snes9x/win32/CVulkan.cpp

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#include "CVulkan.h"
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#include "../vulkan/slang_shader.hpp"
#include "snes9x.h"
#include <win32_display.h>
#include <gfx.h>
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#include "../filter/hq2x.h"
#include "../filter/2xsai.h"
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bool CVulkan::Initialize(HWND hWnd)
{
this->hWnd = hWnd;
RECT window_rect;
GetWindowRect(hWnd, &window_rect);
current_width = window_rect.right - window_rect.left;
current_height = window_rect.bottom - window_rect.top;
context = std::make_unique<Vulkan::Context>();
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if (!context->init_win32(0, hWnd))
return false;
swapchain = context->swapchain.get();
device = context->device;
create_pipeline();
descriptors.clear();
for (size_t i = 0; i < swapchain->get_num_frames(); i++)
{
vk::DescriptorSetAllocateInfo dsai{};
dsai
.setDescriptorPool(context->descriptor_pool.get())
.setDescriptorSetCount(1)
.setSetLayouts(descriptor_set_layout.get());
auto descriptor = device.allocateDescriptorSetsUnique(dsai);
descriptors.push_back(std::move(descriptor[0]));
}
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textures.clear();
textures.resize(swapchain->get_num_frames());
for (auto& t : textures)
{
t.init(context.get());
t.create(256, 224, vk::Format::eR5G6B5UnormPack16, vk::SamplerAddressMode::eClampToEdge, Settings.BilinearFilter, false);
}
vk::SamplerCreateInfo sci{};
sci.setAddressModeU(vk::SamplerAddressMode::eClampToEdge)
.setAddressModeV(vk::SamplerAddressMode::eClampToEdge)
.setAddressModeW(vk::SamplerAddressMode::eClampToEdge)
.setMipmapMode(vk::SamplerMipmapMode::eLinear)
.setAnisotropyEnable(false)
.setMinFilter(vk::Filter::eLinear)
.setMagFilter(vk::Filter::eLinear)
.setUnnormalizedCoordinates(false)
.setMinLod(1.0f)
.setMaxLod(1.0f)
.setMipLodBias(0.0)
.setCompareEnable(false);
linear_sampler = device.createSampler(sci);
sci.setMinFilter(vk::Filter::eNearest)
.setMagFilter(vk::Filter::eNearest);
nearest_sampler = device.createSampler(sci);
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return true;
}
void CVulkan::DeInitialize()
{
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if (!context)
return;
context->wait_idle();
textures.clear();
descriptors.clear();
device.destroySampler(linear_sampler);
device.destroySampler(nearest_sampler);
swapchain = nullptr;
descriptor_set_layout.reset();
pipeline_layout.reset();
pipeline.reset();
textures.clear();
descriptors.clear();
filtered_image.clear();
context.reset();
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}
void CVulkan::Render(SSurface Src)
{
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if (!context)
return;
if (GUI.ReduceInputLag)
device.waitIdle();
SSurface Dst;
RECT dstRect = GetFilterOutputSize(Src);
Dst.Width = dstRect.right - dstRect.left;
Dst.Height = dstRect.bottom - dstRect.top;
Dst.Pitch = Dst.Width << 1;
size_t requiredSize = Dst.Width * Dst.Height;
if (filtered_image.size() < requiredSize)
filtered_image.resize(requiredSize * 2);
Dst.Surface = (unsigned char *)filtered_image.data();
RenderMethod(Src, Dst, &dstRect);
if (!Settings.AutoDisplayMessages) {
WinSetCustomDisplaySurface((void*)Dst.Surface, Dst.Pitch / 2, dstRect.right - dstRect.left, dstRect.bottom - dstRect.top, GetFilterScale(GUI.Scale));
S9xDisplayMessages((uint16*)Dst.Surface, Dst.Pitch / 2, dstRect.right - dstRect.left, dstRect.bottom - dstRect.top, GetFilterScale(GUI.Scale));
}
RECT windowSize, displayRect;
GetClientRect(hWnd, &windowSize);
//Get maximum rect respecting AR setting
displayRect = CalculateDisplayRect(Dst.Width, Dst.Height, windowSize.right, windowSize.bottom);
if (!swapchain->begin_frame())
return;
auto& tex = textures[swapchain->get_current_frame()];
