diff --git a/.gitmodules b/.gitmodules
index 07d1d4ef..fb859c87 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -102,3 +102,6 @@
 [submodule "externals/LibAtrac9"]
 	path = externals/LibAtrac9
 	url = https://github.com/shadps4-emu/ext-LibAtrac9.git
+[submodule "externals/libpng"]
+	path = externals/libpng
+	url = https://github.com/pnggroup/libpng
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e135794e..a967c540 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -830,7 +830,7 @@ endif()
 
 create_target_directory_groups(shadps4)
 
-target_link_libraries(shadps4 PRIVATE magic_enum::magic_enum fmt::fmt toml11::toml11 tsl::robin_map xbyak::xbyak Tracy::TracyClient RenderDoc::API FFmpeg::ffmpeg Dear_ImGui gcn half::half)
+target_link_libraries(shadps4 PRIVATE magic_enum::magic_enum fmt::fmt toml11::toml11 tsl::robin_map xbyak::xbyak Tracy::TracyClient RenderDoc::API FFmpeg::ffmpeg Dear_ImGui gcn half::half zlib-ng::zlib png_static)
 target_link_libraries(shadps4 PRIVATE Boost::headers GPUOpen::VulkanMemoryAllocator LibAtrac9 sirit Vulkan::Headers xxHash::xxhash Zydis::Zydis glslang::SPIRV glslang::glslang SDL3::SDL3 pugixml::pugixml)
 
 target_compile_definitions(shadps4 PRIVATE IMGUI_USER_CONFIG="imgui/imgui_config.h")
@@ -860,9 +860,9 @@ if (NOT ENABLE_QT_GUI)
 endif()
 
 if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND MSVC)
-    target_link_libraries(shadps4 PRIVATE cryptoppwin zlib-ng::zlib)
+    target_link_libraries(shadps4 PRIVATE cryptoppwin)
 else()
-    target_link_libraries(shadps4 PRIVATE cryptopp::cryptopp zlib-ng::zlib)
+    target_link_libraries(shadps4 PRIVATE cryptopp::cryptopp)
 endif()
 
 if (ENABLE_QT_GUI)
diff --git a/externals/CMakeLists.txt b/externals/CMakeLists.txt
index 17d71087..8d080acc 100644
--- a/externals/CMakeLists.txt
+++ b/externals/CMakeLists.txt
@@ -58,8 +58,10 @@ if (NOT TARGET zlib-ng::zlib)
     set(WITH_GTEST OFF)
     set(WITH_NEW_STRATEGIES ON)
     set(WITH_NATIVE_INSTRUCTIONS ON)
+    set(ZLIB_COMPAT ON CACHE BOOL "" FORCE)
     add_subdirectory(zlib-ng)
     add_library(zlib-ng::zlib ALIAS zlib)
+    add_library(ZLIB::ZLIB ALIAS zlib)
 endif()
 
 # SDL3
@@ -153,6 +155,17 @@ if (NOT TARGET half::half)
     add_library(half::half ALIAS half)
 endif()
 
+# libpng
+set(PNG_SHARED OFF CACHE BOOL "" FORCE)
+set(PNG_STATIC ON CACHE BOOL "" FORCE)
+set(PNG_TESTS OFF CACHE BOOL "" FORCE) 
+set(PNG_TOOLS OFF CACHE BOOL "" FORCE) 
+set(SKIP_INSTALL_ALL OFF CACHE BOOL "" FORCE)
+set(ZLIB_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/zlib-ng" CACHE STRING "" FORCE)
+set(ZLIB_LIBRARY "${CMAKE_CURRENT_BINARY_DIR}/zlib-ng/zlibstatic-ngd" CACHE STRING "" FORCE)
+file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/libpng/zlib.h" "#include \"../zlib-ng/zlib.h\"")
+add_subdirectory(libpng)
+
 if (APPLE)
     # date
     if (NOT TARGET date::date-tz)
diff --git a/externals/libpng b/externals/libpng
new file mode 160000
index 00000000..c1cc0f3f
--- /dev/null
+++ b/externals/libpng
@@ -0,0 +1 @@
+Subproject commit c1cc0f3f4c3d4abd11ca68c59446a29ff6f95003
diff --git a/src/core/file_format/pkg.cpp b/src/core/file_format/pkg.cpp
index 0ae9f57e..a6b5eb9a 100644
--- a/src/core/file_format/pkg.cpp
+++ b/src/core/file_format/pkg.cpp
@@ -1,31 +1,30 @@
 // SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include <zlib-ng.h>
+#include <zlib.h>
 #include "common/io_file.h"
 #include "common/logging/formatter.h"
 #include "core/file_format/pkg.h"
 #include "core/file_format/pkg_type.h"
 
