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  1. /**************************************************************************
  2.  *
  3.  * Copyright 2009 VMware, Inc.
  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 VMWARE 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 "util/u_inlines.h"
  29. #include "util/u_memory.h"
  30.  
  31. #include "id_screen.h"
  32. #include "id_objects.h"
  33. #include "id_context.h"
  34.  
  35.  
  36.  
  37. struct pipe_resource *
  38. identity_resource_create(struct identity_screen *id_screen,
  39.                         struct pipe_resource *resource)
  40. {
  41.    struct identity_resource *id_resource;
  42.  
  43.    if(!resource)
  44.       goto error;
  45.  
  46.    assert(resource->screen == id_screen->screen);
  47.  
  48.    id_resource = CALLOC_STRUCT(identity_resource);
  49.    if(!id_resource)
  50.       goto error;
  51.  
  52.    memcpy(&id_resource->base, resource, sizeof(struct pipe_resource));
  53.  
  54.    pipe_reference_init(&id_resource->base.reference, 1);
  55.    id_resource->base.screen = &id_screen->base;
  56.    id_resource->resource = resource;
  57.  
  58.    return &id_resource->base;
  59.  
  60. error:
  61.    pipe_resource_reference(&resource, NULL);
  62.    return NULL;
  63. }
  64.  
  65. void
  66. identity_resource_destroy(struct identity_resource *id_resource)
  67. {
  68.    pipe_resource_reference(&id_resource->resource, NULL);
  69.    FREE(id_resource);
  70. }
  71.  
  72.  
  73. struct pipe_surface *
  74. identity_surface_create(struct identity_context *id_context,
  75.                         struct identity_resource *id_resource,
  76.                         struct pipe_surface *surface)
  77. {
  78.    struct identity_surface *id_surface;
  79.  
  80.    if(!surface)
  81.       goto error;
  82.  
  83.    assert(surface->texture == id_resource->resource);
  84.  
  85.    id_surface = CALLOC_STRUCT(identity_surface);
  86.    if(!id_surface)
  87.       goto error;
  88.  
  89.    memcpy(&id_surface->base, surface, sizeof(struct pipe_surface));
  90.  
  91.    pipe_reference_init(&id_surface->base.reference, 1);
  92.    id_surface->base.texture = NULL;
  93.    pipe_resource_reference(&id_surface->base.texture, &id_resource->base);
  94.    id_surface->surface = surface;
  95.  
  96.    return &id_surface->base;
  97.  
  98. error:
  99.    pipe_surface_reference(&surface, NULL);
  100.    return NULL;
  101. }
  102.  
  103. void
  104. identity_surface_destroy(struct identity_context *id_context,
  105.                          struct identity_surface *id_surface)
  106. {
  107.    pipe_resource_reference(&id_surface->base.texture, NULL);
  108.    id_context->pipe->surface_destroy(id_context->pipe,
  109.                                      id_surface->surface);
  110.    FREE(id_surface);
  111. }
  112.  
  113.  
  114. struct pipe_sampler_view *
  115. identity_sampler_view_create(struct identity_context *id_context,
  116.                              struct identity_resource *id_resource,
  117.                              struct pipe_sampler_view *view)
  118. {
  119.    struct identity_sampler_view *id_view;
  120.  
  121.    if (!view)
  122.       goto error;
  123.  
  124.    assert(view->texture == id_resource->resource);
  125.  
  126.    id_view = CALLOC_STRUCT(identity_sampler_view);
  127.  
  128.    id_view->base = *view;
  129.    id_view->base.reference.count = 1;
  130.    id_view->base.texture = NULL;
  131.    pipe_resource_reference(&id_view->base.texture, id_resource->resource);
  132.    id_view->base.context = id_context->pipe;
  133.    id_view->sampler_view = view;
  134.  
  135.    return &id_view->base;
  136. error:
  137.    return NULL;
  138. }
  139.  
  140. void
  141. identity_sampler_view_destroy(struct identity_context *id_context,
  142.                               struct identity_sampler_view *id_view)
  143. {
  144.    pipe_resource_reference(&id_view->base.texture, NULL);
  145.    id_context->pipe->sampler_view_destroy(id_context->pipe,
  146.                                           id_view->sampler_view);
  147.    FREE(id_view);
  148. }
  149.  
  150.  
  151. struct pipe_transfer *
  152. identity_transfer_map(struct identity_context *id_context,
  153.                       struct identity_resource *id_resource,
  154.                       struct pipe_transfer *transfer)
  155. {
  156.    struct identity_transfer *id_transfer;
  157.  
  158.    if(!transfer)
  159.       goto error;
  160.  
  161.    assert(transfer->resource == id_resource->resource);
  162.  
  163.    id_transfer = CALLOC_STRUCT(identity_transfer);
  164.    if(!id_transfer)
  165.       goto error;
  166.  
  167.    memcpy(&id_transfer->base, transfer, sizeof(struct pipe_transfer));
  168.  
  169.    id_transfer->base.resource = NULL;
  170.    id_transfer->transfer = transfer;
  171.  
  172.    pipe_resource_reference(&id_transfer->base.resource, &id_resource->base);
  173.    assert(id_transfer->base.resource == &id_resource->base);
  174.  
  175.    return &id_transfer->base;
  176.  
  177. error:
  178.    id_context->pipe->transfer_unmap(id_context->pipe, transfer);
  179.    return NULL;
  180. }
  181.  
  182. void
  183. identity_transfer_destroy(struct identity_context *id_context,
  184.                           struct identity_transfer *id_transfer)
  185. {
  186.    pipe_resource_reference(&id_transfer->base.resource, NULL);
  187.    FREE(id_transfer);
  188. }
  189.  
  190.