init

samples/extensions/open_gl_interop/CMakeLists.txt

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+# Copyright (c) 2020-2024, Bradley Austin Davis
+# Copyright (c) 2020-2024, Arm Limited
+#
+# 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.
+#
+
+# The OpenGL interoperability only works on Linux and Windows, and only if glfw is present 
+# (implying NOT DIRECT_TO_DISPLAY)
+# In theory it could work on Android as well, but would need a compeltely different set of code to 
+# create an offscreen OpenGL context.  Further, only a tiny fraction of devices (none of which I have
+# access to) appear to support the required semaphore extension: 
+# https://opengles.gpuinfo.org/listreports.php?extension=GL_EXT_semaphore
+# 
+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 ${PARENT_DIR} NAME)
+
+# Needed for the OpenGL interoperability example
+set(GLAD_DIR "${CMAKE_CURRENT_SOURCE_DIR}/third_party/glad")
+set(GLAD_SOURCES
+    ${GLAD_DIR}/src/glad.c
+    ${GLAD_DIR}/include/glad/glad.h
+    ${GLAD_DIR}/include/KHR/khrplatform.h
+)
+add_library(glad STATIC ${GLAD_SOURCES})
+target_sources(glad PRIVATE ${GLAD_SOURCES})
+target_include_directories(glad PUBLIC ${GLAD_DIR}/include)
+set_target_properties(glad PROPERTIES FOLDER "ThirdParty" POSITION_INDEPENDENT_CODE ON)
+
+# Only Compile on platforms that support glfw
+if (NOT (ANDROID OR DIRECT_TO_DISPLAY OR IOS))
+    target_link_libraries( glad PUBLIC glfw )
+    add_sample_with_tags(
+        ID ${FOLDER_NAME}
+        CATEGORY ${CATEGORY_NAME}
+        AUTHOR "Bradley Austin Davis"
+        NAME "OpenGL Interoperability"
+        DESCRIPTION "Example showing sharing resources between OpenGL and Vulkan"
+        TAGS
+            "opengl"
+        LIBS
+            glad
+        FILES
+            offscreen_context.h
+            offscreen_context.cpp
+        SHADER_FILES_GLSL
+            "texture_loading/glsl/texture.vert"
+            "texture_loading/glsl/texture.frag"
+        SHADER_FILES_HLSL
+            "texture_loading/hlsl/texture.vert.hlsl"
+            "texture_loading/hlsl/texture.frag.hlsl")
+endif()