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love/src/modules/graphics/vulkan/Graphics.cpp
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/**
* Copyright (c) 2006-2024 LOVE Development Team
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
**/
#include "common/Exception.h"
#include "common/pixelformat.h"
#include "common/version.h"
#include "common/memory.h"
#include "window/Window.h"
#include "Buffer.h"
#include "Graphics.h"
#include "GraphicsReadback.h"
#include "Shader.h"
#include "Vulkan.h"
#include <SDL3/SDL_vulkan.h>
#include <SDL3/SDL_hints.h>
#include <algorithm>
#include <vector>
#include <cstring>
#include <set>
#include <sstream>
#include <array>
#define VOLK_IMPLEMENTATION
#include "libraries/volk/volk.h"
#define VMA_IMPLEMENTATION
#include "libraries/vma/vk_mem_alloc.h"
namespace love
{
namespace graphics
{
namespace vulkan
{
static const std::vector<const char*> validationLayers = {
"VK_LAYER_KHRONOS_validation"
};
static const std::vector<const char*> deviceExtensions = {
VK_KHR_SWAPCHAIN_EXTENSION_NAME,
};
constexpr int DEFAULT_VERTEX_BUFFER_BINDING = 0;
constexpr int VERTEX_BUFFER_BINDING_START = 1;
VkDevice Graphics::getDevice() const
{
return device;
}
VmaAllocator Graphics::getVmaAllocator() const
{
return vmaAllocator;
}
static void checkOptionalInstanceExtensions(OptionalInstanceExtensions& ext)
{
uint32_t count;
vkEnumerateInstanceExtensionProperties(nullptr, &count, nullptr);
std::vector<VkExtensionProperties> extensions(count);
vkEnumerateInstanceExtensionProperties(nullptr, &count, extensions.data());
for (const auto& extension : extensions)
{
if (strcmp(extension.extensionName, VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME) == 0)
ext.physicalDeviceProperties2 = true;
if (strcmp(extension.extensionName, VK_EXT_DEBUG_UTILS_EXTENSION_NAME) == 0)
ext.debugInfo = true;
}
}
Graphics::Graphics()
: love::graphics::Graphics("love.graphics.vulkan")
{
if (!SDL_Vulkan_LoadLibrary(nullptr))
throw love::Exception("could not find vulkan");
volkInitializeCustom((PFN_vkGetInstanceProcAddr)SDL_Vulkan_GetVkGetInstanceProcAddr());
if (isDebugEnabled() && !checkValidationSupport())
{
SDL_Vulkan_UnloadLibrary();
throw love::Exception("validation layers requested, but not available");
}
VkApplicationInfo appInfo{};
appInfo.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
appInfo.pApplicationName = "LOVE";
appInfo.applicationVersion = VK_MAKE_API_VERSION(0, 1, 0, 0); // get this version from somewhere else?
appInfo.pEngineName = "LOVE Game Framework";
appInfo.engineVersion = VK_MAKE_API_VERSION(0, VERSION_MAJOR, VERSION_MINOR, VERSION_REV);
appInfo.apiVersion = VK_API_VERSION_1_3;
VkInstanceCreateInfo createInfo{};
createInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
createInfo.pApplicationInfo = &appInfo;
createInfo.pNext = nullptr;
// GetInstanceExtensions works with a null window parameter as long as
// SDL_Vulkan_LoadLibrary has been called (which we do earlier).
unsigned int count = 0;
char const* const* extensions_string = SDL_Vulkan_GetInstanceExtensions(&count);
if (extensions_string == nullptr)
{
SDL_Vulkan_UnloadLibrary();
throw love::Exception("couldn't retrieve sdl vulkan extensions");
}
std::vector<const char*> extensions(extensions_string, extensions_string + count);
checkOptionalInstanceExtensions(optionalInstanceExtensions);
if (optionalInstanceExtensions.physicalDeviceProperties2)
extensions.push_back(VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME);
if (optionalInstanceExtensions.debugInfo)
extensions.push_back(VK_EXT_DEBUG_UTILS_EXTENSION_NAME);
createInfo.enabledExtensionCount = static_cast<uint32_t>(extensions.size());
createInfo.ppEnabledExtensionNames = extensions.data();
if (isDebugEnabled())
{
createInfo.enabledLayerCount = static_cast<uint32_t>(validationLayers.size());
createInfo.ppEnabledLayerNames = validationLayers.data();
}
if (vkCreateInstance(&createInfo, nullptr, &instance) != VK_SUCCESS)
{
SDL_Vulkan_UnloadLibrary();
throw love::Exception("couldn't create vulkan instance");
}
volkLoadInstance(instance);
uint32_t deviceCount = 0;
vkEnumeratePhysicalDevices(instance, &deviceCount, nullptr);
int maxScore = 0;
if (deviceCount > 0)
{
std::vector<VkPhysicalDevice> devices(deviceCount);
vkEnumeratePhysicalDevices(instance, &deviceCount, devices.data());
// This is imperfect because we can't query a swap chain at this point.
// In theory it could cause a device to have a non-zero score here and
// no devices to have a non-zero score later in setMode, but hopefully
// that won't happen in practice...
for (const auto &device : devices)
maxScore = std::max(maxScore, rateDeviceSuitability(device, false));
}
// Exit here if there are no suitable devices, to let other backends take over.
if (maxScore == 0)
{
vkDestroyInstance(instance, nullptr);
SDL_Vulkan_UnloadLibrary();
throw love::Exception("no suitable vulkan physical devices found");
}
}
Graphics::~Graphics()
{
defaultVertexBuffer.set(nullptr);
localUniformBuffer.set(nullptr);
Volatile::unloadAll();
cleanup();
vkDestroyInstance(instance, nullptr);
SDL_Vulkan_UnloadLibrary();
}
// START OVERRIDEN FUNCTIONS
love::graphics::Texture *Graphics::newTexture(const love::graphics::Texture::Settings &settings, const love::graphics::Texture::Slices *data)
{
return new Texture(this, settings, data);
}
love::graphics::Texture *Graphics::newTextureView(love::graphics::Texture *base, const Texture::ViewSettings &viewsettings)
{
return new Texture(this, base, viewsettings);
}
love::graphics::Buffer *Graphics::newBuffer(const love::graphics::Buffer::Settings &settings, const std::vector<love::graphics::Buffer::DataDeclaration> &format, const void *data, size_t size, size_t arraylength)
{
return new Buffer(this, settings, format, data, size, arraylength);
}
void Graphics::clear(OptionalColorD color, OptionalInt stencil, OptionalDouble depth)
{
if (!color.hasValue && !stencil.hasValue && !depth.hasValue)
return;
std::vector<OptionalColorD> colors;
if (color.hasValue)
colors.resize(std::max(1, (int)states.back().renderTargets.colors.size()), color);
clear(colors, stencil, depth);
}
void Graphics::clear(const std::vector<OptionalColorD> &colors, OptionalInt stencil, OptionalDouble depth)
{
if (colors.empty() && !stencil.hasValue && !depth.hasValue)
return;
flushBatchedDraws();
const auto &rts = states.back().renderTargets;
bool rtactive = isRenderTargetActive();
size_t ncolorbuffers = rtactive ? rts.colors.size() : 1;
size_t ncolors = std::min(ncolorbuffers, colors.size());
if (renderPassState.active)
{
std::vector<VkClearAttachment> attachments;
for (size_t i = 0; i < ncolors; i++)
{
const OptionalColorD &color = colors[i];
VkClearAttachment attachment{};
if (color.hasValue)
{
auto texture = i < rts.colors.size() ? rts.colors[i].texture.get() : nullptr;
attachment.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
attachment.clearValue.color = Texture::getClearColor(texture, color.value);
}
attachments.push_back(attachment);
}
VkClearAttachment depthStencilAttachment{};
auto dstexture = rts.depthStencil.texture.get();
if (stencil.hasValue)
{
if ((!rtactive && backbufferHasStencil)
|| (dstexture && isPixelFormatStencil(dstexture->getPixelFormat())) || (rts.temporaryRTFlags & TEMPORARY_RT_STENCIL) != 0)
{
depthStencilAttachment.aspectMask |= VK_IMAGE_ASPECT_STENCIL_BIT;
depthStencilAttachment.clearValue.depthStencil.stencil = static_cast<uint32_t>(stencil.value);
}
}
if (depth.hasValue)
{
if ((!rtactive && backbufferHasDepth)
|| (dstexture && isPixelFormatDepth(dstexture->getPixelFormat())) || (rts.temporaryRTFlags & TEMPORARY_RT_DEPTH) != 0)
{
depthStencilAttachment.aspectMask |= VK_IMAGE_ASPECT_DEPTH_BIT;
depthStencilAttachment.clearValue.depthStencil.depth = static_cast<float>(depth.value);
}
}
if (depthStencilAttachment.aspectMask != 0)
attachments.push_back(depthStencilAttachment);
VkClearRect rect{};
rect.layerCount = 1;
rect.rect.extent.width = static_cast<uint32_t>(renderPassState.width);
rect.rect.extent.height = static_cast<uint32_t>(renderPassState.height);
vkCmdClearAttachments(
commandBuffers[currentFrame],
static_cast<uint32_t>(attachments.size()), attachments.data(),
1, &rect);
}
else
{
for (size_t i = 0; i < ncolors; i++)
{
if (colors[i].hasValue)
{
renderPassState.renderPassConfiguration.colorAttachments[i].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
auto texture = i < rts.colors.size() ? rts.colors[i].texture.get() : nullptr;
renderPassState.clearColors[i].color = Texture::getClearColor(texture, colors[i].value);
}
}
if (depth.hasValue)
{
renderPassState.renderPassConfiguration.staticData.depthStencilAttachment.depthLoadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
renderPassState.clearColors[ncolorbuffers].depthStencil.depth = static_cast<float>(depth.value);
}
if (stencil.hasValue)
{
renderPassState.renderPassConfiguration.staticData.depthStencilAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
renderPassState.clearColors[ncolorbuffers].depthStencil.stencil = static_cast<uint32_t>(stencil.value);
}
if (renderPassState.isWindow)
{
renderPassState.windowClearRequested = true;
renderPassState.mainWindowClearColorValue = colors.empty() ? OptionalColorD() : colors[0];
renderPassState.mainWindowClearDepthValue = depth;
renderPassState.mainWindowClearStencilValue = stencil;
}
else
startRenderPass();
}
}
void Graphics::discard(const std::vector<bool> &colorbuffers, bool depthstencil)
{
if (renderPassState.active)
endRenderPass();
auto &renderPassConfiguration = renderPassState.renderPassConfiguration;
for (size_t i = 0; i < colorbuffers.size(); i++)
{
if (colorbuffers[i])
renderPassConfiguration.colorAttachments[i].loadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
}
if (depthstencil)
{
renderPassConfiguration.staticData.depthStencilAttachment.depthLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
