Add Improved Title Background

CMakeLists.txt

@@ -123,3 +123,8 @@ endif()
 if(BUILD_ARM_COMPONENTS)
     add_subdirectory(mods)
 endif()
+
+# Include Images
+if(BUILD_NATIVE_COMPONENTS)
+    add_subdirectory(images)
+endif()

images/CMakeLists.txt

@@ -0,0 +1,10 @@
+project(images)
+
+# Title Background
+if(NOT MCPI_SERVER_MODE)
+    install(
+        FILES "background.png"
+        DESTINATION "${MCPI_INSTALL_DIR}/data/images/gui"
+        RENAME "titleBG.png"
+    )
+endif()

launcher/data/client/lib/minecraft-pi-reborn-client/available-feature-flags

@@ -33,3 +33,4 @@ FALSE Disable V-Sync
 TRUE Fix Options Screen
 FALSE Force Touch Inventory
 TRUE Fix Pause Menu
+TRUE Improved Title Background

launcher/src/bootstrap.c

@@ -209,10 +209,23 @@ void bootstrap(int argc, char *argv[]) {
         // Set MCPI_EXECUTABLE_PATH
         set_and_print_env("MCPI_EXECUTABLE_PATH", resolved_path);
 
-        // Set MCPI_DIRECTORY
-        chop_last_component(&resolved_path);
-        set_and_print_env("MCPI_DIRECTORY", resolved_path);
-        free(resolved_path);
+        // Set MCPI_VANILLA_ASSETS_PATH
+        {
+            chop_last_component(&resolved_path);
+            string_append(&resolved_path, "/data");
+            set_and_print_env("MCPI_VANILLA_ASSETS_PATH", resolved_path);
+            free(resolved_path);
+        }
+    }
+
+    // Set MCPI_REBORN_ASSETS_PATH
+    {
+        char *assets_path = realpath("/proc/self/exe", NULL);
+        ALLOC_CHECK(assets_path);
+        chop_last_component(&assets_path);
+        string_append(&assets_path, "/data");
+        set_and_print_env("MCPI_REBORN_ASSETS_PATH", assets_path);
+        free(assets_path);
     }
 
     // Fix MCPI Dependencies

libreborn/include/libreborn/exec.h

@@ -26,9 +26,6 @@ char *get_binary_directory();
 // Safe execvpe() Relative To Binary
 __attribute__((noreturn)) void safe_execvpe_relative_to_binary(const char *const argv[], const char *const envp[]);
 
-// Get MCPI Directory
-char *get_mcpi_directory();
-
 // Run Command And Get Output
 char *run_command(const char *const command[], int *return_code);
 

libreborn/include/libreborn/string.h

@@ -19,7 +19,7 @@
 #define string_append(str, format, ...) \
     { \
         char *old = *str; \
-        safe_asprintf(str, "%s" format, *str == NULL ? "" : *str, __VA_ARGS__); \
+        safe_asprintf(str, "%s" format, *str == NULL ? "" : *str, ##__VA_ARGS__); \
         ALLOC_CHECK(*str); \
         if (old != NULL && old != *str) { \
             free(old); \

libreborn/src/util/exec.c

@@ -57,11 +57,6 @@ __attribute__((noreturn)) void safe_execvpe_relative_to_binary(const char *const
     safe_execvpe(new_argv, envp);
 }
 
-// Get MCPI Directory
-char *get_mcpi_directory() {
-    return getenv("MCPI_DIRECTORY");
-}
-
 // Run Command And Get Output
 char *run_command(const char *const command[], int *return_code) {
     // Store Output

mods/src/home/home.c

@@ -26,11 +26,8 @@ void init_home() {
     // Store Data In ~/.minecraft-pi Instead Of ~/.minecraft
     patch_address((void *) default_path, (void *) HOME_SUBDIRECTORY_FOR_GAME_DATA);
 
-    // Change Directory To Binary Directory Manually
+    // The override code resolves assets manually,
+    // making changing directory redundant.
     unsigned char nop_patch[4] = {0x00, 0xf0, 0x20, 0xe3}; // "nop"
     patch((void *) 0xe0ac, nop_patch);
-    char *binary_directory = get_mcpi_directory();
-    if (chdir(binary_directory) != 0) {
-        ERR("Unable To Change Directory: %s", strerror(errno));
-    }
 }

mods/src/misc/misc.cpp

@@ -70,6 +70,15 @@ static void PauseScreen_init_injection(unsigned char *screen) {
     }
 }
 
