src/gallium/state_trackers/va/buffer.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2010 Thomas Balling Sørensen & Orasanu Lucian.
   4  * Copyright 2014 Advanced Micro Devices, Inc.
   5  * All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the
   9  * "Software"), to deal in the Software without restriction, including
  10  * without limitation the rights to use, copy, modify, merge, publish,
  11  * distribute, sub license, and/or sell copies of the Software, and to
  12  * permit persons to whom the Software is furnished to do so, subject to
  13  * the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the
  16  * next paragraph) shall be included in all copies or substantial portions
  17  * of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  22  * IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR
  23  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  24  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  25  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26  *
  27  **************************************************************************/
  28
  29 #include "util/u_memory.h"
  30 #include "util/u_handle_table.h"
  31
  32 #include "va_private.h"
  33
  34 VAStatus
  35 vlVaCreateBuffer(VADriverContextP ctx, VAContextID context, VABufferType type,
  36                  unsigned int size, unsigned int num_elements, void *data,
  37                  VABufferID *buf_id)
  38 {
  39    vlVaBuffer *buf;
  40
  41    if (!ctx)
  42       return VA_STATUS_ERROR_INVALID_CONTEXT;
  43
  44    buf = CALLOC(1, sizeof(vlVaBuffer));
  45    if (!buf)
  46       return VA_STATUS_ERROR_ALLOCATION_FAILED;
  47
  48    buf->type = type;
  49    buf->size = size;
  50    buf->num_elements = num_elements;
  51    buf->data = MALLOC(size * num_elements);
  52
  53    if (!buf->data) {
  54       FREE(buf);
  55       return VA_STATUS_ERROR_ALLOCATION_FAILED;
  56    }
  57
  58    if (data)
  59       memcpy(buf->data, data, size * num_elements);
  60
  61    *buf_id = handle_table_add(VL_VA_DRIVER(ctx)->htab, buf);
  62
  63    return VA_STATUS_SUCCESS;
  64 }
  65
  66 VAStatus
  67 vlVaBufferSetNumElements(VADriverContextP ctx, VABufferID buf_id,
  68                          unsigned int num_elements)
  69 {
  70    vlVaBuffer *buf;
  71
  72    if (!ctx)
  73       return VA_STATUS_ERROR_INVALID_CONTEXT;
  74
  75    buf = handle_table_get(VL_VA_DRIVER(ctx)->htab, buf_id);
  76    if (!buf)
  77       return VA_STATUS_ERROR_INVALID_BUFFER;
  78
  79    buf->data = REALLOC(buf->data, buf->size * buf->num_elements,
  80                        buf->size * num_elements);
  81    buf->num_elements = num_elements;
  82
  83    if (!buf->data)
  84       return VA_STATUS_ERROR_ALLOCATION_FAILED;
  85
  86    return VA_STATUS_SUCCESS;
  87 }
  88
  89 VAStatus
  90 vlVaMapBuffer(VADriverContextP ctx, VABufferID buf_id, void **pbuff)
  91 {
  92    vlVaBuffer *buf;
  93
  94    if (!ctx)
  95       return VA_STATUS_ERROR_INVALID_CONTEXT;
  96
  97    if (!pbuff)
  98       return VA_STATUS_ERROR_INVALID_PARAMETER;
  99
 100    buf = handle_table_get(VL_VA_DRIVER(ctx)->htab, buf_id);
 101    if (!buf)
 102       return VA_STATUS_ERROR_INVALID_BUFFER;
 103
 104    *pbuff = buf->data;
 105
 106    return VA_STATUS_SUCCESS;
 107 }
 108
 109 VAStatus
 110 vlVaUnmapBuffer(VADriverContextP ctx, VABufferID buf_id)
 111 {
 112    vlVaBuffer *buf;
 113
 114    if (!ctx)
 115       return VA_STATUS_ERROR_INVALID_CONTEXT;
 116
 117    buf = handle_table_get(VL_VA_DRIVER(ctx)->htab, buf_id);
 118    if (!buf)
 119       return VA_STATUS_ERROR_INVALID_BUFFER;
 120
 121    /* Nothing to do here */
 122
 123    return VA_STATUS_SUCCESS;
 124 }
 125
 126 VAStatus
 127 vlVaDestroyBuffer(VADriverContextP ctx, VABufferID buf_id)
 128 {
 129    vlVaBuffer *buf;
 130
 131    if (!ctx)
 132       return VA_STATUS_ERROR_INVALID_CONTEXT;
 133
 134    buf = handle_table_get(VL_VA_DRIVER(ctx)->htab, buf_id);
 135    if (!buf)
 136       return VA_STATUS_ERROR_INVALID_BUFFER;
 137
 138    FREE(buf->data);
 139    FREE(buf);
 140    handle_table_remove(VL_VA_DRIVER(ctx)->htab, buf_id);
 141
 142    return VA_STATUS_SUCCESS;
 143 }
 144
 145 VAStatus
 146 vlVaBufferInfo(VADriverContextP ctx, VABufferID buf_id, VABufferType *type,
 147                unsigned int *size, unsigned int *num_elements)
 148 {
 149    vlVaBuffer *buf;
 150
 151    if (!ctx)
 152       return VA_STATUS_ERROR_INVALID_CONTEXT;
 153
 154    buf = handle_table_get(VL_VA_DRIVER(ctx)->htab, buf_id);
 155    if (!buf)
 156       return VA_STATUS_ERROR_INVALID_BUFFER;
 157
 158    *type = buf->type;
 159    *size = buf->size;
 160    *num_elements = buf->num_elements;
 161
 162    return VA_STATUS_SUCCESS;
 163 }