Merge branch 'ANGLE-rollback'

This resolves #624

Note: Cherry-picked some fixes on top of the ANGLE version that we want to keep.

1 files changed, 629 insertions, 960 deletions

diff --git a/gfx/angle/src/libANGLE/renderer/d3d/d3d11/renderer11_utils.cpp b/gfx/angle/src/libANGLE/renderer/d3d/d3d11/renderer11_utils.cpp
index 5bb51feca..f7548c4ee 100755
--- a/gfx/angle/src/libANGLE/renderer/d3d/d3d11/renderer11_utils.cpp
+++ b/gfx/angle/src/libANGLE/renderer/d3d/d3d11/renderer11_utils.cpp
@@ -22,13 +22,219 @@
 #include "libANGLE/renderer/d3d/d3d11/texture_format_table.h"
 #include "libANGLE/renderer/d3d/FramebufferD3D.h"
 #include "libANGLE/renderer/d3d/WorkaroundsD3D.h"
-#include "libANGLE/renderer/driver_utils.h"
 
 namespace rx
 {
 
+namespace gl_d3d11
+{
+
+D3D11_BLEND ConvertBlendFunc(GLenum glBlend, bool isAlpha)
+{
+    D3D11_BLEND d3dBlend = D3D11_BLEND_ZERO;
+
+    switch (glBlend)
+    {
+      case GL_ZERO:                     d3dBlend = D3D11_BLEND_ZERO;                break;
+      case GL_ONE:                      d3dBlend = D3D11_BLEND_ONE;                 break;
+      case GL_SRC_COLOR:                d3dBlend = (isAlpha ? D3D11_BLEND_SRC_ALPHA : D3D11_BLEND_SRC_COLOR);           break;
+      case GL_ONE_MINUS_SRC_COLOR:      d3dBlend = (isAlpha ? D3D11_BLEND_INV_SRC_ALPHA : D3D11_BLEND_INV_SRC_COLOR);   break;
+      case GL_DST_COLOR:                d3dBlend = (isAlpha ? D3D11_BLEND_DEST_ALPHA : D3D11_BLEND_DEST_COLOR);         break;
+      case GL_ONE_MINUS_DST_COLOR:      d3dBlend = (isAlpha ? D3D11_BLEND_INV_DEST_ALPHA : D3D11_BLEND_INV_DEST_COLOR); break;
+      case GL_SRC_ALPHA:                d3dBlend = D3D11_BLEND_SRC_ALPHA;           break;
+      case GL_ONE_MINUS_SRC_ALPHA:      d3dBlend = D3D11_BLEND_INV_SRC_ALPHA;       break;
+      case GL_DST_ALPHA:                d3dBlend = D3D11_BLEND_DEST_ALPHA;          break;
+      case GL_ONE_MINUS_DST_ALPHA:      d3dBlend = D3D11_BLEND_INV_DEST_ALPHA;      break;
+      case GL_CONSTANT_COLOR:           d3dBlend = D3D11_BLEND_BLEND_FACTOR;        break;
+      case GL_ONE_MINUS_CONSTANT_COLOR: d3dBlend = D3D11_BLEND_INV_BLEND_FACTOR;    break;
+      case GL_CONSTANT_ALPHA:           d3dBlend = D3D11_BLEND_BLEND_FACTOR;        break;
+      case GL_ONE_MINUS_CONSTANT_ALPHA: d3dBlend = D3D11_BLEND_INV_BLEND_FACTOR;    break;
+      case GL_SRC_ALPHA_SATURATE:       d3dBlend = D3D11_BLEND_SRC_ALPHA_SAT;       break;
+      default: UNREACHABLE();
+    }
+
+    return d3dBlend;
+}
+
+D3D11_BLEND_OP ConvertBlendOp(GLenum glBlendOp)
+{
+    D3D11_BLEND_OP d3dBlendOp = D3D11_BLEND_OP_ADD;
+
+    switch (glBlendOp)
+    {
+      case GL_FUNC_ADD:              d3dBlendOp = D3D11_BLEND_OP_ADD;           break;
+      case GL_FUNC_SUBTRACT:         d3dBlendOp = D3D11_BLEND_OP_SUBTRACT;      break;
+      case GL_FUNC_REVERSE_SUBTRACT: d3dBlendOp = D3D11_BLEND_OP_REV_SUBTRACT;  break;
+      case GL_MIN:                   d3dBlendOp = D3D11_BLEND_OP_MIN;           break;
+      case GL_MAX:                   d3dBlendOp = D3D11_BLEND_OP_MAX;           break;
+      default: UNREACHABLE();
+    }
+
+    return d3dBlendOp;
+}
+
+UINT8 ConvertColorMask(bool red, bool green, bool blue, bool alpha)
+{
+    UINT8 mask = 0;
+    if (red)
+    {
+        mask |= D3D11_COLOR_WRITE_ENABLE_RED;
+    }
+    if (green)
+    {
+        mask |= D3D11_COLOR_WRITE_ENABLE_GREEN;
+    }
+    if (blue)
+    {
+        mask |= D3D11_COLOR_WRITE_ENABLE_BLUE;
+    }
+    if (alpha)
+    {
+        mask |= D3D11_COLOR_WRITE_ENABLE_ALPHA;
+    }
+    return mask;
+}
+
+D3D11_CULL_MODE ConvertCullMode(bool cullEnabled, GLenum cullMode)
+{
+    D3D11_CULL_MODE cull = D3D11_CULL_NONE;
+
+    if (cullEnabled)
+    {
+        switch (cullMode)
+        {
+          case GL_FRONT:            cull = D3D11_CULL_FRONT;    break;
+          case GL_BACK:             cull = D3D11_CULL_BACK;     break;
+          case GL_FRONT_AND_BACK:   cull = D3D11_CULL_NONE;     break;
+          default: UNREACHABLE();
+        }
+    }
+    else
+    {
+        cull = D3D11_CULL_NONE;
+    }
+
+    return cull;
+}
+
+D3D11_COMPARISON_FUNC ConvertComparison(GLenum comparison)
+{
+    D3D11_COMPARISON_FUNC d3dComp = D3D11_COMPARISON_NEVER;
+    switch (comparison)
+    {
+      case GL_NEVER:    d3dComp = D3D11_COMPARISON_NEVER;           break;
+      case GL_ALWAYS:   d3dComp = D3D11_COMPARISON_ALWAYS;          break;
+      case GL_LESS:     d3dComp = D3D11_COMPARISON_LESS;            break;
+      case GL_LEQUAL:   d3dComp = D3D11_COMPARISON_LESS_EQUAL;      break;
+      case GL_EQUAL:    d3dComp = D3D11_COMPARISON_EQUAL;           break;
+      case GL_GREATER:  d3dComp = D3D11_COMPARISON_GREATER;         break;
+      case GL_GEQUAL:   d3dComp = D3D11_COMPARISON_GREATER_EQUAL;   break;
+      case GL_NOTEQUAL: d3dComp = D3D11_COMPARISON_NOT_EQUAL;       break;
+      default: UNREACHABLE();
+    }
+
+    return d3dComp;
+}
+
+D3D11_DEPTH_WRITE_MASK ConvertDepthMask(bool depthWriteEnabled)
+{
+    return depthWriteEnabled ? D3D11_DEPTH_WRITE_MASK_ALL : D3D11_DEPTH_WRITE_MASK_ZERO;
+}
+
+UINT8 ConvertStencilMask(GLuint stencilmask)
+{
+    return static_cast<UINT8>(stencilmask);
+}
+
+D3D11_STENCIL_OP ConvertStencilOp(GLenum stencilOp)
+{
+    D3D11_STENCIL_OP d3dStencilOp = D3D11_STENCIL_OP_KEEP;
+
+    switch (stencilOp)
+    {
+      case GL_ZERO:      d3dStencilOp = D3D11_STENCIL_OP_ZERO;      break;
+      case GL_KEEP:      d3dStencilOp = D3D11_STENCIL_OP_KEEP;      break;
+      case GL_REPLACE:   d3dStencilOp = D3D11_STENCIL_OP_REPLACE;   break;
+      case GL_INCR:      d3dStencilOp = D3D11_STENCIL_OP_INCR_SAT;  break;
+      case GL_DECR:      d3dStencilOp = D3D11_STENCIL_OP_DECR_SAT;  break;
+      case GL_INVERT:    d3dStencilOp = D3D11_STENCIL_OP_INVERT;    break;
+      case GL_INCR_WRAP: d3dStencilOp = D3D11_STENCIL_OP_INCR;      break;
+      case GL_DECR_WRAP: d3dStencilOp = D3D11_STENCIL_OP_DECR;      break;
+      default: UNREACHABLE();
+    }
+
+    return d3dStencilOp;
+}
+
+D3D11_FILTER ConvertFilter(GLenum minFilter, GLenum magFilter, float maxAnisotropy, GLenum comparisonMode)
+{
+    bool comparison = comparisonMode != GL_NONE;
+
+    if (maxAnisotropy > 1.0f)
+    {
+        return D3D11_ENCODE_ANISOTROPIC_FILTER(static_cast<D3D11_COMPARISON_FUNC>(comparison));
+    }
+    else
+    {
+        D3D11_FILTER_TYPE dxMin = D3D11_FILTER_TYPE_POINT;
+        D3D11_FILTER_TYPE dxMip = D3D11_FILTER_TYPE_POINT;
+        switch (minFilter)
+        {
+          case GL_NEAREST:                dxMin = D3D11_FILTER_TYPE_POINT;  dxMip = D3D11_FILTER_TYPE_POINT;  break;
+          case GL_LINEAR:                 dxMin = D3D11_FILTER_TYPE_LINEAR; dxMip = D3D11_FILTER_TYPE_POINT;  break;
+          case GL_NEAREST_MIPMAP_NEAREST: dxMin = D3D11_FILTER_TYPE_POINT;  dxMip = D3D11_FILTER_TYPE_POINT;  break;
+          case GL_LINEAR_MIPMAP_NEAREST:  dxMin = D3D11_FILTER_TYPE_LINEAR; dxMip = D3D11_FILTER_TYPE_POINT;  break;
+          case GL_NEAREST_MIPMAP_LINEAR:  dxMin = D3D11_FILTER_TYPE_POINT;  dxMip = D3D11_FILTER_TYPE_LINEAR; break;
+          case GL_LINEAR_MIPMAP_LINEAR:   dxMin = D3D11_FILTER_TYPE_LINEAR; dxMip = D3D11_FILTER_TYPE_LINEAR; break;
+          default:                        UNREACHABLE();
+        }
+
+        D3D11_FILTER_TYPE dxMag = D3D11_FILTER_TYPE_POINT;
+        switch (magFilter)
+        {
+          case GL_NEAREST: dxMag = D3D11_FILTER_TYPE_POINT;  break;
+          case GL_LINEAR:  dxMag = D3D11_FILTER_TYPE_LINEAR; break;
+          default:         UNREACHABLE();
+        }
+
+        return D3D11_ENCODE_BASIC_FILTER(dxMin, dxMag, dxMip, static_cast<D3D11_COMPARISON_FUNC>(comparison));
+    }
+}
+
+D3D11_TEXTURE_ADDRESS_MODE ConvertTextureWrap(GLenum wrap)
+{
+    switch (wrap)
+    {
+      case GL_REPEAT:          return D3D11_TEXTURE_ADDRESS_WRAP;
+      case GL_CLAMP_TO_EDGE:   return D3D11_TEXTURE_ADDRESS_CLAMP;
+      case GL_MIRRORED_REPEAT: return D3D11_TEXTURE_ADDRESS_MIRROR;
+      default:                 UNREACHABLE();
+    }
+
+    return D3D11_TEXTURE_ADDRESS_WRAP;
+}
+
+D3D11_QUERY ConvertQueryType(GLenum queryType)
+{
+    switch (queryType)
+    {
+      case GL_ANY_SAMPLES_PASSED_EXT:
+      case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT:   return D3D11_QUERY_OCCLUSION;
+      case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN: return D3D11_QUERY_SO_STATISTICS;
+      case GL_TIME_ELAPSED_EXT:
+          // Two internal queries are also created for begin/end timestamps
+          return D3D11_QUERY_TIMESTAMP_DISJOINT;
+      case GL_COMMANDS_COMPLETED_CHROMIUM:
+          return D3D11_QUERY_EVENT;
+      default: UNREACHABLE();                        return D3D11_QUERY_EVENT;
+    }
+}
+
+}  // namespace gl_d3d11
+
 namespace d3d11_gl
 {
+
 namespace
 {
 
