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 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_blit.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_screen *pscreen, const unsigned int *enabled)
  43 {
  44
  45    unsigned int curpos = 0, i, tmp_req = 0;
  46    struct pp_queue_t *ppq;
  47    pp_func *tmp_q;
  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          curpos++;
  55    }
  56    if (!curpos)
  57       return NULL;
  58
  59    ppq = CALLOC(1, sizeof(struct pp_queue_t));
  60    tmp_q = CALLOC(curpos, sizeof(pp_func));
  61    ppq->shaders = CALLOC(curpos, sizeof(void *));
  62    ppq->verts = CALLOC(curpos, sizeof(unsigned int));
  63
  64    if (!tmp_q || !ppq || !ppq->shaders || !ppq->verts)
  65       goto error;
  66
  67    ppq->p = pp_init_prog(ppq, pscreen);
  68    if (!ppq->p)
  69       goto error;
  70
  71    /* Add the enabled filters to the queue, in order */
  72    curpos = 0;
  73    ppq->pp_queue = tmp_q;
  74    for (i = 0; i < PP_FILTERS; i++) {
  75       if (enabled[i]) {
  76          ppq->pp_queue[curpos] = pp_filters[i].main;
  77          tmp_req = MAX2(tmp_req, pp_filters[i].inner_tmps);
  78
  79          if (pp_filters[i].shaders) {
  80             ppq->shaders[curpos] =
  81                CALLOC(pp_filters[i].shaders + 1, sizeof(void *));
  82             ppq->verts[curpos] = pp_filters[i].verts;
  83             if (!ppq->shaders[curpos])
  84                goto error;
  85          }
  86          pp_filters[i].init(ppq, curpos, enabled[i]);
  87
  88          curpos++;
  89       }
  90    }
  91
  92    ppq->p->blitctx = util_create_blit(ppq->p->pipe, ppq->p->cso);
  93    if (!ppq->p->blitctx)
  94       goto error;
  95
  96    ppq->n_filters = curpos;
  97    ppq->n_tmp = (curpos > 2 ? 2 : 1);
  98    ppq->n_inner_tmp = tmp_req;
  99
 100    ppq->fbos_init = false;
 101
 102    for (i = 0; i < curpos; i++)
 103       ppq->shaders[i][0] = ppq->p->passvs;
 104
 105    pp_debug("Queue successfully allocated. %u filter(s).\n", curpos);
 106
 107    return ppq;
 108
 109  error:
 110    pp_debug("Error setting up pp\n");
 111
 112    if (ppq)
 113       FREE(ppq->p);
 114    FREE(ppq);
 115    FREE(tmp_q);
 116
 117    return NULL;
 118 }
 119
 120 /** Free any allocated FBOs (temp buffers). Called after resizing for example. */
 121 void
 122 pp_free_fbos(struct pp_queue_t *ppq)
 123 {
 124
 125    unsigned int i;
 126
 127    if (!ppq->fbos_init)
 128       return;
 129
 130    for (i = 0; i < ppq->n_tmp; i++) {
 131       pipe_surface_reference(&ppq->tmps[i], NULL);
 132       pipe_resource_reference(&ppq->tmp[i], NULL);
 133    }
 134    for (i = 0; i < ppq->n_inner_tmp; i++) {
 135       pipe_surface_reference(&ppq->inner_tmps[i], NULL);
 136       pipe_resource_reference(&ppq->inner_tmp[i], NULL);
 137    }
 138    pipe_resource_reference(&ppq->depth, NULL);
 139    pipe_surface_reference(&ppq->stencils, NULL);
 140    pipe_resource_reference(&ppq->stencil, NULL);
 141
 142    ppq->fbos_init = false;
 143 }
 144
 145 /** Free the pp queue. Called on context termination. */
 146 void
 147 pp_free(struct pp_queue_t *ppq)
 148 {
 149
 150    unsigned int i, j;
 151
 152    pp_free_fbos(ppq);
 153
 154    util_destroy_blit(ppq->p->blitctx);
 155
 156    cso_set_fragment_sampler_views(ppq->p->cso, 0, NULL);
 157    cso_release_all(ppq->p->cso);
 158
 159    for (i = 0; i < ppq->n_filters; i++) {
 160       for (j = 0; j < PP_MAX_PASSES && ppq->shaders[i][j]; j++) {
 161          if (j >= ppq->verts[i]) {
 162             ppq->p->pipe->delete_fs_state(ppq->p->pipe, ppq->shaders[i][j]);
 163             ppq->shaders[i][j] = NULL;
 164          }
 165          else if (ppq->shaders[i][j] != ppq->p->passvs) {
 166             ppq->p->pipe->delete_vs_state(ppq->p->pipe, ppq->shaders[i][j]);
 167             ppq->shaders[i][j] = NULL;
 168          }
 169       }
 170    }
 171
 172    cso_destroy_context(ppq->p->cso);
 173    ppq->p->pipe->destroy(ppq->p->pipe);
 174
 175    FREE(ppq->p);
 176    FREE(ppq->pp_queue);
 177    FREE(ppq);
 178
 179    pp_debug("Queue taken down.\n");
 180 }
 181
 182 /** Internal debug function. Should be available to final users. */
 183 void
 184 pp_debug(const char *fmt, ...)
