mirror of
https://github.com/melonDS-emu/melonDS.git
synced 2025-07-27 00:00:07 -06:00
Clean up the 3D renderer for enhanced flexibility (#1895)
* Give `GPU2D::Unit` a virtual destructor - Undefined behavior avoided! * Add an `array2d` alias * Move various parts of `GPU2D::SoftRenderer` to `constexpr` - `SoftRenderer::MosaicTable` is now initialized at compile-time - Most of the `SoftRenderer::Color*` functions are now `constexpr` - The aforementioned functions are used with a constant value in at least one place, so they'll be at least partially computed at compile-time * Generalize `GLRenderer::PrepareCaptureFrame` - Declare it in the base `Renderer3D` class, but make it empty * Remove unneeded `virtual` specifiers * Store `Framebuffer`'s memory in `unique_ptr`s - Reduce the risk of leaks this way * Clean up how `GLCompositor` is initialized - Return it as an `std::optional` instead of a `std::unique_ptr` - Make `GLCompositor` movable - Replace `GLCompositor`'s plain arrays with `std::array` to simplify moving * Pass `GPU` to `GLCompositor`'s important functions instead of passing it to the constructor * Move `GLCompositor` to be a field within `GLRenderer` - Some methods were moved up and made `virtual` * Fix some linker errors * Set the renderer in the frontend * Remove unneeded `virtual` specifiers * Remove `RenderSettings` in favor of just exposing the relevant member variables * Update the frontend to accommodate the core changes * Add `constexpr` and `const` to places in the interpolator * Qualify references to `size_t` * Construct the `optional` directly instead of using `make_optional` - It makes the Linux build choke - I think it's because `GLCompositor`'s constructor is `private`
This commit is contained in:
Jesse Talavera-Greenberg
committed by
GitHub
GitHub
parent
e973236203
commit
7caddf9615
150
src/GPU.cpp
150
src/GPU.cpp
@ -24,7 +24,6 @@
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#include "GPU2D_Soft.h"
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#include "GPU3D_Soft.h"
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#include "GPU3D_OpenGL.h"
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namespace melonDS
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{
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@ -64,33 +63,24 @@ enum
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VRAMDirty need to be reset for the respective VRAM bank.
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*/
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GPU::GPU(melonDS::NDS& nds) noexcept : NDS(nds), GPU2D_A(0, *this), GPU2D_B(1, *this), GPU3D(nds)
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GPU::GPU(melonDS::NDS& nds, std::unique_ptr<Renderer3D>&& renderer3d, std::unique_ptr<GPU2D::Renderer2D>&& renderer2d) noexcept :
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NDS(nds),
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GPU2D_A(0, *this),
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GPU2D_B(1, *this),
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GPU3D(nds, renderer3d ? std::move(renderer3d) : std::make_unique<SoftRenderer>(*this)),
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GPU2D_Renderer(renderer2d ? std::move(renderer2d) : std::make_unique<GPU2D::SoftRenderer>(*this))
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{
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NDS.RegisterEventFunc(Event_LCD, LCD_StartHBlank, MemberEventFunc(GPU, StartHBlank));
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NDS.RegisterEventFunc(Event_LCD, LCD_StartScanline, MemberEventFunc(GPU, StartScanline));
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NDS.RegisterEventFunc(Event_LCD, LCD_FinishFrame, MemberEventFunc(GPU, FinishFrame));
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NDS.RegisterEventFunc(Event_DisplayFIFO, 0, MemberEventFunc(GPU, DisplayFIFO));
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GPU2D_Renderer = std::make_unique<GPU2D::SoftRenderer>(*this);
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FrontBuffer = 0;
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Framebuffer[0][0] = NULL; Framebuffer[0][1] = NULL;
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Framebuffer[1][0] = NULL; Framebuffer[1][1] = NULL;
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Renderer = 0;
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}
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GPU::~GPU() noexcept
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{
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// All unique_ptr fields are automatically cleaned up
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if (Framebuffer[0][0]) delete[] Framebuffer[0][0];
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if (Framebuffer[0][1]) delete[] Framebuffer[0][1];
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if (Framebuffer[1][0]) delete[] Framebuffer[1][0];
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if (Framebuffer[1][1]) delete[] Framebuffer[1][1];
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Framebuffer[0][0] = nullptr;
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Framebuffer[0][1] = nullptr;
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Framebuffer[1][0] = nullptr;
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Framebuffer[1][1] = nullptr;
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NDS.UnregisterEventFunc(Event_LCD, LCD_StartHBlank);
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NDS.UnregisterEventFunc(Event_LCD, LCD_StartScanline);
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@ -198,9 +188,7 @@ void GPU::Reset() noexcept
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GPU3D.Reset();
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int backbuf = FrontBuffer ? 0 : 1;
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GPU2D_Renderer->SetFramebuffer(Framebuffer[backbuf][1], Framebuffer[backbuf][0]);
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ResetRenderer();
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GPU2D_Renderer->SetFramebuffer(Framebuffer[backbuf][1].get(), Framebuffer[backbuf][0].get());
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ResetVRAMCache();