-static void DecompressPFSC(std::span<const char> compressed_data,
-                           std::span<char> decompressed_data) {
-    zng_stream decompressStream;
+static void DecompressPFSC(std::span<char> compressed_data, std::span<char> decompressed_data) {
+    z_stream decompressStream;
     decompressStream.zalloc = Z_NULL;
     decompressStream.zfree = Z_NULL;
     decompressStream.opaque = Z_NULL;
 
-    if (zng_inflateInit(&decompressStream) != Z_OK) {
+    if (inflateInit(&decompressStream) != Z_OK) {
         // std::cerr << "Error initializing zlib for deflation." << std::endl;
     }
 
     decompressStream.avail_in = compressed_data.size();
-    decompressStream.next_in = reinterpret_cast<const Bytef*>(compressed_data.data());
+    decompressStream.next_in = reinterpret_cast<unsigned char*>(compressed_data.data());
     decompressStream.avail_out = decompressed_data.size();
-    decompressStream.next_out = reinterpret_cast<Bytef*>(decompressed_data.data());
+    decompressStream.next_out = reinterpret_cast<unsigned char*>(decompressed_data.data());
 
-    if (zng_inflate(&decompressStream, Z_FINISH)) {
+    if (inflate(&decompressStream, Z_FINISH)) {
     }
-    if (zng_inflateEnd(&decompressStream) != Z_OK) {
+    if (inflateEnd(&decompressStream) != Z_OK) {
         // std::cerr << "Error ending zlib inflate" << std::endl;
     }
 }
diff --git a/src/core/libraries/error_codes.h b/src/core/libraries/error_codes.h
index 6bbdc308..280ddf1c 100644
--- a/src/core/libraries/error_codes.h
+++ b/src/core/libraries/error_codes.h
@@ -593,7 +593,6 @@ constexpr int ORBIS_VIDEODEC2_ERROR_INVALID_SEQUENCE = 0x811D0303;
 constexpr int ORBIS_VIDEODEC2_ERROR_FATAL_STREAM = 0x811D0304;
 
 // Videodec library
-
 constexpr int ORBIS_VIDEODEC_ERROR_API_FAIL = 0x80C10000;
 constexpr int ORBIS_VIDEODEC_ERROR_CODEC_TYPE = 0x80C10001;
 constexpr int ORBIS_VIDEODEC_ERROR_STRUCT_SIZE = 0x80C10002;
@@ -616,3 +615,14 @@ constexpr int ORBIS_VIDEODEC_ERROR_MISMATCH_SPEC = 0x80C10012;
 constexpr int ORBIS_VIDEODEC_ERROR_INVALID_SEQUENCE = 0x80C10013;
 constexpr int ORBIS_VIDEODEC_ERROR_FATAL_STREAM = 0x80C10014;
 constexpr int ORBIS_VIDEODEC_ERROR_FATAL_STATE = 0x80C10015;
+
+// PngDec library
+constexpr int ORBIS_PNG_DEC_ERROR_INVALID_ADDR = 0x80690001;
+constexpr int ORBIS_PNG_DEC_ERROR_INVALID_SIZE = 0x80690002;
+constexpr int ORBIS_PNG_DEC_ERROR_INVALID_PARAM = 0x80690003;
+constexpr int ORBIS_PNG_DEC_ERROR_INVALID_HANDLE = 0x80690004;
+constexpr int ORBIS_PNG_DEC_ERROR_INVALID_WORK_MEMORY = 0x80690005;
+constexpr int ORBIS_PNG_DEC_ERROR_INVALID_DATA = 0x80690010;
+constexpr int ORBIS_PNG_DEC_ERROR_UNSUPPORT_DATA = 0x80690011;
+constexpr int ORBIS_PNG_DEC_ERROR_DECODE_ERROR = 0x80690012;
+constexpr int ORBIS_PNG_DEC_ERROR_FATAL = 0x80690020;
\ No newline at end of file
diff --git a/src/core/libraries/libpng/pngdec.cpp b/src/core/libraries/libpng/pngdec.cpp
index 3a5d1ba7..fb9fae4d 100644
--- a/src/core/libraries/libpng/pngdec.cpp
+++ b/src/core/libraries/libpng/pngdec.cpp
@@ -1,55 +1,47 @@
 // SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#include <png.h>
+#include "common/assert.h"
 #include "common/logging/log.h"
 #include "core/libraries/error_codes.h"
 #include "core/libraries/libs.h"
-#include "externals/stb_image.h"
 #include "pngdec.h"
 
