Load image file and create texture separately with SOIL2

The new combined function no longer returns the image size, so we need to load the image ourselves, store the size and then pass the buffer to SOIL_create_OGL_texture().

Author: kblaschke

src/libprojectM/Renderer/TextureManager.cpp

@@ -212,13 +212,23 @@ auto TextureManager::LoadTexture(const ScannedFile& file) -> std::shared_ptr<Tex
 
     int width{};
     int height{};
+    int channels{};
 
-    unsigned int const tex = SOIL_load_OGL_texture(
-        file.filePath.c_str(),
-        SOIL_LOAD_RGBA,
+    std::unique_ptr<unsigned char, decltype(&SOIL_free_image_data)> imageData(SOIL_load_image(file.filePath.c_str(), &width, &height, &channels, SOIL_LOAD_RGBA), SOIL_free_image_data);
+
+    if (imageData == nullptr)
+    {
+        return {};
+    }
+
+    unsigned int const tex = SOIL_create_OGL_texture(
+        imageData.get(),
+        &width, &height, SOIL_LOAD_RGBA,
         SOIL_CREATE_NEW_ID,
         SOIL_FLAG_MULTIPLY_ALPHA);
 
+    imageData.reset();
+
     if (tex == 0)
     {
         return {};