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 #include "postprocess/pp_private.h"
  32
  33 #include "pipe/p_screen.h"
  34 #include "util/u_inlines.h"
  35 #include "util/u_math.h"
  36 #include "util/u_debug.h"
  37 #include "util/u_memory.h"
  38 #include "cso_cache/cso_context.h"
  39
  40 /** Initialize the post-processing queue. */
  41 struct pp_queue_t *
  42 pp_init(struct pipe_context *pipe, const unsigned int *enabled,
  43         struct cso_context *cso)
  44 {
  45    unsigned int num_filters = 0;
  46    unsigned int curpos = 0, i, tmp_req = 0;
  47    struct pp_queue_t *ppq;
  48
  49    pp_debug("Initializing the post-processing queue.\n");
  50
  51    /* How many filters were requested? */
  52    for (i = 0; i < PP_FILTERS; i++) {
  53       if (enabled[i])
  54          num_filters++;
  55    }
  56    if (num_filters == 0)
  57       return NULL;
  58
  59    ppq = CALLOC(1, sizeof(struct pp_queue_t));
  60
  61    if (!ppq) {
  62       pp_debug("Unable to allocate memory for ppq.\n");
  63       goto error;
  64    }
  65
  66    ppq->pp_queue = CALLOC(num_filters, sizeof(pp_func));
  67    if (ppq->pp_queue == NULL) {
  68       pp_debug("Unable to allocate memory for pp_queue.\n");
  69       goto error;
  70    }
  71
  72    ppq->shaders = CALLOC(num_filters, sizeof(void *));
  73    ppq->filters = CALLOC(num_filters, sizeof(unsigned int));
  74
  75    if ((ppq->shaders == NULL) ||
  76        (ppq->filters == NULL)) {
  77       pp_debug("Unable to allocate memory for shaders and filter arrays.\n");
  78       goto error;
  79    }
  80
  81    ppq->p = pp_init_prog(ppq, pipe, cso);
  82    if (ppq->p == NULL) {
  83       pp_debug("pp_init_prog returned NULL.\n");
  84       goto error;
  85    }
  86
  87    /* Add the enabled filters to the queue, in order */
  88    curpos = 0;
  89    for (i = 0; i < PP_FILTERS; i++) {
  90       if (enabled[i]) {
  91          ppq->pp_queue[curpos] = pp_filters[i].main;
  92          tmp_req = MAX2(tmp_req, pp_filters[i].inner_tmps);
  93          ppq->filters[curpos] = i;
  94
  95          if (pp_filters[i].shaders) {
  96             ppq->shaders[curpos] =
  97                CALLOC(pp_filters[i].shaders + 1, sizeof(void *));
  98             if (!ppq->shaders[curpos]) {
  99                pp_debug("Unable to allocate memory for shader list.\n");
 100                goto error;
 101             }
 102          }
 103
 104          /* Call the initialization function for the filter. */
 105          if (!pp_filters[i].init(ppq, curpos, enabled[i])) {
 106             pp_debug("Initialization for filter %u failed.\n", i);
 107             goto error;
 108          }
 109
 110          curpos++;
 111       }
 112    }
 113
 114    ppq->n_filters = curpos;
 115    ppq->n_tmp = (curpos > 2 ? 2 : 1);
 116    ppq->n_inner_tmp = tmp_req;
 117
 118    ppq->fbos_init = false;
 119
 120    for (i = 0; i < curpos; i++)
 121       ppq->shaders[i][0] = ppq->p->passvs;
 122
 123    pp_debug("Queue successfully allocated. %u filter(s).\n", curpos);
 124
 125    return ppq;
 126
 127  error:
 128
 129    if (ppq) {
 130       /* Assign curpos, since we only need to destroy initialized filters. */
 131       ppq->n_filters = curpos;
 132
 133       /* Call the common free function which must handle partial initialization. */
 134       pp_free(ppq);
 135    }
 136
 137    return NULL;
 138 }
 139
 140 /** Free any allocated FBOs (temp buffers). Called after resizing for example. */
 141 void
 142 pp_free_fbos(struct pp_queue_t *ppq)
 143 {
 144
 145    unsigned int i;
 146
 147    if (!ppq->fbos_init)
 148       return;
 149
 150    for (i = 0; i < ppq->n_tmp; i++) {
 151       pipe_surface_reference(&ppq->tmps[i], NULL);
 152       pipe_resource_reference(&ppq->tmp[i], NULL);
 153    }
 154    for (i = 0; i < ppq->n_inner_tmp; i++) {
 155       pipe_surface_reference(&ppq->inner_tmps[i], NULL);
 156       pipe_resource_reference(&ppq->inner_tmp[i], NULL);
 157    }
 158    pipe_surface_reference(&ppq->stencils, NULL);
 159    pipe_resource_reference(&ppq->stencil, NULL);
 160
 161    ppq->fbos_init = false;
 162 }
 163
 164 /**
 165  * Free the pp queue. Called on context termination and failure in
 166  * pp_init.
 167  */
 168 void
 169 pp_free(struct pp_queue_t *ppq)
 170 {
 171    unsigned int i, j;
 172
 173    if (!ppq)
 174       return;
 175
 176    pp_free_fbos(ppq);
 177
 178    if (ppq->p) {
 179       if (ppq->p->pipe && ppq->filters && ppq->shaders) {
 180          for (i = 0; i < ppq->n_filters; i++) {
 181             unsigned int filter = ppq->filters[i];
 182
 183             if (ppq->shaders[i] == NULL) {
 184                continue;
 185             }
 186
 187             /*
 188              * Common shader destruction code for all postprocessing
 189              * filters.