auto& cmd = swapchain->get_cmd();
auto extents = swapchain->get_extents();
auto& dstset = descriptors[swapchain->get_current_frame()].get();
tex.from_buffer(cmd, (uint8_t*)filtered_image.data(), Dst.Width, Dst.Height, Dst.Pitch);
swapchain->begin_render_pass();
vk::DescriptorImageInfo dii{};
dii.setImageView(tex.image_view)
.setSampler(Settings.BilinearFilter ? linear_sampler : nearest_sampler)
.setImageLayout(vk::ImageLayout::eShaderReadOnlyOptimal);
vk::WriteDescriptorSet wds{};
wds.setDescriptorCount(1)
.setDstBinding(0)
.setDstArrayElement(0)
.setDstSet(dstset)
.setDescriptorType(vk::DescriptorType::eCombinedImageSampler)
.setImageInfo(dii);
device.updateDescriptorSets(wds, {});
cmd.bindPipeline(vk::PipelineBindPoint::eGraphics, pipeline.get());
cmd.bindDescriptorSets(vk::PipelineBindPoint::eGraphics, pipeline_layout.get(), 0, dstset, {});
cmd.setViewport(0, vk::Viewport(displayRect.left, displayRect.top, displayRect.right - displayRect.left, displayRect.bottom - displayRect.top, 0.0f, 1.0f));
cmd.setScissor(0, vk::Rect2D({}, extents));
cmd.draw(3, 1, 0, 0);
swapchain->end_render_pass();
swapchain->end_frame();
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}
bool CVulkan::ChangeRenderSize(unsigned int newWidth, unsigned int newHeight)
{
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if (!context)
return false;
bool vsync_changed = context->swapchain->set_vsync(GUI.Vsync);
if (newWidth != current_width || newHeight != current_height || vsync_changed)
{
context->recreate_swapchain(newWidth, newHeight);
context->wait_idle();
current_width = newWidth;
current_height = newHeight;
}
context->swapchain->set_vsync(GUI.Vsync);
return true;
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}
bool CVulkan::ApplyDisplayChanges(void)
{
return false;
}
bool CVulkan::SetFullscreen(bool fullscreen)
{
return false;
}
void CVulkan::SetSnes9xColorFormat()
{
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GUI.ScreenDepth = 16;
GUI.BlueShift = 0;
GUI.GreenShift = 6;
GUI.RedShift = 11;
S9xBlit2xSaIFilterInit();
S9xBlitHQ2xFilterInit();
GUI.NeedDepthConvert = FALSE;
GUI.DepthConverted = TRUE;
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}
void CVulkan::EnumModes(std::vector<dMode>* modeVector)
{
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DISPLAY_DEVICE dd;
dd.cb = sizeof(dd);
DWORD dev = 0;
int iMode = 0;
dMode mode;
while (EnumDisplayDevices(0, dev, &dd, 0))
{
if (!(dd.StateFlags & DISPLAY_DEVICE_MIRRORING_DRIVER) && (dd.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE))
{
DEVMODE dm;
memset(&dm, 0, sizeof(dm));
dm.dmSize = sizeof(dm);
iMode = 0;
while (EnumDisplaySettings(dd.DeviceName, iMode, &dm)) {
if (dm.dmBitsPerPel >= 32) {
mode.width = dm.dmPelsWidth;
mode.height = dm.dmPelsHeight;
mode.rate = dm.dmDisplayFrequency;
mode.depth = dm.dmBitsPerPel;
modeVector->push_back(mode);
}
iMode++;
}
}
dev++;
}
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}
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static const char* vertex_shader = R"(
#version 450
layout(location = 0) out vec2 texcoord;
vec2 positions[3] = vec2[](vec2(-1.0, -3.0), vec2(3.0, 1.0), vec2(-1.0, 1.0));
vec2 texcoords[3] = vec2[](vec2(0.0, -1.0), vec2(2.0, 1.0), vec2(0.0, 1.0));
void main()
{
gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
texcoord = texcoords[gl_VertexIndex];
}
)";
static const char* fragment_shader = R"(
#version 450
layout(location = 0) in vec2 texcoord;
layout(binding = 0) uniform sampler2D tsampler;
layout(location = 0) out vec4 fragcolor;
void main()
{
fragcolor = texture(tsampler, texcoord);
}
)";
void CVulkan::create_pipeline()
{
auto vertex_spirv = SlangShader::generate_spirv(vertex_shader, "vertex");
auto fragment_spirv = SlangShader::generate_spirv(fragment_shader, "fragment");
auto vertex_module = device.createShaderModuleUnique({ {}, vertex_spirv });
