mpv/video/out/gpu/context.c

276 lines
7.5 KiB
C

/*
* 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"
#include "spirv.h"
/* OpenGL */
extern const struct ra_ctx_fns ra_ctx_glx;
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_dxgl;
extern const struct ra_ctx_fns ra_ctx_rpi;
extern const struct ra_ctx_fns ra_ctx_android;
/* Vulkan */
extern const struct ra_ctx_fns ra_ctx_vulkan_wayland;
extern const struct ra_ctx_fns ra_ctx_vulkan_win;
extern const struct ra_ctx_fns ra_ctx_vulkan_xlib;
extern const struct ra_ctx_fns ra_ctx_vulkan_android;
extern const struct ra_ctx_fns ra_ctx_vulkan_display;
/* Direct3D 11 */
extern const struct ra_ctx_fns ra_ctx_d3d11;
/* No API */
extern const struct ra_ctx_fns ra_ctx_wldmabuf;
static const struct ra_ctx_fns *contexts[] = {
#if HAVE_D3D11
&ra_ctx_d3d11,
#endif
// OpenGL contexts:
#if HAVE_EGL_ANDROID
&ra_ctx_android,
#endif
#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_dxgl,
#endif
#if HAVE_GL_WAYLAND
&ra_ctx_wayland_egl,
#endif
#if HAVE_EGL_X11
&ra_ctx_x11_egl,
#endif
#if HAVE_GL_X11
&ra_ctx_glx,
#endif
#if HAVE_EGL_DRM
&ra_ctx_drm_egl,
#endif
// Vulkan contexts:
#if HAVE_VULKAN
#if HAVE_ANDROID
&ra_ctx_vulkan_android,
#endif
#if HAVE_WIN32_DESKTOP
&ra_ctx_vulkan_win,
#endif
#if HAVE_WAYLAND
&ra_ctx_vulkan_wayland,
#endif
#if HAVE_X11
&ra_ctx_vulkan_xlib,
#endif
&ra_ctx_vulkan_display,
#endif
/* No API contexts: */
#if HAVE_DMABUF_WAYLAND
&ra_ctx_wldmabuf,
#endif
};
static int ra_ctx_api_help(struct mp_log *log, const struct m_option *opt,
struct bstr name)
{
mp_info(log, "GPU APIs (contexts):\n");
mp_info(log, " auto (autodetect)\n");
for (int n = 0; n < MP_ARRAY_SIZE(contexts); n++) {
if (!contexts[n]->hidden)
mp_info(log, " %s (%s)\n", contexts[n]->type, contexts[n]->name);
}
return M_OPT_EXIT;
}
static int ra_ctx_validate_api(struct mp_log *log, const struct m_option *opt,
struct bstr name, const char **value)
{
struct bstr param = bstr0(*value);
if (bstr_equals0(param, "auto"))
return 1;
for (int i = 0; i < MP_ARRAY_SIZE(contexts); i++) {
if (bstr_equals0(param, contexts[i]->type) && !contexts[i]->hidden)
return 1;
}
return M_OPT_INVALID;
}
static int ra_ctx_context_help(struct mp_log *log, const struct m_option *opt,
struct bstr name)
{
mp_info(log, "GPU contexts (APIs):\n");
mp_info(log, " auto (autodetect)\n");
for (int n = 0; n < MP_ARRAY_SIZE(contexts); n++) {
if (!contexts[n]->hidden)
mp_info(log, " %s (%s)\n", contexts[n]->name, contexts[n]->type);
}
return M_OPT_EXIT;
}
static int ra_ctx_validate_context(struct mp_log *log, const struct m_option *opt,
struct bstr name, const char **value)
{
struct bstr param = bstr0(*value);
if (bstr_equals0(param, "auto"))
return 1;
for (int i = 0; i < MP_ARRAY_SIZE(contexts); i++) {
if (bstr_equals0(param, contexts[i]->name) && !contexts[i]->hidden)
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, struct ra_ctx_opts opts)
{
bool api_auto = !opts.context_type || strcmp(opts.context_type, "auto") == 0;
bool ctx_auto = !opts.context_name || strcmp(opts.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 (contexts[i]->hidden)
continue;
if (!opts.probing && strcmp(contexts[i]->name, opts.context_name) != 0)
continue;
if (!api_auto && strcmp(contexts[i]->type, opts.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);
}
vo->probing = old_probing;
// If we've reached this point, then none of the contexts matched the name
// requested, or the backend creation failed for all of them.
if (!vo->probing)
MP_ERR(vo, "Failed initializing any suitable GPU context!\n");
return NULL;
}
struct ra_ctx *ra_ctx_create_by_name(struct vo *vo, const char *name)
{
for (int i = 0; i < MP_ARRAY_SIZE(contexts); i++) {
if (strcmp(name, contexts[i]->name) != 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),
.fns = contexts[i],
};
MP_VERBOSE(ctx, "Initializing GPU context '%s'\n", ctx->fns->name);
if (contexts[i]->init(ctx))
return ctx;
talloc_free(ctx);
}
return NULL;
}
void ra_ctx_destroy(struct ra_ctx **ctx_ptr)
{
struct ra_ctx *ctx = *ctx_ptr;
if (!ctx)
return;
if (ctx->spirv && ctx->spirv->fns->uninit)
ctx->spirv->fns->uninit(ctx);
ctx->fns->uninit(ctx);
talloc_free(ctx);
*ctx_ptr = NULL;
}
#define OPT_BASE_STRUCT struct ra_ctx_opts
const struct m_sub_options ra_ctx_conf = {
.opts = (const m_option_t[]) {
{"gpu-context",
OPT_STRING_VALIDATE(context_name, ra_ctx_validate_context),
.help = ra_ctx_context_help},
{"gpu-api",
OPT_STRING_VALIDATE(context_type, ra_ctx_validate_api),
.help = ra_ctx_api_help},
{"gpu-debug", OPT_FLAG(debug)},
{"gpu-sw", OPT_FLAG(allow_sw)},
{0}
},
.size = sizeof(struct ra_ctx_opts),
};