Fix Furnace UI With gui_blocks Disabled

VERSION

@@ -1 +1 @@
-2.0.8
+2.0.9

docs/CHANGELOG.md

@@ -1,5 +1,8 @@
 # Changelog
 
+**2.0.9**
+* Fix Translucent Preview Items In Furnace UI Being Fully Opaque When The ``gui_blocks`` Atlas Is Disabled
+
 **2.0.8**
 * Use Default Port In ``servers.txt`` If Not Specified
 

libreborn/include/libreborn/minecraft.h

@@ -411,6 +411,9 @@ static uint32_t TileEntity_id_property_offset = 0x18; // int32_t
 
 // ItemRenderer
 
+typedef float (*ItemRenderer_renderGuiItem_t)(unsigned char *font, unsigned char *textures, unsigned char *item_instance, float param_1, float param_2, bool param_3);
+static ItemRenderer_renderGuiItem_t ItemRenderer_renderGuiItem = (ItemRenderer_renderGuiItem_t) 0x63e58;
+
 typedef float (*ItemRenderer_renderGuiItemCorrect_t)(unsigned char *font, unsigned char *textures, unsigned char *item_instance, int32_t param_1, int32_t param_2);
 static ItemRenderer_renderGuiItemCorrect_t ItemRenderer_renderGuiItemCorrect = (ItemRenderer_renderGuiItemCorrect_t) 0x639a0;
 
@@ -422,6 +425,9 @@ static Tesselator_begin_t Tesselator_begin = (Tesselator_begin_t) 0x529d4;
 typedef void (*Tesselator_colorABGR_t)(unsigned char *tesselator, int32_t color);
 static Tesselator_colorABGR_t Tesselator_colorABGR = (Tesselator_colorABGR_t) 0x52b54;
 
+typedef void (*Tesselator_color_t)(unsigned char *tesselator, int32_t r, int32_t g, int32_t b, int32_t a);
+static Tesselator_color_t Tesselator_color = (Tesselator_color_t) 0x52a48;
+
 // Method That Require C++ Types
 #ifdef __cplusplus
 

mods/CMakeLists.txt

@@ -54,7 +54,10 @@ add_library(override SHARED src/override/override.c)
 target_link_libraries(override reborn dl home)
 
 add_library(textures SHARED src/textures/textures.cpp)
-target_link_libraries(textures reborn feature GLESv1_CM)
+target_link_libraries(textures reborn feature)
+
+add_library(atlas SHARED src/atlas/atlas.cpp)
+target_link_libraries(atlas reborn feature GLESv1_CM)
 
 add_library(chat SHARED src/chat/chat.cpp src/chat/ui.c)
 target_link_libraries(chat reborn pthread)
@@ -66,7 +69,7 @@ add_library(test SHARED src/test/test.c)
 target_link_libraries(test reborn home)
 
 add_library(init SHARED src/init/init.c)
-target_link_libraries(init compat game-mode camera input sign misc death options touch textures chat home version test)
+target_link_libraries(init compat game-mode camera input sign misc death options touch textures atlas chat home version test)
 if(MCPI_SERVER_MODE)
     target_link_libraries(init server)
 else()
@@ -74,7 +77,7 @@ else()
 endif()
 
 ## Install Mods
-install(TARGETS init compat readdir feature override game-mode camera input sign misc death options touch textures chat home version test DESTINATION "${MCPI_INSTALL_DIR}/mods")
+install(TARGETS init compat readdir feature override game-mode camera input sign misc death options touch textures atlas chat home version test DESTINATION "${MCPI_INSTALL_DIR}/mods")
 if(MCPI_SERVER_MODE)
     install(TARGETS server DESTINATION "${MCPI_INSTALL_DIR}/mods")
 else()

mods/src/atlas/README.md

@@ -0,0 +1,2 @@
+# ``atlas`` Mod
+This mod allows disabling the ``gui_blocks`` atlas.

