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cleaning up D3D11 implementation

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This commit is contained in:
Noel Berry
2020-12-29 16:51:47 -08:00
parent 27f7134500
commit 5503198eff
6 changed files with 247 additions and 71 deletions
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271
private/blah/internal/graphics_backend_d3d11.cpp
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@ -24,34 +24,63 @@ namespace Blah
struct D3D11
{
// main resources
ID3D11Device* device = nullptr;
ID3D11DeviceContext* context = nullptr;
IDXGISwapChain* swap_chain = nullptr;
ID3D11RenderTargetView* backbuffer = nullptr;
ID3D11RasterizerState* rasterizer = nullptr;
ID3D11SamplerState* sampler = nullptr;
ID3D11DepthStencilState* depth_state = nullptr;
// supported renderer features
RendererFeatures features;
// last backbuffer size
Point last_size;
struct InputLayoutEntry
struct StoredInputLayout
{
uint32_t shader_hash;
VertexFormat format;
ID3D11InputLayout* layout;
};
struct BlendStateEntry
struct StoredBlendState
{
BlendMode blend;
ID3D11BlendState* state;
};
Vector<InputLayoutEntry> layout_cache;
Vector<BlendStateEntry> blend_cache;
struct StoredRasterizer
{
Cull cull;
bool has_scissor;
ID3D11RasterizerState* state;
};
struct StoredSampler
{
TextureFilter filter;
TextureWrap wrap_x;
TextureWrap wrap_y;
ID3D11SamplerState* state;
};
struct StoredDepthStencil
{
Compare depth;
ID3D11DepthStencilState* state;
};
Vector<StoredInputLayout> layout_cache;
Vector<StoredBlendState> blend_cache;
Vector<StoredRasterizer> rasterizer_cache;
Vector<StoredSampler> sampler_cache;
Vector<StoredDepthStencil> depthstencil_cache;
ID3D11InputLayout* get_layout(D3D11_Shader* shader, const VertexFormat& format);
ID3D11BlendState* get_blend(const BlendMode& blend);
ID3D11RasterizerState* get_rasterizer(const RenderPass& pass);
ID3D11SamplerState* get_sampler(const TextureRef& texture);
ID3D11DepthStencilState* get_depthstencil(const RenderPass& pass);
};
D3D11 state;
@ -338,7 +367,7 @@ namespace Blah
virtual void get_data(unsigned char* data) override
{
BLAH_ASSERT(false, "Not Implemented Yet");
}
virtual bool is_framebuffer() const override
@ -451,8 +480,8 @@ namespace Blah
// compile vertex shader
{
hr = D3DCompile(
data->vertex,
strlen(data->vertex),
data->vertex.cstr(),
data->vertex.length(),
nullptr,
nullptr,
nullptr,
@ -478,8 +507,8 @@ namespace Blah
// compile fragment shader
{
hr = D3DCompile(
data->fragment,
strlen(data->fragment),
data->fragment.cstr(),
data->fragment.length(),
nullptr,
nullptr,
nullptr,
@ -744,9 +773,9 @@ namespace Blah
desc.SampleDesc.Count = 1;
desc.SampleDesc.Quality = 0;
desc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
desc.BufferCount = 2;
desc.BufferCount = 1;
desc.OutputWindow = (HWND)PlatformBackend::d3d11_get_hwnd();
desc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD;
//desc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD;
desc.Windowed = true;
D3D_FEATURE_LEVEL feature_level;
@ -938,28 +967,27 @@ namespace Blah
}
// Depth
// TODO: Doesn't actually assign proper values
// TODO: Cache this
{
if (state.depth_state)
state.depth_state->Release();
D3D11_DEPTH_STENCIL_DESC desc = {};
desc.DepthEnable = FALSE;
desc.DepthWriteMask = D3D11_DEPTH_WRITE_MASK_ALL;
desc.DepthFunc = D3D11_COMPARISON_NEVER;
state.device->CreateDepthStencilState(&desc, &state.depth_state);
ctx->OMSetDepthStencilState(state.depth_state, 0);
auto depthstencil = state.get_depthstencil(pass);
if (depthstencil)
ctx->OMSetDepthStencilState(depthstencil, 0);
}
// Blend Mode
{
auto blend = state.get_blend(pass.blend);
auto color = Color::from_rgba(pass.blend.rgba);
float factor[4]{ color.r / 255.0f, color.g / 255.0f, color.b / 255.0f, color.a / 255.0f };
auto mask = 0xffffffff;
ctx->OMSetBlendState(blend, factor, mask);
if (blend)
{
auto color = Color::from_rgba(pass.blend.rgba);
float factor[4]{ color.r / 255.0f, color.g / 255.0f, color.b / 255.0f, color.a / 255.0f };
auto mask = 0xffffffff;
ctx->OMSetBlendState(blend, factor, mask);
}
else
{
// if we failed to create a blend mode for some reason
ctx->OMSetBlendState(nullptr, nullptr, 0);
}
}
}
@ -1027,21 +1055,24 @@ namespace Blah
}
// Sampler
// TODO: Doesn't actually assign proper values
// TODO: Cache this
// 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])
{
if (state.sampler)
state.sampler->Release();
D3D11_SAMPLER_DESC samplerDesc = {};
samplerDesc.Filter = D3D11_FILTER_MIN_MAG_MIP_POINT;
samplerDesc.AddressU = D3D11_TEXTURE_ADDRESS_WRAP;
samplerDesc.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
samplerDesc.AddressW = D3D11_TEXTURE_ADDRESS_WRAP;
samplerDesc.ComparisonFunc = D3D11_COMPARISON_NEVER;
state.device->CreateSamplerState(&samplerDesc, &state.sampler);
