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mpv/video/out/opengl/hwdec_vaegl.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 <assert.h>
#include <unistd.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <va/va_drmcommon.h>
#include <libavutil/common.h>
#include <libavutil/hwcontext.h>
#include <libavutil/hwcontext_vaapi.h>
#include "config.h"
#include "video/out/gpu/hwdec.h"
#include "video/mp_image_pool.h"
#include "video/vaapi.h"
#include "common.h"
#include "ra_gl.h"
#include "libmpv/render_gl.h"
#ifndef GL_OES_EGL_image
typedef void* GLeglImageOES;
#endif
#ifndef EGL_KHR_image
typedef void *EGLImageKHR;
#endif
#ifndef EGL_LINUX_DMA_BUF_EXT
#define EGL_LINUX_DMA_BUF_EXT 0x3270
#define EGL_LINUX_DRM_FOURCC_EXT 0x3271
#define EGL_DMA_BUF_PLANE0_FD_EXT 0x3272
#define EGL_DMA_BUF_PLANE0_OFFSET_EXT 0x3273
#define EGL_DMA_BUF_PLANE0_PITCH_EXT 0x3274
#endif
#if HAVE_VAAPI_X11
#include <va/va_x11.h>
static VADisplay *create_x11_va_display(struct ra *ra)
{
Display *x11 = ra_get_native_resource(ra, "x11");
return x11 ? vaGetDisplay(x11) : NULL;
}
#endif
#if HAVE_VAAPI_WAYLAND
#include <va/va_wayland.h>
static VADisplay *create_wayland_va_display(struct ra *ra)
{
struct wl_display *wl = ra_get_native_resource(ra, "wl");
return wl ? vaGetDisplayWl(wl) : NULL;
}
#endif
#if HAVE_VAAPI_DRM
#include <va/va_drm.h>
static VADisplay *create_drm_va_display(struct ra *ra)
{
mpv_opengl_drm_params *params = ra_get_native_resource(ra, "drm_params");
if (!params || params->render_fd < 0)
return NULL;
return vaGetDisplayDRM(params->render_fd);
}
#endif
struct va_create_native {
const char *name;
VADisplay *(*create)(struct ra *ra);
};
static const struct va_create_native create_native_cbs[] = {
#if HAVE_VAAPI_X11
{"x11", create_x11_va_display},
#endif
#if HAVE_VAAPI_WAYLAND
{"wayland", create_wayland_va_display},
#endif
#if HAVE_VAAPI_DRM
{"drm", create_drm_va_display},
#endif
};
static VADisplay *create_native_va_display(struct ra *ra, struct mp_log *log)
{
for (int n = 0; n < MP_ARRAY_SIZE(create_native_cbs); n++) {
const struct va_create_native *disp = &create_native_cbs[n];
mp_verbose(log, "Trying to open a %s VA display...\n", disp->name);
VADisplay *display = disp->create(ra);
if (display)
return display;
}
return NULL;
}
struct priv_owner {
struct mp_vaapi_ctx *ctx;
VADisplay *display;
int *formats;
bool probing_formats; // temporary during init
};
struct priv {
int num_planes;
struct ra_tex *tex[4];
GLuint gl_textures[4];
EGLImageKHR images[4];
VAImage current_image;
bool buffer_acquired;
#if VA_CHECK_VERSION(1, 1, 0)
bool esh_not_implemented;
VADRMPRIMESurfaceDescriptor desc;
bool surface_acquired;
#endif
EGLImageKHR (EGLAPIENTRY *CreateImageKHR)(EGLDisplay, EGLContext,
EGLenum, EGLClientBuffer,
const EGLint *);
EGLBoolean (EGLAPIENTRY *DestroyImageKHR)(EGLDisplay, EGLImageKHR);
void (EGLAPIENTRY *EGLImageTargetTexture2DOES)(GLenum, GLeglImageOES);
};
static void determine_working_formats(struct ra_hwdec *hw);
static void uninit(struct ra_hwdec *hw)
{
struct priv_owner *p = hw->priv;
if (p->ctx)
hwdec_devices_remove(hw->devs, &p->ctx->hwctx);
va_destroy(p->ctx);
}
static int init(struct ra_hwdec *hw)
{
struct priv_owner *p = hw->priv;
if (!ra_is_gl(hw->ra) || !eglGetCurrentContext())
return -1;
const char *exts = eglQueryString(eglGetCurrentDisplay(), EGL_EXTENSIONS);
if (!exts)
return -1;
GL *gl = ra_gl_get(hw->ra);
if (!strstr(exts, "EXT_image_dma_buf_import") ||