 namespace Libraries::PngDec {
 
-void setImageInfoParams(OrbisPngDecImageInfo* imageInfo, int width, int height, int channels,
-                        bool isInterlaced, bool isTransparent) {
-    if (imageInfo != nullptr) {
-        imageInfo->imageWidth = width;
-        imageInfo->imageHeight = height;
-        imageInfo->bitDepth = 8; // always 8?
-        switch (channels) {      // clut missing
-        case 1:
-            imageInfo->colorSpace = OrbisPngDecColorSpace::ORBIS_PNG_DEC_COLOR_SPACE_GRAYSCALE;
-            break;
-        case 2:
-            imageInfo->colorSpace =
-                OrbisPngDecColorSpace::ORBIS_PNG_DEC_COLOR_SPACE_GRAYSCALE_ALPHA;
-            break;
-        case 3:
-            imageInfo->colorSpace = OrbisPngDecColorSpace::ORBIS_PNG_DEC_COLOR_SPACE_RGB;
-            break;
-        case 4:
-            imageInfo->colorSpace = OrbisPngDecColorSpace::ORBIS_PNG_DEC_COLOR_SPACE_RGBA;
-            break;
-        default:
-            imageInfo->colorSpace = OrbisPngDecColorSpace::ORBIS_PNG_DEC_COLOR_SPACE_RGB;
-            break;
-        }
-        imageInfo->imageFlag = 0;
-        if (isInterlaced) {
-            imageInfo->imageFlag |= ORBIS_PNG_DEC_IMAGE_FLAG_ADAM7_INTERLACE;
-        }
-        if (isTransparent) {
-            imageInfo->imageFlag |= ORBIS_PNG_DEC_IMAGE_FLAG_TRNS_CHUNK_EXIST;
-        }
+struct PngHandler {
+    png_structp png_ptr;
+    png_infop info_ptr;
+};
+
+static inline OrbisPngDecColorSpace MapPngColor(int color) {
+    switch (color) {
+    case PNG_COLOR_TYPE_GRAY:
+        return OrbisPngDecColorSpace::ORBIS_PNG_DEC_COLOR_SPACE_GRAYSCALE;
+
+    case PNG_COLOR_TYPE_GRAY_ALPHA:
+        return OrbisPngDecColorSpace::ORBIS_PNG_DEC_COLOR_SPACE_GRAYSCALE_ALPHA;
+
+    case PNG_COLOR_TYPE_PALETTE:
+        return OrbisPngDecColorSpace::ORBIS_PNG_DEC_COLOR_SPACE_CLUT;
+
+    case PNG_COLOR_TYPE_RGB:
+        return OrbisPngDecColorSpace::ORBIS_PNG_DEC_COLOR_SPACE_RGB;
+
+    case PNG_COLOR_TYPE_RGB_ALPHA:
+        return OrbisPngDecColorSpace::ORBIS_PNG_DEC_COLOR_SPACE_RGBA;
     }
+
+    UNREACHABLE_MSG("unknown png color type");
 }
 
