add base code for windowing and opengl crt-shader.

1 files changed, 122 insertions, 0 deletions

diff --git a/base/base.c b/base/base.c
new file mode 100644
index 0000000..4c6fbe3
--- /dev/null
+++ b/base/base.c
@@ -0,0 +1,122 @@
+#define _GNU_SOURCE
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <time.h>
+#include <inttypes.h>
+#include <immintrin.h>
+#include <unistd.h>
+
+#ifdef _WIN32
+	#define WIN32_LEAN_AND_MEAN
+	#define NOMINMAX
+	#undef NOCRYPT
+	#include <windows.h>
+	#include <mmsystem.h>
+#elif defined(__linux__)
+	#include <dlfcn.h>
+	// #include <sched.h>
+	// #include <unistd.h>
+#endif
+
+#include "settings.h"
+#ifdef PROFILER
+#define STB_SPRINTF_IMPLEMENTATION
+#define STB_SPRINTF_NOFLOAT
+#define STB_SPRINTF_STATIC
+#include "stb_sprintf.h"
+#define DEBUG_PRINT(format, ...) do { \
+    char buf[512]; \
+    int len = stbsp_snprintf(buf, sizeof(buf), format, ##__VA_ARGS__); \
+    write(STDOUT_FILENO, buf, len); \
+} while(0)
+#else
+#define DEBUG_PRINT(...)
+#endif
+
+#include "opengl_loader.c"
+
+#include "incbin.h"
+#include "ugg.h"
+#include "state.c"
+#include "common.h"
+
+
+#include "opengl.c"
+#include "render.c"
+#include <mkfw/mkfw.c>
+
+#ifdef PROFILER
+#include "overlay.c"
+#endif
+#include "audio.c"
+#include "callbacks.c"
+
+/* [=]===^=[ main ]=================================================================^===[=] */
+int main(int argc, char **argv) {
+	state.toggle_crt_emulation = true;
+	mkfw_init(SCREEN_WIDTH*3, SCREEN_HEIGHT*3);
+	mkfw_set_swapinterval(0);
+	mkfw_set_window_min_size_and_aspect(SCREEN_WIDTH*3, SCREEN_HEIGHT*3, 4, 3);
+	mkfw_set_key_callback(key_callback);
+	mkfw_set_mouse_move_delta_callback(mouse_move_callback);
+	mkfw_set_mouse_button_callback(mouse_button_callback);
+	mkfw_set_framebuffer_size_callback(framebuffer_callback);
+	opengl_setup(vertex_shader_start, fragment_shader_start);
+	change_resolution(SCREEN_WIDTH, SCREEN_HEIGHT);
+#ifdef PROFILER
+	overlay_init();
+#endif
+	init_callback();
+	audio_initialize();
+
+	set_decay(20);
+
+	bool running = true;
+	uint64_t next_update = mkfw_gettime() + FRAMETIME;
+	while(running && !mkfw_should_close()) {
+		mkfw_pump_messages();
+		if(key_pressed(MKS_KEY_ESCAPE)) { running = false; }
+
+#ifdef PROFILER
+		reset_profiling_data();
+#endif
+		render_callback();
+		apply_phosphor_decay();
+		update_keyboard_state();
+		update_modifier_state();
+		update_mouse_state();
+		state.frame_number++;
+
+#ifndef PERF_TEST
+		render_frame();
+#ifdef PROFILER
+		debug_render();
+#endif
+
+		uint64_t now = mkfw_gettime();
+		int64_t remaining = next_update - now;
+		if(remaining > 0) {
+			if(remaining > SLEEP_MARGIN_NS) {
+				mkfw_sleep(remaining - SLEEP_MARGIN_NS);
+			}
+			while(mkfw_gettime() < next_update) { /**/ }
+		} else {
+			next_update = now;
+		}
+		next_update += FRAMETIME;
+
+		mkfw_swap_buffers();
+#endif
+	}
+
+#ifdef PROFILER
+	overlay_shutdown();
+#endif
+	audio_shutdown();
+	mkfw_cleanup();
+	return 0;
+}