src/gallium/drivers/identity/id_objects.c

   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_memory.h"
  29
  30 #include "id_public.h"
  31 #include "id_screen.h"
  32 #include "id_objects.h"
  33
  34 struct pipe_buffer *
  35 identity_buffer_create(struct identity_screen *id_screen,
  36                        struct pipe_buffer *buffer)
  37 {
  38    struct identity_buffer *id_buffer;
  39
  40    if(!buffer)
  41       goto error;
  42
  43    assert(buffer->screen == id_screen->screen);
  44
  45    id_buffer = CALLOC_STRUCT(identity_buffer);
  46    if(!id_buffer)
  47       goto error;
  48
  49    memcpy(&id_buffer->base, buffer, sizeof(struct pipe_buffer));
  50
  51    pipe_reference_init(&id_buffer->base.reference, 1);
  52    id_buffer->base.screen = &id_screen->base;
  53    id_buffer->buffer = buffer;
  54
  55    return &id_buffer->base;
  56
  57 error:
  58    pipe_buffer_reference(&buffer, NULL);
  59    return NULL;
  60 }
  61
  62 void
  63 identity_buffer_destroy(struct identity_buffer *id_buffer)
  64 {
  65    pipe_buffer_reference(&id_buffer->buffer, NULL);
  66    FREE(id_buffer);
  67 }
  68
  69
  70 struct pipe_texture *
  71 identity_texture_create(struct identity_screen *id_screen,
  72                         struct pipe_texture *texture)
  73 {
  74    struct identity_texture *id_texture;
  75
  76    if(!texture)
  77       goto error;
  78
  79    assert(texture->screen == id_screen->screen);
  80
  81    id_texture = CALLOC_STRUCT(identity_texture);
  82    if(!id_texture)
  83       goto error;
  84
  85    memcpy(&id_texture->base, texture, sizeof(struct pipe_texture));
  86
  87    pipe_reference_init(&id_texture->base.reference, 1);
  88    id_texture->base.screen = &id_screen->base;
  89    id_texture->texture = texture;
  90
  91    return &id_texture->base;
  92
  93 error:
  94    pipe_texture_reference(&texture, NULL);
  95    return NULL;
  96 }
  97
  98 void
  99 identity_texture_destroy(struct identity_texture *id_texture)
 100 {
 101    pipe_texture_reference(&id_texture->texture, NULL);
 102    FREE(id_texture);
 103 }
 104
 105
 106 struct pipe_surface *
 107 identity_surface_create(struct identity_texture *id_texture,
 108                         struct pipe_surface *surface)
 109 {
 110    struct identity_surface *id_surface;
 111
 112    if(!surface)
 113       goto error;
 114
 115    assert(surface->texture == id_texture->texture);
 116
 117    id_surface = CALLOC_STRUCT(identity_surface);
 118    if(!id_surface)
 119       goto error;
 120
 121    memcpy(&id_surface->base, surface, sizeof(struct pipe_surface));
 122
 123    pipe_reference_init(&id_surface->base.reference, 1);
 124    id_surface->base.texture = NULL;
 125    pipe_texture_reference(&id_surface->base.texture, &id_texture->base);
 126    id_surface->surface = surface;
 127
 128    return &id_surface->base;
 129
 130 error:
 131    pipe_surface_reference(&surface, NULL);
 132    return NULL;
 133 }
 134
 135 void
 136 identity_surface_destroy(struct identity_surface *id_surface)
 137 {
 138    pipe_texture_reference(&id_surface->base.texture, NULL);
 139    pipe_surface_reference(&id_surface->surface, NULL);
 140    FREE(id_surface);
 141 }
 142
 143
 144 struct pipe_transfer *
 145 identity_transfer_create(struct identity_texture *id_texture,
 146                          struct pipe_transfer *transfer)
 147 {
 148    struct identity_transfer *id_transfer;
 149
 150    if(!transfer)
 151       goto error;
 152
 153    assert(transfer->texture == id_texture->texture);
 154
 155    id_transfer = CALLOC_STRUCT(identity_transfer);
 156    if(!id_transfer)
 157       goto error;
 158
 159    memcpy(&id_transfer->base, transfer, sizeof(struct pipe_transfer));
 160
 161    id_transfer->base.texture = NULL;
 162    pipe_texture_reference(&id_transfer->base.texture, &id_texture->base);
 163    id_transfer->transfer = transfer;
 164    assert(id_transfer->base.texture == &id_texture->base);
 165
 166    return &id_transfer->base;
 167
 168 error:
 169    transfer->texture->screen->tex_transfer_destroy(transfer);
 170    return NULL;
 171 }
 172
 173 void
 174 identity_transfer_destroy(struct identity_transfer *id_transfer)
 175 {
 176    struct identity_screen *id_screen = identity_screen(id_transfer->base.texture->screen);
 177    struct pipe_screen *screen = id_screen->screen;
 178
 179    pipe_texture_reference(&id_transfer->base.texture, NULL);
 180    screen->tex_transfer_destroy(id_transfer->transfer);
 181    FREE(id_transfer);
 182 }
 183
 184 struct pipe_video_surface *
 185 identity_video_surface_create(struct identity_screen *id_screen,
 186                               struct pipe_video_surface *video_surface)
 187 {
 188    struct identity_video_surface *id_video_surface;
 189
 190    if (!video_surface) {
 191       goto error;
 192    }
 193
 194    assert(video_surface->screen == id_screen->screen);
 195
 196    id_video_surface = CALLOC_STRUCT(identity_video_surface);
 197    if (!id_video_surface) {
 198       goto error;
 199    }
 200
 201    memcpy(&id_video_surface->base,
 202           video_surface,
 203           sizeof(struct pipe_video_surface));
 204
 205    pipe_reference_init(&id_video_surface->base.reference, 1);
 206    id_video_surface->base.screen = &id_screen->base;
 207    id_video_surface->video_surface = video_surface;
 208
 209    return &id_video_surface->base;
 210
 211 error:
 212    pipe_video_surface_reference(&video_surface, NULL);
 213    return NULL;
 214 }
 215
 216 void
 217 identity_video_surface_destroy(struct identity_video_surface *id_video_surface)
 218 {
 219    pipe_video_surface_reference(&id_video_surface->video_surface, NULL);
 220    FREE(id_video_surface);
 221 }