Android Axmol from Cocos2d-x project - Not copying shaders

[IcemarkUK]

So I finished up OSX, iOS, and kinda Windows. (Issue with my multi assets folders and Symlinks)

Anyway, started the Android. Everything builds ok but it crashes when Loading the Native Library.

    protected void onLoadNativeLibraries() {
        try {
            ApplicationInfo ai = getPackageManager().getApplicationInfo(getPackageName(), PackageManager.GET_META_DATA);
            Bundle bundle = ai.metaData;
            String libName = bundle.getString("android.app.lib_name");
            System.loadLibrary(libName); << INSIDE HERE
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

No proper error just an sig-sego crash.

Nothing much in logcat

2024-02-19 01:34:32.479 28956-28956 System.out              com.chilli.midnight                  I  Debugger has connected
2024-02-19 01:34:32.480 28956-28956 System.out              com.chilli.midnight                  I  waiting for debugger to settle...
2024-02-19 01:34:32.680 28956-28956 System.out              com.chilli.midnight                  I  waiting for debugger to settle...
2024-02-19 01:34:32.881 28956-28956 System.out              com.chilli.midnight                  I  waiting for debugger to settle...
2024-02-19 01:34:33.081 28956-28956 System.out              com.chilli.midnight                  I  waiting for debugger to settle...
2024-02-19 01:34:33.282 28956-28956 System.out              com.chilli.midnight                  I  waiting for debugger to settle...
2024-02-19 01:34:33.482 28956-28956 System.out              com.chilli.midnight                  I  waiting for debugger to settle...
2024-02-19 01:34:33.683 28956-28956 System.out              com.chilli.midnight                  I  waiting for debugger to settle...
2024-02-19 01:34:33.884 28956-28956 System.out              com.chilli.midnight                  I  waiting for debugger to settle...
2024-02-19 01:34:34.086 28956-28956 System.out              com.chilli.midnight                  I  waiting for debugger to settle...
2024-02-19 01:34:34.287 28956-28956 System.out              com.chilli.midnight                  I  waiting for debugger to settle...
2024-02-19 01:34:34.488 28956-28956 System.out              com.chilli.midnight                  I  debugger has settled (1397)
2024-02-19 01:34:34.548 28956-28956 ziparchive              com.chilli.midnight                  W  Unable to open '/data/app/~~8TJLNrZ08FkWTAZ8amM9aQ==/com.chilli.midnight-re2yXbCjnnoHRqwqRzxpWw==/base.dm': No such file or directory
2024-02-19 01:34:34.548 28956-28956 ziparchive              com.chilli.midnight                  W  Unable to open '/data/app/~~8TJLNrZ08FkWTAZ8amM9aQ==/com.chilli.midnight-re2yXbCjnnoHRqwqRzxpWw==/base.dm': No such file or directory
2024-02-19 01:34:34.747 28956-28956 nativeloader            com.chilli.midnight                  D  Configuring clns-4 for other apk /data/app/~~8TJLNrZ08FkWTAZ8amM9aQ==/com.chilli.midnight-re2yXbCjnnoHRqwqRzxpWw==/base.apk. target_sdk_version=33, uses_libraries=, library_path=/data/app/~~8TJLNrZ08FkWTAZ8amM9aQ==/com.chilli.midnight-re2yXbCjnnoHRqwqRzxpWw==/lib/arm64:/data/app/~~8TJLNrZ08FkWTAZ8amM9aQ==/com.chilli.midnight-re2yXbCjnnoHRqwqRzxpWw==/base.apk!/lib/arm64-v8a, permitted_path=/data:/mnt/expand:/data/user/0/com.chilli.midnight
2024-02-19 01:34:34.988 28956-28956 GraphicsEnvironment     com.chilli.midnight                  V  ANGLE Developer option for 'com.chilli.midnight' set to: 'default'
2024-02-19 01:34:34.989 28956-28956 GraphicsEnvironment     com.chilli.midnight                  V  ANGLE GameManagerService for com.chilli.midnight: false
2024-02-19 01:34:34.990 28956-28956 GraphicsEnvironment     com.chilli.midnight                  V  Neither updatable production driver nor prerelease driver is supported.
2024-02-19 01:34:35.014 28956-28956 NetworkSecurityConfig   com.chilli.midnight                  D  No Network Security Config specified, using platform default
2024-02-19 01:34:35.265 28956-28956 NetworkSecurityConfig   com.chilli.midnight                  D  No Network Security Config specified, using platform default
2024-02-19 01:34:35.283 28956-29043 OpenGLRenderer          com.chilli.midnight                  D  RenderThread::requireGlContext()
2024-02-19 01:34:36.081 28956-29043 OpenGLRenderer          com.chilli.midnight                  D  RenderThread::setGrContext()
2024-02-19 01:34:36.149 28956-28956 DecorView               com.chilli.midnight                  I  [INFO] isPopOver=false config=true
2024-02-19 01:34:36.151 28956-28956 DecorView               com.chilli.midnight                  I  updateCaptionType: isFloating=false isApplication=true hasWindowDecorCaption=false this=DecorView@c503253[]
2024-02-19 01:34:36.151 28956-28956 DecorView               com.chilli.midnight                  D  setCaptionType = 0, this = DecorView@c503253[]
2024-02-19 01:34:36.160 28956-28956 DecorView               com.chilli.midnight                  I  getCurrentDensityDpi: from real metrics. densityDpi=213 msg=resources_loaded
2024-02-19 01:34:36.161 28956-28956 DecorView               com.chilli.midnight                  I  setWindowBackground: isPopOver=false color=ff010101 d=android.graphics.drawable.StateListDrawable@d8ca889