!strstr(exts, "EGL_KHR_image_base") ||
!strstr(gl->extensions, "GL_OES_EGL_image") ||
!(gl->mpgl_caps & MPGL_CAP_TEX_RG))
return -1;
p->display = create_native_va_display(hw->ra, hw->log);
if (!p->display) {
MP_VERBOSE(hw, "Could not create a VA display.\n");
return -1;
}
p->ctx = va_initialize(p->display, hw->log, true);
if (!p->ctx) {
vaTerminate(p->display);
return -1;
}
if (!p->ctx->av_device_ref) {
MP_VERBOSE(hw, "libavutil vaapi code rejected the driver?\n");
return -1;
}
if (hw->probing && va_guess_if_emulated(p->ctx)) {
return -1;
}
MP_VERBOSE(hw, "using VAAPI EGL interop\n");
determine_working_formats(hw);
if (!p->formats || !p->formats[0]) {
return -1;
}
p->ctx->hwctx.supported_formats = p->formats;
p->ctx->hwctx.driver_name = hw->driver->name;
hwdec_devices_add(hw->devs, &p->ctx->hwctx);
return 0;
}
static void mapper_unmap(struct ra_hwdec_mapper *mapper)
{
struct priv_owner *p_owner = mapper->owner->priv;
VADisplay *display = p_owner->display;
struct priv *p = mapper->priv;
VAStatus status;
for (int n = 0; n < 4; n++) {
if (p->images[n])
p->DestroyImageKHR(eglGetCurrentDisplay(), p->images[n]);
p->images[n] = 0;
}
#if VA_CHECK_VERSION(1, 1, 0)
if (p->surface_acquired) {
for (int n = 0; n < p->desc.num_objects; n++)
close(p->desc.objects[n].fd);
p->surface_acquired = false;
}
#endif
if (p->buffer_acquired) {
status = vaReleaseBufferHandle(display, p->current_image.buf);
CHECK_VA_STATUS(mapper, "vaReleaseBufferHandle()");
p->buffer_acquired = false;
}
if (p->current_image.image_id != VA_INVALID_ID) {
status = vaDestroyImage(display, p->current_image.image_id);
CHECK_VA_STATUS(mapper, "vaDestroyImage()");
p->current_image.image_id = VA_INVALID_ID;
}
}
static void mapper_uninit(struct ra_hwdec_mapper *mapper)
{
struct priv *p = mapper->priv;
GL *gl = ra_gl_get(mapper->ra);
gl->DeleteTextures(4, p->gl_textures);
for (int n = 0; n < 4; n++) {
p->gl_textures[n] = 0;
ra_tex_free(mapper->ra, &p->tex[n]);
}
}
static bool check_fmt(struct ra_hwdec_mapper *mapper, int fmt)
{
struct priv_owner *p_owner = mapper->owner->priv;
for (int n = 0; p_owner->formats && p_owner->formats[n]; n++) {
if (p_owner->formats[n] == fmt)
return true;
}
return false;
}
static int mapper_init(struct ra_hwdec_mapper *mapper)
{
struct priv_owner *p_owner = mapper->owner->priv;
struct priv *p = mapper->priv;
GL *gl = ra_gl_get(mapper->ra);
p->current_image.buf = p->current_image.image_id = VA_INVALID_ID;
// EGL_KHR_image_base
p->CreateImageKHR = (void *)eglGetProcAddress("eglCreateImageKHR");
p->DestroyImageKHR = (void *)eglGetProcAddress("eglDestroyImageKHR");
// GL_OES_EGL_image
p->EGLImageTargetTexture2DOES =
(void *)eglGetProcAddress("glEGLImageTargetTexture2DOES");
if (!p->CreateImageKHR || !p->DestroyImageKHR ||
!p->EGLImageTargetTexture2DOES)
return -1;
mapper->dst_params = mapper->src_params;
mapper->dst_params.imgfmt = mapper->src_params.hw_subfmt;
mapper->dst_params.hw_subfmt = 0;
struct ra_imgfmt_desc desc = {0};
struct mp_image layout = {0};
if (!ra_get_imgfmt_desc(mapper->ra, mapper->dst_params.imgfmt, &desc))
return -1;
p->num_planes = desc.num_planes;
mp_image_set_params(&layout, &mapper->dst_params);
gl->GenTextures(4, p->gl_textures);
for (int n = 0; n < desc.num_planes; n++) {
gl->BindTexture(GL_TEXTURE_2D, p->gl_textures[n]);
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
gl->BindTexture(GL_TEXTURE_2D, 0);
struct ra_tex_params params = {
.dimensions = 2,
.w = mp_image_plane_w(&layout, n),