@@ -37,7 +243,8 @@ class DXGISupportHelper : angle::NonCopyable
 {
   public:
     DXGISupportHelper(ID3D11Device *device, D3D_FEATURE_LEVEL featureLevel)
-        : mDevice(device), mFeatureLevel(featureLevel)
+        : mDevice(device),
+          mFeatureLevel(featureLevel)
     {
     }
 
@@ -72,10 +279,72 @@ class DXGISupportHelper : angle::NonCopyable
     D3D_FEATURE_LEVEL mFeatureLevel;
 };
 
-gl::TextureCaps GenerateTextureFormatCaps(GLint maxClientVersion,
-                                          GLenum internalFormat,
-                                          ID3D11Device *device,
-                                          const Renderer11DeviceCaps &renderer11DeviceCaps)
+} // anonymous namespace
+
+unsigned int GetReservedVertexUniformVectors(D3D_FEATURE_LEVEL featureLevel)
+{
+    switch (featureLevel)
+    {
+        case D3D_FEATURE_LEVEL_11_1:
+        case D3D_FEATURE_LEVEL_11_0:
+        case D3D_FEATURE_LEVEL_10_1:
+        case D3D_FEATURE_LEVEL_10_0:
+            return 0;
+
+        case D3D_FEATURE_LEVEL_9_3:
+        case D3D_FEATURE_LEVEL_9_2:
+        case D3D_FEATURE_LEVEL_9_1:
+            return 3;  // dx_ViewAdjust, dx_ViewCoords and dx_ViewScale
+
+        default:
+            UNREACHABLE();
+            return 0;
+    }
+}
+
+unsigned int GetReservedFragmentUniformVectors(D3D_FEATURE_LEVEL featureLevel)
+{
+    switch (featureLevel)
+    {
+        case D3D_FEATURE_LEVEL_11_1:
+        case D3D_FEATURE_LEVEL_11_0:
+        case D3D_FEATURE_LEVEL_10_1:
+        case D3D_FEATURE_LEVEL_10_0:
+            return 0;
+
+        case D3D_FEATURE_LEVEL_9_3:
+        case D3D_FEATURE_LEVEL_9_2:
+        case D3D_FEATURE_LEVEL_9_1:
+            return 3;
+
+        default:
+            UNREACHABLE();
+            return 0;
+    }
+}
+
+GLint GetMaximumClientVersion(D3D_FEATURE_LEVEL featureLevel)
+{
+    switch (featureLevel)
+    {
+        case D3D_FEATURE_LEVEL_11_1:
+        case D3D_FEATURE_LEVEL_11_0:
+        case D3D_FEATURE_LEVEL_10_1:
+            return 3;
+
+        case D3D_FEATURE_LEVEL_10_0:
+        case D3D_FEATURE_LEVEL_9_3:
+        case D3D_FEATURE_LEVEL_9_2:
+        case D3D_FEATURE_LEVEL_9_1:
+            return 2;
+
+        default:
+            UNREACHABLE();
+            return 0;
+    }
+}
+
+static gl::TextureCaps GenerateTextureFormatCaps(GLint maxClientVersion, GLenum internalFormat, ID3D11Device *device, const Renderer11DeviceCaps &renderer11DeviceCaps)
 {
     gl::TextureCaps textureCaps;
 
@@ -136,911 +405,661 @@ gl::TextureCaps GenerateTextureFormatCaps(GLint maxClientVersion,
     return textureCaps;
 }
 
-bool GetNPOTTextureSupport(D3D_FEATURE_LEVEL featureLevel)
+static bool GetNPOTTextureSupport(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return true;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0:
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return true;
 
