dlls/wined3d/view.c

   1 /*
   2  * Copyright 2009, 2011 Henri Verbeet for CodeWeavers
   3  *
   4  * This library 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  * This library 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 GNU
  12  * 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 this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  *
  18  */
  19
  20 #include "config.h"
  21 #include "wine/port.h"
  22
  23 #include "wined3d_private.h"
  24
  25 WINE_DEFAULT_DEBUG_CHANNEL(d3d);
  26
  27 ULONG CDECL wined3d_rendertarget_view_incref(struct wined3d_rendertarget_view *view)
  28 {
  29     ULONG refcount = InterlockedIncrement(&view->refcount);
  30
  31     TRACE("%p increasing refcount to %u.\n", view, refcount);
  32
  33     return refcount;
  34 }
  35
  36 ULONG CDECL wined3d_rendertarget_view_decref(struct wined3d_rendertarget_view *view)
  37 {
  38     ULONG refcount = InterlockedDecrement(&view->refcount);
  39
  40     TRACE("%p decreasing refcount to %u.\n", view, refcount);
  41
  42     if (!refcount)
  43     {
  44         /* Call wined3d_object_destroyed() before releasing the resource,
  45          * since releasing the resource may end up destroying the parent. */
  46         view->parent_ops->wined3d_object_destroyed(view->parent);
  47         wined3d_resource_decref(view->resource);
  48         HeapFree(GetProcessHeap(), 0, view);
  49     }
  50
  51     return refcount;
  52 }
  53
  54 void * CDECL wined3d_rendertarget_view_get_parent(const struct wined3d_rendertarget_view *view)
  55 {
  56     TRACE("view %p.\n", view);
  57
  58     return view->parent;
  59 }
  60
  61 void * CDECL wined3d_rendertarget_view_get_sub_resource_parent(const struct wined3d_rendertarget_view *view)
  62 {
  63     struct wined3d_resource *sub_resource;
  64
  65     TRACE("view %p.\n", view);
  66
  67     if (view->resource->type == WINED3D_RTYPE_BUFFER)
  68         return wined3d_buffer_get_parent(buffer_from_resource(view->resource));
  69
  70     if (!(sub_resource = wined3d_texture_get_sub_resource(wined3d_texture_from_resource(view->resource),
  71             view->sub_resource_idx)))
  72         return NULL;
  73
  74     return wined3d_resource_get_parent(sub_resource);
  75 }
  76
  77 void CDECL wined3d_rendertarget_view_set_parent(struct wined3d_rendertarget_view *view, void *parent)
  78 {
  79     TRACE("view %p, parent %p.\n", view, parent);
  80
  81     view->parent = parent;
  82 }
  83
  84 struct wined3d_resource * CDECL wined3d_rendertarget_view_get_resource(const struct wined3d_rendertarget_view *view)
  85 {
  86     TRACE("view %p.\n", view);
  87
  88     return view->resource;
  89 }
  90
  91 static void wined3d_rendertarget_view_init(struct wined3d_rendertarget_view *view,
  92         const struct wined3d_rendertarget_view_desc *desc, struct wined3d_resource *resource,
  93         void *parent, const struct wined3d_parent_ops *parent_ops)
  94 {
  95     const struct wined3d_gl_info *gl_info = &resource->device->adapter->gl_info;
  96
  97     view->refcount = 1;
  98     view->resource = resource;
  99     wined3d_resource_incref(resource);
 100     view->parent = parent;
 101     view->parent_ops = parent_ops;
 102
 103     view->format = wined3d_get_format(gl_info, desc->format_id);
 104     if (resource->type == WINED3D_RTYPE_BUFFER)
 105     {
 106         view->sub_resource_idx = 0;
 107         view->buffer_offset = desc->u.buffer.start_idx;
 108         view->width = desc->u.buffer.count;
 109         view->height = 1;
 110         view->depth = 1;
 111     }
 112     else
 113     {
 114         struct wined3d_texture *texture = wined3d_texture_from_resource(resource);
 115         struct wined3d_resource *sub_resource;
 116
