egl/android: support for EGL_KHR_partial_update

This patch adds support for the EGL_KHR_partial_update extension for
android platform. It passes 36/37 tests in dEQP for EGL_KHR_partial_update.
1 test not supported.

v2: add fallback for eglSetDamageRegionKHR (Tapani)

v3: The native_window_set_surface_damage call is available only from
    Android version 6.0. Reintroduce the ANDROID_VERSION guard and
    advertise extension only if version is >= 6.0. (Emil Velikov)

v4: use newly introduced ANDROID_API_LEVEL guard rather than
    ANDROID_VERSION guard to advertise the extension.The extension
    is advertised only if ANDROID_API_LEVEL >= 23 (Android 6.0 or
    greater). Add fallback function for platforms other than Android.
    Fix possible math overflow. (Emil Velikov)
    Return immediately when n_rects is 0. Place function's entrypoint
    in alphabetical order. (Eric Engestrom)

v5: Replace unnecessary calloc with malloc (Eric)
    Check for BAD_ALLOC error (Emil)
    Check for error in native_window_set_damage_region. (Emil, Tapani,
    Eric).

Signed-off-by: Harish Krupo <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
Reviewed-by: Eric Engestrom <[email protected]>
Reviewed-by: Tapani Pälli <[email protected]>

9 files changed, 74 insertions, 0 deletions

diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index 7175e827c9f..020a0bc6394 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -1512,6 +1512,14 @@ dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
 }
 
 static EGLBoolean
+dri2_set_damage_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
+                       EGLint *rects, EGLint n_rects)
+{
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
+   return dri2_dpy->vtbl->set_damage_region(drv, dpy, surf, rects, n_rects);
+}
+
+static EGLBoolean
 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
                      EGLint x, EGLint y, EGLint width, EGLint height)
 {
@@ -3140,6 +3148,7 @@ _eglBuiltInDriverDRI2(const char *args)
    dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
    dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
    dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
+   dri2_drv->base.API.SetDamageRegion = dri2_set_damage_region;
    dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
    dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
    dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
diff --git a/src/egl/drivers/dri2/egl_dri2.h b/src/egl/drivers/dri2/egl_dri2.h
index a71b4489cde..f8c26a9d45e 100644
--- a/src/egl/drivers/dri2/egl_dri2.h
+++ b/src/egl/drivers/dri2/egl_dri2.h
@@ -118,6 +118,10 @@ struct dri2_egl_display_vtbl {
                                           _EGLSurface *surface,
                                           const EGLint *rects, EGLint n_rects);
 
+   EGLBoolean (*set_damage_region)(_EGLDriver *drv, _EGLDisplay *dpy,
+                                   _EGLSurface *surface,
+                                   const EGLint *rects, EGLint n_rects);
+
    EGLBoolean (*swap_buffers_region)(_EGLDriver *drv, _EGLDisplay *dpy,
                                      _EGLSurface *surf, EGLint numRects,
                                      const EGLint *rects);
diff --git a/src/egl/drivers/dri2/egl_dri2_fallbacks.h b/src/egl/drivers/dri2/egl_dri2_fallbacks.h
index 67a9c5034a2..d8363c9bdd7 100644
--- a/src/egl/drivers/dri2/egl_dri2_fallbacks.h
+++ b/src/egl/drivers/dri2/egl_dri2_fallbacks.h
@@ -95,6 +95,14 @@ dri2_fallback_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy,
    return EGL_FALSE;
 }
 
+static inline EGLBoolean
+dri2_fallback_set_damage_region(_EGLDriver *drv, _EGLDisplay *dpy,
+                                _EGLSurface *surf,
+                                const EGLint *rects, EGLint n_rects)
+{
+   return EGL_FALSE;
+}
+
 static inline EGLint
 dri2_fallback_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy,
                                _EGLSurface *surf)
diff --git a/src/egl/drivers/dri2/platform_android.c b/src/egl/drivers/dri2/platform_android.c
index 4c979351192..7a73419d148 100644
--- a/src/egl/drivers/dri2/platform_android.c
+++ b/src/egl/drivers/dri2/platform_android.c
@@ -656,6 +656,45 @@ droid_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
    return EGL_TRUE;
 }
 
