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mpv/video/out/gpu/hwdec.c

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/*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* mpv 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stddef.h>
#include <string.h>
#include "config.h"
#include "common/common.h"
#include "common/msg.h"
#include "options/m_config.h"
#include "hwdec.h"
extern const struct ra_hwdec_driver ra_hwdec_vaapi;
extern const struct ra_hwdec_driver ra_hwdec_videotoolbox;
extern const struct ra_hwdec_driver ra_hwdec_vdpau;
extern const struct ra_hwdec_driver ra_hwdec_dxva2egl;
extern const struct ra_hwdec_driver ra_hwdec_d3d11egl;
extern const struct ra_hwdec_driver ra_hwdec_dxva2gldx;
extern const struct ra_hwdec_driver ra_hwdec_d3d11va;
extern const struct ra_hwdec_driver ra_hwdec_dxva2dxgi;
extern const struct ra_hwdec_driver ra_hwdec_cuda;
extern const struct ra_hwdec_driver ra_hwdec_drmprime;
extern const struct ra_hwdec_driver ra_hwdec_drmprime_overlay;
extern const struct ra_hwdec_driver ra_hwdec_aimagereader;
extern const struct ra_hwdec_driver ra_hwdec_vulkan;
const struct ra_hwdec_driver *const ra_hwdec_drivers[] = {
#if HAVE_VAAPI
&ra_hwdec_vaapi,
#endif
#if HAVE_VIDEOTOOLBOX_GL || HAVE_IOS_GL || HAVE_VIDEOTOOLBOX_PL
&ra_hwdec_videotoolbox,
#endif
#if HAVE_D3D_HWACCEL
#if HAVE_EGL_ANGLE
&ra_hwdec_d3d11egl,
#if HAVE_D3D9_HWACCEL
&ra_hwdec_dxva2egl,
#endif
#endif
#if HAVE_D3D11
&ra_hwdec_d3d11va,
#if HAVE_D3D9_HWACCEL
&ra_hwdec_dxva2dxgi,
#endif
#endif
#endif
#if HAVE_GL_DXINTEROP_D3D9
&ra_hwdec_dxva2gldx,
#endif
#if HAVE_CUDA_INTEROP
&ra_hwdec_cuda,
#endif
#if HAVE_VDPAU_GL_X11
&ra_hwdec_vdpau,
#endif
#if HAVE_DRM
&ra_hwdec_drmprime,
&ra_hwdec_drmprime_overlay,
#endif
#if HAVE_ANDROID_MEDIA_NDK
&ra_hwdec_aimagereader,
#endif
#if HAVE_VULKAN_INTEROP
&ra_hwdec_vulkan,
#endif
NULL
};
struct ra_hwdec *ra_hwdec_load_driver(struct ra_ctx *ra_ctx,
struct mp_log *log,
struct mpv_global *global,
struct mp_hwdec_devices *devs,
const struct ra_hwdec_driver *drv,
bool is_auto)
{
struct ra_hwdec *hwdec = talloc(NULL, struct ra_hwdec);
*hwdec = (struct ra_hwdec) {
.driver = drv,
.log = mp_log_new(hwdec, log, drv->name),
.global = global,
.ra_ctx = ra_ctx,
.devs = devs,
.probing = is_auto,
.priv = talloc_zero_size(hwdec, drv->priv_size),
};
mp_verbose(log, "Loading hwdec driver '%s'\n", drv->name);
if (hwdec->driver->init(hwdec) < 0) {
ra_hwdec_uninit(hwdec);
mp_verbose(log, "Loading failed.\n");
return NULL;
}
return hwdec;
}
void ra_hwdec_uninit(struct ra_hwdec *hwdec)
{
if (hwdec)
hwdec->driver->uninit(hwdec);
talloc_free(hwdec);
}
bool ra_hwdec_test_format(struct ra_hwdec *hwdec, int imgfmt)
{
for (int n = 0; hwdec->driver->imgfmts[n]; n++) {
if (hwdec->driver->imgfmts[n] == imgfmt)
return true;
}
return false;
}
struct ra_hwdec_mapper *ra_hwdec_mapper_create(struct ra_hwdec *hwdec,
const struct mp_image_params *params)
{
assert(ra_hwdec_test_format(hwdec, params->imgfmt));
struct ra_hwdec_mapper *mapper = talloc_ptrtype(NULL, mapper);
*mapper = (struct ra_hwdec_mapper){
.owner = hwdec,
.driver = hwdec->driver->mapper,
.log = hwdec->log,
