[PATCH 11/27] ui: split the GL context in a different object

[marcandre.lureau@redhat.com]

From: Marc-André Lureau <marcandre.lureau@redhat.com>

This will allow to have one GL context but a variable number of
listeners.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
 include/ui/console.h       | 31 ++++++++++++++++++++-----------
 include/ui/egl-context.h   |  6 +++---
 include/ui/gtk.h           | 11 ++++++-----
 include/ui/sdl2.h          |  7 ++++---
 include/ui/spice-display.h |  1 +
 ui/console.c               | 24 +++++++++++++++---------
 ui/egl-context.c           |  6 +++---
 ui/egl-headless.c          | 21 ++++++++++++++-------
 ui/gtk-egl.c               | 10 +++++-----
 ui/gtk-gl-area.c           |  8 ++++----
 ui/gtk.c                   | 24 ++++++++++++++++--------
 ui/sdl2-gl.c               | 10 +++++-----
 ui/sdl2.c                  | 13 +++++++++----
 ui/spice-display.c         | 18 +++++++++++-------
 14 files changed, 116 insertions(+), 74 deletions(-)

diff --git a/include/ui/console.h b/include/ui/console.h
index a8c2b9f479..b271bb1c51 100644
--- a/include/ui/console.h
+++ b/include/ui/console.h
@@ -171,6 +171,7 @@ typedef struct QemuDmaBuf {
 } QemuDmaBuf;
 
 typedef struct DisplayState DisplayState;
+typedef struct DisplayGLCtx DisplayGLCtx;
 
 typedef struct DisplayChangeListenerOps {
     const char *dpy_name;
@@ -205,16 +206,6 @@ typedef struct DisplayChangeListenerOps {
     void (*dpy_cursor_define)(DisplayChangeListener *dcl,
                               QEMUCursor *cursor);
 
-    /* required if GL */
-    QEMUGLContext (*dpy_gl_ctx_create)(DisplayChangeListener *dcl,
-                                       QEMUGLParams *params);
-    /* required if GL */
-    void (*dpy_gl_ctx_destroy)(DisplayChangeListener *dcl,
-                               QEMUGLContext ctx);
-    /* required if GL */
-    int (*dpy_gl_ctx_make_current)(DisplayChangeListener *dcl,
-                                   QEMUGLContext ctx);
-
     /* required if GL */
     void (*dpy_gl_scanout_disable)(DisplayChangeListener *dcl);
     /* required if GL */
@@ -255,6 +246,24 @@ struct DisplayChangeListener {
     QLIST_ENTRY(DisplayChangeListener) next;
 };
 
+typedef struct DisplayGLCtxOps {
+    /* We only check if the GLCtx is compatible with a DCL via ops. A natural
+     * evolution of this would be a callback to check some runtime requirements
+     * and allow various DCL kinds. */
+    const DisplayChangeListenerOps *compatible_dcl;
+
+    QEMUGLContext (*dpy_gl_ctx_create)(DisplayGLCtx *dgc,
+                                       QEMUGLParams *params);
+    void (*dpy_gl_ctx_destroy)(DisplayGLCtx *dgc,
+                               QEMUGLContext ctx);
+    int (*dpy_gl_ctx_make_current)(DisplayGLCtx *dgc,
+                                   QEMUGLContext ctx);
+} DisplayGLCtxOps;
+
+struct DisplayGLCtx {
+    const DisplayGLCtxOps *ops;
+};
+
 DisplayState *init_displaystate(void);
 DisplaySurface *qemu_create_displaysurface_from(int width, int height,
                                                 pixman_format_code_t format,
@@ -411,7 +420,7 @@ void graphic_hw_gl_block(QemuConsole *con, bool block);
 
 void qemu_console_early_init(void);
 
-void qemu_console_set_display_gl_ctx(QemuConsole *con, DisplayChangeListener *dcl);
+void qemu_console_set_display_gl_ctx(QemuConsole *con, DisplayGLCtx *ctx);
 