+#if ANDROID_API_LEVEL >= 23
+static EGLBoolean
+droid_set_damage_region(_EGLDriver *drv,
+                        _EGLDisplay *disp,
+                        _EGLSurface *draw, const EGLint* rects, EGLint n_rects)
+{
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+   struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
+   android_native_rect_t* droid_rects = NULL;
+   int ret;
+
+   if (n_rects == 0)
+      return EGL_TRUE;
+
+   droid_rects = malloc(n_rects * sizeof(android_native_rect_t));
+   if (droid_rects == NULL) {
+     _eglError(EGL_BAD_ALLOC, "eglSetDamageRegionKHR");
+     return EGL_FALSE;
+   }
+
+   for (EGLint num_drects = 0; num_drects < n_rects; num_drects++) {
+      EGLint i = num_drects * 4;
+      droid_rects[num_drects].left = rects[i];
+      droid_rects[num_drects].bottom = rects[i + 1];
+      droid_rects[num_drects].right = rects[i] + rects[i + 2];
+      droid_rects[num_drects].top = rects[i + 1] + rects[i + 3];
+   }
+
+   /*
+    * XXX/TODO: Need to check for other return values
+    */
+
+   ret = native_window_set_surface_damage(dri2_surf->window, droid_rects, n_rects);
+   free(droid_rects);
+
+   return ret == 0 ? EGL_TRUE : EGL_FALSE;
+}
+#endif
+
 static _EGLImage *
 droid_create_image_from_prime_fd_yuv(_EGLDisplay *disp, _EGLContext *ctx,
                                      struct ANativeWindowBuffer *buf, int fd)
@@ -1066,6 +1105,11 @@ static const struct dri2_egl_display_vtbl droid_display_vtbl = {
    .swap_buffers = droid_swap_buffers,
    .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage,
    .swap_buffers_region = dri2_fallback_swap_buffers_region,
+#if ANDROID_API_LEVEL >= 23
+   .set_damage_region = droid_set_damage_region,
+#else
+   .set_damage_region = dri2_fallback_set_damage_region,
+#endif
    .post_sub_buffer = dri2_fallback_post_sub_buffer,
    .copy_buffers = dri2_fallback_copy_buffers,
    .query_buffer_age = droid_query_buffer_age,
@@ -1176,6 +1220,9 @@ dri2_initialize_android(_EGLDriver *drv, _EGLDisplay *dpy)
    dpy->Extensions.ANDROID_image_native_buffer = EGL_TRUE;
    dpy->Extensions.ANDROID_recordable = EGL_TRUE;
    dpy->Extensions.EXT_buffer_age = EGL_TRUE;
+#if ANDROID_API_LEVEL >= 23
+   dpy->Extensions.KHR_partial_update = EGL_TRUE;
+#endif
 
