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/*
* Copyright © 2020 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.
*
*/
#include <sys/ioctl.h>
#include "igt.h"
#include "igt_x86.h"
#include "rendercopy_bufmgr.h"
/**
* SECTION:rendercopy_bufmgr
* @short_description: Render copy buffer manager
* @title: Render copy bufmgr
* @include: igt.h
*
* # Rendercopy buffer manager
*
* Rendercopy depends on libdrm and igt_buf, so some middle layer to intel_buf
* and buf_ops is required.
*
* |[<!-- language="c" -->
* struct rendercopy_bufmgr *bmgr;
* ...
* bmgr = rendercopy_bufmgr_create(fd, bufmgr);
* ...
* igt_buf_init(bmgr, &buf, 512, 512, 32, I915_TILING_X, false);
* ...
* linear_to_igt_buf(bmgr, &buf, linear);
* ...
* igt_buf_to_linear(bmgr, &buf, linear);
* ...
* rendercopy_bufmgr_destroy(bmgr);
* ]|
*/
struct rendercopy_bufmgr {
int fd;
drm_intel_bufmgr *bufmgr;
struct buf_ops *bops;
};
static void __igt_buf_to_intel_buf(struct igt_buf *buf, struct intel_buf *ibuf)
{
ibuf->handle = buf->bo->handle;
ibuf->stride = buf->surface[0].stride;
ibuf->tiling = buf->tiling;
ibuf->bpp = buf->bpp;
ibuf->size = buf->surface[0].size;
ibuf->compression = buf->compression;
ibuf->aux.offset = buf->ccs[0].offset;
ibuf->aux.stride = buf->ccs[0].stride;
}
void igt_buf_to_linear(struct rendercopy_bufmgr *bmgr, struct igt_buf *buf,
uint32_t *linear)
{
struct intel_buf ibuf;
__igt_buf_to_intel_buf(buf, &ibuf);
intel_buf_to_linear(bmgr->bops, &ibuf, linear);
}
void linear_to_igt_buf(struct rendercopy_bufmgr *bmgr, struct igt_buf *buf,
uint32_t *linear)
{
struct intel_buf ibuf;
__igt_buf_to_intel_buf(buf, &ibuf);
linear_to_intel_buf(bmgr->bops, &ibuf, linear);
}
struct rendercopy_bufmgr *
rendercopy_bufmgr_create(int fd, drm_intel_bufmgr *bufmgr)
{
struct buf_ops *bops;
struct rendercopy_bufmgr *bmgr;
igt_assert(bufmgr);
bops = buf_ops_create(fd);
igt_assert(bops);
bmgr = calloc(1, sizeof(*bmgr));
igt_assert(bmgr);
bmgr->fd = fd;
bmgr->bufmgr = bufmgr;
bmgr->bops = bops;
return bmgr;
}
void rendercopy_bufmgr_destroy(struct rendercopy_bufmgr *bmgr)
{
igt_assert(bmgr);
igt_assert(bmgr->bops);
buf_ops_destroy(bmgr->bops);
free(bmgr);
}
bool rendercopy_bufmgr_set_software_tiling(struct rendercopy_bufmgr *bmgr,
uint32_t tiling,
bool use_software_tiling)
{
return buf_ops_set_software_tiling(bmgr->bops, tiling,
use_software_tiling);
}
void igt_buf_init(struct rendercopy_bufmgr *bmgr, struct igt_buf *buf,
int width, int height, int bpp,
uint32_t tiling, uint32_t compression)
{
uint32_t devid = intel_get_drm_devid(bmgr->fd);
int generation= intel_gen(devid);
struct intel_buf ibuf;
int size;
memset(buf, 0, sizeof(*buf));
buf->surface[0].stride = ALIGN(width * (bpp / 8), 128);
buf->surface[0].size = buf->surface[0].stride * height;
buf->tiling = tiling;
buf->bpp = bpp;
buf->compression = compression;
size = buf->surface[0].stride * ALIGN(height, 32);
if (compression) {
int ccs_width = igt_buf_intel_ccs_width(generation, buf);
int ccs_height = igt_buf_intel_ccs_height(generation, buf);
buf->ccs[0].offset = buf->surface[0].stride * ALIGN(height, 32);
buf->ccs[0].stride = ccs_width;
size = buf->ccs[0].offset + ccs_width * ccs_height;
}
buf->bo = drm_intel_bo_alloc(bmgr->bufmgr, "", size, 4096);
intel_buf_init_using_handle(bmgr->bops,
buf->bo->handle,
&ibuf,
width, height, bpp, tiling,
compression);
buf->ccs[0].offset = ibuf.aux.offset;
buf->ccs[0].stride = ibuf.aux.stride;
}
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