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 == NULL) {
  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 == NULL) {
  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 == NULL) {
  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 == NULL) {
  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 == NULL)
  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 == NULL)
 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->usage = surf_tmpl->usage;
 120         surface->texture = texture;
 121         surface->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 122         surface->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 123         surface->u.tex.level = surf_tmpl->u.tex.level;
 124
 125         return surface;
 126 }
 127 static void noop_set_vs_sampler_view(struct pipe_context *ctx, unsigned count,
 128                                         struct pipe_sampler_view **views)
 129 {
 130 }
 131
 132 static void noop_set_ps_sampler_view(struct pipe_context *ctx, unsigned count,
 133                                         struct pipe_sampler_view **views)
 134 {
 135 }
 136
 137 static void noop_bind_sampler(struct pipe_context *ctx, unsigned count, void **states)
 138 {
 139 }
 140
 141 static void noop_set_clip_state(struct pipe_context *ctx,
 142                                 const struct pipe_clip_state *state)
 143 {
 144 }
 145
 146 static void noop_set_polygon_stipple(struct pipe_context *ctx,
 147                                          const struct pipe_poly_stipple *state)
 148 {
 149 }
 150
 151 static void noop_set_sample_mask(struct pipe_context *pipe, unsigned sample_mask)
 152 {
 153 }
 154
 155 static void noop_set_scissor_state(struct pipe_context *ctx,
 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_state(struct pipe_context *ctx,
 166                                         const struct pipe_viewport_state *state)
 167 {
 168 }
 169
 170 static void noop_set_framebuffer_state(struct pipe_context *ctx,
 171                                         const struct pipe_framebuffer_state *state)
 172 {
 173 }
 174
 175 static void noop_set_constant_buffer(struct pipe_context *ctx,
 176                                         uint shader, uint index,
 177                                         struct pipe_resource *buffer)
 178 {
 179 }
 180
 181
 182 static void noop_sampler_view_destroy(struct pipe_context *ctx,
 183                                 struct pipe_sampler_view *state)
 184 {
 185         pipe_resource_reference(&state->texture, NULL);
 186         FREE(state);
 187 }
 188
 189
 190 static void noop_surface_destroy(struct pipe_context *ctx,
 191                                  struct pipe_surface *surface)
 192 {
 193         pipe_resource_reference(&surface->texture, NULL);
 194         FREE(surface);
 195 }
 196
 197 static void noop_bind_state(struct pipe_context *ctx, void *state)
 198 {
 199 }
 200
 201 static void noop_delete_state(struct pipe_context *ctx, void *state)
 202 {
 203         FREE(state);
 204 }
 205
 206 static void noop_delete_vertex_element(struct pipe_context *ctx, void *state)
 207 {
 208         FREE(state);
 209 }
 210
 211
 212 static void noop_set_index_buffer(struct pipe_context *ctx,
 213                                         const struct pipe_index_buffer *ib)
 214 {
 215 }
 216
 217 static void noop_set_vertex_buffers(struct pipe_context *ctx, unsigned count,
 218                                         const struct pipe_vertex_buffer *buffers)
 219 {
 220 }
 221
 222 static void *noop_create_vertex_elements(struct pipe_context *ctx,
 223                                         unsigned count,
 224                                         const struct pipe_vertex_element *state)
 225 {
 226         struct pipe_vertex_element *nstate = CALLOC_STRUCT(pipe_vertex_element);
 227
 228         if (nstate == NULL) {
 229                 return NULL;
 230         }
 231         *nstate = *state;
 232         return nstate;
 233 }
 234
 235 static void *noop_create_shader_state(struct pipe_context *ctx,
 236                                         const struct pipe_shader_state *state)
 237 {
 238         struct pipe_shader_state *nstate = CALLOC_STRUCT(pipe_shader_state);
 239
 240         if (nstate == NULL) {
 241                 return NULL;
 242         }
 243         *nstate = *state;
 244         return nstate;
 245 }
 246
 247 void noop_init_state_functions(struct pipe_context *ctx);
 248
 249 void noop_init_state_functions(struct pipe_context *ctx)
 250 {
 251         ctx->create_blend_state = noop_create_blend_state;
 252         ctx->create_depth_stencil_alpha_state = noop_create_dsa_state;
 253         ctx->create_fs_state = noop_create_shader_state;
 254         ctx->create_rasterizer_state = noop_create_rs_state;
 255         ctx->create_sampler_state = noop_create_sampler_state;
 256         ctx->create_sampler_view = noop_create_sampler_view;
 257         ctx->create_surface = noop_create_surface;
 258         ctx->create_vertex_elements_state = noop_create_vertex_elements;
 259         ctx->create_vs_state = noop_create_shader_state;
 260         ctx->bind_blend_state = noop_bind_state;
 261         ctx->bind_depth_stencil_alpha_state = noop_bind_state;
 262         ctx->bind_fragment_sampler_states = noop_bind_sampler;
 263         ctx->bind_fs_state = noop_bind_state;
 264         ctx->bind_rasterizer_state = noop_bind_state;
 265         ctx->bind_vertex_elements_state = noop_bind_state;
 266         ctx->bind_vertex_sampler_states = noop_bind_sampler;
 267         ctx->bind_vs_state = noop_bind_state;
 268         ctx->delete_blend_state = noop_delete_state;
 269         ctx->delete_depth_stencil_alpha_state = noop_delete_state;
 270         ctx->delete_fs_state = noop_delete_state;
 271         ctx->delete_rasterizer_state = noop_delete_state;
 272         ctx->delete_sampler_state = noop_delete_state;
 273         ctx->delete_vertex_elements_state = noop_delete_vertex_element;
 274         ctx->delete_vs_state = noop_delete_state;
 275         ctx->set_blend_color = noop_set_blend_color;
 276         ctx->set_clip_state = noop_set_clip_state;
 277         ctx->set_constant_buffer = noop_set_constant_buffer;
 278         ctx->set_fragment_sampler_views = noop_set_ps_sampler_view;
 279         ctx->set_framebuffer_state = noop_set_framebuffer_state;
 280         ctx->set_polygon_stipple = noop_set_polygon_stipple;
 281         ctx->set_sample_mask = noop_set_sample_mask;
 282         ctx->set_scissor_state = noop_set_scissor_state;
 283         ctx->set_stencil_ref = noop_set_stencil_ref;
 284         ctx->set_vertex_buffers = noop_set_vertex_buffers;
 285         ctx->set_index_buffer = noop_set_index_buffer;
 286         ctx->set_vertex_sampler_views = noop_set_vs_sampler_view;
 287         ctx->set_viewport_state = noop_set_viewport_state;
 288         ctx->sampler_view_destroy = noop_sampler_view_destroy;
 289         ctx->surface_destroy = noop_surface_destroy;
 290         ctx->draw_vbo = noop_draw_vbo;
 291         ctx->redefine_user_buffer = u_default_redefine_user_buffer;
 292 }