.h = mp_image_plane_h(&layout, n),
.d = 1,
.format = desc.planes[n],
.render_src = true,
.src_linear = true,
};
if (params.format->ctype != RA_CTYPE_UNORM)
return -1;
p->tex[n] = ra_create_wrapped_tex(mapper->ra, &params,
p->gl_textures[n]);
if (!p->tex[n])
return -1;
}
if (!p_owner->probing_formats && !check_fmt(mapper, mapper->dst_params.imgfmt))
{
MP_FATAL(mapper, "unsupported VA image format %s\n",
mp_imgfmt_to_name(mapper->dst_params.imgfmt));
return -1;
}
return 0;
}
#define ADD_ATTRIB(name, value) \
do { \
assert(num_attribs + 3 < MP_ARRAY_SIZE(attribs)); \
attribs[num_attribs++] = (name); \
attribs[num_attribs++] = (value); \
attribs[num_attribs] = EGL_NONE; \
} while(0)
static int mapper_map(struct ra_hwdec_mapper *mapper)
{
struct priv_owner *p_owner = mapper->owner->priv;
struct priv *p = mapper->priv;
GL *gl = ra_gl_get(mapper->ra);
VAStatus status;
VAImage *va_image = &p->current_image;
VADisplay *display = p_owner->display;
#if VA_CHECK_VERSION(1, 1, 0)
if (p->esh_not_implemented)
goto esh_failed;
status = vaExportSurfaceHandle(display, va_surface_id(mapper->src),
VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME_2,
VA_EXPORT_SURFACE_READ_ONLY |
VA_EXPORT_SURFACE_SEPARATE_LAYERS,
&p->desc);
if (!CHECK_VA_STATUS(mapper, "vaAcquireSurfaceHandle()")) {
if (status == VA_STATUS_ERROR_UNIMPLEMENTED)
p->esh_not_implemented = true;
goto esh_failed;
}
p->surface_acquired = true;
for (int n = 0; n < p->num_planes; n++) {
int attribs[20] = {EGL_NONE};
int num_attribs = 0;
ADD_ATTRIB(EGL_LINUX_DRM_FOURCC_EXT, p->desc.layers[n].drm_format);
ADD_ATTRIB(EGL_WIDTH, p->tex[n]->params.w);
ADD_ATTRIB(EGL_HEIGHT, p->tex[n]->params.h);
#define ADD_PLANE_ATTRIBS(plane) do { \
ADD_ATTRIB(EGL_DMA_BUF_PLANE ## plane ## _FD_EXT, \
p->desc.objects[p->desc.layers[n].object_index[plane]].fd); \
ADD_ATTRIB(EGL_DMA_BUF_PLANE ## plane ## _OFFSET_EXT, \
p->desc.layers[n].offset[plane]); \
ADD_ATTRIB(EGL_DMA_BUF_PLANE ## plane ## _PITCH_EXT, \
p->desc.layers[n].pitch[plane]); \
} while (0)
ADD_PLANE_ATTRIBS(0);
if (p->desc.layers[n].num_planes > 1)
ADD_PLANE_ATTRIBS(1);
if (p->desc.layers[n].num_planes > 2)
ADD_PLANE_ATTRIBS(2);
if (p->desc.layers[n].num_planes > 3)
ADD_PLANE_ATTRIBS(3);
p->images[n] = p->CreateImageKHR(eglGetCurrentDisplay(),
EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, attribs);
if (!p->images[n])
goto esh_failed;
gl->BindTexture(GL_TEXTURE_2D, p->gl_textures[n]);
p->EGLImageTargetTexture2DOES(GL_TEXTURE_2D, p->images[n]);
mapper->tex[n] = p->tex[n];
}
gl->BindTexture(GL_TEXTURE_2D, 0);
if (p->desc.fourcc == VA_FOURCC_YV12)
MPSWAP(struct ra_tex*, mapper->tex[1], mapper->tex[2]);
return 0;
esh_failed:
if (p->surface_acquired) {
for (int n = 0; n < p->desc.num_objects; n++)
close(p->desc.objects[n].fd);
p->surface_acquired = false;
}
#endif
status = vaDeriveImage(display, va_surface_id(mapper->src), va_image);
if (!CHECK_VA_STATUS(mapper, "vaDeriveImage()"))
goto err;
VABufferInfo buffer_info = {.mem_type = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME};
status = vaAcquireBufferHandle(display, va_image->buf, &buffer_info);
if (!CHECK_VA_STATUS(mapper, "vaAcquireBufferHandle()"))
goto err;
p->buffer_acquired = true;
int drm_fmts[8] = {
// 1 bytes per component, 1-4 components
MKTAG('R', '8', ' ', ' '), // DRM_FORMAT_R8
MKTAG('G', 'R', '8', '8'), // DRM_FORMAT_GR88
0, // untested (DRM_FORMAT_RGB888?)
0, // untested (DRM_FORMAT_RGBA8888?)
