~ use glClear instead of allocating pixels for FBOs creation

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

src/WallpaperEngine/Render/CFBO.cpp

@@ -8,8 +8,6 @@ CFBO::CFBO (std::string name, ITexture::TextureFormat format, float scale, uint3
     m_scale (scale)
 {
     // create an empty texture that'll be free'd so the FBO is transparent
-    uint32_t* pixels = new uint32_t [textureWidth * textureHeight] {0xFFFFFFFF};
-
     GLenum drawBuffers [1] = {GL_COLOR_ATTACHMENT0};
     // create the main framebuffer
     glGenFramebuffers (1, &this->m_framebuffer);
@@ -19,9 +17,7 @@ CFBO::CFBO (std::string name, ITexture::TextureFormat format, float scale, uint3
     // bind the new texture to set settings on it
     glBindTexture (GL_TEXTURE_2D, this->m_texture);
     // give OpenGL an empty image
-    glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA8, textureWidth, textureHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
-
-    delete pixels;
+    glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA8, textureWidth, textureHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
 
     // set filtering parameters, otherwise the texture is not rendered
     glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
@@ -38,6 +34,9 @@ CFBO::CFBO (std::string name, ITexture::TextureFormat format, float scale, uint3
     // ensure first framebuffer is okay
     if (glCheckFramebufferStatus (GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
         throw std::runtime_error ("Framebuffers are not properly set");
+    
+    // clear the framebuffer
+    glClear (GL_COLOR_BUFFER_BIT);
 
     this->m_resolution = {
         textureWidth, textureHeight,