renderPassConfiguration.staticData.depthStencilAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
}
startRenderPass();
}
void Graphics::submitGpuCommands(SubmitMode submitMode, void *screenshotCallbackData)
{
flushBatchedDraws();
if (renderPassState.active)
endRenderPass();
VkBuffer screenshotBuffer = VK_NULL_HANDLE;
VmaAllocation screenshotAllocation = VK_NULL_HANDLE;
VmaAllocationInfo screenshotAllocationInfo = {};
if (submitMode == SUBMIT_PRESENT)
{
VkImage backbufferImage = fakeBackbuffer != nullptr ? (VkImage)fakeBackbuffer->getRenderTargetHandle() : swapChainImages.at(imageIndex);
if (pendingScreenshotCallbacks.empty())
{
if (fakeBackbuffer == nullptr)
{
Vulkan::cmdTransitionImageLayout(
commandBuffers.at(currentFrame),
backbufferImage,
swapChainPixelFormat, true,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
VK_IMAGE_LAYOUT_PRESENT_SRC_KHR);
}
}
else
{
VkBufferCreateInfo bufferInfo{};
bufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
bufferInfo.size = 4ll * swapChainExtent.width * swapChainExtent.height;
bufferInfo.usage = VK_BUFFER_USAGE_TRANSFER_DST_BIT;
bufferInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
VmaAllocationCreateInfo allocCreateInfo{};
allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO;
allocCreateInfo.flags = VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT | VMA_ALLOCATION_CREATE_MAPPED_BIT;
auto result = vmaCreateBuffer(
vmaAllocator,
&bufferInfo,
&allocCreateInfo,
&screenshotBuffer,
&screenshotAllocation,
&screenshotAllocationInfo);
if (result != VK_SUCCESS)
throw love::Exception("failed to create screenshot readback buffer");
Vulkan::cmdTransitionImageLayout(
commandBuffers.at(currentFrame),
backbufferImage,
swapChainPixelFormat, true,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL);
VkBufferImageCopy region{};
region.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
region.imageSubresource.layerCount = 1;
region.imageExtent = {
swapChainExtent.width,
swapChainExtent.height,
1
};
vkCmdCopyImageToBuffer(
commandBuffers.at(currentFrame),
backbufferImage,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
screenshotBuffer,
1, &region);
Vulkan::cmdTransitionImageLayout(
commandBuffers.at(currentFrame),
backbufferImage,
swapChainPixelFormat, true,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
fakeBackbuffer == nullptr ? VK_IMAGE_LAYOUT_PRESENT_SRC_KHR : VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
}
}
endRecordingGraphicsCommands();
if (!imagesInFlight.empty())
{
if (imagesInFlight[imageIndex] != VK_NULL_HANDLE)
vkWaitForFences(device, 1, &imagesInFlight.at(imageIndex), VK_TRUE, UINT64_MAX);
imagesInFlight[imageIndex] = inFlightFences[currentFrame];
}
std::array<VkCommandBuffer, 1> submitCommandbuffers = { commandBuffers.at(currentFrame) };
VkSubmitInfo submitInfo{};
submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
VkSemaphore waitSemaphores[] = { imageAvailableSemaphores.at(currentFrame) };
VkPipelineStageFlags waitStages[] = { VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT };
if (imageRequested)
{
submitInfo.waitSemaphoreCount = 1;
submitInfo.pWaitSemaphores = waitSemaphores;
submitInfo.pWaitDstStageMask = waitStages;
imageRequested = false;
}
submitInfo.commandBufferCount = static_cast<uint32_t>(submitCommandbuffers.size());
submitInfo.pCommandBuffers = submitCommandbuffers.data();
VkSemaphore signalSemaphores[] = { renderFinishedSemaphores.at(currentFrame) };
VkFence fence = VK_NULL_HANDLE;
if (submitMode == SUBMIT_PRESENT)
{
if (!swapChainImages.empty())
{
submitInfo.signalSemaphoreCount = 1;
submitInfo.pSignalSemaphores = signalSemaphores;
}
vkResetFences(device, 1, &inFlightFences[currentFrame]);
fence = inFlightFences[currentFrame];
}
if (vkQueueSubmit(graphicsQueue, 1, &submitInfo, fence) != VK_SUCCESS)
throw love::Exception("failed to submit draw command buffer");
if (submitMode == SUBMIT_NOPRESENT || submitMode == SUBMIT_RESTART || screenshotBuffer != VK_NULL_HANDLE)
{
vkQueueWaitIdle(graphicsQueue);
for (auto &callbacks : readbackCallbacks)
{
for (const auto &callback : callbacks)
callback();
callbacks.clear();
}
if (screenshotBuffer != VK_NULL_HANDLE)
{
auto imageModule = Module::getInstance<love::image::Image>(M_IMAGE);
for (int i = 0; i < (int)pendingScreenshotCallbacks.size(); i++)
{
const auto &info = pendingScreenshotCallbacks[i];
image::ImageData *img = nullptr;
try
{
img = imageModule->newImageData(
swapChainExtent.width,
swapChainExtent.height,
PIXELFORMAT_RGBA8_UNORM,
screenshotAllocationInfo.pMappedData);
}
catch (love::Exception &)
{
info.callback(&info, nullptr, nullptr);
for (int j = i + 1; j < (int)pendingScreenshotCallbacks.size(); j++)
{
const auto& ninfo = pendingScreenshotCallbacks[j];
ninfo.callback(&ninfo, nullptr, nullptr);
}
vmaDestroyBuffer(vmaAllocator, screenshotBuffer, screenshotAllocation);
pendingScreenshotCallbacks.clear();
throw;
}
uint8 *screenshot = (uint8*)img->getData();
if (swapChainImageFormat == VK_FORMAT_B8G8R8A8_UNORM || swapChainImageFormat == VK_FORMAT_B8G8R8A8_SRGB)
{
// Convert from BGRA to RGBA and replace alpha with full opacity.
for (size_t i = 0; i < img->getSize(); i += 4)
{
uint8 r = screenshot[i + 2];
screenshot[i + 2] = screenshot[i + 0];
screenshot[i + 0] = r;
screenshot[i + 3] = 255;
}
}
else
{
// Replace alpha with full opacity.
for (size_t i = 0; i < img->getSize(); i += 4)
screenshot[i + 3] = 255;
}
info.callback(&info, img, screenshotCallbackData);
img->release();
}
vmaDestroyBuffer(vmaAllocator, screenshotBuffer, screenshotAllocation);
pendingScreenshotCallbacks.clear();
}
if (submitMode == SUBMIT_RESTART)
startRecordingGraphicsCommands();
}
}
void Graphics::present(void *screenshotCallbackdata)
{
if (!isActive())
return;
if (isRenderTargetActive())
throw love::Exception("present cannot be called while a render target is active.");
if (!renderPassState.active && renderPassState.windowClearRequested)
startRenderPass();
deprecations.draw(this);
submitGpuCommands(SUBMIT_PRESENT, screenshotCallbackdata);
VkResult result = VK_SUCCESS;
if (!swapChainImages.empty())
{
VkPresentInfoKHR presentInfo{};
presentInfo.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
presentInfo.waitSemaphoreCount = 1;
presentInfo.pWaitSemaphores = &renderFinishedSemaphores.at(currentFrame);
presentInfo.swapchainCount = 1;
presentInfo.pSwapchains = &swapChain;
presentInfo.pImageIndices = &imageIndex;
result = vkQueuePresentKHR(presentQueue, &presentInfo);
}
else
{
// Presenting without a real swap chain can happen if the window is minimized.
// Check every frame to see if a proper one can be created, in this situation.
VkSurfaceCapabilitiesKHR capabilities = {};
if (vkGetPhysicalDeviceSurfaceCapabilitiesKHR(physicalDevice, surface, &capabilities) == VK_SUCCESS)
{
VkExtent2D extent = chooseSwapExtent(capabilities);
if (extent.width > 0 && extent.height > 0)
swapChainRecreationRequested = true;
}
}
if (result == VK_ERROR_OUT_OF_DATE_KHR || result == VK_SUBOPTIMAL_KHR || swapChainRecreationRequested)
{
swapChainRecreationRequested = false;
recreateSwapChain();
}
else if (result != VK_SUCCESS)
throw love::Exception("failed to present swap chain image");
for (love::graphics::StreamBuffer *buffer : batchedDrawState.vb)
buffer->nextFrame();
batchedDrawState.indexBuffer->nextFrame();
drawCalls = 0;
renderTargetSwitchCount = 0;
drawCallsBatched = 0;
updatePendingReadbacks();
updateTemporaryResources();
currentFrame = (currentFrame + 1) % MAX_FRAMES_IN_FLIGHT;
realFrameIndex++;
beginFrame();
}
void Graphics::backbufferChanged(int width, int height, int pixelwidth, int pixelheight, bool backbufferstencil, bool backbufferdepth, int msaa)
{
if (swapChain != VK_NULL_HANDLE && (pixelwidth != this->pixelWidth || pixelheight != this->pixelHeight || width != this->width || height != this->height
|| backbufferstencil != this->backbufferHasStencil || backbufferdepth != this->backbufferHasDepth || msaa != requestedMsaa))
requestSwapchainRecreation();
this->width = width;
this->height = height;
this->pixelWidth = pixelwidth;
this->pixelHeight = pixelheight;
this->backbufferHasStencil = backbufferstencil;
this->backbufferHasDepth = backbufferdepth;
this->requestedMsaa = msaa;
if (!isRenderTargetActive())
resetProjection();
if (swapChain != VK_NULL_HANDLE)
msaaSamples = getMsaaCount(requestedMsaa);
// Don't wait until the next frame starts to recreate the swapchain - doing so
// will cause a 1 frame delay in the backbuffer size on resize, and it can cause
// MSAA state to get out of sync for a frame.
if (swapChainRecreationRequested)
{
swapChainRecreationRequested = false;
submitGpuCommands(SUBMIT_NOPRESENT);
recreateSwapChain();
beginSwapChainFrame();
}
}
bool Graphics::setMode(void *context, int width, int height, int pixelwidth, int pixelheight, bool backbufferstencil, bool backbufferdepth, int msaa)
{
// Must be called before the swapchain is created.
backbufferChanged(width, height, pixelwidth, pixelheight, backbufferstencil, backbufferdepth, msaa);
cleanUpFunctions.clear();
cleanUpFunctions.resize(MAX_FRAMES_IN_FLIGHT);
readbackCallbacks.clear();
readbackCallbacks.resize(MAX_FRAMES_IN_FLIGHT);
bool createBaseObjects = physicalDevice == VK_NULL_HANDLE;
createSurface();
if (createBaseObjects)
{
pickPhysicalDevice();
createLogicalDevice();
createPipelineCache();
initVMA();
initCapabilities();
}
msaaSamples = getMsaaCount(requestedMsaa);
createSwapChain();
createImageViews();
createColorResources();
createDepthResources();
transitionColorDepthLayouts = true;
if (createBaseObjects)
{
createCommandPool();
createCommandBuffers();
createSyncObjects();
}
if (localUniformBuffer == nullptr)
localUniformBuffer.set(new StreamBuffer(this, BUFFERUSAGE_UNIFORM, 1024 * 512 * 1), Acquire::NORETAIN);
beginFrame();
if (createBaseObjects)
{
if (batchedDrawState.vb[0] == nullptr)
{
// Initial sizes that should be good enough for most cases. It will
// resize to fit if needed, later.