-bool checktRNS(const u8* png_raw, int size) {
-    for (int i = 30; i < size - 4; i += 4) {
-        if (std::memcmp(png_raw + i, "tRNS", 4) == 0) {
-            return true;
-        }
-    }
-    return false;
+void PngDecError(png_structp png_ptr, png_const_charp error_message) {
+    LOG_ERROR(Lib_Png, "PNG error {}", error_message);
+}
+
+void PngDecWarning(png_structp png_ptr, png_const_charp error_message) {
+    LOG_ERROR(Lib_Png, "PNG warning {}", error_message);
 }
 
 s32 PS4_SYSV_ABI scePngDecCreate(const OrbisPngDecCreateParam* param, void* memoryAddress,
@@ -66,11 +58,21 @@ s32 PS4_SYSV_ABI scePngDecCreate(const OrbisPngDecCreateParam* param, void* memo
         LOG_ERROR(Lib_Png, "Invalid size! width = {}", param->maxImageWidth);
         return ORBIS_PNG_DEC_ERROR_INVALID_SIZE;
     }
-    const OrbisPngDecCreateParam* nextParam = param + 1;
-    int ret = (8 << (reinterpret_cast<uintptr_t>(nextParam) & 0x1f)) *
-                  (param->maxImageWidth + 0x47U & 0xfffffff8) +
-              0xd000;
-    *handle = reinterpret_cast<OrbisPngDecHandle>(ret);
+    auto pngh = (PngHandler*)memoryAddress;
+
+    pngh->png_ptr =
+        png_create_read_struct(PNG_LIBPNG_VER_STRING, nullptr, PngDecError, PngDecWarning);
+
+    if (pngh->png_ptr == nullptr)
+        return ORBIS_PNG_DEC_ERROR_FATAL;
+
+    pngh->info_ptr = png_create_info_struct(pngh->png_ptr);
+    if (pngh->info_ptr == nullptr) {
+        png_destroy_read_struct(&pngh->png_ptr, nullptr, nullptr);
+        return false;
+    }
+
+    *handle = pngh;
     return ORBIS_OK;
 }
 
@@ -88,22 +90,91 @@ s32 PS4_SYSV_ABI scePngDecDecode(OrbisPngDecHandle handle, const OrbisPngDecDeco
         LOG_ERROR(Lib_Png, "invalid image address!");
         return ORBIS_PNG_DEC_ERROR_INVALID_ADDR;
     }
+    LOG_TRACE(Lib_Png,
+              "pngMemSize = {} , imageMemSize = {} , pixelFormat = {} , alphaValue = {} , "
+              "imagePitch = {}",
+              param->pngMemSize, param->imageMemSize, param->pixelFormat, param->alphaValue,
+              param->imagePitch);
 
