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moonlight-qt/app/streaming/video/ffmpeg-renderers/vaapi.cpp
Cameron Gutman 95c4a24d99 Destroy subpictures before the associated image
2022-05-20 21:46:40 -05:00

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#include <QString>
#include "vaapi.h"
#include "utils.h"
#include <streaming/streamutils.h>
#include <streaming/session.h>
#include <SDL_syswm.h>
#include <unistd.h>
#include <fcntl.h>
VAAPIRenderer::VAAPIRenderer()
: m_HwContext(nullptr),
m_BlacklistedForDirectRendering(false),
m_OverlayMutex(nullptr)
{
#ifdef HAVE_EGL
m_PrimeDescriptor.num_layers = 0;
m_PrimeDescriptor.num_objects = 0;
m_EGLExtDmaBuf = false;
m_eglCreateImage = nullptr;
m_eglCreateImageKHR = nullptr;
m_eglDestroyImage = nullptr;
m_eglDestroyImageKHR = nullptr;
#endif
SDL_zero(m_OverlayImage);
SDL_zero(m_OverlaySubpicture);
SDL_zero(m_OverlayFormat);
}
VAAPIRenderer::~VAAPIRenderer()
{
if (m_HwContext != nullptr) {
AVHWDeviceContext* deviceContext = (AVHWDeviceContext*)m_HwContext->data;
AVVAAPIDeviceContext* vaDeviceContext = (AVVAAPIDeviceContext*)deviceContext->hwctx;
// Hold onto this VADisplay since we'll need it to uninitialize VAAPI
VADisplay display = vaDeviceContext->display;
for (int i = 0; i < Overlay::OverlayMax; i++) {
if (m_OverlaySubpicture[i] != 0) {
vaDestroySubpicture(display, m_OverlaySubpicture[i]);
}
if (m_OverlayImage[i].image_id != 0) {
vaDestroyImage(display, m_OverlayImage[i].image_id);
}
}
av_buffer_unref(&m_HwContext);
if (display) {
vaTerminate(display);
}
}
if (m_OverlayMutex != nullptr) {
SDL_DestroyMutex(m_OverlayMutex);
}
}
VADisplay
VAAPIRenderer::openDisplay(SDL_Window* window)
{
SDL_SysWMinfo info;
VADisplay display;
SDL_VERSION(&info.version);
if (!SDL_GetWindowWMInfo(window, &info)) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"SDL_GetWindowWMInfo() failed: %s",
SDL_GetError());
return nullptr;
}
m_WindowSystem = info.subsystem;
if (info.subsystem == SDL_SYSWM_X11) {
#ifdef HAVE_LIBVA_X11
m_XWindow = info.info.x11.window;
display = vaGetDisplay(info.info.x11.display);
if (display == nullptr) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Unable to open X11 display for VAAPI");
return nullptr;
}
#else
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Moonlight not compiled with VAAPI X11 support!");
return nullptr;
#endif
}
else if (info.subsystem == SDL_SYSWM_WAYLAND) {
#ifdef HAVE_LIBVA_WAYLAND
display = vaGetDisplayWl(info.info.wl.display);
if (display == nullptr) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Unable to open Wayland display for VAAPI");
return nullptr;
}
#else
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Moonlight not compiled with VAAPI Wayland support!");
return nullptr;
#endif
}
#if defined(SDL_VIDEO_DRIVER_KMSDRM) && defined(HAVE_LIBVA_DRM) && SDL_VERSION_ATLEAST(2, 0, 15)
else if (info.subsystem == SDL_SYSWM_KMSDRM) {
SDL_assert(info.info.kmsdrm.drm_fd >= 0);
display = vaGetDisplayDRM(info.info.kmsdrm.drm_fd);
if (display == nullptr) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Unable to open DRM display for VAAPI");
return nullptr;
}
}
#endif
else {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Unsupported VAAPI rendering subsystem: %d",
info.subsystem);
return nullptr;
}
return display;
}
bool
VAAPIRenderer::initialize(PDECODER_PARAMETERS params)
{
int err;
m_VideoFormat = params->videoFormat;
m_VideoWidth = params->width;
m_VideoHeight = params->height;
SDL_GetWindowSize(params->window, &m_DisplayWidth, &m_DisplayHeight);
m_HwContext = av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_VAAPI);
if (!m_HwContext) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Failed to allocate VAAPI context");
return false;
}
AVHWDeviceContext* deviceContext = (AVHWDeviceContext*)m_HwContext->data;
AVVAAPIDeviceContext* vaDeviceContext = (AVVAAPIDeviceContext*)deviceContext->hwctx;
vaDeviceContext->display = openDisplay(params->window);
if (vaDeviceContext->display == nullptr) {
// openDisplay() logs the error
return false;
}
int major, minor;
VAStatus status;
bool setPathVar = false;
for (;;) {
status = vaInitialize(vaDeviceContext->display, &major, &minor);
if (status != VA_STATUS_SUCCESS && qEnvironmentVariableIsEmpty("LIBVA_DRIVER_NAME")) {
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Trying fallback VAAPI driver names");
// It would be nice to use vaSetDriverName() here, but there's no way to unset
// it and get back to the default driver selection logic once we've overridden
// the driver name using that API. As a result, we must use LIBVA_DRIVER_NAME.
if (status != VA_STATUS_SUCCESS) {
// The iHD driver supports newer hardware like Ice Lake and Comet Lake.
