Feat[renderer]: Add LTW renderer (#6477)

* Feat[launcher]: start introducing the Tinywrapper renderer

* Feat[launcher]: add renderer, add compatibility checks

* Chore[ltw]: update to latest

* Style[code]: code cosmetic changes

* Legal[ltw]: make LTW optional

* Fix[ltw]: fix actions, add forgotten file

* Workflow[ltw]: disallow forks, allow building on error

.github/workflows/android.yml

@@ -26,6 +26,18 @@ jobs:
           distribution: 'temurin'
           java-version: '8'
 
+      - name: Get LTW
+        uses: dawidd6/action-download-artifact@v2
+        continue-on-error: true
+        with:
+          github_token: ${{secrets.LTW_CLONER_SECRET}}
+          repo: PojavLauncherTeam/BigTinyWrapper
+          workflow: android.yml
+          workflow_conclusion: success
+          name: output-aar
+          path: app_pojavlauncher/libs
+          allow_forks: false
+
       - name: Get JRE 8
         uses: dawidd6/action-download-artifact@v2
         with:

app_pojavlauncher/build.gradle

@@ -227,5 +227,5 @@ dependencies {
 
     // implementation 'net.sourceforge.streamsupport:streamsupport-cfuture:1.7.0'
 
-    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation fileTree(dir: 'libs', include: ['*.jar', '*.aar'])
 }

app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/Tools.java

@@ -22,6 +22,11 @@ import android.database.Cursor;
 import android.hardware.Sensor;
 import android.hardware.SensorManager;
 import android.net.Uri;
+import android.opengl.EGL14;
+import android.opengl.EGLConfig;
+import android.opengl.EGLContext;
+import android.opengl.EGLDisplay;
+import android.opengl.GLES30;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Environment;
@@ -68,6 +73,7 @@ import net.kdt.pojavlaunch.utils.DownloadUtils;
 import net.kdt.pojavlaunch.utils.FileUtils;
 import net.kdt.pojavlaunch.utils.JREUtils;
 import net.kdt.pojavlaunch.utils.JSONUtils;
+import net.kdt.pojavlaunch.utils.MCOptionUtils;
 import net.kdt.pojavlaunch.utils.OldVersionsUtils;
 import net.kdt.pojavlaunch.value.DependentLibrary;
 import net.kdt.pojavlaunch.value.MinecraftAccount;
@@ -178,6 +184,97 @@ public final class Tools {
         NATIVE_LIB_DIR = ctx.getApplicationInfo().nativeLibraryDir;
     }
 