 117         view->sub_resource_idx = desc->u.texture.layer_idx * texture->level_count + desc->u.texture.level_idx;
 118         sub_resource = wined3d_texture_get_sub_resource(texture, view->sub_resource_idx);
 119
 120         view->buffer_offset = 0;
 121         view->width = sub_resource->width;
 122         view->height = sub_resource->height;
 123         view->depth = desc->u.texture.layer_count;
 124     }
 125 }
 126
 127 HRESULT CDECL wined3d_rendertarget_view_create(const struct wined3d_rendertarget_view_desc *desc,
 128         struct wined3d_resource *resource, void *parent, const struct wined3d_parent_ops *parent_ops,
 129         struct wined3d_rendertarget_view **view)
 130 {
 131     struct wined3d_rendertarget_view *object;
 132
 133     TRACE("desc %p, resource %p, parent %p, view %p.\n",
 134             desc, resource, parent, view);
 135
 136     if (!(object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object))))
 137         return E_OUTOFMEMORY;
 138
 139     wined3d_rendertarget_view_init(object, desc, resource, parent, parent_ops);
 140
 141     TRACE("Created render target view %p.\n", object);
 142     *view = object;
 143
 144     return WINED3D_OK;
 145 }
 146
 147 HRESULT CDECL wined3d_rendertarget_view_create_from_surface(struct wined3d_surface *surface,
 148         void *parent, const struct wined3d_parent_ops *parent_ops, struct wined3d_rendertarget_view **view)
 149 {
 150     struct wined3d_rendertarget_view_desc desc;
 151
 152     TRACE("surface %p, view %p.\n", surface, view);
 153
 154     desc.format_id = surface->resource.format->id;
 155     desc.u.texture.level_idx = surface->texture_level;
 156     desc.u.texture.layer_idx = surface->texture_layer;
 157     desc.u.texture.layer_count = 1;
 158
 159     return wined3d_rendertarget_view_create(&desc, &surface->container->resource, parent, parent_ops, view);
 160 }
 161
 162 ULONG CDECL wined3d_shader_resource_view_incref(struct wined3d_shader_resource_view *view)
 163 {
 164     ULONG refcount = InterlockedIncrement(&view->refcount);
 165
 166     TRACE("%p increasing refcount to %u.\n", view, refcount);
 167
 168     return refcount;
 169 }
 170
 171 ULONG CDECL wined3d_shader_resource_view_decref(struct wined3d_shader_resource_view *view)
 172 {
 173     ULONG refcount = InterlockedDecrement(&view->refcount);
 174
 175     TRACE("%p decreasing refcount to %u.\n", view, refcount);
 176
 177     if (!refcount)
 178     {
 179         /* Call wined3d_object_destroyed() before releasing the resource,
 180          * since releasing the resource may end up destroying the parent. */
 181         view->parent_ops->wined3d_object_destroyed(view->parent);
 182         wined3d_resource_decref(view->resource);
 183         HeapFree(GetProcessHeap(), 0, view);
 184     }
 185
 186     return refcount;
 187 }
 188
 189 void * CDECL wined3d_shader_resource_view_get_parent(const struct wined3d_shader_resource_view *view)
 190 {
 191     TRACE("view %p.\n", view);
 192
 193     return view->parent;
 194 }
 195
 196 HRESULT CDECL wined3d_shader_resource_view_create(struct wined3d_resource *resource, void *parent,
 197         const struct wined3d_parent_ops *parent_ops, struct wined3d_shader_resource_view **view)
 198 {
 199     struct wined3d_shader_resource_view *object;
 200
 201     TRACE("parent %p, parent_ops %p, view %p.\n", parent, parent_ops, view);
 202
 203     if (!(object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object))))
 204         return E_OUTOFMEMORY;
 205
 206     object->refcount = 1;
 207     object->resource = resource;
 208     wined3d_resource_incref(resource);
 209     object->parent = parent;
 210     object->parent_ops = parent_ops;
 211
 212     TRACE("Created shader resource view %p.\n", object);
 213     *view = object;
 214
 215     return WINED3D_OK;
 216 }