 QemuConsole *qemu_console_lookup_by_index(unsigned int index);
 QemuConsole *qemu_console_lookup_by_device(DeviceState *dev, uint32_t head);
diff --git a/include/ui/egl-context.h b/include/ui/egl-context.h
index 9374fe41e3..c2761d747a 100644
--- a/include/ui/egl-context.h
+++ b/include/ui/egl-context.h
@@ -4,10 +4,10 @@
 #include "ui/console.h"
 #include "ui/egl-helpers.h"
 
-QEMUGLContext qemu_egl_create_context(DisplayChangeListener *dcl,
+QEMUGLContext qemu_egl_create_context(DisplayGLCtx *dgc,
                                       QEMUGLParams *params);
-void qemu_egl_destroy_context(DisplayChangeListener *dcl, QEMUGLContext ctx);
-int qemu_egl_make_context_current(DisplayChangeListener *dcl,
+void qemu_egl_destroy_context(DisplayGLCtx *dgc, QEMUGLContext ctx);
+int qemu_egl_make_context_current(DisplayGLCtx *dgc,
                                   QEMUGLContext ctx);
 
 #endif /* EGL_CONTEXT_H */
diff --git a/include/ui/gtk.h b/include/ui/gtk.h
index 5ae0ad60a6..802c619a39 100644
--- a/include/ui/gtk.h
+++ b/include/ui/gtk.h
@@ -28,6 +28,7 @@ typedef struct GtkDisplayState GtkDisplayState;
 
 typedef struct VirtualGfxConsole {
     GtkWidget *drawing_area;
+    DisplayGLCtx dgc;
     DisplayChangeListener dcl;
     QKbdState *kbd;
     DisplaySurface *ds;
@@ -97,7 +98,7 @@ void gd_egl_update(DisplayChangeListener *dcl,
 void gd_egl_refresh(DisplayChangeListener *dcl);
 void gd_egl_switch(DisplayChangeListener *dcl,
                    DisplaySurface *surface);
-QEMUGLContext gd_egl_create_context(DisplayChangeListener *dcl,
+QEMUGLContext gd_egl_create_context(DisplayGLCtx *dgc,
                                     QEMUGLParams *params);
 void gd_egl_scanout_disable(DisplayChangeListener *dcl);
 void gd_egl_scanout_texture(DisplayChangeListener *dcl,
@@ -119,7 +120,7 @@ void gd_egl_release_dmabuf(DisplayChangeListener *dcl,
 void gd_egl_scanout_flush(DisplayChangeListener *dcl,
                           uint32_t x, uint32_t y, uint32_t w, uint32_t h);
 void gtk_egl_init(DisplayGLMode mode);
-int gd_egl_make_current(DisplayChangeListener *dcl,
+int gd_egl_make_current(DisplayGLCtx *dgc,
                         QEMUGLContext ctx);
 
 /* ui/gtk-gl-area.c */
@@ -130,9 +131,9 @@ void gd_gl_area_update(DisplayChangeListener *dcl,
 void gd_gl_area_refresh(DisplayChangeListener *dcl);
 void gd_gl_area_switch(DisplayChangeListener *dcl,
                        DisplaySurface *surface);
-QEMUGLContext gd_gl_area_create_context(DisplayChangeListener *dcl,
+QEMUGLContext gd_gl_area_create_context(DisplayGLCtx *dgc,
                                         QEMUGLParams *params);
-void gd_gl_area_destroy_context(DisplayChangeListener *dcl,
+void gd_gl_area_destroy_context(DisplayGLCtx *dgc,
                                 QEMUGLContext ctx);
 void gd_gl_area_scanout_dmabuf(DisplayChangeListener *dcl,
                                QemuDmaBuf *dmabuf);
@@ -147,7 +148,7 @@ void gd_gl_area_scanout_disable(DisplayChangeListener *dcl);
 void gd_gl_area_scanout_flush(DisplayChangeListener *dcl,
                               uint32_t x, uint32_t y, uint32_t w, uint32_t h);
 void gtk_gl_area_init(void);
-int gd_gl_area_make_current(DisplayChangeListener *dcl,
+int gd_gl_area_make_current(DisplayGLCtx *dgc,
                             QEMUGLContext ctx);
 
