Slightly change my last commit with sorens idea of using CG_VERSION_NUM instead.

For everyone having black screens on Windows: Try switching off MSAA, it seems to be broken (at least for me)

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5832 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Plugins/Plugin_VideoOGL/Src/PixelShaderCache.cpp

@@ -96,7 +96,7 @@ void PixelShaderCache::Init()
 	s_displayCompileAlert = true;
 
 	glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB, (GLint *)&s_nMaxPixelInstructions);
-#ifdef __linux__
+#if CG_VERSION_NUM == 2100
 	if (strstr((const char*)glGetString(GL_VENDOR), "ATI") != NULL)
 	{
 		s_nMaxPixelInstructions = 4096;

Source/Plugins/Plugin_VideoOGL/Src/Render.cpp

@@ -403,7 +403,7 @@ bool Renderer::Init()
 
 	g_cgvProf = cgGLGetLatestProfile(CG_GL_VERTEX);
 	g_cgfProf = cgGLGetLatestProfile(CG_GL_FRAGMENT);
-#ifdef __linux__ 
+#if CG_VERSION_NUM == 2100
 	// A bug was introduced in Cg2.1's handling of very large profile option values
 	// so this will not work on ATI. ATI returns MAXINT = 2147483647 (0x7fffffff)
 	// which is correct in OpenGL but Cg fails to handle it properly. As a result

Source/Plugins/Plugin_VideoOGL/Src/VertexShaderCache.cpp

@@ -112,7 +112,7 @@ void VertexShaderCache::Init()
 	s_displayCompileAlert = true;
 
 	glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB, (GLint *)&s_nMaxVertexInstructions);		
-#ifdef __linux__
+#if CG_VERSION_NUM == 2100
 	if (strstr((const char*)glGetString(GL_VENDOR), "ATI") != NULL)
 	{
 		s_nMaxVertexInstructions = 4096;