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@ -216,17 +204,12 @@ void GPU::Stop() noexcept
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else
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fbsize = 256 * 192;
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memset(Framebuffer[0][0], 0, fbsize*4);
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memset(Framebuffer[0][1], 0, fbsize*4);
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memset(Framebuffer[1][0], 0, fbsize*4);
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memset(Framebuffer[1][1], 0, fbsize*4);
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memset(Framebuffer[0][0].get(), 0, fbsize*4);
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memset(Framebuffer[0][1].get(), 0, fbsize*4);
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memset(Framebuffer[1][0].get(), 0, fbsize*4);
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memset(Framebuffer[1][1].get(), 0, fbsize*4);
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#ifdef OGLRENDERER_ENABLED
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// This needs a better way to know that we're
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// using the OpenGL renderer specifically
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if (GPU3D.IsRendererAccelerated())
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CurGLCompositor->Stop();
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#endif
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GPU3D.Stop();
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}
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void GPU::DoSavestate(Savestate* file) noexcept
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@ -300,78 +283,20 @@ void GPU::AssignFramebuffers() noexcept
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int backbuf = FrontBuffer ? 0 : 1;
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if (NDS.PowerControl9 & (1<<15))
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{
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GPU2D_Renderer->SetFramebuffer(Framebuffer[backbuf][0], Framebuffer[backbuf][1]);
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GPU2D_Renderer->SetFramebuffer(Framebuffer[backbuf][0].get(), Framebuffer[backbuf][1].get());
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}
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else
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{
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GPU2D_Renderer->SetFramebuffer(Framebuffer[backbuf][1], Framebuffer[backbuf][0]);
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GPU2D_Renderer->SetFramebuffer(Framebuffer[backbuf][1].get(), Framebuffer[backbuf][0].get());
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}
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}
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void GPU::InitRenderer(int renderer) noexcept
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void GPU::SetRenderer3D(std::unique_ptr<Renderer3D>&& renderer) noexcept
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{
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#ifdef OGLRENDERER_ENABLED
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if (renderer == 1)
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{
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CurGLCompositor = GLCompositor::New(*this);
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// Create opengl renderer
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if (!CurGLCompositor)
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{
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// Fallback on software renderer
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renderer = 0;
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GPU3D.SetCurrentRenderer(std::make_unique<SoftRenderer>(*this));
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}
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GPU3D.SetCurrentRenderer(GLRenderer::New(*this));
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if (!GPU3D.GetCurrentRenderer())
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{
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// Fallback on software renderer
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CurGLCompositor.reset();
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renderer = 0;
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GPU3D.SetCurrentRenderer(std::make_unique<SoftRenderer>(*this));
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}
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}
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else
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#endif
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{
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if (renderer == nullptr)
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GPU3D.SetCurrentRenderer(std::make_unique<SoftRenderer>(*this));
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}
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Renderer = renderer;
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}
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void GPU::DeInitRenderer() noexcept
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{
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// Delete the 3D renderer, if it exists
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GPU3D.SetCurrentRenderer(nullptr);
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#ifdef OGLRENDERER_ENABLED
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// Delete the compositor, if one exists
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CurGLCompositor.reset();
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#endif
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}
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void GPU::ResetRenderer() noexcept
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{
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if (Renderer == 0)
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{
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GPU3D.GetCurrentRenderer()->Reset();
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}