 185 {
 186    va_list ap;
 187
 188    if (!debug_get_bool_option("PP_DEBUG", FALSE))
 189       return;
 190
 191    va_start(ap, fmt);
 192    _debug_vprintf(fmt, ap);
 193    va_end(ap);
 194 }
 195
 196 /** Allocate the temp FBOs. Called on makecurrent and resize. */
 197 void
 198 pp_init_fbos(struct pp_queue_t *ppq, unsigned int w,
 199              unsigned int h, struct pipe_resource *indepth)
 200 {
 201
 202    struct program *p = ppq->p;  /* The lazy will inherit the earth */
 203
 204    unsigned int i;
 205    struct pipe_resource tmp_res;
 206
 207    if (ppq->fbos_init)
 208       return;
 209
 210    pp_debug("Initializing FBOs, size %ux%u\n", w, h);
 211    pp_debug("Requesting %u temps and %u inner temps\n", ppq->n_tmp,
 212             ppq->n_inner_tmp);
 213
 214    memset(&tmp_res, 0, sizeof(tmp_res));
 215    tmp_res.target = PIPE_TEXTURE_2D;
 216    tmp_res.format = p->surf.format = PIPE_FORMAT_B8G8R8A8_UNORM;
 217    tmp_res.width0 = w;
 218    tmp_res.height0 = h;
 219    tmp_res.depth0 = 1;
 220    tmp_res.array_size = 1;
 221    tmp_res.last_level = 0;
 222    tmp_res.bind = p->surf.usage = PIPE_BIND_RENDER_TARGET;
 223
 224    if (!p->screen->is_format_supported(p->screen, tmp_res.format,
 225                                        tmp_res.target, 1, tmp_res.bind))
 226       pp_debug("Temp buffers' format fail\n");
 227
 228    for (i = 0; i < ppq->n_tmp; i++) {
 229       ppq->tmp[i] = p->screen->resource_create(p->screen, &tmp_res);
 230       ppq->tmps[i] = p->pipe->create_surface(p->pipe, ppq->tmp[i], &p->surf);
 231
 232       if (!ppq->tmp[i] || !ppq->tmps[i])
 233          goto error;
 234    }
 235
 236    for (i = 0; i < ppq->n_inner_tmp; i++) {
 237       ppq->inner_tmp[i] = p->screen->resource_create(p->screen, &tmp_res);
 238       ppq->inner_tmps[i] = p->pipe->create_surface(p->pipe,
 239                                                    ppq->inner_tmp[i],
 240                                                    &p->surf);
 241
 242       if (!ppq->inner_tmp[i] || !ppq->inner_tmps[i])
 243          goto error;
 244    }
 245
 246    tmp_res.format = p->surf.format = indepth->format;
 247    tmp_res.bind = p->surf.usage = PIPE_BIND_DEPTH_STENCIL;
 248    pipe_resource_reference(&ppq->depth, indepth);
 249    if (!ppq->depth)
 250       goto error;
 251
 252    tmp_res.format = p->surf.format = PIPE_FORMAT_S8_UINT_Z24_UNORM;
 253
 254    if (!p->screen->is_format_supported(p->screen, tmp_res.format,
 255                                        tmp_res.target, 1, tmp_res.bind)) {
 256
 257       tmp_res.format = p->surf.format = PIPE_FORMAT_Z24_UNORM_S8_UINT;
 258
 259       if (!p->screen->is_format_supported(p->screen, tmp_res.format,
 260                                           tmp_res.target, 1, tmp_res.bind))
 261          pp_debug("Temp Sbuffer format fail\n");
 262    }
 263
 264    ppq->stencil = p->screen->resource_create(p->screen, &tmp_res);
 265    ppq->stencils = p->pipe->create_surface(p->pipe, ppq->stencil, &p->surf);
 266    if (!ppq->stencil || !ppq->stencils)
 267       goto error;
 268
 269
 270    p->framebuffer.width = w;
 271    p->framebuffer.height = h;
 272
 273    p->viewport.scale[0] = p->viewport.translate[0] = (float) w / 2.0;
 274    p->viewport.scale[1] = p->viewport.translate[1] = (float) h / 2.0;
 275    p->viewport.scale[3] = 1.0f;
 276    p->viewport.translate[3] = 0.0f;
 277
 278    ppq->fbos_init = true;
 279
 280    return;
 281
 282  error:
 283    pp_debug("Failed to allocate temp buffers!\n");
 284 }