Fix indentation and disabling float texture formats where not supported. This...

Fix indentation and disabling float texture formats where not supported. This will probably need some proper transformations instead on those systems.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@2434 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/COpenGLTexture.cpp

@@ -99,6 +99,7 @@ ECOLOR_FORMAT COpenGLTexture::getBestColorFormat(ECOLOR_FORMAT format)
 			if (Driver->getTextureCreationFlag(ETCF_ALWAYS_16_BIT) ||
 					Driver->getTextureCreationFlag(ETCF_OPTIMIZED_FOR_SPEED))
 				destFormat = ECF_A1R5G5B5;
+		default:
 		break;
 	}
 	if (Driver->getTextureCreationFlag(ETCF_NO_ALPHA_CHANNEL))
@@ -496,66 +497,93 @@ GLint COpenGLFBOTexture::getOpenGLFormatAndParametersFromColorFormat(ECOLOR_FORM
 				GLenum& colorformat,
 				GLenum& type)
 {
+	// default
+	filtering = GL_LINEAR;
+	colorformat = GL_RGBA;
+	type = GL_UNSIGNED_BYTE;
+
 	switch(format)
 	{
 		// Floating Point texture formats. Thanks to Patryk "Nadro" Nadrowski.
 		case ECF_R16F:
 		{
+#ifdef GL_ARB_texture_float
 			filtering = GL_NEAREST;
 			colorformat = GL_RED;
 			type = GL_FLOAT;
 
 			return GL_RGB16F_ARB;
+#else
+			return GL_RGB8;
+#endif
 		}
 		case ECF_G16R16F:
 		{
+#ifdef GL_ARB_texture_float
 			// We haven't got support for this type specifically, so we should use RGB for a close match.
 			filtering = GL_NEAREST;
 			colorformat = GL_RGB;
 			type = GL_FLOAT;
 
 			return GL_RGB16F_ARB;
+#else
+			return GL_RGB8;
+#endif
 		}
 		case ECF_A16B16G16R16F:
 		{
+#ifdef GL_ARB_texture_float
 			filtering = GL_NEAREST;
 			colorformat = GL_RGBA;
 			type = GL_FLOAT;
 
 			return GL_RGBA16F_ARB;
+#else
+			return GL_RGBA8;
+#endif
 		}
 		case ECF_R32F:
 		{
+#ifdef GL_ARB_texture_float
 			filtering = GL_NEAREST;
 			colorformat = GL_RED;
 			type = GL_FLOAT;
 
 			return GL_RGB32F_ARB;
+#else
+			return GL_RGB8;
+#endif
 		}
 		case ECF_G32R32F:
 		{
+#ifdef GL_ARB_texture_float
 			// We haven't got support for this type specifically, so we should use RGB for a close match.
 			filtering = GL_NEAREST;
 			colorformat = GL_RGB;
 			type = GL_FLOAT;
 
 			return GL_RGB32F_ARB;
+#else
+			return GL_RGB8;
+#endif
 		}
 		case ECF_A32B32G32R32F:
 		{
+#ifdef GL_ARB_texture_float
 			filtering = GL_NEAREST;
 			colorformat = GL_RGBA;
 			type = GL_FLOAT;
 
 			return GL_RGBA32F_ARB;
+#else
+			return GL_RGBA8;
+#endif
 		}
-   }
-
-   filtering = GL_LINEAR;
-   colorformat = GL_RGBA;
-   type = GL_UNSIGNED_BYTE;
-
+		default:
+		{
 			return GL_RGBA8;
+		}
+	}
 }