From ccf5583e6494fe5dd7730f00ea1295dae8154757 Mon Sep 17 00:00:00 2001
From: 0scar <qgt268@alumni.ku.dk>
Date: Tue, 6 Feb 2024 14:35:37 +0100
Subject: Add threads (?)

---
 src/core/CMakeLists.txt               |  1 +
 src/core/include/engine/core/thread.h | 12 +++++++++++
 src/core/src/loop.c                   | 26 ------------------------
 src/core/src/thread.c                 | 38 +++++++++++++++++++++++++++++++++++
 src/resources/src/textures.c          |  2 ++
 5 files changed, 53 insertions(+), 26 deletions(-)
 create mode 100644 src/core/include/engine/core/thread.h
 create mode 100644 src/core/src/thread.c

diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index a9e2b6d..c75cdf6 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -7,6 +7,7 @@ add_library(daw_core
   src/loop.c
   src/memory.c
   src/state.c
+  src/thread.c
   )
 
 set_property(SOURCE src/loop.c APPEND PROPERTY OBJECT_DEPENDS ${GLAD_HEADER})
diff --git a/src/core/include/engine/core/thread.h b/src/core/include/engine/core/thread.h
new file mode 100644
index 0000000..ee61893
--- /dev/null
+++ b/src/core/include/engine/core/thread.h
@@ -0,0 +1,12 @@
+#ifndef THREAD_H
+#define THREAD_H
+
+#include <engine/core/types.h>
+
+typedef u64 thread_t;
+typedef void*(thread_fn(void*));
+
+thread_t thread_spawn(thread_fn* routine, void* arg);
+void thread_join(thread_t thread);
+
+#endif
diff --git a/src/core/src/loop.c b/src/core/src/loop.c
index 721e66f..a176394 100644
--- a/src/core/src/loop.c
+++ b/src/core/src/loop.c
@@ -29,32 +29,6 @@
 
 #define DEFAULT_NUM_PROCS 8
 
-#ifdef BENCHMARK
-#define BENCHEXPR(timevar, expr)                                               \
-  {                                                                            \
-    f64 t = get_time();                                                    \
-    expr timevar += get_time() - t;                                        \
-  }
-
-extern i32 drawcall_len;
-
-#else
-#define BENCHEXPR(timevar, expr) expr
-#endif
-
-
-
-
-
-
-
-
-
-
-
-
-
-static u64 FPS_CAP = 50;
 Platform* GLOBAL_PLATFORM = NULL;
 
 input_callback_t* callbacks[128];
diff --git a/src/core/src/thread.c b/src/core/src/thread.c
new file mode 100644
index 0000000..8c76e4a
--- /dev/null
+++ b/src/core/src/thread.c
@@ -0,0 +1,38 @@
+// The backend used :)
+#include <pthread.h>
+
+#include <engine/core/logging.h>
+#include <engine/core/thread.h>
+
+thread_t thread_spawn(thread_fn* routine, void* arg) {
+  pthread_t t;
+  pthread_attr_t attr;
+
+  if (pthread_attr_init(&attr)) {
+    ERROR("Failed to create thread attribute");
+    return -1;
+  }
+
+  if (pthread_create(&t, &attr, routine, arg)) {
+    ERROR("Failed to spawn new thread");
+  }
+
+  // This compile-time check should only be run once, but i am lazy and have
+  // spent too much time refactoring
+  if (sizeof(thread_t) < sizeof(pthread_t)) {
+    ERROR("THE SIZE AINT BIG ENOUGH!");
+    exit(EXIT_FAILURE);
+  }
+
+  if(pthread_attr_destroy(&attr)) {
+    ERROR("Failed to destroy thread attribute");
+  }
+  // this little trick might cost us 40 years
+  return (thread_t)t;
+}
+
+void thread_join(thread_t thread) {
+  if(pthread_join((pthread_t)thread, NULL)) {
+    ERROR("Unable to join thread");
+  }
+}
diff --git a/src/resources/src/textures.c b/src/resources/src/textures.c
index 622c4b5..cde56b7 100644
--- a/src/resources/src/textures.c
+++ b/src/resources/src/textures.c
@@ -1,6 +1,8 @@
 #include <engine/core/logging.h>
 #include <engine/resources.h>
 
+// Use the engine/render.h backend to create a renderer-specific texture
+
 Texture* load_texture(void* render, const Asset_TextureSpec* ts) {
   Texture* t = NULL;
 
-- 
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