batchedDrawState.vb[0] = new StreamBuffer(this, BUFFERUSAGE_VERTEX, 1024 * 1024 * 1);
batchedDrawState.vb[1] = new StreamBuffer(this, BUFFERUSAGE_VERTEX, 256 * 1024 * 1);
batchedDrawState.indexBuffer = new StreamBuffer(this, BUFFERUSAGE_INDEX, sizeof(uint16) * LOVE_UINT16_MAX);
}
if (defaultVertexBuffer == nullptr)
{
struct DefaultData
{
float floats[4];
int ints[4];
float color[4];
} data;
data.floats[0] = 0.0f;
data.floats[1] = 0.0f;
data.floats[2] = 0.0f;
data.floats[3] = 1.0f;
data.ints[0] = 0;
data.ints[1] = 0;
data.ints[2] = 0;
data.ints[3] = 1;
data.color[0] = 1.0f;
data.color[1] = 1.0f;
data.color[2] = 1.0f;
data.color[3] = 1.0f;
std::vector<Buffer::DataDeclaration> format = {
Buffer::DataDeclaration("Floats", DATAFORMAT_FLOAT_VEC4),
Buffer::DataDeclaration("Ints", DATAFORMAT_INT32_VEC4),
Buffer::DataDeclaration("Color", DATAFORMAT_FLOAT_VEC4)
};
Buffer::Settings settings(BUFFERUSAGEFLAG_VERTEX, BUFFERDATAUSAGE_STATIC);
defaultVertexBuffer.set(newBuffer(settings, format, &data, sizeof(DefaultData), 1), Acquire::NORETAIN);
VkBuffer buffer = (VkBuffer)defaultVertexBuffer->getHandle();
VkDeviceSize offset = 0;
vkCmdBindVertexBuffers(commandBuffers.at(currentFrame), DEFAULT_VERTEX_BUFFER_BINDING, 1, &buffer, &offset);
}
createDefaultShaders();
Shader::current = Shader::standardShaders[Shader::StandardShader::STANDARD_DEFAULT];
createQuadIndexBuffer();
createFanIndexBuffer();
currentFrame = 0;
}
restoreState(states.back());
Vulkan::resetShaderSwitches();
created = true;
drawCalls = 0;
drawCallsBatched = 0;
return true;
}
void Graphics::initCapabilities()
{
capabilities.features[FEATURE_MULTI_RENDER_TARGET_FORMATS] = true;
capabilities.features[FEATURE_CLAMP_ZERO] = true;
capabilities.features[FEATURE_CLAMP_ONE] = true;
capabilities.features[FEATURE_LIGHTEN] = true;
capabilities.features[FEATURE_FULL_NPOT] = true;
capabilities.features[FEATURE_PIXEL_SHADER_HIGHP] = true;
capabilities.features[FEATURE_SHADER_DERIVATIVES] = true;
capabilities.features[FEATURE_GLSL3] = true;
capabilities.features[FEATURE_GLSL4] = true;
capabilities.features[FEATURE_INSTANCING] = true;
capabilities.features[FEATURE_TEXEL_BUFFER] = true;
capabilities.features[FEATURE_COPY_TEXTURE_TO_BUFFER] = true;
capabilities.features[FEATURE_INDIRECT_DRAW] = true;
static_assert(FEATURE_MAX_ENUM == 13, "Graphics::initCapabilities must be updated when adding a new graphics feature!");
VkPhysicalDeviceProperties properties;
vkGetPhysicalDeviceProperties(physicalDevice, &properties);
capabilities.limits[LIMIT_POINT_SIZE] = properties.limits.pointSizeRange[1];
capabilities.limits[LIMIT_TEXTURE_SIZE] = properties.limits.maxImageDimension2D;
capabilities.limits[LIMIT_TEXTURE_LAYERS] = properties.limits.maxImageArrayLayers;
capabilities.limits[LIMIT_VOLUME_TEXTURE_SIZE] = properties.limits.maxImageDimension3D;
capabilities.limits[LIMIT_CUBE_TEXTURE_SIZE] = properties.limits.maxImageDimensionCube;
capabilities.limits[LIMIT_TEXEL_BUFFER_SIZE] = properties.limits.maxTexelBufferElements;
capabilities.limits[LIMIT_SHADER_STORAGE_BUFFER_SIZE] = properties.limits.maxStorageBufferRange;
capabilities.limits[LIMIT_THREADGROUPS_X] = properties.limits.maxComputeWorkGroupCount[0];
capabilities.limits[LIMIT_THREADGROUPS_Y] = properties.limits.maxComputeWorkGroupCount[1];
capabilities.limits[LIMIT_THREADGROUPS_Z] = properties.limits.maxComputeWorkGroupCount[2];
capabilities.limits[LIMIT_RENDER_TARGETS] = properties.limits.maxColorAttachments;
capabilities.limits[LIMIT_TEXTURE_MSAA] = static_cast<double>(getMsaaCount(64));
capabilities.limits[LIMIT_ANISOTROPY] = properties.limits.maxSamplerAnisotropy;
static_assert(LIMIT_MAX_ENUM == 13, "Graphics::initCapabilities must be updated when adding a new system limit!");
capabilities.textureTypes[TEXTURE_2D] = true;
capabilities.textureTypes[TEXTURE_2D_ARRAY] = true;
capabilities.textureTypes[TEXTURE_VOLUME] = true;
capabilities.textureTypes[TEXTURE_CUBE] = true;
}
void Graphics::getAPIStats(int &shaderswitches) const
{
shaderswitches = static_cast<int>(Vulkan::getNumShaderSwitches());
}
void Graphics::unSetMode()
{
if (created)
submitGpuCommands(SUBMIT_NOPRESENT);
created = false;
cleanupSwapChain();
vkDestroySurfaceKHR(instance, surface, nullptr);
}
void Graphics::setActive(bool enable)
{
flushBatchedDraws();
active = enable;
}
int Graphics::getRequestedBackbufferMSAA() const
{
return requestedMsaa;
}
int Graphics::getBackbufferMSAA() const
{
return static_cast<int>(msaaSamples);
}
void Graphics::setFrontFaceWinding(Winding winding)
{
const auto& currentState = states.back();
if (currentState.winding == winding)
return;
flushBatchedDraws();
states.back().winding = winding;
if (optionalDeviceExtensions.extendedDynamicState)
vkCmdSetFrontFaceEXT(
commandBuffers.at(currentFrame),
Vulkan::getFrontFace(winding));
}
void Graphics::setColorMask(ColorChannelMask mask)
{
flushBatchedDraws();
states.back().colorMask = mask;
}
void Graphics::setBlendState(const BlendState &blend)
{
flushBatchedDraws();
states.back().blend = blend;
}
void Graphics::setPointSize(float size)
{
if (size != states.back().pointSize)
flushBatchedDraws();
states.back().pointSize = size;
}
bool Graphics::usesGLSLES() const
{
return false;
}
Graphics::RendererInfo Graphics::getRendererInfo() const
{
VkPhysicalDeviceProperties deviceProperties;
vkGetPhysicalDeviceProperties(physicalDevice, &deviceProperties);
Graphics::RendererInfo info;
info.name = "Vulkan";
info.device = deviceProperties.deviceName;
info.vendor = Vulkan::getVendorName(deviceProperties.vendorID);
info.version = Vulkan::getVulkanApiVersion(deviceProperties.apiVersion);
return info;
}
void Graphics::draw(const DrawCommand &cmd)
{
prepareDraw(cmd.attributesID, *cmd.buffers, cmd.texture, cmd.primitiveType, cmd.cullMode);
if (cmd.indirectBuffer != nullptr)
{
vkCmdDrawIndirect(
commandBuffers.at(currentFrame),
(VkBuffer) cmd.indirectBuffer->getHandle(),
cmd.indirectBufferOffset,
1,
0);
}
else
{
vkCmdDraw(
commandBuffers.at(currentFrame),
(uint32) cmd.vertexCount,
(uint32) cmd.instanceCount,
(uint32) cmd.vertexStart,
0);
}
drawCalls++;
}
void Graphics::draw(const DrawIndexedCommand &cmd)
{
prepareDraw(cmd.attributesID, *cmd.buffers, cmd.texture, cmd.primitiveType, cmd.cullMode);
vkCmdBindIndexBuffer(
commandBuffers.at(currentFrame),
(VkBuffer) cmd.indexBuffer->getHandle(),
(VkDeviceSize) cmd.indexBufferOffset,
Vulkan::getVulkanIndexBufferType(cmd.indexType));
if (cmd.indirectBuffer != nullptr)
{
vkCmdDrawIndexedIndirect(
commandBuffers.at(currentFrame),
(VkBuffer) cmd.indirectBuffer->getHandle(),
cmd.indirectBufferOffset,
1,
0);
}
else
{
vkCmdDrawIndexed(
commandBuffers.at(currentFrame),
(uint32) cmd.indexCount,
(uint32) cmd.instanceCount,
0,
0,
0);
}
drawCalls++;
}
void Graphics::drawQuads(int start, int count, VertexAttributesID attributesID, const BufferBindings &buffers, graphics::Texture *texture)
{
const int MAX_VERTICES_PER_DRAW = LOVE_UINT16_MAX;
const int MAX_QUADS_PER_DRAW = MAX_VERTICES_PER_DRAW / 4;
prepareDraw(attributesID, buffers, texture, PRIMITIVE_TRIANGLES, CULL_NONE);
vkCmdBindIndexBuffer(
commandBuffers.at(currentFrame),
(VkBuffer)quadIndexBuffer->getHandle(),
0,
Vulkan::getVulkanIndexBufferType(INDEX_UINT16));
int baseVertex = start * 4;
for (int quadindex = 0; quadindex < count; quadindex += MAX_QUADS_PER_DRAW)
{
int quadcount = std::min(MAX_QUADS_PER_DRAW, count - quadindex);
vkCmdDrawIndexed(
commandBuffers.at(currentFrame),
static_cast<uint32_t>(quadcount * 6),
1,
0,
baseVertex,
0);
baseVertex += quadcount * 4;
drawCalls++;
}
}
void Graphics::setColor(Colorf c)
{
c.r = std::min(std::max(c.r, 0.0f), 1.0f);
c.g = std::min(std::max(c.g, 0.0f), 1.0f);
c.b = std::min(std::max(c.b, 0.0f), 1.0f);
c.a = std::min(std::max(c.a, 0.0f), 1.0f);
states.back().color = c;
}
void Graphics::applyScissor()
{
VkRect2D scissor{};
bool win = renderPassState.isWindow;
scissor.extent.width = win ? swapChainExtent.width : renderPassState.width;
scissor.extent.height = win ? swapChainExtent.height : renderPassState.height;
if (states.back().scissor)
{
const Rect &rect = states.back().scissorRect;
double dpiScale = getCurrentDPIScale();
int minScissorX = (int)(rect.x * dpiScale);
int minScissorY = (int)(rect.y * dpiScale);
int maxScissorX = minScissorX + (int)(rect.w * dpiScale) - 1;
int maxScissorY = minScissorY + (int)(rect.h * dpiScale) - 1;
// Avoid negative offsets.
int minX = std::max(scissor.offset.x, minScissorX);
int minY = std::max(scissor.offset.y, minScissorY);
int maxX = std::min(scissor.offset.x + (int)scissor.extent.width - 1, maxScissorX);
int maxY = std::min(scissor.offset.y + (int)scissor.extent.height - 1, maxScissorY);
if (maxX >= minX && maxY >= minY)
{
scissor.offset.x = minX;
scissor.offset.y = minY;
scissor.extent.width = (maxX - minX) + 1;
scissor.extent.height = (maxY - minY) + 1;
}
else
{
scissor.extent.width = 0;
scissor.extent.height = 0;
}
}
vkCmdSetScissor(commandBuffers.at(currentFrame), 0, 1, &scissor);
}
void Graphics::setScissor(const Rect &rect)
{
flushBatchedDraws();
states.back().scissor = true;
states.back().scissorRect = rect;
if (renderPassState.active)
applyScissor();
}
void Graphics::setScissor()
{
flushBatchedDraws();
states.back().scissor = false;
if (renderPassState.active)
applyScissor();
}
void Graphics::setStencilState(const StencilState &s)
{
validateStencilState(s);
flushBatchedDraws();
vkCmdSetStencilWriteMask(commandBuffers.at(currentFrame), VK_STENCIL_FRONT_AND_BACK, s.writeMask);
vkCmdSetStencilCompareMask(commandBuffers.at(currentFrame), VK_STENCIL_FRONT_AND_BACK, s.readMask);
vkCmdSetStencilReference(commandBuffers.at(currentFrame), VK_STENCIL_FRONT_AND_BACK, s.value);
if (optionalDeviceExtensions.extendedDynamicState)
vkCmdSetStencilOpEXT(
commandBuffers.at(currentFrame),
VK_STENCIL_FRONT_AND_BACK,
VK_STENCIL_OP_KEEP, Vulkan::getStencilOp(s.action),
VK_STENCIL_OP_KEEP, Vulkan::getCompareOp(getReversedCompareMode(s.compare)));
states.back().stencil = s;
}
void Graphics::setDepthMode(CompareMode compare, bool write)
{
validateDepthState(write);
flushBatchedDraws();
if (optionalDeviceExtensions.extendedDynamicState)
{
vkCmdSetDepthCompareOpEXT(
commandBuffers.at(currentFrame), Vulkan::getCompareOp(compare));
vkCmdSetDepthWriteEnableEXT(
commandBuffers.at(currentFrame), Vulkan::getBool(write));
}
states.back().depthTest = compare;
states.back().depthWrite = write;
}
void Graphics::setWireframe(bool enable)
{
flushBatchedDraws();
states.back().wireframe = enable;
}
bool Graphics::isPixelFormatSupported(PixelFormat format, uint32 usage)
{
format = getSizedFormat(format);
switch (format)
{
case PIXELFORMAT_PVR1_RGB2_UNORM:
case PIXELFORMAT_PVR1_RGB2_sRGB:
case PIXELFORMAT_PVR1_RGB4_UNORM:
case PIXELFORMAT_PVR1_RGB4_sRGB:
case PIXELFORMAT_PVR1_RGBA2_UNORM:
case PIXELFORMAT_PVR1_RGBA2_sRGB:
case PIXELFORMAT_PVR1_RGBA4_UNORM:
case PIXELFORMAT_PVR1_RGBA4_sRGB:
// Lets not support these in Vulkan - they're deprecated.
