84 lines
2 KiB
C++
84 lines
2 KiB
C++
#include <d3dcompiler.h>
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#include <renderer/dx/shader.hpp>
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#include <renderer/dx/shared_context.hpp>
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namespace lt {
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dxShader::dxShader(
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BasicFileHandle vertexFile,
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BasicFileHandle pixelFile,
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Ref<dxSharedContext> sharedContext
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)
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: m_context(sharedContext)
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, m_vertex_shader(nullptr)
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, m_pixel_shader(nullptr)
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, m_vertex_blob(nullptr)
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{
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auto ps = Microsoft::WRL::ComPtr<ID3DBlob> { nullptr };
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auto vsErr = Microsoft::WRL::ComPtr<ID3DBlob> { nullptr };
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auto psErr = Microsoft::WRL::ComPtr<ID3DBlob> { nullptr };
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// compile shaders (we don't use dxc here because if d3_d_compile fails it throws a dxException
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// without logging the vsErr/psErr
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d3_d_compile(
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vertexFile.GetData(),
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vertexFile.get_size(),
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NULL,
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nullptr,
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nullptr,
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"main",
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"vs_4_0",
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NULL,
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NULL,
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&m_vertex_blob,
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&vsErr
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);
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d3_d_compile(
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pixelFile.GetData(),
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pixelFile.get_size(),
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NULL,
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nullptr,
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nullptr,
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"main",
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"ps_4_0",
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NULL,
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NULL,
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&ps,
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&psErr
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);
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// check
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lt_assert(!vsErr.Get(), "Vertex shader compile error: {}", (char *)vsErr->GetBufferPointer());
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lt_assert(!psErr.Get(), "Pixels shader compile error: {}", (char *)psErr->GetBufferPointer());
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// create shaders
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auto hr = HRESULT {};
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dxc(m_context->get_device()->CreateVertexShader(
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m_vertex_blob->GetBufferPointer(),
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m_vertex_blob->GetBufferSize(),
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NULL,
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&m_vertex_shader
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));
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dxc(m_context->get_device()
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->CreatePixelShader(ps->GetBufferPointer(), ps->GetBufferSize(), NULL, &m_pixel_shader)
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);
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}
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dxShader::~dxShader()
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{
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un_bind();
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}
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void dxShader::bind()
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{
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m_context->get_device_context()->VSSetShader(m_vertex_shader.Get(), nullptr, 0u);
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m_context->get_device_context()->PSSetShader(m_pixel_shader.Get(), nullptr, 0u);
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}
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void dxShader::un_bind()
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{
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m_context->get_device_context()->VSSetShader(nullptr, nullptr, 0u);
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m_context->get_device_context()->PSSetShader(nullptr, nullptr, 0u);
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}
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} // namespace lt
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