// 2 bytes per component, 1-4 components
MKTAG('R', '1', '6', ' '), // proposed DRM_FORMAT_R16
MKTAG('G', 'R', '3', '2'), // proposed DRM_FORMAT_GR32
0, // N/A
0, // N/A
};
for (int n = 0; n < p->num_planes; n++) {
int attribs[20] = {EGL_NONE};
int num_attribs = 0;
const struct ra_format *fmt = p->tex[n]->params.format;
int n_comp = fmt->num_components;
int comp_s = fmt->component_size[n] / 8;
if (n_comp < 1 || n_comp > 3 || comp_s < 1 || comp_s > 2)
goto err;
int drm_fmt = drm_fmts[n_comp - 1 + (comp_s - 1) * 4];
if (!drm_fmt)
goto err;
ADD_ATTRIB(EGL_LINUX_DRM_FOURCC_EXT, drm_fmt);
ADD_ATTRIB(EGL_WIDTH, p->tex[n]->params.w);
ADD_ATTRIB(EGL_HEIGHT, p->tex[n]->params.h);
ADD_ATTRIB(EGL_DMA_BUF_PLANE0_FD_EXT, buffer_info.handle);
ADD_ATTRIB(EGL_DMA_BUF_PLANE0_OFFSET_EXT, va_image->offsets[n]);
ADD_ATTRIB(EGL_DMA_BUF_PLANE0_PITCH_EXT, va_image->pitches[n]);
p->images[n] = p->CreateImageKHR(eglGetCurrentDisplay(),
EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, attribs);
if (!p->images[n])
goto err;
gl->BindTexture(GL_TEXTURE_2D, p->gl_textures[n]);
p->EGLImageTargetTexture2DOES(GL_TEXTURE_2D, p->images[n]);
mapper->tex[n] = p->tex[n];
}
gl->BindTexture(GL_TEXTURE_2D, 0);
if (va_image->format.fourcc == VA_FOURCC_YV12)
MPSWAP(struct ra_tex*, mapper->tex[1], mapper->tex[2]);
return 0;
err:
if (!p_owner->probing_formats)
MP_FATAL(mapper, "mapping VAAPI EGL image failed\n");
return -1;
}
static bool try_format(struct ra_hwdec *hw, struct mp_image *surface)
{
bool ok = false;
struct ra_hwdec_mapper *mapper = ra_hwdec_mapper_create(hw, &surface->params);
if (mapper)
ok = ra_hwdec_mapper_map(mapper, surface) >= 0;
ra_hwdec_mapper_free(&mapper);
return ok;
}
static void determine_working_formats(struct ra_hwdec *hw)
{
struct priv_owner *p = hw->priv;
int num_formats = 0;
int *formats = NULL;
p->probing_formats = true;
AVHWFramesConstraints *fc =
av_hwdevice_get_hwframe_constraints(p->ctx->av_device_ref, NULL);
if (!fc) {
MP_WARN(hw, "failed to retrieve libavutil frame constraints\n");
goto done;
}
for (int n = 0; fc->valid_sw_formats[n] != AV_PIX_FMT_NONE; n++) {
AVBufferRef *fref = NULL;
struct mp_image *s = NULL;
AVFrame *frame = NULL;
fref = av_hwframe_ctx_alloc(p->ctx->av_device_ref);
if (!fref)
goto err;
AVHWFramesContext *fctx = (void *)fref->data;
fctx->format = AV_PIX_FMT_VAAPI;
fctx->sw_format = fc->valid_sw_formats[n];
fctx->width = 128;
fctx->height = 128;
if (av_hwframe_ctx_init(fref) < 0)
goto err;
frame = av_frame_alloc();
if (!frame)
goto err;
if (av_hwframe_get_buffer(fref, frame, 0) < 0)
goto err;
s = mp_image_from_av_frame(frame);
if (!s || !mp_image_params_valid(&s->params))
goto err;
if (try_format(hw, s))
MP_TARRAY_APPEND(p, formats, num_formats, s->params.hw_subfmt);
err:
talloc_free(s);
av_frame_free(&frame);
av_buffer_unref(&fref);
}
av_hwframe_constraints_free(&fc);
done:
MP_TARRAY_APPEND(p, formats, num_formats, 0); // terminate it
p->formats = formats;
p->probing_formats = false;
MP_VERBOSE(hw, "Supported formats:\n");
for (int n = 0; formats[n]; n++)
MP_VERBOSE(hw, " %s\n", mp_imgfmt_to_name(formats[n]));
}
const struct ra_hwdec_driver ra_hwdec_vaegl = {
.name = "vaapi-egl",
.priv_size = sizeof(struct priv_owner),
.imgfmts = {IMGFMT_VAAPI, 0},
.init = init,
.uninit = uninit,
.mapper = &(const struct ra_hwdec_mapper_driver){
.priv_size = sizeof(struct priv),
.init = mapper_init,
.uninit = mapper_uninit,
.map = mapper_map,
.unmap = mapper_unmap,
},
};
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