diff options
Diffstat (limited to 'video/out/gpu/context.c')
| -rw-r--r-- | video/out/gpu/context.c | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/video/out/gpu/context.c b/video/out/gpu/context.c new file mode 100644 index 0000000000..dbabba8b3b --- /dev/null +++ b/video/out/gpu/context.c @@ -0,0 +1,186 @@ +/* + * 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 <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <stdbool.h> +#include <math.h> +#include <assert.h> + +#include "config.h" +#include "common/common.h" +#include "common/msg.h" +#include "options/options.h" +#include "options/m_option.h" +#include "video/out/vo.h" + +#include "context.h" + +extern const struct ra_ctx_fns ra_ctx_glx; +extern const struct ra_ctx_fns ra_ctx_glx_probe; +extern const struct ra_ctx_fns ra_ctx_x11_egl; +extern const struct ra_ctx_fns ra_ctx_drm_egl; +extern const struct ra_ctx_fns ra_ctx_cocoa; +extern const struct ra_ctx_fns ra_ctx_wayland_egl; +extern const struct ra_ctx_fns ra_ctx_wgl; +extern const struct ra_ctx_fns ra_ctx_angle; +extern const struct ra_ctx_fns ra_ctx_dxinterop; +extern const struct ra_ctx_fns ra_ctx_rpi; +extern const struct ra_ctx_fns ra_ctx_mali; +extern const struct ra_ctx_fns ra_ctx_vdpauglx; + +static const struct ra_ctx_fns *contexts[] = { +// OpenGL contexts: +#if HAVE_RPI + &ra_ctx_rpi, +#endif +/* +#if HAVE_GL_COCOA + &ra_ctx_cocoa, +#endif +#if HAVE_EGL_ANGLE_WIN32 + &ra_ctx_angle, +#endif +#if HAVE_GL_WIN32 + &ra_ctx_wgl, +#endif +#if HAVE_GL_DXINTEROP + &ra_ctx_dxinterop, +#endif +*/ +#if HAVE_GL_X11 + &ra_ctx_glx_probe, +#endif +#if HAVE_EGL_X11 + &ra_ctx_x11_egl, +#endif +#if HAVE_GL_X11 + &ra_ctx_glx, +#endif +#if HAVE_GL_WAYLAND + &ra_ctx_wayland_egl, +#endif +#if HAVE_EGL_DRM + &ra_ctx_drm_egl, +#endif +#if HAVE_MALI_FBDEV + &ra_ctx_mali, +#endif +#if HAVE_VDPAU_GL_X11 + &ra_ctx_vdpauglx, +#endif +}; + +static bool get_help(struct mp_log *log, struct bstr param) +{ + if (bstr_equals0(param, "help")) { + mp_info(log, "GPU contexts / APIs:\n"); + mp_info(log, " auto (autodetect)\n"); + for (int n = 0; n < MP_ARRAY_SIZE(contexts); n++) + mp_info(log, " %s (%s)\n", contexts[n]->name, contexts[n]->type); + return true; + } + + return false; +} + +int ra_ctx_validate_api(struct mp_log *log, const struct m_option *opt, + struct bstr name, struct bstr param) +{ + if (get_help(log, param)) + return M_OPT_EXIT; + if (bstr_equals0(param, "auto")) + return 1; + for (int i = 0; i < MP_ARRAY_SIZE(contexts); i++) { + if (bstr_equals0(param, contexts[i]->type)) + return 1; + } + return M_OPT_INVALID; +} + +int ra_ctx_validate_context(struct mp_log *log, const struct m_option *opt, + struct bstr name, struct bstr param) +{ + if (get_help(log, param)) + return M_OPT_EXIT; + if (bstr_equals0(param, "auto")) + return 1; + for (int i = 0; i < MP_ARRAY_SIZE(contexts); i++) { + if (bstr_equals0(param, contexts[i]->name)) + return 1; + } + return M_OPT_INVALID; +} + +// Create a VO window and create a RA context on it. +// vo_flags: passed to the backend's create window function +struct ra_ctx *ra_ctx_create(struct vo *vo, const char *context_type, + const char *context_name, struct ra_ctx_opts opts) +{ + bool api_auto = !context_type || strcmp(context_type, "auto") == 0; + bool ctx_auto = !context_name || strcmp(context_name, "auto") == 0; + + if (ctx_auto) { + MP_VERBOSE(vo, "Probing for best GPU context.\n"); + opts.probing = true; + } + + // Hack to silence backend (X11/Wayland/etc.) errors. Kill it once backends + // are separate from `struct vo` + bool old_probing = vo->probing; + vo->probing = opts.probing; + + for (int i = 0; i < MP_ARRAY_SIZE(contexts); i++) { + if (!opts.probing && strcmp(contexts[i]->name, context_name) != 0) + continue; + if (!api_auto && strcmp(contexts[i]->type, context_type) != 0) + continue; + + struct ra_ctx *ctx = talloc_ptrtype(NULL, ctx); + *ctx = (struct ra_ctx) { + .vo = vo, + .global = vo->global, + .log = mp_log_new(ctx, vo->log, contexts[i]->type), + .opts = opts, + .fns = contexts[i], + }; + + MP_VERBOSE(ctx, "Initializing GPU context '%s'\n", ctx->fns->name); + if (contexts[i]->init(ctx)) { + vo->probing = old_probing; + return ctx; + } + + talloc_free(ctx); + } + + // If we've reached this point, then none of the contexts matched the name + // requested, or the backend creation failed for all of them. + MP_ERR(vo, "Failed initializing any suitable GPU context!\n"); + vo->probing = old_probing; + return NULL; +} + +void ra_ctx_destroy(struct ra_ctx **ctx) +{ + if (*ctx) + (*ctx)->fns->uninit(*ctx); + talloc_free(*ctx); + *ctx = NULL; +} |