Check availability of color buffer float extension in GLES renderer

src/graphics/central_settings.cpp

@@ -52,6 +52,7 @@ void CentralVideoSettings::init()
     
 #if defined(USE_GLES2)
     hasBGRA = false;
+    hasColorBufferFloat = false;
 #endif
 
     m_GI_has_artifact = false;
@@ -231,6 +232,12 @@ void CentralVideoSettings::init()
             Log::info("GLDriver", "EXT texture format BGRA8888 Present");
         }
         
+        if (!GraphicsRestrictions::isDisabled(GraphicsRestrictions::GR_COLOR_BUFFER_FLOAT) &&
+            hasGLExtension("GL_EXT_color_buffer_float"))
+        {
+            hasColorBufferFloat = true;
+            Log::info("GLDriver", "EXT Color Buffer Float Present");
+        }
 #endif
     }
 }
@@ -355,6 +362,11 @@ bool CentralVideoSettings::isEXTTextureFormatBGRA8888Usable() const
 {
     return hasBGRA;
 }
+
+bool CentralVideoSettings::isEXTColorBufferFloatUsable() const
+{
+    return hasColorBufferFloat;
+}
 #endif
 
 bool CentralVideoSettings::supportsShadows() const

src/graphics/central_settings.hpp

@@ -45,6 +45,7 @@ private:
     
 #if defined(USE_GLES2)
     bool hasBGRA;
+    bool hasColorBufferFloat;
 #endif
 
     bool m_need_rh_workaround;
@@ -82,6 +83,7 @@ public:
     
 #if defined(USE_GLES2)
     bool isEXTTextureFormatBGRA8888Usable() const;
+    bool isEXTColorBufferFloatUsable() const;
 #endif
 
 

src/graphics/graphics_restrictions.cpp

@@ -59,6 +59,7 @@ namespace GraphicsRestrictions
             "ExplicitAttribLocation",
 #if defined(USE_GLES2)
             "TextureFormatBGRA8888",
+            "ColorBufferFloat",
 #endif
             "DriverRecentEnough",
             "HighDefinitionTextures",

src/graphics/graphics_restrictions.hpp

@@ -53,6 +53,7 @@ namespace GraphicsRestrictions
         GR_EXPLICIT_ATTRIB_LOCATION,
 #if defined(USE_GLES2)
         GR_TEXTURE_FORMAT_BGRA8888,
+        GR_COLOR_BUFFER_FLOAT,
 #endif
         GR_DRIVER_RECENT_ENOUGH,
         GR_HIGHDEFINITION_TEXTURES,