         // From http://msdn.microsoft.com/en-us/library/windows/desktop/ff476876.aspx
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return false;
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return false;
 
-        default:
-            UNREACHABLE();
-            return false;
+      default: UNREACHABLE();      return false;
     }
 }
 
-float GetMaximumAnisotropy(D3D_FEATURE_LEVEL featureLevel)
+static float GetMaximumAnisotropy(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_MAX_MAXANISOTROPY;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return D3D11_MAX_MAXANISOTROPY;
 
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D10_MAX_MAXANISOTROPY;
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return D3D10_MAX_MAXANISOTROPY;
 
         // From http://msdn.microsoft.com/en-us/library/windows/desktop/ff476876.aspx
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-            return 16;
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:  return 16;
 
-        case D3D_FEATURE_LEVEL_9_1:
-            return D3D_FL9_1_DEFAULT_MAX_ANISOTROPY;
+      case D3D_FEATURE_LEVEL_9_1:  return D3D_FL9_1_DEFAULT_MAX_ANISOTROPY;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-bool GetOcclusionQuerySupport(D3D_FEATURE_LEVEL featureLevel)
+static bool GetOcclusionQuerySupport(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return true;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0:
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return true;
 
-        // From http://msdn.microsoft.com/en-us/library/windows/desktop/ff476150.aspx
-        // ID3D11Device::CreateQuery
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-            return true;
-        case D3D_FEATURE_LEVEL_9_1:
-            return false;
+        // From http://msdn.microsoft.com/en-us/library/windows/desktop/ff476150.aspx ID3D11Device::CreateQuery
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:  return true;
+      case D3D_FEATURE_LEVEL_9_1:  return false;
 
-        default:
-            UNREACHABLE();
-            return false;
+      default: UNREACHABLE();      return false;
     }
 }
 
-bool GetEventQuerySupport(D3D_FEATURE_LEVEL featureLevel)
+static bool GetEventQuerySupport(D3D_FEATURE_LEVEL featureLevel)
 {
-    // From http://msdn.microsoft.com/en-us/library/windows/desktop/ff476150.aspx
-    // ID3D11Device::CreateQuery
+    // From http://msdn.microsoft.com/en-us/library/windows/desktop/ff476150.aspx ID3D11Device::CreateQuery
 
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return true;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0:
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0:
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return true;
 
-        default:
-            UNREACHABLE();
-            return false;
+      default: UNREACHABLE();      return false;
     }
 }
 
-bool GetInstancingSupport(D3D_FEATURE_LEVEL featureLevel)
+static bool GetInstancingSupport(D3D_FEATURE_LEVEL featureLevel)
 {
-    // From http://msdn.microsoft.com/en-us/library/windows/desktop/ff476150.aspx
-    // ID3D11Device::CreateInputLayout
+    // From http://msdn.microsoft.com/en-us/library/windows/desktop/ff476150.aspx ID3D11Device::CreateInputLayout
 
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return true;
-
-        // Feature Level 9_3 supports instancing, but slot 0 in the input layout must not be
-        // instanced.
-        // D3D9 has a similar restriction, where stream 0 must not be instanced.
-        // This restriction can be worked around by remapping any non-instanced slot to slot
-        // 0.
-        // This works because HLSL uses shader semantics to match the vertex inputs to the
-        // elements in the input layout, rather than the slots.
-        // Note that we only support instancing via ANGLE_instanced_array on 9_3, since 9_3
-        // doesn't support OpenGL ES 3.0
-        case D3D_FEATURE_LEVEL_9_3:
-            return true;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0:
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return true;
 
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return false;
+      // Feature Level 9_3 supports instancing, but slot 0 in the input layout must not be instanced.
+      // D3D9 has a similar restriction, where stream 0 must not be instanced.
+      // This restriction can be worked around by remapping any non-instanced slot to slot 0.
+      // This works because HLSL uses shader semantics to match the vertex inputs to the elements in the input layout, rather than the slots.
+      // Note that we only support instancing via ANGLE_instanced_array on 9_3, since 9_3 doesn't support OpenGL ES 3.0
+      case D3D_FEATURE_LEVEL_9_3:  return true;
 
-        default:
-            UNREACHABLE();
-            return false;
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return false;
+
+      default: UNREACHABLE();      return false;
     }
 }
 
-bool GetFramebufferMultisampleSupport(D3D_FEATURE_LEVEL featureLevel)
+static bool GetFramebufferMultisampleSupport(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return true;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0:
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return true;
 
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return false;
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return false;
 
-        default:
-            UNREACHABLE();
-            return false;
+      default: UNREACHABLE();      return false;
     }
 }
 
-bool GetFramebufferBlitSupport(D3D_FEATURE_LEVEL featureLevel)
+static bool GetFramebufferBlitSupport(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return true;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0:
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return true;
 
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return false;
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return false;
 
-        default:
-            UNREACHABLE();
-            return false;
+      default: UNREACHABLE();      return false;
     }
 }
 
-bool GetDerivativeInstructionSupport(D3D_FEATURE_LEVEL featureLevel)
+static bool GetDerivativeInstructionSupport(D3D_FEATURE_LEVEL featureLevel)
 {
-    // http://msdn.microsoft.com/en-us/library/windows/desktop/bb509588.aspx states that
-    // shader model
+    // http://msdn.microsoft.com/en-us/library/windows/desktop/bb509588.aspx states that shader model
     // ps_2_x is required for the ddx (and other derivative functions).
 
-    // http://msdn.microsoft.com/en-us/library/windows/desktop/ff476876.aspx states that
-    // feature level
+    // http://msdn.microsoft.com/en-us/library/windows/desktop/ff476876.aspx states that feature level
     // 9.3 supports shader model ps_2_x.
 
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-        case D3D_FEATURE_LEVEL_9_3:
-            return true;
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return false;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0:
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0:
+      case D3D_FEATURE_LEVEL_9_3:  return true;
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return false;
 
-        default:
-            UNREACHABLE();
-            return false;
+      default: UNREACHABLE();      return false;
     }
 }
 
-bool GetShaderTextureLODSupport(D3D_FEATURE_LEVEL featureLevel)
+static bool GetShaderTextureLODSupport(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return true;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0:
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return true;
 
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return false;
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return false;
 
-        default:
-            UNREACHABLE();
-            return false;
+      default: UNREACHABLE();      return false;
     }
 }
 
-size_t GetMaximumSimultaneousRenderTargets(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximumSimultaneousRenderTargets(D3D_FEATURE_LEVEL featureLevel)
 {
-    // From http://msdn.microsoft.com/en-us/library/windows/desktop/ff476150.aspx
-    // ID3D11Device::CreateInputLayout
+    // From http://msdn.microsoft.com/en-us/library/windows/desktop/ff476150.aspx ID3D11Device::CreateInputLayout
 
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_SIMULTANEOUS_RENDER_TARGET_COUNT;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return D3D11_SIMULTANEOUS_RENDER_TARGET_COUNT;
 
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D10_SIMULTANEOUS_RENDER_TARGET_COUNT;
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return D3D10_SIMULTANEOUS_RENDER_TARGET_COUNT;
 
-        case D3D_FEATURE_LEVEL_9_3:
-            return D3D_FL9_3_SIMULTANEOUS_RENDER_TARGET_COUNT;
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return D3D_FL9_1_SIMULTANEOUS_RENDER_TARGET_COUNT;
+      case D3D_FEATURE_LEVEL_9_3:  return D3D_FL9_3_SIMULTANEOUS_RENDER_TARGET_COUNT;
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return D3D_FL9_1_SIMULTANEOUS_RENDER_TARGET_COUNT;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximum2DTextureSize(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximum2DTextureSize(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return D3D11_REQ_TEXTURE2D_U_OR_V_DIMENSION;
 
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D10_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return D3D10_REQ_TEXTURE2D_U_OR_V_DIMENSION;
 
