evas: Evas_3D - add mesh blending mode.

Reviewers: Hermet, raster, cedric

Subscribers: Oleksander, cedric

@feature

Differential Revision: https://phab.enlightenment.org/D1548

Signed-off-by: Cedric BAIL <cedric@osg.samsung.com>

2 files changed, 76 insertions, 0 deletions

diff --git a/src/lib/evas/canvas/evas_3d_mesh.c b/src/lib/evas/canvas/evas_3d_mesh.c
index f72d959dd2..81b9117628 100644
--- a/src/lib/evas/canvas/evas_3d_mesh.c
+++ b/src/lib/evas/canvas/evas_3d_mesh.c
@@ -117,6 +117,9 @@ _mesh_init(Evas_3D_Mesh_Data *pd)
    pd->assembly = EVAS_3D_VERTEX_ASSEMBLY_TRIANGLES;
 
    pd->nodes = NULL;
+   pd->blend_sfactor = EVAS_3D_BLEND_ONE;
+   pd->blend_dfactor = EVAS_3D_BLEND_ZERO;
+   pd->blending = EINA_FALSE;
 }
 
 static inline void
@@ -770,6 +773,35 @@ _evas_3d_mesh_fog_enable_get(Eo *obj EINA_UNUSED, Evas_3D_Mesh_Data *pd)
 }
 
 EOLIAN static void
+_evas_3d_mesh_blending_enable_set(Eo *obj, Evas_3D_Mesh_Data *pd, Eina_Bool blending)
+{
+   pd->blending = blending;
+   eo_do(obj, evas_3d_object_change(EVAS_3D_STATE_MESH_BLENDING, NULL));
+}
+
+EOLIAN static Eina_Bool
+_evas_3d_mesh_blending_enable_get(Eo *obj EINA_UNUSED, Evas_3D_Mesh_Data *pd)
+{
+   return pd->blending;
+}
+
+EOLIAN static void
+_evas_3d_mesh_blending_func_set(Eo *obj, Evas_3D_Mesh_Data *pd, Evas_3D_Blend_Func sfactor, Evas_3D_Blend_Func dfactor)
+{
+   pd->blend_sfactor = sfactor;
+   pd->blend_dfactor = dfactor;
+   eo_do(obj, evas_3d_object_change(EVAS_3D_STATE_MESH_BLENDING, NULL));
+}
+
+EOLIAN static void
+_evas_3d_mesh_blending_func_get(Eo *obj EINA_UNUSED, Evas_3D_Mesh_Data *pd,
+                                   Evas_3D_Blend_Func *sfactor, Evas_3D_Blend_Func *dfactor)
+{
+   if (sfactor) *sfactor = pd->blend_sfactor;
+   if (dfactor) *dfactor = pd->blend_dfactor;
+}
+
+EOLIAN static void
 _evas_3d_mesh_file_set(Eo *obj, Evas_3D_Mesh_Data *pd, Evas_3D_Mesh_File_Type type, const char *file, const char *key EINA_UNUSED)
 {
    _mesh_fini(pd);
diff --git a/src/lib/evas/canvas/evas_3d_mesh.eo b/src/lib/evas/canvas/evas_3d_mesh.eo
index 66d4f69fa8..0fdf1a2517 100644
--- a/src/lib/evas/canvas/evas_3d_mesh.eo
+++ b/src/lib/evas/canvas/evas_3d_mesh.eo
@@ -330,6 +330,27 @@ class Evas_3D_Mesh (Evas_3D_Object, Evas.Common_Interface)
             @out Evas_Real a; /*@ Pointer to receive transparency of fog.*/
          }
       }
+      blending_func_set {
+         /*
+          Set the blending function for given mesh
+          @ingroup Evas_3D_Mesh
+         */
+         params {
+            @in Evas_3D_Blend_Func sfactor; /*@ Specifies how the red, green, blue, and alpha source blending factors are computed.*/
+            @in Evas_3D_Blend_Func dfactor; /*@ Specifies how the red, green, blue, and alpha destination blending factors are computed.*/
+         }
+      }
+      blending_func_get {
+         /*
+          Get blending blending function for given mesh
+          @see eavs_3d_mesh_blending_func_set()
+          @ingroup Evas_3D_Mesh
+         */
+         params {
+            @out Evas_3D_Blend_Func sfactor; /*@ Pointer to receive source blendin factors key.*/
+            @out Evas_3D_Blend_Func dfactor; /*@ Pointer to receive destination blendin factors key.*/
+         }
+      }
       fog_enable_set {
          /*
            Enable or disable fog effect for given mesh.
@@ -373,6 +394,29 @@ class Evas_3D_Mesh (Evas_3D_Object, Evas.Common_Interface)
             Evas_3D_Shade_Mode mode; /*@ The shade mode.*/
          }
       }
+      blending_enable {
+        set {
+            /**
+             * Enable or disable blending for given mesh.
+             *
+             * Default blending disabled.
+             *
+             * @ingroup Evas_3D_Mesh
+             */
+         }
+         get {
+            /**
+             * Get blending enable status for given mesh.
+             *
+             * @see eavs_3d_mesh_blending_enable_set()
+             *
+             * @ingroup Evas_3D_Mesh
+             */
+         }
+         values {
+            Eina_Bool blending; /*@ The blending state.*/
+         }
+      }
 
       frame_material {
          set {