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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 
noop_draw_vbo(struct pipe_context * ctx,const struct pipe_draw_info * info)33 static void noop_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info)
34 {
35 }
36 
noop_launch_grid(struct pipe_context * ctx,const struct pipe_grid_info * info)37 static void noop_launch_grid(struct pipe_context *ctx,
38                              const struct pipe_grid_info *info)
39 {
40 }
41 
noop_set_blend_color(struct pipe_context * ctx,const struct pipe_blend_color * state)42 static void noop_set_blend_color(struct pipe_context *ctx,
43                                  const struct pipe_blend_color *state)
44 {
45 }
46 
noop_create_blend_state(struct pipe_context * ctx,const struct pipe_blend_state * state)47 static void *noop_create_blend_state(struct pipe_context *ctx,
48                                      const struct pipe_blend_state *state)
49 {
50    return MALLOC(1);
51 }
52 
noop_create_dsa_state(struct pipe_context * ctx,const struct pipe_depth_stencil_alpha_state * state)53 static 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 
noop_create_rs_state(struct pipe_context * ctx,const struct pipe_rasterizer_state * state)59 static void *noop_create_rs_state(struct pipe_context *ctx,
60                                   const struct pipe_rasterizer_state *state)
61 {
62    return MALLOC(1);
63 }
64 
noop_create_sampler_state(struct pipe_context * ctx,const struct pipe_sampler_state * state)65 static void *noop_create_sampler_state(struct pipe_context *ctx,
66                                        const struct pipe_sampler_state *state)
67 {
68    return MALLOC(1);
69 }
70 
noop_create_sampler_view(struct pipe_context * ctx,struct pipe_resource * texture,const struct pipe_sampler_view * state)71 static 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 
80    /* initialize base object */
81    *sampler_view = *state;
82    sampler_view->texture = NULL;
83    pipe_resource_reference(&sampler_view->texture, texture);
84    pipe_reference_init(&sampler_view->reference, 1);
85    sampler_view->context = ctx;
86    return sampler_view;
87 }
88 
noop_create_surface(struct pipe_context * ctx,struct pipe_resource * texture,const struct pipe_surface * surf_tmpl)89 static struct pipe_surface *noop_create_surface(struct pipe_context *ctx,
90                                                 struct pipe_resource *texture,
91                                                 const struct pipe_surface *surf_tmpl)
92 {
93    struct pipe_surface *surface = CALLOC_STRUCT(pipe_surface);
94 
95    if (!surface)
96       return NULL;
97    pipe_reference_init(&surface->reference, 1);
98    pipe_resource_reference(&surface->texture, texture);
99    surface->context = ctx;
100    surface->format = surf_tmpl->format;
101    surface->width = texture->width0;
102    surface->height = texture->height0;
103    surface->texture = texture;
104    surface->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
105    surface->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
106    surface->u.tex.level = surf_tmpl->u.tex.level;
107 
108    return surface;
109 }
110 
noop_set_sampler_views(struct pipe_context * ctx,enum pipe_shader_type shader,unsigned start,unsigned count,struct pipe_sampler_view ** views)111 static void noop_set_sampler_views(struct pipe_context *ctx,
112                                    enum pipe_shader_type shader,
113                                    unsigned start, unsigned count,
114                                    struct pipe_sampler_view **views)
115 {
116 }
117 
noop_bind_sampler_states(struct pipe_context * ctx,enum pipe_shader_type shader,unsigned start,unsigned count,void ** states)118 static void noop_bind_sampler_states(struct pipe_context *ctx,
119                                      enum pipe_shader_type shader,
120                                      unsigned start, unsigned count,
121                                      void **states)
122 {
123 }
124 
noop_set_clip_state(struct pipe_context * ctx,const struct pipe_clip_state * state)125 static void noop_set_clip_state(struct pipe_context *ctx,
126                                 const struct pipe_clip_state *state)
127 {
128 }
129 
noop_set_polygon_stipple(struct pipe_context * ctx,const struct pipe_poly_stipple * state)130 static void noop_set_polygon_stipple(struct pipe_context *ctx,