 #endif /* UI_GTK_H */
diff --git a/include/ui/sdl2.h b/include/ui/sdl2.h
index f85c117a78..71bcf7ebda 100644
--- a/include/ui/sdl2.h
+++ b/include/ui/sdl2.h
@@ -16,6 +16,7 @@
 #endif
 
 struct sdl2_console {
+    DisplayGLCtx dgc;
     DisplayChangeListener dcl;
     DisplaySurface *surface;
     DisplayOptions *opts;
@@ -65,10 +66,10 @@ void sdl2_gl_switch(DisplayChangeListener *dcl,
 void sdl2_gl_refresh(DisplayChangeListener *dcl);
 void sdl2_gl_redraw(struct sdl2_console *scon);
 
-QEMUGLContext sdl2_gl_create_context(DisplayChangeListener *dcl,
+QEMUGLContext sdl2_gl_create_context(DisplayGLCtx *dgc,
                                      QEMUGLParams *params);
-void sdl2_gl_destroy_context(DisplayChangeListener *dcl, QEMUGLContext ctx);
-int sdl2_gl_make_context_current(DisplayChangeListener *dcl,
+void sdl2_gl_destroy_context(DisplayGLCtx *dgc, QEMUGLContext ctx);
+int sdl2_gl_make_context_current(DisplayGLCtx *dgc,
                                  QEMUGLContext ctx);
 
 void sdl2_gl_scanout_disable(DisplayChangeListener *dcl);
diff --git a/include/ui/spice-display.h b/include/ui/spice-display.h
index ed298d58f0..a2fbf62c52 100644
--- a/include/ui/spice-display.h
+++ b/include/ui/spice-display.h
@@ -86,6 +86,7 @@ typedef struct SimpleSpiceCursor SimpleSpiceCursor;
 
 struct SimpleSpiceDisplay {
     DisplaySurface *ds;
+    DisplayGLCtx dgc;
     DisplayChangeListener dcl;
     void *buf;
     int bufsize;
diff --git a/ui/console.c b/ui/console.c
index a0910671f7..07357fd328 100644
--- a/ui/console.c
+++ b/ui/console.c
@@ -127,7 +127,7 @@ struct QemuConsole {
     DisplayState *ds;
     DisplaySurface *surface;
     int dcls;
-    DisplayChangeListener *gl;
+    DisplayGLCtx *gl;
     int gl_block;
     QEMUTimer *gl_unblock_timer;
     int window_id;
@@ -1517,16 +1517,23 @@ static bool dpy_compatible_with(QemuConsole *con,
     return true;
 }
 
-void qemu_console_set_display_gl_ctx(QemuConsole *con, DisplayChangeListener *dcl)
+void qemu_console_set_display_gl_ctx(QemuConsole *con, DisplayGLCtx *gl)
 {
     /* display has opengl support */
-    assert(dcl->con);
-    if (dcl->con->gl) {
-        fprintf(stderr, "can't register two opengl displays (%s, %s)\n",
-                dcl->ops->dpy_name, dcl->con->gl->ops->dpy_name);
+    assert(con);
+    if (con->gl) {
+        error_report("The console already has an OpenGL context.");
         exit(1);
     }
-    dcl->con->gl = dcl;
+    con->gl = gl;
+}
+
+static bool dpy_gl_compatible_with(QemuConsole *con, DisplayChangeListener *dcl)
+{
+    if (!con->gl)
+        return true;
+
+    return con->gl->ops->compatible_dcl == dcl->ops;
 }
 
 void register_displaychangelistener(DisplayChangeListener *dcl)
@@ -1539,8 +1546,7 @@ void register_displaychangelistener(DisplayChangeListener *dcl)
 
     assert(!dcl->ds);
 