ctx->PSSetSamplers(0, 1, &state.sampler);
auto sampler = state.get_sampler(textures[0]);
if (sampler)
ctx->PSSetSamplers(0, 1, &sampler);
}
}
@ -1072,26 +1103,10 @@ namespace Blah
}
// Rasterizer
// TODO: Doesn't actually assign proper values
// TODO: Cache this
{
if (state.rasterizer)
state.rasterizer->Release();
D3D11_RASTERIZER_DESC rasterizerDesc = {};
rasterizerDesc.FillMode = D3D11_FILL_SOLID;
rasterizerDesc.CullMode = D3D11_CULL_NONE;
rasterizerDesc.FrontCounterClockwise = true;
rasterizerDesc.DepthBias = 0;
rasterizerDesc.DepthBiasClamp = 0;
rasterizerDesc.SlopeScaledDepthBias = 0;
rasterizerDesc.DepthClipEnable = false;
rasterizerDesc.ScissorEnable = pass.has_scissor;
rasterizerDesc.MultisampleEnable = false;
rasterizerDesc.AntialiasedLineEnable = false;
state.device->CreateRasterizerState(&rasterizerDesc, &state.rasterizer);
ctx->RSSetState(state.rasterizer);
auto rasterizer = state.get_rasterizer(pass);
if (rasterizer)
ctx->RSSetState(rasterizer);
}
}
@ -1255,6 +1270,136 @@ namespace Blah
return nullptr;
}
ID3D11SamplerState* D3D11::get_sampler(const TextureRef& texture)
{
auto filter = texture->get_filter();
auto wrap_x = texture->get_wrap_x();
auto wrap_y = texture->get_wrap_y();
for (auto& it : sampler_cache)
if (it.filter == filter && it.wrap_x == wrap_x && it.wrap_y == wrap_y)
return it.state;
D3D11_SAMPLER_DESC desc = {};
desc.Filter = D3D11_FILTER_MIN_MAG_MIP_POINT;
desc.AddressU = D3D11_TEXTURE_ADDRESS_WRAP;
desc.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
desc.AddressW = D3D11_TEXTURE_ADDRESS_WRAP;
desc.ComparisonFunc = D3D11_COMPARISON_NEVER;
switch (filter)
{
case TextureFilter::Nearest: desc.Filter = D3D11_FILTER_MIN_MAG_MIP_POINT; break;
case TextureFilter::Linear: desc.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR; break;
}
switch (wrap_x)
{
case TextureWrap::Clamp: desc.AddressU = D3D11_TEXTURE_ADDRESS_CLAMP; break;
case TextureWrap::Repeat: desc.AddressU = D3D11_TEXTURE_ADDRESS_WRAP; break;
}
switch (wrap_y)
{
case TextureWrap::Clamp: desc.AddressV = D3D11_TEXTURE_ADDRESS_CLAMP; break;
case TextureWrap::Repeat: desc.AddressV = D3D11_TEXTURE_ADDRESS_WRAP; break;
}
ID3D11SamplerState* result;
auto hr = state.device->CreateSamplerState(&desc, &result);
if (SUCCEEDED(hr))
{
auto entry = sampler_cache.expand();
entry->filter = filter;
entry->wrap_x = wrap_x;
entry->wrap_y = wrap_y;
entry->state = result;
return result;
}
return nullptr;
}
ID3D11RasterizerState* D3D11::get_rasterizer(const RenderPass& pass)
{
for (auto& it : rasterizer_cache)
if (it.cull == pass.cull && it.has_scissor == pass.has_scissor)
return it.state;
D3D11_RASTERIZER_DESC desc = {};
desc.FillMode = D3D11_FILL_SOLID;
desc.CullMode = D3D11_CULL_NONE;
switch (pass.cull)
{
case Cull::None: desc.CullMode = D3D11_CULL_NONE; break;
case Cull::Front: desc.CullMode = D3D11_CULL_FRONT; break;
case Cull::Back: desc.CullMode = D3D11_CULL_BACK; break;
}
desc.FrontCounterClockwise = true;
desc.DepthBias = 0;
desc.DepthBiasClamp = 0;
desc.SlopeScaledDepthBias = 0;
desc.DepthClipEnable = false;
desc.ScissorEnable = pass.has_scissor;
desc.MultisampleEnable = false;
desc.AntialiasedLineEnable = false;
ID3D11RasterizerState* result;
auto hr = state.device->CreateRasterizerState(&desc, &result);
if (SUCCEEDED(hr))
{
auto entry = rasterizer_cache.expand();
entry->cull = pass.cull;
entry->has_scissor = pass.has_scissor;
entry->state = result;
return result;
}
return nullptr;
}
ID3D11DepthStencilState* D3D11::get_depthstencil(const RenderPass& pass)
{
for (auto& it : depthstencil_cache)
if (it.depth == pass.depth)
return it.state;
D3D11_DEPTH_STENCIL_DESC desc = {};
desc.DepthEnable = pass.depth != Compare::None;
desc.DepthWriteMask = D3D11_DEPTH_WRITE_MASK_ALL;
desc.DepthFunc = D3D11_COMPARISON_NEVER;
switch (pass.depth)
{
case Compare::None: desc.DepthFunc = D3D11_COMPARISON_NEVER; break;
case Compare::Always: desc.DepthFunc = D3D11_COMPARISON_ALWAYS; break;
case Compare::Never: desc.DepthFunc = D3D11_COMPARISON_NEVER; break;
case Compare::Less: desc.DepthFunc = D3D11_COMPARISON_LESS; break;
case Compare::Equal: desc.DepthFunc = D3D11_COMPARISON_EQUAL; break;
case Compare::LessOrEqual: desc.DepthFunc = D3D11_COMPARISON_LESS_EQUAL; break;
case Compare::Greater: desc.DepthFunc = D3D11_COMPARISON_GREATER; break;
case Compare::NotEqual: desc.DepthFunc = D3D11_COMPARISON_NOT_EQUAL; break;
case Compare::GreatorOrEqual: desc.DepthFunc = D3D11_COMPARISON_GREATER_EQUAL; break;
}
ID3D11DepthStencilState* result;
auto hr = state.device->CreateDepthStencilState(&desc, &result);
if (SUCCEEDED(hr))
{
auto entry = depthstencil_cache.expand();
entry->depth = pass.depth;
entry->state = result;
return result;
}
return nullptr;
}
}
#endif // BLAH_USE_D3D11

