X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fbackends%2Fopengl%2Ftexture2d_backend.cpp;h=54c82280e5b1a0e3e30b0e51bc7a1da6abf28ff6;hb=3b98e13c823d4cb7e4d2d4d14e8440b44bc71f91;hp=578cefe390f0a2ec2bfa4bdb15e73426fef43822;hpb=b274dc87db4422498e72823649358114dfca0096;p=libs%2Fgl.git

diff --git a/source/backends/opengl/texture2d_backend.cpp b/source/backends/opengl/texture2d_backend.cpp
index 578cefe3..54c82280 100644
--- a/source/backends/opengl/texture2d_backend.cpp
+++ b/source/backends/opengl/texture2d_backend.cpp
@@ -41,9 +41,7 @@ OpenGLTexture2D::OpenGLTexture2D():
 
 void OpenGLTexture2D::allocate()
 {
-	unsigned width = static_cast<const Texture2D *>(this)->width;
-	unsigned height = static_cast<const Texture2D *>(this)->height;
-	unsigned levels = static_cast<const Texture2D *>(this)->levels;
+	const Texture2D &self = *static_cast<const Texture2D *>(this);
 
 	if(!id)
 		create();
@@ -52,22 +50,22 @@ void OpenGLTexture2D::allocate()
 	if(ARB_texture_storage)
 	{
 		if(ARB_direct_state_access)
-			glTextureStorage2D(id, levels, gl_fmt, width, height);
+			glTextureStorage2D(id, self.levels, gl_fmt, self.width, self.height);
 		else
 		{
 			bind_scratch();
-			glTexStorage2D(target, levels, gl_fmt, width, height);
+			glTexStorage2D(target, self.levels, gl_fmt, self.width, self.height);
 		}
 	}
 	else
 	{
 		bind_scratch();
-		glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, levels-1);
+		glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, self.levels-1);
 		GLenum comp = get_gl_components(get_components(storage_fmt));
 		GLenum type = get_gl_type(get_component_type(storage_fmt));
-		for(unsigned i=0; i<levels; ++i)
+		for(unsigned i=0; i<self.levels; ++i)
 		{
-			auto lv_size = static_cast<const Texture2D *>(this)->get_level_size(i);
+			auto lv_size = self.get_level_size(i);
 			glTexImage2D(target, i, gl_fmt, lv_size.x, lv_size.y, 0, comp, type, 0);
 		}
 	}
@@ -95,11 +93,25 @@ void OpenGLTexture2D::sub_image(unsigned level, int x, int y, unsigned wd, unsig
 	glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
 }
 
-Resource::AsyncLoader *OpenGLTexture2D::create_async_loader(IO::Seekable &io)
+Resource::AsyncLoader *OpenGLTexture2D::load(IO::Seekable &io, const Resources *)
 {
 	return new AsyncLoader(static_cast<Texture2D &>(*this), io);
 }
 
+uint64_t OpenGLTexture2D::get_data_size() const
+{
+	if(!id)
+		return 0;
+
+	const Texture2D &self = *static_cast<const Texture2D *>(this);
+
+	size_t level_size = self.width*self.height*get_pixel_size(format);
+	size_t total_size = level_size;
+	for(unsigned i=0; i<self.levels; ++i, level_size>>=2)
+		total_size += level_size;
+	return total_size;
+}
+
 void OpenGLTexture2D::unload()
 {
 	glDeleteTextures(1, &id);
@@ -151,7 +163,7 @@ bool OpenGLTexture2D::AsyncLoader::process()
 	}
 	else if(phase==1)
 	{
-		pixel_buffer.storage(n_bytes);
+		pixel_buffer.storage(n_bytes, STREAMING);
 		mapped_address = reinterpret_cast<char *>(pixel_buffer.map());
 	}
 	else if(phase==2)