-        case D3D_FEATURE_LEVEL_9_3:
-            return D3D_FL9_3_REQ_TEXTURE2D_U_OR_V_DIMENSION;
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return D3D_FL9_1_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+      case D3D_FEATURE_LEVEL_9_3:  return D3D_FL9_3_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return D3D_FL9_1_REQ_TEXTURE2D_U_OR_V_DIMENSION;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximumCubeMapTextureSize(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximumCubeMapTextureSize(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_REQ_TEXTURECUBE_DIMENSION;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return D3D11_REQ_TEXTURECUBE_DIMENSION;
 
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D10_REQ_TEXTURECUBE_DIMENSION;
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return D3D10_REQ_TEXTURECUBE_DIMENSION;
 
-        case D3D_FEATURE_LEVEL_9_3:
-            return D3D_FL9_3_REQ_TEXTURECUBE_DIMENSION;
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return D3D_FL9_1_REQ_TEXTURECUBE_DIMENSION;
+      case D3D_FEATURE_LEVEL_9_3:  return D3D_FL9_3_REQ_TEXTURECUBE_DIMENSION;
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return D3D_FL9_1_REQ_TEXTURECUBE_DIMENSION;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximum2DTextureArraySize(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximum2DTextureArraySize(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_REQ_TEXTURE2D_ARRAY_AXIS_DIMENSION;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return D3D11_REQ_TEXTURE2D_ARRAY_AXIS_DIMENSION;
 
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D10_REQ_TEXTURE2D_ARRAY_AXIS_DIMENSION;
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return D3D10_REQ_TEXTURE2D_ARRAY_AXIS_DIMENSION;
 
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 0;
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return 0;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximum3DTextureSize(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximum3DTextureSize(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_REQ_TEXTURE3D_U_V_OR_W_DIMENSION;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return D3D11_REQ_TEXTURE3D_U_V_OR_W_DIMENSION;
 
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D10_REQ_TEXTURE3D_U_V_OR_W_DIMENSION;
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return D3D10_REQ_TEXTURE3D_U_V_OR_W_DIMENSION;
 
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return D3D_FL9_1_REQ_TEXTURE3D_U_V_OR_W_DIMENSION;
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return D3D_FL9_1_REQ_TEXTURE3D_U_V_OR_W_DIMENSION;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximumViewportSize(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximumViewportSize(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_VIEWPORT_BOUNDS_MAX;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return D3D11_VIEWPORT_BOUNDS_MAX;
 
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D10_VIEWPORT_BOUNDS_MAX;
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return D3D10_VIEWPORT_BOUNDS_MAX;
 
-        // No constants for D3D11 Feature Level 9 viewport size limits, use the maximum
-        // texture sizes
-        case D3D_FEATURE_LEVEL_9_3:
-            return D3D_FL9_3_REQ_TEXTURE2D_U_OR_V_DIMENSION;
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return D3D_FL9_1_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+      // No constants for D3D11 Feature Level 9 viewport size limits, use the maximum texture sizes
+      case D3D_FEATURE_LEVEL_9_3:  return D3D_FL9_3_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return D3D_FL9_1_REQ_TEXTURE2D_U_OR_V_DIMENSION;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximumDrawIndexedIndexCount(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximumDrawIndexedIndexCount(D3D_FEATURE_LEVEL featureLevel)
 {
-    // D3D11 allows up to 2^32 elements, but we report max signed int for convenience since
-    // that's what's
+    // D3D11 allows up to 2^32 elements, but we report max signed int for convenience since that's what's
     // returned from glGetInteger
-    static_assert(D3D11_REQ_DRAWINDEXED_INDEX_COUNT_2_TO_EXP == 32,
-                  "Unexpected D3D11 constant value.");
-    static_assert(D3D10_REQ_DRAWINDEXED_INDEX_COUNT_2_TO_EXP == 32,
-                  "Unexpected D3D11 constant value.");
+    static_assert(D3D11_REQ_DRAWINDEXED_INDEX_COUNT_2_TO_EXP == 32, "Unexpected D3D11 constant value.");
+    static_assert(D3D10_REQ_DRAWINDEXED_INDEX_COUNT_2_TO_EXP == 32, "Unexpected D3D11 constant value.");
 
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return std::numeric_limits<GLint>::max();
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0:
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return std::numeric_limits<GLint>::max();
 
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-            return D3D_FL9_2_IA_PRIMITIVE_MAX_COUNT;
-        case D3D_FEATURE_LEVEL_9_1:
-            return D3D_FL9_1_IA_PRIMITIVE_MAX_COUNT;
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:  return D3D_FL9_2_IA_PRIMITIVE_MAX_COUNT;
+      case D3D_FEATURE_LEVEL_9_1:  return D3D_FL9_1_IA_PRIMITIVE_MAX_COUNT;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximumDrawVertexCount(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximumDrawVertexCount(D3D_FEATURE_LEVEL featureLevel)
 {
-    // D3D11 allows up to 2^32 elements, but we report max signed int for convenience since
-    // that's what's
+    // D3D11 allows up to 2^32 elements, but we report max signed int for convenience since that's what's
     // returned from glGetInteger
     static_assert(D3D11_REQ_DRAW_VERTEX_COUNT_2_TO_EXP == 32, "Unexpected D3D11 constant value.");
     static_assert(D3D10_REQ_DRAW_VERTEX_COUNT_2_TO_EXP == 32, "Unexpected D3D11 constant value.");
 
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return std::numeric_limits<GLint>::max();
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0:
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return std::numeric_limits<GLint>::max();
 
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-            return D3D_FL9_2_IA_PRIMITIVE_MAX_COUNT;
-        case D3D_FEATURE_LEVEL_9_1:
-            return D3D_FL9_1_IA_PRIMITIVE_MAX_COUNT;
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:  return D3D_FL9_2_IA_PRIMITIVE_MAX_COUNT;
+      case D3D_FEATURE_LEVEL_9_1:  return D3D_FL9_1_IA_PRIMITIVE_MAX_COUNT;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximumVertexInputSlots(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximumVertexInputSlots(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_STANDARD_VERTEX_ELEMENT_COUNT;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return D3D11_STANDARD_VERTEX_ELEMENT_COUNT;
 
-        case D3D_FEATURE_LEVEL_10_1:
-            return D3D10_1_STANDARD_VERTEX_ELEMENT_COUNT;
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D10_STANDARD_VERTEX_ELEMENT_COUNT;
+      case D3D_FEATURE_LEVEL_10_1: return D3D10_1_STANDARD_VERTEX_ELEMENT_COUNT;
+      case D3D_FEATURE_LEVEL_10_0: return D3D10_STANDARD_VERTEX_ELEMENT_COUNT;
 
-        // From http://http://msdn.microsoft.com/en-us/library/windows/desktop/ff476876.aspx
-        // "Max Input Slots"
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 16;
+      // From http://http://msdn.microsoft.com/en-us/library/windows/desktop/ff476876.aspx "Max Input Slots"
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return 16;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximumVertexUniformVectors(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximumVertexUniformVectors(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_REQ_CONSTANT_BUFFER_ELEMENT_COUNT;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return D3D11_REQ_CONSTANT_BUFFER_ELEMENT_COUNT;
 
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D10_REQ_CONSTANT_BUFFER_ELEMENT_COUNT;
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return D3D10_REQ_CONSTANT_BUFFER_ELEMENT_COUNT;
 
-        // From http://msdn.microsoft.com/en-us/library/windows/desktop/ff476149.aspx
-        // ID3D11DeviceContext::VSSetConstantBuffers
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 255 - d3d11_gl::GetReservedVertexUniformVectors(featureLevel);
+      // From http://msdn.microsoft.com/en-us/library/windows/desktop/ff476149.aspx ID3D11DeviceContext::VSSetConstantBuffers
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:
+          return 255 - d3d11_gl::GetReservedVertexUniformVectors(featureLevel);
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximumVertexUniformBlocks(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximumVertexUniformBlocks(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_COMMONSHADER_CONSTANT_BUFFER_API_SLOT_COUNT -
-                   d3d11::RESERVED_CONSTANT_BUFFER_SLOT_COUNT;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0:
+          return D3D11_COMMONSHADER_CONSTANT_BUFFER_API_SLOT_COUNT -
+                 d3d11::RESERVED_CONSTANT_BUFFER_SLOT_COUNT;
 