-    if (dcl->con && dcl->con->gl &&
-        dcl->con->gl != dcl) {
+    if (dcl->con && !dpy_gl_compatible_with(dcl->con, dcl)) {
         error_report("Display %s is incompatible with the GL context",
                      dcl->ops->dpy_name);
         exit(1);
diff --git a/ui/egl-context.c b/ui/egl-context.c
index 368ffa49d8..eb5f520fc4 100644
--- a/ui/egl-context.c
+++ b/ui/egl-context.c
@@ -1,7 +1,7 @@
 #include "qemu/osdep.h"
 #include "ui/egl-context.h"
 
-QEMUGLContext qemu_egl_create_context(DisplayChangeListener *dcl,
+QEMUGLContext qemu_egl_create_context(DisplayGLCtx *dgc,
                                       QEMUGLParams *params)
 {
    EGLContext ctx;
@@ -24,12 +24,12 @@ QEMUGLContext qemu_egl_create_context(DisplayChangeListener *dcl,
    return ctx;
 }
 
-void qemu_egl_destroy_context(DisplayChangeListener *dcl, QEMUGLContext ctx)
+void qemu_egl_destroy_context(DisplayGLCtx *dgc, QEMUGLContext ctx)
 {
     eglDestroyContext(qemu_egl_display, ctx);
 }
 
-int qemu_egl_make_context_current(DisplayChangeListener *dcl,
+int qemu_egl_make_context_current(DisplayGLCtx *dgc,
                                   QEMUGLContext ctx)
 {
    return eglMakeCurrent(qemu_egl_display,
diff --git a/ui/egl-headless.c b/ui/egl-headless.c
index 773520bc17..f492591d4e 100644
--- a/ui/egl-headless.c
+++ b/ui/egl-headless.c
@@ -38,12 +38,12 @@ static void egl_gfx_switch(DisplayChangeListener *dcl,
     edpy->ds = new_surface;
 }
 
-static QEMUGLContext egl_create_context(DisplayChangeListener *dcl,
+static QEMUGLContext egl_create_context(DisplayGLCtx *dgc,
                                         QEMUGLParams *params)
 {
     eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
                    qemu_egl_rn_ctx);
-    return qemu_egl_create_context(dcl, params);
+    return qemu_egl_create_context(dgc, params);
 }
 
 static void egl_scanout_disable(DisplayChangeListener *dcl)
@@ -157,10 +157,6 @@ static const DisplayChangeListenerOps egl_ops = {
     .dpy_gfx_update          = egl_gfx_update,
     .dpy_gfx_switch          = egl_gfx_switch,
 
-    .dpy_gl_ctx_create       = egl_create_context,
-    .dpy_gl_ctx_destroy      = qemu_egl_destroy_context,
-    .dpy_gl_ctx_make_current = qemu_egl_make_context_current,
-
     .dpy_gl_scanout_disable  = egl_scanout_disable,
     .dpy_gl_scanout_texture  = egl_scanout_texture,
     .dpy_gl_scanout_dmabuf   = egl_scanout_dmabuf,
@@ -170,6 +166,13 @@ static const DisplayChangeListenerOps egl_ops = {
     .dpy_gl_update           = egl_scanout_flush,
 };
 
