From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52262) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e4Pou-0005KM-AV for qemu-devel@nongnu.org; Tue, 17 Oct 2017 07:14:01 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1e4Pop-0001sD-Hu for qemu-devel@nongnu.org; Tue, 17 Oct 2017 07:14:00 -0400 Received: from mx1.redhat.com ([209.132.183.28]:46316) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1e4Pop-0001ps-9a for qemu-devel@nongnu.org; Tue, 17 Oct 2017 07:13:55 -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 70390276C2E for ; Tue, 17 Oct 2017 11:13:54 +0000 (UTC) From: Gerd Hoffmann Date: Tue, 17 Oct 2017 13:13:48 +0200 Message-Id: <20171017111350.8176-5-kraxel@redhat.com> In-Reply-To: <20171017111350.8176-1-kraxel@redhat.com> References: <20171017111350.8176-1-kraxel@redhat.com> Subject: [Qemu-devel] [PULL 4/6] egl-helpers: add dmabuf import support List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Gerd Hoffmann 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 Message-id: 20171010135453.6704-5-kraxel@redhat.com --- 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); +void egl_dmabuf_import_texture(QemuDmaBuf *dmabuf); +void egl_dmabuf_release_texture(QemuDmaBuf *dmabuf); + #endif 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 #include "qemu/error-report.h" +#include "ui/console.h" #include "ui/egl-helpers.h" EGLDisplay *qemu_egl_display; @@ -241,6 +242,51 @@ int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc) return fd; } +void egl_dmabuf_import_texture(QemuDmaBuf *dmabuf) +{ + EGLImageKHR image = EGL_NO_IMAGE_KHR; + EGLint attrs[] = { + 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 != 0) { + return; + } + + image = eglCreateImageKHR(qemu_egl_display, + EGL_NO_CONTEXT, + EGL_LINUX_DMA_BUF_EXT, + NULL, attrs); + if (image == 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 == 0) { + return; + } + + glDeleteTextures(1, &dmabuf->texture); + dmabuf->texture = 0; +} + #endif /* CONFIG_OPENGL_DMABUF */ /* ---------------------------------------------------------------------- */ -- 2.9.3