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_context *pipe, const unsigned int *enabled,
  43         struct cso_context *cso)
  44 {
  45
  46    unsigned int curpos = 0, i, tmp_req = 0;
  47    struct pp_queue_t *ppq;
  48    pp_func *tmp_q;
  49
  50    pp_debug("Initializing the post-processing queue.\n");
  51
  52    /* How many filters were requested? */
  53    for (i = 0; i < PP_FILTERS; i++) {
  54       if (enabled[i])
  55          curpos++;
  56    }
  57    if (!curpos)
  58       return NULL;
  59
  60    ppq = CALLOC(1, sizeof(struct pp_queue_t));
  61    tmp_q = CALLOC(curpos, sizeof(pp_func));
  62    ppq->shaders = CALLOC(curpos, sizeof(void *));
  63    ppq->verts = CALLOC(curpos, sizeof(unsigned int));
  64
  65    if (!tmp_q || !ppq || !ppq->shaders || !ppq->verts)
  66       goto error;
  67
  68    ppq->p = pp_init_prog(ppq, pipe, cso);
  69    if (!ppq->p)
  70       goto error;
  71
  72    /* Add the enabled filters to the queue, in order */
  73    curpos = 0;
  74    ppq->pp_queue = tmp_q;
  75    for (i = 0; i < PP_FILTERS; i++) {
  76       if (enabled[i]) {
  77          ppq->pp_queue[curpos] = pp_filters[i].main;
  78          tmp_req = MAX2(tmp_req, pp_filters[i].inner_tmps);
  79
  80          if (pp_filters[i].shaders) {
  81             ppq->shaders[curpos] =
  82                CALLOC(pp_filters[i].shaders + 1, sizeof(void *));
  83             ppq->verts[curpos] = pp_filters[i].verts;
  84             if (!ppq->shaders[curpos])
  85                goto error;
  86          }
  87          pp_filters[i].init(ppq, curpos, enabled[i]);
  88
  89          curpos++;
  90       }
  91    }
  92
  93    ppq->p->blitctx = util_create_blit(ppq->p->pipe, cso);
  94    if (!ppq->p->blitctx)
  95       goto error;
  96
  97    ppq->n_filters = curpos;
  98    ppq->n_tmp = (curpos > 2 ? 2 : 1);
  99    ppq->n_inner_tmp = tmp_req;
 100
 101    ppq->fbos_init = false;
 102
 103    for (i = 0; i < curpos; i++)
 104       ppq->shaders[i][0] = ppq->p->passvs;
 105
 106    pp_debug("Queue successfully allocated. %u filter(s).\n", curpos);
 107
 108    return ppq;
 109
 110  error:
 111    pp_debug("Error setting up pp\n");
 112
 113    if (ppq)
 114       FREE(ppq->p);
 115    FREE(ppq);
 116    FREE(tmp_q);
 117
 118    return NULL;
 119 }
 120
 121 /** Free any allocated FBOs (temp buffers). Called after resizing for example. */
 122 void
 123 pp_free_fbos(struct pp_queue_t *ppq)
 124 {
 125
 126    unsigned int i;
 127
 128    if (!ppq->fbos_init)
 129       return;
 130
 131    for (i = 0; i < ppq->n_tmp; i++) {
 132       pipe_surface_reference(&ppq->tmps[i], NULL);
 133       pipe_resource_reference(&ppq->tmp[i], NULL);
 134    }
 135    for (i = 0; i < ppq->n_inner_tmp; i++) {
 136       pipe_surface_reference(&ppq->inner_tmps[i], NULL);
 137       pipe_resource_reference(&ppq->inner_tmp[i], NULL);
 138    }
 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    for (i = 0; i < ppq->n_filters; i++) {
 157       for (j = 0; j < PP_MAX_PASSES && ppq->shaders[i][j]; j++) {
 158          if (j >= ppq->verts[i]) {
 159             ppq->p->pipe->delete_fs_state(ppq->p->pipe, ppq->shaders[i][j]);
 160             ppq->shaders[i][j] = NULL;
 161          }
 162          else if (ppq->shaders[i][j] != ppq->p->passvs) {
 163             ppq->p->pipe->delete_vs_state(ppq->p->pipe, ppq->shaders[i][j]);
 164             ppq->shaders[i][j] = NULL;
 165          }
 166       }
 167    }
 168
 169    FREE(ppq->p);
 170    FREE(ppq->pp_queue);
 171    FREE(ppq);
 172
 173    pp_debug("Queue taken down.\n");
 174 }
 175
 176 /** Internal debug function. Should be available to final users. */
 177 void
 178 pp_debug(const char *fmt, ...)
