LCOV - code coverage report
Current view: top level - src/shaders - film_grain.c (source / functions) Hit Total Coverage
Test: Code coverage Lines: 15 19 78.9 %
Date: 2025-03-29 09:04:10 Functions: 3 3 100.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 7 12 58.3 %

           Branch data     Line data    Source code
       1                 :            : /*
       2                 :            :  * This file is part of libplacebo.
       3                 :            :  *
       4                 :            :  * libplacebo is free software; you can redistribute it and/or
       5                 :            :  * modify it under the terms of the GNU Lesser General Public
       6                 :            :  * License as published by the Free Software Foundation; either
       7                 :            :  * version 2.1 of the License, or (at your option) any later version.
       8                 :            :  *
       9                 :            :  * libplacebo is distributed in the hope that it will be useful,
      10                 :            :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      11                 :            :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      12                 :            :  * GNU Lesser General Public License for more details.
      13                 :            :  *
      14                 :            :  * You should have received a copy of the GNU Lesser General Public
      15                 :            :  * License along with libplacebo. If not, see <http://www.gnu.org/licenses/>.
      16                 :            :  */
      17                 :            : 
      18                 :            : #include "shaders.h"
      19                 :            : #include "shaders/film_grain.h"
      20                 :            : 
      21                 :        799 : bool pl_needs_film_grain(const struct pl_film_grain_params *params)
      22                 :            : {
      23   [ +  +  -  + ]:        799 :     switch (params->data.type) {
      24                 :            :     case PL_FILM_GRAIN_NONE: return false;
      25                 :         16 :     case PL_FILM_GRAIN_AV1:  return pl_needs_fg_av1(params);
      26                 :         14 :     case PL_FILM_GRAIN_H274: return pl_needs_fg_h274(params);
      27                 :          0 :     default: pl_unreachable();
      28                 :            :     }
      29                 :            : }
      30                 :            : 
      31                 :            : struct sh_grain_obj {
      32                 :            :     pl_shader_obj av1;
      33                 :            :     pl_shader_obj h274;
      34                 :            : };
      35                 :            : 
      36                 :          6 : static void sh_grain_uninit(pl_gpu gpu, void *ptr)
      37                 :            : {
      38                 :            :     struct sh_grain_obj *obj = ptr;
      39                 :          6 :     pl_shader_obj_destroy(&obj->av1);
      40                 :          6 :     pl_shader_obj_destroy(&obj->h274);
      41                 :          6 : }
      42                 :            : 
      43                 :         14 : bool pl_shader_film_grain(pl_shader sh, pl_shader_obj *grain_state,
      44                 :            :                           const struct pl_film_grain_params *params)
      45                 :            : {
      46         [ -  + ]:         14 :     if (!pl_needs_film_grain(params)) {
      47                 :            :         // FIXME: Instead of erroring, sample directly
      48                 :          0 :         SH_FAIL(sh, "pl_shader_film_grain called but no film grain needs to be "
      49                 :            :                     "applied, test with `pl_needs_film_grain` first!");
      50                 :          0 :         return false;
      51                 :            :     }
      52                 :            : 
      53                 :            :     struct sh_grain_obj *obj;
      54                 :         14 :     obj = SH_OBJ(sh, grain_state, PL_SHADER_OBJ_FILM_GRAIN,
      55                 :            :                  struct sh_grain_obj, sh_grain_uninit);
      56         [ +  - ]:         14 :     if (!obj)
      57                 :            :         return false;
      58                 :            : 
      59   [ +  +  -  - ]:         14 :     switch (params->data.type) {
      60                 :            :     case PL_FILM_GRAIN_NONE: return false;
      61                 :          8 :     case PL_FILM_GRAIN_AV1:  return pl_shader_fg_av1(sh, &obj->av1, params);
      62                 :          6 :     case PL_FILM_GRAIN_H274: return pl_shader_fg_h274(sh, &obj->h274, params);
      63                 :          0 :     default: pl_unreachable();
      64                 :            :     }
      65                 :            : }

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