Add preview for the dynamic blending sample

framework/gui.cpp

@@ -1245,4 +1245,16 @@ void Drawer::text(const char *formatstr, ...)
 	va_end(args);
 }
 
+bool Drawer::color_picker(const char *caption, float *color, ImGuiColorEditFlags flags, uint16_t width)
+{
+    bool res = ImGui::ColorEdit4(caption, color, flags);
+    if (res)
+    {
+        dirty = true;
+    };
+    return res;
+}
+
+
+
 }        // namespace vkb

framework/gui.h

@@ -173,6 +173,8 @@ class Drawer
 	 */
 	void text(const char *formatstr, ...);
 
+    bool color_picker(const char *caption, float *color, ImGuiColorEditFlags flags, uint16_t width = 0);
+
   private:
 	bool dirty{false};
 };

samples/extensions/dynamic_blending/CMakeLists.txt

@@ -0,0 +1,31 @@
+# Copyright (c) 2019, Arm Limited and Contributors
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 the "License";
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+get_filename_component(FOLDER_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
+get_filename_component(PARENT_DIR ${CMAKE_CURRENT_LIST_DIR} PATH)
+get_filename_component(CATEGORY_NAME ${PARENT_DIR} NAME)
+
+add_sample(
+    ID ${FOLDER_NAME}
+    CATEGORY ${CATEGORY_NAME}
+    AUTHOR "Khronos"
+    NAME "dynamic_blending"
+    DESCRIPTION "Sample description"
+    SHADER_FILES_GLSL
+    "dynamic_blending/blending.vert"
+    "dynamic_blending/blending.frag"
+)