From 1aa0e17df7c325a41de8cf8a57f52ed853f08bf3 Mon Sep 17 00:00:00 2001
From: "John Wilbert M. Villamor" <lameguy64@gmail.com>
Date: Fri, 24 Apr 2020 19:01:28 +0800
Subject: Refined toolchain instructions, organized examples, added automatic
 retry for CdRead(), added FIOCSCAN ioctl in psxsio TTY driver, added tty and
 console examples.

---
 examples/beginner/hello/main.c   | 118 +++++++++++++++++++++++++++++++++++++++
 examples/beginner/hello/makefile |  60 ++++++++++++++++++++
 2 files changed, 178 insertions(+)
 create mode 100644 examples/beginner/hello/main.c
 create mode 100644 examples/beginner/hello/makefile

(limited to 'examples/beginner')

diff --git a/examples/beginner/hello/main.c b/examples/beginner/hello/main.c
new file mode 100644
index 0000000..1f02f0b
--- /dev/null
+++ b/examples/beginner/hello/main.c
@@ -0,0 +1,118 @@
+/* 
+ * LibPSn00b Example Programs
+ *
+ * Hello World Example
+ * 2019-2020 Meido-Tek Productions / PSn00bSDK Project
+ *
+ * The obligatory hello world example normally included in nearly every
+ * SDK package. This example should also get you started in how to manage
+ * the display using psxgpu.
+ *
+ * Example by Lameguy64
+ *
+ *
+ * Changelog:
+ *
+ *	  January 1, 2020 - Initial version
+ */
+ 
+#include <stdio.h>
+#include <sys/types.h>
+#include <psxetc.h>
+#include <psxgte.h>
+#include <psxgpu.h>
+
+
+// Define display/draw environments for double buffering
+DISPENV disp[2];
+DRAWENV draw[2];
+int db;
+
+
+// Init function
+void init(void)
+{
+	// This not only resets the GPU but it also installs the library's
+	// ISR subsystem to the kernel
+	ResetGraph(0);
+	
+	// Define display environments, first on top and second on bottom
+	SetDefDispEnv(&disp[0], 0, 0, 320, 240);
+	SetDefDispEnv(&disp[1], 0, 240, 320, 240);
+	
+	// Define drawing environments, first on bottom and second on top
+	SetDefDrawEnv(&draw[0], 0, 240, 320, 240);
+	SetDefDrawEnv(&draw[1], 0, 0, 320, 240);
+	
+	// Set and enable clear color
+	setRGB0(&draw[0], 0, 96, 0);
+	setRGB0(&draw[1], 0, 96, 0);
+	draw[0].isbg = 1;
+	draw[1].isbg = 1;
+	
+	// Clear double buffer counter
+	db = 0;
+	
+	// Apply the GPU environments
+	PutDispEnv(&disp[db]);
+	PutDrawEnv(&draw[db]);
+	
+	// Load test font
+	FntLoad(960, 0);
+	
+	// Open up a test font text stream of 100 characters
+	FntOpen(0, 8, 320, 224, 0, 100);
+}
+
+// Display function
+void display(void)
+{
+	// Flip buffer index
+	db = !db;
+	
+	// Wait for all drawing to complete
+	DrawSync(0);
+	
+	// Wait for vertical sync to cap the logic to 60fps (or 50 in PAL mode)
+	// and prevent screen tearing
+	VSync(0);
+
+	// Switch pages	
+	PutDispEnv(&disp[db]);
+	PutDrawEnv(&draw[db]);
+	
+	// Enable display output, ResetGraph() disables it by default
+	SetDispMask(1);
+	
+}
+
+// Main function, program entrypoint
+int main(int argc, const char *argv[])
+{
+	int counter;
+
+	// Init stuff	
+	init();
+	
+	// Main loop
+	counter = 0;
+	while(1)
+	{
+	
+		// Print the obligatory hello world and counter to show that the
+		// program isn't locking up to the last created text stream
+		FntPrint(-1, "HELLO WORLD\n");
+		FntPrint(-1, "COUNTER=%d\n", counter);
+		
+		// Draw the last created text stream
+		FntFlush(-1);
+		
+		// Update display
+		display();
+		
+		// Increment the counter
+		counter++;
+	}
+	
+	return 0;
+}
diff --git a/examples/beginner/hello/makefile b/examples/beginner/hello/makefile
new file mode 100644
index 0000000..1893a48
--- /dev/null
+++ b/examples/beginner/hello/makefile
@@ -0,0 +1,60 @@
+include ../../sdk-common.mk
+
+# Project target name
+TARGET		= hello.elf
+
+# Searches for C, C++ and S (assembler) files in local directory
+CFILES		= $(notdir $(wildcard *.c))
+CPPFILES 	= $(notdir $(wildcard *.cpp))
+AFILES		= $(notdir $(wildcard *.s))
+
+# Determine object files
+OFILES		= $(addprefix build/,$(CFILES:.c=.o)) \
+			$(addprefix build/,$(CPPFILES:.cpp=.o)) \
+			$(addprefix build/,$(AFILES:.s=.o))
+
+# Project specific include and library directories
+# (use -I for include dirs, -L for library dirs)
+INCLUDE	 	+=
+LIBDIRS		+=
+
+# Libraries to link
+LIBS		= -lpsxetc -lpsxgpu -lpsxgte -lpsxspu -lpsxapi -lc
+
+# C compiler flags
+CFLAGS		= -g -O2 -fno-builtin -fdata-sections -ffunction-sections
+
+# C++ compiler flags
+CPPFLAGS	= $(CFLAGS) -fno-exceptions
+
+# Assembler flags
+AFLAGS		= -g -msoft-float
+
+# Linker flags
+LDFLAGS		= -g -Ttext=0x80010000 -gc-sections \
+			-T $(GCC_BASE)/mipsel-unknown-elf/lib/ldscripts/elf32elmip.x
+
+# Toolchain programs
+CC			= $(PREFIX)gcc
+CXX			= $(PREFIX)g++
+AS			= $(PREFIX)as
+LD			= $(PREFIX)ld
+
+all: $(OFILES)
+	$(LD) $(LDFLAGS) $(LIBDIRS) $(OFILES) $(LIBS) -o $(TARGET)
+	elf2x -q $(TARGET)
+	
+build/%.o: %.c
+	@mkdir -p $(dir $@)
+	$(CC) $(CFLAGS) $(INCLUDE) -c $< -o $@
+	
+build/%.o: %.cpp
+	@mkdir -p $(dir $@)
+	$(CXX) $(AFLAGS) $(INCLUDE) -c $< -o $@
+	
+build/%.o: %.s
+	@mkdir -p $(dir $@)
+	$(CC) $(AFLAGS) $(INCLUDE) -c $< -o $@
+	
+clean:
+	rm -rf build $(TARGET) $(TARGET:.elf=.exe)
-- 
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