Added attribute to irrlicht's driver to enable automatic resize

of images that are too big. This is then used to automatically
resize any textures (except fonts, background screen) to be
automatically resized to 512x512 if they are bigger.

lib/irrlicht/include/IAttributes.h

@@ -501,11 +501,11 @@ public:
 	//! Gets an attribute as dimension2d
 	//! \param attributeName: Name of the attribute to get.
 	//! \return Returns value of the attribute previously set by setAttribute()
-	virtual core::dimension2d<u32> getAttributeAsDimension2d(const c8* attributeName) = 0;
+	virtual core::dimension2d<u32> getAttributeAsDimension2d(const c8* attributeName) const = 0;
 
 	//! Gets an attribute as dimension2d
 	//! \param index: Index value, must be between 0 and getAttributeCount()-1.
-	virtual core::dimension2d<u32> getAttributeAsDimension2d(s32 index) = 0;
+	virtual core::dimension2d<u32> getAttributeAsDimension2d(s32 index) const = 0;
 
 	//! Sets an attribute as dimension2d
 	virtual void setAttribute(s32 index, core::dimension2d<u32> v) = 0;

lib/irrlicht/include/IVideoDriver.h

@@ -324,6 +324,8 @@ namespace video
 		AntiAlias (int) Number of Samples the driver uses for each pixel. 0 and 1 means anti aliasing is off, typical values are 2,4,8,16,32
 		*/
 		virtual const io::IAttributes& getDriverAttributes() const=0;
+        //! Non-const version (with a different name to avoid involuntary mistakes). */
+        virtual io::IAttributes& getNonConstDriverAttributes() = 0;
 
 		//! Check if the driver was recently reset.
 		/** For d3d devices you will need to recreate the RTTs if the

lib/irrlicht/source/Irrlicht/CAttributes.cpp

@@ -429,7 +429,7 @@ void CAttributes::setAttribute(const c8* attributeName, core::dimension2d<u32> v
 //! Gets an attribute as dimension2d
 //! \param attributeName: Name of the attribute to get.
 //! \return Returns value of the attribute previously set by setAttribute()
-core::dimension2d<u32> CAttributes::getAttributeAsDimension2d(const c8* attributeName)
+core::dimension2d<u32> CAttributes::getAttributeAsDimension2d(const c8* attributeName) const
 {
 	IAttribute* att = getAttributeP(attributeName);
 	if (att)
@@ -737,7 +737,7 @@ core::rect<s32>  CAttributes::getAttributeAsRect(s32 index)
 
 //! Gets an attribute as dimension2d
 //! \param index: Index value, must be between 0 and getAttributeCount()-1.
-core::dimension2d<u32>  CAttributes::getAttributeAsDimension2d(s32 index)
+core::dimension2d<u32>  CAttributes::getAttributeAsDimension2d(s32 index) const
 {
 	if ((u32)index < Attributes.size())
 		return Attributes[index]->getDimension2d();

lib/irrlicht/source/Irrlicht/CAttributes.h

@@ -465,11 +465,11 @@ public:
 	//! Gets an attribute as dimension2d
 	//! \param attributeName: Name of the attribute to get.
 	//! \return Returns value of the attribute previously set by setAttribute()
-	virtual core::dimension2d<u32> getAttributeAsDimension2d(const c8* attributeName);
+	virtual core::dimension2d<u32> getAttributeAsDimension2d(const c8* attributeName) const;
 
 	//! Gets an attribute as dimension2d
 	//! \param index: Index value, must be between 0 and getAttributeCount()-1.
-	virtual core::dimension2d<u32> getAttributeAsDimension2d(s32 index);
+	virtual core::dimension2d<u32> getAttributeAsDimension2d(s32 index) const;
 
 	//! Sets an attribute as dimension2d
 	virtual void setAttribute(s32 index, core::dimension2d<u32> v);

lib/irrlicht/source/Irrlicht/CNullDriver.cpp

@@ -298,6 +298,11 @@ const io::IAttributes& CNullDriver::getDriverAttributes() const
 	return *DriverAttributes;
 }
 
+//! Get attributes of the actual video driver
+io::IAttributes& CNullDriver::getNonConstDriverAttributes()
+{
+    return *DriverAttributes;
+}
 
 //! sets transformation
 void CNullDriver::setTransform(E_TRANSFORMATION_STATE state, const core::matrix4& mat)

lib/irrlicht/source/Irrlicht/CNullDriver.h

@@ -64,6 +64,9 @@ namespace video
 		//! Get attributes of the actual video driver
 		const io::IAttributes& getDriverAttributes() const;
 
+        //! Non-const version (with a different name to avoid involuntary mistakes). */
+        virtual io::IAttributes& getNonConstDriverAttributes();
+
 		//! sets transformation
 		virtual void setTransform(E_TRANSFORMATION_STATE state, const core::matrix4& mat);
 

lib/irrlicht/source/Irrlicht/COpenGLTexture.cpp

@@ -11,6 +11,8 @@
 #include "COpenGLDriver.h"
 #include "os.h"
 #include "CColorConverter.h"
+#include "IAttributes.h"
+#include "IrrlichtDevice.h"
 
 #include "irrString.h"
 