.ra = hwdec->ra_ctx->ra,
.priv = talloc_zero_size(mapper, hwdec->driver->mapper->priv_size),
.src_params = *params,
.dst_params = *params,
};
if (mapper->driver->init(mapper) < 0)
ra_hwdec_mapper_free(&mapper);
return mapper;
}
void ra_hwdec_mapper_free(struct ra_hwdec_mapper **mapper)
{
struct ra_hwdec_mapper *p = *mapper;
if (p) {
ra_hwdec_mapper_unmap(p);
p->driver->uninit(p);
talloc_free(p);
}
*mapper = NULL;
}
void ra_hwdec_mapper_unmap(struct ra_hwdec_mapper *mapper)
{
if (mapper->driver->unmap)
mapper->driver->unmap(mapper);
// Clean up after the image if the mapper didn't already
mp_image_unrefp(&mapper->src);
}
int ra_hwdec_mapper_map(struct ra_hwdec_mapper *mapper, struct mp_image *img)
{
ra_hwdec_mapper_unmap(mapper);
mp_image_setrefp(&mapper->src, img);
if (mapper->driver->map(mapper) < 0) {
ra_hwdec_mapper_unmap(mapper);
return -1;
}
return 0;
}
static int ra_hwdec_validate_opt_full(struct mp_log *log, bool include_modes,
const m_option_t *opt,
struct bstr name, const char **value)
{
struct bstr param = bstr0(*value);
bool help = bstr_equals0(param, "help");
if (help)
mp_info(log, "Available hwdecs:\n");
for (int n = 0; ra_hwdec_drivers[n]; n++) {
const struct ra_hwdec_driver *drv = ra_hwdec_drivers[n];
if (help) {
mp_info(log, " %s\n", drv->name);
} else if (bstr_equals0(param, drv->name)) {
return 1;
}
}
if (help) {
if (include_modes) {
mp_info(log, " auto (behavior depends on context)\n"
" all (load all hwdecs)\n"
" no (do not load any and block loading on demand)\n");
}
return M_OPT_EXIT;
}
if (!param.len)
return 1; // "" is treated specially
if (include_modes &&
(bstr_equals0(param, "all") || bstr_equals0(param, "auto") ||
bstr_equals0(param, "no")))
return 1;
mp_fatal(log, "No hwdec backend named '%.*s' found!\n", BSTR_P(param));
return M_OPT_INVALID;
}
int ra_hwdec_validate_opt(struct mp_log *log, const m_option_t *opt,
struct bstr name, const char **value)
{
return ra_hwdec_validate_opt_full(log, true, opt, name, value);
}
int ra_hwdec_validate_drivers_only_opt(struct mp_log *log,
const m_option_t *opt,
struct bstr name, const char **value)
{
return ra_hwdec_validate_opt_full(log, false, opt, name, value);
}
static void load_add_hwdec(struct ra_hwdec_ctx *ctx, struct mp_hwdec_devices *devs,
const struct ra_hwdec_driver *drv, bool is_auto)
{
// Don't load duplicate hwdecs
for (int j = 0; j < ctx->num_hwdecs; j++) {
if (ctx->hwdecs[j]->driver == drv)
return;
}
struct ra_hwdec *hwdec =
ra_hwdec_load_driver(ctx->ra_ctx, ctx->log, ctx->global, devs, drv, is_auto);
if (hwdec)
MP_TARRAY_APPEND(NULL, ctx->hwdecs, ctx->num_hwdecs, hwdec);
}
static void load_hwdecs_all(struct ra_hwdec_ctx *ctx, struct mp_hwdec_devices *devs)
{
if (!ctx->loading_done) {
for (int n = 0; ra_hwdec_drivers[n]; n++)
load_add_hwdec(ctx, devs, ra_hwdec_drivers[n], true);
ctx->loading_done = true;
}
}
void ra_hwdec_ctx_init(struct ra_hwdec_ctx *ctx, struct mp_hwdec_devices *devs,
const char *type, bool load_all_by_default)
{
assert(ctx->ra_ctx);
/*
* By default, or if the option value is "auto", we will not pre-emptively
* load any interops, and instead allow them to be loaded on-demand.