 179 {
 180    va_list ap;
 181
 182    if (!debug_get_bool_option("PP_DEBUG", FALSE))
 183       return;
 184
 185    va_start(ap, fmt);
 186    _debug_vprintf(fmt, ap);
 187    va_end(ap);
 188 }
 189
 190 /** Allocate the temp FBOs. Called on makecurrent and resize. */
 191 void
 192 pp_init_fbos(struct pp_queue_t *ppq, unsigned int w,
 193              unsigned int h)
 194 {
 195
 196    struct program *p = ppq->p;  /* The lazy will inherit the earth */
 197
 198    unsigned int i;
 199    struct pipe_resource tmp_res;
 200
 201    if (ppq->fbos_init)
 202       return;
 203
 204    pp_debug("Initializing FBOs, size %ux%u\n", w, h);
 205    pp_debug("Requesting %u temps and %u inner temps\n", ppq->n_tmp,
 206             ppq->n_inner_tmp);
 207
 208    memset(&tmp_res, 0, sizeof(tmp_res));
 209    tmp_res.target = PIPE_TEXTURE_2D;
 210    tmp_res.format = p->surf.format = PIPE_FORMAT_B8G8R8A8_UNORM;
 211    tmp_res.width0 = w;
 212    tmp_res.height0 = h;
 213    tmp_res.depth0 = 1;
 214    tmp_res.array_size = 1;
 215    tmp_res.last_level = 0;
 216    tmp_res.bind = PIPE_BIND_RENDER_TARGET;
 217
 218    if (!p->screen->is_format_supported(p->screen, tmp_res.format,
 219                                        tmp_res.target, 1, tmp_res.bind))
 220       pp_debug("Temp buffers' format fail\n");
 221
 222    for (i = 0; i < ppq->n_tmp; i++) {
 223       ppq->tmp[i] = p->screen->resource_create(p->screen, &tmp_res);
 224       ppq->tmps[i] = p->pipe->create_surface(p->pipe, ppq->tmp[i], &p->surf);
 225
 226       if (!ppq->tmp[i] || !ppq->tmps[i])
 227          goto error;
 228    }
 229
 230    for (i = 0; i < ppq->n_inner_tmp; i++) {
 231       ppq->inner_tmp[i] = p->screen->resource_create(p->screen, &tmp_res);
 232       ppq->inner_tmps[i] = p->pipe->create_surface(p->pipe,
 233                                                    ppq->inner_tmp[i],
 234                                                    &p->surf);
 235
 236       if (!ppq->inner_tmp[i] || !ppq->inner_tmps[i])
 237          goto error;
 238    }
 239
 240    tmp_res.bind = PIPE_BIND_DEPTH_STENCIL;
 241
 242    tmp_res.format = p->surf.format = PIPE_FORMAT_S8_UINT_Z24_UNORM;
 243
 244    if (!p->screen->is_format_supported(p->screen, tmp_res.format,
 245                                        tmp_res.target, 1, tmp_res.bind)) {
 246
 247       tmp_res.format = p->surf.format = PIPE_FORMAT_Z24_UNORM_S8_UINT;
 248
 249       if (!p->screen->is_format_supported(p->screen, tmp_res.format,
 250                                           tmp_res.target, 1, tmp_res.bind))
 251          pp_debug("Temp Sbuffer format fail\n");
 252    }
 253
 254    ppq->stencil = p->screen->resource_create(p->screen, &tmp_res);
 255    ppq->stencils = p->pipe->create_surface(p->pipe, ppq->stencil, &p->surf);
 256    if (!ppq->stencil || !ppq->stencils)
 257       goto error;
 258
 259
 260    p->framebuffer.width = w;
 261    p->framebuffer.height = h;
 262
 263    p->viewport.scale[0] = p->viewport.translate[0] = (float) w / 2.0;
 264    p->viewport.scale[1] = p->viewport.translate[1] = (float) h / 2.0;
 265    p->viewport.scale[3] = 1.0f;
 266    p->viewport.translate[3] = 0.0f;
 267
 268    ppq->fbos_init = true;
 269
 270    return;
 271
 272  error:
 273    pp_debug("Failed to allocate temp buffers!\n");
 274 }