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https://github.com/hrydgard/ppsspp.git
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Henrik RydgårdandClaude Opus 5.5
16ed2ad55a
thin3d on Metal, plus a small render manager that owns frames, command buffers, lazily started render passes and a per-frame push buffer. Shaders are the same Vulkan GLSL the Vulkan backend gets, translated to MSL through glslang and SPIRV-Cross, with the Vulkan binding numbers as Metal buffer/texture indices. flip_vert_y makes Metal's clip space match Vulkan's, so everything else follows the Vulkan conventions. Adds GPUBackend::METAL (4) and builds the files on Apple platforms. Not yet selectable: the SDL window setup, the UI choice and the GPU core come next. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
55 lines
1.9 KiB
C++
55 lines
1.9 KiB
C++
// Copyright (c) 2012- PPSSPP Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0 or later versions.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official git repository and contact information can be found at
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// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
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#pragma once
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// Plain C++, so it can be used from the platform code.
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#include "Common/GPU/GraphicsContext.h"
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class MetalRenderManager;
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class MetalGraphicsContext : public GraphicsContext {
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public:
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MetalGraphicsContext() {}
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~MetalGraphicsContext() override;
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// Renders into a texture of this size instead of a layer (headless). Call before InitAPI.
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void SetOffscreen(int width, int height) {
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offscreenWidth_ = width;
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offscreenHeight_ = height;
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}
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bool InitAPI(void *wnd, std::string *deviceName, std::string *errorMessage) override;
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// data1 is the CAMetalLayer (bridged), unless offscreen.
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bool InitSurface(WindowSystem winsys, void *data1, void *data2, std::string *errorMessage) override;
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void ShutdownSurface() override;
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void ShutdownAPI() override;
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void Resize() override;
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void *GetAPIContext() override { return renderManager_; }
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Draw::DrawContext *GetDrawContext() override { return draw_; }
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private:
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void *device_ = nullptr; // Retained id<MTLDevice>.
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void *layer_ = nullptr; // Not retained, owned by the view.
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MetalRenderManager *renderManager_ = nullptr;
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Draw::DrawContext *draw_ = nullptr;
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int offscreenWidth_ = 0;
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int offscreenHeight_ = 0;
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};
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