return false;
default:
break;
}
auto vulkanFormat = Vulkan::getTextureFormat(format);
VkFormatProperties formatProperties;
vkGetPhysicalDeviceFormatProperties(physicalDevice, vulkanFormat.internalFormat, &formatProperties);
VkFormatFeatureFlags featureFlags = formatProperties.optimalTilingFeatures;
VkImageUsageFlags usageFlags = 0;
if (!featureFlags)
return false;
if (usage & PIXELFORMATUSAGEFLAGS_SAMPLE)
{
usageFlags |= VK_IMAGE_USAGE_SAMPLED_BIT;
if (!(featureFlags & VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT))
return false;
}
if (usage & PIXELFORMATUSAGEFLAGS_LINEAR)
{
if (!(featureFlags & VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT))
return false;
}
if (usage & PIXELFORMATUSAGEFLAGS_RENDERTARGET)
{
if (isPixelFormatDepth(format) || isPixelFormatDepthStencil(format))
{
usageFlags |= VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;
if (!(featureFlags & VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT))
return false;
}
else
{
usageFlags |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
if (!(featureFlags & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT))
return false;
}
}
if (usage & PIXELFORMATUSAGEFLAGS_BLEND)
{
if (!(featureFlags & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BLEND_BIT))
return false;
}
if (usage & PIXELFORMATUSAGEFLAGS_COMPUTEWRITE)
{
usageFlags |= VK_IMAGE_USAGE_STORAGE_BIT;
if (!(featureFlags & VK_FORMAT_FEATURE_STORAGE_IMAGE_BIT))
return false;
}
if (usage & PIXELFORMATUSAGEFLAGS_MSAA)
{
VkImageFormatProperties properties;
if (vkGetPhysicalDeviceImageFormatProperties(physicalDevice, vulkanFormat.internalFormat, VK_IMAGE_TYPE_2D, VK_IMAGE_TILING_OPTIMAL, usageFlags, 0, &properties) != VK_SUCCESS)
return false;
if (static_cast<uint32_t>(properties.sampleCounts) == 1)
return false;
}
return true;
}
Renderer Graphics::getRenderer() const
{
return RENDERER_VULKAN;
}
graphics::GraphicsReadback *Graphics::newReadbackInternal(ReadbackMethod method, love::graphics::Buffer *buffer, size_t offset, size_t size, data::ByteData *dest, size_t destoffset)
{
return new GraphicsReadback(this, method, buffer, offset, size, dest, destoffset);
}
graphics::GraphicsReadback *Graphics::newReadbackInternal(ReadbackMethod method, love::graphics::Texture *texture, int slice, int mipmap, const Rect &rect, image::ImageData *dest, int destx, int desty)
{
return new GraphicsReadback(this, method, texture, slice, mipmap, rect, dest, destx, desty);
}
graphics::ShaderStage *Graphics::newShaderStageInternal(ShaderStageType stage, const std::string &cachekey, const std::string &source, bool gles)
{
return new ShaderStage(this, stage, source, gles, cachekey);
}
graphics::Shader *Graphics::newShaderInternal(StrongRef<love::graphics::ShaderStage> stages[SHADERSTAGE_MAX_ENUM], const Shader::CompileOptions &options)
{
return new Shader(stages, options);
}
graphics::StreamBuffer *Graphics::newStreamBuffer(BufferUsage type, size_t size)
{
return new StreamBuffer(this, type, size);
}
static bool computeDispatchBarrierFlags(Shader *shader, VkAccessFlags &dstAccessFlags, VkPipelineStageFlags &dstStageFlags)
{
for (const auto &info : shader->getActiveTextureInfo())
{
if ((info.access & Shader::ACCESS_WRITE) == 0)
continue;
if (info.texture == nullptr)
return false;
auto tex = (Texture *) info.texture;
// All writable images use the GENERAL layout.
// TODO: this is pretty messy.
bool depthStencil = isPixelFormatDepthStencil(tex->getPixelFormat());
Vulkan::addImageLayoutTransitionOptions(false, tex->isRenderTarget(), depthStencil, VK_IMAGE_LAYOUT_GENERAL, dstAccessFlags, dstStageFlags);
}
for (const auto &info : shader->getActiveStorageBufferInfo())
{
if ((info.access & Shader::ACCESS_WRITE) == 0)
continue;
if (info.buffer == nullptr)
return false;
auto b = (Buffer *) info.buffer;
dstAccessFlags |= b->getBarrierDstAccessFlags();
dstStageFlags |= b->getBarrierDstStageFlags();
}
return true;
}
bool Graphics::dispatch(love::graphics::Shader *shader, int x, int y, int z)
{
auto computeShader = (Shader *) shader;
VkMemoryBarrier barrier{};
barrier.sType = VK_STRUCTURE_TYPE_MEMORY_BARRIER;
barrier.srcAccessMask = VK_ACCESS_SHADER_WRITE_BIT;
VkPipelineStageFlags dstStageMask = 0;
if (!computeDispatchBarrierFlags(computeShader, barrier.dstAccessMask, dstStageMask))
return false;
usedShadersInFrame.insert(computeShader);
if (renderPassState.active)
endRenderPass();
vkCmdBindPipeline(commandBuffers.at(currentFrame), VK_PIPELINE_BIND_POINT_COMPUTE, computeShader->getComputePipeline());
computeShader->cmdPushDescriptorSets(commandBuffers.at(currentFrame), VK_PIPELINE_BIND_POINT_COMPUTE);
vkCmdDispatch(commandBuffers.at(currentFrame), (uint32) x, (uint32) y, (uint32) z);
// Image layout transitions aren't needed, every writable image will be in the GENERAL layout.
if (barrier.dstAccessMask != 0 || dstStageMask != 0)
vkCmdPipelineBarrier(commandBuffers.at(currentFrame), VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, dstStageMask, 0, 1, &barrier, 0, nullptr, 0, nullptr);
return true;
}
bool Graphics::dispatch(love::graphics::Shader *shader, love::graphics::Buffer *indirectargs, size_t argsoffset)
{
auto computeShader = (Shader *) shader;
VkMemoryBarrier barrier{};
barrier.sType = VK_STRUCTURE_TYPE_MEMORY_BARRIER;
barrier.srcAccessMask = VK_ACCESS_SHADER_WRITE_BIT;
VkPipelineStageFlags dstStageMask = 0;
if (!computeDispatchBarrierFlags(computeShader, barrier.dstAccessMask, dstStageMask))
return false;
usedShadersInFrame.insert(computeShader);
if (renderPassState.active)
endRenderPass();
vkCmdBindPipeline(commandBuffers.at(currentFrame), VK_PIPELINE_BIND_POINT_COMPUTE, computeShader->getComputePipeline());
computeShader->cmdPushDescriptorSets(commandBuffers.at(currentFrame), VK_PIPELINE_BIND_POINT_COMPUTE);
vkCmdDispatchIndirect(commandBuffers.at(currentFrame), (VkBuffer) indirectargs->getHandle(), argsoffset);
// Image layout transitions aren't needed, every writable image will be in the GENERAL layout.
if (barrier.dstAccessMask != 0 || dstStageMask != 0)
vkCmdPipelineBarrier(commandBuffers.at(currentFrame), VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, dstStageMask, 0, 1, &barrier, 0, nullptr, 0, nullptr);
return true;
}
void Graphics::setRenderTargetsInternal(const RenderTargets &rts, int pixelw, int pixelh, bool hasSRGBtexture)
{
if (renderPassState.active)
endRenderPass();
bool isWindow = rts.getFirstTarget().texture == nullptr;
if (isWindow)
setDefaultRenderPass();
else
setRenderPass(rts, pixelw, pixelh);
}
// END IMPLEMENTATION OVERRIDDEN FUNCTIONS
void Graphics::initDynamicState()
{
vkCmdSetStencilWriteMask(commandBuffers.at(currentFrame), VK_STENCIL_FRONT_AND_BACK, states.back().stencil.writeMask);
vkCmdSetStencilCompareMask(commandBuffers.at(currentFrame), VK_STENCIL_FRONT_AND_BACK, states.back().stencil.readMask);
vkCmdSetStencilReference(commandBuffers.at(currentFrame), VK_STENCIL_FRONT_AND_BACK, states.back().stencil.value);
if (optionalDeviceExtensions.extendedDynamicState)
{
vkCmdSetStencilOpEXT(
commandBuffers.at(currentFrame),
VK_STENCIL_FRONT_AND_BACK,
VK_STENCIL_OP_KEEP, Vulkan::getStencilOp(states.back().stencil.action),
VK_STENCIL_OP_KEEP, Vulkan::getCompareOp(getReversedCompareMode(states.back().stencil.compare)));
vkCmdSetDepthCompareOpEXT(
commandBuffers.at(currentFrame), Vulkan::getCompareOp(states.back().depthTest));
vkCmdSetDepthWriteEnableEXT(
commandBuffers.at(currentFrame), Vulkan::getBool(states.back().depthWrite));
vkCmdSetFrontFaceEXT(
commandBuffers.at(currentFrame), Vulkan::getFrontFace(states.back().winding));
}
}
void Graphics::beginSwapChainFrame()
{
if (swapChain != VK_NULL_HANDLE)
{
while (true)
{
VkResult result = vkAcquireNextImageKHR(device, swapChain, UINT64_MAX, imageAvailableSemaphores[currentFrame], VK_NULL_HANDLE, &imageIndex);
if (result == VK_ERROR_OUT_OF_DATE_KHR)
{
recreateSwapChain();
continue;
}
else if (result != VK_SUCCESS && result != VK_SUBOPTIMAL_KHR)
throw love::Exception("failed to acquire swap chain image");
break;
}
imageRequested = true;
}
else
{
imageRequested = false;
}
startRecordingGraphicsCommands();
if (!swapChainImages.empty())
{
Vulkan::cmdTransitionImageLayout(
commandBuffers.at(currentFrame),
swapChainImages[imageIndex],
swapChainPixelFormat, true,
VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
}
if (transitionColorDepthLayouts)
{
if (depthImage)
Vulkan::cmdTransitionImageLayout(
commandBuffers.at(currentFrame),
depthImage,
depthStencilPixelFormat, true,
VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL);
if (colorImage)
Vulkan::cmdTransitionImageLayout(
commandBuffers.at(currentFrame),
colorImage,
swapChainPixelFormat, true,
VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
transitionColorDepthLayouts = false;
}
}
void Graphics::beginFrame()
{
vkWaitForFences(device, 1, &inFlightFences[currentFrame], VK_TRUE, UINT64_MAX);
for (auto &readbackCallback : readbackCallbacks.at(currentFrame))
readbackCallback();
readbackCallbacks.at(currentFrame).clear();
for (auto &cleanUpFn : cleanUpFunctions.at(currentFrame))
cleanUpFn();
cleanUpFunctions.at(currentFrame).clear();
beginSwapChainFrame();
Vulkan::resetShaderSwitches();
for (const auto &shader : usedShadersInFrame)
shader->newFrame(realFrameIndex);
usedShadersInFrame.clear();
localUniformBuffer->nextFrame();
}
void Graphics::startRecordingGraphicsCommands()
{
VkCommandBufferBeginInfo beginInfo{};
beginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
beginInfo.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
beginInfo.pInheritanceInfo = nullptr;
VkResult result = vkBeginCommandBuffer(commandBuffers.at(currentFrame), &beginInfo);
if (result != VK_SUCCESS)
throw love::Exception("Failed to begin recording Vulkan command buffer: %s", Vulkan::getErrorString(result));
initDynamicState();
// This must be done after vkBeginCommandBuffer (since newTexture needs an
// active command buffer for layout transitions), and before setDefaultRenderPass
// (since that tries to use fakeBackbuffer).