+static const DisplayGLCtxOps eglctx_ops = {
+    .compatible_dcl          = &egl_ops,
+    .dpy_gl_ctx_create       = egl_create_context,
+    .dpy_gl_ctx_destroy      = qemu_egl_destroy_context,
+    .dpy_gl_ctx_make_current = qemu_egl_make_context_current,
+};
+
 static void early_egl_headless_init(DisplayOptions *opts)
 {
     display_opengl = 1;
@@ -188,6 +191,8 @@ static void egl_headless_init(DisplayState *ds, DisplayOptions *opts)
     }
 
     for (idx = 0;; idx++) {
+        DisplayGLCtx *ctx;
+
         con = qemu_console_lookup_by_index(idx);
         if (!con || !qemu_console_is_graphic(con)) {
             break;
@@ -197,7 +202,9 @@ static void egl_headless_init(DisplayState *ds, DisplayOptions *opts)
         edpy->dcl.con = con;
         edpy->dcl.ops = &egl_ops;
         edpy->gls = qemu_gl_init_shader();
-        qemu_console_set_display_gl_ctx(con, &edpy->dcl);
+        ctx = g_new0(DisplayGLCtx, 1);
+        ctx->ops = &eglctx_ops;
+        qemu_console_set_display_gl_ctx(con, ctx);
         register_displaychangelistener(&edpy->dcl);
     }
 }
diff --git a/ui/gtk-egl.c b/ui/gtk-egl.c
index 48603abfbd..199717495d 100644
--- a/ui/gtk-egl.c
+++ b/ui/gtk-egl.c
@@ -163,14 +163,14 @@ void gd_egl_switch(DisplayChangeListener *dcl,
     }
 }
 
-QEMUGLContext gd_egl_create_context(DisplayChangeListener *dcl,
+QEMUGLContext gd_egl_create_context(DisplayGLCtx *dgc,
                                     QEMUGLParams *params)
 {
-    VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
+    VirtualConsole *vc = container_of(dgc, VirtualConsole, gfx.dgc);
 
     eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
                    vc->gfx.esurface, vc->gfx.ectx);
-    return qemu_egl_create_context(dcl, params);
+    return qemu_egl_create_context(dgc, params);
 }
 
 void gd_egl_scanout_disable(DisplayChangeListener *dcl)
@@ -303,10 +303,10 @@ void gtk_egl_init(DisplayGLMode mode)
     display_opengl = 1;
 }
 
-int gd_egl_make_current(DisplayChangeListener *dcl,
+int gd_egl_make_current(DisplayGLCtx *dgc,
                         QEMUGLContext ctx)
 {
-    VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
+    VirtualConsole *vc = container_of(dgc, VirtualConsole, gfx.dgc);
 
     return eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
                           vc->gfx.esurface, ctx);
diff --git a/ui/gtk-gl-area.c b/ui/gtk-gl-area.c
index e895938a96..f0d00d000d 100644
--- a/ui/gtk-gl-area.c
+++ b/ui/gtk-gl-area.c
@@ -138,10 +138,10 @@ void gd_gl_area_switch(DisplayChangeListener *dcl,
     }
 }
 
-QEMUGLContext gd_gl_area_create_context(DisplayChangeListener *dcl,
+QEMUGLContext gd_gl_area_create_context(DisplayGLCtx *dgc,
                                         QEMUGLParams *params)
 {
-    VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
+    VirtualConsole *vc = container_of(dgc, VirtualConsole, gfx.dgc);
     GdkWindow *window;
     GdkGLContext *ctx;
     GError *err = NULL;
@@ -167,7 +167,7 @@ QEMUGLContext gd_gl_area_create_context(DisplayChangeListener *dcl,
     return ctx;
 }
 
-void gd_gl_area_destroy_context(DisplayChangeListener *dcl, QEMUGLContext ctx)
+void gd_gl_area_destroy_context(DisplayGLCtx *dgc, QEMUGLContext ctx)
 {
     /* FIXME */
 }
@@ -238,7 +238,7 @@ void gtk_gl_area_init(void)
     display_opengl = 1;
 }
 
-int gd_gl_area_make_current(DisplayChangeListener *dcl,
+int gd_gl_area_make_current(DisplayGLCtx *dgc,
                             QEMUGLContext ctx)
 {
     gdk_gl_context_make_current(ctx);
diff --git a/ui/gtk.c b/ui/gtk.c
index d8b3784bf0..63ce4fd980 100644
--- a/ui/gtk.c
+++ b/ui/gtk.c
@@ -643,9 +643,6 @@ static const DisplayChangeListenerOps dcl_gl_area_ops = {
     .dpy_mouse_set        = gd_mouse_set,
     .dpy_cursor_define    = gd_cursor_define,
 