// It should be picked by default on those platforms, but that doesn't
// always seem to be the case for some reason.
qputenv("LIBVA_DRIVER_NAME", "iHD");
status = vaInitialize(vaDeviceContext->display, &major, &minor);
}
if (status != VA_STATUS_SUCCESS) {
// The Iris driver in Mesa 20.0 returns a bogus VA driver (iris_drv_video.so)
// even though the correct driver is still i965. If we hit this path, we'll
// explicitly try i965 to handle this case.
qputenv("LIBVA_DRIVER_NAME", "i965");
status = vaInitialize(vaDeviceContext->display, &major, &minor);
}
if (status != VA_STATUS_SUCCESS) {
// The RadeonSI driver is compatible with XWayland but can't be detected by libva
// so try it too if all else fails.
qputenv("LIBVA_DRIVER_NAME", "radeonsi");
status = vaInitialize(vaDeviceContext->display, &major, &minor);
}
if (status != VA_STATUS_SUCCESS) {
// Unset LIBVA_DRIVER_NAME if none of the drivers we tried worked. This ensures
// we will get a fresh start using the default driver selection behavior after
// setting LIBVA_DRIVERS_PATH in the code below.
qunsetenv("LIBVA_DRIVER_NAME");
}
}
if (status == VA_STATUS_SUCCESS) {
// Success!
break;
}
if (qEnvironmentVariableIsEmpty("LIBVA_DRIVERS_PATH")) {
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Trying fallback VAAPI driver paths");
qputenv("LIBVA_DRIVERS_PATH",
#if Q_PROCESSOR_WORDSIZE == 8
"/usr/lib64/dri:" // Fedora x86_64
"/usr/lib64/va/drivers:" // Gentoo x86_64
#endif
"/usr/lib/dri:" // Arch i386 & x86_64, Fedora i386
"/usr/lib/va/drivers:" // Gentoo i386
#if defined(Q_PROCESSOR_X86_64)
"/usr/lib/x86_64-linux-gnu/dri:" // Ubuntu/Debian x86_64
#elif defined(Q_PROCESSOR_X86_32)
"/usr/lib/i386-linux-gnu/dri:" // Ubuntu/Debian i386
#endif
);
setPathVar = true;
}
else {
if (setPathVar) {
// Unset LIBVA_DRIVERS_PATH if we set it ourselves
// and we didn't find any working VAAPI drivers.
qunsetenv("LIBVA_DRIVERS_PATH");
}
// Give up
break;
}
}
if (status != VA_STATUS_SUCCESS) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Failed to initialize VAAPI: %d",
status);
return false;
}
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Initialized VAAPI %d.%d",
major, minor);
const char* vendorString = vaQueryVendorString(vaDeviceContext->display);
QString vendorStr(vendorString);
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Driver: %s",
vendorString ? vendorString : "<unknown>");
// Older versions of the Gallium VAAPI driver have a nasty memory leak that
// causes memory to be leaked for each submitted frame. I believe this is
// resolved in the libva2 drivers (VAAPI 1.x).
// If we're using Wayland, we have no choice but to use VAAPI because VDPAU
// is only supported under X11 or XWayland.
if (major == 0 && qgetenv("FORCE_VAAPI") != "1" && !WMUtils::isRunningWayland()) {
if (vendorStr.contains("AMD", Qt::CaseInsensitive) ||
vendorStr.contains("Radeon", Qt::CaseInsensitive)) {
// Fail and let VDPAU pick this up
SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
"Avoiding VAAPI on AMD driver");
return false;
}
}
if (WMUtils::isRunningWayland()) {
// The iHD VAAPI driver can initialize on XWayland but it crashes in
// vaPutSurface() so we must also not directly render on XWayland.