-    int width, height, channels;
-    const u8* png_raw = (const u8*)param->pngMemAddr;
-    u8* img = stbi_load_from_memory(png_raw, param->pngMemSize, &width, &height, &channels,
-                                    STBI_rgb_alpha); // STBI_rgb_alpha?
-    if (!img) {
-        LOG_ERROR(Lib_Png, "Decoding failed!");
-        return ORBIS_PNG_DEC_ERROR_DECODE_ERROR;
+    auto pngh = (PngHandler*)handle;
+
+    struct pngstruct {
+        const u8* data;
+        size_t size;
+        u64 offset;
+    } pngdata = {
+        .data = (const u8*)param->pngMemAddr,
+        .size = param->pngMemSize,
+        .offset = 0,
+    };
+
+    // Read png from memory
+    png_set_read_fn(pngh->png_ptr, (void*)&pngdata,
+                    [](png_structp ps, png_bytep data, png_size_t len) {
+                        if (len == 0)
+                            return;
+                        auto pngdata = (pngstruct*)png_get_io_ptr(ps);
+                        ::memcpy(data, pngdata->data + pngdata->offset, len);
+                        pngdata->offset += len;
+                    });
+
+    u32 width, height;
+    int color_type, bit_depth;
+    png_read_info(pngh->png_ptr, pngh->info_ptr);
+
+    width = png_get_image_width(pngh->png_ptr, pngh->info_ptr);
+    height = png_get_image_height(pngh->png_ptr, pngh->info_ptr);
+    color_type = MapPngColor(png_get_color_type(pngh->png_ptr, pngh->info_ptr));
+    bit_depth = png_get_bit_depth(pngh->png_ptr, pngh->info_ptr);
+
+    if (imageInfo != nullptr) {
+        imageInfo->bitDepth = bit_depth;
+        imageInfo->imageWidth = width;
+        imageInfo->imageHeight = height;
+        imageInfo->colorSpace = color_type;
+        imageInfo->imageFlag = 0;
+        if (png_get_interlace_type(pngh->png_ptr, pngh->info_ptr) == 1) {
+            imageInfo->imageFlag |= OrbisPngDecImageFlag::ORBIS_PNG_DEC_IMAGE_FLAG_ADAM7_INTERLACE;
+        }
+        if (png_get_valid(pngh->png_ptr, pngh->info_ptr, PNG_INFO_tRNS)) {
+
+            imageInfo->imageFlag |= ORBIS_PNG_DEC_IMAGE_FLAG_TRNS_CHUNK_EXIST;
+        }
     }
-    bool isInterlaced = (png_raw[28] == 1);
-    bool isTransparent = checktRNS(png_raw, param->pngMemSize);
-    setImageInfoParams(imageInfo, width, height, channels, isInterlaced, isTransparent);
-    u8* imageBuffer = (u8*)(param->imageMemAddr);
-    memcpy(imageBuffer, img, width * height * 4); // copy/pass decoded data
-    stbi_image_free(img);
-    return 0;
+
+    if (bit_depth == 16)
+        png_set_strip_16(pngh->png_ptr);
+    if (color_type == PNG_COLOR_TYPE_PALETTE)
+        png_set_palette_to_rgb(pngh->png_ptr);
+    if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
+        png_set_expand_gray_1_2_4_to_8(pngh->png_ptr);
+    if (png_get_valid(pngh->png_ptr, pngh->info_ptr, PNG_INFO_tRNS))
+        png_set_tRNS_to_alpha(pngh->png_ptr);
+    if (color_type == PNG_COLOR_TYPE_GRAY || color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
+        png_set_gray_to_rgb(pngh->png_ptr);
+    if (param->pixelFormat == OrbisPngDecPixelFormat::ORBIS_PNG_DEC_PIXEL_FORMAT_B8G8R8A8)
+        png_set_bgr(pngh->png_ptr);
+    if (color_type == PNG_COLOR_TYPE_RGB || color_type == PNG_COLOR_TYPE_GRAY ||
+        color_type == PNG_COLOR_TYPE_PALETTE)
+        png_set_add_alpha(pngh->png_ptr, param->alphaValue, PNG_FILLER_AFTER);
+
+    int pass = png_set_interlace_handling(pngh->png_ptr);
+    png_read_update_info(pngh->png_ptr, pngh->info_ptr);
+
+    auto const numChannels = png_get_channels(pngh->png_ptr, pngh->info_ptr);
+    auto horizontal_bytes = numChannels * width;
+
+    int stride = param->imagePitch > 0 ? param->imagePitch : horizontal_bytes;
+
+    for (int j = 0; j < pass; j++) { // interlaced
+        auto ptr = (png_bytep)param->imageMemAddr;
+        for (int y = 0; y < height; y++) {
+            png_read_row(pngh->png_ptr, ptr, nullptr);
+            ptr += stride;
+        }
+    }
+
+    return (width > 32767 || height > 32767) ? 0 : (width << 16) | height;
 }
 
 s32 PS4_SYSV_ABI scePngDecDecodeWithInputControl() {
@@ -112,8 +183,8 @@ s32 PS4_SYSV_ABI scePngDecDecodeWithInputControl() {
 }
 
 s32 PS4_SYSV_ABI scePngDecDelete(OrbisPngDecHandle handle) {
-    handle = nullptr; // ?
-    LOG_ERROR(Lib_Png, "(STUBBED)called");
+    auto pngh = *(PngHandler**)handle;
+    png_destroy_read_struct(&pngh->png_ptr, &pngh->info_ptr, nullptr);
     return ORBIS_OK;
 }
 
