Merge pull request #1053 from marauder2k9-torque/GLBorder

Add border color and clamp to border

Engine/source/gfx/D3D11/gfxD3D11StateBlock.cpp

@@ -186,10 +186,11 @@ GFXD3D11StateBlock::GFXD3D11StateBlock(const GFXStateBlockDesc& desc)
          else
             mSamplerDesc[i].Filter = comparison ? D3D11_FILTER_COMPARISON_ANISOTROPIC : D3D11_FILTER_ANISOTROPIC;
 
-         mSamplerDesc[i].BorderColor[0] = 1.0f;
-         mSamplerDesc[i].BorderColor[1] = 1.0f;
-         mSamplerDesc[i].BorderColor[2] = 1.0f;
-         mSamplerDesc[i].BorderColor[3] = 1.0f;
+         LinearColorF bc = LinearColorF(gfxSamplerState.borderColor);
+         mSamplerDesc[i].BorderColor[0] = bc.red;
+         mSamplerDesc[i].BorderColor[1] = bc.green;
+         mSamplerDesc[i].BorderColor[2] = bc.blue;
+         mSamplerDesc[i].BorderColor[3] = bc.alpha;
          mSamplerDesc[i].ComparisonFunc = GFXD3D11CmpFunc[gfxSamplerState.samplerFunc];
 
          hr = D3D11DEVICE->CreateSamplerState(&mSamplerDesc[i], &mSamplerStates[i]);

Engine/source/gfx/gfxStateBlock.cpp

@@ -278,6 +278,7 @@ GFXSamplerStateDesc::GFXSamplerStateDesc()
    samplerFunc = GFXCmpNever;
    maxAnisotropy = 1;
    mipLODBias = 0.0f;
+   borderColor = ColorI::WHITE;
 }
 
 GFXSamplerStateDesc GFXSamplerStateDesc::getWrapLinear()

Engine/source/gfx/gfxStateBlock.h

@@ -49,6 +49,8 @@ struct GFXSamplerStateDesc
 
    GFXCmpFunc samplerFunc;
 
+   ColorI borderColor;
+
    /// The maximum anisotropy used when one of the filter types
    /// is set to anisotropic.
    ///

Engine/source/gfx/gl/gfxGLEnumTranslate.cpp

@@ -93,7 +93,7 @@ void GFXGLEnumTranslate::init()
    GFXGLTextureAddress[GFXAddressWrap] = GL_REPEAT;
    GFXGLTextureAddress[GFXAddressMirror] = GL_REPEAT;
    GFXGLTextureAddress[GFXAddressClamp] = GL_CLAMP_TO_EDGE;
-   GFXGLTextureAddress[GFXAddressBorder] = GL_REPEAT;
+   GFXGLTextureAddress[GFXAddressBorder] = GL_CLAMP_TO_BORDER;
    GFXGLTextureAddress[GFXAddressMirrorOnce] = GL_REPEAT;
    
    // Stencil ops

Engine/source/gfx/gl/gfxGLStateBlock.cpp

@@ -55,7 +55,16 @@ GFXGLStateBlock::GFXGLStateBlock(const GFXStateBlockDesc& desc) :
          glSamplerParameteri(id, GL_TEXTURE_WRAP_S, GFXGLTextureAddress[ssd.addressModeU]);
          glSamplerParameteri(id, GL_TEXTURE_WRAP_T, GFXGLTextureAddress[ssd.addressModeV]);
          glSamplerParameteri(id, GL_TEXTURE_WRAP_R, GFXGLTextureAddress[ssd.addressModeW]);
-         
+
+         if (ssd.addressModeU == GFXAddressBorder ||
+             ssd.addressModeV == GFXAddressBorder ||
+             ssd.addressModeW == GFXAddressBorder)
+         {
+            LinearColorF bc = LinearColorF(ssd.borderColor);
+            GLfloat color[4] = { bc.red, bc.green, bc.blue, bc.alpha };
+            glSamplerParameterfv(id, GL_TEXTURE_BORDER_COLOR, color);
+         }
+
          //compare modes
          const bool comparison = ssd.samplerFunc != GFXCmpNever;
          glSamplerParameteri(id, GL_TEXTURE_COMPARE_MODE, comparison ? GL_COMPARE_R_TO_TEXTURE_ARB : GL_NONE );

Engine/source/gfx/gl/gfxGLTextureObject.cpp

@@ -219,7 +219,7 @@ void GFXGLTextureObject::initSamplerState(const GFXSamplerStateDesc &ssd)
       glTexParameteri(mBinding, GL_TEXTURE_WRAP_R, GFXGLTextureAddress[ssd.addressModeW]);
    if(static_cast< GFXGLDevice* >( GFX )->supportsAnisotropic() )
       glTexParameterf(mBinding, GL_TEXTURE_MAX_ANISOTROPY_EXT, ssd.maxAnisotropy);
-
+  
    mNeedInitSamplerState = false;
    mSampler = ssd;
 }

Engine/source/gfx/sim/gfxStateBlockData.cpp

@@ -315,6 +315,8 @@ void GFXSamplerStateData::initPersistFields()
 
    endGroup( "Filter State" );
 
+   addField("borderColor", TypeColorI, Offset(mState.borderColor, GFXSamplerStateData), "");
+
    addField("samplerFunc", TypeGFXCmpFunc, Offset(mState.samplerFunc, GFXSamplerStateData),
       "Compares sampled data against existing sampled data.  The default is GFXCmpNever.");
 }