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/*
* vdpau_buffer.c - VDPAU backend for VA-API (VA buffers)
*
* vdpau-video (C) 2009-2010 Splitted-Desktop Systems
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "sysdeps.h"
#include "vdpau_buffer.h"
#include "vdpau_driver.h"
#include "vdpau_video.h"
#include "vdpau_dump.h"
#include "utils.h"
#define DEBUG 1
#include "debug.h"
// Create VA buffer object
object_buffer_p
create_va_buffer(
vdpau_driver_data_t *driver_data,
VAContextID context,
VABufferType buffer_type,
unsigned int num_elements,
unsigned int size
)
{
VABufferID buffer_id;
object_buffer_p obj_buffer;
buffer_id = object_heap_allocate(&driver_data->buffer_heap);
if (buffer_id == VA_INVALID_BUFFER)
return NULL;
obj_buffer = VDPAU_BUFFER(buffer_id);
if (!obj_buffer)
return NULL;
obj_buffer->va_context = context;
obj_buffer->type = buffer_type;
obj_buffer->max_num_elements = num_elements;
obj_buffer->num_elements = num_elements;
obj_buffer->buffer_size = size * num_elements;
obj_buffer->buffer_data = malloc(obj_buffer->buffer_size);
obj_buffer->mtime = 0;
if (!obj_buffer->buffer_data) {
destroy_va_buffer(driver_data, obj_buffer);
return NULL;
}
return obj_buffer;
}
// Destroy VA buffer object
void
destroy_va_buffer(
vdpau_driver_data_t *driver_data,
object_buffer_p obj_buffer
)
{
if (!obj_buffer)
return;
if (obj_buffer->buffer_data) {
free(obj_buffer->buffer_data);
obj_buffer->buffer_data = NULL;
}
object_heap_free(&driver_data->buffer_heap, (object_base_p)obj_buffer);
}
// Schedule VA buffer object for destruction
void
schedule_destroy_va_buffer(
vdpau_driver_data_p driver_data,
object_buffer_p obj_buffer
)
{
object_context_p obj_context = VDPAU_CONTEXT(obj_buffer->va_context);
if (!obj_context)
return;
realloc_buffer(
&obj_context->dead_buffers,
&obj_context->dead_buffers_count_max,
16 + obj_context->dead_buffers_count,
sizeof(*obj_context->dead_buffers)
);
ASSERT(obj_context->dead_buffers);
obj_context->dead_buffers[obj_context->dead_buffers_count] = obj_buffer->base.id;
obj_context->dead_buffers_count++;
}
// vaCreateBuffer
VAStatus
vdpau_CreateBuffer(
VADriverContextP ctx,
VAContextID context,
VABufferType type,
unsigned int size,
unsigned int num_elements,
void *data,
VABufferID *buf_id
)
{
VDPAU_DRIVER_DATA_INIT;
if (buf_id)
*buf_id = VA_INVALID_BUFFER;
/* Validate type */
switch (type) {
case VAPictureParameterBufferType:
case VAIQMatrixBufferType:
case VASliceParameterBufferType:
case VASliceDataBufferType:
case VABitPlaneBufferType:
case VAImageBufferType:
/* Ok */
break;
default:
D(bug("ERROR: unsupported buffer type %d\n", type));
return VA_STATUS_ERROR_UNSUPPORTED_BUFFERTYPE;
}
object_buffer_p obj_buffer;
obj_buffer = create_va_buffer(driver_data, context, type, num_elements, size);
if (!obj_buffer)
return VA_STATUS_ERROR_ALLOCATION_FAILED;
if (data)
memcpy(obj_buffer->buffer_data, data, obj_buffer->buffer_size);
if (buf_id)
*buf_id = obj_buffer->base.id;
return VA_STATUS_SUCCESS;
}
// vaDestroyBuffer
VAStatus
vdpau_DestroyBuffer(
VADriverContextP ctx,
VABufferID buffer_id
)
{
VDPAU_DRIVER_DATA_INIT;
object_buffer_p obj_buffer = VDPAU_BUFFER(buffer_id);
if (obj_buffer)
destroy_va_buffer(driver_data, obj_buffer);
return VA_STATUS_SUCCESS;
}
// vaBufferSetNumElements
VAStatus
vdpau_BufferSetNumElements(
VADriverContextP ctx,
VABufferID buf_id,
unsigned int num_elements
)
{
VDPAU_DRIVER_DATA_INIT;
object_buffer_p obj_buffer = VDPAU_BUFFER(buf_id);
if (!obj_buffer)
return VA_STATUS_ERROR_INVALID_BUFFER;
if (num_elements < 0 || num_elements > obj_buffer->max_num_elements)
return VA_STATUS_ERROR_UNKNOWN;
obj_buffer->num_elements = num_elements;
return VA_STATUS_SUCCESS;
}
// vaMapBuffer
VAStatus
vdpau_MapBuffer(
VADriverContextP ctx,
VABufferID buf_id,
void **pbuf
)
{
VDPAU_DRIVER_DATA_INIT;
object_buffer_p obj_buffer = VDPAU_BUFFER(buf_id);
if (!obj_buffer)
return VA_STATUS_ERROR_INVALID_BUFFER;
if (pbuf)
*pbuf = obj_buffer->buffer_data;
if (obj_buffer->buffer_data == NULL)
return VA_STATUS_ERROR_UNKNOWN;
++obj_buffer->mtime;
return VA_STATUS_SUCCESS;
}
// vaUnmapBuffer
VAStatus
vdpau_UnmapBuffer(
VADriverContextP ctx,
VABufferID buf_id
)
{
VDPAU_DRIVER_DATA_INIT;
object_buffer_p obj_buffer = VDPAU_BUFFER(buf_id);
if (!obj_buffer)
return VA_STATUS_ERROR_INVALID_BUFFER;
++obj_buffer->mtime;
return VA_STATUS_SUCCESS;
}
// vaBufferInfo
VAStatus
vdpau_BufferInfo(
VADriverContextP ctx,
VAContextID context,
VABufferID buf_id,
VABufferType *type,
unsigned int *size,
unsigned int *num_elements
)
{
VDPAU_DRIVER_DATA_INIT;
object_buffer_p obj_buffer = VDPAU_BUFFER(buf_id);
if (!obj_buffer)
return VA_STATUS_ERROR_INVALID_BUFFER;
if (type)
*type = obj_buffer->type;
if (size)
*size = obj_buffer->buffer_size / obj_buffer->num_elements;
if (num_elements)
*num_elements = obj_buffer->num_elements;
return VA_STATUS_SUCCESS;
}
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