From ad32ae1720d53421222038f25c0d4a344aacb371 Mon Sep 17 00:00:00 2001
From: jSTE0 <98854293+jSTE0@users.noreply.github.com>
Date: Sat, 19 Mar 2022 18:25:39 +0000
Subject: [PATCH] platforms: Add Miyoo target

Build for Miyoo which has the same ARM926EJ-S CPU as the Wiz/Caanoo
platforms so use similar build flags.
Enable hi-res downscaling by default for the UNAI GPU renderer to scale
to the device's 320x240 screen.
---
 .gitlab-ci.yml                   | 10 ++++++++++
 Makefile.libretro                | 12 ++++++++++++
 frontend/libretro_core_options.h |  4 ++++
 3 files changed, 26 insertions(+)

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index bf05cac3..b777f1b8 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -71,6 +71,10 @@ include:
   # tvOS (AppleTV)
   - project: 'libretro-infrastructure/ci-templates'
     file: '/tvos-arm64.yml'
+
+  # OpenDingux (ARM)
+  - project: 'libretro-infrastructure/ci-templates'
+    file: '/dingux-arm32.yml'
     
   #################################### MISC ##################################
 
@@ -182,3 +186,9 @@ libretro-build-libnx-aarch64:
   extends:
     - .libretro-libnx-static-retroarch-master
     - .core-defs
+
+# Miyoo
+libretro-build-miyoo-arm32:
+  extends:
+    - .libretro-miyoo-arm32-make-default
+    - .core-defs
diff --git a/Makefile.libretro b/Makefile.libretro
index c2fc9d0f..4c60462c 100644
--- a/Makefile.libretro
+++ b/Makefile.libretro
@@ -447,6 +447,18 @@ else ifneq (,$(findstring armv,$(platform)))
 	ARCH = arm
 	DYNAREC = ari64
 
+else ifeq ($(platform), miyoo)
+	TARGET := $(TARGET_NAME)_libretro.so
+	CC = /opt/miyoo/usr/bin/arm-linux-gcc
+	CXX = /opt/miyoo/usr/bin/arm-linux-g++
+	fpic := -fPIC
+	CFLAGS += -mcpu=arm926ej-s -fsingle-precision-constant
+	CFLAGS += -DGPULIB_USE_MMAP -DGPU_UNAI_USE_INT_DIV_MULTINV -D_MIYOO
+	ARCH = arm
+	BUILTIN_GPU = unai
+	DYNAREC = ari64
+	HAVE_NEON = 0
+
 # Emscripten
 else ifeq ($(platform), emscripten)
    TARGET  := $(TARGET_NAME)_libretro_$(platform).bc
diff --git a/frontend/libretro_core_options.h b/frontend/libretro_core_options.h
index 3e1daf2b..7c850aa4 100644
--- a/frontend/libretro_core_options.h
+++ b/frontend/libretro_core_options.h
@@ -834,7 +834,11 @@ struct retro_core_option_definition option_defs_us[] = {
          { "enabled",  NULL },
          { NULL, NULL},
       },
+#ifdef _MIYOO
+      "enabled",
+#else
       "disabled",
+#endif
    },
 #endif /* GPU UNAI Advanced Settings */
 #ifdef THREAD_RENDERING
-- 
2.39.5