mods/src/atlas/atlas.cpp

@@ -0,0 +1,117 @@
+#include <GLES/gl.h>
+
+#include <libreborn/libreborn.h>
+#include <libreborn/minecraft.h>
+
+#include "../feature/feature.h"
+#include "../init/init.h"
+
+// Fix Grass And Leaves Inventory Rendering When The gui_blocks Atlas Is Disabled
+static float ItemRenderer_renderGuiItemCorrect_injection(unsigned char *font, unsigned char *textures, unsigned char *item_instance, int32_t param_1, int32_t param_2) {
+    int32_t leaves_id = *(int32_t *) (*Tile_leaves + Tile_id_property_offset);
+    int32_t grass_id = *(int32_t *) (*Tile_grass + Tile_id_property_offset);
+    // Replace Rendered Item With Carried Variant
+    unsigned char *carried_item_instance = NULL;
+    if (item_instance != NULL) {
+        int32_t id = *(int32_t *) (item_instance + ItemInstance_id_property_offset);
+        int32_t count = *(int32_t *) (item_instance + ItemInstance_count_property_offset);
+        int32_t auxilary = *(int32_t *) (item_instance + ItemInstance_auxilary_property_offset);
+        if (id == leaves_id) {
+            carried_item_instance = (unsigned char *) ::operator new(ITEM_INSTANCE_SIZE);
+            ALLOC_CHECK(carried_item_instance);
+            (*ItemInstance_constructor_tile_extra)(carried_item_instance, *Tile_leaves_carried, count, auxilary);
+        } else if (id == grass_id) {
+            carried_item_instance = (unsigned char *) ::operator new(ITEM_INSTANCE_SIZE);
+            ALLOC_CHECK(carried_item_instance);
+            (*ItemInstance_constructor_tile_extra)(carried_item_instance, *Tile_grass_carried, count, auxilary);
+        }
+    }
+
+    // Fix Toolbar Rendering
+    GLboolean depth_test_was_enabled = glIsEnabled(GL_DEPTH_TEST);
+    glDisable(GL_DEPTH_TEST);
+
+    // Call Original Method
+    float ret = (*ItemRenderer_renderGuiItemCorrect)(font, textures, carried_item_instance != NULL ? carried_item_instance : item_instance, param_1, param_2);
+
+    // Revert GL State Changes
+    if (depth_test_was_enabled) {
+        glEnable(GL_DEPTH_TEST);
+    }
+
+    // Free Carried Item Instance Variant
+    if (carried_item_instance != NULL) {
+        ::operator delete(carried_item_instance);
+    }
+
+    // Return
+    return ret;
+}
+
+// Fix Translucent Preview Items In Furnace UI Being Fully Opaque When The gui_blocks Atlas Is Disabled
+static bool use_furnace_fix = false;
+#define FURNACE_ITEM_TRANSPARENCY 0x33
+static void Tesselator_colorABGR_injection(unsigned char *tesselator, int32_t color) {
+    // Fix Furnace UI
+    if (use_furnace_fix) {
+        // Force Translucent
+        int32_t a = FURNACE_ITEM_TRANSPARENCY;
+        int32_t b = (color & 0x00ff0000) >> 16;
+        int32_t g = (color & 0x0000ff00) >> 8;
+        int32_t r = (color & 0x000000ff) >> 0;
+        // New Color
+        color = r | (g << 8) | (b << 16) | (a << 24);
+    }
+
+    // Call Original Method
+    (*Tesselator_colorABGR)(tesselator, color);
+}
+static void Tesselator_begin_injection(unsigned char *tesselator, int32_t mode) {
+    // Call Original Method
+    (*Tesselator_begin)(tesselator, mode);
+
+    // Fix Furnace UI
+    if (use_furnace_fix) {
+        // Implict Translucent
+        (*Tesselator_colorABGR_injection)(tesselator, 0xffffffff);
+    }
+}
+static void Tesselator_color_injection(unsigned char *tesselator, int32_t r, int32_t g, int32_t b, int32_t a) {
+    // Fix Furnace UI
+    if (use_furnace_fix) {
+        // Force Translucent
+        a = FURNACE_ITEM_TRANSPARENCY;
+    }
+
+    // Call Original Method
+    (*Tesselator_color)(tesselator, r, g, b, a);
+}
+static float FurnaceScreen_render_ItemRenderer_renderGuiItem_injection(unsigned char *font, unsigned char *textures, unsigned char *item_instance, float param_1, float param_2, bool param_3) {
+    // Enable Furnace UI Fix
+    use_furnace_fix = true;
+
+    // Call Original Method
+    float ret = (*ItemRenderer_renderGuiItem)(font, textures, item_instance, param_1, param_2, param_3);
+
+    // Disable Furnace UI Fix
+    use_furnace_fix = false;
+
+    // Return
+    return ret;
+}
+
+// Init
+void init_atlas() {
+    // Disable The gui_blocks Atlas Which Contains Pre-Rendered Textures For Blocks In The Inventory
+    if (feature_has("Disable gui_blocks Atlas")) {
+        unsigned char disable_gui_blocks_atlas_patch[4] = {0x00, 0xf0, 0x20, 0xe3}; // "nop"
+        patch((void *) 0x63c2c, disable_gui_blocks_atlas_patch);
+        // Fix Grass And Leaves Inventory Rendering When The gui_blocks Atlas Is Disabled
+        overwrite_calls((void *) ItemRenderer_renderGuiItemCorrect, (void *) ItemRenderer_renderGuiItemCorrect_injection);
+        // Fix Furnace UI
+        overwrite_calls((void *) Tesselator_colorABGR, (void *) Tesselator_colorABGR_injection);
+        overwrite_calls((void *) Tesselator_begin, (void *) Tesselator_begin_injection);
+        overwrite_calls((void *) Tesselator_color, (void *) Tesselator_color_injection);
+        overwrite_call((void *) 0x32324, (void *) FurnaceScreen_render_ItemRenderer_renderGuiItem_injection);
+    }
+}