+    /**
+     * Optimization mods based on Sodium can mitigate the render distance issue. Check if Sodium
+     * or its derivative is currently installed to skip the render distance check.
+     * @param gameDir current game directory
+     * @return whether sodium or a sodium-based mod is installed
+     */
+    private static boolean hasSodium(File gameDir) {
+        File modsDir = new File(gameDir, "mods");
+        File[] mods = modsDir.listFiles(file -> file.isFile() && file.getName().endsWith(".jar"));
+        if(mods == null) return false;
+        for(File file : mods) {
+            String name = file.getName();
+            if(name.contains("sodium") ||
+                    name.contains("embeddium") ||
+                    name.contains("rubidium")) return true;
+        }
+        return false;
+    }
+
+    /**
+     * Initialize OpenGL and do checks to see if the GPU of the device is affected by the render
+     * distance issue.
+
+     * Currently only checks whether the user has an Adreno GPU capable of OpenGL ES 3
+     * and surfaceless rendering installed.
+
+     * This issue is caused by a very severe limit on the amount of GL buffer names that could be allocated
+     * by the Adreno properietary GLES driver.
+
+     * @return whether the GPU is affected by the Large Thin Wrapper render distance issue on vanilla
+     */
+    private static boolean affectedByRenderDistanceIssue() {
+        EGLDisplay eglDisplay = EGL14.eglGetDisplay(EGL14.EGL_DEFAULT_DISPLAY);
+        if(eglDisplay == EGL14.EGL_NO_DISPLAY || !EGL14.eglInitialize(eglDisplay, null, 0, null, 0)) return false;
+        int[] egl_attributes = new int[]  {
+                EGL14.EGL_BLUE_SIZE, 8,
+                EGL14.EGL_GREEN_SIZE, 8,
+                EGL14.EGL_RED_SIZE, 8,
+                EGL14.EGL_ALPHA_SIZE, 8,
+                EGL14.EGL_DEPTH_SIZE, 24,
+                EGL14.EGL_SURFACE_TYPE, EGL14.EGL_PBUFFER_BIT,
+                EGL14.EGL_RENDERABLE_TYPE, EGL14.EGL_OPENGL_ES2_BIT,
+                EGL14.EGL_NONE
+        };
+        EGLConfig[] config = new EGLConfig[1];
+        int[] num_configs = new int[]{0};
+        if(!EGL14.eglChooseConfig(eglDisplay, egl_attributes, 0, config, 0, 1, num_configs, 0) || num_configs[0] == 0) {
+            EGL14.eglTerminate(eglDisplay);
+            Log.e("CheckVendor", "Failed to choose an EGL config");
+            return false;
+        }
+        int[] egl_context_attributes = new int[] { EGL14.EGL_CONTEXT_CLIENT_VERSION, 3, EGL14.EGL_NONE };
+        EGLContext context = EGL14.eglCreateContext(eglDisplay, config[0], EGL14.EGL_NO_CONTEXT, egl_context_attributes, 0);
+        if(context == EGL14.EGL_NO_CONTEXT) {
+            Log.e("CheckVendor", "Failed to create a context");
+            EGL14.eglTerminate(eglDisplay);
+            return false;
+        }
+        if(!EGL14.eglMakeCurrent(eglDisplay, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_SURFACE, context)) {
+            Log.e("CheckVendor", "Failed to make context current");
+            EGL14.eglDestroyContext(eglDisplay, context);
+            EGL14.eglTerminate(eglDisplay);
+        }
+        boolean is_adreno = GLES30.glGetString(GLES30.GL_VENDOR).equals("Qualcomm") &&
+                            GLES30.glGetString(GLES30.GL_RENDERER).contains("Adreno");
+        Log.e("CheckVendor", "Running Adreno graphics: "+is_adreno);
+        EGL14.eglMakeCurrent(eglDisplay, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_CONTEXT);
+        EGL14.eglDestroyContext(eglDisplay, context);
+        EGL14.eglTerminate(eglDisplay);
+        return is_adreno;
+    }
+
+    private static boolean checkRenderDistance(File gamedir) {
+        if(!"opengles3_ltw".equals(Tools.LOCAL_RENDERER)) return false;
+        if(!affectedByRenderDistanceIssue()) return false;
+        if(hasSodium(gamedir)) return false;
+
+        int renderDistance;
+        try {
+            MCOptionUtils.load();
+            String renderDistanceString = MCOptionUtils.get("renderDistance");
+            renderDistance = Integer.parseInt(renderDistanceString);
+        }catch (Exception e) {
+            Log.e("Tools", "Failed to check render distance", e);
+            renderDistance = 12; // Assume Minecraft's default render distance
+        }
+        // 7 is the render distance "magic number" above which MC creates too many buffers
+        // for Adreno's OpenGL ES implementation
+        return renderDistance > 7;
+    }
+
     public static void launchMinecraft(final AppCompatActivity activity, MinecraftAccount minecraftAccount,
                                        MinecraftProfile minecraftProfile, String versionId, int versionJavaRequirement) throws Throwable {
         int freeDeviceMemory = getFreeDeviceMemory(activity);
@@ -203,10 +300,27 @@ public final class Tools {
                 // to start after the activity is shown again
             }
         }
-        Runtime runtime = MultiRTUtils.forceReread(Tools.pickRuntime(minecraftProfile, versionJavaRequirement));
-        JMinecraftVersionList.Version versionInfo = Tools.getVersionInfo(versionId);
         LauncherProfiles.load();
         File gamedir = Tools.getGameDirPath(minecraftProfile);
+        if(checkRenderDistance(gamedir)) {
+            LifecycleAwareAlertDialog.DialogCreator dialogCreator = ((alertDialog, dialogBuilder) ->
+                    dialogBuilder.setMessage(activity.getString(R.string.ltw_render_distance_warning_msg))
+                            .setPositiveButton(android.R.string.ok, (d, w)->{}));
+            if(LifecycleAwareAlertDialog.haltOnDialog(activity.getLifecycle(), activity, dialogCreator)) {
+                return;
+            }
+            // If the code goes here, it means that the user clicked "OK". Fix the render distance.
+            try {
+                MCOptionUtils.set("renderDistance", "7");
+                MCOptionUtils.save();
+            }catch (Exception e) {
+                Log.e("Tools", "Failed to fix render distance setting", e);
+            }
+        }
+
+
+        Runtime runtime = MultiRTUtils.forceReread(Tools.pickRuntime(minecraftProfile, versionJavaRequirement));
+        JMinecraftVersionList.Version versionInfo = Tools.getVersionInfo(versionId);
 