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D10_COMMONSHADER_CONSTANT_BUFFER_API_SLOT_COUNT -
-                   d3d11::RESERVED_CONSTANT_BUFFER_SLOT_COUNT;
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0:
+          return D3D10_COMMONSHADER_CONSTANT_BUFFER_API_SLOT_COUNT -
+                 d3d11::RESERVED_CONSTANT_BUFFER_SLOT_COUNT;
 
-        // Uniform blocks not supported on D3D11 Feature Level 9
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 0;
+      // Uniform blocks not supported on D3D11 Feature Level 9
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return 0;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetReservedVertexOutputVectors(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetReservedVertexOutputVectors(D3D_FEATURE_LEVEL featureLevel)
 {
     // According to The OpenGL ES Shading Language specifications
     // (Language Version 1.00 section 10.16, Language Version 3.10 section 12.21)
     // built-in special variables (e.g. gl_FragCoord, or gl_PointCoord)
-    // which are statically used in the shader should be included in the variable packing
-    // algorithm.
+    // which are statically used in the shader should be included in the variable packing algorithm.
     // Therefore, we should not reserve output vectors for them.
 
     switch (featureLevel)
     {
-        // We must reserve one output vector for dx_Position.
-        // We also reserve one for gl_Position, which we unconditionally output on Feature
-        // Levels 10_0+,
-        // even if it's unused in the shader (e.g. for transform feedback). TODO: This could
-        // be improved.
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return 2;
+      // We must reserve one output vector for dx_Position.
+      // We also reserve one for gl_Position, which we unconditionally output on Feature Levels 10_0+,
+      // even if it's unused in the shader (e.g. for transform feedback). TODO: This could be improved.
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0:
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return 2;
 
-        // Just reserve dx_Position on Feature Level 9, since we don't ever need to output
-        // gl_Position.
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 1;
+      // Just reserve dx_Position on Feature Level 9, since we don't ever need to output gl_Position.
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return 1;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximumVertexOutputVectors(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximumVertexOutputVectors(D3D_FEATURE_LEVEL featureLevel)
 {
-    static_assert(gl::IMPLEMENTATION_MAX_VARYING_VECTORS == D3D11_VS_OUTPUT_REGISTER_COUNT,
-                  "Unexpected D3D11 constant value.");
+    static_assert(gl::IMPLEMENTATION_MAX_VARYING_VECTORS == D3D11_VS_OUTPUT_REGISTER_COUNT, "Unexpected D3D11 constant value.");
 
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_VS_OUTPUT_REGISTER_COUNT - GetReservedVertexOutputVectors(featureLevel);
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return D3D11_VS_OUTPUT_REGISTER_COUNT - GetReservedVertexOutputVectors(featureLevel);
 
-        case D3D_FEATURE_LEVEL_10_1:
-            return D3D10_1_VS_OUTPUT_REGISTER_COUNT - GetReservedVertexOutputVectors(featureLevel);
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D10_VS_OUTPUT_REGISTER_COUNT - GetReservedVertexOutputVectors(featureLevel);
+      case D3D_FEATURE_LEVEL_10_1: return D3D10_1_VS_OUTPUT_REGISTER_COUNT - GetReservedVertexOutputVectors(featureLevel);
+      case D3D_FEATURE_LEVEL_10_0: return D3D10_VS_OUTPUT_REGISTER_COUNT - GetReservedVertexOutputVectors(featureLevel);
 
-        // Use Shader Model 2.X limits
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 8 - GetReservedVertexOutputVectors(featureLevel);
+      // Use Shader Model 2.X limits
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return 8 - GetReservedVertexOutputVectors(featureLevel);
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximumVertexTextureUnits(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximumVertexTextureUnits(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_COMMONSHADER_SAMPLER_SLOT_COUNT;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return D3D11_COMMONSHADER_SAMPLER_SLOT_COUNT;
 
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D10_COMMONSHADER_SAMPLER_SLOT_COUNT;
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return D3D10_COMMONSHADER_SAMPLER_SLOT_COUNT;
 
-        // Vertex textures not supported on D3D11 Feature Level 9 according to
-        // http://msdn.microsoft.com/en-us/library/windows/desktop/ff476149.aspx
-        // ID3D11DeviceContext::VSSetSamplers and ID3D11DeviceContext::VSSetShaderResources
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 0;
+      // Vertex textures not supported on D3D11 Feature Level 9 according to
+      // http://msdn.microsoft.com/en-us/library/windows/desktop/ff476149.aspx
+      // ID3D11DeviceContext::VSSetSamplers and ID3D11DeviceContext::VSSetShaderResources
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return 0;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximumPixelUniformVectors(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximumPixelUniformVectors(D3D_FEATURE_LEVEL featureLevel)
 {
     // TODO(geofflang): Remove hard-coded limit once the gl-uniform-arrays test can pass
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return 1024;  // D3D11_REQ_CONSTANT_BUFFER_ELEMENT_COUNT;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return 1024; // D3D11_REQ_CONSTANT_BUFFER_ELEMENT_COUNT;
 
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return 1024;  // D3D10_REQ_CONSTANT_BUFFER_ELEMENT_COUNT;
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return 1024; // D3D10_REQ_CONSTANT_BUFFER_ELEMENT_COUNT;
 
-        // From http://msdn.microsoft.com/en-us/library/windows/desktop/ff476149.aspx
-        // ID3D11DeviceContext::PSSetConstantBuffers
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 32 - d3d11_gl::GetReservedFragmentUniformVectors(featureLevel);
+      // From http://msdn.microsoft.com/en-us/library/windows/desktop/ff476149.aspx ID3D11DeviceContext::PSSetConstantBuffers
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:
+          return 32 - d3d11_gl::GetReservedFragmentUniformVectors(featureLevel);
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximumPixelUniformBlocks(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximumPixelUniformBlocks(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_COMMONSHADER_CONSTANT_BUFFER_API_SLOT_COUNT -
-                   d3d11::RESERVED_CONSTANT_BUFFER_SLOT_COUNT;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0:
+          return D3D11_COMMONSHADER_CONSTANT_BUFFER_API_SLOT_COUNT -
+                 d3d11::RESERVED_CONSTANT_BUFFER_SLOT_COUNT;
 
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D10_COMMONSHADER_CONSTANT_BUFFER_API_SLOT_COUNT -
-                   d3d11::RESERVED_CONSTANT_BUFFER_SLOT_COUNT;
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0:
+          return D3D10_COMMONSHADER_CONSTANT_BUFFER_API_SLOT_COUNT -
+                 d3d11::RESERVED_CONSTANT_BUFFER_SLOT_COUNT;
 
-        // Uniform blocks not supported on D3D11 Feature Level 9
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 0;
+      // Uniform blocks not supported on D3D11 Feature Level 9
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return 0;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximumPixelInputVectors(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximumPixelInputVectors(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_PS_INPUT_REGISTER_COUNT - GetReservedVertexOutputVectors(featureLevel);
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return D3D11_PS_INPUT_REGISTER_COUNT - GetReservedVertexOutputVectors(featureLevel);
 
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D10_PS_INPUT_REGISTER_COUNT - GetReservedVertexOutputVectors(featureLevel);
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return D3D10_PS_INPUT_REGISTER_COUNT - GetReservedVertexOutputVectors(featureLevel);
 
-        // Use Shader Model 2.X limits
-        case D3D_FEATURE_LEVEL_9_3:
-            return 8 - GetReservedVertexOutputVectors(featureLevel);
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 8 - GetReservedVertexOutputVectors(featureLevel);
+      // Use Shader Model 2.X limits
+      case D3D_FEATURE_LEVEL_9_3:  return 8 - GetReservedVertexOutputVectors(featureLevel);
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return 8 - GetReservedVertexOutputVectors(featureLevel);
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximumPixelTextureUnits(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximumPixelTextureUnits(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_COMMONSHADER_SAMPLER_SLOT_COUNT;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return D3D11_COMMONSHADER_SAMPLER_SLOT_COUNT;
 