+// Improved Title Background
+static void StartMenuScreen_render_Screen_renderBackground_injection(unsigned char *screen) {
+    // Draw
+    unsigned char *minecraft = *(unsigned char **) (screen + Screen_minecraft_property_offset);
+    unsigned char *textures = *(unsigned char **) (minecraft + Minecraft_textures_property_offset);
+    (*Textures_loadAndBindTexture)(textures, "gui/titleBG.png");
+    (*GuiComponent_blit)(screen, 0, 0, 0, 0, *(int32_t *) (screen + Screen_width_property_offset), *(int32_t *) (screen + Screen_height_property_offset), 0x100, 0x100);
+}
+
 // Init
 void _init_misc_cpp() {
     // Implement AppPlatform::readAssetFile So Translations Work
@@ -85,4 +94,14 @@ void _init_misc_cpp() {
         // Add Missing Buttons To Pause Menu
         patch_address(PauseScreen_init_vtable_addr, (void *) PauseScreen_init_injection);
     }
+
+    // Improved Title Background
+    if (feature_has("Improved Title Background", server_disabled)) {
+        // Switch Background
+        overwrite_call((void *) 0x39528, (void *) StartMenuScreen_render_Screen_renderBackground_injection);
+        overwrite_call((void *) 0x3dee0, (void *) StartMenuScreen_render_Screen_renderBackground_injection);
+        // Text Color
+        patch_address((void *) 0x397ac, (void *) 0xffffffff);
+        patch_address((void *) 0x3e10c, (void *) 0xffffffff);
+    }
 }

mods/src/options/options.c

@@ -50,13 +50,6 @@ static void Options_initDefaultValue_injection(unsigned char *options) {
     // Call Original Method
     (*Options_initDefaultValue)(options);
 
-    // Enable Crosshair In Touch GUI
-    *(options + Options_split_controls_property_offset) = 1;
-    // 3D Anaglyph
-    *(options + Options_3d_anaglyph_property_offset) = anaglyph;
-    // Render Distance
-    *(int32_t *) (options + Options_render_distance_property_offset) = render_distance;
-
     // Default Graphics Settings
     *(options + Options_fancy_graphics_property_offset) = 1;
     *(options + Options_ambient_occlusion_property_offset) = 1;
@@ -64,6 +57,18 @@ static void Options_initDefaultValue_injection(unsigned char *options) {
     // Store
     stored_options = options;
 }
+static void Minecraft_init_injection(unsigned char *minecraft) {
+    // Call Original Method
+    (*Minecraft_init)(minecraft);
+
+    unsigned char *options = minecraft + Minecraft_options_property_offset;
+    // Enable Crosshair In Touch GUI
+    *(options + Options_split_controls_property_offset) = 1;
+    // 3D Anaglyph
+    *(options + Options_3d_anaglyph_property_offset) = anaglyph;
+    // Render Distance
+    *(int32_t *) (options + Options_render_distance_property_offset) = render_distance;
+}
 
 // Smooth Lighting
 static void TileRenderer_tesselateBlockInWorld_injection(unsigned char *tile_renderer, unsigned char *tile, int32_t x, int32_t y, int32_t z) {
@@ -93,6 +98,7 @@ void init_options() {
 
     // Set Options
     overwrite_calls((void *) Options_initDefaultValue, (void *) Options_initDefaultValue_injection);
+    overwrite_calls((void *) Minecraft_init, (void *) Minecraft_init_injection);
 
     // Change Username
     const char *username = get_username();

mods/src/override/override.c

@@ -8,8 +8,23 @@
 
 #include <libreborn/libreborn.h>
 
+#include "override.h"
 #include "../home/home.h"
 
+// Hook access
+HOOK(access, int, (const char *pathname, int mode)) {
+    char *new_path = override_get_path(pathname);
+    // Open File
+    ensure_access();
+    int ret = (*real_access)(new_path != NULL ? new_path : pathname, mode);
+    // Free Data
+    if (new_path != NULL) {
+        free(new_path);
+    }
+    // Return
+    return ret;
+}
+
 // Get Override Path For File (If It Exists)
 char *override_get_path(const char *filename) {
     // Get MCPI Home Path
@@ -18,43 +33,45 @@ char *override_get_path(const char *filename) {
     char *overrides = NULL;
     safe_asprintf(&overrides, "%s/overrides", home_path);
 
-    // Get Data Path
-    char *data = NULL;
-    char *binary_directory = get_mcpi_directory();
-    safe_asprintf(&data, "%s/data", binary_directory);
-    int data_length = strlen(data);
+    // Data Prefiix
+    char *data_prefix = "data/";
+    int data_prefix_length = strlen(data_prefix);
 
-    // Get Full Path
-    char *full_path;
-    if (strlen(filename) > 0 && filename[0] == '/') {
-        // Absolute Path
-        full_path = strdup(filename);
-    } else {
-        // Relative Path
-        full_path = realpath(filename, NULL);
-    }
+    // Folders To Check
+    char *asset_folders[] = {
+        overrides,
+        getenv("MCPI_REBORN_ASSETS_PATH"),
+        getenv("MCPI_VANILLA_ASSETS_PATH"),
+        NULL
+    };
 
