader_type shader,
117                                     unsigned start, unsigned count,
118                                     void **states)
119{
120}
121
122static void noop_set_clip_state(struct pipe_context *ctx,
123                                const struct pipe_clip_state *state)
124{
125}
126
127static void noop_set_polygon_stipple(struct pipe_context *ctx,
128                                     const struct pipe_poly_stipple *state)
129{
130}
131
132static void noop_set_sample_mask(struct pipe_context *pipe, unsigned sample_mask)
133{
134}
135
136static void noop_set_scissor_states(struct pipe_context *ctx,
137                                    unsigned start_slot,
138                                    unsigned num_scissors,
139                                    const struct pipe_scissor_state *state)
140{
141}
142
143static void noop_set_stencil_ref(struct pipe_context *ctx,
144                                 const struct pipe_stencil_ref *state)
145{
146}
147
148static void noop_set_viewport_states(struct pipe_context *ctx,
149                                     unsigned start_slot,
150                                     unsigned num_viewports,
151                                     const struct pipe_viewport_state *state)
152{
153}
154
155static void noop_set_framebuffer_state(struct pipe_context *ctx,
156                                       const struct pipe_framebuffer_state *state)
157{
158}
159
160static void noop_set_constant_buffer(struct pipe_context *ctx,
161                                     uint shader, uint index,
162                                     const struct pipe_constant_buffer *cb)
163{
164}
165
166
167static void noop_sampler_view_destroy(struct pipe_context *ctx,
168                                      struct pipe_sampler_view *state)
169{
170   pipe_resource_reference(&state->texture, NULL);
171   FREE(state);
172}
173
174
175static void noop_surface_destroy(struct pipe_context *ctx,
176                                 struct pipe_surface *surface)
177{
178   pipe_resource_reference(&surface->texture, NULL);
179   FREE(surface);
180}
181
182static void noop_bind_state(struct pipe_context *ctx, void *state)
183{
184}
185
186static void noop_delete_state(struct pipe_context *ctx, void *state)
187{
188   FREE(state);
189}
190
191static void noop_set_index_buffer(struct pipe_context *ctx,
192                                  const struct pipe_index_buffer *ib)
193{
194}
195
196static void noop_set_vertex_buffers(struct pipe_context *ctx,
197                                    unsigned start_slot, unsigned count,
198                                    const struct pipe_vertex_buffer *buffers)
199{
200}
201
202static void *noop_create_vertex_elements(struct pipe_context *ctx,
203                                         unsigned count,
204                                         const struct pipe_vertex_element *state)
205{
206   return MALLOC(1);
207}
208
209static void *noop_create_shader_state(struct pipe_context *ctx,
210                                      const struct pipe_shader_state *state)
211{
212   return MALLOC(1);
213}
214
215static void *noop_create_compute_state(struct pipe_context *ctx,
216                                       const struct pipe_compute_state *state)
217{
218   return MALLOC(1);
219}
220
221static struct pipe_stream_output_target *noop_create_stream_output_target(
222      struct pipe_context *ctx,
223      struct pipe_resource *res,
224      unsigned buffer_offset,
225      unsigned buffer_size)
226{
227   struct pipe_stream_output_target *t = CALLOC_STRUCT(pipe_stream_output_target);
228   if (!t)
229      return NULL;
230
231   pipe_reference_init(&t->reference, 1);
232   pipe_resource_reference(&t->buffer, res);
233   t->buffer_offset = buffer_offset;
234   t->buffer_size = buffer_size;
235   return t;
236}
237
238static void noop_stream_output_target_destroy(struct pipe_context *ctx,
239                                              struct pipe_stream_output_target *t)
240{
241   pipe_resource_reference(&t->buffer, NULL);
242   FREE(t);
243}
244
245static void noop_set_stream_output_targets(struct pipe_context *ctx,
246                                           unsigned num_targets,
247                                           struct pipe_stream_output_target **targets,
248                                           const unsigned *offsets)
249{
250}
251
252void noop_init_state_functions(struct pipe_context *ctx);
253
254void noop_init_state_functions(struct pipe_context *ctx)
255{
256   ctx->create_blend_state = noop_create_blend_state;
257   ctx->create_depth_stencil_alpha_state = noop_create_dsa_state;
258   ctx->create_fs_state = noop_create_shader_state;
259   ctx->create_rasterizer_state = noop_create_rs_state;
260   ctx->create_sampler_state = noop_create_sampler_state;
261   ctx->create_sampler_view = noop_create_sampler_view;
262   ctx->create_surface = noop_create_surface;
263   ctx->create_vertex_elements_state = noop_create_vertex_elements;
264   ctx->create_compute_state = noop_create_compute_state;
265   ctx->create_tcs_state = noop_create_shader_state;
266   ctx->create_tes_state = noop_create_shader_state;
267   ctx->create_gs_state = noop_create_shader_state;
268   ctx->create_vs_state = noop_create_shader_state;
269   ctx->bind_blend_state = noop_bind_state;
270   ctx->bind_depth_stencil_alpha_state = noop_bind_state;
271   ctx->bind_sampler_states = noop_bind_sampler_states;
272   ctx->bind_fs_state = noop_bind_state;
273   ctx->bind_rasterizer_state = noop_bind_state;
274   ctx->bind_vertex_elements_state = noop_bind_state;
275   ctx->bind_compute_state = noop_bind_state;
276   ctx->bind_tcs_state = noop_bind_state;
277   ctx->bind_tes_state = noop_bind_state;
278   ctx->bind_gs_state = noop_bind_state;
279   ctx->bind_vs_state = noop_bind_state;
280   ctx->delete_blend_state = noop_delete_state;
281   ctx->delete_depth_stencil_alpha_state = noop_delete_state;
282   ctx->delete_fs_state = noop_delete_state;
283   ctx->delete_rasterizer_state = noop_delete_state;
284   ctx->delete_sampler_state = noop_delete_state;
285   ctx->delete_vertex_elements_state = noop_delete_state;
286   ctx->delete_compute_state = noop_delete_state;
287   ctx->delete_tcs_state = noop_delete_state;
288   ctx->delete_tes_state = noop_delete_state;
289   ctx->delete_gs_state = noop_delete_state;
290   ctx->delete_vs_state = noop_delete_state;
291   ctx->set_blend_color = noop_set_blend_color;
292   ctx->set_clip_state = noop_set_clip_state;
293   ctx->set_constant_buffer = noop_set_constant_buffer;
294   ctx->set_sampler_views = noop_set_sampler_views;
295   ctx->set_framebuffer_state = noop_set_framebuffer_state;
296   ctx->set_polygon_stipple = noop_set_polygon_stipple;
297   ctx->set_sample_mask = noop_set_sample_mask;
298   ctx->set_scissor_states = noop_set_scissor_states;
299   ctx->set_stencil_ref = noop_set_stencil_ref;
300   ctx->set_vertex_buffers = noop_set_vertex_buffers;
301   ctx->set_index_buffer = noop_set_index_buffer;
302   ctx->set_viewport_states = noop_set_viewport_states;
303   ctx->sampler_view_destroy = noop_sampler_view_destroy;
304   ctx->surface_destroy = noop_surface_destroy;
305   ctx->draw_vbo = noop_draw_vbo;
306   ctx->launch_grid = noop_launch_grid;
307   ctx->create_stream_output_target = noop_create_stream_output_target;
308   ctx->stream_output_target_destroy = noop_stream_output_target_destroy;
309   ctx->set_stream_output_targets = noop_set_stream_output_targets;
310}
311