mirror of
https://github.com/mpv-player/mpv
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3f006eced4
Today, validation is only possible for string type options. But there's no particular reason why it needs to be restricted in this way, and there are potential uses, to allow other options to be validated without forcing the option to have to reimplement parsing from scratch. The first part, simply making the validation function an explicit field instead of overloading priv is simple enough. But if we only do that, then the validation function still needs to deal with the raw pre-parsed string. Instead, we want to allow the value to be parsed before it is validated. That in turn leads to us having validator functions that should be type aware. Unfortunately, that means we need to keep the explicit macro like OPT_STRING_VALIDATE() as a way to enforce the correct typing of the function. Otherwise, we'd have to have the validator take a void * and hope the implementation can cast it correctly. For help, we don't have this problem, as help doesn't look at the value. Then, we turn validators that are really help generators into explicit help functions and where a validator is help + validation, we split them into two parts. I have, however, left functions that need to query information for both help and validation as single functions to avoid code duplication. In this change, I have not added an other OPT_FOO_VALIDATE() macros as they are not needed, but I will add some in a separate change to illustrate the pattern.
202 lines
5.9 KiB
C
202 lines
5.9 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stddef.h>
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#include <string.h>
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#include "config.h"
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#include "common/common.h"
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#include "common/msg.h"
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#include "options/m_config.h"
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#include "hwdec.h"
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extern const struct ra_hwdec_driver ra_hwdec_vaegl;
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extern const struct ra_hwdec_driver ra_hwdec_vaglx;
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extern const struct ra_hwdec_driver ra_hwdec_videotoolbox;
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extern const struct ra_hwdec_driver ra_hwdec_vdpau;
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extern const struct ra_hwdec_driver ra_hwdec_dxva2egl;
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extern const struct ra_hwdec_driver ra_hwdec_d3d11egl;
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extern const struct ra_hwdec_driver ra_hwdec_dxva2gldx;
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extern const struct ra_hwdec_driver ra_hwdec_dxva2;
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extern const struct ra_hwdec_driver ra_hwdec_d3d11va;
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extern const struct ra_hwdec_driver ra_hwdec_dxva2dxgi;
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extern const struct ra_hwdec_driver ra_hwdec_cuda;
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extern const struct ra_hwdec_driver ra_hwdec_cuda_nvdec;
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extern const struct ra_hwdec_driver ra_hwdec_rpi_overlay;
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extern const struct ra_hwdec_driver ra_hwdec_drmprime_drm;
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const struct ra_hwdec_driver *const ra_hwdec_drivers[] = {
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#if HAVE_VAAPI_EGL || HAVE_VAAPI_VULKAN
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&ra_hwdec_vaegl,
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#endif
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#if HAVE_VIDEOTOOLBOX_GL || HAVE_IOS_GL
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&ra_hwdec_videotoolbox,
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#endif
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#if HAVE_D3D_HWACCEL
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#if HAVE_EGL_ANGLE
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&ra_hwdec_d3d11egl,
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#if HAVE_D3D9_HWACCEL
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&ra_hwdec_dxva2egl,
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#endif
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#endif
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#if HAVE_D3D11
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&ra_hwdec_d3d11va,
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#if HAVE_D3D9_HWACCEL
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&ra_hwdec_dxva2dxgi,
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#endif
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#endif
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#endif
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#if HAVE_GL_DXINTEROP_D3D9
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&ra_hwdec_dxva2gldx,
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#endif
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#if HAVE_CUDA_INTEROP
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&ra_hwdec_cuda,
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#endif
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#if HAVE_VDPAU_GL_X11
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&ra_hwdec_vdpau,
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#endif
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#if HAVE_RPI_MMAL
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&ra_hwdec_rpi_overlay,
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#endif
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#if HAVE_DRM
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&ra_hwdec_drmprime_drm,
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#endif
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NULL
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};
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struct ra_hwdec *ra_hwdec_load_driver(struct ra *ra, struct mp_log *log,
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struct mpv_global *global,
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struct mp_hwdec_devices *devs,
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const struct ra_hwdec_driver *drv,
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bool is_auto)
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{
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struct ra_hwdec *hwdec = talloc(NULL, struct ra_hwdec);
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*hwdec = (struct ra_hwdec) {
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.driver = drv,
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.log = mp_log_new(hwdec, log, drv->name),
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.global = global,
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.ra = ra,
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.devs = devs,
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.probing = is_auto,
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.priv = talloc_zero_size(hwdec, drv->priv_size),
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};
