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D3D12: Use stream buffer for CD3DFont

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This commit is contained in:
Stenzek
2016-02-17 14:20:15 +10:00
parent 5c1a708977
commit ffe0e326d2
2 changed files with 15 additions and 38 deletions
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46
Source/Core/VideoBackends/D3D12/D3DUtil.cpp
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@ -359,24 +359,7 @@ int CD3DFont::Init()
const unsigned int text_vb_size = s_max_num_vertices * sizeof(FONT2DVERTEX);
CheckHR(
device12->CreateCommittedResource(
&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD),
D3D12_HEAP_FLAG_NONE,
&CD3DX12_RESOURCE_DESC::Buffer(text_vb_size),
D3D12_RESOURCE_STATE_GENERIC_READ,
nullptr,
IID_PPV_ARGS(&m_vb12)
)
);
SetDebugObjectName12(m_vb12, "vertex buffer of a CD3DFont object");
m_vb12_view.BufferLocation = m_vb12->GetGPUVirtualAddress();
m_vb12_view.SizeInBytes = text_vb_size;
m_vb12_view.StrideInBytes = sizeof(FONT2DVERTEX);
CheckHR(m_vb12->Map(0, nullptr, &m_vb12_data));
m_vertex_buffer = std::make_unique<D3DStreamBuffer>(text_vb_size * 2, text_vb_size * 16, nullptr);
D3D12_GRAPHICS_PIPELINE_STATE_DESC text_pso_desc = {
default_root_signature, // ID3D12RootSignature *pRootSignature;
@ -409,7 +392,7 @@ int CD3DFont::Init()
int CD3DFont::Shutdown()
{
D3D::command_list_mgr->DestroyResourceAfterCurrentCommandListExecuted(m_vb12);
m_vertex_buffer.reset();
D3D::command_list_mgr->DestroyResourceAfterCurrentCommandListExecuted(m_texture12);
return S_OK;
@ -417,7 +400,7 @@ int CD3DFont::Shutdown()
int CD3DFont::DrawTextScaled(float x, float y, float size, float spacing, u32 dwColor, const std::string& text)
{
if (!m_vb12)
if (!m_vertex_buffer)
return 0;
float scale_x = 1 / static_cast<float>(D3D::GetBackBufferWidth()) * 2.f;
@ -428,10 +411,6 @@ int CD3DFont::DrawTextScaled(float x, float y, float size, float spacing, u32 dw
float sx = x * scale_x - 1.f;
float sy = 1.f - y * scale_y;
// Fill vertex buffer
FONT2DVERTEX* vertices12 = static_cast<FONT2DVERTEX*>(m_vb12_data) + m_vb12_offset / sizeof(FONT2DVERTEX);
int num_triangles = 0L;
// set general pipeline state
D3D::current_command_list->SetPipelineState(m_pso);
D3D::command_list_mgr->SetCommandListDirtyState(COMMAND_LIST_STATE_PSO, true);
@ -441,13 +420,11 @@ int CD3DFont::DrawTextScaled(float x, float y, float size, float spacing, u32 dw
D3D::current_command_list->SetGraphicsRootDescriptorTable(DESCRIPTOR_TABLE_PS_SRV, m_texture12_gpu);
// If we are close to running off edge of vertex buffer, jump back to beginning.
if (m_vb12_offset + text.length() * 6 * sizeof(FONT2DVERTEX) >= s_max_num_vertices * sizeof(FONT2DVERTEX))
{
m_vb12_offset = 0;
vertices12 = static_cast<FONT2DVERTEX*>(m_vb12_data);
}
// upper bound is nchars * 6, assuming no spaces
m_vertex_buffer->AllocateSpaceInBuffer(static_cast<u32>(text.length()) * 6 * sizeof(FONT2DVERTEX), sizeof(FONT2DVERTEX));
FONT2DVERTEX* vertices12 = reinterpret_cast<FONT2DVERTEX*>(m_vertex_buffer->GetCPUAddressOfCurrentAllocation());
int num_triangles = 0;
float start_x = sx;
for (char c : text)
{
@ -487,13 +464,14 @@ int CD3DFont::DrawTextScaled(float x, float y, float size, float spacing, u32 dw
// Render the vertex buffer
if (num_triangles > 0)
{
D3D::current_command_list->IASetVertexBuffers(0, 1, &m_vb12_view);
u32 written_size = num_triangles * 3 * sizeof(FONT2DVERTEX);
m_vertex_buffer->OverrideSizeOfPreviousAllocation(written_size);
D3D::current_command_list->DrawInstanced(3 * num_triangles, 1, m_vb12_offset / sizeof(FONT2DVERTEX), 0);
D3D12_VERTEX_BUFFER_VIEW vb_view = { m_vertex_buffer->GetGPUAddressOfCurrentAllocation(), written_size, sizeof(FONT2DVERTEX) };
D3D::current_command_list->IASetVertexBuffers(0, 1, &vb_view);
D3D::current_command_list->DrawInstanced(3 * num_triangles, 1, 0, 0);
}
m_vb12_offset += 3 * num_triangles * sizeof(FONT2DVERTEX);
return S_OK;
}