From 892b96b35050d1ffb083f05bc9e505820e7da8b6 Mon Sep 17 00:00:00 2001
From: Arnaud Loonstra <arnaud@sphaero.org>
Date: Wed, 10 Jul 2024 13:59:32 +0200
Subject: [PATCH 1/2] replace aux sources with glob to include headers

---
 CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index dc0f2e0..a505940 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -164,7 +164,7 @@ if(WITH_DMX)
 endif(WITH_DMX)
 
 ### PROJECT SOURCES
-aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR}/actors ACTOR_SOURCES)
+file (GLOB ACTOR_SOURCES CONFIGURE_DEPENDS actors/*.h actors/*.c actors/*.cpp actors/*.hpp)
 
 # get git version
 include(GitVersion)

From c710a7e87f3e286d959bcee357be4f9cdd39b71c Mon Sep 17 00:00:00 2001
From: Arnaud Loonstra <arnaud@sphaero.org>
Date: Wed, 10 Jul 2024 14:16:53 +0200
Subject: [PATCH 2/2] minor changes to enable RPI build

---
 CMakeLists.txt | 21 +++------------------
 main.cpp       | 16 ++++++++++++++++
 2 files changed, 19 insertions(+), 18 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a505940..022dba1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -56,6 +56,7 @@ option (WITH_IMGUI_DEMO "Enable ImGUI demo console" ON)
 option (WITH_EMBED_PYTHON "Embed the python interpreter, otherwise use system installed" OFF)
 option (WITH_OPENVR "Enable OpenVR support" ON)
 option (WITH_DMX "Enable DMX support" ON)
+option (RPI "Build for the Raspberry PI" OFF)
 ### END SET OPTIONS
 
 ### EXTERNAL LIBS
@@ -82,17 +83,11 @@ add_subdirectory("ext/rtmidi" EXCLUDE_FROM_ALL)
 # include(CheckIncludeFile)
 # CHECK_INCLUDE_FILE(/opt/vc/include/bcm_host.h RPI) # doesn't work :S
 # Just check if the file is there
-if (EXISTS "/opt/vc/include/bcm_host.h")
+if (RPI)
     message(STATUS "Enabling building for the Raspberry Pi")
-    set(RPI "ON")
     add_definitions(-DIMGUI_IMPL_OPENGL_ES2)
     set(WITH_OPENVR "OFF")
-endif(EXISTS "/opt/vc/include/bcm_host.h")
-if (EXISTS "/usr/include/bcm_host.h")
-    message(STATUS "Enabling building for the Raspberry Pi on Raspberry Pi OS")
-    set(RPI4 "ON")
-    add_definitions(-DIMGUI_IMPL_OPENGL_ES2)
-endif(EXISTS "/usr/include/bcm_host.h")
+endif(RPI)
 
 # External system libraries through find_package
 find_package(libzmq REQUIRED)
@@ -347,16 +342,6 @@ elseif (RPI)
         sphactor-static
         rtmidi
         ${Python3_LIBRARIES}
-        -lasound -ldl -L/opt/vc/lib -lbrcmGLESv2)
-    target_compile_options(gazebosc PUBLIC -D__LINUX_ALSA__ )
-elseif (RPI4)
-    list(APPEND DIRS "${CMAKE_CURRENT_SOURCE_DIR}/ext/openvr/bin/linuxarm64")
-    target_link_libraries(gazebosc PUBLIC
-        SDL2-static
-        sphactor-static
-        rtmidi
-        ${OPENVR_LIBRARIES}
-        ${Python3_LIBRARIES}
         -lasound -ldl -lGLESv2)
     target_compile_options(gazebosc PUBLIC -D__LINUX_ALSA__ )
 else()
diff --git a/main.cpp b/main.cpp
index c95a99d..4eabc35 100644
--- a/main.cpp
+++ b/main.cpp
@@ -564,7 +564,22 @@ ImGuiIO& ImGUIInit(SDL_Window* window, SDL_GLContext* gl_context, const char* gl
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/ProggyTiny.ttf", 10.0f);
     //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, NULL, io.Fonts->GetGlyphR>
     //IM_ASSERT(font != NULL);
+#if defined(IMGUI_IMPL_OPENGL_ES2) // For the RPI
+    ifd::FileDialog::Instance().CreateTexture = [](uint8_t* data, int w, int h, char fmt) -> void* {
+        GLuint tex;
+        glGenTextures(1, &tex);
+        glBindTexture(GL_TEXTURE_2D, tex);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
+        glGenerateMipmap(GL_TEXTURE_2D);
+        glBindTexture(GL_TEXTURE_2D, 0);
 
+        return (void*)tex;
+    };
+#else
     // ImFileDialog requires you to set the CreateTexture and DeleteTexture
     ifd::FileDialog::Instance().CreateTexture = [](uint8_t* data, int w, int h, char fmt) -> void* {
         GLuint tex;
@@ -582,6 +597,7 @@ ImGuiIO& ImGUIInit(SDL_Window* window, SDL_GLContext* gl_context, const char* gl
 
         return (void*)tex;
     };
+#endif
     ifd::FileDialog::Instance().DeleteTexture = [](void* tex) {
         GLuint texID = (GLuint)((uintptr_t)tex);
         glDeleteTextures(1, &texID);