From nobody Tue Feb 10 12:57:24 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1507643935817834.3405871078768; Tue, 10 Oct 2017 06:58:55 -0700 (PDT) Received: from localhost ([::1]:35200 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e1v3d-0006lT-3k for importer@patchew.org; Tue, 10 Oct 2017 09:58:53 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38028) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e1v01-000470-G4 for qemu-devel@nongnu.org; Tue, 10 Oct 2017 09:55:12 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1e1uzr-0007Va-PM for qemu-devel@nongnu.org; Tue, 10 Oct 2017 09:55:09 -0400 Received: from mx1.redhat.com ([209.132.183.28]:35180) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1e1uzr-0007UD-EG for qemu-devel@nongnu.org; Tue, 10 Oct 2017 09:54:59 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id A22D381E15; Tue, 10 Oct 2017 13:54:57 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-116-239.ams2.redhat.com [10.36.116.239]) by smtp.corp.redhat.com (Postfix) with ESMTP id D0C466248F; Tue, 10 Oct 2017 13:54:54 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 222214FD40; Tue, 10 Oct 2017 15:54:54 +0200 (CEST) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com A22D381E15 Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=kraxel@redhat.com From: Gerd Hoffmann To: qemu-devel@nongnu.org Date: Tue, 10 Oct 2017 15:54:51 +0200 Message-Id: <20171010135453.6704-5-kraxel@redhat.com> In-Reply-To: <20171010135453.6704-1-kraxel@redhat.com> References: <20171010135453.6704-1-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Tue, 10 Oct 2017 13:54:57 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH 4/6] egl-helpers: add dmabuf import support X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: intel-gvt-dev@lists.freedesktop.org, Gerd Hoffmann , Tina Zhang Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Add helper function to import a dma-buf as opengl texture. Also add a helper to release the texture again. Signed-off-by: Gerd Hoffmann --- include/ui/egl-helpers.h | 3 +++ ui/egl-helpers.c | 46 ++++++++++++++++++++++++++++++++++++++++++++= ++ 2 files changed, 49 insertions(+) diff --git a/include/ui/egl-helpers.h b/include/ui/egl-helpers.h index 81cb255de0..4924fe560d 100644 --- a/include/ui/egl-helpers.h +++ b/include/ui/egl-helpers.h @@ -33,6 +33,9 @@ extern EGLContext qemu_egl_rn_ctx; int egl_rendernode_init(const char *rendernode); int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc= ); =20 +void egl_dmabuf_import_texture(QemuDmaBuf *dmabuf); +void egl_dmabuf_release_texture(QemuDmaBuf *dmabuf); + #endif =20 EGLSurface qemu_egl_init_surface_x11(EGLContext ectx, Window win); diff --git a/ui/egl-helpers.c b/ui/egl-helpers.c index cde9965dea..e7ee337d7e 100644 --- a/ui/egl-helpers.c +++ b/ui/egl-helpers.c @@ -19,6 +19,7 @@ #include =20 #include "qemu/error-report.h" +#include "ui/console.h" #include "ui/egl-helpers.h" =20 EGLDisplay *qemu_egl_display; @@ -241,6 +242,51 @@ int egl_get_fd_for_texture(uint32_t tex_id, EGLint *st= ride, EGLint *fourcc) return fd; } =20 +void egl_dmabuf_import_texture(QemuDmaBuf *dmabuf) +{ + EGLImageKHR image =3D EGL_NO_IMAGE_KHR; + EGLint attrs[] =3D { + EGL_DMA_BUF_PLANE0_FD_EXT, dmabuf->fd, + EGL_DMA_BUF_PLANE0_PITCH_EXT, dmabuf->stride, + EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0, + EGL_WIDTH, dmabuf->width, + EGL_HEIGHT, dmabuf->height, + EGL_LINUX_DRM_FOURCC_EXT, dmabuf->fourcc, + EGL_NONE, /* end of list */ + }; + + if (dmabuf->texture !=3D 0) { + return; + } + + image =3D eglCreateImageKHR(qemu_egl_display, + EGL_NO_CONTEXT, + EGL_LINUX_DMA_BUF_EXT, + NULL, attrs); + if (image =3D=3D EGL_NO_IMAGE_KHR) { + error_report("eglCreateImageKHR failed"); + return; + } + + glGenTextures(1, &dmabuf->texture); + glBindTexture(GL_TEXTURE_2D, dmabuf->texture); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + + glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)image); + eglDestroyImageKHR(qemu_egl_display, image); +} + +void egl_dmabuf_release_texture(QemuDmaBuf *dmabuf) +{ + if (dmabuf->texture =3D=3D 0) { + return; + } + + glDeleteTextures(1, &dmabuf->texture); + dmabuf->texture =3D 0; +} + #endif /* CONFIG_OPENGL_DMABUF */ =20 /* ---------------------------------------------------------------------- = */ --=20 2.9.3