-    .dpy_gl_ctx_create       = gd_gl_area_create_context,
-    .dpy_gl_ctx_destroy      = gd_gl_area_destroy_context,
-    .dpy_gl_ctx_make_current = gd_gl_area_make_current,
     .dpy_gl_scanout_texture  = gd_gl_area_scanout_texture,
     .dpy_gl_scanout_disable  = gd_gl_area_scanout_disable,
     .dpy_gl_update           = gd_gl_area_scanout_flush,
@@ -653,8 +650,14 @@ static const DisplayChangeListenerOps dcl_gl_area_ops = {
     .dpy_has_dmabuf          = gd_has_dmabuf,
 };
 
-#ifdef CONFIG_X11
+static const DisplayGLCtxOps gl_area_ctx_ops = {
+    .compatible_dcl          = &dcl_gl_area_ops,
+    .dpy_gl_ctx_create       = gd_gl_area_create_context,
+    .dpy_gl_ctx_destroy      = gd_gl_area_destroy_context,
+    .dpy_gl_ctx_make_current = gd_gl_area_make_current,
+};
 
+#ifdef CONFIG_X11
 static const DisplayChangeListenerOps dcl_egl_ops = {
     .dpy_name             = "gtk-egl",
     .dpy_gfx_update       = gd_egl_update,
@@ -664,9 +667,6 @@ static const DisplayChangeListenerOps dcl_egl_ops = {
     .dpy_mouse_set        = gd_mouse_set,
     .dpy_cursor_define    = gd_cursor_define,
 
-    .dpy_gl_ctx_create       = gd_egl_create_context,
-    .dpy_gl_ctx_destroy      = qemu_egl_destroy_context,
-    .dpy_gl_ctx_make_current = gd_egl_make_current,
     .dpy_gl_scanout_disable  = gd_egl_scanout_disable,
     .dpy_gl_scanout_texture  = gd_egl_scanout_texture,
     .dpy_gl_scanout_dmabuf   = gd_egl_scanout_dmabuf,
@@ -677,6 +677,12 @@ static const DisplayChangeListenerOps dcl_egl_ops = {
     .dpy_has_dmabuf          = gd_has_dmabuf,
 };
 
+static const DisplayGLCtxOps egl_ctx_ops = {
+    .compatible_dcl          = &dcl_egl_ops,
+    .dpy_gl_ctx_create       = gd_egl_create_context,
+    .dpy_gl_ctx_destroy      = qemu_egl_destroy_context,
+    .dpy_gl_ctx_make_current = gd_egl_make_current,
+};
 #endif
 
 #endif /* CONFIG_OPENGL */
@@ -2034,6 +2040,7 @@ static GSList *gd_vc_gfx_init(GtkDisplayState *s, VirtualConsole *vc,
             g_signal_connect(vc->gfx.drawing_area, "realize",
                              G_CALLBACK(gl_area_realize), vc);
             vc->gfx.dcl.ops = &dcl_gl_area_ops;
+            vc->gfx.dgc.ops = &gl_area_ctx_ops;
         } else {
 #ifdef CONFIG_X11
             vc->gfx.drawing_area = gtk_drawing_area_new();
@@ -2048,6 +2055,7 @@ static GSList *gd_vc_gfx_init(GtkDisplayState *s, VirtualConsole *vc,
             gtk_widget_set_double_buffered(vc->gfx.drawing_area, FALSE);
 #pragma GCC diagnostic pop
             vc->gfx.dcl.ops = &dcl_egl_ops;
+            vc->gfx.dgc.ops = &egl_ctx_ops;
             vc->gfx.has_dmabuf = qemu_egl_has_dmabuf();
 #else
             abort();
@@ -2083,7 +2091,7 @@ static GSList *gd_vc_gfx_init(GtkDisplayState *s, VirtualConsole *vc,
     vc->gfx.dcl.con = con;
 