 
         // Pre-process specific files
@@ -1271,12 +1385,16 @@ public final class Tools {
         boolean deviceHasVulkan = checkVulkanSupport(context.getPackageManager());
         // Currently, only 32-bit x86 does not have the Zink binary
         boolean deviceHasZinkBinary = !(Architecture.is32BitsDevice() && Architecture.isx86Device());
+        boolean deviceHasOpenGLES3 = JREUtils.getDetectedVersion() >= 3;
+        // LTW is an optional proprietary dependency
+        boolean appHasLtw = new File(Tools.NATIVE_LIB_DIR, "libltw.so").exists();
         List<String> rendererIds = new ArrayList<>(defaultRenderers.length);
         List<String> rendererNames = new ArrayList<>(defaultRendererNames.length);
         for(int i = 0; i < defaultRenderers.length; i++) {
             String rendererId = defaultRenderers[i];
             if(rendererId.contains("vulkan") && !deviceHasVulkan) continue;
             if(rendererId.contains("zink") && !deviceHasZinkBinary) continue;
+            if(rendererId.contains("ltw") && (!deviceHasOpenGLES3 || !appHasLtw)) continue;
             rendererIds.add(rendererId);
             rendererNames.add(defaultRendererNames[i]);
         }

app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/utils/JREUtils.java

@@ -220,9 +220,9 @@ public class JREUtils {
 
         if(LOCAL_RENDERER != null) {
             envMap.put("POJAV_RENDERER", LOCAL_RENDERER);
-            if(LOCAL_RENDERER.equals("opengles3_desktopgl_angle_vulkan")) {
+            if(LOCAL_RENDERER.equals("opengles3_ltw")) {
                 envMap.put("LIBGL_ES", "3");
-                envMap.put("POJAVEXEC_EGL","libEGL_angle.so"); // Use ANGLE EGL
+                envMap.put("POJAVEXEC_EGL","libltw.so"); // Use ANGLE EGL
             }
         }
         if(LauncherPreferences.PREF_BIG_CORE_AFFINITY) envMap.put("POJAV_BIG_CORE_AFFINITY", "1");
@@ -464,7 +464,7 @@ public class JREUtils {
             case "opengles3":
                 renderLibrary = "libgl4es_114.so"; break;
             case "vulkan_zink": renderLibrary = "libOSMesa.so"; break;
-            case "opengles3_desktopgl_angle_vulkan" : renderLibrary = "libtinywrapper.so"; break;
+            case "opengles3_ltw" : renderLibrary = "libltw.so"; break;
             default:
                 Log.w("RENDER_LIBRARY", "No renderer selected, defaulting to opengles2");
                 renderLibrary = "libgl4es_114.so";

app_pojavlauncher/src/main/jni/Android.mk

@@ -8,18 +8,6 @@ HERE_PATH := $(LOCAL_PATH)
 
