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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1752491508; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=/DKBN3+7PHd5LpCAXXeTGQanR81sYEgVkI6B9fYUCVQ=; b=igtnETdx4AXZEIoF6gcapg/8PrBRg+/DS60qyBpZJIMoRQqJZupKRVYWE/PbABpP/XznzP BPZ1akSks1PSe3O7P9jNv4wW8Jhc0my4eMyHI9reYT7OiFZJObgdhfkSGmJxLUbzA7EeIM E+xxOXMqG0LiipLEu+wTXD4a8Y4A5Qw= X-MC-Unique: W2ZyASOPOMa5pM16q6dCJw-1 X-Mimecast-MFC-AGG-ID: W2ZyASOPOMa5pM16q6dCJw_1752491501 From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Cc: stefanha@redhat.com, Vivek Kasireddy , Gerd Hoffmann , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Dmitry Osipenko , Frediano Ziglio , Dongwon Kim , Michael Scherle Subject: [PULL 09/13] ui/spice: Blit the scanout texture if its memory layout is not linear Date: Mon, 14 Jul 2025 15:10:32 +0400 Message-ID: <20250714111039.4150419-10-marcandre.lureau@redhat.com> In-Reply-To: <20250714111039.4150419-1-marcandre.lureau@redhat.com> References: <20250714111039.4150419-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 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=170.10.129.124; envelope-from=marcandre.lureau@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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 @redhat.com) X-ZM-MESSAGEID: 1752493931274116600 From: Vivek Kasireddy In cases where the scanout buffer is provided as a texture (e.g. Virgl) we need to check to see if it has a linear memory layout or not. If it doesn't have a linear layout, then blitting it onto the texture associated with the display surface (which already has a linear layout) seems to ensure that there is no corruption seen regardless of which encoder or decoder is used. Cc: Gerd Hoffmann Cc: Marc-Andr=C3=A9 Lureau Cc: Dmitry Osipenko Cc: Frediano Ziglio Cc: Dongwon Kim Cc: Michael Scherle Reviewed-by: Marc-Andr=C3=A9 Lureau Signed-off-by: Vivek Kasireddy Message-Id: <20250617043546.1022779-8-vivek.kasireddy@intel.com> --- include/ui/spice-display.h | 3 ++ ui/spice-display.c | 81 +++++++++++++++++++++++++++++++++++--- 2 files changed, 78 insertions(+), 6 deletions(-) diff --git a/include/ui/spice-display.h b/include/ui/spice-display.h index 9bdde78266..690ece7380 100644 --- a/include/ui/spice-display.h +++ b/include/ui/spice-display.h @@ -132,6 +132,9 @@ struct SimpleSpiceDisplay { egl_fb guest_fb; egl_fb blit_fb; egl_fb cursor_fb; + bool backing_y_0_top; + bool blit_scanout_texture; + bool new_scanout_texture; bool have_hot; #endif }; diff --git a/ui/spice-display.c b/ui/spice-display.c index 854a97c198..9ce622cefc 100644 --- a/ui/spice-display.c +++ b/ui/spice-display.c @@ -1086,7 +1086,7 @@ static void qemu_spice_gl_scanout_texture(DisplayChan= geListener *dcl, { SimpleSpiceDisplay *ssd =3D container_of(dcl, SimpleSpiceDisplay, dcl); EGLint offset[DMABUF_MAX_PLANES], stride[DMABUF_MAX_PLANES], fourcc = =3D 0; - int fd[DMABUF_MAX_PLANES], num_planes; + int fd[DMABUF_MAX_PLANES], num_planes, i; uint64_t modifier; =20 assert(tex_id); @@ -1098,11 +1098,26 @@ static void qemu_spice_gl_scanout_texture(DisplayCh= angeListener *dcl, =20 trace_qemu_spice_gl_scanout_texture(ssd->qxl.id, w, h, fourcc); =20 - /* note: spice server will close the fd */ - spice_server_gl_scanout(&ssd->qxl, fd, backing_width, backing_height, - (uint32_t *)offset, (uint32_t *)stride, num_pl= anes, - fourcc, modifier, y_0_top); - qemu_spice_gl_monitor_config(ssd, x, y, w, h); + if (spice_remote_client && modifier !