build: Updated build steps and docs

README.md

@@ -1 +1,32 @@
-This is a port of POSTAL 1 for the Miyoo Mini+. This source code also includes community patch ([see here for context](https://github.com/RWS-Studios/POSTAL-SourceCode/issues/1)).
+# POSTAL 1 Miyoo Mini+ Port
+
+This is a port of POSTAL 1 for the Miyoo Mini+. This source code also includes community patch ([see here for context](https://github.com/RWS-Studios/POSTAL-SourceCode/issues/1)).
+
+# Build Steps
+
+These steps are distilled from https://github.com/bostrt/sdl2/tree/4f68d46493fc1de447217a36176cffe01e5c8b71?tab=readme-ov-file#build-from-scratch
+
+### Prepare Build Environment
+```shell
+$ cd POSTAL-miyoo/sdl2
+$ docker build -t mmiyoo .
+```
+
+## Enter Build Environment
+```shell
+$ cd POSTAL-miyoo
+$ docker run -it --rm -v $(pwd):/workspace mmiyoo /bin/bash
+```
+
+## Build SDL2
+*Inside container*
+```shell
+$ cd /workspace/sdl2
+$ make cfg
+$ make gpu
+$ make sdl2
+$ cd /workspace
+$ make MIYOO=1
+```
+
+Binary should be at `/workspace/bin/postal1-arm`

makefile

@@ -9,7 +9,16 @@ ifeq ($(WITH_STEAMWORKS),1)
   steamworks := true
 endif
 
-ifeq ($(PANDORA),1)
+ifeq ($(MIYOO),1)
+  macosx := false
+  CPUARCH := arm
+  CC := /opt/mmiyoo/bin/arm-linux-gnueabihf-g++
+  CXX := /opt/mmiyoo/bin/arm-linux-gnueabihf-g++
+  LINKER := /opt/mmiyoo/bin/arm-linux-gnueabihf-g++
+  steamworks := false
+  CFLAGS += -mcpu=cortex-a9 -mfpu=neon -mfloat-abi=hard -ftree-vectorize -ffast-math -DMIYOO
+  CLIENTEXE := $(BINDIR)/postal1-arm
+else ifeq ($(PANDORA),1)
   macosx := false
   CPUARCH := arm
   CC := gcc
@@ -279,7 +288,6 @@ CFLAGS += -DLOCALE=US -DTARGET=POSTAL_2015
 
 # includes ...
 CFLAGS += -I$(SRCDIR)
-CFLAGS += -I$(SRCDIR)/SDL2/include
 CFLAGS += -I$(SRCDIR)/RSPiX
 CFLAGS += -I$(SRCDIR)/RSPiX/Inc
 CFLAGS += -I$(SRCDIR)/RSPiX/Src
@@ -300,7 +308,13 @@ ifeq ($(strip $(expiring_beta)),true)
   CFLAGS += -DBETAEXPIRE=$(shell date +%s)
 endif
 
-ifeq ($(strip $(macosx)),true)
+ifeq ($(MIYOO),1)
+  CFLAGS += -I/workspace/sdl2/sdl2/include
+  LDFLAGS += -L/workspace/sdl2/sdl2/build/.libs -lSDL2
+  LDFLAGS += -L /workspace/sdl2/sdl2 -L /workspace/sdl2/mmiyoo/lib
+  LDFLAGS += -lEGL -lGLESv2
+  LDFLAGS += -lmi_ao -lshmvar -lmi_common -lmi_sys -lmi_gfx
+else ifeq ($(strip $(macosx)),true)
   CFLAGS += -arch i386 -mmacosx-version-min=10.6
   LDFLAGS += -arch i386 -mmacosx-version-min=10.6
   LDFLAGS += -framework CoreFoundation -framework Cocoa