https://sourceforge.net/tracker2/?func=detail&aid=2552603&group_id=74339&atid=540678

Add IVideoDriver methods to enumerate the available image loaders and writers.  Unit test added.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@2174 dfc29bdd-3216-0410-991c-e03cc46cb475

changes.txt

@@ -463,6 +463,8 @@ Changes in version 1.6, TA
 
 Changes in version 1.6
 
+ - IVideoDriver has methods to enumerate the available image loaders and writers.
+
  - Octtree scene nodes are now IMeshSceneNodes rather than ISceneNodes, and so you can call getMesh() on them.
 
  - New scene parameter B3D_LOADER_IGNORE_MIPMAP_FLAG to ignore the often missing mipmap flag in b3d files. If this parameter is true, the old pre Irrlicht-1.5 behavior is restored.

include/IVideoDriver.h

@@ -173,6 +173,26 @@ namespace video
 		\return Matrix describing the transformation. */
 		virtual const core::matrix4& getTransform(E_TRANSFORMATION_STATE state) const =0;
 
+		//! Retrieve the number of image loaders
+		/** \return Number of image loaders */
+		virtual u32 getImageLoaderCount() const = 0;
+
+		//! Retrieve the given image loader
+		/** \param n The index of the loader to retrieve. This parameter is an 0-based
+		array index.
+		\return A pointer to the specified loader, 0 if the index is uncorrect. */
+		virtual IImageLoader* getImageLoader(u32 n) = 0;
+
+		//! Retrieve the number of image writers
+		/** \return Number of image writers */
+		virtual u32 getImageWriterCount() const = 0;
+
+		//! Retrieve the given image writer
+		/** \param n The index of the writer to retrieve. This parameter is an 0-based
+		array index.
+		\return A pointer to the specified writer, 0 if the index is uncorrect. */
+		virtual IImageWriter* getImageWriter(u32 n) = 0;
+
 		//! Sets a material.
 		/** All 3d drawing functions will draw geometry using this material thereafter.
 		\param material: Material to be used from now on. */

source/Irrlicht/CNullDriver.cpp

@@ -193,6 +193,38 @@ void CNullDriver::addExternalImageWriter(IImageWriter* writer)
 }
 
 
+//! Retrieve the number of image loaders
+u32 CNullDriver::getImageLoaderCount() const
+{
+	return SurfaceLoader.size();
+}
+
+
+//! Retrieve the given image loader
+IImageLoader* CNullDriver::getImageLoader(u32 n)
+{
+	if(n < SurfaceLoader.size())
+		return SurfaceLoader[n];
+	return 0;
+}
+
+
+//! Retrieve the number of image writers
+u32 CNullDriver::getImageWriterCount() const
+{
+	return SurfaceWriter.size();
+}
+
+
+//! Retrieve the given image writer
+IImageWriter* CNullDriver::getImageWriter(u32 n)
+{
+	if(n < SurfaceWriter.size())
+		return SurfaceWriter[n];
+	return 0;
+}
+
+
 //! deletes all textures
 void CNullDriver::deleteAllTextures()
 {

source/Irrlicht/CNullDriver.h

@@ -60,6 +60,18 @@ namespace video
 		//! sets transformation
 		virtual void setTransform(E_TRANSFORMATION_STATE state, const core::matrix4& mat);
 
+		//! Retrieve the number of image loaders
+		virtual u32 getImageLoaderCount() const;
+
+		//! Retrieve the given image loader
+		virtual IImageLoader* getImageLoader(u32 n);
+
+		//! Retrieve the number of image writers
+		virtual u32 getImageWriterCount() const;
+
+		//! Retrieve the given image writer
+		virtual IImageWriter* getImageWriter(u32 n);
+
 		//! sets a material
 		virtual void setMaterial(const SMaterial& material);
 

tests/main.cpp

@@ -86,7 +86,7 @@ int main(int argumentCount, char * arguments[])
 	TEST(vectorPositionDimension2d);
 	TEST(writeImageToFile);
 	TEST(flyCircleAnimator);
-//	TEST(relativeTransformations);
+	TEST(enumerateImageManipulators);
 
 	const unsigned int numberOfTests = tests.size();
 

tests/tests-last-passed-at.txt

-Test suite pass at GMT Thu Jan 29 09:25:13 2009
+Test suite pass at GMT Sat Jan 31 16:59:34 2009
 

tests/tests.cbp

@@ -44,6 +44,7 @@
 		<Unit filename="disambiguateTextures.cpp" />
 		<Unit filename="drawPixel.cpp" />
 		<Unit filename="drawRectOutline.cpp" />
+		<Unit filename="enumerateImageManipulators.cpp" />
 		<Unit filename="exports.cpp" />
 		<Unit filename="fast_atof.cpp" />
 		<Unit filename="flyCircleAnimator.cpp" />

tests/tests.workspace

 <?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
 <CodeBlocks_workspace_file>
 	<Workspace title="tests">
-		<Project filename="..\source\Irrlicht\Irrlicht-gcc.cbp" />
-		<Project filename="tests.cbp" active="1" />
+		<Project filename="..\source\Irrlicht\Irrlicht-gcc.cbp" active="1" />
+		<Project filename="tests.cbp" />
 	</Workspace>
 </CodeBlocks_workspace_file>

tests/tests_vc8.vcproj

@@ -197,6 +197,10 @@
 				RelativePath=".\drawRectOutline.cpp"
 				>
 			</File>
+			<File
+				RelativePath=".\enumerateImageManipulators.cpp"
+				>
+			</File>
 			<File
 				RelativePath=".\exports.cpp"
 				>

tests/tests_vc9.vcproj

@@ -198,6 +198,10 @@
 				RelativePath=".\drawRectOutline.cpp"
 				>
 			</File>
+			<File
+				RelativePath=".\enumerateImageManipulators.cpp"
+				>
+			</File>
 			<File
 				RelativePath=".\exports.cpp"
 				>