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/*
* SPDX-License-Identifier: GPL-2.0-or-later
*
* QemuDmaBuf struct and helpers used for accessing its data
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "ui/dmabuf.h"
struct QemuDmaBuf {
int fd[DMABUF_MAX_PLANES];
uint32_t width;
uint32_t height;
uint32_t offset[DMABUF_MAX_PLANES];
uint32_t stride[DMABUF_MAX_PLANES];
uint32_t num_planes;
uint32_t fourcc;
uint64_t modifier;
uint32_t texture;
uint32_t x;
uint32_t y;
uint32_t backing_width;
uint32_t backing_height;
bool y0_top;
void *sync;
int fence_fd;
bool allow_fences;
bool draw_submitted;
};
QemuDmaBuf *qemu_dmabuf_new(uint32_t width, uint32_t height,
const uint32_t *offset, const uint32_t *stride,
uint32_t x, uint32_t y,
uint32_t backing_width, uint32_t backing_height,
uint32_t fourcc, uint64_t modifier,
const int32_t *dmabuf_fd, uint32_t num_planes,
bool allow_fences, bool y0_top) {
QemuDmaBuf *dmabuf;
assert(num_planes > 0 && num_planes <= DMABUF_MAX_PLANES);
dmabuf = g_new0(QemuDmaBuf, 1);
dmabuf->width = width;
dmabuf->height = height;
memcpy(dmabuf->offset, offset, num_planes * sizeof(*offset));
memcpy(dmabuf->stride, stride, num_planes * sizeof(*stride));
dmabuf->x = x;
dmabuf->y = y;
dmabuf->backing_width = backing_width;
dmabuf->backing_height = backing_height;
dmabuf->fourcc = fourcc;
dmabuf->modifier = modifier;
memcpy(dmabuf->fd, dmabuf_fd, num_planes * sizeof(*dmabuf_fd));
dmabuf->allow_fences = allow_fences;
dmabuf->y0_top = y0_top;
dmabuf->fence_fd = -1;
dmabuf->num_planes = num_planes;
return dmabuf;
}
void qemu_dmabuf_free(QemuDmaBuf *dmabuf)
{
if (dmabuf == NULL) {
return;
}
g_free(dmabuf);
}
const int *qemu_dmabuf_get_fds(QemuDmaBuf *dmabuf, int *nfds)
{
assert(dmabuf != NULL);
if (nfds) {
*nfds = ARRAY_SIZE(dmabuf->fd);
}
return dmabuf->fd;
}
void qemu_dmabuf_dup_fds(QemuDmaBuf *dmabuf, int *fds, int nfds)
{
int i;
assert(dmabuf != NULL);
assert(nfds >= dmabuf->num_planes);
for (i = 0; i < dmabuf->num_planes; i++) {
fds[i] = dmabuf->fd[i] >= 0 ? dup(dmabuf->fd[i]) : -1;
}
}
void qemu_dmabuf_close(QemuDmaBuf *dmabuf)
{
int i;
assert(dmabuf != NULL);
for (i = 0; i < dmabuf->num_planes; i++) {
if (dmabuf->fd[i] >= 0) {
close(dmabuf->fd[i]);
dmabuf->fd[i] = -1;
}
}
}
uint32_t qemu_dmabuf_get_width(QemuDmaBuf *dmabuf)
{
assert(dmabuf != NULL);
return dmabuf->width;
}
uint32_t qemu_dmabuf_get_height(QemuDmaBuf *dmabuf)
{
assert(dmabuf != NULL);
return dmabuf->height;
}
const uint32_t *qemu_dmabuf_get_offsets(QemuDmaBuf *dmabuf, int *noffsets)
{
assert(dmabuf != NULL);
if (noffsets) {
*noffsets = ARRAY_SIZE(dmabuf->offset);
}
return dmabuf->offset;
}
const uint32_t *qemu_dmabuf_get_strides(QemuDmaBuf *dmabuf, int *nstrides)
{
assert(dmabuf != NULL);
if (nstrides) {
*nstrides = ARRAY_SIZE(dmabuf->stride);
}
return dmabuf->stride;
}
uint32_t qemu_dmabuf_get_num_planes(QemuDmaBuf *dmabuf)
{
assert(dmabuf != NULL);
return dmabuf->num_planes;
}
uint32_t qemu_dmabuf_get_fourcc(QemuDmaBuf *dmabuf)
{
assert(dmabuf != NULL);
return dmabuf->fourcc;
}
uint64_t qemu_dmabuf_get_modifier(QemuDmaBuf *dmabuf)
{
assert(dmabuf != NULL);
return dmabuf->modifier;
}
uint32_t qemu_dmabuf_get_texture(QemuDmaBuf *dmabuf)
{
assert(dmabuf != NULL);
return dmabuf->texture;
}
uint32_t qemu_dmabuf_get_x(QemuDmaBuf *dmabuf)
{
assert(dmabuf != NULL);
return dmabuf->x;
}
uint32_t qemu_dmabuf_get_y(QemuDmaBuf *dmabuf)
{
assert(dmabuf != NULL);
return dmabuf->y;
}
uint32_t qemu_dmabuf_get_backing_width(QemuDmaBuf *dmabuf)
{
assert(dmabuf != NULL);
return dmabuf->backing_width;
}
uint32_t qemu_dmabuf_get_backing_height(QemuDmaBuf *dmabuf)
{
assert(dmabuf != NULL);
return dmabuf->backing_height;
}
bool qemu_dmabuf_get_y0_top(QemuDmaBuf *dmabuf)
{
assert(dmabuf != NULL);
return dmabuf->y0_top;
}
void *qemu_dmabuf_get_sync(QemuDmaBuf *dmabuf)
{
assert(dmabuf != NULL);
return dmabuf->sync;
}
int32_t qemu_dmabuf_get_fence_fd(QemuDmaBuf *dmabuf)
{
assert(dmabuf != NULL);
return dmabuf->fence_fd;
}
bool qemu_dmabuf_get_allow_fences(QemuDmaBuf *dmabuf)
{
assert(dmabuf != NULL);
return dmabuf->allow_fences;
}
bool qemu_dmabuf_get_draw_submitted(QemuDmaBuf *dmabuf)
{
assert(dmabuf != NULL);
return dmabuf->draw_submitted;
}
void qemu_dmabuf_set_texture(QemuDmaBuf *dmabuf, uint32_t texture)
{
assert(dmabuf != NULL);
dmabuf->texture = texture;
}
void qemu_dmabuf_set_fence_fd(QemuDmaBuf *dmabuf, int32_t fence_fd)
{
assert(dmabuf != NULL);
dmabuf->fence_fd = fence_fd;
}
void qemu_dmabuf_set_sync(QemuDmaBuf *dmabuf, void *sync)
{
assert(dmabuf != NULL);
dmabuf->sync = sync;
}
void qemu_dmabuf_set_draw_submitted(QemuDmaBuf *dmabuf, bool draw_submitted)
{
assert(dmabuf != NULL);
dmabuf->draw_submitted = draw_submitted;
}
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