egl: add support for EGL_ANDROID_blob_cache

v2: cleanup, move callbacks to _egl_display struct (Emil Velikov)
    adapt to earlier ctx->screen changes

v3: remove useless checking, add _eglSetFuncName (Emil Velikov)

Signed-off-by: Tapani Pälli <[email protected]>
Reviewed-by: Jordan Justen <[email protected]> (v2)
Reviewed-by: Emil Velikov <[email protected]>

4 files changed, 53 insertions, 0 deletions

diff --git a/src/egl/main/eglapi.c b/src/egl/main/eglapi.c
index 5110688f2d1..c1103491191 100644
--- a/src/egl/main/eglapi.c
+++ b/src/egl/main/eglapi.c
@@ -476,6 +476,7 @@ _eglCreateExtensionsString(_EGLDisplay *dpy)
    char *exts = dpy->ExtensionsString;
 
    /* Please keep these sorted alphabetically. */
+   _EGL_CHECK_EXTENSION(ANDROID_blob_cache);
    _EGL_CHECK_EXTENSION(ANDROID_framebuffer_target);
    _EGL_CHECK_EXTENSION(ANDROID_image_native_buffer);
    _EGL_CHECK_EXTENSION(ANDROID_native_fence_sync);
@@ -2522,6 +2523,49 @@ eglQueryDmaBufModifiersEXT(EGLDisplay dpy, EGLint format, EGLint max_modifiers,
    RETURN_EGL_EVAL(disp, ret);
 }
 
+static void EGLAPIENTRY
+eglSetBlobCacheFuncsANDROID(EGLDisplay *dpy, EGLSetBlobFuncANDROID set,
+                            EGLGetBlobFuncANDROID get)
+{
+   /* This function does not return anything so we cannot
+    * utilize the helper macros _EGL_FUNC_START or _EGL_CHECK_DISPLAY.
+    */
+   _EGLDisplay *disp = _eglLockDisplay(dpy);
+   if (!_eglSetFuncName(__func__, disp, EGL_OBJECT_DISPLAY_KHR, NULL)) {
+      if (disp)
+         _eglUnlockDisplay(disp);
+      return;
+   }
+
+   _EGLDriver *drv = _eglCheckDisplay(disp, __func__);
+   if (!drv) {
+      if (disp)
+         _eglUnlockDisplay(disp);
+      return;
+   }
+
+   if (!set || !get) {
+      _eglError(EGL_BAD_PARAMETER,
+                "eglSetBlobCacheFuncsANDROID: NULL handler given");
+      _eglUnlockDisplay(disp);
+      return;
+   }
+
+   if (disp->BlobCacheSet) {
+      _eglError(EGL_BAD_PARAMETER,
+                "eglSetBlobCacheFuncsANDROID: functions already set");
+      _eglUnlockDisplay(disp);
+      return;
+   }
+
+   disp->BlobCacheSet = set;
+   disp->BlobCacheGet = get;
+
+   drv->API.SetBlobCacheFuncsANDROID(drv, disp, set, get);
+
+   _eglUnlockDisplay(disp);
+}
+
 __eglMustCastToProperFunctionPointerType EGLAPIENTRY
 eglGetProcAddress(const char *procname)
 {
diff --git a/src/egl/main/eglapi.h b/src/egl/main/eglapi.h
index 852a34584ea..3f70377cd74 100644
--- a/src/egl/main/eglapi.h
+++ b/src/egl/main/eglapi.h
@@ -209,6 +209,10 @@ struct _egl_api
                                           EGLuint64KHR *modifiers,
                                           EGLBoolean *external_only,
                                           EGLint *num_modifiers);
+
+   void (*SetBlobCacheFuncsANDROID) (_EGLDriver *drv, _EGLDisplay *dpy,
+                                     EGLSetBlobFuncANDROID set,
+                                     EGLGetBlobFuncANDROID get);
 };
 
 #ifdef __cplusplus
diff --git a/src/egl/main/egldisplay.h b/src/egl/main/egldisplay.h
index 7eac96ed052..d7e51991a45 100644
--- a/src/egl/main/egldisplay.h
+++ b/src/egl/main/egldisplay.h
@@ -92,6 +92,7 @@ struct _egl_resource
 struct _egl_extensions
 {
    /* Please keep these sorted alphabetically. */
+   EGLBoolean ANDROID_blob_cache;
    EGLBoolean ANDROID_framebuffer_target;
    EGLBoolean ANDROID_image_native_buffer;
    EGLBoolean ANDROID_native_fence_sync;
@@ -181,6 +182,9 @@ struct _egl_display
    _EGLResource *ResourceLists[_EGL_NUM_RESOURCES];
 
    EGLLabelKHR Label;
+
+   EGLSetBlobFuncANDROID BlobCacheSet;
+   EGLGetBlobFuncANDROID BlobCacheGet;
 };
 
 
diff --git a/src/egl/main/eglentrypoint.h b/src/egl/main/eglentrypoint.h
index f7fe77410d5..06749f6353a 100644
--- a/src/egl/main/eglentrypoint.h
+++ b/src/egl/main/eglentrypoint.h
@@ -63,6 +63,7 @@ EGL_ENTRYPOINT(eglQuerySurface)
 EGL_ENTRYPOINT(eglQueryWaylandBufferWL)
 EGL_ENTRYPOINT(eglReleaseTexImage)
 EGL_ENTRYPOINT(eglReleaseThread)
+EGL_ENTRYPOINT(eglSetBlobCacheFuncsANDROID)
 EGL_ENTRYPOINT(eglSetDamageRegionKHR)
 EGL_ENTRYPOINT(eglSignalSyncKHR)
 EGL_ENTRYPOINT(eglSurfaceAttrib)