if (swapChainImages.empty() && fakeBackbuffer == nullptr)
{
Texture::Settings settings;
settings.format = swapChainPixelFormat;
settings.width = swapChainExtent.width;
settings.height = swapChainExtent.height;
settings.renderTarget = true;
settings.readable.set(false);
fakeBackbuffer.set((Texture*)newTexture(settings, nullptr), Acquire::NORETAIN);
}
setDefaultRenderPass();
if (defaultVertexBuffer)
{
VkBuffer buffer = (VkBuffer)defaultVertexBuffer->getHandle();
VkDeviceSize offset = 0;
vkCmdBindVertexBuffers(commandBuffers.at(currentFrame), DEFAULT_VERTEX_BUFFER_BINDING, 1, &buffer, &offset);
}
}
void Graphics::endRecordingGraphicsCommands()
{
if (renderPassState.active)
endRenderPass();
VkResult result = vkEndCommandBuffer(commandBuffers.at(currentFrame));
if (result != VK_SUCCESS)
throw love::Exception("Failed to record Vulkan command buffer: %s", Vulkan::getErrorString(result));
}
VkCommandBuffer Graphics::getCommandBufferForDataTransfer()
{
if (renderPassState.active)
endRenderPass();
return commandBuffers.at(currentFrame);
}
void Graphics::queueCleanUp(std::function<void()> cleanUp)
{
cleanUpFunctions.at(currentFrame).push_back(cleanUp);
}
void Graphics::addReadbackCallback(std::function<void()> callback)
{
readbackCallbacks.at(currentFrame).push_back(callback);
}
graphics::Shader::BuiltinUniformData Graphics::getCurrentBuiltinUniformData()
{
love::graphics::Shader::BuiltinUniformData data;
data.transformMatrix = getTransform();
data.projectionMatrix = getDeviceProjection();
data.scaleParams.x = (float) getCurrentDPIScale();
data.scaleParams.y = getPointSize();
// Flip y to convert input y-up [-1, 1] to vulkan's y-down [-1, 1].
// Convert input z [-1, 1] to vulkan [0, 1].
uint32 flags = Shader::CLIP_TRANSFORM_FLIP_Y | Shader::CLIP_TRANSFORM_Z_NEG1_1_TO_0_1;
data.clipSpaceParams = Shader::computeClipSpaceParams(flags);
const auto &rt = states.back().renderTargets.getFirstTarget();
if (rt.texture != nullptr)
{
data.screenSizeParams.x = rt.texture->getPixelWidth(rt.mipmap);
data.screenSizeParams.y = rt.texture->getPixelHeight(rt.mipmap);
}
else
{
data.screenSizeParams.x = getPixelWidth();
data.screenSizeParams.y = getPixelHeight();
}
data.screenSizeParams.z = 1.0f;
data.screenSizeParams.w = 0.0f;
data.constantColor = getColor();
gammaCorrectColor(data.constantColor);
return data;
}
const OptionalDeviceExtensions &Graphics::getEnabledOptionalDeviceExtensions() const
{
return optionalDeviceExtensions;
}
const OptionalInstanceExtensions &Graphics::getEnabledOptionalInstanceExtensions() const
{
return optionalInstanceExtensions;
}
bool Graphics::checkValidationSupport()
{
uint32_t layerCount;
vkEnumerateInstanceLayerProperties(&layerCount, nullptr);
std::vector<VkLayerProperties> availableLayers(layerCount);
vkEnumerateInstanceLayerProperties(&layerCount, availableLayers.data());
for (const char *layerName : validationLayers)
{
bool layerFound = false;
for (const auto &layerProperties : availableLayers)
{
if (strcmp(layerName, layerProperties.layerName) == 0)
{
layerFound = true;
break;
}
}
if (!layerFound)
return false;
}
return true;
}
void Graphics::pickPhysicalDevice()
{
struct DeviceRating
{
VkPhysicalDevice device;
size_t deviceIndex;
int rating;
};
uint32_t deviceCount = 0;
vkEnumeratePhysicalDevices(instance, &deviceCount, nullptr);
if (deviceCount == 0)
throw love::Exception("failed to find GPUs with Vulkan support");
std::vector<VkPhysicalDevice> devices(deviceCount);
vkEnumeratePhysicalDevices(instance, &deviceCount, devices.data());
std::vector<DeviceRating> candidates;
for (size_t i = 0; i < devices.size(); i++)
{
DeviceRating r = {};
r.device = devices[i];
r.deviceIndex = i;
r.rating = rateDeviceSuitability(devices[i], true);
candidates.push_back(r);
}
std::sort(candidates.begin(), candidates.end(), [](const DeviceRating &a, const DeviceRating &b) -> bool
{
if (a.rating != b.rating)
return a.rating > b.rating;
return a.deviceIndex < b.deviceIndex;
});
if (!candidates.empty() && candidates[0].rating > 0)
physicalDevice = candidates[0].device;
else
throw love::Exception("Vulkan: failed to find a suitable GPU.");
VkPhysicalDeviceProperties properties;
vkGetPhysicalDeviceProperties(physicalDevice, &properties);
minUniformBufferOffsetAlignment = properties.limits.minUniformBufferOffsetAlignment;
deviceApiVersion = properties.apiVersion;
depthStencilFormat = findDepthFormat();
switch (depthStencilFormat)
{
case VK_FORMAT_D32_SFLOAT_S8_UINT:
depthStencilPixelFormat = PIXELFORMAT_DEPTH32_FLOAT_STENCIL8;
break;
case VK_FORMAT_D24_UNORM_S8_UINT:
depthStencilPixelFormat = PIXELFORMAT_DEPTH24_UNORM_STENCIL8;
break;
default:
throw love::Exception("Failed to convert vulkan depth/stencil swapchain pixel format %d to love PixelFormat.", depthStencilFormat);
break;
}
}
// if the score is nonzero then the device is suitable.
// A higher rating means generally better performance
// if the score is 0 the device is unsuitable
int Graphics::rateDeviceSuitability(VkPhysicalDevice device, bool querySwapChain)
{
VkPhysicalDeviceProperties deviceProperties;
VkPhysicalDeviceFeatures deviceFeatures;
vkGetPhysicalDeviceProperties(device, &deviceProperties);
vkGetPhysicalDeviceFeatures(device, &deviceFeatures);
uint32_t extensionCount = 0;
vkEnumerateDeviceExtensionProperties(device, nullptr, &extensionCount, nullptr);
std::vector<VkExtensionProperties> availableExtensions(extensionCount);
vkEnumerateDeviceExtensionProperties(device, nullptr, &extensionCount, availableExtensions.data());
bool hasMSFTLayeredDriver = false;
for (const auto &extension : availableExtensions)
{
if (strcmp(extension.extensionName, VK_MSFT_LAYERED_DRIVER_EXTENSION_NAME) == 0)
{
hasMSFTLayeredDriver = true;
break;
}
}
VkPhysicalDeviceProperties2 deviceProperties2{};
deviceProperties2.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2;
VkPhysicalDeviceLayeredDriverPropertiesMSFT layeredDriverProperties{};
layeredDriverProperties.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_LAYERED_DRIVER_PROPERTIES_MSFT;
if (deviceProperties.apiVersion >= VK_API_VERSION_1_1)
{
if (hasMSFTLayeredDriver)
deviceProperties2.pNext = &layeredDriverProperties;
vkGetPhysicalDeviceProperties2(device, &deviceProperties2);
}
int score = 2;
// optional
if (deviceProperties.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU)
score += isLowPowerPreferred() ? 100 : 1000;
if (deviceProperties.deviceType == VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU)
score += isLowPowerPreferred() ? 1000 : 100;
if (deviceProperties.deviceType == VK_PHYSICAL_DEVICE_TYPE_VIRTUAL_GPU)
score += 10;
// Reduce the score if this is something like Vulkan-on-D3D12 rather than a native driver.
if (hasMSFTLayeredDriver && layeredDriverProperties.underlyingAPI != VK_LAYERED_DRIVER_UNDERLYING_API_NONE_MSFT)
score /= 2;
// definitely needed
if (deviceProperties.deviceType == VK_PHYSICAL_DEVICE_TYPE_CPU)
{
if (!SDL_GetHintBoolean("LOVE_GRAPHICS_VULKAN_ALLOW_SOFTWARE", false))
score = 0;
}
QueueFamilyIndices indices = findQueueFamilies(device);
if (!indices.isComplete() && (querySwapChain || !indices.graphicsFamily.hasValue))
score = 0;
std::set<std::string> missingExtensions(deviceExtensions.begin(), deviceExtensions.end());
for (const auto &extension : availableExtensions)
missingExtensions.erase(extension.extensionName);
if (!missingExtensions.empty())
score = 0;
if (missingExtensions.empty() && querySwapChain)
{
auto swapChainSupport = querySwapChainSupport(device);
bool swapChainAdequate = !swapChainSupport.formats.empty() && !swapChainSupport.presentModes.empty();
if (!swapChainAdequate)
score = 0;
}
if (!deviceFeatures.samplerAnisotropy)
score = 0;
if (!deviceFeatures.fillModeNonSolid)
score = 0;
return score;
}
QueueFamilyIndices Graphics::findQueueFamilies(VkPhysicalDevice device)
{
QueueFamilyIndices indices;
uint32_t queueFamilyCount = 0;
vkGetPhysicalDeviceQueueFamilyProperties(device, &queueFamilyCount, nullptr);
std::vector<VkQueueFamilyProperties> queueFamilies(queueFamilyCount);
vkGetPhysicalDeviceQueueFamilyProperties(device, &queueFamilyCount, queueFamilies.data());
int i = 0;
for (const auto &queueFamily : queueFamilies)
{
if ((queueFamily.queueFlags & VK_QUEUE_GRAPHICS_BIT) && (queueFamily.queueFlags & VK_QUEUE_COMPUTE_BIT))
indices.graphicsFamily = i;
if (surface != VK_NULL_HANDLE)
{
VkBool32 presentSupport = false;
vkGetPhysicalDeviceSurfaceSupportKHR(device, i, surface, &presentSupport);
if (presentSupport)
indices.presentFamily = i;
}
if (indices.isComplete())
break;
i++;
}
return indices;
}
static void findOptionalDeviceExtensions(VkPhysicalDevice physicalDevice, OptionalDeviceExtensions &optionalDeviceExtensions)
{
uint32_t extensionCount;
vkEnumerateDeviceExtensionProperties(physicalDevice, nullptr, &extensionCount, nullptr);
std::vector<VkExtensionProperties> availableExtensions(extensionCount);
vkEnumerateDeviceExtensionProperties(physicalDevice, nullptr, &extensionCount, availableExtensions.data());
for (const auto &extension : availableExtensions)
{
if (strcmp(extension.extensionName, VK_EXT_EXTENDED_DYNAMIC_STATE_EXTENSION_NAME) == 0)
optionalDeviceExtensions.extendedDynamicState = true;
if (strcmp(extension.extensionName, VK_KHR_GET_MEMORY_REQUIREMENTS_2_EXTENSION_NAME) == 0)
optionalDeviceExtensions.memoryRequirements2 = true;
if (strcmp(extension.extensionName, VK_KHR_DEDICATED_ALLOCATION_EXTENSION_NAME) == 0)
optionalDeviceExtensions.dedicatedAllocation = true;
if (strcmp(extension.extensionName, VK_EXT_MEMORY_BUDGET_EXTENSION_NAME) == 0)
optionalDeviceExtensions.memoryBudget = true;
if (strcmp(extension.extensionName, VK_KHR_SHADER_FLOAT_CONTROLS_EXTENSION_NAME) == 0)
optionalDeviceExtensions.shaderFloatControls = true;
if (strcmp(extension.extensionName, VK_KHR_SPIRV_1_4_EXTENSION_NAME) == 0)
optionalDeviceExtensions.spirv14 = true;
}
}
void Graphics::createLogicalDevice()
{
QueueFamilyIndices indices = findQueueFamilies(physicalDevice);
std::vector<VkDeviceQueueCreateInfo> queueCreateInfos;
std::set<uint32_t> uniqueQueueFamilies = {
indices.graphicsFamily.value,
indices.presentFamily.value
};
float queuePriority = 1.0f;
for (uint32_t queueFamily : uniqueQueueFamilies)
{
VkDeviceQueueCreateInfo queueCreateInfo{};
queueCreateInfo.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
queueCreateInfo.queueFamilyIndex = queueFamily;
queueCreateInfo.queueCount = 1;
queueCreateInfo.pQueuePriorities = &queuePriority;
queueCreateInfos.push_back(queueCreateInfo);
}
findOptionalDeviceExtensions(physicalDevice, optionalDeviceExtensions);
// sanity check for dependencies.