auto fragment_module = device.createShaderModuleUnique({ {}, fragment_spirv });
vk::PipelineShaderStageCreateInfo vertex_ci;
vertex_ci.setStage(vk::ShaderStageFlagBits::eVertex)
.setModule(vertex_module.get())
.setPName("main");
vk::PipelineShaderStageCreateInfo fragment_ci;
fragment_ci.setStage(vk::ShaderStageFlagBits::eFragment)
.setModule(fragment_module.get())
.setPName("main");
std::vector<vk::PipelineShaderStageCreateInfo> stages = { vertex_ci, fragment_ci };
vk::PipelineVertexInputStateCreateInfo vertex_input_info{};
vk::PipelineInputAssemblyStateCreateInfo pipeline_input_assembly_info{};
pipeline_input_assembly_info.setTopology(vk::PrimitiveTopology::eTriangleList)
.setPrimitiveRestartEnable(false);
std::vector<vk::Viewport> viewports(1);
viewports[0]
.setX(0.0f)
.setY(0.0f)
.setWidth(256)
.setHeight(256)
.setMinDepth(0.0f)
.setMaxDepth(1.0f);
std::vector<vk::Rect2D> scissors(1);
scissors[0].extent.width = 256;
scissors[0].extent.height = 256;
scissors[0].offset = vk::Offset2D(0, 0);
vk::PipelineViewportStateCreateInfo pipeline_viewport_info;
pipeline_viewport_info.setViewports(viewports)
.setScissors(scissors);
vk::PipelineRasterizationStateCreateInfo rasterizer_info;
rasterizer_info.setCullMode(vk::CullModeFlagBits::eBack)
.setFrontFace(vk::FrontFace::eClockwise)
.setLineWidth(1.0f)
.setDepthClampEnable(false)
.setRasterizerDiscardEnable(false)
.setPolygonMode(vk::PolygonMode::eFill)
.setDepthBiasEnable(false)
.setRasterizerDiscardEnable(false);
vk::PipelineMultisampleStateCreateInfo multisample_info;
multisample_info.setSampleShadingEnable(false)
.setRasterizationSamples(vk::SampleCountFlagBits::e1);
vk::PipelineDepthStencilStateCreateInfo depth_stencil_info;
depth_stencil_info.setDepthTestEnable(false);
vk::PipelineColorBlendAttachmentState blend_attachment_info;
blend_attachment_info
.setColorWriteMask(vk::ColorComponentFlagBits::eB |
vk::ColorComponentFlagBits::eG |
vk::ColorComponentFlagBits::eR |
vk::ColorComponentFlagBits::eA)
.setBlendEnable(true)
.setColorBlendOp(vk::BlendOp::eAdd)
.setSrcColorBlendFactor(vk::BlendFactor::eSrcAlpha)
.setDstColorBlendFactor(vk::BlendFactor::eOneMinusSrcAlpha)
.setAlphaBlendOp(vk::BlendOp::eAdd)
.setSrcAlphaBlendFactor(vk::BlendFactor::eOne)
.setSrcAlphaBlendFactor(vk::BlendFactor::eZero);
vk::PipelineColorBlendStateCreateInfo blend_state_info;
blend_state_info.setLogicOpEnable(false)
.setAttachments(blend_attachment_info);
std::vector<vk::DynamicState> states = { vk::DynamicState::eViewport, vk::DynamicState::eScissor };
vk::PipelineDynamicStateCreateInfo dynamic_state_info({}, states);
vk::DescriptorSetLayoutBinding dslb{};
dslb.setBinding(0)
.setStageFlags(vk::ShaderStageFlagBits::eFragment)
.setDescriptorCount(1)
.setDescriptorType(vk::DescriptorType::eCombinedImageSampler);
vk::DescriptorSetLayoutCreateInfo dslci{};
dslci.setBindings(dslb);
descriptor_set_layout = device.createDescriptorSetLayoutUnique(dslci);
vk::PipelineLayoutCreateInfo pipeline_layout_info;
pipeline_layout_info.setSetLayoutCount(0)
.setPushConstantRangeCount(0)
.setSetLayouts(descriptor_set_layout.get());
pipeline_layout = device.createPipelineLayoutUnique(pipeline_layout_info);
vk::GraphicsPipelineCreateInfo pipeline_create_info;
pipeline_create_info.setStageCount(2)
.setStages(stages)
.setPVertexInputState(&vertex_input_info)
.setPInputAssemblyState(&pipeline_input_assembly_info)
.setPViewportState(&pipeline_viewport_info)
.setPRasterizationState(&rasterizer_info)
.setPMultisampleState(&multisample_info)
.setPDepthStencilState(&depth_stencil_info)
.setPColorBlendState(&blend_state_info)
.setPDynamicState(&dynamic_state_info)
.setLayout(pipeline_layout.get())
.setRenderPass(swapchain->get_render_pass())
.setSubpass(0);
auto [result, pipeline] = device.createGraphicsPipelineUnique(nullptr, pipeline_create_info);
this->pipeline = std::move(pipeline);
}