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D10_COMMONSHADER_SAMPLER_SLOT_COUNT;
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return D3D10_COMMONSHADER_SAMPLER_SLOT_COUNT;
 
-        // http://msdn.microsoft.com/en-us/library/windows/desktop/ff476149.aspx
-        // ID3D11DeviceContext::PSSetShaderResources
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 16;
+      // http://msdn.microsoft.com/en-us/library/windows/desktop/ff476149.aspx ID3D11DeviceContext::PSSetShaderResources
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return 16;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-int GetMinimumTexelOffset(D3D_FEATURE_LEVEL featureLevel)
+static int GetMinimumTexelOffset(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_COMMONSHADER_TEXEL_OFFSET_MAX_NEGATIVE;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return D3D11_COMMONSHADER_TEXEL_OFFSET_MAX_NEGATIVE;
 
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D10_COMMONSHADER_TEXEL_OFFSET_MAX_NEGATIVE;
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return D3D10_COMMONSHADER_TEXEL_OFFSET_MAX_NEGATIVE;
 
-        // Sampling functions with offsets are not available below shader model 4.0.
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 0;
+      // Sampling functions with offsets are not available below shader model 4.0.
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return 0;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-int GetMaximumTexelOffset(D3D_FEATURE_LEVEL featureLevel)
+static int GetMaximumTexelOffset(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_COMMONSHADER_TEXEL_OFFSET_MAX_POSITIVE;
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D11_COMMONSHADER_TEXEL_OFFSET_MAX_POSITIVE;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return D3D11_COMMONSHADER_TEXEL_OFFSET_MAX_POSITIVE;
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return D3D11_COMMONSHADER_TEXEL_OFFSET_MAX_POSITIVE;
 
-        // Sampling functions with offsets are not available below shader model 4.0.
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 0;
+      // Sampling functions with offsets are not available below shader model 4.0.
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return 0;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximumConstantBufferSize(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximumConstantBufferSize(D3D_FEATURE_LEVEL featureLevel)
 {
-    // Returns a size_t despite the limit being a GLuint64 because size_t is the maximum
-    // size of
+    // Returns a size_t despite the limit being a GLuint64 because size_t is the maximum size of
     // any buffer that could be allocated.
 
     const size_t bytesPerComponent = 4 * sizeof(float);
 
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_REQ_CONSTANT_BUFFER_ELEMENT_COUNT * bytesPerComponent;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return D3D11_REQ_CONSTANT_BUFFER_ELEMENT_COUNT * bytesPerComponent;
 
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D10_REQ_CONSTANT_BUFFER_ELEMENT_COUNT * bytesPerComponent;
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return D3D10_REQ_CONSTANT_BUFFER_ELEMENT_COUNT * bytesPerComponent;
 
-        // Limits from http://msdn.microsoft.com/en-us/library/windows/desktop/ff476501.aspx
-        // remarks section
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 4096 * bytesPerComponent;
+      // Limits from http://msdn.microsoft.com/en-us/library/windows/desktop/ff476501.aspx remarks section
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return 4096 * bytesPerComponent;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximumStreamOutputBuffers(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximumStreamOutputBuffers(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return D3D11_SO_BUFFER_SLOT_COUNT;
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return D3D11_SO_BUFFER_SLOT_COUNT;
 
-        case D3D_FEATURE_LEVEL_10_1:
-            return D3D10_1_SO_BUFFER_SLOT_COUNT;
-        case D3D_FEATURE_LEVEL_10_0:
-            return D3D10_SO_BUFFER_SLOT_COUNT;
+      case D3D_FEATURE_LEVEL_10_1: return D3D10_1_SO_BUFFER_SLOT_COUNT;
+      case D3D_FEATURE_LEVEL_10_0: return D3D10_SO_BUFFER_SLOT_COUNT;
 
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 0;
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return 0;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximumStreamOutputInterleavedComponents(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximumStreamOutputInterleavedComponents(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0:
 
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return GetMaximumVertexOutputVectors(featureLevel) * 4;
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return GetMaximumVertexOutputVectors(featureLevel) * 4;
 
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 0;
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return 0;
 
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
-size_t GetMaximumStreamOutputSeparateComponents(D3D_FEATURE_LEVEL featureLevel)
+static size_t GetMaximumStreamOutputSeparateComponents(D3D_FEATURE_LEVEL featureLevel)
 {
     switch (featureLevel)
     {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-            return GetMaximumStreamOutputInterleavedComponents(featureLevel) /
-                   GetMaximumStreamOutputBuffers(featureLevel);
-
-        // D3D 10 and 10.1 only allow one output per output slot if an output slot other
-        // than zero is used.
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return 4;
-
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 0;
-
-        default:
-            UNREACHABLE();
-            return 0;
-    }
-}
+      case D3D_FEATURE_LEVEL_11_1:
+      case D3D_FEATURE_LEVEL_11_0: return GetMaximumStreamOutputInterleavedComponents(featureLevel) /
+                                          GetMaximumStreamOutputBuffers(featureLevel);
 
-}  // anonymous namespace
 
-unsigned int GetReservedVertexUniformVectors(D3D_FEATURE_LEVEL featureLevel)
-{
-    switch (featureLevel)
-    {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return 0;
+      // D3D 10 and 10.1 only allow one output per output slot if an output slot other than zero is used.
+      case D3D_FEATURE_LEVEL_10_1:
+      case D3D_FEATURE_LEVEL_10_0: return 4;
 
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 3;  // dx_ViewAdjust, dx_ViewCoords and dx_ViewScale
+      case D3D_FEATURE_LEVEL_9_3:
+      case D3D_FEATURE_LEVEL_9_2:
+      case D3D_FEATURE_LEVEL_9_1:  return 0;
 
-        default:
-            UNREACHABLE();
-            return 0;
-    }
-}
-
-unsigned int GetReservedFragmentUniformVectors(D3D_FEATURE_LEVEL featureLevel)
-{
-    switch (featureLevel)
-    {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-        case D3D_FEATURE_LEVEL_10_1:
-        case D3D_FEATURE_LEVEL_10_0:
-            return 0;
-
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 3;
-
-        default:
-            UNREACHABLE();
-            return 0;
-    }
-}
-
-GLint GetMaximumClientVersion(D3D_FEATURE_LEVEL featureLevel)
-{
-    switch (featureLevel)
-    {
-        case D3D_FEATURE_LEVEL_11_1:
-        case D3D_FEATURE_LEVEL_11_0:
-        case D3D_FEATURE_LEVEL_10_1:
-            return 3;
-
-        case D3D_FEATURE_LEVEL_10_0:
-        case D3D_FEATURE_LEVEL_9_3:
-        case D3D_FEATURE_LEVEL_9_2:
-        case D3D_FEATURE_LEVEL_9_1:
-            return 2;
-
-        default:
-            UNREACHABLE();
-            return 0;
+      default: UNREACHABLE();      return 0;
     }
 }
 
@@ -1220,7 +1239,6 @@ void GenerateCaps(ID3D11Device *device, ID3D11DeviceContext *deviceContext, cons
     extensions->lossyETCDecode           = true;
     extensions->syncQuery                 = GetEventQuerySupport(featureLevel);
     extensions->copyTexture               = true;
-    extensions->copyCompressedTexture     = true;
 
     // D3D11 Feature Level 10_0+ uses SV_IsFrontFace in HLSL to emulate gl_FrontFacing.
     // D3D11 Feature Level 9_3 doesn't support SV_IsFrontFace, and has no equivalent, so can't support gl_FrontFacing.
@@ -1252,336 +1270,6 @@ void GenerateCaps(ID3D11Device *device, ID3D11DeviceContext *deviceContext, cons
 
