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a="399763768" X-IronPort-AV: E=Sophos;i="6.05,206,1701158400"; d="scan'208";a="399763768" X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10957"; a="904297451" X-IronPort-AV: E=Sophos;i="6.05,206,1701158400"; d="scan'208";a="904297451" From: Vivek Kasireddy To: qemu-devel@nongnu.org Cc: Vivek Kasireddy , Gerd Hoffmann , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Frediano Ziglio , Dongwon Kim Subject: [PATCH v1 6/7] ui/console-gl: Add a helper to create a texture with linear memory layout Date: Fri, 19 Jan 2024 16:30:12 -0800 Message-Id: <20240120003013.1829757-7-vivek.kasireddy@intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240120003013.1829757-1-vivek.kasireddy@intel.com> References: <20240120003013.1829757-1-vivek.kasireddy@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=192.55.52.120; envelope-from=vivek.kasireddy@intel.com; helo=mgamail.intel.com X-Spam_score_int: -68 X-Spam_score: -6.9 X-Spam_bar: ------ X-Spam_report: (-6.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-2.519, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1705712022738100002 There are cases where we do not want the memory layout of a texture to be tiled as the component processing the texture memory would not know how to de-tile either via software or hardware. Therefore, ensuring that the memory backing the texture has a linear layout is absolutely necessary in these situations. Note that, requesting GL implementation to create a texture with linear memory layout can only be done using memory objects. And, a memory object can be created by importing a dmabuf fd. Cc: Gerd Hoffmann Cc: Marc-Andr=C3=A9 Lureau Cc: Frediano Ziglio Cc: Dongwon Kim Signed-off-by: Vivek Kasireddy --- include/ui/console.h | 2 ++ ui/console-gl.c | 26 ++++++++++++++++++++++++++ 2 files changed, 28 insertions(+) diff --git a/include/ui/console.h b/include/ui/console.h index a4a49ffc64..e53e3ce03e 100644 --- a/include/ui/console.h +++ b/include/ui/console.h @@ -444,6 +444,8 @@ bool console_gl_check_format(DisplayChangeListener *dcl, pixman_format_code_t format); void surface_gl_create_texture(QemuGLShader *gls, DisplaySurface *surface); +void surface_gl_create_texture_from_fd(DisplaySurface *surface, + int fd, GLuint *texture); void surface_gl_update_texture(QemuGLShader *gls, DisplaySurface *surface, int x, int y, int w, int h); diff --git a/ui/console-gl.c b/ui/console-gl.c index dee317f42c..2c1b2ae377 100644 --- a/ui/console-gl.c +++ b/ui/console-gl.c @@ -102,6 +102,32 @@ void surface_gl_create_texture(QemuGLShader *gls, glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); } =20 +void surface_gl_create_texture_from_fd(DisplaySurface *surface, + int fd, GLuint *texture) +{ + unsigned long size =3D surface_stride(surface) * surface_height(surfac= e); + GLuint mem_obj; + + if (!epoxy_has_gl_extension("GL_EXT_memory_object") || + !epoxy_has_gl_extension("GL_EXT_memory_object_fd")) { + return; + } + +#ifdef GL_EXT_memory_object_fd + glCreateMemoryObjectsEXT(1, &mem_obj); + glImportMemoryFdEXT(mem_obj, size, GL_HANDLE_TYPE_OPAQUE_FD_EXT, fd); + if (!glIsMemoryObjectEXT(mem_obj)) { + return; + } + + glGenTextures(1, texture); + glBindTexture(GL_TEXTURE_2D, *texture); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_TILING_EXT, GL_LINEAR_TILING= _EXT); + glTexStorageMem2DEXT(GL_TEXTURE_2D, 1, GL_RGBA8, surface_width(surface= ), + surface_height(surface), mem_obj, 0); +#endif +} + void surface_gl_update_texture(QemuGLShader *gls, DisplaySurface *surface, int x, int y, int w, int h) --=20 2.39.2