Added a driver feature check for non-square textures (which some d3d drivers...

Added a driver feature check for non-square textures (which some d3d drivers don't seem to support...). It's not yet used in size calculations, though.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@1612 dfc29bdd-3216-0410-991c-e03cc46cb475

include/EDriverFeatures.h

@@ -73,6 +73,9 @@ namespace video
 		//! Is HLSL supported?
 		EVDF_HLSL,
 
+		//! Are non-square textures supported?
+		EVDF_TEXTURE_NSQUARE,
+
 		//! Are non-power-of-two textures supported?
 		EVDF_TEXTURE_NPOT,
 

source/Irrlicht/CD3D8Driver.cpp

@@ -544,6 +544,8 @@ bool CD3D8Driver::queryFeature(E_VIDEO_DRIVER_FEATURE feature) const
 		return Caps.PixelShaderVersion >= D3DPS_VERSION(2,0);
 	case EVDF_PIXEL_SHADER_3_0:
 		return Caps.PixelShaderVersion >= D3DPS_VERSION(3,0);
+	case EVDF_TEXTURE_NSQUARE:
+		return (Caps.TextureCaps & D3DPTEXTURECAPS_SQUAREONLY) == 0;
 	case EVDF_TEXTURE_NPOT:
 		return (Caps.TextureCaps & D3DPTEXTURECAPS_POW2) == 0;
 	default:

source/Irrlicht/CD3D9Driver.cpp

@@ -589,6 +589,8 @@ bool CD3D9Driver::queryFeature(E_VIDEO_DRIVER_FEATURE feature) const
 		return Caps.PixelShaderVersion >= D3DPS_VERSION(3,0);
 	case EVDF_HLSL:
 		return Caps.VertexShaderVersion >= D3DVS_VERSION(1,1);
+	case EVDF_TEXTURE_NSQUARE:
+		return (Caps.TextureCaps & D3DPTEXTURECAPS_SQUAREONLY) == 0;
 	case EVDF_TEXTURE_NPOT:
 		return (Caps.TextureCaps & D3DPTEXTURECAPS_POW2) == 0;
 	default:

source/Irrlicht/COpenGLExtensionHandler.cpp

@@ -466,6 +466,8 @@ bool COpenGLExtensionHandler::queryFeature(E_VIDEO_DRIVER_FEATURE feature) const
 		return FeatureAvailable[IRR_ARB_fragment_program];
 	case EVDF_ARB_GLSL:
 		return (FeatureAvailable[IRR_ARB_shading_language_100]||Version>=200);
+	case EVDF_TEXTURE_NSQUARE:
+		return true; // non-square is always supported
 	case EVDF_TEXTURE_NPOT:
 		// Some ATI cards seem to have only SW support in OpenGL 2.0
 		// drivers if the extension is not exposed, so we skip this

source/Irrlicht/CSoftwareDriver.cpp

@@ -160,6 +160,7 @@ bool CSoftwareDriver::queryFeature(E_VIDEO_DRIVER_FEATURE feature) const
 	switch (feature)
 	{
 	case EVDF_RENDER_TO_TARGET:
+	case EVDF_TEXTURE_NSQUARE:
 		return FeatureEnabled[feature];
 	default:
 		return false;

source/Irrlicht/CSoftwareDriver2.cpp

@@ -293,6 +293,7 @@ bool CBurningVideoDriver::queryFeature(E_VIDEO_DRIVER_FEATURE feature) const
 	case EVDF_RENDER_TO_TARGET:
 	case EVDF_MULTITEXTURE:
 	case EVDF_HARDWARE_TL:
+	case EVDF_TEXTURE_NSQUARE:
 		return true;
 
 	default: