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/*
* Copyright 2009, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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
* OWNER OR CONTRIBUTORS 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.
*/
// This file contains definitions for the DrawContext class. This class
// contains two pre-defined Parameters: o3d.view, for the viewing
// matrix, and o3d.projection, for the projection matrix. There
// are convenience funtions for accessing these without looking them up
// by name. These matrices are used by StandardParamMatrix4s, to implement
// the SAS transform semantics. In addition, any user-defined
// parameters added to the DrawContext will be made "global", ie.,
// linked to all Shapes containing parameters of the same name, by
// Node::GenerateRenderTreeGroup().
#include "core/cross/draw_context.h"
namespace o3d {
const char* DrawContext::kViewParamName =
O3D_STRING_CONSTANT("view");
const char* DrawContext::kProjectionParamName =
O3D_STRING_CONSTANT("projection");
O3D_DEFN_CLASS(DrawContext, ParamObject);
O3D_DEFN_CLASS(ParamDrawContext, RefParamBase);
DrawContext::DrawContext(ServiceLocator* service_locator)
: ParamObject(service_locator),
weak_pointer_manager_(this) {
RegisterParamRef(kViewParamName, &view_param_);
RegisterParamRef(kProjectionParamName, &projection_param_);
}
ObjectBase::Ref DrawContext::Create(ServiceLocator* service_locator) {
return ObjectBase::Ref(new DrawContext(service_locator));
}
ObjectBase::Ref ParamDrawContext::Create(ServiceLocator* service_locator) {
return ObjectBase::Ref(new ParamDrawContext(service_locator, false, false));
}
} // namespace o3d
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