@@ -123,16 +194,60 @@ s32 PS4_SYSV_ABI scePngDecParseHeader(const OrbisPngDecParseParam* param,
         LOG_ERROR(Lib_Png, "Invalid param!");
         return ORBIS_PNG_DEC_ERROR_INVALID_PARAM;
     }
-    int width, height, channels;
-    const u8* png_raw = (const u8*)(param->pngMemAddr);
-    int img = stbi_info_from_memory(png_raw, param->pngMemSize, &width, &height, &channels);
-    if (img == 0) {
-        LOG_ERROR(Lib_Png, "Decoding failed!");
-        return ORBIS_PNG_DEC_ERROR_DECODE_ERROR;
+
+    u8 header[8];
+    memcpy(header, param->pngMemAddr, 8);
+    // Check if the header indicates a valid PNG file
+    if (png_sig_cmp(header, 0, 8)) {
+        LOG_ERROR(Lib_Png, "Memory doesn't contain a valid png file");
+        return ORBIS_PNG_DEC_ERROR_INVALID_DATA;
     }
-    bool isInterlaced = (png_raw[28] == 1);
-    bool isTransparent = checktRNS(png_raw, param->pngMemSize);
-    setImageInfoParams(imageInfo, width, height, channels, isInterlaced, isTransparent);
+    // Create a libpng structure, also pass our custom error/warning functions
+    auto png_ptr =
+        png_create_read_struct(PNG_LIBPNG_VER_STRING, nullptr, PngDecError, PngDecWarning);
+
+    // Create a libpng info structure
+    auto info_ptr = png_create_info_struct(png_ptr);
+
+    struct pngstruct {
+        const u8* data;
+        size_t size;
+        u64 offset;
+    } pngdata = {
+        .data = (const u8*)param->pngMemAddr,
+        .size = param->pngMemSize,
+        .offset = 0,
+    };
+
+    png_set_read_fn(png_ptr, (void*)&pngdata, [](png_structp ps, png_bytep data, png_size_t len) {
+        auto pngdata = (pngstruct*)png_get_io_ptr(ps);
+        ::memcpy(data, pngdata->data + pngdata->offset, len);
+        pngdata->offset += len;
+    });
+
+    // Now call png_read_info with our pngPtr as image handle, and infoPtr to receive the file
+    // info.
+    png_read_info(png_ptr, info_ptr);
+
+    imageInfo->imageWidth = png_get_image_width(png_ptr, info_ptr);
+    imageInfo->imageHeight = png_get_image_height(png_ptr, info_ptr);
+    imageInfo->colorSpace = MapPngColor(png_get_color_type(png_ptr, info_ptr));
+    imageInfo->bitDepth = png_get_bit_depth(png_ptr, info_ptr);
+    imageInfo->imageFlag = 0;
+    if (png_get_interlace_type(png_ptr, info_ptr) == 1) {
+        imageInfo->imageFlag |= OrbisPngDecImageFlag::ORBIS_PNG_DEC_IMAGE_FLAG_ADAM7_INTERLACE;
+    }
+    if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)) {
+
+        imageInfo->imageFlag |= ORBIS_PNG_DEC_IMAGE_FLAG_TRNS_CHUNK_EXIST;
+    }
+
+    png_destroy_read_struct(&png_ptr, &info_ptr, nullptr);
+    LOG_TRACE(
+        Lib_Png,
+        "imageWidth = {} , imageHeight = {} , colorSpace = {} , bitDepth = {} , imageFlag = {}",
+        imageInfo->imageWidth, imageInfo->imageHeight, imageInfo->colorSpace, imageInfo->bitDepth,
+        imageInfo->imageFlag);
     return ORBIS_OK;
 }
 
@@ -149,9 +264,7 @@ s32 PS4_SYSV_ABI scePngDecQueryMemorySize(const OrbisPngDecCreateParam* param) {
         LOG_ERROR(Lib_Png, "Invalid size! width = {}", param->maxImageWidth);
         return ORBIS_PNG_DEC_ERROR_INVALID_SIZE;
     }
-    int ret =
-        (8 << ((u8)param->attribute & 0x1f)) * (param->maxImageWidth + 0x47U & 0xfffffff8) + 0xd090;
-    return ret;
+    return sizeof(PngHandler);
 }
 
 void RegisterlibScePngDec(Core::Loader::SymbolsResolver* sym) {
diff --git a/src/core/libraries/libpng/pngdec.h b/src/core/libraries/libpng/pngdec.h
index 35034a19..9d807166 100644
--- a/src/core/libraries/libpng/pngdec.h
+++ b/src/core/libraries/libpng/pngdec.h
@@ -8,54 +8,55 @@
 namespace Core::Loader {
 class SymbolsResolver;
 }
+
 namespace Libraries::PngDec {
 
