DriverDetails: Add bug for broken gl_ClipDistance on i965.

Source/Core/VideoBackends/OGL/Render.cpp

@@ -482,7 +482,8 @@ Renderer::Renderer()
       GLExtensions::Supports("GL_ARB_shading_language_420pack");
 
   // Clip distance support is useless without a method to clamp the depth range
-  g_Config.backend_info.bSupportsDepthClamp = GLExtensions::Supports("GL_ARB_depth_clamp");
+  g_Config.backend_info.bSupportsDepthClamp = GLExtensions::Supports("GL_ARB_depth_clamp") &&
+    !DriverDetails::HasBug(DriverDetails::BUG_BROKENCLIPDISTANCE);
 
   g_ogl_config.bSupportsGLSLCache = GLExtensions::Supports("GL_ARB_get_program_binary");
   g_ogl_config.bSupportsGLPinnedMemory = GLExtensions::Supports("GL_AMD_pinned_memory");

Source/Core/VideoCommon/DriverDetails.cpp

@@ -74,6 +74,7 @@ static BugInfo m_known_bugs[] = {
     {OS_WINDOWS, VENDOR_INTEL, DRIVER_INTEL, Family::UNKNOWN, BUG_INTELBROKENBUFFERSTORAGE,
      101810.3907, 101810.3960, true},
     {OS_ALL, VENDOR_ATI, DRIVER_ATI, Family::UNKNOWN, BUG_SLOWGETBUFFERSUBDATA, -1.0, -1.0, true},
+    {OS_ALL, VENDOR_MESA, DRIVER_I965, Family::UNKNOWN, BUG_BROKENCLIPDISTANCE, -1.0, -1.0, true},
 };
 
 static std::map<Bug, BugInfo> m_bugs;

Source/Core/VideoCommon/DriverDetails.h

@@ -204,6 +204,14 @@ enum Bug
   // GPU memory to system memory. Use glMapBufferRange for BBox reads on AMD, and glGetBufferSubData
   // everywhere else.
   BUG_SLOWGETBUFFERSUBDATA,
+
+  // Bug: Broken lines in geometry shaders when writing to gl_ClipDistance
+  // Affected Devices: Mesa i965
+  // Started Version: -1
+  // Ended Version: -1
+  // Mesa hasn't tested geometry shaders on i965 with user-defined clipping planes.
+  // Causes misrenderings on a large amount of things that draw lines.
+  BUG_BROKENCLIPDISTANCE,
 };
 
 // Initializes our internal vendor, device family, and driver version