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mipmap support on DDS for openGL cubemap

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Anis 2014-12-15 18:59:42 +01:00
parent 5d5303cf6d
commit 0cf36a8906
1 changed files with 10 additions and 15 deletions
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25
Engine/source/gfx/gl/gfxGLCubemap.cpp
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@ -123,24 +123,21 @@ void GFXGLCubemap::initStatic( DDSFile *dds )
mDDSFile = ResourceManager::get().load( dds->getSourcePath() );
AssertFatal( mDDSFile == dds, "GFXGLCubemap::initStatic - Couldn't find DDSFile resource!" );
mWidth = dds->getWidth();
mHeight = dds->getHeight();
mFaceFormat = dds->getFormat();
mMipLevels = dds->getMipLevels();
glGenTextures(1, &mCubemap);
PRESERVE_CUBEMAP_TEXTURE();
glBindTexture(GL_TEXTURE_CUBE_MAP, mCubemap);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAX_LEVEL, 0 );
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAX_LEVEL, mMipLevels - 1);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
mWidth = dds->getWidth();
mHeight = dds->getHeight();
mFaceFormat = dds->getFormat();
mMipLevels = 1;
// TODO: Support mipmaps here as well as decompressing the
// DDS if the format is unsupported.
AssertFatal(mWidth == mHeight, "GFXGLCubemap::initStatic - Width and height must be equal!");
@ -151,13 +148,11 @@ void GFXGLCubemap::initStatic( DDSFile *dds )
// TODO: The DDS can skip surfaces, but i'm unsure what i should
// do here when creating the cubemap. Ignore it for now.
continue;
}
}
const U8 *buffer = dds->mSurfaces[i]->mMips[0];
U32 surfaceSize = dds->getSurfaceSize( mHeight, mWidth, i );
glCompressedTexImage2D( faceList[i], 0, GFXGLTextureInternalFormat[mFaceFormat],
mWidth, mHeight, 0, surfaceSize, buffer );
// Now loop thru the mip levels!
for (U32 j = 0; j < mMipLevels; j++)
glCompressedTexImage2D(faceList[i], j, GFXGLTextureInternalFormat[mFaceFormat], mWidth, mHeight, 0, dds->getSurfaceSize(j), dds->mSurfaces[i]->mMips[j]);
}
}