8
private/blah/internal/graphics_backend_gl.cpp
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@ -807,13 +807,13 @@ namespace Blah
{
m_id = 0;
if (data->vertex == nullptr)
if (data->vertex.length() <= 0)
{
Log::error("Vertex Shader is required");
return;
}
if (data->fragment == nullptr)
if (data->fragment.length() <= 0)
{
Log::error("Fragment Shader is required");
return;
@ -824,7 +824,7 @@ namespace Blah
GLuint vertex_shader = gl.CreateShader(GL_VERTEX_SHADER);
{
const GLchar* source = (const GLchar*)data->vertex;
const GLchar* source = (const GLchar*)data->vertex.cstr();
gl.ShaderSource(vertex_shader, 1, &source, nullptr);
gl.CompileShader(vertex_shader);
gl.GetShaderInfoLog(vertex_shader, 1024, &log_length, log);
@ -839,7 +839,7 @@ namespace Blah
GLuint fragment_shader = gl.CreateShader(GL_FRAGMENT_SHADER);
{
const GLchar* source = (const GLchar*)data->fragment;
const GLchar* source = (const GLchar*)data->fragment.cstr();
gl.ShaderSource(fragment_shader, 1, &source, nullptr);
gl.CompileShader(fragment_shader);
gl.GetShaderInfoLog(fragment_shader, 1024, &log_length, log);

