void GFXGLCubemap::initStatic( DDSFile *dds )
{
if(mCubemap)
return;
AssertFatal( dds, "GFXGLCubemap::initStatic - Got null DDS file!" );
AssertFatal( dds->isCubemap(), "GFXGLCubemap::initStatic - Got non-cubemap DDS file!" );
AssertFatal( dds->mSurfaces.size() == 6, "GFXGLCubemap::initStatic - DDS has less than 6 surfaces!" );
// HACK: I cannot put the genie back in the bottle and assign a
// DDSFile pointer back to a Resource<>.
//
// So we do a second lookup which works out ok for now, but shows
// the weakness in the ResourceManager not having a common base
// reference type.
//
mDDSFile = ResourceManager::get().load( dds->getSourcePath() );
AssertFatal( mDDSFile == dds, "GFXGLCubemap::initStatic - Couldn't find DDSFile resource!" );
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_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!");
for(U32 i = 0; i < 6; i++)
{
if ( !dds->mSurfaces[i] )
{
// 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 );
}
}
void GFXGLCubemap::fillCubeTextures(GFXTexHandle* faces)
{
AssertFatal( faces, "");
AssertFatal( faces[0]->mMipLevels > 0, "");
PRESERVE_CUBEMAP_TEXTURE();
glBindTexture(GL_TEXTURE_CUBE_MAP, mCubemap);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAX_LEVEL, faces[0]->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);
U32 reqWidth = faces[0]->getWidth();
U32 reqHeight = faces[0]->getHeight();
GFXFormat regFaceFormat = faces[0]->getFormat();
const bool isCompressed = isCompressedFormat(regFaceFormat);
mWidth = reqWidth;
mHeight = reqHeight;
mFaceFormat = regFaceFormat;
mMipLevels = getMax( (U32)1, faces[0]->mMipLevels);
AssertFatal(reqWidth == reqHeight, "GFXGLCubemap::fillCubeTextures - Width and height must be equal!");
for(U32 i = 0; i < 6; i++)
{
AssertFatal(faces[i], avar("GFXGLCubemap::fillCubeFaces - texture %i is NULL!", i));
AssertFatal((faces[i]->getWidth() == reqWidth) && (faces[i]->getHeight() == reqHeight), "GFXGLCubemap::fillCubeFaces - All textures must have identical dimensions!");
AssertFatal(faces[i]->getFormat() == regFaceFormat, "GFXGLCubemap::fillCubeFaces - All textures must have identical formats!");
mTextures[i] = faces[i];
GFXFormat faceFormat = faces[i]->getFormat();
GFXGLTextureObject* glTex = static_cast<GFXGLTextureObject*>(faces[i].getPointer());
if( isCompressed )
{
for( U32 mip = 0; mip < mMipLevels; ++mip )
{
const U32 mipWidth = getMax( U32(1), faces[i]->getWidth() >> mip );
const U32 mipHeight = getMax( U32(1), faces[i]->getHeight() >> mip );
const U32 mipDataSize = getCompressedSurfaceSize( mFaceFormat, mWidth, mHeight, mip );
U8* buf = glTex->getTextureData( mip );
glCompressedTexImage2D(faceList[i], mip, GFXGLTextureInternalFormat[mFaceFormat], mipWidth, mipHeight, 0, mipDataSize, buf);
delete[] buf;
}
}
else
{
U8* buf = glTex->getTextureData();
glTexImage2D(faceList[i], 0, GFXGLTextureInternalFormat[faceFormat], mWidth, mHeight,
0, GFXGLTextureFormat[faceFormat], GFXGLTextureType[faceFormat], buf);
delete[] buf;
}
}
void GFXGLCubemap::initDynamic(U32 texSize, GFXFormat faceFormat)
{
mDynamicTexSize = texSize;
mFaceFormat = faceFormat;
glGenTextures(1, &mCubemap);
PRESERVE_CUBEMAP_TEXTURE();
glBindTexture(GL_TEXTURE_CUBE_MAP, mCubemap);
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 = texSize;
mHeight = texSize;
mMipLevels = 1;
for(U32 i = 0; i < 6; i++)
{
glTexImage2D( faceList[i], 0, GFXGLTextureInternalFormat[faceFormat], texSize, texSize,
0, GFXGLTextureFormat[faceFormat], GFXGLTextureType[faceFormat], NULL);
}
}
void GFXGLCubemap::fillCubeTextures(GFXTexHandle* faces)
{
PRESERVE_CUBEMAP_TEXTURE();
glBindTexture(GL_TEXTURE_CUBE_MAP, mCubemap);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAX_LEVEL, 0 ); // TODO OPENGL GFXGLCubemap mipmaps
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);
U32 reqWidth = faces[0]->getWidth();
U32 reqHeight = faces[0]->getHeight();
GFXFormat regFaceFormat = faces[0]->getFormat();
mWidth = reqWidth;
mHeight = reqHeight;
mFaceFormat = regFaceFormat;
mMipLevels = 1; // Lie for now
AssertFatal(reqWidth == reqHeight, "GFXGLCubemap::fillCubeTextures - Width and height must be equal!");
for(U32 i = 0; i < 6; i++)
{
AssertFatal(faces[i], avar("GFXGLCubemap::fillCubeFaces - texture %i is NULL!", i));
AssertFatal((faces[i]->getWidth() == reqWidth) && (faces[i]->getHeight() == reqHeight), "GFXGLCubemap::fillCubeFaces - All textures must have identical dimensions!");
AssertFatal(faces[i]->getFormat() == regFaceFormat, "GFXGLCubemap::fillCubeFaces - All textures must have identical formats!");
mTextures[i] = faces[i];
GFXFormat faceFormat = faces[i]->getFormat();
GFXGLTextureObject* glTex = static_cast<GFXGLTextureObject*>(faces[i].getPointer());
U8* buf = glTex->getTextureData();
glTexImage2D(faceList[i], 0, GFXGLTextureInternalFormat[faceFormat], faces[i]->getWidth(), faces[i]->getHeight(),
0, GFXGLTextureFormat[faceFormat], GFXGLTextureType[faceFormat], buf);
delete[] buf;
}
}