     if (display_opengl) {
-        qemu_console_set_display_gl_ctx(con, &vc->gfx.dcl);
+        qemu_console_set_display_gl_ctx(con, &vc->gfx.dgc);
     }
     register_displaychangelistener(&vc->gfx.dcl);
 
diff --git a/ui/sdl2-gl.c b/ui/sdl2-gl.c
index 5b950fbbea..39cab8cde7 100644
--- a/ui/sdl2-gl.c
+++ b/ui/sdl2-gl.c
@@ -132,10 +132,10 @@ void sdl2_gl_redraw(struct sdl2_console *scon)
     }
 }
 
-QEMUGLContext sdl2_gl_create_context(DisplayChangeListener *dcl,
+QEMUGLContext sdl2_gl_create_context(DisplayGLCtx *dgc,
                                      QEMUGLParams *params)
 {
-    struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
+    struct sdl2_console *scon = container_of(dgc, struct sdl2_console, dgc);
     SDL_GLContext ctx;
 
     assert(scon->opengl);
@@ -167,17 +167,17 @@ QEMUGLContext sdl2_gl_create_context(DisplayChangeListener *dcl,
     return (QEMUGLContext)ctx;
 }
 
-void sdl2_gl_destroy_context(DisplayChangeListener *dcl, QEMUGLContext ctx)
+void sdl2_gl_destroy_context(DisplayGLCtx *dgc, QEMUGLContext ctx)
 {
     SDL_GLContext sdlctx = (SDL_GLContext)ctx;
 
     SDL_GL_DeleteContext(sdlctx);
 }
 
-int sdl2_gl_make_context_current(DisplayChangeListener *dcl,
+int sdl2_gl_make_context_current(DisplayGLCtx *dgc,
                                  QEMUGLContext ctx)
 {
-    struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
+    struct sdl2_console *scon = container_of(dgc, struct sdl2_console, dgc);
     SDL_GLContext sdlctx = (SDL_GLContext)ctx;
 
     assert(scon->opengl);
diff --git a/ui/sdl2.c b/ui/sdl2.c
index 0593a333f5..97ba283c49 100644
--- a/ui/sdl2.c
+++ b/ui/sdl2.c
@@ -778,13 +778,17 @@ static const DisplayChangeListenerOps dcl_gl_ops = {
     .dpy_mouse_set           = sdl_mouse_warp,
     .dpy_cursor_define       = sdl_mouse_define,
 
-    .dpy_gl_ctx_create       = sdl2_gl_create_context,
-    .dpy_gl_ctx_destroy      = sdl2_gl_destroy_context,
-    .dpy_gl_ctx_make_current = sdl2_gl_make_context_current,
     .dpy_gl_scanout_disable  = sdl2_gl_scanout_disable,
     .dpy_gl_scanout_texture  = sdl2_gl_scanout_texture,
     .dpy_gl_update           = sdl2_gl_scanout_flush,
 };
+
+static const DisplayGLCtxOps gl_ctx_ops = {
+    .compatible_dcl          = &dcl_gl_ops,
+    .dpy_gl_ctx_create       = sdl2_gl_create_context,
+    .dpy_gl_ctx_destroy      = sdl2_gl_destroy_context,
+    .dpy_gl_ctx_make_current = sdl2_gl_make_context_current,
+};
 #endif
 