*
* If the option value is "no", then no interops will be loaded now, and
* no interops will be loaded, even if requested later.
*
* If the option value is "all", then all interops will be loaded now, and
* obviously no interops will need to be loaded later.
*
* Finally, if a specific interop is requested, it will be loaded now, and
* other interops can be loaded, if requested later.
*/
if (!type || !type[0] || strcmp(type, "auto") == 0) {
if (!load_all_by_default)
return;
type = "all";
}
if (strcmp(type, "no") == 0) {
// do nothing, just block further loading
} else if (strcmp(type, "all") == 0) {
load_hwdecs_all(ctx, devs);
} else {
for (int n = 0; ra_hwdec_drivers[n]; n++) {
const struct ra_hwdec_driver *drv = ra_hwdec_drivers[n];
if (strcmp(type, drv->name) == 0) {
load_add_hwdec(ctx, devs, drv, false);
break;
}
}
}
ctx->loading_done = true;
}
void ra_hwdec_ctx_uninit(struct ra_hwdec_ctx *ctx)
{
for (int n = 0; n < ctx->num_hwdecs; n++)
ra_hwdec_uninit(ctx->hwdecs[n]);
talloc_free(ctx->hwdecs);
memset(ctx, 0, sizeof(*ctx));
}
void ra_hwdec_ctx_load_fmt(struct ra_hwdec_ctx *ctx, struct mp_hwdec_devices *devs,
struct hwdec_imgfmt_request *params)
{
int imgfmt = params->imgfmt;
if (ctx->loading_done) {
/*
* If we previously marked interop loading as done (for reasons
* discussed above), then do not load any other interops regardless
* of imgfmt.
*/
return;
}
if (imgfmt == IMGFMT_NONE) {
MP_VERBOSE(ctx, "Loading hwdec drivers for all formats\n");
load_hwdecs_all(ctx, devs);
return;
}
MP_VERBOSE(ctx, "Loading hwdec drivers for format: '%s'\n",
mp_imgfmt_to_name(imgfmt));
for (int i = 0; ra_hwdec_drivers[i]; i++) {
bool matched_fmt = false;
const struct ra_hwdec_driver *drv = ra_hwdec_drivers[i];
for (int j = 0; drv->imgfmts[j]; j++) {
if (imgfmt == drv->imgfmts[j]) {
matched_fmt = true;
break;
}
}
if (!matched_fmt) {
continue;
}
load_add_hwdec(ctx, devs, drv, params->probing);
}
}
struct ra_hwdec *ra_hwdec_get(struct ra_hwdec_ctx *ctx, int imgfmt)
{
for (int n = 0; n < ctx->num_hwdecs; n++) {
if (ra_hwdec_test_format(ctx->hwdecs[n], imgfmt))
return ctx->hwdecs[n];
}
return NULL;
}
int ra_hwdec_driver_get_imgfmt_for_name(const char *name)
{
for (int i = 0; ra_hwdec_drivers[i]; i++) {
if (!strcmp(ra_hwdec_drivers[i]->name, name)) {
return ra_hwdec_drivers[i]->imgfmts[0];
}
}
return IMGFMT_NONE;
}
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