 LOCAL_PATH := $(HERE_PATH)
 
-include $(CLEAR_VARS)
-LOCAL_MODULE := angle_gles2
-LOCAL_SRC_FILES := tinywrapper/angle-gles/$(TARGET_ARCH_ABI)/libGLESv2_angle.so
-include $(PREBUILT_SHARED_LIBRARY)
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := tinywrapper
-LOCAL_SHARED_LIBRARIES := angle_gles2
-LOCAL_SRC_FILES := tinywrapper/main.c tinywrapper/string_utils.c
-LOCAL_C_INCLUDES := $(LOCAL_PATH)/tinywrapper
-include $(BUILD_SHARED_LIBRARY)
-
 $(call import-module,prefab/bytehook)
 LOCAL_PATH := $(HERE_PATH)
 

app_pojavlauncher/src/main/jni/tinywrapper/main.c

@@ -1,201 +0,0 @@
-//#import <Foundation/Foundation.h>
-#include <stdio.h>
-#include <dlfcn.h>
-
-#include "GL/gl.h"
-#include "GLES3/gl32.h"
-#include "string_utils.h"
-
-#define LOOKUP_FUNC(func) \
-    if (!gles_##func) { \
-        gles_##func = dlsym(RTLD_NEXT, #func); \
-    } if (!gles_##func) { \
-        gles_##func = dlsym(RTLD_DEFAULT, #func); \
-    }
-
-int proxy_width, proxy_height, proxy_intformat, maxTextureSize;
-
-void glBindFragDataLocationEXT(GLuint program, GLuint colorNumber, const char * name);
-
-void(*gles_glGetTexLevelParameteriv)(GLenum target, GLint level, GLenum pname, GLint *params);
-void(*gles_glShaderSource)(GLuint shader, GLsizei count, const GLchar * const *string, const GLint *length);
-void(*gles_glTexImage2D)(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *data);
-
-void glBindFragDataLocation(GLuint program, GLuint colorNumber, const char * name) {
-    glBindFragDataLocationEXT(program, colorNumber, name);
-}
-
-void glClearDepth(GLdouble depth) {
-    glClearDepthf(depth);
-}
-
-void *glMapBuffer(GLenum target, GLenum access) {
-    // Use: GL_EXT_map_buffer_range
-
-    GLenum access_range;
-    GLint length;
-
-    switch (target) {
-        // GL 4.2
-        case GL_ATOMIC_COUNTER_BUFFER:
-
-        // GL 4.3
-        case GL_DISPATCH_INDIRECT_BUFFER:
-        case GL_SHADER_STORAGE_BUFFER	:
-
-        // GL 4.4
-        case GL_QUERY_BUFFER:
-            printf("ERROR: glMapBuffer unsupported target=0x%x", target);
-            break; // not supported for now
-
-	     case GL_DRAW_INDIRECT_BUFFER:
-        case GL_TEXTURE_BUFFER:
-            printf("ERROR: glMapBuffer unimplemented target=0x%x", target);
-            break;
-    }
-
-    switch (access) {
-        case GL_READ_ONLY:
-            access_range = GL_MAP_READ_BIT;
-            break;
-
-        case GL_WRITE_ONLY:
-            access_range = GL_MAP_WRITE_BIT;
-            break;
-
-        case GL_READ_WRITE:
-            access_range = GL_MAP_READ_BIT | GL_MAP_WRITE_BIT;
-            break;
-    }
-
-    glGetBufferParameteriv(target, GL_BUFFER_SIZE, &length);
-    return glMapBufferRange(target, 0, length, access_range);
-}
-
-void glShaderSource(GLuint shader, GLsizei count, const GLchar * const *string, const GLint *length) {
-    LOOKUP_FUNC(glShaderSource)
-
-    // DBG(printf("glShaderSource(%d, %d, %p, %p)\n", shader, count, string, length);)
-    char *source = NULL;
-    char *converted;
-
-    // get the size of the shader sources and than concatenate in a single string
-    int l = 0;
-    for (int i=0; i<count; i++) l+=(length && length[i] >= 0)?length[i]:strlen(string[i]);
-    if (source) free(source);
-    source = calloc(1, l+1);
-    if(length) {
-        for (int i=0; i<count; i++) {
-            if(length[i] >= 0)
-                strncat(source, string[i], length[i]);
-            else
-                strcat(source, string[i]);
-        }
-    } else {
-        for (int i=0; i<count; i++)
-            strcat(source, string[i]);