1
public/blah/graphics/renderpass.h
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@ -29,7 +29,6 @@ namespace Blah
None = 0,
Front = 1,
Back = 2,
Both = 3
};
struct RenderPass

28
public/blah/graphics/shader.cpp
View File

@ -5,5 +5,31 @@ using namespace Blah;
ShaderRef Shader::create(const ShaderData* data)
{
return GraphicsBackend::create_shader(data);
// get the shader
auto shader = GraphicsBackend::create_shader(data);
// validate the shader
if (shader)
{
auto& uniforms = shader->uniforms();
// make sure its uniforms are valid
for (auto& it : uniforms)
if (it.type == UniformType::None)
{
BLAH_ERROR_FMT("Uniform '%s' has an invalid type!\n\tOnly Float/Float2/Float3/Float4/Mat3x2/Mat4x4/Texture are allowed!", it.name.cstr());
return ShaderRef();
}
// make sure uniform names don't overlap
for (int i = 0; i < uniforms.size(); i ++)
for (int j = i + 1; j < uniforms.size(); j ++)
if (uniforms[i].name == uniforms[j].name)
{
BLAH_ERROR_FMT("Shader Uniform names '%s' overlap! All Names must be unique.", uniforms[0].name.cstr());
return ShaderRef();
}
}
return shader;
}

4
public/blah/graphics/shader.h
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@ -59,10 +59,10 @@ namespace Blah
};
// Vertex Shader Program data
const char* vertex;
String vertex;
// Fragment Shader Program data
const char* fragment;
String fragment;
// HLSL Attributes - required for D3D11
StackVector<HLSL_Attribute, 16> hlsl_attributes;

6
public/blah/log.h
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@ -7,6 +7,9 @@
#define BLAH_ERROR(message) \
do { Log::error(message "\n\tin file: %s:%d", __FILE__, __LINE__); abort(); } while(0)
#define BLAH_ERROR_FMT(message, ...) \
do { Log::error(message "\n\tin file: %s:%d", __VA_ARGS__, __FILE__, __LINE__); abort(); } while(0)
#define BLAH_ASSERT(condition, message) \
do { if (!(condition)) { BLAH_ERROR(message); } } while(0)
@ -15,6 +18,9 @@
#define BLAH_ERROR(message) \
Log::error(message "\n\tin file: %s:%d", __FILE__, __LINE__)
#define BLAH_ERROR_FMT(message, ...) \
Log::error(message "\n\tin file: %s:%d", __VA_ARGS__, __FILE__, __LINE__)
#define BLAH_ASSERT(condition, message) \
do { } while(false)