commit 6719e058d6b8a38cc66accf1609fcabb66571e86
author Varad Gautam <varad.gautam@collabora.com> Tue May 30 17:23:38 2017 +0530
committer Eric Engestrom <eric.engestrom@imgtec.com> Tue May 30 13:56:20 2017 +0100
tree 35a31b83f2a06f0687035f1699f0dfd1f42c956a
parent 6f10e7c37a34570f61fa2db8fc1860553207b7e9

egl: implement eglQueryDmaBufFormatsEXT

allow egl clients to query the dmabuf formats supported on this platform.

v2: return EGLBoolean.
v3: Check DRIimageExtension version before querying (Daniel Stone).
v4: move to DRIimageExtension version 15, error checking (Jason Ekstrand).

Signed-off-by: Louis-Francis Ratté-Boulianne <lfrb@collabora.com>
Signed-off-by: Varad Gautam <varad.gautam@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

src/egl/drivers/dri2/egl_dri2.c

diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index 177b547..c271552 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -2157,6 +2157,27 @@
    return plane_n;
 }
 
+static EGLBoolean
+dri2_query_dma_buf_formats(_EGLDriver *drv, _EGLDisplay *disp,
+                            EGLint max, EGLint *formats, EGLint *count)
+{
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+   if (max < 0 || (max > 0 && formats == NULL)) {
+      _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
+      return EGL_FALSE;
+   }
+
+   if (dri2_dpy->image->base.version < 15 ||
+       dri2_dpy->image->queryDmaBufFormats == NULL)
+      return EGL_FALSE;
+
+   if (!dri2_dpy->image->queryDmaBufFormats(dri2_dpy->dri_screen, max,
+                                            formats, count))
+      return EGL_FALSE;
+
+   return EGL_TRUE;
+}
+
 /**
  * The spec says:
  *
@@ -3094,6 +3115,7 @@
    dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
    dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
    dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
+   dri2_drv->base.API.QueryDmaBufFormatsEXT = dri2_query_dma_buf_formats;
 #endif
 #ifdef HAVE_WAYLAND_PLATFORM
    dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;