 static void sdl2_display_early_init(DisplayOptions *o)
@@ -857,6 +861,7 @@ static void sdl2_display_init(DisplayState *ds, DisplayOptions *o)
 #ifdef CONFIG_OPENGL
         sdl2_console[i].opengl = display_opengl;
         sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops;
+        sdl2_console[i].dgc.ops = display_opengl ? &gl_ctx_ops : NULL;
 #else
         sdl2_console[i].opengl = 0;
         sdl2_console[i].dcl.ops = &dcl_2d_ops;
@@ -864,7 +869,7 @@ static void sdl2_display_init(DisplayState *ds, DisplayOptions *o)
         sdl2_console[i].dcl.con = con;
         sdl2_console[i].kbd = qkbd_state_init(con);
         if (display_opengl) {
-            qemu_console_set_display_gl_ctx(con, &sdl2_console[i].dcl);
+            qemu_console_set_display_gl_ctx(con, &sdl2_console[i].dgc);
         }
         register_displaychangelistener(&sdl2_console[i].dcl);
 
diff --git a/ui/spice-display.c b/ui/spice-display.c
index 24f5cc30f1..0b787d12df 100644
--- a/ui/spice-display.c
+++ b/ui/spice-display.c
@@ -904,12 +904,12 @@ static void spice_gl_switch(DisplayChangeListener *dcl,
     }
 }
 
-static QEMUGLContext qemu_spice_gl_create_context(DisplayChangeListener *dcl,
+static QEMUGLContext qemu_spice_gl_create_context(DisplayGLCtx *dgc,
                                                   QEMUGLParams *params)
 {
     eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
                    qemu_egl_rn_ctx);
-    return qemu_egl_create_context(dcl, params);
+    return qemu_egl_create_context(dgc, params);
 }
 
 static void qemu_spice_gl_scanout_disable(DisplayChangeListener *dcl)
@@ -1101,10 +1101,6 @@ static const DisplayChangeListenerOps display_listener_gl_ops = {
     .dpy_mouse_set           = display_mouse_set,
     .dpy_cursor_define       = display_mouse_define,
 
-    .dpy_gl_ctx_create       = qemu_spice_gl_create_context,
-    .dpy_gl_ctx_destroy      = qemu_egl_destroy_context,
-    .dpy_gl_ctx_make_current = qemu_egl_make_context_current,
-
     .dpy_gl_scanout_disable  = qemu_spice_gl_scanout_disable,
     .dpy_gl_scanout_texture  = qemu_spice_gl_scanout_texture,
     .dpy_gl_scanout_dmabuf   = qemu_spice_gl_scanout_dmabuf,
@@ -1114,6 +1110,13 @@ static const DisplayChangeListenerOps display_listener_gl_ops = {
     .dpy_gl_update           = qemu_spice_gl_update,
 };
 
+static const DisplayGLCtxOps gl_ctx_ops = {
+    .compatible_dcl          = &display_listener_gl_ops,
+    .dpy_gl_ctx_create       = qemu_spice_gl_create_context,
+    .dpy_gl_ctx_destroy      = qemu_egl_destroy_context,
+    .dpy_gl_ctx_make_current = qemu_egl_make_context_current,
+};
+
 #endif /* HAVE_SPICE_GL */
 
 static void qemu_spice_display_init_one(QemuConsole *con)
@@ -1126,6 +1129,7 @@ static void qemu_spice_display_init_one(QemuConsole *con)
 #ifdef HAVE_SPICE_GL
     if (spice_opengl) {
         ssd->dcl.ops = &display_listener_gl_ops;
+        ssd->dgc.ops = &gl_ctx_ops;
         ssd->gl_unblock_bh = qemu_bh_new(qemu_spice_gl_unblock_bh, ssd);
         ssd->gl_unblock_timer = timer_new_ms(QEMU_CLOCK_REALTIME,
                                              qemu_spice_gl_block_timer, ssd);
@@ -1152,7 +1156,7 @@ static void qemu_spice_display_init_one(QemuConsole *con)
     qemu_spice_create_host_memslot(ssd);
 
     if (spice_opengl) {
-        qemu_console_set_display_gl_ctx(con, &ssd->dcl);
+        qemu_console_set_display_gl_ctx(con, &ssd->dgc);
     }
     register_displaychangelistener(&ssd->dcl);
 }
-- 
2.29.0