-constexpr int ORBIS_PNG_DEC_ERROR_INVALID_ADDR = 0x80690001;
-constexpr int ORBIS_PNG_DEC_ERROR_INVALID_SIZE = 0x80690002;
-constexpr int ORBIS_PNG_DEC_ERROR_INVALID_PARAM = 0x80690003;
-constexpr int ORBIS_PNG_DEC_ERROR_INVALID_HANDLE = 0x80690004;
-constexpr int ORBIS_PNG_DEC_ERROR_INVALID_WORK_MEMORY = 0x80690005;
-constexpr int ORBIS_PNG_DEC_ERROR_INVALID_DATA = 0x80690010;
-constexpr int ORBIS_PNG_DEC_ERROR_UNSUPPORT_DATA = 0x80690011;
-constexpr int ORBIS_PNG_DEC_ERROR_DECODE_ERROR = 0x80690012;
-constexpr int ORBIS_PNG_DEC_ERROR_FATAL = 0x80690020;
-
-typedef struct OrbisPngDecParseParam {
-    const void* pngMemAddr;
-    u32 pngMemSize;
-    u32 reserved;
-} OrbisPngDecParseParam;
-
-typedef struct OrbisPngDecImageInfo {
-    u32 imageWidth;
-    u32 imageHeight;
-    u16 colorSpace;
-    u16 bitDepth;
-    u32 imageFlag;
-} OrbisPngDecImageInfo;
-
-typedef enum OrbisPngDecColorSpace {
+enum OrbisPngDecColorSpace {
     ORBIS_PNG_DEC_COLOR_SPACE_GRAYSCALE = 2,
     ORBIS_PNG_DEC_COLOR_SPACE_RGB,
     ORBIS_PNG_DEC_COLOR_SPACE_CLUT,
     ORBIS_PNG_DEC_COLOR_SPACE_GRAYSCALE_ALPHA = 18,
     ORBIS_PNG_DEC_COLOR_SPACE_RGBA
-} ScePngDecColorSpace;
+};
 
-typedef enum OrbisPngDecImageFlag {
+enum OrbisPngDecImageFlag {
     ORBIS_PNG_DEC_IMAGE_FLAG_ADAM7_INTERLACE = 1,
     ORBIS_PNG_DEC_IMAGE_FLAG_TRNS_CHUNK_EXIST = 2
-} OrbisPngDecImageFlag;
+};
 
-typedef struct OrbisPngDecCreateParam {
+enum OrbisPngDecPixelFormat {
+    ORBIS_PNG_DEC_PIXEL_FORMAT_R8G8B8A8 = 0,
+    ORBIS_PNG_DEC_PIXEL_FORMAT_B8G8R8A8
+};
+
+enum OrbisPngDecAttribute {
+    ORBIS_PNG_DEC_ATTRIBUTE_NONE = 0,
+    ORBIS_PNG_DEC_ATTRIBUTE_BIT_DEPTH_16
+};
+
+struct OrbisPngDecParseParam {
+    const void* pngMemAddr;
+    u32 pngMemSize;
+    u32 reserved;
+};
+
+struct OrbisPngDecImageInfo {
+    u32 imageWidth;
+    u32 imageHeight;
+    u16 colorSpace;
+    u16 bitDepth;
+    u32 imageFlag;
+};
+
+struct OrbisPngDecCreateParam {
     u32 thisSize;
     u32 attribute;
     u32 maxImageWidth;
-} OrbisPngDecCreateParam;
+};
 
 typedef void* OrbisPngDecHandle;
 
-typedef struct OrbisPngDecDecodeParam {
+struct OrbisPngDecDecodeParam {
     const void* pngMemAddr;
     void* imageMemAddr;
     u32 pngMemSize;
@@ -63,7 +64,7 @@ typedef struct OrbisPngDecDecodeParam {
     u16 pixelFormat;
     u16 alphaValue;
     u32 imagePitch;
-} OrbisPngDecDecodeParam;
+};
 
 s32 PS4_SYSV_ABI scePngDecCreate(const OrbisPngDecCreateParam* param, void* memoryAddress,
                                  u32 memorySize, OrbisPngDecHandle* handle);