src/gallium/auxiliary/postprocess/pp_init.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2011 Lauri Kasanen
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "pipe/p_compiler.h"
  29
  30 #include "postprocess/filters.h"
  31
  32 #include "pipe/p_screen.h"
  33 #include "util/u_inlines.h"
  34 #include "util/u_math.h"
  35 #include "util/u_debug.h"
  36 #include "util/u_memory.h"
  37 #include "cso_cache/cso_context.h"
  38
  39 /** Initialize the post-processing queue. */
  40 struct pp_queue_t *
  41 pp_init(struct pipe_context *pipe, const unsigned int *enabled,
  42         struct cso_context *cso)
  43 {
  44    unsigned int num_filters = 0;
  45    unsigned int curpos = 0, i, tmp_req = 0;
  46    struct pp_queue_t *ppq;
  47
  48    pp_debug("Initializing the post-processing queue.\n");
  49
  50    /* How many filters were requested? */
  51    for (i = 0; i < PP_FILTERS; i++) {
  52       if (enabled[i])
  53          num_filters++;
  54    }
  55    if (num_filters == 0)
  56       return NULL;
  57
  58    ppq = CALLOC(1, sizeof(struct pp_queue_t));
  59
  60    if (ppq == NULL) {
  61       pp_debug("Unable to allocate memory for ppq.\n");
  62       goto error;
  63    }
  64
  65    ppq->pp_queue = CALLOC(num_filters, sizeof(pp_func));
  66    if (ppq->pp_queue == NULL) {
  67       pp_debug("Unable to allocate memory for pp_queue.\n");
  68       goto error;
  69    }
  70
  71    ppq->shaders = CALLOC(num_filters, sizeof(void *));
  72    ppq->filters = CALLOC(num_filters, sizeof(unsigned int));
  73
  74    if ((ppq->shaders == NULL) ||
  75        (ppq->filters == NULL)) {
  76       pp_debug("Unable to allocate memory for shaders and filter arrays.\n");
  77       goto error;
  78    }
  79
  80    ppq->p = pp_init_prog(ppq, pipe, cso);
  81    if (ppq->p == NULL) {
  82       pp_debug("pp_init_prog returned NULL.\n");
  83       goto error;
  84    }
  85
  86    /* Add the enabled filters to the queue, in order */
  87    curpos = 0;
  88    for (i = 0; i < PP_FILTERS; i++) {
  89       if (enabled[i]) {
  90          ppq->pp_queue[curpos] = pp_filters[i].main;
  91          tmp_req = MAX2(tmp_req, pp_filters[i].inner_tmps);
  92          ppq->filters[curpos] = i;
  93
  94          if (pp_filters[i].shaders) {
  95             ppq->shaders[curpos] =
  96                CALLOC(pp_filters[i].shaders + 1, sizeof(void *));
  97             if (!ppq->shaders[curpos]) {
  98                pp_debug("Unable to allocate memory for shader list.\n");
  99                goto error;
 100             }
 101          }
 102
 103          /* Call the initialization function for the filter. */
 104          if (!pp_filters[i].init(ppq, curpos, enabled[i])) {
 105             pp_debug("Initialization for filter %u failed.\n", i);
 106             goto error;
 107          }
 108
 109          curpos++;
 110       }
 111    }
 112
 113    ppq->n_filters = curpos;
 114    ppq->n_tmp = (curpos > 2 ? 2 : 1);
 115    ppq->n_inner_tmp = tmp_req;
 116
 117    ppq->fbos_init = false;
 118
 119    for (i = 0; i < curpos; i++)
 120       ppq->shaders[i][0] = ppq->p->passvs;
 121
 122    pp_debug("Queue successfully allocated. %u filter(s).\n", curpos);
 123
 124    return ppq;
 125
 126  error:
 127
 128    if (ppq) {
 129       /* Assign curpos, since we only need to destroy initialized filters. */
 130       ppq->n_filters = curpos;
