//-----------------------------------------------------------------------
void GraphicsContextGL4::DrawIndexedInstanced(
std::size_t indexCount,
std::size_t instanceCount)
{
ApplyPipelineState();
// Bind index buffer
POMDOG_ASSERT(indexBuffer);
auto indexBufferGL = dynamic_cast<IndexBufferGL4*>(indexBuffer->NativeIndexBuffer());
POMDOG_ASSERT(indexBufferGL != nullptr);
indexBufferGL->BindBuffer();
// Draw
POMDOG_ASSERT(indexCount > 0);
POMDOG_ASSERT(indexCount <= indexBuffer->IndexCount());
POMDOG_ASSERT(instanceCount > 0);
POMDOG_ASSERT(instanceCount < static_cast<decltype(instanceCount)>(std::numeric_limits<GLsizei>::max()));
glDrawElementsInstanced(
primitiveTopology.value,
static_cast<GLsizei>(indexCount),
ToIndexElementType(indexBuffer->ElementSize()),
nullptr,
static_cast<GLsizei>(instanceCount));
POMDOG_CHECK_ERROR_GL4("glDrawElementsInstanced");
}
//---------------------------------------------------------------------------//
void RenderContextDX12::renderGeometry(const Geometry::GeometryData* pGeometry)
{
ApplyViewport();
ApplyRenderTargets();
ApplyPipelineState();
myCommandList->IASetPrimitiveTopology(D3D10_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
myCommandList->IASetVertexBuffers(0, 1, &pGeometry->getVertexBuffer()->GetVertexBufferView());
myCommandList->IASetIndexBuffer(&pGeometry->getIndexBuffer()->GetIndexBufferView());
myCommandList->DrawIndexedInstanced(pGeometry->getNumIndices(), 1, 0, 0, 0);
}
//-----------------------------------------------------------------------
void GraphicsContextGL4::Draw(std::size_t vertexCount)
{
ApplyPipelineState();
// Draw
POMDOG_ASSERT(!vertexBuffers.empty());
POMDOG_ASSERT(vertexBuffers.front().VertexBuffer);
POMDOG_ASSERT(vertexCount > 0);
POMDOG_ASSERT(vertexCount <= vertexBuffers.front().VertexBuffer->VertexCount());
glDrawArrays(
primitiveTopology.value,
0,
static_cast<GLsizei>(vertexCount));
POMDOG_CHECK_ERROR_GL4("glDrawArrays");
}
//-----------------------------------------------------------------------
void GraphicsContextGL4::DrawInstanced(
std::size_t vertexCount, std::size_t instanceCount)
{
ApplyPipelineState();
// Draw
POMDOG_ASSERT(!vertexBuffers.empty());
POMDOG_ASSERT(vertexBuffers.front().VertexBuffer);
POMDOG_ASSERT(vertexCount > 0);
POMDOG_ASSERT(vertexCount <= vertexBuffers.front().VertexBuffer->VertexCount());
POMDOG_ASSERT(instanceCount > 0);
POMDOG_ASSERT(instanceCount <= static_cast<decltype(instanceCount)>(std::numeric_limits<GLsizei>::max()));
glDrawArraysInstanced(
primitiveTopology.value,
0,
static_cast<GLsizei>(vertexCount),
static_cast<GLsizei>(instanceCount));
POMDOG_CHECK_ERROR_GL4("glDrawArraysInstanced");
}