m_BlacklistedForDirectRendering = vendorStr.contains("iHD");
}
// This will populate the driver_quirks
err = av_hwdevice_ctx_init(m_HwContext);
if (err < 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Failed to initialize VAAPI context: %d",
err);
return false;
}
// This quirk is set for the VDPAU wrapper which doesn't work with our VAAPI renderer
if (vaDeviceContext->driver_quirks & AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES) {
// Fail and let our VDPAU renderer pick this up
SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
"Avoiding VDPAU wrapper for VAAPI decoding");
return false;
}
// Allocate mutex to synchronize overlay updates and rendering
m_OverlayMutex = SDL_CreateMutex();
if (m_OverlayMutex == nullptr) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Failed to create overlay mutex");
return false;
}
unsigned int formatCount = vaMaxNumSubpictureFormats(vaDeviceContext->display);
if (formatCount != 0) {
auto formats = new VAImageFormat[formatCount];
auto flags = new unsigned int[formatCount];
status = vaQuerySubpictureFormats(vaDeviceContext->display, formats, flags, &formatCount);
if (status == VA_STATUS_SUCCESS) {
for (unsigned int i = 0; i < formatCount; i++) {
// Format must have 32-bit color depth
if (formats[i].depth != 32) {
continue;
}
// Select an RGB format with alpha
if (formats[i].byte_order == VA_MSB_FIRST) {
switch (formats[i].fourcc) {
case VA_FOURCC_RGBA:
m_OverlaySdlPixelFormat = SDL_PIXELFORMAT_RGBA8888;
break;
case VA_FOURCC_ARGB:
m_OverlaySdlPixelFormat = SDL_PIXELFORMAT_ARGB8888;
break;
case VA_FOURCC_BGRA:
m_OverlaySdlPixelFormat = SDL_PIXELFORMAT_BGRA8888;
break;
case VA_FOURCC_ABGR:
m_OverlaySdlPixelFormat = SDL_PIXELFORMAT_ABGR8888;
break;
default:
continue;
}
}
else {
SDL_assert(formats[i].byte_order == VA_LSB_FIRST);
switch (formats[i].fourcc) {
case VA_FOURCC_RGBA:
m_OverlaySdlPixelFormat = SDL_PIXELFORMAT_ABGR8888;
break;
case VA_FOURCC_ARGB:
m_OverlaySdlPixelFormat = SDL_PIXELFORMAT_BGRA8888;
break;
case VA_FOURCC_BGRA:
m_OverlaySdlPixelFormat = SDL_PIXELFORMAT_ARGB8888;
break;
case VA_FOURCC_ABGR:
m_OverlaySdlPixelFormat = SDL_PIXELFORMAT_RGBA8888;
break;
default:
continue;
}
}
// If we made it here, we found a format that works for us
m_OverlayFormat = formats[i];
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Selected overlay subpicture format: %c%c%c%c8888",
(m_OverlayFormat.fourcc >> 0) & 0xff,
(m_OverlayFormat.fourcc >> 8) & 0xff,
(m_OverlayFormat.fourcc >> 16) & 0xff,
(m_OverlayFormat.fourcc >> 24) & 0xff);
break;
}
}
else {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"vaQuerySubpictureFormats() failed: %d",
status);
}
delete[] formats;
delete[] flags;
}
return true;
}
bool
VAAPIRenderer::prepareDecoderContext(AVCodecContext* context, AVDictionary**)
{
context->hw_device_ctx = av_buffer_ref(m_HwContext);
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Using VAAPI accelerated renderer on %s",
SDL_GetCurrentVideoDriver());
return true;
}
bool
VAAPIRenderer::needsTestFrame()
{
// We need a test frame to see if this VAAPI driver
// supports the profile used for streaming
return true;
}
bool
VAAPIRenderer::isDirectRenderingSupported()
{
if (qgetenv("VAAPI_FORCE_DIRECT") == "1") {
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Using direct rendering due to environment variable");
return true;
}
else if (qgetenv("VAAPI_FORCE_INDIRECT") == "1") {
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Using indirect rendering due to environment variable");
return false;
}
// We only support direct rendering on X11 with VAEntrypointVideoProc support
if (m_WindowSystem != SDL_SYSWM_X11 || m_BlacklistedForDirectRendering) {
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Using indirect rendering due to WM or blacklist");
return false;
}
else if (m_VideoFormat == VIDEO_FORMAT_H265_MAIN10) {
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Using indirect rendering for 10-bit video");
return false;
}
AVHWDeviceContext* deviceContext = (AVHWDeviceContext*)m_HwContext->data;
AVVAAPIDeviceContext* vaDeviceContext = (AVVAAPIDeviceContext*)deviceContext->hwctx;
VAEntrypoint entrypoints[vaMaxNumEntrypoints(vaDeviceContext->display)];
int entrypointCount;
VAStatus status = vaQueryConfigEntrypoints(vaDeviceContext->display, VAProfileNone, entrypoints, &entrypointCount);
if (status == VA_STATUS_SUCCESS) {
for (int i = 0; i < entrypointCount; i++) {
// Without VAEntrypointVideoProc support, the driver will crash inside vaPutSurface()
if (entrypoints[i] == VAEntrypointVideoProc) {
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Using direct rendering with VAEntrypointVideoProc");
if (m_OverlayFormat.fourcc == 0) {
SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
"Unable to find supported subpicture format. Overlays will be unavailable!");
}
return true;
}
}
}
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Using indirect rendering due to lack of VAEntrypointVideoProc");
return false;
}
int VAAPIRenderer::getDecoderColorspace()
{
// Gallium drivers don't support Rec 709 yet - https://gitlab.freedesktop.org/mesa/mesa/issues/1915
// Intel-vaapi-driver defaults to Rec 601 - https://github.com/intel/intel-vaapi-driver/blob/021bcb79d1bd873bbd9fbca55f40320344bab866/src/i965_output_dri.c#L186
return COLORSPACE_REC_601;
}
void VAAPIRenderer::notifyOverlayUpdated(Overlay::OverlayType type)
{
AVHWDeviceContext* deviceContext = (AVHWDeviceContext*)m_HwContext->data;
AVVAAPIDeviceContext* vaDeviceContext = (AVVAAPIDeviceContext*)deviceContext->hwctx;
VAStatus status;
if (m_OverlayFormat.fourcc == 0) {
// We already logged for this in isDirectRenderingSupported()
return;
}
SDL_Surface* newSurface = Session::get()->getOverlayManager().getUpdatedOverlaySurface(type);
if (newSurface == nullptr && Session::get()->getOverlayManager().isOverlayEnabled(type)) {
// There's no updated surface and the overlay is enabled, so just leave the old surface alone.