-    }
-
-    char *source2 = strchr(source, '#');
-    if (!source2) {
-        source2 = source;
-    }
-    // are there #version?
-    if (!strncmp(source2, "#version ", 9)) {
-        converted = strdup(source2);
-        if (converted[9] == '1') {
-            if (converted[10] - '0' < 2) {
-                // 100, 110 -> 120
-                converted[10] = '2';
-            } else if (converted[10] - '0' < 6) {
-                // 130, 140, 150 -> 330
-                converted[9] = converted[10] = '3';
-            }
-        }
-        // remove "core", is it safe?
-        if (!strncmp(&converted[13], "core", 4)) {
-            strncpy(&converted[13], "\n//c", 4);
-        }
-    } else {
-        converted = calloc(1, strlen(source) + 13);
-        strcpy(converted, "#version 120\n");
-        strcpy(&converted[13], strdup(source));
-    }
-
-    int convertedLen = strlen(converted);
-
-#ifdef __APPLE__
-    // patch OptiFine 1.17.x
-    if (FindString(converted, "\nuniform mat4 textureMatrix = mat4(1.0);")) {
-        InplaceReplace(converted, &convertedLen, "\nuniform mat4 textureMatrix = mat4(1.0);", "\n#define textureMatrix mat4(1.0)");
-    }
-#endif
-
-    // some needed exts
-    const char* extensions =
-        "#extension GL_EXT_blend_func_extended : enable\n"
-        // For OptiFine (see patch above)
-        "#extension GL_EXT_shader_non_constant_global_initializers : enable\n";
-    converted = InplaceInsert(GetLine(converted, 1), extensions, converted, &convertedLen);
-
-    gles_glShaderSource(shader, 1, (const GLchar * const*)((converted)?(&converted):(&source)), NULL);
-
-    free(source);
-    free(converted);
-}
-
-int isProxyTexture(GLenum target) {
-    switch (target) {
-        case GL_PROXY_TEXTURE_1D:
-        case GL_PROXY_TEXTURE_2D:
-        case GL_PROXY_TEXTURE_3D:
-        case GL_PROXY_TEXTURE_RECTANGLE_ARB:
-            return 1;
-    }
-    return 0;
-}
-
-static int inline nlevel(int size, int level) {
-    if(size) {
-        size>>=level;
-        if(!size) size=1;
-    }
-    return size;
-}
-
-void glGetTexLevelParameteriv(GLenum target, GLint level, GLenum pname, GLint *params) {
-    LOOKUP_FUNC(glGetTexLevelParameteriv)
-    // NSLog("glGetTexLevelParameteriv(%x, %d, %x, %p)", target, level, pname, params);
-    if (isProxyTexture(target)) {
-        switch (pname) {
-            case GL_TEXTURE_WIDTH:
-                (*params) = nlevel(proxy_width,level);
-                break;
-            case GL_TEXTURE_HEIGHT: 
-                (*params) = nlevel(proxy_height,level);
-                break;
-            case GL_TEXTURE_INTERNAL_FORMAT:
-                (*params) = proxy_intformat;
-                break;
-        }
-    } else {
-        gles_glGetTexLevelParameteriv(target, level, pname, params);
-    }
-}
-
-void glTexImage2D(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *data) {
-    LOOKUP_FUNC(glTexImage2D)
-    if (isProxyTexture(target)) {
-        if (!maxTextureSize) {
-            glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxTextureSize);
-            // maxTextureSize = 16384;
-            // NSLog(@"Maximum texture size: %d", maxTextureSize);
-        }
-        proxy_width = ((width<<level)>maxTextureSize)?0:width;
-        proxy_height = ((height<<level)>maxTextureSize)?0:height;
-        proxy_intformat = internalformat;
-        // swizzle_internalformat((GLenum *) &internalformat, format, type);
-    } else {
-        gles_glTexImage2D(target, level, internalformat, width, height, border, format, type, data);
-    }
-}

