+ added support for alpha and color loading for images

Signed-off-by: Alexis Maiquez <almamu@almamu.com>

src/WallpaperEngine/Core/Objects/CImage.cpp

@@ -16,11 +16,15 @@ CImage::CImage (
         const glm::vec3& scale,
         const glm::vec3& angles,
         const glm::vec2& size,
-        std::string alignment) :
+        std::string alignment,
+        const glm::vec3& color,
+        float alpha) :
         CObject (visible, id, std::move(name), Type, origin, scale, angles),
         m_size (size),
         m_material (material),
-        m_alignment (std::move(alignment))
+        m_alignment (std::move(alignment)),
+        m_color (color),
+        m_alpha (alpha)
 {
 }
 
@@ -37,6 +41,8 @@ WallpaperEngine::Core::CObject* CImage::fromJSON (
     auto image_it = data.find ("image");
     auto size_val = jsonFindDefault <std::string> (data, "size", "0.0 0.0"); // this one might need some adjustment
     auto alignment = jsonFindDefault <std::string> (data, "alignment", "center");
+    auto alpha = jsonFindDefault <float> (data, "alpha", 1.0);
+    auto color_val = jsonFindDefault <std::string> (data, "color", "1.0 1.0 1.0");
 
     json content = json::parse (WallpaperEngine::FileSystem::loadFullFile ((*image_it).get <std::string> (), container));
 
@@ -51,7 +57,9 @@ WallpaperEngine::Core::CObject* CImage::fromJSON (
         scale,
         angles,
         WallpaperEngine::Core::aToVector2 (size_val),
-        alignment
+        alignment,
+        WallpaperEngine::Core::aToVector3 (color_val),
+        alpha
     );
 }
 
@@ -70,5 +78,14 @@ const std::string& CImage::getAlignment () const
     return this->m_alignment;
 }
 
+const float CImage::getAlpha () const
+{
+    return this->m_alpha;
+}
+
+const glm::vec3& CImage::getColor () const
+{
+    return this->m_color;
+}
 
 const std::string CImage::Type = "image";

src/WallpaperEngine/Core/Objects/CImage.h

@@ -31,6 +31,8 @@ namespace WallpaperEngine::Core::Objects
         const Images::CMaterial* getMaterial () const;
         const glm::vec2& getSize () const;
         const std::string& getAlignment () const;
+        const float getAlpha () const;
+        const glm::vec3& getColor () const;
 
     protected:
         CImage (
@@ -42,7 +44,9 @@ namespace WallpaperEngine::Core::Objects
                 const glm::vec3& scale,
                 const glm::vec3& angles,
                 const glm::vec2& size,
-                std::string alignment
+                std::string alignment,
+                const glm::vec3& color,
+                float alpha
         );
 
         static const std::string Type;
@@ -51,5 +55,7 @@ namespace WallpaperEngine::Core::Objects
         glm::vec2 m_size;
         Images::CMaterial* m_material;
         std::string m_alignment;
+        float m_alpha;
+        glm::vec3 m_color;
     };
 };

src/WallpaperEngine/Render/Objects/Effects/CPass.cpp

@@ -467,8 +467,8 @@ void CPass::setupUniforms ()
     // register variables like brightness and alpha with some default value
     this->addUniform ("g_Brightness", 1.0f); // TODO: GET FROM THE IMAGE
     this->addUniform ("g_UserAlpha", 1.0f);
-    this->addUniform ("g_Alpha", 1.0f); // TODO: GET FROM THE IMAGE
+    this->addUniform ("g_Alpha", this->m_material->getImage ()->getImage ()->getAlpha ());
-    this->addUniform ("g_Color", glm::vec3 {1.0f, 1.0f, 1.0f}); // TODO: GET FROM THE IMAGE
+    this->addUniform ("g_Color", this->m_material->getImage ()->getImage ()->getColor ());
     // add some external variables
     this->addUniform ("g_Time", &g_Time);
     // add model-view-projection matrix