 }  // namespace d3d11_gl
 
-namespace gl_d3d11
-{
-
-D3D11_BLEND ConvertBlendFunc(GLenum glBlend, bool isAlpha)
-{
-    D3D11_BLEND d3dBlend = D3D11_BLEND_ZERO;
-
-    switch (glBlend)
-    {
-        case GL_ZERO:
-            d3dBlend = D3D11_BLEND_ZERO;
-            break;
-        case GL_ONE:
-            d3dBlend = D3D11_BLEND_ONE;
-            break;
-        case GL_SRC_COLOR:
-            d3dBlend = (isAlpha ? D3D11_BLEND_SRC_ALPHA : D3D11_BLEND_SRC_COLOR);
-            break;
-        case GL_ONE_MINUS_SRC_COLOR:
-            d3dBlend = (isAlpha ? D3D11_BLEND_INV_SRC_ALPHA : D3D11_BLEND_INV_SRC_COLOR);
-            break;
-        case GL_DST_COLOR:
-            d3dBlend = (isAlpha ? D3D11_BLEND_DEST_ALPHA : D3D11_BLEND_DEST_COLOR);
-            break;
-        case GL_ONE_MINUS_DST_COLOR:
-            d3dBlend = (isAlpha ? D3D11_BLEND_INV_DEST_ALPHA : D3D11_BLEND_INV_DEST_COLOR);
-            break;
-        case GL_SRC_ALPHA:
-            d3dBlend = D3D11_BLEND_SRC_ALPHA;
-            break;
-        case GL_ONE_MINUS_SRC_ALPHA:
-            d3dBlend = D3D11_BLEND_INV_SRC_ALPHA;
-            break;
-        case GL_DST_ALPHA:
-            d3dBlend = D3D11_BLEND_DEST_ALPHA;
-            break;
-        case GL_ONE_MINUS_DST_ALPHA:
-            d3dBlend = D3D11_BLEND_INV_DEST_ALPHA;
-            break;
-        case GL_CONSTANT_COLOR:
-            d3dBlend = D3D11_BLEND_BLEND_FACTOR;
-            break;
-        case GL_ONE_MINUS_CONSTANT_COLOR:
-            d3dBlend = D3D11_BLEND_INV_BLEND_FACTOR;
-            break;
-        case GL_CONSTANT_ALPHA:
-            d3dBlend = D3D11_BLEND_BLEND_FACTOR;
-            break;
-        case GL_ONE_MINUS_CONSTANT_ALPHA:
-            d3dBlend = D3D11_BLEND_INV_BLEND_FACTOR;
-            break;
-        case GL_SRC_ALPHA_SATURATE:
-            d3dBlend = D3D11_BLEND_SRC_ALPHA_SAT;
-            break;
-        default:
-            UNREACHABLE();
-    }
-
-    return d3dBlend;
-}
-
-D3D11_BLEND_OP ConvertBlendOp(GLenum glBlendOp)
-{
-    D3D11_BLEND_OP d3dBlendOp = D3D11_BLEND_OP_ADD;
-
-    switch (glBlendOp)
-    {
-        case GL_FUNC_ADD:
-            d3dBlendOp = D3D11_BLEND_OP_ADD;
-            break;
-        case GL_FUNC_SUBTRACT:
-            d3dBlendOp = D3D11_BLEND_OP_SUBTRACT;
-            break;
-        case GL_FUNC_REVERSE_SUBTRACT:
-            d3dBlendOp = D3D11_BLEND_OP_REV_SUBTRACT;
-            break;
-        case GL_MIN:
-            d3dBlendOp = D3D11_BLEND_OP_MIN;
-            break;
-        case GL_MAX:
-            d3dBlendOp = D3D11_BLEND_OP_MAX;
-            break;
-        default:
-            UNREACHABLE();
-    }
-
-    return d3dBlendOp;
-}
-
-UINT8 ConvertColorMask(bool red, bool green, bool blue, bool alpha)
-{
-    UINT8 mask = 0;
-    if (red)
-    {
-        mask |= D3D11_COLOR_WRITE_ENABLE_RED;
-    }
-    if (green)
-    {
-        mask |= D3D11_COLOR_WRITE_ENABLE_GREEN;
-    }
-    if (blue)
-    {
-        mask |= D3D11_COLOR_WRITE_ENABLE_BLUE;
-    }
-    if (alpha)
-    {
-        mask |= D3D11_COLOR_WRITE_ENABLE_ALPHA;
-    }
-    return mask;
-}
-
-D3D11_CULL_MODE ConvertCullMode(bool cullEnabled, GLenum cullMode)
-{
-    D3D11_CULL_MODE cull = D3D11_CULL_NONE;
-
-    if (cullEnabled)
-    {
-        switch (cullMode)
-        {
-            case GL_FRONT:
-                cull = D3D11_CULL_FRONT;
-                break;
-            case GL_BACK:
-                cull = D3D11_CULL_BACK;
-                break;
-            case GL_FRONT_AND_BACK:
-                cull = D3D11_CULL_NONE;
-                break;
-            default:
-                UNREACHABLE();
-        }
-    }
-    else
-    {
-        cull = D3D11_CULL_NONE;
-    }
-
-    return cull;
-}
-
-D3D11_COMPARISON_FUNC ConvertComparison(GLenum comparison)
-{
-    D3D11_COMPARISON_FUNC d3dComp = D3D11_COMPARISON_NEVER;
-    switch (comparison)
-    {
-        case GL_NEVER:
-            d3dComp = D3D11_COMPARISON_NEVER;
-            break;
-        case GL_ALWAYS:
-            d3dComp = D3D11_COMPARISON_ALWAYS;
-            break;
-        case GL_LESS:
-            d3dComp = D3D11_COMPARISON_LESS;
-            break;
-        case GL_LEQUAL:
-            d3dComp = D3D11_COMPARISON_LESS_EQUAL;
-            break;
-        case GL_EQUAL:
-            d3dComp = D3D11_COMPARISON_EQUAL;
-            break;
-        case GL_GREATER:
-            d3dComp = D3D11_COMPARISON_GREATER;
-            break;
-        case GL_GEQUAL:
-            d3dComp = D3D11_COMPARISON_GREATER_EQUAL;
-            break;
-        case GL_NOTEQUAL:
-            d3dComp = D3D11_COMPARISON_NOT_EQUAL;
-            break;
-        default:
-            UNREACHABLE();
-    }
-
-    return d3dComp;
-}
-
-D3D11_DEPTH_WRITE_MASK ConvertDepthMask(bool depthWriteEnabled)
-{
-    return depthWriteEnabled ? D3D11_DEPTH_WRITE_MASK_ALL : D3D11_DEPTH_WRITE_MASK_ZERO;
-}
-
-UINT8 ConvertStencilMask(GLuint stencilmask)
-{
-    return static_cast<UINT8>(stencilmask);
-}
-
-D3D11_STENCIL_OP ConvertStencilOp(GLenum stencilOp)
-{
-    D3D11_STENCIL_OP d3dStencilOp = D3D11_STENCIL_OP_KEEP;
-
-    switch (stencilOp)
-    {
-        case GL_ZERO:
-            d3dStencilOp = D3D11_STENCIL_OP_ZERO;
-            break;
-        case GL_KEEP:
-            d3dStencilOp = D3D11_STENCIL_OP_KEEP;
-            break;
-        case GL_REPLACE:
-            d3dStencilOp = D3D11_STENCIL_OP_REPLACE;
-            break;
-        case GL_INCR:
-            d3dStencilOp = D3D11_STENCIL_OP_INCR_SAT;
-            break;
-        case GL_DECR:
-            d3dStencilOp = D3D11_STENCIL_OP_DECR_SAT;
-            break;
-        case GL_INVERT:
-            d3dStencilOp = D3D11_STENCIL_OP_INVERT;
-            break;
-        case GL_INCR_WRAP:
-            d3dStencilOp = D3D11_STENCIL_OP_INCR;
-            break;
-        case GL_DECR_WRAP:
-            d3dStencilOp = D3D11_STENCIL_OP_DECR;
-            break;
-        default:
-            UNREACHABLE();
-    }
-
-    return d3dStencilOp;
-}
-
-D3D11_FILTER ConvertFilter(GLenum minFilter,
-                           GLenum magFilter,
-                           float maxAnisotropy,
-                           GLenum comparisonMode)
-{
-    bool comparison = comparisonMode != GL_NONE;
-
-    if (maxAnisotropy > 1.0f)
-    {
-        return D3D11_ENCODE_ANISOTROPIC_FILTER(static_cast<D3D11_COMPARISON_FUNC>(comparison));
-    }
-    else
-    {
-        D3D11_FILTER_TYPE dxMin = D3D11_FILTER_TYPE_POINT;
-        D3D11_FILTER_TYPE dxMip = D3D11_FILTER_TYPE_POINT;
-        switch (minFilter)
-        {
-            case GL_NEAREST:
-                dxMin = D3D11_FILTER_TYPE_POINT;
-                dxMip = D3D11_FILTER_TYPE_POINT;
-                break;
-            case GL_LINEAR:
-                dxMin = D3D11_FILTER_TYPE_LINEAR;
-                dxMip = D3D11_FILTER_TYPE_POINT;
-                break;
-            case GL_NEAREST_MIPMAP_NEAREST:
-                dxMin = D3D11_FILTER_TYPE_POINT;
-                dxMip = D3D11_FILTER_TYPE_POINT;
-                break;
-            case GL_LINEAR_MIPMAP_NEAREST:
-                dxMin = D3D11_FILTER_TYPE_LINEAR;
-                dxMip = D3D11_FILTER_TYPE_POINT;
-                break;
-            case GL_NEAREST_MIPMAP_LINEAR:
-                dxMin = D3D11_FILTER_TYPE_POINT;
-                dxMip = D3D11_FILTER_TYPE_LINEAR;
-                break;
-            case GL_LINEAR_MIPMAP_LINEAR:
-                dxMin = D3D11_FILTER_TYPE_LINEAR;
-                dxMip = D3D11_FILTER_TYPE_LINEAR;
-                break;
-            default:
-                UNREACHABLE();
-        }
-
-        D3D11_FILTER_TYPE dxMag = D3D11_FILTER_TYPE_POINT;
-        switch (magFilter)
-        {
-            case GL_NEAREST:
-                dxMag = D3D11_FILTER_TYPE_POINT;
-                break;
-            case GL_LINEAR:
-                dxMag = D3D11_FILTER_TYPE_LINEAR;
-                break;
-            default:
-                UNREACHABLE();
-        }
-
-        return D3D11_ENCODE_BASIC_FILTER(dxMin, dxMag, dxMip,
-                                         static_cast<D3D11_COMPARISON_FUNC>(comparison));
-    }
-}
-
-D3D11_TEXTURE_ADDRESS_MODE ConvertTextureWrap(GLenum wrap)
-{
-    switch (wrap)
-    {
-        case GL_REPEAT:
-            return D3D11_TEXTURE_ADDRESS_WRAP;
-        case GL_CLAMP_TO_EDGE:
-            return D3D11_TEXTURE_ADDRESS_CLAMP;
-        case GL_MIRRORED_REPEAT:
-            return D3D11_TEXTURE_ADDRESS_MIRROR;
-        default:
-            UNREACHABLE();
-    }
-
-    return D3D11_TEXTURE_ADDRESS_WRAP;
-}
-
-UINT ConvertMaxAnisotropy(float maxAnisotropy, D3D_FEATURE_LEVEL featureLevel)
-{
-    return static_cast<UINT>(std::min(maxAnisotropy, d3d11_gl::GetMaximumAnisotropy(featureLevel)));
-}
-
-D3D11_QUERY ConvertQueryType(GLenum queryType)
-{
-    switch (queryType)
-    {
-        case GL_ANY_SAMPLES_PASSED_EXT:
-        case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT:
-            return D3D11_QUERY_OCCLUSION;
-        case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
-            return D3D11_QUERY_SO_STATISTICS;
-        case GL_TIME_ELAPSED_EXT:
-            // Two internal queries are also created for begin/end timestamps
-            return D3D11_QUERY_TIMESTAMP_DISJOINT;
-        case GL_COMMANDS_COMPLETED_CHROMIUM:
-            return D3D11_QUERY_EVENT;
-        default:
-            UNREACHABLE();
-            return D3D11_QUERY_EVENT;
-    }
-}
-
-}  // namespace gl_d3d11
-
 namespace d3d11
 {
 
