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Introduce a new FFMPEG frontend renderer: EGLRenderer

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Right now this renderer works on X11 & Wayland with VAAPI as a backend.

Some rendering latency benchmarks on my `i7-10510U` (with
`intel-media-driver` 20.1.1 which cause a *huge* regression with the
SDL_Renderer):
|             | X11    | Wayland |
| Before      | 6.78ms | 22.50ms |
| EGLRenderer | 0.76ms | 00.77ms |

Signed-off-by: Antoine Damhet <antoine.damhet@lse.epita.fr>
This commit is contained in:
Antoine Damhet 2020-04-13 10:40:28 +02:00
commit 0a396f3112
11 changed files with 761 additions and 1 deletions
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23
app/streaming/video/ffmpeg-renderers/egl_extensions.cpp Normal file
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// vim: noai:ts=4:sw=4:softtabstop=4:expandtab
#define GL_GLEXT_PROTOTYPES
#include "renderer.h"
#include <SDL_egl.h>
static QStringList egl_get_extensions(EGLDisplay dpy) {
const auto EGLExtensionsStr = eglQueryString(dpy, EGL_EXTENSIONS);
if (!EGLExtensionsStr) {
SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION, "Unable to get EGL extensions");
return QStringList();
}
return QString(EGLExtensionsStr).split(" ");
}
EGLExtensions::EGLExtensions(EGLDisplay dpy) :
m_Extensions(egl_get_extensions(dpy))
{}
bool EGLExtensions::isSupported(const QString &extension) const {
return m_Extensions.contains(extension);
}