131                                      const struct pipe_poly_stipple *state)
132 {
133 }
134 
noop_set_sample_mask(struct pipe_context * pipe,unsigned sample_mask)135 static void noop_set_sample_mask(struct pipe_context *pipe, unsigned sample_mask)
136 {
137 }
138 
noop_set_scissor_states(struct pipe_context * ctx,unsigned start_slot,unsigned num_scissors,const struct pipe_scissor_state * state)139 static void noop_set_scissor_states(struct pipe_context *ctx,
140                                     unsigned start_slot,
141                                     unsigned num_scissors,
142                                     const struct pipe_scissor_state *state)
143 {
144 }
145 
noop_set_stencil_ref(struct pipe_context * ctx,const struct pipe_stencil_ref * state)146 static void noop_set_stencil_ref(struct pipe_context *ctx,
147                                  const struct pipe_stencil_ref *state)
148 {
149 }
150 
noop_set_viewport_states(struct pipe_context * ctx,unsigned start_slot,unsigned num_viewports,const struct pipe_viewport_state * state)151 static void noop_set_viewport_states(struct pipe_context *ctx,
152                                      unsigned start_slot,
153                                      unsigned num_viewports,
154                                      const struct pipe_viewport_state *state)
155 {
156 }
157 
noop_set_framebuffer_state(struct pipe_context * ctx,const struct pipe_framebuffer_state * state)158 static void noop_set_framebuffer_state(struct pipe_context *ctx,
159                                        const struct pipe_framebuffer_state *state)
160 {
161 }
162 
noop_set_constant_buffer(struct pipe_context * ctx,enum pipe_shader_type shader,uint index,const struct pipe_constant_buffer * cb)163 static void noop_set_constant_buffer(struct pipe_context *ctx,
164                                      enum pipe_shader_type shader, uint index,
165                                      const struct pipe_constant_buffer *cb)
166 {
167 }
168 
169 
noop_sampler_view_destroy(struct pipe_context * ctx,struct pipe_sampler_view * state)170 static void noop_sampler_view_destroy(struct pipe_context *ctx,
171                                       struct pipe_sampler_view *state)
172 {
173    pipe_resource_reference(&state->texture, NULL);
174    FREE(state);
175 }
176 
177 
noop_surface_destroy(struct pipe_context * ctx,struct pipe_surface * surface)178 static void noop_surface_destroy(struct pipe_context *ctx,
179                                  struct pipe_surface *surface)
180 {
181    pipe_resource_reference(&surface->texture, NULL);
182    FREE(surface);
183 }
184 
noop_bind_state(struct pipe_context * ctx,void * state)185 static void noop_bind_state(struct pipe_context *ctx, void *state)
186 {
187 }
188 
noop_delete_state(struct pipe_context * ctx,void * state)189 static void noop_delete_state(struct pipe_context *ctx, void *state)
190 {
191    FREE(state);
192 }
193 
noop_set_vertex_buffers(struct pipe_context * ctx,unsigned start_slot,unsigned count,const struct pipe_vertex_buffer * buffers)194 static void noop_set_vertex_buffers(struct pipe_context *ctx,
195                                     unsigned start_slot, unsigned count,
196                                     const struct pipe_vertex_buffer *buffers)
197 {
198 }
199 
noop_create_vertex_elements(struct pipe_context * ctx,unsigned count,const struct pipe_vertex_element * state)200 static void *noop_create_vertex_elements(struct pipe_context *ctx,
201                                          unsigned count,
202                                          const struct pipe_vertex_element *state)
203 {
204    return MALLOC(1);
205 }
206 
noop_create_shader_state(struct pipe_context * ctx,const struct pipe_shader_state * state)207 static void *noop_create_shader_state(struct pipe_context *ctx,
208                                       const struct pipe_shader_state *state)
209 {
210    return MALLOC(1);
211 }
212 
noop_create_compute_state(struct pipe_context * ctx,const struct pipe_compute_state * state)213 static void *noop_create_compute_state(struct pipe_context *ctx,
214                                        const struct pipe_compute_state *state)
215 {
216    return MALLOC(1);
217 }
218 
noop_create_stream_output_target(struct pipe_context * ctx,struct pipe_resource * res,unsigned buffer_offset,unsigned buffer_size)219 static struct pipe_stream_output_target *noop_create_stream_output_target(
