Method GatherSprites

trinity/EveSprite2dBracketRenderer.cpp:20–200

}

void EveSprite2dBracketRenderer::GatherSprites( Tr2Sprite2dScene* renderer )
{
	CCP_STATS_ZONE( __FUNCTION__ );

	USE_MAIN_THREAD_RENDER_CONTEXT();
	using namespace Tr2RenderContextEnum;

	if( !m_display )
	{
		return;
	}

	if( m_brackets.empty() )
	{
		return;
	}

	unsigned int vertexCount = (unsigned int)m_brackets.size() * 4;
	unsigned int indexCount = (unsigned int)m_brackets.size() * 6;

	Tr2Sprite2dD3DVertex* vertices;

	if( m_bracketCountInBuffers != m_brackets.size() )
	{
		{
			USE_MAIN_THREAD_RENDER_CONTEXT();
			// Allocate new vertex/index buffers
			if( FAILED( m_vertexBuffer.Create( sizeof( Tr2Sprite2dD3DVertex ), vertexCount, Tr2GpuUsage::VERTEX_BUFFER, Tr2CpuUsage::READ | Tr2CpuUsage::WRITE, nullptr, renderContext ) ) )
			{
				CCP_LOGERR( "%s failed to create vertex buffer", __FUNCTION__ );
				return;
			}

			if( FAILED( m_indexBuffer.Create( 2, indexCount, Tr2GpuUsage::INDEX_BUFFER, Tr2CpuUsage::READ | Tr2CpuUsage::WRITE, nullptr, renderContext ) ) )
			{
				CCP_LOGERR( "%s failed to create index buffer", __FUNCTION__ );
				return;
			}
		}

		m_bracketCountInBuffers = (unsigned int)m_brackets.size();

		// Fill in the parts of the vertex buffer that don't change
		HRESULT hr = m_vertexBuffer.MapForWriting( vertices, renderContext );
		if( FAILED( hr ) )
		{
			CCP_LOGERR( "%s failed to lock vertex buffer (%d)", __FUNCTION__, hr );
			return;
		}

		// Fill the index buffer now - it only changes when the count changes.
		unsigned short* indices;
		hr = m_indexBuffer.MapForWriting( indices, renderContext );
		if( FAILED( hr ) )
		{
			CCP_LOGERR( "%s failed to lock index buffer (%d)", __FUNCTION__, hr );
			return;
		}