@@ -1791,6 +1479,7 @@ ID3D11InputLayout *LazyInputLayout::resolve(ID3D11Device *device)
             device->CreateInputLayout(&mInputDesc[0], static_cast<UINT>(mInputDesc.size()),
                                       mByteCode, mByteCodeLen, &mResource);
         ASSERT(SUCCEEDED(result));
+        UNUSED_ASSERTION_VARIABLE(result);
         d3d11::SetDebugName(mResource, mDebugName);
     }
 
@@ -1810,6 +1499,7 @@ ID3D11BlendState *LazyBlendState::resolve(ID3D11Device *device)
     {
         HRESULT result = device->CreateBlendState(&mDesc, &mResource);
         ASSERT(SUCCEEDED(result));
+        UNUSED_ASSERTION_VARIABLE(result);
         d3d11::SetDebugName(mResource, mDebugName);
     }
 
@@ -1828,7 +1518,7 @@ WorkaroundsD3D GenerateWorkarounds(const Renderer11DeviceCaps &deviceCaps,
     workarounds.useInstancedPointSpriteEmulation = is9_3;
 
     // TODO(jmadill): Narrow problematic driver range.
-    if (IsNvidia(adapterDesc.VendorId))
+    if (adapterDesc.VendorId == VENDOR_ID_NVIDIA)
     {
         if (deviceCaps.driverVersion.valid())
         {
@@ -1847,32 +1537,11 @@ WorkaroundsD3D GenerateWorkarounds(const Renderer11DeviceCaps &deviceCaps,
     // TODO(jmadill): Disable workaround when we have a fixed compiler DLL.
     workarounds.expandIntegerPowExpressions = true;
 
-    workarounds.flushAfterEndingTransformFeedback = IsNvidia(adapterDesc.VendorId);
-    workarounds.getDimensionsIgnoresBaseLevel     = IsNvidia(adapterDesc.VendorId);
-
-    workarounds.preAddTexelFetchOffsets = IsIntel(adapterDesc.VendorId);
-    workarounds.disableB5G6R5Support    = IsIntel(adapterDesc.VendorId);
-    workarounds.rewriteUnaryMinusOperator =
-        IsIntel(adapterDesc.VendorId) &&
-        (IsBroadwell(adapterDesc.DeviceId) || IsHaswell(adapterDesc.DeviceId));
-    workarounds.emulateIsnanFloat =
-        IsIntel(adapterDesc.VendorId) && IsSkylake(adapterDesc.DeviceId);
-    workarounds.callClearTwice =
-        IsIntel(adapterDesc.VendorId) && IsSkylake(adapterDesc.DeviceId);
-
-    // TODO(jmadill): Disable when we have a fixed driver version.
-    workarounds.emulateTinyStencilTextures = IsAMD(adapterDesc.VendorId);
-
-    // The tiny stencil texture workaround involves using CopySubresource or UpdateSubresource on a
-    // depth stencil texture.  This is not allowed until feature level 10.1 but since it is not
-    // possible to support ES3 on these devices, there is no need for the workaround to begin with
-    // (anglebug.com/1572).
-    if (deviceCaps.featureLevel < D3D_FEATURE_LEVEL_10_1)
-    {
-        workarounds.emulateTinyStencilTextures = false;
-    }
+    workarounds.flushAfterEndingTransformFeedback = (adapterDesc.VendorId == VENDOR_ID_NVIDIA);
+    workarounds.getDimensionsIgnoresBaseLevel     = (adapterDesc.VendorId == VENDOR_ID_NVIDIA);
 
-    workarounds.useSystemMemoryForConstantBuffers = IsIntel(adapterDesc.VendorId);
+    workarounds.preAddTexelFetchOffsets = (adapterDesc.VendorId == VENDOR_ID_INTEL);
+    workarounds.disableB5G6R5Support    = (adapterDesc.VendorId == VENDOR_ID_INTEL);
 
     return workarounds;
 }