return;
}
// Destroy the old image and subpicture
// NB: The mutex ensures the overlay is not currently being read for rendering.
// NB 2: It is safe to unlock here because this thread is the only surface producer.
SDL_LockMutex(m_OverlayMutex);
VAImageID oldImageId = m_OverlayImage[type].image_id;
SDL_zero(m_OverlayImage[type]);
VASubpictureID oldSubpictureId = m_OverlaySubpicture[type];
m_OverlaySubpicture[type] = 0;
SDL_UnlockMutex(m_OverlayMutex);
if (oldSubpictureId != 0) {
status = vaDestroySubpicture(vaDeviceContext->display, oldSubpictureId);
if (status != VA_STATUS_SUCCESS) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"vaDestroySubpicture() failed: %d",
status);
}
}
if (oldImageId != 0) {
status = vaDestroyImage(vaDeviceContext->display, oldImageId);
if (status != VA_STATUS_SUCCESS) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"vaDestroyImage() failed: %d",
status);
}
}
if (!Session::get()->getOverlayManager().isOverlayEnabled(type)) {
SDL_FreeSurface(newSurface);
return;
}
if (newSurface != nullptr) {
VAImage newImage;
SDL_assert(!SDL_MUSTLOCK(newSurface));
status = vaCreateImage(vaDeviceContext->display, &m_OverlayFormat, newSurface->w, newSurface->h, &newImage);
if (status != VA_STATUS_SUCCESS) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"vaCreateImage() failed: %d",
status);
SDL_FreeSurface(newSurface);
return;
}
void* imagePixels;
status = vaMapBuffer(vaDeviceContext->display, newImage.buf, &imagePixels);
if (status != VA_STATUS_SUCCESS) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"vaMapBuffer() failed: %d",
status);
SDL_FreeSurface(newSurface);
vaDestroyImage(vaDeviceContext->display, newImage.image_id);
return;
}
// Convert the surface to the proper format for the VAImage
SDL_ConvertPixels(newSurface->w, newSurface->h, newSurface->format->format,
newSurface->pixels, newSurface->pitch, m_OverlaySdlPixelFormat,
imagePixels, (int)newImage.pitches[0]);
status = vaUnmapBuffer(vaDeviceContext->display, newImage.buf);
if (status != VA_STATUS_SUCCESS) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"vaUnmapBuffer() failed: %d",
status);
SDL_FreeSurface(newSurface);
vaDestroyImage(vaDeviceContext->display, newImage.image_id);
return;
}
SDL_Rect overlayRect;
if (type == Overlay::OverlayStatusUpdate) {
// Bottom Left
overlayRect.x = 0;
overlayRect.y = m_DisplayHeight - newSurface->h;
}
else if (type == Overlay::OverlayDebug) {
// Top left
overlayRect.x = 0;
overlayRect.y = 0;
}
overlayRect.w = newSurface->w;
overlayRect.h = newSurface->h;
// Surface data is no longer needed
SDL_FreeSurface(newSurface);
VASubpictureID newSubpicture;
status = vaCreateSubpicture(vaDeviceContext->display, newImage.image_id, &newSubpicture);
if (status != VA_STATUS_SUCCESS) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"vaCreateSubpicture() failed: %d",
status);
vaDestroyImage(vaDeviceContext->display, newImage.image_id);
return;
}
SDL_LockMutex(m_OverlayMutex);
m_OverlayImage[type] = newImage;
m_OverlaySubpicture[type] = newSubpicture;
m_OverlayRect[type] = overlayRect;
SDL_UnlockMutex(m_OverlayMutex);
}
}
void
VAAPIRenderer::renderFrame(AVFrame* frame)
{
VASurfaceID surface = (VASurfaceID)(uintptr_t)frame->data[3];
AVHWDeviceContext* deviceContext = (AVHWDeviceContext*)m_HwContext->data;
AVVAAPIDeviceContext* vaDeviceContext = (AVVAAPIDeviceContext*)deviceContext->hwctx;
SDL_Rect src, dst;
src.x = src.y = 0;
src.w = m_VideoWidth;
src.h = m_VideoHeight;
dst.x = dst.y = 0;
dst.w = m_DisplayWidth;
dst.h = m_DisplayHeight;
StreamUtils::scaleSourceToDestinationSurface(&src, &dst);
if (m_WindowSystem == SDL_SYSWM_X11) {
#ifdef HAVE_LIBVA_X11
unsigned int flags = 0;
// NB: Not all VAAPI drivers respect these flags. Many drivers
// just ignore them and do the color conversion as Rec 601.
