Initial commit

readme.txt

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+If you want to dev on PS2, you should install this: https://github.com/ps2dev/ps2dev
+
+Note that a lot of things changed inside ps2dev around 2019, making a lot of documentation on the internet obsolete. Don't do what we did and try to use SDL1, it's broken now. Use SDL2.
+
+To make this project, cd into a directory and use "make". You can use ps2-packer to make the resulting elf smaller.
+
+How to debug .ELFs on the PS2 over LAN:
+- Put ps2link on memory card (configs did not load from USB), configure appropriately (IP, netmask, gateway): https://www.psx-place.com/resources/ps2link.949/
+- Start ps2link on PS2
+- Use ps2client (part of ps2dev) on PC to manage PS2
+- Start elf: ps2client -h 192.168.0.x execee host:sdl2.elf
+- Reset: ps2client -h 192.168.0.x reset
+
+Special thanks to:
+- haloopdy for mental support
+- All the people at https://github.com/ps2dev for making this possible
+- https://github.com/fjtrujy/helloWorldPS2 for opening our world

sdl2/Makefile

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+# _____     ___ ____     ___ ____
+#  ____|   |    ____|   |        | |____|
+# |     ___|   |____ ___|    ____| |    \    PS2DEV Open Source Project.
+#-----------------------------------------------------------------------
+# Copyright 2001-2022, ps2dev - http://www.ps2dev.org
+# Licenced under Academic Free License version 2.0
+# Review ps2sdk README & LICENSE files for further details.
+
+EE_BIN = sdl2.elf
+EE_OBJS = main.o
+EE_CFLAGS += -fdata-sections -ffunction-sections -I$(PS2SDK)/ports/include  
+EE_LDFLAGS += -L$(PS2SDK)/ports/lib -L$(GSKIT)/lib -lSDL2 -lgskit -ldmakit -lps2_drivers -Wl,--gc-sections 
+
+ifeq ($(DUMMY_TIMEZONE), 1)
+   EE_CFLAGS += -DDUMMY_TIMEZONE
+endif
+
+ifeq ($(DUMMY_LIBC_INIT), 1)
+   EE_CFLAGS += -DDUMMY_LIBC_INIT
+endif
+
+ifeq ($(KERNEL_NOPATCH), 1)
+   EE_CFLAGS += -DKERNEL_NOPATCH
+endif
+
+ifeq ($(DEBUG), 1)
+  EE_CFLAGS += -DDEBUG -O0 -g
+else 
+  EE_CFLAGS += -Os
+  EE_LDFLAGS += -s
+endif
+
+all: $(EE_BIN)
+
+clean:
+	rm -rf $(EE_OBJS) $(EE_BIN)
+
+# Include makefiles
+include $(PS2SDK)/samples/Makefile.pref
+include $(PS2SDK)/samples/Makefile.eeglobal

sdl2/main.c

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+#include <kernel.h>
+#include "SDL2/SDL.h"
+int printf(const char *format, ...);
+
+char * ps2elf_storage;
+
+int main(int argc, char **argv)
+{
+	// Just some debugging
+	printf("Arguments:\n");
+	for (int i=0; i < argc; i++) {
+		printf("* %d: %s\n",i,argv[i]);
+	}
+	printf("\n");
+	
+	// Getting the device from elf path
+	char * sep = strchr(argv[0], ':');
+	if (sep == NULL) {
+		printf("ERROR: Could not find storage device of elf!\n");
+		return 1;
+	} else {
+		size_t size = sep - argv[0];
+		ps2elf_storage = malloc(size + 1);
+		memcpy(ps2elf_storage,argv[0],size);
+		ps2elf_storage[size] = 0;
+		printf("* Detected storage device: '%s'\n",ps2elf_storage);
+	}
+	
+	// Initializing SDL2
+	printf("[SDL2] Initializing ...\n");
+	SDL_Init(SDL_INIT_VIDEO);
+	
+	printf("[SDL2] Creating window ...\n");
+	int width = 640;
+	int height = 480;
+	SDL_Window * window = SDL_CreateWindow("game",
+		0,0,
+		width,height,
+		0
+	);
+	
+	printf("[SDL2] Grabbing surface ...\n");
+	SDL_Surface * surface = SDL_GetWindowSurface(window);
+	Uint16 * pixels = surface->pixels;
+	Uint32 tracker = 0;
+	
+	// Draw-loop
+	printf("[SDL2] Entering draw-loop ...\n");
+	int x; int y;
+	while (1) {
+		// Just doing some fun animated pattern
+		for (y = 0; y < height; y++) {
+			for (x = 0; x < width; x++) {
+				pixels[(((y * width) + x) + tracker) % (width * height)] = (tracker + (x ^ y)) + y;
+			}
+		}
+		tracker = tracker + 3;
+		SDL_UpdateWindowSurface(window);
+		printf("\r"); fflush(stdout); // printf seems to fire an interrupt, which allows ps2link to reset the console, so we keep sending an "empty" debug message.
+	}
+	return 0;
+}