 190              */
 191             for (j = 0; j < pp_filters[filter].shaders; j++) {
 192                if (ppq->shaders[i][j] == NULL) {
 193                   /* We reached the end of initialized shaders. */
 194                   break;
 195                }
 196
 197                if (ppq->shaders[i][j] == ppq->p->passvs) {
 198                   continue;
 199                }
 200
 201                assert(ppq);
 202                assert(ppq->p);
 203                assert(ppq->p->pipe);
 204
 205                if (j >= pp_filters[filter].verts) {
 206                   assert(ppq->p->pipe->delete_fs_state);
 207                   ppq->p->pipe->delete_fs_state(ppq->p->pipe,
 208                                                 ppq->shaders[i][j]);
 209                   ppq->shaders[i][j] = NULL;
 210                } else {
 211                   assert(ppq->p->pipe->delete_vs_state);
 212                   ppq->p->pipe->delete_vs_state(ppq->p->pipe,
 213                                                 ppq->shaders[i][j]);
 214                   ppq->shaders[i][j] = NULL;
 215                }
 216             }
 217
 218             /* Finally call each filter type's free functionality. */
 219             pp_filters[filter].free(ppq, i);
 220          }
 221       }
 222
 223       FREE(ppq->p);
 224    }
 225
 226    /*
 227     * Handle partial initialization for common resource destruction
 228     * in the create path.
 229     */
 230    FREE(ppq->filters);
 231    FREE(ppq->shaders);
 232    FREE(ppq->pp_queue);
 233
 234    FREE(ppq);
 235
 236    pp_debug("Queue taken down.\n");
 237 }
 238
 239 /** Internal debug function. Should be available to final users. */
 240 void
 241 pp_debug(const char *fmt, ...)
 242 {
 243    va_list ap;
 244
 245    if (!debug_get_bool_option("PP_DEBUG", FALSE))
 246       return;
 247
 248    va_start(ap, fmt);
 249    _debug_vprintf(fmt, ap);
 250    va_end(ap);
 251 }
 252
 253 /** Allocate the temp FBOs. Called on makecurrent and resize. */
 254 void
 255 pp_init_fbos(struct pp_queue_t *ppq, unsigned int w,
 256              unsigned int h)
 257 {
 258
 259    struct pp_program *p = ppq->p;  /* The lazy will inherit the earth */
 260
 261    unsigned int i;
 262    struct pipe_resource tmp_res;
 263
 264    if (ppq->fbos_init)
 265       return;
 266
 267    pp_debug("Initializing FBOs, size %ux%u\n", w, h);
 268    pp_debug("Requesting %u temps and %u inner temps\n", ppq->n_tmp,
 269             ppq->n_inner_tmp);
 270
 271    memset(&tmp_res, 0, sizeof(tmp_res));
 272    tmp_res.target = PIPE_TEXTURE_2D;
 273    tmp_res.format = p->surf.format = PIPE_FORMAT_B8G8R8A8_UNORM;
 274    tmp_res.width0 = w;
 275    tmp_res.height0 = h;
 276    tmp_res.depth0 = 1;
 277    tmp_res.array_size = 1;
 278    tmp_res.last_level = 0;
 279    tmp_res.bind = PIPE_BIND_RENDER_TARGET;
 280
 281    if (!p->screen->is_format_supported(p->screen, tmp_res.format,
 282                                        tmp_res.target, 1, tmp_res.bind))
 283       pp_debug("Temp buffers' format fail\n");
 284
 285    for (i = 0; i < ppq->n_tmp; i++) {
 286       ppq->tmp[i] = p->screen->resource_create(p->screen, &tmp_res);
 287       ppq->tmps[i] = p->pipe->create_surface(p->pipe, ppq->tmp[i], &p->surf);
 288
 289       if (!ppq->tmp[i] || !ppq->tmps[i])
 290          goto error;
 291    }
 292
 293    for (i = 0; i < ppq->n_inner_tmp; i++) {
 294       ppq->inner_tmp[i] = p->screen->resource_create(p->screen, &tmp_res);
 295       ppq->inner_tmps[i] = p->pipe->create_surface(p->pipe,
 296                                                    ppq->inner_tmp[i],
 297                                                    &p->surf);
 298
 299       if (!ppq->inner_tmp[i] || !ppq->inner_tmps[i])
 300          goto error;
 301    }
 302
 303    tmp_res.bind = PIPE_BIND_DEPTH_STENCIL;
 304
 305    tmp_res.format = p->surf.format = PIPE_FORMAT_S8_UINT_Z24_UNORM;
 306
 307    if (!p->screen->is_format_supported(p->screen, tmp_res.format,
 308                                        tmp_res.target, 1, tmp_res.bind)) {
 309
 310       tmp_res.format = p->surf.format = PIPE_FORMAT_Z24_UNORM_S8_UINT;
 311
 312       if (!p->screen->is_format_supported(p->screen, tmp_res.format,
 313                                           tmp_res.target, 1, tmp_res.bind))
 314          pp_debug("Temp Sbuffer format fail\n");
 315    }
 316
 317    ppq->stencil = p->screen->resource_create(p->screen, &tmp_res);
 318    ppq->stencils = p->pipe->create_surface(p->pipe, ppq->stencil, &p->surf);
 319    if (!ppq->stencil || !ppq->stencils)
 320       goto error;
 321
 322    p->framebuffer.width = w;
 323    p->framebuffer.height = h;
 324
 325    p->viewport.scale[0] = p->viewport.translate[0] = (float) w / 2.0f;
 326    p->viewport.scale[1] = p->viewport.translate[1] = (float) h / 2.0f;
 327
 328    ppq->fbos_init = true;
 329
 330    return;
 331
 332  error:
 333    pp_debug("Failed to allocate temp buffers!\n");
 334 }