     // Check For Override
     char *new_path = NULL;
-    if (full_path != NULL) {
-        if (starts_with(full_path, data)) {
-            safe_asprintf(&new_path, "%s%s", overrides, &full_path[data_length]);
-            if (access(new_path, F_OK) == -1) {
+    if (starts_with(filename, data_prefix)) {
+        // Test Asset Folders
+        for (int i = 0; asset_folders[i] != NULL; i++) {
+            safe_asprintf(&new_path, "%s/%s", asset_folders[i], &filename[data_prefix_length]);
+            ensure_access();
+            if ((*real_access)(new_path, F_OK) == -1) {
+                // Not Found In Asset Folder
                 free(new_path);
                 new_path = NULL;
+                continue;
+            } else {
+                // Found
+                break;
             }
         }
-        free(full_path);
     }
 
-    // Free Variables
+    // Free
     free(overrides);
-    free(data);
 
     // Return
     return new_path;
 }
 
+// Hook fopen
 HOOK(fopen, FILE *, (const char *filename, const char *mode)) {
     char *new_path = override_get_path(filename);
     // Open File
@@ -68,6 +85,7 @@ HOOK(fopen, FILE *, (const char *filename, const char *mode)) {
     return file;
 }
 
+// Hook fopen64
 HOOK(fopen64, FILE *, (const char *filename, const char *mode)) {
     char *new_path = override_get_path(filename);
     // Open File

mods/src/sound/sound.cpp

@@ -22,31 +22,29 @@ std::string _sound_get_source_file() {
     } else {
         // Resolve
 
-        // Get Binary Directory
-        char *binary_directory = get_mcpi_directory();
-        // Get Full Path
-        char *full_path = NULL;
-        safe_asprintf(&full_path, "%s/" SOURCE_FILE_BASE, binary_directory);
+        // Get Path
+        char *path = strdup(SOURCE_FILE_BASE);
+        ALLOC_CHECK(path);
 
         // Handle Overrides
-        char *overridden_full_path = override_get_path(full_path);
+        char *overridden_full_path = override_get_path(path);
         if (overridden_full_path != NULL) {
-            free(full_path);
-            full_path = overridden_full_path;
+            free(path);
+            path = overridden_full_path;
         }
 
         // Check If Sound Exists
-        if (access(full_path, F_OK) == -1) {
+        if (access(path, F_OK) == -1) {
             // Fail
             WARN("Audio Source File Doesn't Exist: " SOURCE_FILE_BASE);
             source.assign("");
         } else {
             // Set
-            source.assign(full_path);
+            source.assign(path);
         }
 
         // Free
-        free(full_path);
+        free(path);
 
         // Mark As Loaded
         source_loaded = true;

symbols/include/symbols/minecraft.h

@@ -467,6 +467,11 @@ static uint32_t FurnaceScreen_tile_entity_property_offset = 0x1d0; // FurnaceTil
 typedef ItemInstance *(*FurnaceTileEntity_getItem_t)(unsigned char *furnace_tile_entity, int32_t slot);
 static uint32_t FurnaceTileEntity_getItem_vtable_offset = 0x2c;
 
+// GuiComponent
+
+typedef void (*GuiComponent_blit_t)(unsigned char *component, int32_t param_1, int32_t param_2, int32_t param_3, int32_t param_4, int32_t param_5, int32_t param_6, int32_t param_7, int32_t param_8);
+static GuiComponent_blit_t GuiComponent_blit = (GuiComponent_blit_t) 0x282a4;
+
 // Screen
 
 typedef void (*Screen_updateEvents_t)(unsigned char *screen);
@@ -482,11 +487,15 @@ typedef void (*Screen_init_t)(unsigned char *screen);
 
 typedef void (*Screen_tick_t)(unsigned char *screen);
 
+typedef void (*Screen_render_t)(unsigned char *screen, int32_t param_1, int32_t param_2, float param_3);
+
 typedef int32_t (*Screen_handleBackEvent_t)(unsigned char *screen, bool param_1);
 
 static uint32_t Screen_minecraft_property_offset = 0x14; // Minecraft *
 static uint32_t Screen_rendered_buttons_property_offset = 0x18; // std::vector<Button *>
 static uint32_t Screen_selectable_buttons_property_offset = 0x30; // std::vector<Button *>
+static uint32_t Screen_width_property_offset = 0x8; // int32_t
+static uint32_t Screen_height_property_offset = 0xc; // int32_t
 
 // StartMenuScreen
 
@@ -809,6 +818,11 @@ static uint32_t OptionsFile_options_txt_path_property_offset = 0x0; // std::stri
 typedef void (*OptionsPane_unknown_toggle_creating_function_t)(unsigned char *options_pane, unsigned char *unknown_object, std::string const& name, unsigned char *option);
 static OptionsPane_unknown_toggle_creating_function_t OptionsPane_unknown_toggle_creating_function = (OptionsPane_unknown_toggle_creating_function_t) 0x24470;
 
+// Textures
+
+typedef void (*Textures_loadAndBindTexture_t)(unsigned char *textures, std::string const& name);
+static Textures_loadAndBindTexture_t Textures_loadAndBindTexture = (Textures_loadAndBindTexture_t) 0x539cc;
+
 #endif
 
 #pragma GCC diagnostic pop