drm/libdrm/dri_bufmgr.c

142 lines
3.2 KiB
C

/*
* Copyright © 2007 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Authors:
* Eric Anholt <eric@anholt.net>
*
*/
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include "dri_bufmgr.h"
/** @file dri_bufmgr.c
*
* Convenience functions for buffer management methods.
*/
dri_bo *
dri_bo_alloc(dri_bufmgr *bufmgr, const char *name, unsigned long size,
unsigned int alignment)
{
return bufmgr->bo_alloc(bufmgr, name, size, alignment);
}
void
dri_bo_reference(dri_bo *bo)
{
bo->bufmgr->bo_reference(bo);
}
void
dri_bo_unreference(dri_bo *bo)
{
if (bo == NULL)
return;
bo->bufmgr->bo_unreference(bo);
}
int
dri_bo_map(dri_bo *buf, int write_enable)
{
return buf->bufmgr->bo_map(buf, write_enable);
}
int
dri_bo_unmap(dri_bo *buf)
{
return buf->bufmgr->bo_unmap(buf);
}
int
dri_bo_subdata(dri_bo *bo, unsigned long offset,
unsigned long size, const void *data)
{
int ret;
if (bo->bufmgr->bo_subdata)
return bo->bufmgr->bo_subdata(bo, offset, size, data);
if (size == 0 || data == NULL)
return 0;
ret = dri_bo_map(bo, 1);
if (ret)
return ret;
memcpy((unsigned char *)bo->virtual + offset, data, size);
dri_bo_unmap(bo);
return 0;
}
int
dri_bo_get_subdata(dri_bo *bo, unsigned long offset,
unsigned long size, void *data)
{
int ret;
if (bo->bufmgr->bo_subdata)
return bo->bufmgr->bo_get_subdata(bo, offset, size, data);
if (size == 0 || data == NULL)
return 0;
ret = dri_bo_map(bo, 0);
if (ret)
return ret;
memcpy(data, (unsigned char *)bo->virtual + offset, size);
dri_bo_unmap(bo);
return 0;
}
void
dri_bo_wait_rendering(dri_bo *bo)
{
bo->bufmgr->bo_wait_rendering(bo);
}
void
dri_bufmgr_destroy(dri_bufmgr *bufmgr)
{
bufmgr->destroy(bufmgr);
}
void *dri_process_relocs(dri_bo *batch_buf)
{
return batch_buf->bufmgr->process_relocs(batch_buf);
}
void dri_post_submit(dri_bo *batch_buf)
{
batch_buf->bufmgr->post_submit(batch_buf);
}
void
dri_bufmgr_set_debug(dri_bufmgr *bufmgr, int enable_debug)
{
bufmgr->debug = enable_debug;
}
int
dri_bufmgr_check_aperture_space(dri_bo *bo)
{
return bo->bufmgr->check_aperture_space(bo);
}