switch (frame->colorspace) {
case AVCOL_SPC_BT709:
flags |= VA_SRC_BT709;
break;
case AVCOL_SPC_BT470BG:
case AVCOL_SPC_SMPTE170M:
flags |= VA_SRC_BT601;
break;
case AVCOL_SPC_SMPTE240M:
flags |= VA_SRC_SMPTE_240;
break;
default:
// Unknown colorspace
SDL_assert(false);
break;
}
SDL_LockMutex(m_OverlayMutex);
// Associate our overlay subpictures to the current surface
for (int type = 0; type < Overlay::OverlayMax; type++) {
VAStatus status;
if (m_OverlaySubpicture[type] == 0) {
continue;
}
status = vaAssociateSubpicture(vaDeviceContext->display,
m_OverlaySubpicture[type],
&surface,
1,
0,
0,
m_OverlayImage[type].width,
m_OverlayImage[type].height,
m_OverlayRect[type].x,
m_OverlayRect[type].y,
m_OverlayRect[type].w,
m_OverlayRect[type].h,
0);
if (status != VA_STATUS_SUCCESS) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"vaAssociateSubpicture() failed: %d",
status);
}
}
// This will draw the surface and any associated subpictures
vaPutSurface(vaDeviceContext->display,
surface,
m_XWindow,
0, 0,
m_VideoWidth, m_VideoHeight,
dst.x, dst.y,
dst.w, dst.h,
NULL, 0, flags);
// Deassociate the subpictures so the subpictures can be safely destroyed/replaced
//
// NB: We don't release the mutex between associating and deassociating to ensure
// the subpictures don't change underneath us.
for (int type = 0; type < Overlay::OverlayMax; type++) {
VAStatus status;
if (m_OverlaySubpicture[type] == 0) {
continue;
}
status = vaDeassociateSubpicture(vaDeviceContext->display, m_OverlaySubpicture[type], &surface, 1);
if (status != VA_STATUS_SUCCESS) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"vaDeassociateSubpicture() failed: %d",
status);
}
}
SDL_UnlockMutex(m_OverlayMutex);
#endif
}
else if (m_WindowSystem == SDL_SYSWM_WAYLAND) {
// We don't support direct rendering on Wayland, so we should
// never get called there. Many common Wayland compositors don't
// support YUV surfaces, so direct rendering would fail.
SDL_assert(false);
}
else {
// We don't accept anything else in initialize().
SDL_assert(false);
}
}
#if defined(HAVE_EGL) || defined(HAVE_DRM)
// Ensure that vaExportSurfaceHandle() is supported by the VA-API driver
bool
VAAPIRenderer::canExportSurfaceHandle(int layerTypeFlag) {
AVHWDeviceContext* deviceContext = (AVHWDeviceContext*)m_HwContext->data;
AVVAAPIDeviceContext* vaDeviceContext = (AVVAAPIDeviceContext*)deviceContext->hwctx;
VASurfaceID surfaceId;
VAStatus st;
VADRMPRIMESurfaceDescriptor descriptor;
VASurfaceAttrib attrs[2];
int attributeCount = 0;
if (qgetenv("VAAPI_FORCE_DIRECT") == "1") {
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Using direct rendering due to environment variable");
return false;
}
// FFmpeg handles setting these quirk flags for us
if (!(vaDeviceContext->driver_quirks & AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE)) {
attrs[attributeCount].type = VASurfaceAttribMemoryType;
attrs[attributeCount].flags = VA_SURFACE_ATTRIB_SETTABLE;
attrs[attributeCount].value.type = VAGenericValueTypeInteger;
attrs[attributeCount].value.value.i = VA_SURFACE_ATTRIB_MEM_TYPE_VA;
attributeCount++;
}
// These attributes are required for i965 to create a surface that can
// be successfully exported via vaExportSurfaceHandle(). iHD doesn't
// need these, but it doesn't seem to hurt either.
attrs[attributeCount].type = VASurfaceAttribPixelFormat;
attrs[attributeCount].flags = VA_SURFACE_ATTRIB_SETTABLE;
attrs[attributeCount].value.type = VAGenericValueTypeInteger;
attrs[attributeCount].value.value.i = (m_VideoFormat == VIDEO_FORMAT_H265_MAIN10) ?
