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https://github.com/hyprwm/Hyprland
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egl: support getting the device via platform_device
a neat EXT
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parent
f2b6ebbf54
commit
b16fb9770c
2 changed files with 81 additions and 14 deletions
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@ -101,7 +101,7 @@ void CHyprOpenGLImpl::initEGL(bool gbm) {
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attrs.push_back(EGL_NONE);
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m_pEglDisplay = m_sProc.eglGetPlatformDisplayEXT(gbm ? EGL_PLATFORM_GBM_KHR : EGL_PLATFORM_DEVICE_EXT, gbm ? m_pGbmDevice : nullptr, attrs.data());
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m_pEglDisplay = m_sProc.eglGetPlatformDisplayEXT(gbm ? EGL_PLATFORM_GBM_KHR : EGL_PLATFORM_DEVICE_EXT, gbm ? m_pGbmDevice : m_pEglDevice, attrs.data());
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if (m_pEglDisplay == EGL_NO_DISPLAY)
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RASSERT(false, "EGL: failed to create a platform display");
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@ -158,6 +158,60 @@ void CHyprOpenGLImpl::initEGL(bool gbm) {
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eglMakeCurrent(m_pEglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, m_pEglContext);
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}
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static bool drmDeviceHasName(const drmDevice* device, const std::string& name) {
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for (size_t i = 0; i < DRM_NODE_MAX; i++) {
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if (!(device->available_nodes & (1 << i)))
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continue;
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if (device->nodes[i] == name)
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return true;
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}
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return false;
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}
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EGLDeviceEXT CHyprOpenGLImpl::eglDeviceFromDRMFD(int drmFD) {
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EGLint nDevices = 0;
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if (!m_sProc.eglQueryDevicesEXT(0, nullptr, &nDevices)) {
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Debug::log(ERR, "eglDeviceFromDRMFD: eglQueryDevicesEXT failed");
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return EGL_NO_DEVICE_EXT;
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}
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if (nDevices <= 0) {
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Debug::log(ERR, "eglDeviceFromDRMFD: no devices");
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return EGL_NO_DEVICE_EXT;
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}
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std::vector<EGLDeviceEXT> devices;
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devices.resize(nDevices);
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if (!m_sProc.eglQueryDevicesEXT(nDevices, devices.data(), &nDevices)) {
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Debug::log(ERR, "eglDeviceFromDRMFD: eglQueryDevicesEXT failed (2)");
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return EGL_NO_DEVICE_EXT;
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}
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drmDevice* drmDev = nullptr;
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if (int ret = drmGetDevice(drmFD, &drmDev); ret < 0) {
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Debug::log(ERR, "eglDeviceFromDRMFD: drmGetDevice failed");
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return EGL_NO_DEVICE_EXT;
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}
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for (auto& d : devices) {
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auto devName = m_sProc.eglQueryDeviceStringEXT(d, EGL_DRM_DEVICE_FILE_EXT);
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if (!devName)
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continue;
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if (drmDeviceHasName(drmDev, devName)) {
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Debug::log(LOG, "eglDeviceFromDRMFD: Using device {}", devName);
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drmFreeDevice(&drmDev);
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return d;
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}
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}
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drmFreeDevice(&drmDev);
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Debug::log(LOG, "eglDeviceFromDRMFD: No drm devices found");
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return EGL_NO_DEVICE_EXT;
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}
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CHyprOpenGLImpl::CHyprOpenGLImpl() {
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const std::string EGLEXTENSIONS = (const char*)eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
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@ -202,22 +256,33 @@ CHyprOpenGLImpl::CHyprOpenGLImpl() {
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RASSERT(eglBindAPI(EGL_OPENGL_ES_API) != EGL_FALSE, "Couldn't bind to EGL's opengl ES API. This means your gpu driver f'd up. This is not a hyprland issue.");
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// if (m_sProc.eglQueryDevicesEXT) {
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// // TODO:
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// }
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bool success = false;
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if (EGLEXTENSIONS.contains("EXT_platform_device") || !m_sProc.eglQueryDevicesEXT || !m_sProc.eglQueryDeviceStringEXT) {
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m_pEglDevice = eglDeviceFromDRMFD(m_iDRMFD);
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if (EGLEXTENSIONS.contains("KHR_platform_gbm")) {
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m_iGBMFD = openRenderNode(m_iDRMFD);
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if (m_iGBMFD < 0)
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RASSERT(false, "Couldn't open a gbm fd");
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if (m_pEglDevice != EGL_NO_DEVICE_EXT) {
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success = true;
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initEGL(false);
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}
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}
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m_pGbmDevice = gbm_create_device(m_iGBMFD);
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if (!m_pGbmDevice)
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RASSERT(false, "Couldn't open a gbm device");
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if (!success) {
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Debug::log(WARN, "EGL: EXT_platform_device or EGL_EXT_device_query not supported, using gbm");
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if (EGLEXTENSIONS.contains("KHR_platform_gbm")) {
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success = true;
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m_iGBMFD = openRenderNode(m_iDRMFD);
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if (m_iGBMFD < 0)
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RASSERT(false, "Couldn't open a gbm fd");
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initEGL(true);
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} else
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RASSERT(false, "EGL does not support KHR_platform_gbm, this is an issue with your gpu driver.");
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m_pGbmDevice = gbm_create_device(m_iGBMFD);
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if (!m_pGbmDevice)
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RASSERT(false, "Couldn't open a gbm device");
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initEGL(true);
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}
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}
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RASSERT(success, "EGL does not support KHR_platform_gbm or EXT_platform_device, this is an issue with your gpu driver.");
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auto* const EXTENSIONS = (const char*)glGetString(GL_EXTENSIONS);
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RASSERT(EXTENSIONS, "Couldn't retrieve openGL extensions!");
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@ -216,6 +216,7 @@ class CHyprOpenGLImpl {
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gbm_device* m_pGbmDevice = nullptr;
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EGLContext m_pEglContext = nullptr;
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EGLDisplay m_pEglDisplay = nullptr;
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EGLDeviceEXT m_pEglDevice = nullptr;
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bool m_bReloadScreenShader = true; // at launch it can be set
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@ -280,6 +281,7 @@ class CHyprOpenGLImpl {
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void initShaders();
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void initDRMFormats();
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void initEGL(bool gbm);
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EGLDeviceEXT eglDeviceFromDRMFD(int drmFD);
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//
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std::optional<std::vector<uint64_t>> getModsForFormat(EGLint format);
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