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