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LibretroAdmin
82611ed0b0
Of it, the backends read the EFB scale, now passed as the backbuffer scale; GLContext::Create tested for libretro, its only context; and the controller interface kept a render window that is always null. The video backends' Initialize, InitBackendInfo and PopulateBackendInfo, Core::Init, EmuThread and StartEmuThread, BootCore and the controller interface lose the parameter; PrepareWindow, ChangeWindow, the window change refresh and the Vulkan instance's surface extensions go, as nothing presents but the frontend.
87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
// Copyright 2015 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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// Null Backend Documentation
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// This backend tries not to do anything in the backend,
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// but everything in VideoCommon.
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#include "VideoBackends/Null/VideoBackend.h"
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#include "Common/Common.h"
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#include "VideoBackends/Null/NullGfx.h"
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#include "VideoBackends/Null/NullVertexManager.h"
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#include "VideoCommon/BoundingBox.h"
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#include "VideoCommon/PerfQueryBase.h"
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#include "VideoCommon/VideoCommon.h"
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#include "VideoCommon/VideoConfig.h"
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namespace Null
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{
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void VideoBackend::InitBackendInfo()
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{
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g_backend_info.api_type = APIType::Nothing;
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g_backend_info.MaxTextureSize = 16384;
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g_backend_info.bSupportsExclusiveFullscreen = true;
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g_backend_info.bSupportsDualSourceBlend = true;
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g_backend_info.bSupportsPrimitiveRestart = true;
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g_backend_info.bSupportsGeometryShaders = true;
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g_backend_info.bSupportsComputeShaders = false;
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g_backend_info.bSupports3DVision = false;
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g_backend_info.bSupportsEarlyZ = true;
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g_backend_info.bSupportsBindingLayout = true;
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g_backend_info.bSupportsBBox = true;
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g_backend_info.bSupportsGSInstancing = true;
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g_backend_info.bSupportsPaletteConversion = true;
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g_backend_info.bSupportsClipControl = true;
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g_backend_info.bSupportsSSAA = true;
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g_backend_info.bSupportsDepthClamp = true;
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g_backend_info.bSupportsReversedDepthRange = true;
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g_backend_info.bSupportsMultithreading = false;
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g_backend_info.bSupportsGPUTextureDecoding = false;
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g_backend_info.bSupportsST3CTextures = false;
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g_backend_info.bSupportsBPTCTextures = false;
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g_backend_info.bSupportsFramebufferFetch = false;
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g_backend_info.bSupportsBackgroundCompiling = false;
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g_backend_info.bSupportsLogicOp = false;
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g_backend_info.bSupportsLargePoints = false;
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g_backend_info.bSupportsDepthReadback = false;
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g_backend_info.bSupportsPartialDepthCopies = false;
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g_backend_info.bSupportsShaderBinaries = false;
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g_backend_info.bSupportsPipelineCacheData = false;
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g_backend_info.bSupportsCoarseDerivatives = false;
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g_backend_info.bSupportsTextureQueryLevels = false;
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g_backend_info.bSupportsLodBiasInSampler = false;
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g_backend_info.bSupportsSettingObjectNames = false;
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g_backend_info.bSupportsPartialMultisampleResolve = true;
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g_backend_info.bSupportsDynamicVertexLoader = false;
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// aamodes: We only support 1 sample, so no MSAA
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g_backend_info.Adapters.clear();
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g_backend_info.AAModes = {1};
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}
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bool VideoBackend::Initialize(float backbuffer_scale)
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{
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AbstractGfx* const gfx = new NullGfx();
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VertexManagerBase* const vertex_manager = new VertexManager();
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PerfQueryBase* const perf_query = new PerfQueryBase();
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BoundingBox* const bounding_box = new BoundingBox();
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return InitializeShared(gfx, vertex_manager, perf_query, bounding_box);
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}
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void VideoBackend::Shutdown()
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{
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ShutdownShared();
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}
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std::string VideoBackend::GetDisplayName() const
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{
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// i18n: Null is referring to the null video backend, which renders nothing
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return _trans("Null");
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}
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} // namespace Null
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