if (optionalDeviceExtensions.extendedDynamicState && !optionalInstanceExtensions.physicalDeviceProperties2)
optionalDeviceExtensions.extendedDynamicState = false;
if (optionalDeviceExtensions.dedicatedAllocation && !optionalDeviceExtensions.memoryRequirements2)
optionalDeviceExtensions.dedicatedAllocation = false;
if (optionalDeviceExtensions.memoryBudget && !optionalInstanceExtensions.physicalDeviceProperties2)
optionalDeviceExtensions.memoryBudget = false;
if (optionalDeviceExtensions.spirv14 && !optionalDeviceExtensions.shaderFloatControls)
optionalDeviceExtensions.spirv14 = false;
if (optionalDeviceExtensions.spirv14 && deviceApiVersion < VK_API_VERSION_1_1)
optionalDeviceExtensions.spirv14 = false;
VkPhysicalDeviceFeatures deviceFeatures{};
deviceFeatures.samplerAnisotropy = VK_TRUE;
deviceFeatures.fillModeNonSolid = VK_TRUE;
VkDeviceCreateInfo createInfo{};
createInfo.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
createInfo.queueCreateInfoCount = static_cast<uint32_t>(queueCreateInfos.size());
createInfo.pQueueCreateInfos = queueCreateInfos.data();
createInfo.pEnabledFeatures = &deviceFeatures;
std::vector<const char*> enabledExtensions(deviceExtensions.begin(), deviceExtensions.end());
if (optionalDeviceExtensions.extendedDynamicState)
enabledExtensions.push_back(VK_EXT_EXTENDED_DYNAMIC_STATE_EXTENSION_NAME);
if (optionalDeviceExtensions.memoryRequirements2)
enabledExtensions.push_back(VK_KHR_GET_MEMORY_REQUIREMENTS_2_EXTENSION_NAME);
if (optionalDeviceExtensions.dedicatedAllocation)
enabledExtensions.push_back(VK_KHR_DEDICATED_ALLOCATION_EXTENSION_NAME);
if (optionalDeviceExtensions.memoryBudget)
enabledExtensions.push_back(VK_EXT_MEMORY_BUDGET_EXTENSION_NAME);
if (optionalDeviceExtensions.shaderFloatControls)
enabledExtensions.push_back(VK_KHR_SHADER_FLOAT_CONTROLS_EXTENSION_NAME);
if (optionalDeviceExtensions.spirv14)
enabledExtensions.push_back(VK_KHR_SPIRV_1_4_EXTENSION_NAME);
if (deviceApiVersion >= VK_API_VERSION_1_1)
enabledExtensions.push_back(VK_KHR_BIND_MEMORY_2_EXTENSION_NAME);
createInfo.enabledExtensionCount = static_cast<uint32_t>(enabledExtensions.size());
createInfo.ppEnabledExtensionNames = enabledExtensions.data();
if (isDebugEnabled())
{
createInfo.enabledLayerCount = static_cast<uint32_t>(validationLayers.size());
createInfo.ppEnabledLayerNames = validationLayers.data();
}
VkPhysicalDeviceExtendedDynamicStateFeaturesEXT extendedDynamicStateFeatures{};
extendedDynamicStateFeatures.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTENDED_DYNAMIC_STATE_FEATURES_EXT;
extendedDynamicStateFeatures.extendedDynamicState = VK_TRUE;
extendedDynamicStateFeatures.pNext = nullptr;
if (optionalDeviceExtensions.extendedDynamicState)
createInfo.pNext = &extendedDynamicStateFeatures;
VkResult result = vkCreateDevice(physicalDevice, &createInfo, nullptr, &device);
if (result != VK_SUCCESS)
throw love::Exception("Failed to create Vulkan logical device: %s", Vulkan::getErrorString(result));
volkLoadDevice(device);
vkGetDeviceQueue(device, indices.graphicsFamily.value, 0, &graphicsQueue);
vkGetDeviceQueue(device, indices.presentFamily.value, 0, &presentQueue);
}
void Graphics::createPipelineCache()
{
VkPipelineCacheCreateInfo cacheInfo{};
cacheInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_CACHE_CREATE_INFO;
VkResult result = vkCreatePipelineCache(device, &cacheInfo, nullptr, &pipelineCache);
if (result != VK_SUCCESS)
throw love::Exception("Could not create Vulkan pipeline cache: %s", Vulkan::getErrorString(result));
}
void Graphics::initVMA()
{
VmaAllocatorCreateInfo allocatorCreateInfo = {};
allocatorCreateInfo.vulkanApiVersion = deviceApiVersion;
allocatorCreateInfo.physicalDevice = physicalDevice;
allocatorCreateInfo.device = device;
allocatorCreateInfo.instance = instance;
// Default of 256 MB is a little too wasteful for most love games.
// TODO: Tune this more.
allocatorCreateInfo.preferredLargeHeapBlockSize = 128 * 1024 * 1024;
VmaVulkanFunctions vulkanFunctions{};
vulkanFunctions.vkGetInstanceProcAddr = vkGetInstanceProcAddr;
vulkanFunctions.vkGetDeviceProcAddr = vkGetDeviceProcAddr;
vulkanFunctions.vkGetPhysicalDeviceProperties = vkGetPhysicalDeviceProperties;
vulkanFunctions.vkGetPhysicalDeviceMemoryProperties = vkGetPhysicalDeviceMemoryProperties;
vulkanFunctions.vkAllocateMemory = vkAllocateMemory;
vulkanFunctions.vkFreeMemory = vkFreeMemory;
vulkanFunctions.vkMapMemory = vkMapMemory;
vulkanFunctions.vkUnmapMemory = vkUnmapMemory;
vulkanFunctions.vkFlushMappedMemoryRanges = vkFlushMappedMemoryRanges;
vulkanFunctions.vkInvalidateMappedMemoryRanges = vkInvalidateMappedMemoryRanges;
vulkanFunctions.vkBindBufferMemory = vkBindBufferMemory;
vulkanFunctions.vkBindImageMemory = vkBindImageMemory;
vulkanFunctions.vkGetBufferMemoryRequirements = vkGetBufferMemoryRequirements;
vulkanFunctions.vkGetImageMemoryRequirements = vkGetImageMemoryRequirements;
vulkanFunctions.vkCreateBuffer = vkCreateBuffer;
vulkanFunctions.vkCreateImage = vkCreateImage;
vulkanFunctions.vkDestroyBuffer = vkDestroyBuffer;
vulkanFunctions.vkDestroyImage = vkDestroyImage;
vulkanFunctions.vkCmdCopyBuffer = vkCmdCopyBuffer;
vulkanFunctions.vkGetBufferMemoryRequirements2KHR = vkGetBufferMemoryRequirements2KHR;
vulkanFunctions.vkGetImageMemoryRequirements2KHR = vkGetImageMemoryRequirements2KHR;
vulkanFunctions.vkBindBufferMemory2KHR = vkBindBufferMemory2KHR;
vulkanFunctions.vkBindImageMemory2KHR = vkBindImageMemory2KHR;
vulkanFunctions.vkGetPhysicalDeviceMemoryProperties2KHR = vkGetPhysicalDeviceMemoryProperties2KHR;
vulkanFunctions.vkGetDeviceBufferMemoryRequirements = vkGetDeviceBufferMemoryRequirements;
vulkanFunctions.vkGetDeviceImageMemoryRequirements = vkGetDeviceImageMemoryRequirements;
allocatorCreateInfo.pVulkanFunctions = &vulkanFunctions;
allocatorCreateInfo.flags |= VMA_ALLOCATOR_CREATE_EXTERNALLY_SYNCHRONIZED_BIT;
if (optionalDeviceExtensions.dedicatedAllocation)
allocatorCreateInfo.flags |= VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT;
if (optionalDeviceExtensions.memoryBudget)
allocatorCreateInfo.flags |= VMA_ALLOCATOR_CREATE_EXT_MEMORY_BUDGET_BIT;
VkResult result = vmaCreateAllocator(&allocatorCreateInfo, &vmaAllocator);
if (result != VK_SUCCESS)
throw love::Exception("Failed to create Vulkan VMA allocator: %s", Vulkan::getErrorString(result));
}
void Graphics::createSurface()
{
auto window = Module::getInstance<love::window::Window>(M_WINDOW);
const void *handle = window->getHandle();
if (!SDL_Vulkan_CreateSurface((SDL_Window*)handle, instance, nullptr, &surface))
throw love::Exception("Failed to create Vulkan window surface: %s", SDL_GetError());
}
SwapChainSupportDetails Graphics::querySwapChainSupport(VkPhysicalDevice device)
{
SwapChainSupportDetails details;
vkGetPhysicalDeviceSurfaceCapabilitiesKHR(device, surface, &details.capabilities);
uint32_t formatCount;
vkGetPhysicalDeviceSurfaceFormatsKHR(device, surface, &formatCount, nullptr);
if (formatCount != 0)
{
details.formats.resize(formatCount);
vkGetPhysicalDeviceSurfaceFormatsKHR(device, surface, &formatCount, details.formats.data());
}
uint32_t presentModeCount;
vkGetPhysicalDeviceSurfacePresentModesKHR(device, surface, &presentModeCount, nullptr);
if (presentModeCount != 0)
{
details.presentModes.resize(presentModeCount);
vkGetPhysicalDeviceSurfacePresentModesKHR(device, surface, &presentModeCount, details.presentModes.data());
}
return details;
}
void Graphics::createSwapChain()
{
SwapChainSupportDetails swapChainSupport = querySwapChainSupport(physicalDevice);
VkSurfaceFormatKHR surfaceFormat = chooseSwapSurfaceFormat(swapChainSupport.formats);
VkPresentModeKHR presentMode = chooseSwapPresentMode(swapChainSupport.presentModes);
VkExtent2D extent = chooseSwapExtent(swapChainSupport.capabilities);
if (extent.width > 0 && extent.height > 0)
{
uint32_t imageCount = swapChainSupport.capabilities.minImageCount + 1;
if (swapChainSupport.capabilities.maxImageCount > 0 && imageCount > swapChainSupport.capabilities.maxImageCount)
imageCount = swapChainSupport.capabilities.maxImageCount;
VkSwapchainCreateInfoKHR createInfo{};
createInfo.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
createInfo.surface = surface;
createInfo.minImageCount = imageCount;
createInfo.imageFormat = surfaceFormat.format;
createInfo.imageColorSpace = surfaceFormat.colorSpace;
createInfo.imageExtent = extent;
createInfo.imageArrayLayers = 1;
createInfo.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
QueueFamilyIndices indices = findQueueFamilies(physicalDevice);
uint32_t queueFamilyIndices[] = { indices.graphicsFamily.value, indices.presentFamily.value };
if (indices.graphicsFamily.value != indices.presentFamily.value)
{
createInfo.imageSharingMode = VK_SHARING_MODE_CONCURRENT;
createInfo.queueFamilyIndexCount = 2;
createInfo.pQueueFamilyIndices = queueFamilyIndices;
}
else
{
createInfo.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE;
createInfo.queueFamilyIndexCount = 0;
createInfo.pQueueFamilyIndices = nullptr;
}
createInfo.preTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
createInfo.compositeAlpha = chooseCompositeAlpha(swapChainSupport.capabilities);
createInfo.presentMode = presentMode;
createInfo.clipped = VK_TRUE;
createInfo.oldSwapchain = VK_NULL_HANDLE;
VkResult result = vkCreateSwapchainKHR(device, &createInfo, nullptr, &swapChain);
if (result != VK_SUCCESS)
throw love::Exception("Failed to create Vulkan swap chain: %s", Vulkan::getErrorString(result));
vkGetSwapchainImagesKHR(device, swapChain, &imageCount, nullptr);
swapChainImages.resize(imageCount);
vkGetSwapchainImagesKHR(device, swapChain, &imageCount, swapChainImages.data());
}
else
{
// Use a fake backbuffer. Creation is deferred until startRecordingGraphicsCommands
// because newTexture needs an active command buffer to do its initial
// layout transitions.
swapChainImages.clear();
extent.width = std::max(1, pixelWidth);
extent.height = std::max(1, pixelHeight);
if (isGammaCorrect())
surfaceFormat.format = VK_FORMAT_R8G8B8A8_SRGB;
else
surfaceFormat.format = VK_FORMAT_R8G8B8A8_UNORM;
}
swapChainImageFormat = surfaceFormat.format;
swapChainExtent = extent;
switch (swapChainImageFormat)
{
case VK_FORMAT_B8G8R8A8_SRGB:
swapChainPixelFormat = PIXELFORMAT_BGRA8_sRGB;
break;
case VK_FORMAT_B8G8R8A8_UNORM:
swapChainPixelFormat = PIXELFORMAT_BGRA8_UNORM;
break;
case VK_FORMAT_R8G8B8A8_SRGB:
swapChainPixelFormat = PIXELFORMAT_RGBA8_sRGB;
break;
case VK_FORMAT_R8G8B8A8_UNORM:
swapChainPixelFormat = PIXELFORMAT_RGBA8_UNORM;
break;
default:
throw love::Exception("Failed to convert vulkan depth/stencil swapchain image format %d to love PixelFormat.", swapChainImageFormat);
break;
}
}
VkSurfaceFormatKHR Graphics::chooseSwapSurfaceFormat(const std::vector<VkSurfaceFormatKHR> &availableFormats)
{
std::vector<VkFormat> formatOrder;
// TODO: turn off GammaCorrect if a sRGB format can't be found?
