src/gallium/drivers/trace/tr_texture.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
   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 TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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_inlines.h"
  29 #include "util/u_hash_table.h"
  30 #include "util/u_memory.h"
  31
  32 #include "tr_screen.h"
  33 #include "tr_texture.h"
  34
  35
  36 struct pipe_texture *
  37 trace_texture_create(struct trace_screen *tr_scr,
  38                      struct pipe_texture *texture)
  39 {
  40    struct trace_texture *tr_tex;
  41
  42    if(!texture)
  43       goto error;
  44
  45    assert(texture->screen == tr_scr->screen);
  46
  47    tr_tex = CALLOC_STRUCT(trace_texture);
  48    if(!tr_tex)
  49       goto error;
  50
  51    memcpy(&tr_tex->base, texture, sizeof(struct pipe_texture));
  52    tr_tex->base.screen = &tr_scr->base;
  53    tr_tex->texture = texture;
  54
  55    return &tr_tex->base;
  56
  57 error:
  58    pipe_texture_reference(&texture, NULL);
  59    return NULL;
  60 }
  61
  62
  63 void
  64 trace_texture_destroy(struct trace_screen *tr_scr,
  65                       struct pipe_texture *texture)
  66 {
  67    struct trace_texture *tr_tex = trace_texture(tr_scr, texture);
  68    pipe_texture_reference(&tr_tex->texture, NULL);
  69    FREE(tr_tex);
  70 }
  71
  72
  73 struct pipe_surface *
  74 trace_surface_create(struct trace_texture *tr_tex,
  75                      struct pipe_surface *surface)
  76 {
  77    struct trace_surface *tr_surf;
  78
  79    if(!surface)
  80       goto error;
  81
  82    assert(surface->texture == tr_tex->texture);
  83
  84    tr_surf = CALLOC_STRUCT(trace_surface);
  85    if(!tr_surf)
  86       goto error;
  87
  88    memcpy(&tr_surf->base, surface, sizeof(struct pipe_surface));
  89
  90    tr_surf->base.winsys = tr_tex->base.screen->winsys;
  91    tr_surf->base.texture = NULL;
  92    pipe_texture_reference(&tr_surf->base.texture, &tr_tex->base);
  93    tr_surf->surface = surface;
  94
  95    return &tr_surf->base;
  96
  97 error:
  98    pipe_surface_reference(&surface, NULL);
  99    return NULL;
 100 }
 101
 102
 103 void
 104 trace_surface_destroy(struct trace_texture *tr_tex,
 105                       struct pipe_surface *surface)
 106 {
 107    struct trace_surface *tr_surf = trace_surface(tr_tex, surface);
 108    pipe_texture_reference(&tr_surf->base.texture, NULL);
 109    pipe_surface_reference(&tr_surf->surface, NULL);
 110    FREE(tr_surf);
 111 }
 112