VA_FOURCC_P010 : VA_FOURCC_NV12;
attributeCount++;
st = vaCreateSurfaces(vaDeviceContext->display,
m_VideoFormat == VIDEO_FORMAT_H265_MAIN10 ?
VA_RT_FORMAT_YUV420_10 : VA_RT_FORMAT_YUV420,
1280,
720,
&surfaceId,
1,
attrs,
attributeCount);
if (st != VA_STATUS_SUCCESS) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"vaCreateSurfaces() failed: %d", st);
return false;
}
st = vaExportSurfaceHandle(vaDeviceContext->display,
surfaceId,
VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME_2,
VA_EXPORT_SURFACE_READ_ONLY | layerTypeFlag,
&descriptor);
vaDestroySurfaces(vaDeviceContext->display, &surfaceId, 1);
if (st != VA_STATUS_SUCCESS) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"vaExportSurfaceHandle() failed: %d", st);
return false;
}
for (size_t i = 0; i < descriptor.num_objects; ++i) {
close(descriptor.objects[i].fd);
}
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"VAAPI driver supports exporting DRM PRIME surface handles with %s layers",
layerTypeFlag == VA_EXPORT_SURFACE_COMPOSED_LAYERS ? "composed" : "separate");
return true;
}
#endif
#ifdef HAVE_EGL
bool
VAAPIRenderer::canExportEGL() {
// Our EGL export logic requires exporting separate layers
return canExportSurfaceHandle(VA_EXPORT_SURFACE_SEPARATE_LAYERS);
}
AVPixelFormat VAAPIRenderer::getEGLImagePixelFormat() {
return m_VideoFormat == VIDEO_FORMAT_H265_MAIN10 ?
AV_PIX_FMT_P010 : AV_PIX_FMT_NV12;
}
bool
VAAPIRenderer::initializeEGL(EGLDisplay,
const EGLExtensions &ext) {
if (!ext.isSupported("EGL_EXT_image_dma_buf_import")) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"VAAPI-EGL: DMABUF unsupported");
return false;
}
m_EGLExtDmaBuf = ext.isSupported("EGL_EXT_image_dma_buf_import_modifiers");
// NB: eglCreateImage() and eglCreateImageKHR() have slightly different definitions
m_eglCreateImage = (typeof(m_eglCreateImage))eglGetProcAddress("eglCreateImage");
m_eglCreateImageKHR = (typeof(m_eglCreateImageKHR))eglGetProcAddress("eglCreateImageKHR");
m_eglDestroyImage = (typeof(m_eglDestroyImage))eglGetProcAddress("eglDestroyImage");
m_eglDestroyImageKHR = (typeof(m_eglDestroyImageKHR))eglGetProcAddress("eglDestroyImageKHR");
if (!(m_eglCreateImage && m_eglDestroyImage) &&
!(m_eglCreateImageKHR && m_eglDestroyImageKHR)) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Missing eglCreateImage()/eglDestroyImage() in EGL driver");
return false;
}
return true;
}
ssize_t
VAAPIRenderer::exportEGLImages(AVFrame *frame, EGLDisplay dpy,
EGLImage images[EGL_MAX_PLANES]) {
ssize_t count = 0;
auto hwFrameCtx = (AVHWFramesContext*)frame->hw_frames_ctx->data;
AVVAAPIDeviceContext* vaDeviceContext = (AVVAAPIDeviceContext*)hwFrameCtx->device_ctx->hwctx;
VASurfaceID surface_id = (VASurfaceID)(uintptr_t)frame->data[3];
VAStatus st = vaExportSurfaceHandle(vaDeviceContext->display,
surface_id,
VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME_2,
VA_EXPORT_SURFACE_READ_ONLY | VA_EXPORT_SURFACE_SEPARATE_LAYERS,
&m_PrimeDescriptor);
if (st != VA_STATUS_SUCCESS) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"vaExportSurfaceHandle failed: %d", st);
return -1;
}
SDL_assert(m_PrimeDescriptor.num_layers <= EGL_MAX_PLANES);
st = vaSyncSurface(vaDeviceContext->display, surface_id);
if (st != VA_STATUS_SUCCESS) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"vaSyncSurface failed: %d", st);
goto sync_fail;
}
for (size_t i = 0; i < m_PrimeDescriptor.num_layers; ++i) {
