fix nvjpg icon loading if w*bpp != pitch. add build option to enable/disable nvjpg (for testing).

sphaira/CMakeLists.txt

@@ -208,6 +208,8 @@ FetchContent_Declare(nvjpg
 )
 
 set(USE_NEW_ZSTD ON)
+# has issues with some homebrew and game icons (oxenfree, overwatch2).
+set(USE_NVJPG ON)
 
 set(ZSTD_BUILD_STATIC ON)
 set(ZSTD_BUILD_SHARED OFF)
@@ -310,13 +312,15 @@ add_library(libnxtc
 )
 target_include_directories(libnxtc PUBLIC ${libnxtc_SOURCE_DIR}/include)
 
-add_library(nvjpg
-    ${nvjpg_SOURCE_DIR}/lib/decoder.cpp
-    ${nvjpg_SOURCE_DIR}/lib/image.cpp
-    ${nvjpg_SOURCE_DIR}/lib/surface.cpp
-)
-target_include_directories(nvjpg PUBLIC ${nvjpg_SOURCE_DIR}/include)
-set_target_properties(nvjpg PROPERTIES CXX_STANDARD 26)
+if (USE_NVJPG)
+    add_library(nvjpg
+        ${nvjpg_SOURCE_DIR}/lib/decoder.cpp
+        ${nvjpg_SOURCE_DIR}/lib/image.cpp
+        ${nvjpg_SOURCE_DIR}/lib/surface.cpp
+    )
+    target_include_directories(nvjpg PUBLIC ${nvjpg_SOURCE_DIR}/include)
+    set_target_properties(nvjpg PROPERTIES CXX_STANDARD 26)
+endif()
 
 find_package(ZLIB REQUIRED)
 find_library(minizip_lib minizip REQUIRED)
@@ -348,7 +352,6 @@ target_link_libraries(sphaira PRIVATE
     yyjson
     # libusbhsfs
     libnxtc
-    nvjpg
 
     ${minizip_lib}
     ZLIB::ZLIB
@@ -365,6 +368,11 @@ else()
     target_include_directories(sphaira PRIVATE ${zstd_inc})
 endif()
 
+if (USE_NVJPG)
+    target_link_libraries(sphaira PRIVATE nvjpg)
+    target_compile_definitions(sphaira PRIVATE USE_NVJPG)
+endif()
+
 target_include_directories(sphaira PRIVATE
     include
     ${minizip_inc}

sphaira/include/app.hpp

@@ -10,7 +10,9 @@
 #include "fs.hpp"
 #include "log.hpp"
 
+#ifdef USE_NVJPG
 #include <nvjpg.hpp>
+#endif
 #include <switch.h>
 #include <vector>
 #include <string>
@@ -273,7 +275,9 @@ public:
 
     PLSR_PlayerSoundId m_sound_ids[SoundEffect_MAX]{};
 
+#ifdef USE_NVJPG
     nj::Decoder m_decoder;
+#endif
 
 private: // from nanovg decko3d example by adubbz
     static constexpr unsigned NumFramebuffers = 2;

sphaira/source/app.cpp

@@ -1400,9 +1400,11 @@ App::App(const char* argv0) {
 
     curl::Init();
 
+#ifdef USE_NVJPG
     // this has to be init before deko3d.
     nj::initialize();
     m_decoder.initialize();
+#endif
 
     // get current size of the framebuffer
     const auto fb = GetFrameBufferSize();
@@ -1883,8 +1885,10 @@ App::~App() {
     nvgDeleteDk(this->vg);
     this->renderer.reset();
 
+#ifdef USE_NVJPG
     m_decoder.finalize();
     nj::finalize();
+#endif
 
     // backup hbmenu if it is not sphaira
     if (App::GetReplaceHbmenuEnable() && !IsHbmenu()) {

sphaira/source/image.cpp

@@ -22,7 +22,9 @@
 
 #include "app.hpp"
 #include "log.hpp"
+#ifdef USE_NVJPG
 #include <nvjpg.hpp>
+#endif
 #include <cstring>
 
 namespace sphaira {
@@ -45,6 +47,7 @@ auto ImageLoadInternal(stbi_uc* image_data, int x, int y) -> ImageResult {
     return {};
 }
 
+#ifdef USE_NVJPG
 auto ImageLoadInternal(nj::Image&& image) -> ImageResult {
     if (!image.is_valid() || image.parse()) {
         log_write("[NVJPG] failed to parse image\n");
@@ -68,17 +71,29 @@ auto ImageLoadInternal(nj::Image&& image) -> ImageResult {
     }
 
     ImageResult result{};
-    result.w = image.width;
-    result.h = image.height;
-    result.data.resize(surf.size());
-    std::memcpy(result.data.data(), surf.data(), result.data.size());
+    result.w = surf.width;
+    result.h = surf.height;
+    result.data.resize(surf.width * surf.height * surf.get_bpp());
+    // std::printf("[NVJPG] w: %zu h: %zu bpp: %u pitch: %zu size: %zu size2: %u\n", surf.width, surf.height, surf.get_bpp(), surf.pitch, surf.size(), 256*256*4);
+
+    if (surf.width * surf.get_bpp() == surf.pitch) [[likely]] {
+        std::memcpy(result.data.data(), surf.data(), result.data.size());
+    } else {
+        for (size_t i = 0; i < surf.height; i++) {
+            const auto src_pitch = surf.pitch;
+            const auto dst_pitch = surf.width * surf.get_bpp();
+            std::memcpy(result.data.data() + i * dst_pitch, surf.data() + i * src_pitch, dst_pitch);
+        }
+    }
 
     return result;
 }
+#endif
 
 } // namespace
 
 auto ImageLoadFromMemory(std::span<const u8> data, u32 flags) -> ImageResult {
+#ifdef USE_NVJPG
     if (flags & ImageFlag_JPEG) {
         auto shared_vec = std::make_shared<std::vector<u8>>(data.size());
         std::memcpy(shared_vec->data(), data.data(), shared_vec->size());
@@ -86,19 +101,26 @@ auto ImageLoadFromMemory(std::span<const u8> data, u32 flags) -> ImageResult {
         auto result = ImageLoadInternal(nj::Image{shared_vec});
         // if it failed, try again but without using oss-jpg.
         return result.data.empty() ? ImageLoadFromMemory(data, 0) : result;
-    } else {
+    }
+    else
+#endif
+    {
         int x, y, channels;
         return ImageLoadInternal(stbi_load_from_memory(data.data(), data.size(), &x, &y, &channels, BPP), x, y);
     }
 }
 
 auto ImageLoadFromFile(const fs::FsPath& file, u32 flags) -> ImageResult {
+#ifdef USE_NVJPG
     if (flags & ImageFlag_JPEG) {
         // don't make const as it prevents RTO.
         auto result = ImageLoadInternal(nj::Image{file});
         // if it failed, try again but without using oss-jpg.
         return result.data.empty() ? ImageLoadFromFile(file, 0) : result;
-    } else {
+    }
+    else
+#endif
+    {
         int x, y, channels;
         return ImageLoadInternal(stbi_load(file, &x, &y, &channels, BPP), x, y);
     }