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mp_verbose(log, "Loading hwdec driver '%s'\n", drv->name);
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if (hwdec->driver->init(hwdec) < 0) {
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ra_hwdec_uninit(hwdec);
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mp_verbose(log, "Loading failed.\n");
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return NULL;
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}
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return hwdec;
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}
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int ra_hwdec_validate_opt(struct mp_log *log, const m_option_t *opt,
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struct bstr name, const char **value)
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{
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struct bstr param = bstr0(*value);
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bool help = bstr_equals0(param, "help");
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if (help)
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mp_info(log, "Available hwdecs:\n");
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for (int n = 0; ra_hwdec_drivers[n]; n++) {
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const struct ra_hwdec_driver *drv = ra_hwdec_drivers[n];
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if (help) {
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mp_info(log, " %s\n", drv->name);
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} else if (bstr_equals0(param, drv->name)) {
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return 1;
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}
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}
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if (help) {
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mp_info(log, " auto (behavior depends on context)\n"
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" all (load all hwdecs)\n"
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" no (do not load any and block loading on demand)\n");
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return M_OPT_EXIT;
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}
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if (!param.len)
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return 1; // "" is treated specially
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if (bstr_equals0(param, "all") || bstr_equals0(param, "auto") ||
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bstr_equals0(param, "no"))
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return 1;
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mp_fatal(log, "No hwdec backend named '%.*s' found!\n", BSTR_P(param));
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return M_OPT_INVALID;
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}
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void ra_hwdec_uninit(struct ra_hwdec *hwdec)
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{
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if (hwdec)
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hwdec->driver->uninit(hwdec);
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talloc_free(hwdec);
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}
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bool ra_hwdec_test_format(struct ra_hwdec *hwdec, int imgfmt)
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{
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for (int n = 0; hwdec->driver->imgfmts[n]; n++) {
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if (hwdec->driver->imgfmts[n] == imgfmt)
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return true;
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}
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return false;
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}
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struct ra_hwdec_mapper *ra_hwdec_mapper_create(struct ra_hwdec *hwdec,
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struct mp_image_params *params)
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{
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assert(ra_hwdec_test_format(hwdec, params->imgfmt));
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struct ra_hwdec_mapper *mapper = talloc_ptrtype(NULL, mapper);
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*mapper = (struct ra_hwdec_mapper){
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.owner = hwdec,
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.driver = hwdec->driver->mapper,
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.log = hwdec->log,
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.ra = hwdec->ra,
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.priv = talloc_zero_size(mapper, hwdec->driver->mapper->priv_size),
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.src_params = *params,
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.dst_params = *params,
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};
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if (mapper->driver->init(mapper) < 0)
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ra_hwdec_mapper_free(&mapper);
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return mapper;
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}
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void ra_hwdec_mapper_free(struct ra_hwdec_mapper **mapper)
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{
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struct ra_hwdec_mapper *p = *mapper;
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if (p) {
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ra_hwdec_mapper_unmap(p);
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p->driver->uninit(p);
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talloc_free(p);
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}
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*mapper = NULL;
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}
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void ra_hwdec_mapper_unmap(struct ra_hwdec_mapper *mapper)
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{
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if (mapper->driver->unmap)
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mapper->driver->unmap(mapper);
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mp_image_unrefp(&mapper->src);
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}
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int ra_hwdec_mapper_map(struct ra_hwdec_mapper *mapper, struct mp_image *img)
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{
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ra_hwdec_mapper_unmap(mapper);
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mp_image_setrefp(&mapper->src, img);
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if (mapper->driver->map(mapper) < 0) {
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ra_hwdec_mapper_unmap(mapper);
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return -1;
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}
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return 0;
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}
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