I was concerned that my assets were the problem but investigating the apk and comparing against a blank generated project, it looks like it's the shaders that are not making it to the asset folder.

Branch
PR

[rh101]

Does the proj.android_midnight/app/build/runtime/axslc path exist? Check if all the shaders have been processed and put into that folder.

Knowing if they exist in that folder may help narrow down the problem.

[rh101]

The problem is in axmol/cmake/Modules/AXBuildSet.cmake:

# configure android GLSLCC compile output, this is the first include cmake module
if (ANDROID)
    file(TO_NATIVE_PATH "${PROJECT_SOURCE_DIR}/proj.android/app/build/runtime/axslc" _GLSLCC_OUT_DIR)
    set(GLSLCC_OUT_DIR "${_GLSLCC_OUT_DIR}" CACHE STRING "" FORCE)
    message(AUTHOR_WARNING "Set GLSLCC_OUT_DIR to ${GLSLCC_OUT_DIR} for android")
endif()

The project path is hard-coded in there to proj.android. It is probably best not to hard-code project-side paths in the engine scripts, since the engine has no control over them.

@halx99 Can this be changed so that the game project is in full control of what paths it uses, and make it responsible for passing the correct paths to the engine script?

Can also just have that section in the project CMakeLists.txt instead of AXBuildSet.cmake if that makes it easier, as long as it's defined before AXBuildHelpers.cmake is processed.

[halx99]

I have no idea how to control it yet

[IcemarkUK]

So, I flicked back to proj_android and fixed up the gradle, but to exactly the same end. The shaders are there now, so they obviously weren't the cause of the problem. Still crashes.

[rh101]

I'm certain that I've seen this before, and I vaguely recall that the only way I caught it was to put a breakpoint as early as possible, and then step through the code. There was just no other info to go off, so it was the only way to narrow it down.

[IcemarkUK]

The last place I can run to is the call to LoadLibrary.

cocos_android_app_init doesn't get called and therefore AppDelegate isn't initiated.

I'm not sure how cocos_android_app_init is meant to be called... I'm not sure of the lifecycle of Native libraries.

