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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 the declaration of FakeVertexSource. It is only used in
// unit testing and is not compiled in with the plugin.
#ifndef O3D_CORE_CROSS_FAKE_VERTEX_SOURCE_H_
#define O3D_CORE_CROSS_FAKE_VERTEX_SOURCE_H_
#include <vector>
#include "core/cross/param_object.h"
#include "core/cross/vertex_source.h"
namespace o3d {
// This class is here to test that a primitive has its vertices updated from a
// VertexSource through binding. It copies its source vertices, multiplying each
// one by 2 + the semantic index of the destination stream.
class FakeVertexSource : public VertexSource {
public:
explicit FakeVertexSource(ServiceLocator* service_locator)
: VertexSource(service_locator),
update_outputs_call_count_() {
}
// Binds a SourceBuffer and defines how the data in the buffer should be
// accessed and interpreted.
bool SetVertexStream(Stream::Semantic semantic,
int semantic_index,
Field* field,
unsigned int start_index);
// Removes a vertex stream from this primitive.
// Returns true if the specified stream existed.
bool RemoveVertexStream(Stream::Semantic stream_semantic,
int semantic_index);
// Searches the vertex streams bound to the shape for one with the given
// stream semantic. If a stream is not found then it returns NULL.
const Stream* GetVertexStream(Stream::Semantic stream_semantic,
int semantic_index) const;
// Updates all the VertexBuffers bound to streams on this VertexSource.
void UpdateStreams();
// Updates the VertexBuffers bound to streams on this VertexSource.
void UpdateOutputs();
// For testing.
unsigned update_outputs_call_count() {
return update_outputs_call_count_;
}
// Overriden from
virtual ParamVertexBufferStream* GetVertexStreamParam(
Stream::Semantic semantic,
int semantic_index) const;
private:
class SlaveParamVertexBufferStream : public ParamVertexBufferStream {
public:
SlaveParamVertexBufferStream(ServiceLocator* service_locator,
FakeVertexSource* master,
Stream* stream)
: ParamVertexBufferStream(service_locator, stream, true, false),
master_(master) {
}
virtual void ComputeValue() {
master_->UpdateOutputs();
}
private:
FakeVertexSource* master_;
DISALLOW_COPY_AND_ASSIGN(SlaveParamVertexBufferStream);
};
typedef std::vector<SlaveParamVertexBufferStream::Ref> StreamParamVector;
unsigned update_outputs_call_count_;
StreamParamVector vertex_stream_params_;
O3D_DECL_CLASS(FakeVertexSource, VertexSource);
DISALLOW_COPY_AND_ASSIGN(FakeVertexSource);
};
} // namespace o3d
#endif // O3D_CORE_CROSS_FAKE_VERTEX_SOURCE_H_
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