src/gallium/drivers/noop/noop_state.c

   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
  33 static void noop_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info)
  34 {
  35 }
  36
  37 static void noop_set_blend_color(struct pipe_context *ctx,
  38                                         const struct pipe_blend_color *state)
  39 {
  40 }
  41
  42 static void *noop_create_blend_state(struct pipe_context *ctx,
  43                                         const struct pipe_blend_state *state)
  44 {
  45         struct pipe_blend_state *nstate = CALLOC_STRUCT(pipe_blend_state);
  46
  47         if (!nstate) {
  48                 return NULL;
  49         }
  50         *nstate = *state;
  51         return nstate;
  52 }
  53
  54 static void *noop_create_dsa_state(struct pipe_context *ctx,
  55                                    const struct pipe_depth_stencil_alpha_state *state)
  56 {
  57         struct pipe_depth_stencil_alpha_state *nstate = CALLOC_STRUCT(pipe_depth_stencil_alpha_state);
  58
  59         if (!nstate) {
  60                 return NULL;
  61         }
  62         *nstate = *state;
  63         return nstate;
  64 }
  65
  66 static void *noop_create_rs_state(struct pipe_context *ctx,
  67                                         const struct pipe_rasterizer_state *state)
  68 {
  69         struct pipe_rasterizer_state *nstate = CALLOC_STRUCT(pipe_rasterizer_state);
  70
  71         if (!nstate) {
  72                 return NULL;
  73         }
  74         *nstate = *state;
  75         return nstate;
  76 }
  77
  78 static void *noop_create_sampler_state(struct pipe_context *ctx,
  79                                         const struct pipe_sampler_state *state)
  80 {
  81         struct pipe_sampler_state *nstate = CALLOC_STRUCT(pipe_sampler_state);
  82
  83         if (!nstate) {
  84                 return NULL;
  85         }
  86         *nstate = *state;
  87         return nstate;
  88 }
  89
  90 static struct pipe_sampler_view *noop_create_sampler_view(struct pipe_context *ctx,
  91                                                         struct pipe_resource *texture,
  92                                                         const struct pipe_sampler_view *state)
  93 {
  94         struct pipe_sampler_view *sampler_view = CALLOC_STRUCT(pipe_sampler_view);
  95
  96         if (!sampler_view)
  97                 return NULL;
  98         /* initialize base object */
  99         pipe_resource_reference(&sampler_view->texture, texture);
 100         pipe_reference_init(&sampler_view->reference, 1);
 101         sampler_view->context = ctx;
 102         return sampler_view;
 103 }
 104
 105 static struct pipe_surface *noop_create_surface(struct pipe_context *ctx,
 106                                                 struct pipe_resource *texture,
 107                                                 const struct pipe_surface *surf_tmpl)
 108 {
 109         struct pipe_surface *surface = CALLOC_STRUCT(pipe_surface);
 110
 111         if (!surface)
 112                 return NULL;
 113         pipe_reference_init(&surface->reference, 1);
 114         pipe_resource_reference(&surface->texture, texture);
 115         surface->context = ctx;
 116         surface->format = surf_tmpl->format;
 117         surface->width = texture->width0;
 118         surface->height = texture->height0;
 119         surface->texture = texture;
 120         surface->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 121         surface->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 122         surface->u.tex.level = surf_tmpl->u.tex.level;
 123
 124         return surface;
 125 }
 126
 127 static void noop_set_sampler_views(struct pipe_context *ctx, unsigned shader,
 128                                    unsigned start, unsigned count,
 129                                    struct pipe_sampler_view **views)
 130 {
 131 }
 132
 133 static void noop_bind_sampler_states(struct pipe_context *ctx, unsigned shader,
 134                                      unsigned start, unsigned count,
 135                                      void **states)
 136 {
 137 }
 138
 139 static void noop_set_clip_state(struct pipe_context *ctx,
 140                                 const struct pipe_clip_state *state)
 141 {
 142 }
 143
 144 static void noop_set_polygon_stipple(struct pipe_context *ctx,
 145                                          const struct pipe_poly_stipple *state)
 146 {
 147 }
 148
 149 static void noop_set_sample_mask(struct pipe_context *pipe, unsigned sample_mask)
 150 {
 151 }
 152
 153 static void noop_set_scissor_states(struct pipe_context *ctx,
 154                                     unsigned start_slot,
 155                                     unsigned num_scissors,
 156                                     const struct pipe_scissor_state *state)
 157 {
 158 }
 159
 160 static void noop_set_stencil_ref(struct pipe_context *ctx,
 161                                 const struct pipe_stencil_ref *state)
 162 {
 163 }
 164
 165 static void noop_set_viewport_states(struct pipe_context *ctx,
 166                                      unsigned start_slot,
 167                                      unsigned num_viewports,
 168                                      const struct pipe_viewport_state *state)
 169 {
 170 }
 171
 172 static void noop_set_framebuffer_state(struct pipe_context *ctx,
 173                                         const struct pipe_framebuffer_state *state)
 174 {
 175 }
 176
 177 static void noop_set_constant_buffer(struct pipe_context *ctx,
 178                                         uint shader, uint index,
 179                                         struct pipe_constant_buffer *cb)
 180 {
 181 }
 182
 183
 184 static void noop_sampler_view_destroy(struct pipe_context *ctx,
