Move the Resource function override of Texture classes into backend

[libs/gl.git] / source / backends / opengl / texture2dmultisample_backend.cpp

diff --git a/source/backends/opengl/texture2dmultisample_backend.cpp b/source/backends/opengl/texture2dmultisample_backend.cpp
index c9faa85e99a6dfbee471356db3aa8e941cd40068..e6ee7614b028b88c1c56ea1e11a78e3ead733598 100644 (file)
--- a/source/backends/opengl/texture2dmultisample_backend.cpp
+++ b/source/backends/opengl/texture2dmultisample_backend.cpp
@@ -41,5 +41,13 @@ void OpenGLTexture2DMultisample::allocate()
        apply_swizzle();
 }
 
+size_t OpenGLTexture2DMultisample::get_data_size() const
+{
+       unsigned width = static_cast<const Texture2DMultisample *>(this)->width;
+       unsigned height = static_cast<const Texture2DMultisample *>(this)->height;
+       unsigned samples = static_cast<const Texture2DMultisample *>(this)->samples;
+       return width*height*get_pixel_size(format)*samples;
+}
+
 } // namespace GL
 } // namespace Msp