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#ifdef OGLRENDERER_ENABLED
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else
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{
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CurGLCompositor->Reset();
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GPU3D.GetCurrentRenderer()->Reset();
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}
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#endif
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}
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void GPU::SetRenderSettings(int renderer, RenderSettings& settings) noexcept
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{
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if (renderer != Renderer)
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{
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DeInitRenderer();
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InitRenderer(renderer);
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}
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GPU3D.SetCurrentRenderer(std::move(renderer));
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int fbsize;
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if (GPU3D.IsRendererAccelerated())
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@ -379,34 +304,17 @@ void GPU::SetRenderSettings(int renderer, RenderSettings& settings) noexcept
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else
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fbsize = 256 * 192;
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if (Framebuffer[0][0]) { delete[] Framebuffer[0][0]; Framebuffer[0][0] = nullptr; }
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if (Framebuffer[1][0]) { delete[] Framebuffer[1][0]; Framebuffer[1][0] = nullptr; }
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if (Framebuffer[0][1]) { delete[] Framebuffer[0][1]; Framebuffer[0][1] = nullptr; }
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if (Framebuffer[1][1]) { delete[] Framebuffer[1][1]; Framebuffer[1][1] = nullptr; }
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Framebuffer[0][0] = std::make_unique<u32[]>(fbsize);
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Framebuffer[1][0] = std::make_unique<u32[]>(fbsize);
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Framebuffer[0][1] = std::make_unique<u32[]>(fbsize);
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Framebuffer[1][1] = std::make_unique<u32[]>(fbsize);
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Framebuffer[0][0] = new u32[fbsize];
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Framebuffer[1][0] = new u32[fbsize];
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Framebuffer[0][1] = new u32[fbsize];
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Framebuffer[1][1] = new u32[fbsize];
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memset(Framebuffer[0][0], 0, fbsize*4);
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memset(Framebuffer[1][0], 0, fbsize*4);
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memset(Framebuffer[0][1], 0, fbsize*4);
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memset(Framebuffer[1][1], 0, fbsize*4);
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memset(Framebuffer[0][0].get(), 0, fbsize*4);
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memset(Framebuffer[1][0].get(), 0, fbsize*4);
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memset(Framebuffer[0][1].get(), 0, fbsize*4);
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memset(Framebuffer[1][1].get(), 0, fbsize*4);
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AssignFramebuffers();
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if (Renderer == 0)
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{
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GPU3D.GetCurrentRenderer()->SetRenderSettings(settings);
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}
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#ifdef OGLRENDERER_ENABLED
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else
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{
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CurGLCompositor->SetRenderSettings(settings);
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GPU3D.GetCurrentRenderer()->SetRenderSettings(settings);
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}
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#endif
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}
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@ -1026,8 +934,8 @@ void GPU::BlankFrame() noexcept
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else
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fbsize = 256 * 192;
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memset(Framebuffer[backbuf][0], 0, fbsize*4);
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memset(Framebuffer[backbuf][1], 0, fbsize*4);
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memset(Framebuffer[backbuf][0].get(), 0, fbsize*4);
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memset(Framebuffer[backbuf][1].get(), 0, fbsize*4);
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FrontBuffer = backbuf;
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AssignFramebuffers();
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@ -1123,11 +1031,9 @@ void GPU::StartScanline(u32 line) noexcept
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GPU2D_B.VBlank();
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GPU3D.VBlank();
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#ifdef OGLRENDERER_ENABLED
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// Need a better way to identify the openGL renderer in particular
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if (GPU3D.IsRendererAccelerated())
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CurGLCompositor->RenderFrame();
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#endif
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GPU3D.Blit();
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}
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}
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