 185                                 struct pipe_sampler_view *state)
 186 {
 187         pipe_resource_reference(&state->texture, NULL);
 188         FREE(state);
 189 }
 190
 191
 192 static void noop_surface_destroy(struct pipe_context *ctx,
 193                                  struct pipe_surface *surface)
 194 {
 195         pipe_resource_reference(&surface->texture, NULL);
 196         FREE(surface);
 197 }
 198
 199 static void noop_bind_state(struct pipe_context *ctx, void *state)
 200 {
 201 }
 202
 203 static void noop_delete_state(struct pipe_context *ctx, void *state)
 204 {
 205         FREE(state);
 206 }
 207
 208 static void noop_delete_vertex_element(struct pipe_context *ctx, void *state)
 209 {
 210         FREE(state);
 211 }
 212
 213
 214 static void noop_set_index_buffer(struct pipe_context *ctx,
 215                                         const struct pipe_index_buffer *ib)
 216 {
 217 }
 218
 219 static void noop_set_vertex_buffers(struct pipe_context *ctx,
 220                                     unsigned start_slot, unsigned count,
 221                                     const struct pipe_vertex_buffer *buffers)
 222 {
 223 }
 224
 225 static void *noop_create_vertex_elements(struct pipe_context *ctx,
 226                                         unsigned count,
 227                                         const struct pipe_vertex_element *state)
 228 {
 229         struct pipe_vertex_element *nstate = CALLOC_STRUCT(pipe_vertex_element);
 230
 231         if (!nstate) {
 232                 return NULL;
 233         }
 234         *nstate = *state;
 235         return nstate;
 236 }
 237
 238 static void *noop_create_shader_state(struct pipe_context *ctx,
 239                                         const struct pipe_shader_state *state)
 240 {
 241         struct pipe_shader_state *nstate = CALLOC_STRUCT(pipe_shader_state);
 242
 243         if (!nstate) {
 244                 return NULL;
 245         }
 246         *nstate = *state;
 247         return nstate;
 248 }
 249
 250 static struct pipe_stream_output_target *noop_create_stream_output_target(
 251       struct pipe_context *ctx,
 252       struct pipe_resource *res,
 253       unsigned buffer_offset,
 254       unsigned buffer_size)
 255 {
 256    struct pipe_stream_output_target *t = CALLOC_STRUCT(pipe_stream_output_target);
 257    if (!t)
 258       return NULL;
 259
 260    pipe_reference_init(&t->reference, 1);
 261    pipe_resource_reference(&t->buffer, res);
 262    t->buffer_offset = buffer_offset;
 263    t->buffer_size = buffer_size;
 264    return t;
 265 }
 266
 267 static void noop_stream_output_target_destroy(struct pipe_context *ctx,
 268                                       struct pipe_stream_output_target *t)
 269 {
 270    pipe_resource_reference(&t->buffer, NULL);
 271    FREE(t);
 272 }
 273
 274 static void noop_set_stream_output_targets(struct pipe_context *ctx,
 275                            unsigned num_targets,
 276                            struct pipe_stream_output_target **targets,
 277                            const unsigned *offsets)
 278 {
 279 }
 280
 281 void noop_init_state_functions(struct pipe_context *ctx);
 282
 283 void noop_init_state_functions(struct pipe_context *ctx)
 284 {
 285         ctx->create_blend_state = noop_create_blend_state;
 286         ctx->create_depth_stencil_alpha_state = noop_create_dsa_state;
 287         ctx->create_fs_state = noop_create_shader_state;
 288         ctx->create_rasterizer_state = noop_create_rs_state;
 289         ctx->create_sampler_state = noop_create_sampler_state;
 290         ctx->create_sampler_view = noop_create_sampler_view;
 291         ctx->create_surface = noop_create_surface;
 292         ctx->create_vertex_elements_state = noop_create_vertex_elements;
 293         ctx->create_vs_state = noop_create_shader_state;
 294         ctx->bind_blend_state = noop_bind_state;
 295         ctx->bind_depth_stencil_alpha_state = noop_bind_state;
 296         ctx->bind_sampler_states = noop_bind_sampler_states;
 297         ctx->bind_fs_state = noop_bind_state;
 298         ctx->bind_rasterizer_state = noop_bind_state;
 299         ctx->bind_vertex_elements_state = noop_bind_state;
 300         ctx->bind_vs_state = noop_bind_state;
 301         ctx->delete_blend_state = noop_delete_state;
 302         ctx->delete_depth_stencil_alpha_state = noop_delete_state;
 303         ctx->delete_fs_state = noop_delete_state;
 304         ctx->delete_rasterizer_state = noop_delete_state;
 305         ctx->delete_sampler_state = noop_delete_state;
 306         ctx->delete_vertex_elements_state = noop_delete_vertex_element;
 307         ctx->delete_vs_state = noop_delete_state;
 308         ctx->set_blend_color = noop_set_blend_color;
 309         ctx->set_clip_state = noop_set_clip_state;
 310         ctx->set_constant_buffer = noop_set_constant_buffer;
 311         ctx->set_sampler_views = noop_set_sampler_views;
 312         ctx->set_framebuffer_state = noop_set_framebuffer_state;
 313         ctx->set_polygon_stipple = noop_set_polygon_stipple;
 314         ctx->set_sample_mask = noop_set_sample_mask;
 315         ctx->set_scissor_states = noop_set_scissor_states;
 316         ctx->set_stencil_ref = noop_set_stencil_ref;
 317         ctx->set_vertex_buffers = noop_set_vertex_buffers;
 318         ctx->set_index_buffer = noop_set_index_buffer;
 319         ctx->set_viewport_states = noop_set_viewport_states;
 320         ctx->sampler_view_destroy = noop_sampler_view_destroy;
 321         ctx->surface_destroy = noop_surface_destroy;
 322         ctx->draw_vbo = noop_draw_vbo;
 323         ctx->create_stream_output_target = noop_create_stream_output_target;
 324         ctx->stream_output_target_destroy = noop_stream_output_target_destroy;
 325         ctx->set_stream_output_targets = noop_set_stream_output_targets;
 326 }