 131
 132       /* Call the common free function which must handle partial initialization. */
 133       pp_free(ppq);
 134    }
 135
 136    return NULL;
 137 }
 138
 139 /** Free any allocated FBOs (temp buffers). Called after resizing for example. */
 140 void
 141 pp_free_fbos(struct pp_queue_t *ppq)
 142 {
 143
 144    unsigned int i;
 145
 146    if (!ppq->fbos_init)
 147       return;
 148
 149    for (i = 0; i < ppq->n_tmp; i++) {
 150       pipe_surface_reference(&ppq->tmps[i], NULL);
 151       pipe_resource_reference(&ppq->tmp[i], NULL);
 152    }
 153    for (i = 0; i < ppq->n_inner_tmp; i++) {
 154       pipe_surface_reference(&ppq->inner_tmps[i], NULL);
 155       pipe_resource_reference(&ppq->inner_tmp[i], NULL);
 156    }
 157    pipe_surface_reference(&ppq->stencils, NULL);
 158    pipe_resource_reference(&ppq->stencil, NULL);
 159
 160    ppq->fbos_init = false;
 161 }
 162
 163 /**
 164  * Free the pp queue. Called on context termination and failure in
 165  * pp_init.
 166  */
 167 void
 168 pp_free(struct pp_queue_t *ppq)
 169 {
 170    unsigned int i, j;
 171
 172    pp_free_fbos(ppq);
 173
 174    if (ppq && ppq->p) {
 175       if (ppq->p->pipe && ppq->filters && ppq->shaders) {
 176          for (i = 0; i < ppq->n_filters; i++) {
 177             unsigned int filter = ppq->filters[i];
 178
 179             if (ppq->shaders[i] == NULL) {
 180                continue;
 181             }
 182
 183             /*
 184              * Common shader destruction code for all postprocessing
 185              * filters.
 186              */
 187             for (j = 0; j < pp_filters[filter].shaders; j++) {
 188                if (ppq->shaders[i][j] == NULL) {
 189                   /* We reached the end of initialized shaders. */
 190                   break;
 191                }
 192
 193                if (ppq->shaders[i][j] == ppq->p->passvs) {
 194                   continue;
 195                }
 196
 197                assert(ppq);
 198                assert(ppq->p);
 199                assert(ppq->p->pipe);
 200
 201                if (j >= pp_filters[filter].verts) {
 202                   assert(ppq->p->pipe->delete_fs_state);
 203                   ppq->p->pipe->delete_fs_state(ppq->p->pipe,
 204                                                 ppq->shaders[i][j]);
 205                   ppq->shaders[i][j] = NULL;
 206                } else {
 207                   assert(ppq->p->pipe->delete_vs_state);
 208                   ppq->p->pipe->delete_vs_state(ppq->p->pipe,
 209                                                 ppq->shaders[i][j]);
 210                   ppq->shaders[i][j] = NULL;
 211                }
 212             }
 213
 214             /* Finally call each filter type's free functionality. */
 215             pp_filters[filter].free(ppq, i);
 216          }
 217       }
 218
 219       FREE(ppq->p);
 220    }
 221
 222    if (ppq) {
 223       /*
 224        * Handle partial initialization for common resource destruction
 225        * in the create path.
 226        */
 227       FREE(ppq->filters);
 228       FREE(ppq->shaders);
 229       FREE(ppq->pp_queue);
 230
 231       FREE(ppq);
 232    }
 233
 234    pp_debug("Queue taken down.\n");
 235 }
 236
 237 /** Internal debug function. Should be available to final users. */
 238 void
 239 pp_debug(const char *fmt, ...)