// TODO: does every platform have these formats?
if (isGammaCorrect())
{
formatOrder = {
VK_FORMAT_B8G8R8A8_SRGB,
VK_FORMAT_R8G8B8A8_SRGB,
};
}
else
{
formatOrder = {
VK_FORMAT_B8G8R8A8_UNORM,
VK_FORMAT_R8G8B8A8_SNORM,
};
}
for (const auto format : formatOrder)
{
for (const auto &availableFormat : availableFormats)
{
if (availableFormat.format == format && availableFormat.colorSpace == VK_COLORSPACE_SRGB_NONLINEAR_KHR)
return availableFormat;
}
}
return availableFormats[0];
}
VkPresentModeKHR Graphics::chooseSwapPresentMode(const std::vector<VkPresentModeKHR> &availablePresentModes)
{
const auto begin = availablePresentModes.begin();
const auto end = availablePresentModes.end();
switch (vsync)
{
case -1:
if (std::find(begin, end, VK_PRESENT_MODE_FIFO_RELAXED_KHR) != end)
return VK_PRESENT_MODE_FIFO_RELAXED_KHR;
else
return VK_PRESENT_MODE_FIFO_KHR;
case 0:
// Mailbox mode might be better than immediate mode for a lot of people.
// But on at least some systems it acts as if vsync is enabled
// https://github.com/love2d/love/issues/1852
// TODO: is that a bug in love's code or the graphics driver / compositor?
// Should love expose mailbox mode in an API to users in some manner,
// instead of trying to guess what to do?
if (std::find(begin, end, VK_PRESENT_MODE_IMMEDIATE_KHR) != end)
return VK_PRESENT_MODE_IMMEDIATE_KHR;
else if (std::find(begin, end, VK_PRESENT_MODE_MAILBOX_KHR) != end)
return VK_PRESENT_MODE_MAILBOX_KHR;
else
return VK_PRESENT_MODE_FIFO_KHR;
default:
// TODO: support for swap interval = 2, etc?
return VK_PRESENT_MODE_FIFO_KHR;
}
}
static uint32_t clampuint32_t(uint32_t value, uint32_t min, uint32_t max)
{
if (value < min)
return min;
if (value > max)
return max;
return value;
}
VkExtent2D Graphics::chooseSwapExtent(const VkSurfaceCapabilitiesKHR &capabilities)
{
if (capabilities.currentExtent.width != UINT32_MAX)
return capabilities.currentExtent;
else
{
VkExtent2D actualExtent = {
static_cast<uint32_t>(pixelWidth),
static_cast<uint32_t>(pixelHeight)
};
actualExtent.width = clampuint32_t(actualExtent.width, capabilities.minImageExtent.width, capabilities.maxImageExtent.width);
actualExtent.height = clampuint32_t(actualExtent.height, capabilities.minImageExtent.height, capabilities.maxImageExtent.height);
return actualExtent;
}
}
VkCompositeAlphaFlagBitsKHR Graphics::chooseCompositeAlpha(const VkSurfaceCapabilitiesKHR &capabilities)
{
if (capabilities.supportedCompositeAlpha & VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR)
return VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
else if (capabilities.supportedCompositeAlpha & VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR)
return VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR;
else if (capabilities.supportedCompositeAlpha & VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR)
return VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
else if (capabilities.supportedCompositeAlpha & VK_COMPOSITE_ALPHA_POST_MULTIPLIED_BIT_KHR)
return VK_COMPOSITE_ALPHA_POST_MULTIPLIED_BIT_KHR;
else
throw love::Exception("failed to find composite alpha");
}
void Graphics::createImageViews()
{
swapChainImageViews.resize(swapChainImages.size());
for (size_t i = 0; i < swapChainImages.size(); i++)
{
VkImageViewCreateInfo createInfo{};
createInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
createInfo.image = swapChainImages.at(i);
createInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
createInfo.format = swapChainImageFormat;
createInfo.components.r = VK_COMPONENT_SWIZZLE_IDENTITY;
createInfo.components.g = VK_COMPONENT_SWIZZLE_IDENTITY;
createInfo.components.b = VK_COMPONENT_SWIZZLE_IDENTITY;
createInfo.components.a = VK_COMPONENT_SWIZZLE_IDENTITY;
createInfo.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
createInfo.subresourceRange.baseMipLevel = 0;
createInfo.subresourceRange.levelCount = 1;
createInfo.subresourceRange.baseArrayLayer = 0;
createInfo.subresourceRange.layerCount = 1;
VkResult result = vkCreateImageView(device, &createInfo, nullptr, &swapChainImageViews.at(i));
if (result != VK_SUCCESS)
throw love::Exception("Failed to create Vulkan swap chain image views: %s", Vulkan::getErrorString(result));
}
}
VkFramebuffer Graphics::createFramebuffer(FramebufferConfiguration &configuration)
{
std::vector<VkImageView> attachments;
for (const auto &colorView : configuration.colorViews)
attachments.push_back(colorView);
if (configuration.staticData.depthView)
attachments.push_back(configuration.staticData.depthView);
// Resolve attachments after everything else to match createRenderPass.
for (const auto &colorResolveView : configuration.colorResolveViews)
attachments.push_back(colorResolveView);
VkFramebufferCreateInfo createInfo{};
createInfo.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
createInfo.renderPass = configuration.staticData.renderPass;
createInfo.attachmentCount = static_cast<uint32_t>(attachments.size());
createInfo.pAttachments = attachments.data();
createInfo.width = configuration.staticData.width;
createInfo.height = configuration.staticData.height;
createInfo.layers = 1;
VkFramebuffer frameBuffer;
VkResult result = vkCreateFramebuffer(device, &createInfo, nullptr, &frameBuffer);
if (result != VK_SUCCESS)
throw love::Exception("Failed to create Vulkan framebuffer: %s", Vulkan::getErrorString(result));
return frameBuffer;
}
VkFramebuffer Graphics::getFramebuffer(FramebufferConfiguration &configuration)
{
VkFramebuffer framebuffer;
auto it = framebuffers.find(configuration);
if (it != framebuffers.end())
framebuffer = it->second;
else
{
framebuffer = createFramebuffer(configuration);
framebuffers[configuration] = framebuffer;
}
framebufferUsages[framebuffer] = true;
return framebuffer;
}
void Graphics::cleanupFramebuffers(VkImageView imageView, PixelFormat format)
{
bool depthstencil = isPixelFormatDepthStencil(format);
for (auto it = framebuffers.begin(); it != framebuffers.end();)
{
bool foundView = false;
if (depthstencil)
{
if (it->first.staticData.depthView == imageView)
foundView = true;
}
else
{
for (VkImageView view : it->first.colorViews)
{
if (view == imageView)
{
foundView = true;
break;
}
}
if (!foundView)
{
for (VkImageView view : it->first.colorResolveViews)
{
if (view == imageView)
{
foundView = true;
break;
}
}
}
}
if (foundView)
{
vkDestroyFramebuffer(device, it->second, nullptr);
it = framebuffers.erase(it);
}
else
{
++it;
}
}
}
void Graphics::createDefaultShaders()
{
for (int i = 0; i < Shader::STANDARD_MAX_ENUM; i++)
{
auto stype = (Shader::StandardShader)i;
if (!Shader::standardShaders[i])
{
std::vector<std::string> stages;
stages.push_back(Shader::getDefaultCode(stype, SHADERSTAGE_VERTEX));
stages.push_back(Shader::getDefaultCode(stype, SHADERSTAGE_PIXEL));
Shader::standardShaders[i] = newShader(stages, {});
}
}
}
VkRenderPass Graphics::createRenderPass(RenderPassConfiguration &configuration)
{
VkSubpassDescription subPass{};
subPass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
VkSubpassDependency beginDependency{};
beginDependency.srcSubpass = VK_SUBPASS_EXTERNAL;
beginDependency.dstSubpass = 0;
beginDependency.srcStageMask = VK_PIPELINE_STAGE_TRANSFER_BIT;
beginDependency.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
beginDependency.dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT
| VK_PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT | VK_PIPELINE_STAGE_LATE_FRAGMENT_TESTS_BIT;
beginDependency.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT
| VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_READ_BIT | VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT;
VkSubpassDependency endDependency{};
endDependency.srcSubpass = 0;
endDependency.dstSubpass = VK_SUBPASS_EXTERNAL;
endDependency.srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT | VK_PIPELINE_STAGE_LATE_FRAGMENT_TESTS_BIT;
endDependency.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT
| VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_READ_BIT | VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT;
endDependency.dstStageMask = VK_PIPELINE_STAGE_TRANSFER_BIT;
endDependency.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT;
std::vector<VkAttachmentDescription> attachments;
std::vector<VkAttachmentReference> colorAttachmentRefs;
std::vector<VkAttachmentReference> colorResolveAttachmentRefs;
uint32_t attachment = 0;
for (const auto &colorAttachment : configuration.colorAttachments)
{
VkAttachmentReference reference{};
reference.attachment = attachment++;
reference.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
colorAttachmentRefs.push_back(reference);
VkAttachmentDescription colorDescription{};
colorDescription.format = colorAttachment.format;
colorDescription.samples = colorAttachment.msaaSamples;
colorDescription.loadOp = colorAttachment.loadOp;
colorDescription.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
colorDescription.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
colorDescription.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
if (colorAttachment.msaaSamples > 1)
{
colorDescription.initialLayout = colorAttachment.msaaLayout;
colorDescription.finalLayout = colorAttachment.msaaLayout;
}
else
{
colorDescription.initialLayout = colorAttachment.layout;
colorDescription.finalLayout = colorAttachment.layout;
}
attachments.push_back(colorDescription);
// I had a TODO here, but I don't remember why...