app_pojavlauncher/src/main/jni/tinywrapper/string_utils.c

@@ -1,234 +0,0 @@
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "string_utils.h"
-
-const char* AllSeparators = " \t\n\r.,;()[]{}-<>+*/%&\\\"'^$=!:?";
-
-char* ResizeIfNeeded(char* pBuffer, int *size, int addsize);
-
-char* InplaceReplace(char* pBuffer, int* size, const char* S, const char* D)
-{
-    int lS = strlen(S), lD = strlen(D);
-    pBuffer = ResizeIfNeeded(pBuffer, size, (lD-lS)*CountString(pBuffer, S));
-    char* p = pBuffer;
-    while((p = strstr(p, S)))
-    {
-        // found an occurence of S
-        // check if good to replace, strchr also found '\0' :)
-        if(strchr(AllSeparators, p[lS])!=NULL && (p==pBuffer || strchr(AllSeparators, p[-1])!=NULL)) {
-            // move out rest of string
-            memmove(p+lD, p+lS, strlen(p)-lS+1);
-            // replace
-            memcpy(p, D, strlen(D));
-            // next
-            p+=lD;
-        } else p+=lS;
-    }
-    
-    return pBuffer;
-}
-
-char* InplaceInsert(char* pBuffer, const char* S, char* master, int* size)
-{
-    char* m = ResizeIfNeeded(master, size, strlen(S));
-    if(m!=master) {
-        pBuffer += (m-master);
-        master = m;
-    }
-    char* p = pBuffer;
-    int lS = strlen(S), ll = strlen(pBuffer);
-    memmove(p+lS, p, ll+1);
-    memcpy(p, S, lS);
-
-    return master;
-}
-
-char* GetLine(char* pBuffer, int num)
-{
-    char *p = pBuffer;
-    while(num-- && (p=strstr(p, "\n"))) p+=strlen("\n");
-    return (p)?p:pBuffer;
-}
-
-int CountLine(const char* pBuffer)
-{
-    int n=0;
-    const char* p = pBuffer;
-    while((p=strstr(p, "\n"))) {
-        p+=strlen("\n");
-        n++;
-    }
-    return n;
-}
-
-int GetLineFor(const char* pBuffer, const char* S)
-{
-    int n=0;
-    const char* p = pBuffer;
-    const char* end = FindString(pBuffer, S);
-    if(!end)
-        return 0;
-    while((p=strstr(p, "\n"))) {
-        p+=strlen("\n");
-        n++;
-        if(p>=end)
-            return n;
-    }
-    return n;
-}
-
-int CountString(const char* pBuffer, const char* S)
-{
-    const char* p = pBuffer;
-    int lS = strlen(S);
-    int n = 0;
-    while((p = strstr(p, S)))
-    {
-        // found an occurence of S
-        // check if good to count, strchr also found '\0' :)
-        if(strchr(AllSeparators, p[lS])!=NULL && (p==pBuffer || strchr(AllSeparators, p[-1])!=NULL))
-            n++;
-        p+=lS;
-    }
-    return n;
-}
-
-const char* FindString(const char* pBuffer, const char* S)
-{
-    const char* p = pBuffer;
-    int lS = strlen(S);
-    while((p = strstr(p, S)))
-    {
-        // found an occurence of S
-        // check if good to count, strchr also found '\0' :)
-        if(strchr(AllSeparators, p[lS])!=NULL && (p==pBuffer || strchr(AllSeparators, p[-1])!=NULL))
-            return p;
-        p+=lS;
-    }
