Source/WebCore/platform/graphics/filters/CustomFilterConstants.h

/*
 * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above
 *    copyright notice, this list of conditions and the following
 *    disclaimer.
 * 2. Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following
 *    disclaimer in the documentation and/or other materials
 *    provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef CustomFilterConstants_h
#define CustomFilterConstants_h

namespace WebCore {

enum CustomFilterMeshConstants {
    // Vertex attribute sizes
    PositionAttribSize = 4,
    TexAttribSize = 2,
    MeshAttribSize = 2,
    TriangleAttribSize = 3,
    // Vertex attribute offsets
    PositionAttribOffset = 0,
    TexAttribOffset = PositionAttribOffset + PositionAttribSize * sizeof(float),
    MeshAttribOffset = TexAttribOffset + TexAttribSize * sizeof(float),
    TriangleAttribOffset = MeshAttribOffset + MeshAttribSize * sizeof(float)
};

enum CustomFilterMeshType {
    MeshTypeAttached,
    MeshTypeDetached
};

enum CustomFilterProgramType {
    PROGRAM_TYPE_NO_ELEMENT_TEXTURE,
    PROGRAM_TYPE_BLENDS_ELEMENT_TEXTURE
};

} // namespace WebCore

#endif // CustomFilterConstants_h