Update validation for GL_COMBINE.

src/OpenGL/libGLES_CM/Context.cpp

@@ -2023,6 +2023,16 @@ void Context::setTextureEnvMode(GLenum texEnvMode)
 	mState.textureUnit[mState.activeSampler].environmentMode = texEnvMode;
 }
 
+void Context::setCombineRGB(GLenum combineRGB)
+{
+	mState.textureUnit[mState.activeSampler].combineRGB = combineRGB;
+}
+
+void Context::setCombineAlpha(GLenum combineAlpha)
+{
+	mState.textureUnit[mState.activeSampler].combineAlpha = combineAlpha;
+}
+
 void Context::applyTexture(int index, Texture *baseTexture)
 {
 	sw::Resource *resource = 0;

src/OpenGL/libGLES_CM/Context.h

@@ -351,6 +351,8 @@ public:
 	unsigned int getActiveTexture() const;
 
 	void setTextureEnvMode(GLenum texEnvMode);
+	void setCombineRGB(GLenum combineRGB);
+	void setCombineAlpha(GLenum combineAlpha);
 
     void setLineWidth(GLfloat width);
 

src/OpenGL/libGLES_CM/libGLES_CM.cpp

@@ -3141,36 +3141,35 @@ void TexEnvi(GLenum target, GLenum pname, GLint param)
 				switch((GLenum)param)
 				{
 				case GL_REPLACE:
-					UNIMPLEMENTED();
-					break;
 				case GL_MODULATE:
-					UNIMPLEMENTED();
-					break;
 				case GL_ADD:
-					context->setTextureEnvMode((GLenum)param);
-					break;
 				case GL_ADD_SIGNED:
-					UNIMPLEMENTED();
-					break;
 				case GL_INTERPOLATE:
-					UNIMPLEMENTED();
-					break;
 				case GL_SUBTRACT:
-					UNIMPLEMENTED();
-					break;
 				case GL_DOT3_RGB:
-					UNIMPLEMENTED();
-					break;
 				case GL_DOT3_RGBA:
-					UNIMPLEMENTED();
 					break;
 				default:
 					error(GL_INVALID_ENUM);
 				}
 
+				context->setCombineRGB((GLenum)param);
 				break;
 			case GL_COMBINE_ALPHA:
-				UNIMPLEMENTED();
+				switch((GLenum)param)
+				{
+				case GL_REPLACE:
+				case GL_MODULATE:
+				case GL_ADD:
+				case GL_ADD_SIGNED:
+				case GL_INTERPOLATE:
+				case GL_SUBTRACT:
+					break;
+				default:
+					error(GL_INVALID_ENUM);
+				}
+
+				context->setCombineAlpha((GLenum)param);
 				break;
 			case GL_RGB_SCALE:
 				UNIMPLEMENTED();
@@ -3178,6 +3177,24 @@ void TexEnvi(GLenum target, GLenum pname, GLint param)
 			case GL_ALPHA_SCALE:
 				UNIMPLEMENTED();
 				break;
+			case GL_OPERAND0_RGB:
+				UNIMPLEMENTED();
+				break;
+			case GL_OPERAND1_RGB:
+				UNIMPLEMENTED();
+				break;
+			case GL_OPERAND2_RGB:
+				UNIMPLEMENTED();
+				break;
+			case GL_OPERAND0_ALPHA:
+				UNIMPLEMENTED();
+				break;
+			case GL_OPERAND1_ALPHA:
+				UNIMPLEMENTED();
+				break;
+			case GL_OPERAND2_ALPHA:
+				UNIMPLEMENTED();
+				break;
 			default:
 				return error(GL_INVALID_ENUM);
 			}