const auto &layer = m_PrimeDescriptor.layers[i];
// Max 30 attributes (1 key + 1 value for each)
const int EGL_ATTRIB_COUNT = 30 * 2;
EGLAttrib attribs[EGL_ATTRIB_COUNT] = {
EGL_LINUX_DRM_FOURCC_EXT, layer.drm_format,
EGL_WIDTH, i == 0 ? frame->width : frame->width / 2,
EGL_HEIGHT, i == 0 ? frame->height : frame->height / 2,
};
int attribIndex = 6;
for (size_t j = 0; j < layer.num_planes; j++) {
const auto &object = m_PrimeDescriptor.objects[layer.object_index[j]];
switch (j) {
case 0:
attribs[attribIndex++] = EGL_DMA_BUF_PLANE0_FD_EXT;
attribs[attribIndex++] = object.fd;
attribs[attribIndex++] = EGL_DMA_BUF_PLANE0_OFFSET_EXT;
attribs[attribIndex++] = layer.offset[0];
attribs[attribIndex++] = EGL_DMA_BUF_PLANE0_PITCH_EXT;
attribs[attribIndex++] = layer.pitch[0];
if (m_EGLExtDmaBuf) {
attribs[attribIndex++] = EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT;
attribs[attribIndex++] = (EGLint)(object.drm_format_modifier & 0xFFFFFFFF);
attribs[attribIndex++] = EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT;
attribs[attribIndex++] = (EGLint)(object.drm_format_modifier >> 32);
}
break;
case 1:
attribs[attribIndex++] = EGL_DMA_BUF_PLANE1_FD_EXT;
attribs[attribIndex++] = object.fd;
attribs[attribIndex++] = EGL_DMA_BUF_PLANE1_OFFSET_EXT;
attribs[attribIndex++] = layer.offset[1];
attribs[attribIndex++] = EGL_DMA_BUF_PLANE1_PITCH_EXT;
attribs[attribIndex++] = layer.pitch[1];
if (m_EGLExtDmaBuf) {
attribs[attribIndex++] = EGL_DMA_BUF_PLANE1_MODIFIER_LO_EXT;
attribs[attribIndex++] = (EGLint)(object.drm_format_modifier & 0xFFFFFFFF);
attribs[attribIndex++] = EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT;
attribs[attribIndex++] = (EGLint)(object.drm_format_modifier >> 32);
}
break;
case 2:
attribs[attribIndex++] = EGL_DMA_BUF_PLANE2_FD_EXT;
attribs[attribIndex++] = object.fd;
attribs[attribIndex++] = EGL_DMA_BUF_PLANE2_OFFSET_EXT;
attribs[attribIndex++] = layer.offset[2];
attribs[attribIndex++] = EGL_DMA_BUF_PLANE2_PITCH_EXT;
attribs[attribIndex++] = layer.pitch[2];
if (m_EGLExtDmaBuf) {
attribs[attribIndex++] = EGL_DMA_BUF_PLANE2_MODIFIER_LO_EXT;
attribs[attribIndex++] = (EGLint)(object.drm_format_modifier & 0xFFFFFFFF);
attribs[attribIndex++] = EGL_DMA_BUF_PLANE2_MODIFIER_HI_EXT;
attribs[attribIndex++] = (EGLint)(object.drm_format_modifier >> 32);
}
break;
case 3:
attribs[attribIndex++] = EGL_DMA_BUF_PLANE3_FD_EXT;
attribs[attribIndex++] = object.fd;
attribs[attribIndex++] = EGL_DMA_BUF_PLANE3_OFFSET_EXT;
attribs[attribIndex++] = layer.offset[3];
attribs[attribIndex++] = EGL_DMA_BUF_PLANE3_PITCH_EXT;
attribs[attribIndex++] = layer.pitch[3];
if (m_EGLExtDmaBuf) {
attribs[attribIndex++] = EGL_DMA_BUF_PLANE3_MODIFIER_LO_EXT;
attribs[attribIndex++] = (EGLint)(object.drm_format_modifier & 0xFFFFFFFF);
attribs[attribIndex++] = EGL_DMA_BUF_PLANE3_MODIFIER_HI_EXT;
attribs[attribIndex++] = (EGLint)(object.drm_format_modifier >> 32);
}
break;
default:
Q_UNREACHABLE();
}
}
// Terminate the attribute list
attribs[attribIndex++] = EGL_NONE;
SDL_assert(attribIndex <= EGL_ATTRIB_COUNT);
if (m_eglCreateImage) {
images[i] = m_eglCreateImage(dpy, EGL_NO_CONTEXT,
EGL_LINUX_DMA_BUF_EXT,
nullptr, attribs);
if (!images[i]) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"eglCreateImage() Failed: %d", eglGetError());
goto create_image_fail;
}
}
else {
// Cast the EGLAttrib array elements to EGLint for the KHR extension
EGLint intAttribs[EGL_ATTRIB_COUNT];