=3D DRM_FORMAT_MOD_LINEAR) { + egl_fb_destroy(&ssd->guest_fb); + egl_fb_setup_for_tex(&ssd->guest_fb, + backing_width, backing_height, + tex_id, false); + ssd->backing_y_0_top =3D y_0_top; + ssd->blit_scanout_texture =3D true; + ssd->new_scanout_texture =3D true; + + for (i =3D 0; i < num_planes; i++) { + close(fd[i]); + } + } else { + /* note: spice server will close the fd */ + spice_server_gl_scanout(&ssd->qxl, fd, backing_width, backing_heig= ht, + (uint32_t *)offset, (uint32_t *)stride, + num_planes, fourcc, modifier, y_0_top); + qemu_spice_gl_monitor_config(ssd, x, y, w, h); + } + ssd->have_surface =3D false; ssd->have_scanout =3D true; } @@ -1168,6 +1183,50 @@ static void qemu_spice_gl_release_dmabuf(DisplayChan= geListener *dcl, egl_dmabuf_release_texture(dmabuf); } =20 +static bool spice_gl_blit_scanout_texture(SimpleSpiceDisplay *ssd, + egl_fb *scanout_tex_fb) +{ + uint32_t offsets[DMABUF_MAX_PLANES], strides[DMABUF_MAX_PLANES]; + int fds[DMABUF_MAX_PLANES], num_planes, fourcc; + uint64_t modifier; + bool ret; + + egl_fb_destroy(scanout_tex_fb); + egl_fb_setup_for_tex(scanout_tex_fb, + surface_width(ssd->ds), surface_height(ssd->ds), + ssd->ds->texture, false); + egl_fb_blit(scanout_tex_fb, &ssd->guest_fb, false); + glFlush(); + + if (!ssd->new_scanout_texture) { + return true; + } + + ret =3D egl_dmabuf_export_texture(ssd->ds->texture, + fds, + (EGLint *)offsets, + (EGLint *)strides, + &fourcc, + &num_planes, + &modifier); + if (!ret) { + error_report("spice: failed to get fd for texture"); + return false; + } + + spice_server_gl_scanout(&ssd->qxl, fds, + surface_width(ssd->ds), + surface_height(ssd->ds), + (uint32_t *)offsets, (uint32_t *)strides, + num_planes, fourcc, modifier, + ssd->backing_y_0_top); + qemu_spice_gl_monitor_config(ssd, 0, 0, + surface_width(ssd->ds), + surface_height(ssd->ds)); + ssd->new_scanout_texture =3D false; + return true; +} + static void qemu_spice_gl_update(DisplayChangeListener *dcl, uint32_t x, uint32_t y, uint32_t w, uint3= 2_t h) { @@ -1175,6 +1234,7 @@ static void qemu_spice_gl_update(DisplayChangeListene= r *dcl, EGLint fourcc =3D 0; bool render_cursor =3D false; bool y_0_top =3D false; /* FIXME */ + bool ret; uint32_t width, height, texture; =20 if (!ssd->have_scanout) { @@ -1269,6 +1329,15 @@ static void qemu_spice_gl_update(DisplayChangeListen= er *dcl, glFlush(); } =20 + if (spice_remote_client && ssd->blit_scanout_texture) { + egl_fb scanout_tex_fb; + + ret =3D spice_gl_blit_scanout_texture(ssd, &scanout_tex_fb); + if (!ret) { + return; + } + } + trace_qemu_spice_gl_update(ssd->qxl.id, w, h, x, y); qemu_spice_gl_block(ssd, true); glFlush(); --=20 2.50.0