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    buf->data = REALLOC(buf->data, buf->size * buf->num_elements,
  77                        buf->size * num_elements);
  78    buf->num_elements = num_elements;
  79
  80    if (!buf->data)
  81       return VA_STATUS_ERROR_ALLOCATION_FAILED;
  82
  83    return VA_STATUS_SUCCESS;
  84 }
  85
  86 VAStatus
  87 vlVaMapBuffer(VADriverContextP ctx, VABufferID buf_id, void **pbuff)
  88 {
  89    vlVaBuffer *buf;
  90
  91    if (!ctx)
  92       return VA_STATUS_ERROR_INVALID_CONTEXT;
  93
  94    buf = handle_table_get(VL_VA_DRIVER(ctx)->htab, buf_id);
  95    if (!buf)
  96       return VA_STATUS_ERROR_INVALID_BUFFER;
  97
  98    *pbuff = buf->data;
  99
 100    return VA_STATUS_SUCCESS;
 101 }
 102
 103 VAStatus
 104 vlVaUnmapBuffer(VADriverContextP ctx, VABufferID buf_id)
 105 {
 106    vlVaBuffer *buf;
 107
 108    if (!ctx)
 109       return VA_STATUS_ERROR_INVALID_CONTEXT;
 110
 111    buf = handle_table_get(VL_VA_DRIVER(ctx)->htab, buf_id);
 112    if (!buf)
 113       return VA_STATUS_ERROR_INVALID_BUFFER;
 114
 115    /* Nothing to do here */
 116
 117    return VA_STATUS_SUCCESS;
 118 }
 119
 120 VAStatus
 121 vlVaDestroyBuffer(VADriverContextP ctx, VABufferID buf_id)
 122 {
 123    vlVaBuffer *buf;
 124
 125    if (!ctx)
 126       return VA_STATUS_ERROR_INVALID_CONTEXT;
 127
 128    buf = handle_table_get(VL_VA_DRIVER(ctx)->htab, buf_id);
 129    if (!buf)
 130       return VA_STATUS_ERROR_INVALID_BUFFER;
 131
 132    FREE(buf->data);
 133    FREE(buf);
 134    handle_table_remove(VL_VA_DRIVER(ctx)->htab, buf_id);
 135
 136    return VA_STATUS_SUCCESS;
 137 }
 138
 139 VAStatus
 140 vlVaBufferInfo(VADriverContextP ctx, VABufferID buf_id, VABufferType *type,
 141                unsigned int *size, unsigned int *num_elements)
 142 {
 143    vlVaBuffer *buf;
 144
 145    if (!ctx)
 146       return VA_STATUS_ERROR_INVALID_CONTEXT;
 147
 148    buf = handle_table_get(VL_VA_DRIVER(ctx)->htab, buf_id);
 149    if (!buf)
 150       return VA_STATUS_ERROR_INVALID_BUFFER;
 151
 152    *type = buf->type;
 153    *size = buf->size;
 154    *num_elements = buf->num_elements;
 155
 156    return VA_STATUS_SUCCESS;
 157 }