-    return NULL;
-}
-
-char* FindStringNC(char* pBuffer, const char* S)
-{
-    char* p = pBuffer;
-    int lS = strlen(S);
-    while((p = strstr(p, S)))
-    {
-        // found an occurence of S
-        // check if good to count, strchr also found '\0' :)
-        if(strchr(AllSeparators, p[lS])!=NULL && (p==pBuffer || strchr(AllSeparators, p[-1])!=NULL))
-            return p;
-        p+=lS;
-    }
-    return NULL;
-}
-
-char* ResizeIfNeeded(char* pBuffer, int *size, int addsize) {
-    char* p = pBuffer;
-    int newsize = strlen(pBuffer)+addsize+1;
-    if (newsize>*size) {
-        newsize += 100;
-        p = (char*)realloc(pBuffer, newsize);
-        *size=newsize;
-    }
-    return p;
-}
-
-char* Append(char* pBuffer, int* size, const char* S) {
-    char* p =pBuffer;
-    p = ResizeIfNeeded(pBuffer, size, strlen(S));
-    strcat(p, S);
-    return p;
-}
-
-int isBlank(char c)  {
-    switch(c) {
-        case ' ':
-        case '\t':
-        case '\n':
-        case '\r':
-        case ':':
-        case ',':
-        case ';':
-        case '/':
-            return 1;
-        default:
-            return 0;
-    }
-}
-char* StrNext(char *pBuffer, const char* S) {
-    if(!pBuffer) return NULL;
-    char *p = strstr(pBuffer, S);
-    return (p)?p:(p+strlen(S));
-}
-
-char* NextStr(char* pBuffer) {
-    if(!pBuffer) return NULL;
-    while(isBlank(*pBuffer))
-        ++pBuffer;
-    return pBuffer;
-}
-
-char* NextBlank(char* pBuffer) {
-    if(!pBuffer) return NULL;
-    while(!isBlank(*pBuffer))
-        ++pBuffer;
-    return pBuffer;
-}
-
-char* NextLine(char* pBuffer) {
-    if(!pBuffer) return NULL;
-    while(*pBuffer && *pBuffer!='\n')
-        ++pBuffer;
-    return pBuffer;
-}
-
-const char* GetNextStr(char* pBuffer) {
-    static char buff[100] = {0};
-    buff[0] = '\0';
-    if(!pBuffer) return NULL;
-    char* p1 = NextStr(pBuffer);
-    if(!p1) return buff;
-    char* p2 = NextBlank(p1);
-    if(!p2) return buff;
-    int i=0;
-    while(p1!=p2 && i<99)
-        buff[i++] = *(p1++);
-    buff[i] = '\0';
-    return buff;
-}
-
-int CountStringSimple(char* pBuffer, const char* S)
-{
-    char* p = pBuffer;
-    int lS = strlen(S);
-    int n = 0;
-    while((p = strstr(p, S)))
-    {
-        // found an occurence of S
-        n++;
-        p+=lS;
-    }
-    return n;
-}
-
-char* InplaceReplaceSimple(char* pBuffer, int* size, const char* S, const char* D)
-{
-    int lS = strlen(S), lD = strlen(D);
-    pBuffer = ResizeIfNeeded(pBuffer, size, (lD-lS)*CountStringSimple(pBuffer, S));
-    char* p = pBuffer;
-    while((p = strstr(p, S)))
-    {
-        // found an occurence of S
-        // move out rest of string
-        memmove(p+lD, p+lS, strlen(p)-lS+1);
-        // replace
-        memcpy(p, D, strlen(D));
-        // next
-        p+=lD;
-    }
-    
-    return pBuffer;
-}