for (int i = 0; i < attribIndex; i++) {
intAttribs[i] = (EGLint)attribs[i];
}
images[i] = m_eglCreateImageKHR(dpy, EGL_NO_CONTEXT,
EGL_LINUX_DMA_BUF_EXT,
nullptr, intAttribs);
if (!images[i]) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"eglCreateImageKHR() Failed: %d", eglGetError());
goto create_image_fail;
}
}
++count;
}
return count;
create_image_fail:
m_PrimeDescriptor.num_layers = count;
sync_fail:
freeEGLImages(dpy, images);
return -1;
}
void
VAAPIRenderer::freeEGLImages(EGLDisplay dpy, EGLImage images[EGL_MAX_PLANES]) {
for (size_t i = 0; i < m_PrimeDescriptor.num_layers; ++i) {
if (m_eglDestroyImage) {
m_eglDestroyImage(dpy, images[i]);
}
else {
m_eglDestroyImageKHR(dpy, images[i]);
}
}
for (size_t i = 0; i < m_PrimeDescriptor.num_objects; ++i) {
close(m_PrimeDescriptor.objects[i].fd);
}
m_PrimeDescriptor.num_layers = 0;
m_PrimeDescriptor.num_objects = 0;
}
#endif
#ifdef HAVE_DRM
bool VAAPIRenderer::canExportDrmPrime()
{
// Our DRM renderer requires composed layers
return canExportSurfaceHandle(VA_EXPORT_SURFACE_COMPOSED_LAYERS);
}
bool VAAPIRenderer::mapDrmPrimeFrame(AVFrame* frame, AVDRMFrameDescriptor* drmDescriptor)
{
auto hwFrameCtx = (AVHWFramesContext*)frame->hw_frames_ctx->data;
AVVAAPIDeviceContext* vaDeviceContext = (AVVAAPIDeviceContext*)hwFrameCtx->device_ctx->hwctx;
VASurfaceID vaSurfaceId = (VASurfaceID)(uintptr_t)frame->data[3];
VADRMPRIMESurfaceDescriptor vaDrmPrimeDescriptor;
VAStatus st = vaExportSurfaceHandle(vaDeviceContext->display,
vaSurfaceId,
VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME_2,
VA_EXPORT_SURFACE_READ_ONLY | VA_EXPORT_SURFACE_COMPOSED_LAYERS,
&vaDrmPrimeDescriptor);
if (st != VA_STATUS_SUCCESS) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"vaExportSurfaceHandle() failed: %d", st);
return false;
}
st = vaSyncSurface(vaDeviceContext->display, vaSurfaceId);
if (st != VA_STATUS_SUCCESS) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"vaSyncSurface() failed: %d", st);
for (uint32_t i = 0; i < vaDrmPrimeDescriptor.num_objects; i++) {
close(vaDrmPrimeDescriptor.objects[i].fd);
}
return false;
}
// Map our VADRMPRIMESurfaceDescriptor to the AVDRMFrameDescriptor our caller wants
drmDescriptor->nb_objects = vaDrmPrimeDescriptor.num_objects;
for (uint32_t i = 0; i < vaDrmPrimeDescriptor.num_objects; i++) {
drmDescriptor->objects[i].fd = vaDrmPrimeDescriptor.objects[i].fd;
drmDescriptor->objects[i].size = vaDrmPrimeDescriptor.objects[i].size;
drmDescriptor->objects[i].format_modifier = vaDrmPrimeDescriptor.objects[i].drm_format_modifier;
}
drmDescriptor->nb_layers = vaDrmPrimeDescriptor.num_layers;
for (uint32_t i = 0; i < vaDrmPrimeDescriptor.num_layers; i++) {
drmDescriptor->layers[i].format = vaDrmPrimeDescriptor.layers[i].drm_format;
drmDescriptor->layers[i].nb_planes = vaDrmPrimeDescriptor.layers[i].num_planes;
for (uint32_t j = 0; j < vaDrmPrimeDescriptor.layers[i].num_planes; j++) {
drmDescriptor->layers[i].planes[j].object_index = vaDrmPrimeDescriptor.layers[i].object_index[j];
drmDescriptor->layers[i].planes[j].offset = vaDrmPrimeDescriptor.layers[i].offset[j];
drmDescriptor->layers[i].planes[j].pitch = vaDrmPrimeDescriptor.layers[i].pitch[j];
}
}
return true;
}
void VAAPIRenderer::unmapDrmPrimeFrame(AVDRMFrameDescriptor* drmDescriptor)
{
for (int i = 0; i < drmDescriptor->nb_objects; i++) {
close(drmDescriptor->objects[i].fd);
}
}
#endif
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