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further D3D11 cleanup & notes

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This commit is contained in:
Noel Berry 2020-12-29 18:01:11 -08:00
parent deafcb4f64
commit 01769d0b08
1 changed files with 50 additions and 27 deletions
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77
private/blah/internal/graphics_backend_d3d11.cpp
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@ -766,6 +766,7 @@ namespace Blah
state = D3D11();
state.last_size = Point(App::draw_width(), App::draw_height());
// Define Swap Chain
DXGI_SWAP_CHAIN_DESC desc = { 0 };
desc.BufferDesc.RefreshRate.Numerator = 0;
desc.BufferDesc.RefreshRate.Denominator = 1;
@ -778,8 +779,14 @@ namespace Blah
//desc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD;
desc.Windowed = true;
// Creation Flags
UINT flags = D3D11_CREATE_DEVICE_SINGLETHREADED;
#if defined(DEBUG) || defined(_DEBUG)
flags |= D3D11_CREATE_DEVICE_DEBUG;
#endif
// Create D3D device & context & swap cahin
D3D_FEATURE_LEVEL feature_level;
UINT flags = D3D11_CREATE_DEVICE_SINGLETHREADED | D3D11_CREATE_DEVICE_DEBUG;
HRESULT hr = D3D11CreateDeviceAndSwapChain(
NULL,
D3D_DRIVER_TYPE_HARDWARE,
@ -794,10 +801,11 @@ namespace Blah
&feature_level,
&state.context);
if (hr != S_OK || !state.swap_chain || !state.device || !state.context)
// Exit out if it's not OK
if (!SUCCEEDED(hr) || !state.swap_chain || !state.device || !state.context)
return false;
// get the backbuffer
// Get the backbuffer
ID3D11Texture2D* frame_buffer = nullptr;
state.swap_chain->GetBuffer(0, __uuidof(ID3D11Texture2D), (void**)&frame_buffer);
if (frame_buffer)
@ -806,10 +814,30 @@ namespace Blah
frame_buffer->Release();
}
// Store Features
state.features.instancing = true;
state.features.max_texture_size = D3D11_REQ_TEXTURE2D_U_OR_V_DIMENSION;
state.features.origin_bottom_left = false;
// Print Driver Info
{
IDXGIDevice* dxgi_device;
IDXGIAdapter* dxgi_adapter;
DXGI_ADAPTER_DESC adapter_desc;
hr = state.device->QueryInterface(__uuidof(IDXGIDevice), (void**)&dxgi_device);
if (SUCCEEDED(hr))
{
dxgi_device->GetAdapter(&dxgi_adapter);
dxgi_adapter->GetDesc(&adapter_desc);
Log::print("D3D11 %ls", adapter_desc.Description);
}
else
Log::print("D3D11");
}
return true;
}
@ -895,8 +923,8 @@ namespace Blah
void apply_uniforms(D3D11_Shader* shader, const MaterialRef& material, ShaderType type)
{
// HACK:
// Apply Uniforms ... I don't like how this is set up at all! This needs to be better!!
// TODO:
// I don't like how this is set up at all! This needs to be better!!
// The fact it builds this every render call is UGLY
auto& buffers = (type == ShaderType::Vertex ? shader->vcb : shader->fcb);
@ -1043,37 +1071,32 @@ namespace Blah
ctx->PSSetShader(shader->fragment, nullptr, 0);
ctx->PSSetConstantBuffers(0, shader->fcb.size(), shader->fcb.begin());
// Fragment Shader Textures
// Fragment Shader Textures & Samplers
auto& textures = pass.material->textures();
for (int i = 0; i < textures.size(); i++)
{
if (textures[i])
{
// Assign the Texture
auto view = ((D3D11_Texture*)textures[i].get())->view;
ctx->PSSetShaderResources(i, 1, &view);
// Assign the Sampler
// TODO:
// This is incorrect! Textures and Samplers are separate in HLSL.
// For now, assuming there's 1 Sampler Per Texture, and we set it to
// the properties of the texture at the same index.
// I think most modern APIs separate these, where as OpenGL makes
// them the same (afaik). Either we need to separate these in our
// API, or find some work around here.
auto sampler = state.get_sampler(textures[i]);
if (sampler)
ctx->PSSetSamplers(i, 1, &sampler);
}
}
// Sampler
// TODO:
// This is incorrect! Textures and Samplers are separate in HLSL.
// For now, just assuming there's only 1 Sampler and we set it to
// the properties of the first Texture ...
// I think most modern APIs separate these, where as OpenGL makes
// them the same (afaik). Either we need to separate these in our
// API, or find some work around here.
// I think our API should change to add Samplers as a unique resource,
// which matches D3D11 (and I assume Metal / Vulkan)
if (textures.size() > 0 && textures[0])
{
auto sampler = state.get_sampler(textures[0]);
if (sampler)
ctx->PSSetSamplers(0, 1, &sampler);
}
}
// RS