app_pojavlauncher/src/main/jni/tinywrapper/string_utils.h

@@ -1,29 +0,0 @@
-#ifndef _GL4ES_STRING_UTILS_H_
-#define _GL4ES_STRING_UTILS_H_
-
-extern const char* AllSeparators;
-
-const char* FindString(const char* pBuffer, const char* S);
-char* FindStringNC(char* pBuffer, const char* S);
-int CountString(const char* pBuffer, const char* S);
-char* ResizeIfNeeded(char* pBuffer, int *size, int addsize);
-char* InplaceReplace(char* pBuffer, int* size, const char* S, const char* D);
-char* Append(char* pBuffer, int* size, const char* S);
-char* InplaceInsert(char* pBuffer, const char* S, char* master, int* size);
-char* GetLine(char* pBuffer, int num);
-int CountLine(const char* pBuffer);
-int GetLineFor(const char* pBuffer, const char* S); // get the line number for 1st occurent of S in pBuffer
-char* StrNext(char *pBuffer, const char* S); // mostly as strstr, but go after the substring if found
-//"blank" (space, tab, cr, lf,":", ",", ";", ".", "/")
-char* NextStr(char* pBuffer);   // go to next non "blank"
-char* NextBlank(char* pBuffer);   // go to next "blank"
-char* NextLine(char* pBuffer);   // go to next new line (crlf not included)
-
-const char* GetNextStr(char* pBuffer); // get a (static) copy of next str (until next separator), can be a simple number or separator also
-
-// those function don't try to be smart with separators...
-int CountStringSimple(char* pBuffer, const char* S);
-char* InplaceReplaceSimple(char* pBuffer, int* size, const char* S, const char* D);
-
-
-#endif // _GL4ES_STRING_UTILS_H_

app_pojavlauncher/src/main/res/values/headings_array.xml

@@ -3,7 +3,7 @@
     <string-array name="renderer">
         <item name="1">@string/mcl_setting_renderer_gles2_4</item>
         <item name="2">@string/mcl_setting_renderer_vulkan_zink</item>
-        <item name="3">@string/mcl_setting_renderer_angle</item>
+        <item name="3">@string/mcl_setting_renderer_ltw</item>
     </string-array>
 
     <string-array name="menu_customcontrol">
@@ -36,7 +36,7 @@
     <string-array name="renderer_values">
         <item>opengles2</item> <!-- gl4es_extra 1.1.4 with OpenGL ES 2/"3" -->
         <item>vulkan_zink</item> <!-- virglrenderer with OpenGL ES 3 -->
-        <item>opengles3_desktopgl_angle_vulkan</item>
+        <item>opengles3_ltw</item>
     </string-array>
     <string-array name="download_source_names">
         <item>@string/global_default</item>

app_pojavlauncher/src/main/res/values/strings.xml

@@ -66,7 +66,7 @@
     <string name="mcl_setting_category_renderer">Renderer</string>
     <string name="mcl_setting_renderer_gles2_4">Holy GL4ES - (all versions, fast)</string>
     <string name="mcl_setting_renderer_vulkan_zink">Zink (Vulkan) - (all versions, mid)</string>
-    <string name="mcl_setting_renderer_angle">ANGLE (Vulkan) - (1.17+ only, mid)</string>
+    <string name="mcl_setting_renderer_ltw">LTW (OpenGL ES 3) - 1.17+ only</string>
     <string name="mcl_setting_veroption_release">Release</string>
     <string name="mcl_setting_veroption_snapshot">Snapshot</string>
     <string name="mcl_setting_veroption_oldalpha">Old-alpha</string>
@@ -418,6 +418,7 @@
     <string name="preference_remap_controller_title">Change controller key bindings</string>
     <string name="preference_remap_controller_description">Allows you to modify the keyboard keys bound to each controller button</string>
     <string name="mcl_button_discord">Discord</string>
+    <string name="ltw_render_distance_warning_msg">Your GPU is not capable of rendering above 7 render distance without Sodium or other similar mods. The render distance will be automatically reduced when you click "OK".</string>
     <string name="mcl_button_open_directory">Open game directory</string>
     <string name="discord_invite" translatable="false">https://discord.com/invite/aenk3EUvER</string>
     <string name="local_login_bad_username_title">Unsuitable username</string>