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Henrik RydgårdandClaude Opus 5.5
1d7487e5a7
GPU_Null derives straight from GPUCommon and has no thin3d context, framebuffer manager, texture cache or shaders. It runs display lists with the flow control, bounding boxes, matrix loads (the hardware backends'), immediate vertices and block transfers of the others, moves the vertex and index pointers past each draw and curve, and charges the per-vertex and fill cost the software renderer does. A DrawEngineCommon that queues nothing provides the vertex decoders. It's for measuring the CPU emulation. From savestates, God of War, Tekken 6, Wipeout Pure and LocoRoco flip the same frames in 10 emulated seconds as with Vulkan and software, in 44-77% fewer instructions than Vulkan. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
27 lines
1.1 KiB
C++
27 lines
1.1 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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class GPUCommon;
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class GraphicsContext;
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// A GPU that runs display lists (flow control, bounding boxes, matrices, block transfers, the vertex and
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// index pointers moving past each draw, and the GE timing) but draws nothing, and needs no thin3d context.
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// For measuring the CPU emulation without graphics work in the way (headless --graphics=null).
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GPUCommon *CreateNullGPU(GraphicsContext *gfxCtx);
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