From e90b4d8915d593ab57cedfe988da8fbbd18b4408 Mon Sep 17 00:00:00 2001
From: kernelkinetic <67117582+kernelkinetic@users.noreply.github.com>
Date: Sun, 27 Sep 2020 10:18:43 +0200
Subject: Platform DRM (#1388)

* updated README.md

* fixed CMakeLists.txt to allow building and debugging with Visual Studio Code and CMAKE Tools extension

* added PLATFORM_DRM
contains mouse pointer code from https://github.com/chriscamacho

* removed redundant cleanup in InitGraphicsDevice

* fixed DRM connector mode selection

* added choosen DRM connected mode to log output

* added respecting TargetFPS on DRM mode selection, default to 60

* added support for GetMonitorRefreshRate

* changed SUPPORT_MOUSE_CURSOR_RPI to SUPPORT_MOUSE_CURSOR_NATIVE

* changed avoidProgressive to allowInterlaced

* cleanup, function extraction and improved mode selection

* README reverted to original for PR

* line endings fixed for core.c

* removed old code

* mouse pointer reverted to small square

* replaced SetGraphicDeviceName() by DEFAULT_GRAPHIC_DEVICE_DRM

Co-authored-by: kernelkinetic <kernelkinetic@outlook.com>
---
 examples/Makefile | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

(limited to 'examples')

diff --git a/examples/Makefile b/examples/Makefile
index 21482851..6ca8b6cf 100644
--- a/examples/Makefile
+++ b/examples/Makefile
@@ -96,6 +96,12 @@ ifeq ($(PLATFORM),PLATFORM_RPI)
         PLATFORM_OS=LINUX
     endif
 endif
+ifeq ($(PLATFORM),PLATFORM_DRM)
+    UNAMEOS=$(shell uname)
+    ifeq ($(UNAMEOS),Linux)
+        PLATFORM_OS=LINUX
+    endif
+endif
 
 # RAYLIB_PATH adjustment for different platforms.
 # If using GNU make, we can get the full path to the top of the tree. Windows? BSD?
@@ -112,6 +118,9 @@ endif
 ifeq ($(PLATFORM),PLATFORM_RPI)
     RAYLIB_PATH       ?= /home/pi/raylib
 endif
+ifeq ($(PLATFORM),PLATFORM_DRM)
+    RAYLIB_PATH       ?= /home/pi/raylib
+endif
 
 ifeq ($(PLATFORM),PLATFORM_WEB)
     # Emscripten required variables
@@ -221,6 +230,9 @@ endif
 ifeq ($(PLATFORM),PLATFORM_RPI)
     CFLAGS += -std=gnu99
 endif
+ifeq ($(PLATFORM),PLATFORM_DRM)
+    CFLAGS += -std=gnu99 -DEGL_NO_X11
+endif
 ifeq ($(PLATFORM),PLATFORM_WEB)
     # -Os                        # size optimization
     # -O2                        # optimization level 2, if used, also set --memory-init-file 0
@@ -259,6 +271,10 @@ ifeq ($(PLATFORM),PLATFORM_RPI)
     INCLUDE_PATHS += -I/opt/vc/include/interface/vmcs_host/linux
     INCLUDE_PATHS += -I/opt/vc/include/interface/vcos/pthreads
 endif
+ifeq ($(PLATFORM),PLATFORM_DRM)
+    # DRM required libraries
+    INCLUDE_PATHS += -I/usr/include/libdrm
+endif
 ifeq ($(PLATFORM),PLATFORM_DESKTOP)
     ifeq ($(PLATFORM_OS),BSD)
         # Consider -L$(RAYLIB_H_INSTALL_PATH)
@@ -299,6 +315,10 @@ ifeq ($(PLATFORM),PLATFORM_RPI)
     LDFLAGS += -L/opt/vc/lib
 endif
 
+ifeq ($(PLATFORM),PLATFORM_DRM)
+    LDFLAGS += -lGLESv2 -lEGL -ldrm -lgbm
+endif
+
 # Define any libraries required on linking
 # if you want to link libraries (libname.so or libname.a), use the -lname
 ifeq ($(PLATFORM),PLATFORM_DESKTOP)
@@ -351,6 +371,11 @@ ifeq ($(PLATFORM),PLATFORM_RPI)
     # NOTE: Required packages: libasound2-dev (ALSA)
     LDLIBS = -lraylib -lbrcmGLESv2 -lbrcmEGL -lpthread -lrt -lm -lbcm_host -ldl
 endif
+ifeq ($(PLATFORM),PLATFORM_DRM)
+    # Libraries for DRM compiling
+    # NOTE: Required packages: libasound2-dev (ALSA)
+    LDLIBS = -lraylib -lGLESv2 -lEGL -lpthread -lrt -lm -lgbm -ldrm -ldl
+endif
 ifeq ($(PLATFORM),PLATFORM_WEB)
     # Libraries for web (HTML5) compiling
     LDLIBS = $(RAYLIB_RELEASE_PATH)/libraylib.a
@@ -522,6 +547,10 @@ ifeq ($(PLATFORM),PLATFORM_RPI)
 	find . -type f -executable -delete
 	rm -fv *.o
 endif
+ifeq ($(PLATFORM),PLATFORM_DRM)
+	find . -type f -executable -delete
+	rm -fv *.o
+endif
 ifeq ($(PLATFORM),PLATFORM_WEB)
 	del *.o *.html *.js
 endif
-- 
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