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e5fb9c9adf
Avoid waiting for earlier submissions when we flush more often. The vertex manager will flush more often if the game accesses the EFB on the CPU, to give the GPU a head start.
96 lines
3.3 KiB
C++
96 lines
3.3 KiB
C++
// Copyright 2016 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <cstddef>
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#include "Common/BitField.h"
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#include "Common/CommonTypes.h"
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#include "VideoBackends/Vulkan/VulkanLoader.h"
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namespace Vulkan
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{
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// Number of command buffers.
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constexpr size_t NUM_COMMAND_BUFFERS = 8;
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// Number of frames in flight, will be used to decide how many descriptor pools are used
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constexpr size_t NUM_FRAMES_IN_FLIGHT = 2;
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// Staging buffer usage - optimize for uploads or readbacks
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enum STAGING_BUFFER_TYPE
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{
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STAGING_BUFFER_TYPE_UPLOAD,
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STAGING_BUFFER_TYPE_READBACK
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};
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// Descriptor set layouts
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enum DESCRIPTOR_SET_LAYOUT
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{
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DESCRIPTOR_SET_LAYOUT_STANDARD_UNIFORM_BUFFERS,
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DESCRIPTOR_SET_LAYOUT_STANDARD_SAMPLERS,
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DESCRIPTOR_SET_LAYOUT_STANDARD_SHADER_STORAGE_BUFFERS,
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DESCRIPTOR_SET_LAYOUT_UTILITY_UNIFORM_BUFFER,
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DESCRIPTOR_SET_LAYOUT_UTILITY_SAMPLERS,
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DESCRIPTOR_SET_LAYOUT_COMPUTE,
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NUM_DESCRIPTOR_SET_LAYOUTS
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};
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// We use four pipeline layouts:
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// - Standard
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// - Per-stage UBO (VS/GS/PS, VS constants accessible from PS) [set=0, binding=0-2]
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// - 8 combined image samplers (accessible from PS) [set=1, binding=0-7]
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// - 1 SSBO accessible from PS if supported [set=2, binding=0]
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// - Uber
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// - Like standard, plus 1 SSBO accessible from VS if supported [set=2, binding=1]
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// - Utility
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// - 1 combined UBO, accessible from VS/GS/PS [set=0, binding=0]
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// - 8 combined image samplers (accessible from PS) [set=1, binding=0-7]
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// - 1 texel buffer (accessible from PS) [set=1, binding=8]
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// - Compute
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// - 1 uniform buffer [set=0, binding=0]
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// - 2 combined image samplers [set=0, binding=1-2]
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// - 2 texel buffers [set=0, binding=3-4]
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// - 1 storage image [set=0, binding=5]
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//
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// All four pipeline layout share the first two descriptor sets (uniform buffers, PS samplers).
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// The third descriptor set (see bind points above) is used for storage or texel buffers.
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//
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enum PIPELINE_LAYOUT
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{
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PIPELINE_LAYOUT_STANDARD,
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PIPELINE_LAYOUT_UBER,
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PIPELINE_LAYOUT_UTILITY,
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PIPELINE_LAYOUT_COMPUTE,
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NUM_PIPELINE_LAYOUTS
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};
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// Uniform buffer bindings within the first descriptor set
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enum UNIFORM_BUFFER_DESCRIPTOR_SET_BINDING
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{
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UBO_DESCRIPTOR_SET_BINDING_PS,
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UBO_DESCRIPTOR_SET_BINDING_VS,
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UBO_DESCRIPTOR_SET_BINDING_GS,
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NUM_UBO_DESCRIPTOR_SET_BINDINGS
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};
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// Maximum number of attributes per vertex (we don't have any more than this?)
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constexpr u32 MAX_VERTEX_ATTRIBUTES = 16;
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// Number of pixel shader texture slots
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constexpr u32 NUM_PIXEL_SHADER_SAMPLERS = 8;
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constexpr u32 NUM_COMPUTE_SHADER_SAMPLERS = 2;
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// Number of texel buffer binding points.
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constexpr u32 NUM_COMPUTE_TEXEL_BUFFERS = 2;
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// Textures that don't fit into this buffer will be uploaded with a separate buffer (see below).
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constexpr u32 TEXTURE_UPLOAD_BUFFER_SIZE = 32 * 1024 * 1024;
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// Textures greater than 1024*1024 will be put in staging textures that are released after
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// execution instead. A 2048x2048 texture is 16MB, and we'd only fit four of these in our
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// streaming buffer and be blocking frequently. Games are unlikely to have textures this
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// large anyway, so it's only really an issue for HD texture packs, and memory is not
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// a limiting factor in these scenarios anyway.
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constexpr u32 STAGING_TEXTURE_UPLOAD_THRESHOLD = 1024 * 1024 * 4;
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} // namespace Vulkan
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