mods/src/init/init.c

@@ -17,6 +17,7 @@ __attribute__((constructor)) static void init() {
     init_options();
     init_touch();
     init_textures();
+    init_atlas();
     init_chat();
     init_home();
     init_version();

mods/src/init/init.h

@@ -20,6 +20,7 @@ void init_camera();
 void init_options();
 void init_touch();
 void init_textures();
+void init_atlas();
 void init_chat();
 void init_home();
 void init_version();

mods/src/textures/README.md

@@ -1,4 +1,2 @@
 # ``textures`` Mod
-This mod includes various features involving textures, including:
+This mod enables the animated water texture.
-- Animated Water
-- Disabling The ``gui_blocks`` Atlas

mods/src/textures/textures.cpp

@@ -1,12 +1,10 @@
-#include <GLES/gl.h>
-
 #include <libreborn/libreborn.h>
+#include <libreborn/minecraft.h>
 
 #include "../feature/feature.h"
 #include "../init/init.h"
 
-#include <libreborn/minecraft.h>
+// Animated Water
-
 static void Minecraft_tick_injection(unsigned char *minecraft, int32_t param_1, int32_t param_2) {
     // Call Original Method
     (*Minecraft_tick)(minecraft, param_1, param_2);
@@ -18,59 +16,10 @@ static void Minecraft_tick_injection(unsigned char *minecraft, int32_t param_1,
     }
 }
 
-// Fix Grass And Leaves Inventory Rendering When The gui_blocks Atlas Is Disabled
+// Init
-static float ItemRenderer_renderGuiItemCorrect_injection(unsigned char *font, unsigned char *textures, unsigned char *item_instance, int32_t param_1, int32_t param_2) {
-    int32_t leaves_id = *(int32_t *) (*Tile_leaves + Tile_id_property_offset);
-    int32_t grass_id = *(int32_t *) (*Tile_grass + Tile_id_property_offset);
-    // Replace Rendered Item With Carried Variant
-    unsigned char *carried_item_instance = NULL;
-    if (item_instance != NULL) {
-        int32_t id = *(int32_t *) (item_instance + ItemInstance_id_property_offset);
-        int32_t count = *(int32_t *) (item_instance + ItemInstance_count_property_offset);
-        int32_t auxilary = *(int32_t *) (item_instance + ItemInstance_auxilary_property_offset);
-        if (id == leaves_id) {
-            carried_item_instance = (unsigned char *) ::operator new(ITEM_INSTANCE_SIZE);
-            ALLOC_CHECK(carried_item_instance);
-            (*ItemInstance_constructor_tile_extra)(carried_item_instance, *Tile_leaves_carried, count, auxilary);
-        } else if (id == grass_id) {
-            carried_item_instance = (unsigned char *) ::operator new(ITEM_INSTANCE_SIZE);
-            ALLOC_CHECK(carried_item_instance);
-            (*ItemInstance_constructor_tile_extra)(carried_item_instance, *Tile_grass_carried, count, auxilary);
-        }
-    }
-
-    // Fix Toolbar Rendering
-    GLboolean depth_test_was_enabled = glIsEnabled(GL_DEPTH_TEST);
-    glDisable(GL_DEPTH_TEST);
-
-    // Call Original Method
-    float ret = (*ItemRenderer_renderGuiItemCorrect)(font, textures, carried_item_instance != NULL ? carried_item_instance : item_instance, param_1, param_2);
-
-    // Revert GL State Changes
-    if (depth_test_was_enabled) {
-        glEnable(GL_DEPTH_TEST);
-    }
-
-    // Free Carried Item Instance Variant
-    if (carried_item_instance != NULL) {
-        ::operator delete(carried_item_instance);
-    }
-
-    // Return
-    return ret;
-}
-
 void init_textures() {
+    // Tick Dynamic Textures (Animated Water)
     if (feature_has("Animated Water")) {
-        // Tick Dynamic Textures (Animated Water)
         overwrite_calls((void *) Minecraft_tick, (void *) Minecraft_tick_injection);
     }
-
-    if (feature_has("Disable gui_blocks Atlas")) {
-        // Disable gui_blocks Atlas Which Contains Pre-Rendered Textures For Blocks In The Inventory
-        unsigned char disable_gui_blocks_atlas_patch[4] = {0x00, 0xf0, 0x20, 0xe3}; // "nop"
-        patch((void *) 0x63c2c, disable_gui_blocks_atlas_patch);
-        // Fix Grass And Leaves Inventory Rendering When The gui_blocks Atlas Is Disabled
-        overwrite_calls((void *) ItemRenderer_renderGuiItemCorrect, (void *) ItemRenderer_renderGuiItemCorrect_injection);
-    }
 }