From c0eeccb889c8ae969bbb6e44e87bc309ea5f146f Mon Sep 17 00:00:00 2001
From: vimene <vincent.menegaux@gmail.com>
Date: Fri, 26 Dec 2025 15:46:19 +0100
Subject: added STBI library

---
 configure.ac    | 23 ++++++++++++++++++++---
 src/Makefile.am | 13 +++----------
 src/engine.cpp  |  2 ++
 src/stb_image.c |  2 ++
 4 files changed, 27 insertions(+), 13 deletions(-)
 create mode 100644 src/stb_image.c

diff --git a/configure.ac b/configure.ac
index 8a2c3d4..aae39c3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -28,6 +28,23 @@ AS_IF([test "x$VULKAN_SDK" != x], [AC_MSG_RESULT([yes])], [
 AC_LANG([C])
 CFLAGS_save="$CFLAGS"
 LIBS_save="$LIBS"
+
+CFLAGS="$STB_CFLAGS"
+LIBS="$LIBS $STB_LIBS"
+AC_MSG_CHECKING([for STBI version 1])
+AC_RUN_IFELSE([AC_LANG_PROGRAM([
+#define STB_IMAGE_IMPLEMENTATION
+#include <stb_image.h>
+dnl
+dnl we are not really checking for stbi version, this is to check if the header is truly included
+dnl without problems
+],[if (STBI_VERSION != 1) exit(1)])], [AC_MSG_RESULT([yes])], [
+  AC_MSG_RESULT([no])
+  AC_MSG_ERROR([STBI not found, or wrong version (1 required)])
+])
+AC_SUBST([STB_CFLAGS])
+AC_SUBST([STB_LIBS])
+
 CFLAGS="$VULKAN_CFLAGS"
 LIBS="$LIBS $VULKAN_LIBS"
 AC_MSG_CHECKING([for Vulkan version 1.4.313])
@@ -38,12 +55,12 @@ AC_RUN_IFELSE([AC_LANG_PROGRAM([
   AC_MSG_RESULT([no])
   AC_MSG_ERROR([Vulkan not found, or wrong version (1.4.313 required)])
 ])
-CFLAGS="$CFLAGS_save"
-LIBS="$LIBS_save"
-
 AC_SUBST([VULKAN_CFLAGS])
 AC_SUBST([VULKAN_LIBS])
 
+CFLAGS="$CFLAGS_save"
+LIBS="$LIBS_save"
+
 PKG_HAVE_DEFINE_WITH_MODULES([NCURSES], [ncurses >= 6.4.20230625])
 
 AC_OUTPUT
diff --git a/src/Makefile.am b/src/Makefile.am
index ad18692..88e4ee3 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -9,6 +9,7 @@ engine_SOURCES = \
 	renderer.hpp renderer.cpp \
 	obj_parser.hpp obj_parser.cpp \
 	vulkan_utils.hpp \
+	stb_image.c \
 	fb/chfb.hpp fb/chfb.cpp fb/pixfb.hpp fb/pixfb.cpp \
 	math/vector.hpp \
 	math/mat4.hpp \
@@ -25,17 +26,9 @@ engine_SOURCES = \
 	o3d/scene.hpp \
 	ctrl/keyboard.hpp \
 	ctrl/mouse.hpp
-engine_CPPFLAGS = -std=gnu++23 -Wall -Wextra
+engine_CPPFLAGS = -std=gnu++23 -Wall -Wextra -DDATADIR='"$(datadir)"' -DSHADERSDIR='"$(shadersdir)"' $(GLFW3_CFLAGS) $(STB_CFLAGS) $(VULKAN_CFLAGS)
 engine_LDFLAGS  = -std=gnu++23 -Wall -Wextra
-
-engine_CPPFLAGS += -DDATADIR='"$(datadir)"' -DSHADERSDIR='"$(shadersdir)"'
-
-# Not sure why they are needed
-engine_LDADD =# -ldl -lpthread -lX11 -lXxf86vm -lXrandr -lXi
-engine_CPPFLAGS += $(GLFW3_CFLAGS)
-engine_LDADD    += $(GLFW3_LIBS)
-engine_CPPFLAGS += $(VULKAN_CFLAGS)
-engine_LDADD    += $(VULKAN_LIBS)
+engine_LDADD    = $(GLFW3_LIBS) $(STB_LIBS) $(VULKAN_LIBS)
 
 if HAVE_NCURSES
 engine_CPPFLAGS += $(NCURSES_CFLAGS)
diff --git a/src/engine.cpp b/src/engine.cpp
index 792b99f..4ab8c60 100644
--- a/src/engine.cpp
+++ b/src/engine.cpp
@@ -26,6 +26,8 @@
 #include <GLFW/glfw3.h>
 #include <vulkan/vk_enum_string_helper.h>
 
+#include <stb_image.h>
+
 #ifdef HAVE_NCURSES
 #include <ncurses.h>
 #endif
diff --git a/src/stb_image.c b/src/stb_image.c
new file mode 100644
index 0000000..9177288
--- /dev/null
+++ b/src/stb_image.c
@@ -0,0 +1,2 @@
+#define STB_IMAGE_IMPLEMENTATION
+#include <stb_image.h>
-- 
cgit v1.2.3