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#include "attribute_provider.hpp"
#include "../base/assert.hpp"
#ifdef DEBUG
#define INIT_CHECK_INFO(x) m_checkInfo = vector<bool>((vector<bool>::size_type)(x), false);
#define CHECK_STREAMS CheckStreams()
#define INIT_STREAM(x) InitCheckStream((x))
#else
#include "../../base/macros.hpp"
#define INIT_CHECK_INFO(x) UNUSED_VALUE((x))
#define CHECK_STREAMS
#define INIT_STREAM(x) UNUSED_VALUE((x))
#endif
AttributeProvider::AttributeProvider(uint8_t streamCount, uint16_t vertexCount)
: m_vertexCount(vertexCount)
{
m_streams.resize(streamCount);
INIT_CHECK_INFO(streamCount);
}
/// interface for batcher
bool AttributeProvider::IsDataExists() const
{
CHECK_STREAMS;
return m_vertexCount > 0;
}
uint16_t AttributeProvider::GetVertexCount() const
{
return m_vertexCount;
}
uint8_t AttributeProvider::GetStreamCount() const
{
return m_streams.size();
}
const void * AttributeProvider::GetRawPointer(uint8_t streamIndex)
{
ASSERT_LESS(streamIndex, GetStreamCount(), ());
CHECK_STREAMS;
return m_streams[streamIndex].m_data.GetRaw();
}
const BindingInfo & AttributeProvider::GetBindingInfo(uint8_t streamIndex) const
{
ASSERT_LESS(streamIndex, GetStreamCount(), ());
CHECK_STREAMS;
return m_streams[streamIndex].m_binding;
}
void AttributeProvider::Advance(uint16_t vertexCount)
{
ASSERT_LESS_OR_EQUAL(vertexCount, m_vertexCount, ());
CHECK_STREAMS;
for (size_t i = 0; i < GetStreamCount(); ++i)
{
const BindingInfo & info = m_streams[i].m_binding;
uint32_t offset = vertexCount * info.GetElementSize();
void * rawPointer = m_streams[i].m_data.GetRaw();
m_streams[i].m_data = ReferencePoiner<void>((void *)(((uint8_t *)rawPointer) + offset));
}
m_vertexCount -= vertexCount;
}
void AttributeProvider::InitStream(uint8_t streamIndex,
const BindingInfo &bindingInfo,
ReferencePoiner<void> data)
{
ASSERT_LESS(streamIndex, GetStreamCount(), ());
AttributeStream s;
s.m_binding = bindingInfo;
s.m_data = data;
m_streams[streamIndex] = s;
INIT_STREAM(streamIndex);
}
#ifdef DEBUG
void AttributeProvider::CheckStreams() const
{
ASSERT(std::find(m_checkInfo.begin(), m_checkInfo.end(), false) == m_checkInfo.end(),
("Not all streams initialized"));
}
void AttributeProvider::InitCheckStream(uint8_t streamIndex)
{
m_checkInfo[streamIndex] = true;
}
#endif
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