 240 {
 241    va_list ap;
 242
 243    if (!debug_get_bool_option("PP_DEBUG", FALSE))
 244       return;
 245
 246    va_start(ap, fmt);
 247    _debug_vprintf(fmt, ap);
 248    va_end(ap);
 249 }
 250
 251 /** Allocate the temp FBOs. Called on makecurrent and resize. */
 252 void
 253 pp_init_fbos(struct pp_queue_t *ppq, unsigned int w,
 254              unsigned int h)
 255 {
 256
 257    struct program *p = ppq->p;  /* The lazy will inherit the earth */
 258
 259    unsigned int i;
 260    struct pipe_resource tmp_res;
 261
 262    if (ppq->fbos_init)
 263       return;
 264
 265    pp_debug("Initializing FBOs, size %ux%u\n", w, h);
 266    pp_debug("Requesting %u temps and %u inner temps\n", ppq->n_tmp,
 267             ppq->n_inner_tmp);
 268
 269    memset(&tmp_res, 0, sizeof(tmp_res));
 270    tmp_res.target = PIPE_TEXTURE_2D;
 271    tmp_res.format = p->surf.format = PIPE_FORMAT_B8G8R8A8_UNORM;
 272    tmp_res.width0 = w;
 273    tmp_res.height0 = h;
 274    tmp_res.depth0 = 1;
 275    tmp_res.array_size = 1;
 276    tmp_res.last_level = 0;
 277    tmp_res.bind = PIPE_BIND_RENDER_TARGET;
 278
 279    if (!p->screen->is_format_supported(p->screen, tmp_res.format,
 280                                        tmp_res.target, 1, tmp_res.bind))
 281       pp_debug("Temp buffers' format fail\n");
 282
 283    for (i = 0; i < ppq->n_tmp; i++) {
 284       ppq->tmp[i] = p->screen->resource_create(p->screen, &tmp_res);
 285       ppq->tmps[i] = p->pipe->create_surface(p->pipe, ppq->tmp[i], &p->surf);
 286
 287       if (!ppq->tmp[i] || !ppq->tmps[i])
 288          goto error;
 289    }
 290
 291    for (i = 0; i < ppq->n_inner_tmp; i++) {
 292       ppq->inner_tmp[i] = p->screen->resource_create(p->screen, &tmp_res);
 293       ppq->inner_tmps[i] = p->pipe->create_surface(p->pipe,
 294                                                    ppq->inner_tmp[i],
 295                                                    &p->surf);
 296
 297       if (!ppq->inner_tmp[i] || !ppq->inner_tmps[i])
 298          goto error;
 299    }
 300
 301    tmp_res.bind = PIPE_BIND_DEPTH_STENCIL;
 302
 303    tmp_res.format = p->surf.format = PIPE_FORMAT_S8_UINT_Z24_UNORM;
 304
 305    if (!p->screen->is_format_supported(p->screen, tmp_res.format,
 306                                        tmp_res.target, 1, tmp_res.bind)) {
 307
 308       tmp_res.format = p->surf.format = PIPE_FORMAT_Z24_UNORM_S8_UINT;
 309
 310       if (!p->screen->is_format_supported(p->screen, tmp_res.format,
 311                                           tmp_res.target, 1, tmp_res.bind))
 312          pp_debug("Temp Sbuffer format fail\n");
 313    }
 314
 315    ppq->stencil = p->screen->resource_create(p->screen, &tmp_res);
 316    ppq->stencils = p->pipe->create_surface(p->pipe, ppq->stencil, &p->surf);
 317    if (!ppq->stencil || !ppq->stencils)
 318       goto error;
 319
 320    p->framebuffer.width = w;
 321    p->framebuffer.height = h;
 322
 323    p->viewport.scale[0] = p->viewport.translate[0] = (float) w / 2.0f;
 324    p->viewport.scale[1] = p->viewport.translate[1] = (float) h / 2.0f;
 325    p->viewport.scale[3] = 1.0f;
 326    p->viewport.translate[3] = 0.0f;
 327
 328    ppq->fbos_init = true;
 329
 330    return;
 331
 332  error:
 333    pp_debug("Failed to allocate temp buffers!\n");
 334 }