[Mesa-dev] [PATCH v2] egl/wayland: Don't use DRM format codes for SHM

[Emil Velikov]

From: Daniel Stone <daniels at collabora.com>

The wl_drm interface (akin to X11's DRI2) uses the standard set of DRM
FourCC format codes. wl_shm copies this, except for ARGB8888/XRGB8888,
which use their own definitions.

Make sure we only use wl_shm format codes when we're working with
wl_shm. Otherwise, using swrast with 32bpp formats would fail with an
error.

Signed-off-by: Daniel Stone <daniels at collabora.com>
Cc: Daniel Stone <daniels at collabora.com>
Cc: mesa-stable at lists.freedesktop.org
Fixes: cb5e799448 ("egl/wayland: unify dri2_wl_create_surface implementations")
[Emil Velikov: move to dri2_wl_create_window_surface]
Signed-off-by: Emil Velikov <emil.velikov at collabora.com>
---
 src/egl/drivers/dri2/platform_wayland.c | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/src/egl/drivers/dri2/platform_wayland.c b/src/egl/drivers/dri2/platform_wayland.c
index 37360c7f7e..a3380f298d 100644
--- a/src/egl/drivers/dri2/platform_wayland.c
+++ b/src/egl/drivers/dri2/platform_wayland.c
@@ -148,12 +148,21 @@ dri2_wl_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
    if (!_eglInitSurface(&dri2_surf->base, disp, EGL_WINDOW_BIT, conf, attrib_list))
       goto cleanup_surf;
 
-   if (conf->RedSize == 5)
-      dri2_surf->format = WL_DRM_FORMAT_RGB565;
-   else if (conf->AlphaSize == 0)
-      dri2_surf->format = WL_DRM_FORMAT_XRGB8888;
-   else
-      dri2_surf->format = WL_DRM_FORMAT_ARGB8888;
+   if (dri2_dpy->dri2) {
+      if (conf->RedSize == 5)
+         dri2_surf->format = WL_DRM_FORMAT_RGB565;
+      else if (conf->AlphaSize == 0)
+         dri2_surf->format = WL_DRM_FORMAT_XRGB8888;
+      else
+         dri2_surf->format = WL_DRM_FORMAT_ARGB8888;
+   } else {
+      if (conf->RedSize == 5)
+         dri2_surf->format = WL_SHM_FORMAT_RGB565;
+      else if (conf->AlphaSize == 0)
+         dri2_surf->format = WL_SHM_FORMAT_XRGB8888;
+      else
+         dri2_surf->format = WL_SHM_FORMAT_ARGB8888;
+   }
 
    if (!window) {
       _eglError(EGL_BAD_NATIVE_WINDOW, "dri2_create_surface");
-- 
2.11.1