    /* Fill vtbl last to prevent accidentally calling virtual function during
     * initialization.
diff --git a/src/egl/drivers/dri2/platform_drm.c b/src/egl/drivers/dri2/platform_drm.c
index 36c89fc832b..8b0562c75d2 100644
--- a/src/egl/drivers/dri2/platform_drm.c
+++ b/src/egl/drivers/dri2/platform_drm.c
@@ -658,6 +658,7 @@ static const struct dri2_egl_display_vtbl dri2_drm_display_vtbl = {
    .swap_buffers = dri2_drm_swap_buffers,
    .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage,
    .swap_buffers_region = dri2_fallback_swap_buffers_region,
+   .set_damage_region = dri2_fallback_set_damage_region,
    .post_sub_buffer = dri2_fallback_post_sub_buffer,
    .copy_buffers = dri2_fallback_copy_buffers,
    .query_buffer_age = dri2_drm_query_buffer_age,
diff --git a/src/egl/drivers/dri2/platform_surfaceless.c b/src/egl/drivers/dri2/platform_surfaceless.c
index 6563e466c09..0eb3fb7505c 100644
--- a/src/egl/drivers/dri2/platform_surfaceless.c
+++ b/src/egl/drivers/dri2/platform_surfaceless.c
@@ -237,6 +237,7 @@ static const struct dri2_egl_display_vtbl dri2_surfaceless_display_vtbl = {
    .swap_buffers = surfaceless_swap_buffers,
    .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage,
    .swap_buffers_region = dri2_fallback_swap_buffers_region,
+   .set_damage_region = dri2_fallback_set_damage_region,
    .post_sub_buffer = dri2_fallback_post_sub_buffer,
    .copy_buffers = dri2_fallback_copy_buffers,
    .query_buffer_age = dri2_fallback_query_buffer_age,
diff --git a/src/egl/drivers/dri2/platform_wayland.c b/src/egl/drivers/dri2/platform_wayland.c
index 15cc597111e..f746f0bfd1c 100644
--- a/src/egl/drivers/dri2/platform_wayland.c
+++ b/src/egl/drivers/dri2/platform_wayland.c
@@ -1080,6 +1080,7 @@ static const struct dri2_egl_display_vtbl dri2_wl_display_vtbl = {
    .swap_buffers = dri2_wl_swap_buffers,
    .swap_buffers_with_damage = dri2_wl_swap_buffers_with_damage,
    .swap_buffers_region = dri2_fallback_swap_buffers_region,
+   .set_damage_region = dri2_fallback_set_damage_region,
    .post_sub_buffer = dri2_fallback_post_sub_buffer,
    .copy_buffers = dri2_fallback_copy_buffers,
    .query_buffer_age = dri2_wl_query_buffer_age,
diff --git a/src/egl/drivers/dri2/platform_x11.c b/src/egl/drivers/dri2/platform_x11.c
index 8d8c7cb4905..74d3a164b6a 100644
--- a/src/egl/drivers/dri2/platform_x11.c
+++ b/src/egl/drivers/dri2/platform_x11.c
@@ -1140,6 +1140,7 @@ static const struct dri2_egl_display_vtbl dri2_x11_swrast_display_vtbl = {
    .create_image = dri2_fallback_create_image_khr,
    .swap_interval = dri2_fallback_swap_interval,
    .swap_buffers = dri2_x11_swap_buffers,
+   .set_damage_region = dri2_fallback_set_damage_region,
    .swap_buffers_region = dri2_fallback_swap_buffers_region,
    .post_sub_buffer = dri2_fallback_post_sub_buffer,
    .copy_buffers = dri2_x11_copy_buffers,
@@ -1161,6 +1162,7 @@ static const struct dri2_egl_display_vtbl dri2_x11_display_vtbl = {
    .swap_buffers = dri2_x11_swap_buffers,
    .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage,
    .swap_buffers_region = dri2_x11_swap_buffers_region,
+   .set_damage_region = dri2_fallback_set_damage_region,
    .post_sub_buffer = dri2_x11_post_sub_buffer,
    .copy_buffers = dri2_x11_copy_buffers,
    .query_buffer_age = dri2_fallback_query_buffer_age,
diff --git a/src/egl/drivers/dri2/platform_x11_dri3.c b/src/egl/drivers/dri2/platform_x11_dri3.c
index 041da3208de..3148f4904e5 100644
--- a/src/egl/drivers/dri2/platform_x11_dri3.c
+++ b/src/egl/drivers/dri2/platform_x11_dri3.c
@@ -458,6 +458,7 @@ struct dri2_egl_display_vtbl dri3_x11_display_vtbl = {
    .swap_buffers = dri3_swap_buffers,
    .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage,
    .swap_buffers_region = dri2_fallback_swap_buffers_region,
+   .set_damage_region = dri2_fallback_set_damage_region,
    .post_sub_buffer = dri2_fallback_post_sub_buffer,
    .copy_buffers = dri3_copy_buffers,
    .query_buffer_age = dri3_query_buffer_age,