220       struct pipe_context *ctx,
221       struct pipe_resource *res,
222       unsigned buffer_offset,
223       unsigned buffer_size)
224 {
225    struct pipe_stream_output_target *t = CALLOC_STRUCT(pipe_stream_output_target);
226    if (!t)
227       return NULL;
228 
229    pipe_reference_init(&t->reference, 1);
230    pipe_resource_reference(&t->buffer, res);
231    t->buffer_offset = buffer_offset;
232    t->buffer_size = buffer_size;
233    return t;
234 }
235 
noop_stream_output_target_destroy(struct pipe_context * ctx,struct pipe_stream_output_target * t)236 static void noop_stream_output_target_destroy(struct pipe_context *ctx,
237                                               struct pipe_stream_output_target *t)
238 {
239    pipe_resource_reference(&t->buffer, NULL);
240    FREE(t);
241 }
242 
noop_set_stream_output_targets(struct pipe_context * ctx,unsigned num_targets,struct pipe_stream_output_target ** targets,const unsigned * offsets)243 static void noop_set_stream_output_targets(struct pipe_context *ctx,
244                                            unsigned num_targets,
245                                            struct pipe_stream_output_target **targets,
246                                            const unsigned *offsets)
247 {
248 }
249 
250 void noop_init_state_functions(struct pipe_context *ctx);
251 
noop_init_state_functions(struct pipe_context * ctx)252 void noop_init_state_functions(struct pipe_context *ctx)
253 {
254    ctx->create_blend_state = noop_create_blend_state;
255    ctx->create_depth_stencil_alpha_state = noop_create_dsa_state;
256    ctx->create_fs_state = noop_create_shader_state;
257    ctx->create_rasterizer_state = noop_create_rs_state;
258    ctx->create_sampler_state = noop_create_sampler_state;
259    ctx->create_sampler_view = noop_create_sampler_view;
260    ctx->create_surface = noop_create_surface;
261    ctx->create_vertex_elements_state = noop_create_vertex_elements;
262    ctx->create_compute_state = noop_create_compute_state;
263    ctx->create_tcs_state = noop_create_shader_state;
264    ctx->create_tes_state = noop_create_shader_state;
265    ctx->create_gs_state = noop_create_shader_state;
266    ctx->create_vs_state = noop_create_shader_state;
267    ctx->bind_blend_state = noop_bind_state;
268    ctx->bind_depth_stencil_alpha_state = noop_bind_state;
269    ctx->bind_sampler_states = noop_bind_sampler_states;
270    ctx->bind_fs_state = noop_bind_state;
271    ctx->bind_rasterizer_state = noop_bind_state;
272    ctx->bind_vertex_elements_state = noop_bind_state;
273    ctx->bind_compute_state = noop_bind_state;
274    ctx->bind_tcs_state = noop_bind_state;
275    ctx->bind_tes_state = noop_bind_state;
276    ctx->bind_gs_state = noop_bind_state;
277    ctx->bind_vs_state = noop_bind_state;
278    ctx->delete_blend_state = noop_delete_state;
279    ctx->delete_depth_stencil_alpha_state = noop_delete_state;
280    ctx->delete_fs_state = noop_delete_state;
281    ctx->delete_rasterizer_state = noop_delete_state;
282    ctx->delete_sampler_state = noop_delete_state;
283    ctx->delete_vertex_elements_state = noop_delete_state;
284    ctx->delete_compute_state = noop_delete_state;
285    ctx->delete_tcs_state = noop_delete_state;
286    ctx->delete_tes_state = noop_delete_state;
287    ctx->delete_gs_state = noop_delete_state;
288    ctx->delete_vs_state = noop_delete_state;
289    ctx->set_blend_color = noop_set_blend_color;
290    ctx->set_clip_state = noop_set_clip_state;
291    ctx->set_constant_buffer = noop_set_constant_buffer;
292    ctx->set_sampler_views = noop_set_sampler_views;
293    ctx->set_framebuffer_state = noop_set_framebuffer_state;
294    ctx->set_polygon_stipple = noop_set_polygon_stipple;
295    ctx->set_sample_mask = noop_set_sample_mask;
296    ctx->set_scissor_states = noop_set_scissor_states;
297    ctx->set_stencil_ref = noop_set_stencil_ref;
298    ctx->set_vertex_buffers = noop_set_vertex_buffers;
299    ctx->set_viewport_states = noop_set_viewport_states;
300    ctx->sampler_view_destroy = noop_sampler_view_destroy;
301    ctx->surface_destroy = noop_surface_destroy;
302    ctx->draw_vbo = noop_draw_vbo;
303    ctx->launch_grid = noop_launch_grid;
304    ctx->create_stream_output_target = noop_create_stream_output_target;
305    ctx->stream_output_target_destroy = noop_stream_output_target_destroy;
306    ctx->set_stream_output_targets = noop_set_stream_output_targets;
307 }
308