@@ -314,7 +316,17 @@ void COpenGLTexture::getImageValues(IImage* image)
 		ImageSize.Width = (u32)(Driver->MaxTextureSize*ratio);
 	}
 	TextureSize=ImageSize.getOptimalSize(!Driver->queryFeature(EVDF_TEXTURE_NPOT));
+    const core::dimension2du max_size = Driver->getDriverAttributes()
+                                 .getAttributeAsDimension2d("MAX_TEXTURE_SIZE");
 
+    if (max_size.Width> 0 && TextureSize.Width > max_size.Width)
+    {
+        TextureSize.Width = max_size.Width;
+    }
+    if (max_size.Height> 0 && TextureSize.Height > max_size.Height)
+    {
+        TextureSize.Height = max_size.Height;
+    }
 	ColorFormat = getBestColorFormat(image->getColorFormat());
 }
 

src/graphics/2dutils.cpp

@@ -206,7 +206,7 @@ void draw2DImage(const video::ITexture* texture, const core::rect<s32>& destRect
         tex_width, tex_height,
         tex_center_pos_x, tex_center_pos_y;
 
-    getSize(texture->getOriginalSize().Width, texture->getOriginalSize().Height, texture->isRenderTarget(),
+    getSize(texture->getSize().Width, texture->getSize().Height, texture->isRenderTarget(),
         destRect, sourceRect, width, height, center_pos_x, center_pos_y,
         tex_width, tex_height, tex_center_pos_x, tex_center_pos_y);
 

src/graphics/irr_driver.cpp

@@ -592,10 +592,23 @@ void IrrDriver::initDevice()
     m_pointer_shown = true;
 }   // initDevice
 
+// ----------------------------------------------------------------------------
+void IrrDriver::setMaxTextureSize()
+{
+    if( (UserConfigParams::m_high_definition_textures & 0x01) == 0)
+    {
+        io::IAttributes &att = m_video_driver->getNonConstDriverAttributes();
+        att.setAttribute("MAX_TEXTURE_SIZE", core::dimension2du(512, 512));
+    }
+}   // setMaxTextureSize
+
+// ----------------------------------------------------------------------------
 void IrrDriver::cleanSunInterposer()
 {
     delete m_sun_interposer;
-}
+}   // cleanSunInterposer
+
+// ----------------------------------------------------------------------------
 void IrrDriver::createSunInterposer()
 {
     scene::IMesh * sphere = m_scene_manager->getGeometryCreator()->createSphereMesh(1, 16, 16);

src/graphics/irr_driver.hpp

@@ -36,7 +36,6 @@
 #include <SColor.h>
 #include "IrrlichtDevice.h"
 #include "ISkinnedMesh.h"
-//#include "graphics/rtts.hpp"
 #include "graphics/shaders.hpp"
 #include "graphics/wind.hpp"
 #include "io/file_manager.hpp"
@@ -354,6 +353,7 @@ public:
         ~IrrDriver();
     void initDevice();
     void reset();
+    void setMaxTextureSize();
     void getOpenGLData(std::string *vendor, std::string *renderer,
                        std::string *version);
 

src/guiengine/scalable_font.cpp

@@ -4,16 +4,17 @@
 
 #include "guiengine/scalable_font.hpp"
 
-#include <IGUIEnvironment.h>
-#include <IXMLReader.h>
-#include <IReadFile.h>
-#include <IVideoDriver.h>
-#include <IGUISpriteBank.h>
-
+#include "graphics/2dutils.hpp"
 #include "guiengine/engine.hpp"
 #include "io/file_manager.hpp"
 #include "utils/translation.hpp"
-#include "graphics/2dutils.hpp"
+
+#include <IAttributes.h>
+#include <IGUIEnvironment.h>
+#include <IGUISpriteBank.h>
+#include <IReadFile.h>
+#include <IVideoDriver.h>
+#include <IXMLReader.h>
 
 namespace irr
 {
@@ -732,7 +733,16 @@ void ScalableFont::lazyLoadTexture(int texID)
 
     // load texture
     assert(m_texture_files[texID].m_file_name.size() > 0);
+
+    // Font textures can not be resized (besides the impact on quality in
+    // this case, the indices in the xml files would become wrong).
+    core::dimension2du old_max_size = Driver->getDriverAttributes()
+                                     .getAttributeAsDimension2d("MAX_TEXTURE_SIZE");
+    Driver->getNonConstDriverAttributes().setAttribute("MAX_TEXTURE_SIZE",
+                                                       core::dimension2du(0, 0));
+
     SpriteBank->setTexture(texID, Driver->getTexture( m_texture_files[texID].m_file_name ));
+    Driver->getNonConstDriverAttributes().setAttribute("MAX_TEXTURE_SIZE", old_max_size);
 
     // set previous mip-map+filter state
     //Driver->setTextureCreationFlag(video::ETCF_CREATE_MIP_MAPS, mipmap);

src/main.cpp

@@ -1128,6 +1128,10 @@ void initRest()
     powerup_manager         = new PowerupManager       ();
     attachment_manager      = new AttachmentManager    ();
     highscore_manager       = new HighscoreManager     ();
+
+    // The maximum texture size can not be set earlier, since
+    // e.g. the background image needs to be loaded in high res.
+    irr_driver->setMaxTextureSize();
     KartPropertiesManager::addKartSearchDir(
                  file_manager->getAddonsFile("karts/"));
     track_manager->addTrackSearchDir(