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2026-06-03 09:00:11 +08:00
commit 9be48d8b9e
155 changed files with 14827 additions and 0 deletions
@@ -0,0 +1,53 @@
+# FindGlad.cmake - Find or configure the GLAD OpenGL loader
+#
+# This module looks for glad in the third_party/glad directory (pre-generated).
+# It creates a static library target glad::glad.
+#
+# Inputs:
+#   GLAD_DIR  - Path to glad root (contains include/ and src/)
+#
+# Outputs:
+#   Glad_FOUND
+#   Glad::Glad  (imported INTERFACE/STATIC target)
+
+if(NOT GLAD_DIR)
+    set(GLAD_DIR "${CMAKE_SOURCE_DIR}/third_party/glad")
+endif()
+
+find_path(GLAD_INCLUDE_DIR
+    NAMES glad/gl.h
+    PATHS "${GLAD_DIR}/include"
+    NO_DEFAULT_PATH
+)
+
+find_file(GLAD_SOURCE
+    NAMES gl.c
+    PATHS "${GLAD_DIR}/src"
+    NO_DEFAULT_PATH
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Glad
+    REQUIRED_VARS GLAD_INCLUDE_DIR GLAD_SOURCE
+)
+
+if(Glad_FOUND AND NOT TARGET Glad::Glad)
+    add_library(glad_impl STATIC "${GLAD_SOURCE}")
+
+    # The project enables only CXX; tell CMake that glad's C source
+    # should be compiled as C and linked with the C linker.
+    set_source_files_properties("${GLAD_SOURCE}" PROPERTIES LANGUAGE C)
+    set_target_properties(glad_impl PROPERTIES LINKER_LANGUAGE C)
+
+    target_include_directories(glad_impl PUBLIC "${GLAD_INCLUDE_DIR}")
+    # glad needs opengl32 on Windows
+    if(WIN32)
+        target_link_libraries(glad_impl PUBLIC opengl32)
+    else()
+        find_package(OpenGL REQUIRED)
+        target_link_libraries(glad_impl PUBLIC OpenGL::GL)
+    endif()
+
+    add_library(Glad::Glad ALIAS glad_impl)
+    message(STATUS "Glad found: ${GLAD_INCLUDE_DIR}")
+endif()