Bingo! Just typing this gave me the answer. I haven't renamed the call to axmol_android_app_init

[rh101]

@halx99 How about this:

In AXBuildSet.cmake:

if (ANDROID)
    if (NOT AX_ANDROID_PROJECT_DIR)
        set(AX_ANDROID_PROJECT_DIR "proj.android")
    endif()

    file(TO_NATIVE_PATH "${PROJECT_SOURCE_DIR}/${AX_ANDROID_PROJECT_DIR}/app/build/runtime/axslc" _GLSLCC_OUT_DIR)
    set(GLSLCC_OUT_DIR "${_GLSLCC_OUT_DIR}")
    message(AUTHOR_WARNING "Set GLSLCC_OUT_DIR to ${GLSLCC_OUT_DIR} for android")
endif()

If AX_ANDROID_PROJECT_DIR is not set, then it defaults to proj.android.

We don't need to change the template projects in this case, since a developer can simply override the AX_ANDROID_PROJECT_DIR in the [project]/CMakeLists.txt if they need to. Using the project from @IcemarkUK as an example:

project(${APP_NAME})

if(ANDROID)
    set(AX_ANDROID_PROJECT_DIR proj.android_${APP_NAME})
endif()

It results in this output:

C/C++: CMake Warning (dev) at G:/game_engines/axmol/cmake/Modules/AXBuildSet.cmake:37 (message):
C/C++:   Set GLSLCC_OUT_DIR to
C/C++:   G:\dev\tests\lordsofmidnight\main\midnight\proj.android_midnight\app\build\runtime\axslc
C/C++:   for android

So GLSLCC_OUT_DIR is now the correct path. Also, was there a reason for GLSLCC_OUT_DIR to be a cached value?

[IcemarkUK]

In this case, I might return to proj.android and use variants to switch between midnight and revenge. I didn't think about them when I swapped from Marmalade to Cocos2d-x. I'll rename to proj.android to test it's working.

However that addition would be nice as I would actually like all the projects to sit in a Projects folder - for housekeeping. :)

[rh101]

@IcemarkUK A minor issue in the app/build.gradle:

    sourceSets.main {
        java.srcDir "src"
        res.srcDir "res"
        manifest.srcFile "AndroidManifest.xml"
        assets.srcDir "../../Resources"
        assets.srcDir "../../Resources-midnight"
    }

Should be:

    sourceSets.main {
        java.srcDir "src"
        res.srcDir "res"
        manifest.srcFile "AndroidManifest.xml"
        assets.srcDir "build/assets"
    }

Otherwise it won't copy the shaders over correctly. There is no reason to explicitly set the assets.srcDir to point to the resource folders in the project, since they would have already been copied over in this section (which is correct):

android.applicationVariants.configureEach { variant ->
    def variantName = variant.name.capitalize()
    tasks.register("copy${variantName}ContentToAssets") {
        doFirst {
            delete "${projectDir}/build/assets"
        }
        doLast {
            copy {
                from "${projectDir}/../../Content"
                into "${projectDir}/build/assets"
                exclude "**/*.gz"
            }
            copy {
                from "${projectDir}/build/runtime/axslc"
                into "${projectDir}/build/assets/axslc"
            }
            copy {
                from "${projectDir}/../../Resources"
                into "${projectDir}/build/assets"
                exclude "**/*.gz"
            }
            copy {
                from "${projectDir}/../../Resources-midnight"
                into "${projectDir}/build/assets"
                exclude "**/*.gz"
            }
        }
    }
}

[IcemarkUK]

For the record, I have now moved the project to use Flavours. So I am now building both midnight and revenge from the same project.

[halx99]

I prefer pass gradle projectDir to cmake in app/build.gradle

[rh101]

If that is possible, then it would be good. Given that @IcemarkUK has it working using the variant flavors, there is no rush to change the existing behavior.

[halx99]

Can controlled by engine axutils.gradle, will create a PR later

[halx99]

Tracking PR: #1705