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[Qemu-devel] [PATCH 3/6] egl-helpers: fix display init for x11


From: Gerd Hoffmann
Subject: [Qemu-devel] [PATCH 3/6] egl-helpers: fix display init for x11
Date: Fri, 5 May 2017 12:40:58 +0200

When running on gtk we need X11 platform not mesa platform.
Create separate functions for mesa and x11 so we can keep
the egl #ifdef mess local to egl-helpers.c

Fixes: 0ea1523fb6703aa0dcd65e66b59e96fec028e60a
Signed-off-by: Gerd Hoffmann <address@hidden>
---
 include/ui/egl-helpers.h |  3 ++-
 ui/egl-helpers.c         | 34 ++++++++++++++++++++++++++--------
 ui/gtk-egl.c             |  2 +-
 3 files changed, 29 insertions(+), 10 deletions(-)

diff --git a/include/ui/egl-helpers.h b/include/ui/egl-helpers.h
index fec7da14a5..c785d60e91 100644
--- a/include/ui/egl-helpers.h
+++ b/include/ui/egl-helpers.h
@@ -21,7 +21,8 @@ int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, 
EGLint *fourcc);
 
 EGLSurface qemu_egl_init_surface_x11(EGLContext ectx, Window win);
 
-int qemu_egl_init_dpy(EGLNativeDisplayType dpy);
+int qemu_egl_init_dpy_x11(EGLNativeDisplayType dpy);
+int qemu_egl_init_dpy_mesa(EGLNativeDisplayType dpy);
 EGLContext qemu_egl_init_ctx(void);
 
 #endif /* EGL_HELPERS_H */
diff --git a/ui/egl-helpers.c b/ui/egl-helpers.c
index a3d7c3d7f5..ec2e325e21 100644
--- a/ui/egl-helpers.c
+++ b/ui/egl-helpers.c
@@ -93,7 +93,7 @@ int egl_rendernode_init(const char *rendernode)
         goto err;
     }
 
-    qemu_egl_init_dpy((EGLNativeDisplayType)qemu_egl_rn_gbm_dev);
+    qemu_egl_init_dpy_mesa((EGLNativeDisplayType)qemu_egl_rn_gbm_dev);
 
     if (!epoxy_has_egl_extension(qemu_egl_display,
                                  "EGL_KHR_surfaceless_context")) {
@@ -206,20 +206,19 @@ EGLSurface qemu_egl_init_surface_x11(EGLContext ectx, 
Window win)
  * platform extensions (EGL_KHR_platform_gbm and friends) yet it doesn't seem
  * like mesa will be able to advertise these (even though it can do EGL 1.5).
  */
-static EGLDisplay qemu_egl_get_display(void *native)
+static EGLDisplay qemu_egl_get_display(EGLNativeDisplayType native,
+                                       EGLenum platform)
 {
     EGLDisplay dpy = EGL_NO_DISPLAY;
 
-#ifdef EGL_MESA_platform_gbm
     /* In practise any EGL 1.5 implementation would support the EXT extension 
*/
     if (epoxy_has_egl_extension(NULL, "EGL_EXT_platform_base")) {
         PFNEGLGETPLATFORMDISPLAYEXTPROC getPlatformDisplayEXT =
             (void *) eglGetProcAddress("eglGetPlatformDisplayEXT");
-        if (getPlatformDisplayEXT) {
-            dpy = getPlatformDisplayEXT(EGL_PLATFORM_GBM_MESA, native, NULL);
+        if (getPlatformDisplayEXT && platform != 0) {
+            dpy = getPlatformDisplayEXT(platform, native, NULL);
         }
     }
-#endif
 
     if (dpy == EGL_NO_DISPLAY) {
         /* fallback */
@@ -228,7 +227,8 @@ static EGLDisplay qemu_egl_get_display(void *native)
     return dpy;
 }
 
-int qemu_egl_init_dpy(EGLNativeDisplayType dpy)
+static int qemu_egl_init_dpy(EGLNativeDisplayType dpy,
+                             EGLenum platform)
 {
     static const EGLint conf_att_gl[] = {
         EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
@@ -243,7 +243,7 @@ int qemu_egl_init_dpy(EGLNativeDisplayType dpy)
     EGLBoolean b;
     EGLint n;
 
-    qemu_egl_display = qemu_egl_get_display(dpy);
+    qemu_egl_display = qemu_egl_get_display(dpy, platform);
     if (qemu_egl_display == EGL_NO_DISPLAY) {
         error_report("egl: eglGetDisplay failed");
         return -1;
@@ -270,6 +270,24 @@ int qemu_egl_init_dpy(EGLNativeDisplayType dpy)
     return 0;
 }
 
+int qemu_egl_init_dpy_x11(EGLNativeDisplayType dpy)
+{
+#ifdef EGL_KHR_platform_x11
+    return qemu_egl_init_dpy(dpy, EGL_PLATFORM_X11_KHR);
+#else
+    return qemu_egl_init_dpy(dpy, 0);
+#endif
+}
+
+int qemu_egl_init_dpy_mesa(EGLNativeDisplayType dpy)
+{
+#ifdef EGL_MESA_platform_gbm
+    return qemu_egl_init_dpy(dpy, EGL_PLATFORM_GBM_MESA);
+#else
+    return qemu_egl_init_dpy(dpy, 0);
+#endif
+}
+
 EGLContext qemu_egl_init_ctx(void)
 {
     static const EGLint ctx_att_gl[] = {
diff --git a/ui/gtk-egl.c b/ui/gtk-egl.c
index 89492c0e02..cf48cca259 100644
--- a/ui/gtk-egl.c
+++ b/ui/gtk-egl.c
@@ -246,7 +246,7 @@ void gtk_egl_init(void)
     GdkDisplay *gdk_display = gdk_display_get_default();
     Display *x11_display = gdk_x11_display_get_xdisplay(gdk_display);
 
-    if (qemu_egl_init_dpy(x11_display) < 0) {
+    if (qemu_egl_init_dpy_x11(x11_display) < 0) {
         return;
     }
 
-- 
2.9.3




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