if (colorAttachment.layout != VK_IMAGE_LAYOUT_UNDEFINED)
{
Vulkan::addImageLayoutTransitionOptions(true, true, false, colorAttachment.layout, beginDependency.srcAccessMask, beginDependency.srcStageMask);
Vulkan::addImageLayoutTransitionOptions(false, true, false, colorAttachment.layout, endDependency.dstAccessMask, endDependency.dstStageMask);
}
if (colorAttachment.msaaLayout != VK_IMAGE_LAYOUT_UNDEFINED)
{
Vulkan::addImageLayoutTransitionOptions(true, true, false, colorAttachment.msaaLayout, beginDependency.srcAccessMask, beginDependency.srcStageMask);
Vulkan::addImageLayoutTransitionOptions(false, true, false, colorAttachment.msaaLayout, endDependency.dstAccessMask, endDependency.dstStageMask);
}
}
subPass.colorAttachmentCount = static_cast<uint32_t>(configuration.colorAttachments.size());
subPass.pColorAttachments = colorAttachmentRefs.data();
VkAttachmentReference depthStencilAttachmentRef{};
if (configuration.staticData.depthStencilAttachment.format != VK_FORMAT_UNDEFINED)
{
depthStencilAttachmentRef.attachment = attachment++;
depthStencilAttachmentRef.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
subPass.pDepthStencilAttachment = &depthStencilAttachmentRef;
VkAttachmentDescription depthStencilAttachment{};
depthStencilAttachment.format = configuration.staticData.depthStencilAttachment.format;
depthStencilAttachment.samples = configuration.staticData.depthStencilAttachment.msaaSamples;
depthStencilAttachment.loadOp = configuration.staticData.depthStencilAttachment.depthLoadOp;
depthStencilAttachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
depthStencilAttachment.stencilLoadOp = configuration.staticData.depthStencilAttachment.stencilLoadOp;
depthStencilAttachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_STORE;
depthStencilAttachment.initialLayout = configuration.staticData.depthStencilAttachment.layout;
depthStencilAttachment.finalLayout = configuration.staticData.depthStencilAttachment.layout;
attachments.push_back(depthStencilAttachment);
Vulkan::addImageLayoutTransitionOptions(true, true, true, configuration.staticData.depthStencilAttachment.layout, beginDependency.srcAccessMask, beginDependency.srcStageMask);
Vulkan::addImageLayoutTransitionOptions(false, true, true, configuration.staticData.depthStencilAttachment.layout, endDependency.dstAccessMask, endDependency.dstStageMask);
}
// Add resolve attachments after everything else to make pClearValues simpler to implement.
if (configuration.staticData.resolve)
{
for (const auto &colorAttachment : configuration.colorAttachments)
{
VkAttachmentReference reference{};
reference.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
if (colorAttachment.layout == VK_IMAGE_LAYOUT_UNDEFINED)
{
reference.attachment = VK_ATTACHMENT_UNUSED;
colorResolveAttachmentRefs.push_back(reference);
}
else
{
reference.attachment = attachment++;
colorResolveAttachmentRefs.push_back(reference);
VkAttachmentDescription resolveDescription{};
resolveDescription.format = colorAttachment.format;
resolveDescription.samples = VK_SAMPLE_COUNT_1_BIT;
resolveDescription.loadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
resolveDescription.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
resolveDescription.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
resolveDescription.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
resolveDescription.initialLayout = colorAttachment.layout;
resolveDescription.finalLayout = colorAttachment.layout;
attachments.push_back(resolveDescription);
}
}
subPass.pResolveAttachments = colorResolveAttachmentRefs.data();
}
std::array<VkSubpassDependency, 2> dependencies = { beginDependency, endDependency };
VkRenderPassCreateInfo createInfo{};
createInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
createInfo.attachmentCount = static_cast<uint32_t>(attachments.size());
createInfo.pAttachments = attachments.data();
createInfo.subpassCount = 1;
createInfo.pSubpasses = &subPass;
createInfo.dependencyCount = static_cast<uint32_t>(dependencies.size());
createInfo.pDependencies = dependencies.data();
VkRenderPass renderPass;
VkResult result = vkCreateRenderPass(device, &createInfo, nullptr, &renderPass);
if (result != VK_SUCCESS)
throw love::Exception("Failed to create Vulkan render pass: %s", Vulkan::getErrorString(result));
return renderPass;
}
VkRenderPass Graphics::getRenderPass(RenderPassConfiguration &configuration)
{
VkRenderPass renderPass;
auto it = renderPasses.find(configuration);
if (it != renderPasses.end())
renderPass = it->second;
else
{
renderPass = createRenderPass(configuration);
renderPasses[configuration] = renderPass;
}
return renderPass;
}
void Graphics::createVulkanVertexFormat(
Shader *shader,
const VertexAttributes &attributes,
std::vector<VkVertexInputBindingDescription> &bindingDescriptions,
std::vector<VkVertexInputAttributeDescription> &attributeDescriptions)
{
std::set<uint32_t> usedBuffers;
for (const auto &pair : shader->getVertexAttributeIndices())
{
int i = pair.second.index;
uint32 bit = 1u << i;
VkVertexInputAttributeDescription attribdesc{};
attribdesc.location = i;
if (attributes.enableBits & bit)
{
const auto &attrib = attributes.attribs[i];
int bufferbinding = VERTEX_BUFFER_BINDING_START + attrib.bufferIndex;
attribdesc.binding = bufferbinding;
attribdesc.offset = attrib.offsetFromVertex;
attribdesc.format = Vulkan::getVulkanVertexFormat(attrib.getFormat());
if (usedBuffers.find(bufferbinding) == usedBuffers.end())
{
usedBuffers.insert(bufferbinding);
VkVertexInputBindingDescription bindingdesc{};
bindingdesc.binding = bufferbinding;
if (attributes.instanceBits & (1u << attrib.bufferIndex))
bindingdesc.inputRate = VK_VERTEX_INPUT_RATE_INSTANCE;
else
bindingdesc.inputRate = VK_VERTEX_INPUT_RATE_VERTEX;
bindingdesc.stride = attributes.bufferLayouts[attrib.bufferIndex].stride;
bindingDescriptions.push_back(bindingdesc);
}
}
else
{
attribdesc.binding = DEFAULT_VERTEX_BUFFER_BINDING;
// Indices should match the creation parameters for defaultVertexBuffer.
switch (pair.second.baseType)
{
case DATA_BASETYPE_INT:
attribdesc.offset = defaultVertexBuffer->getDataMember(1).offset;
attribdesc.format = Vulkan::getVulkanVertexFormat(DATAFORMAT_INT32_VEC4);
break;
case DATA_BASETYPE_UINT:
attribdesc.offset = defaultVertexBuffer->getDataMember(1).offset;
attribdesc.format = Vulkan::getVulkanVertexFormat(DATAFORMAT_UINT32_VEC4);
break;
case DATA_BASETYPE_FLOAT:
default:
if (i == ATTRIB_COLOR)
attribdesc.offset = defaultVertexBuffer->getDataMember(2).offset;
else
attribdesc.offset = defaultVertexBuffer->getDataMember(0).offset;
attribdesc.format = Vulkan::getVulkanVertexFormat(DATAFORMAT_FLOAT_VEC4);
break;
}
if (usedBuffers.find(DEFAULT_VERTEX_BUFFER_BINDING) == usedBuffers.end())
{
usedBuffers.insert(DEFAULT_VERTEX_BUFFER_BINDING);
VkVertexInputBindingDescription bindingdesc{};
bindingdesc.binding = DEFAULT_VERTEX_BUFFER_BINDING;
bindingdesc.inputRate = VK_VERTEX_INPUT_RATE_VERTEX;
bindingdesc.stride = 0; // no stride, will always read the same coord multiple times.
bindingDescriptions.push_back(bindingdesc);
}
}
attributeDescriptions.push_back(attribdesc);
}
}
void Graphics::prepareDraw(VertexAttributesID attributesID, const BufferBindings &buffers, graphics::Texture *texture, PrimitiveType primitiveType, CullMode cullmode)
{
if (!renderPassState.active)
startRenderPass();
auto s = dynamic_cast<Shader*>(Shader::current);
usedShadersInFrame.insert(s);
GraphicsPipelineConfigurationFull configuration{};
configuration.core.renderPass = renderPassState.beginInfo.renderPass;
configuration.core.attributesID = attributesID;
configuration.core.wireFrame = states.back().wireframe;
configuration.core.blendStateKey = states.back().blend.toKey();
configuration.core.colorChannelMask = states.back().colorMask;
configuration.core.msaaSamples = renderPassState.msaa;
configuration.core.numColorAttachments = renderPassState.numColorAttachments;
configuration.core.packedColorAttachmentFormats = renderPassState.packedColorAttachmentFormats;
configuration.core.primitiveType = primitiveType;
VkPipeline pipeline = VK_NULL_HANDLE;
if (optionalDeviceExtensions.extendedDynamicState)
{
vkCmdSetCullModeEXT(commandBuffers.at(currentFrame), Vulkan::getCullMode(cullmode));
pipeline = s->getCachedGraphicsPipeline(this, configuration.core);
}
else
{
configuration.noDynamicState.winding = states.back().winding;
configuration.noDynamicState.depthState.compare = states.back().depthTest;
configuration.noDynamicState.depthState.write = states.back().depthWrite;
configuration.noDynamicState.stencilAction = states.back().stencil.action;
configuration.noDynamicState.stencilCompare = states.back().stencil.compare;
configuration.noDynamicState.cullmode = cullmode;
pipeline = s->getCachedGraphicsPipeline(this, configuration);
}
if (pipeline != renderPassState.pipeline)
{
vkCmdBindPipeline(commandBuffers.at(currentFrame), VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
renderPassState.pipeline = pipeline;
}
s->setMainTex(texture);
s->cmdPushDescriptorSets(commandBuffers.at(currentFrame), VK_PIPELINE_BIND_POINT_GRAPHICS);
VkBuffer vkbuffers[BufferBindings::MAX];
VkDeviceSize vkoffsets[BufferBindings::MAX];
uint32 buffercount = 0;
uint32 allbits = buffers.useBits;
uint32 i = 0;
while (allbits)
{
uint32 bit = 1u << i;
// TODO: handle split ranges.
if (buffers.useBits & bit)
{
vkbuffers[buffercount] = (VkBuffer)buffers.info[i].buffer->getHandle();
vkoffsets[buffercount] = (VkDeviceSize)buffers.info[i].offset;
buffercount++;
}
i++;
allbits >>= 1;
}
if (buffercount > 0)
vkCmdBindVertexBuffers(commandBuffers.at(currentFrame), VERTEX_BUFFER_BINDING_START, buffercount, vkbuffers, vkoffsets);
}
void Graphics::setDefaultRenderPass()
{
uint32_t numClearValues = 2;
renderPassState.clearColors.resize(numClearValues);
renderPassState.beginInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
renderPassState.beginInfo.renderPass = VK_NULL_HANDLE;
renderPassState.beginInfo.framebuffer = VK_NULL_HANDLE;
renderPassState.beginInfo.renderArea.offset = { 0, 0 };
renderPassState.beginInfo.renderArea.extent = swapChainExtent;
renderPassState.beginInfo.clearValueCount = numClearValues;
renderPassState.beginInfo.pClearValues = renderPassState.clearColors.data();
renderPassState.isWindow = true;
renderPassState.pipeline = VK_NULL_HANDLE;
renderPassState.width = static_cast<float>(swapChainExtent.width);
renderPassState.height = static_cast<float>(swapChainExtent.height);
renderPassState.msaa = msaaSamples;
renderPassState.numColorAttachments = 1;
renderPassState.packedColorAttachmentFormats = (uint8)swapChainPixelFormat;
RenderPassConfiguration renderPassConfiguration{};
VkFormat dsformat = backbufferHasDepth || backbufferHasStencil ? depthStencilFormat : VK_FORMAT_UNDEFINED;
renderPassConfiguration.staticData.depthStencilAttachment = { dsformat, VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL, VK_ATTACHMENT_LOAD_OP_LOAD, VK_ATTACHMENT_LOAD_OP_LOAD, msaaSamples };
if (msaaSamples & VK_SAMPLE_COUNT_1_BIT)
renderPassConfiguration.staticData.resolve = false;
else
renderPassConfiguration.staticData.resolve = true;
FramebufferConfiguration framebufferConfiguration{};
framebufferConfiguration.staticData.depthView = depthImageView;
framebufferConfiguration.staticData.width = swapChainExtent.width;
framebufferConfiguration.staticData.height = swapChainExtent.height;
if (msaaSamples & VK_SAMPLE_COUNT_1_BIT)
{
renderPassConfiguration.colorAttachments.push_back({ swapChainImageFormat, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, VK_IMAGE_LAYOUT_UNDEFINED, VK_ATTACHMENT_LOAD_OP_LOAD, msaaSamples });
if (!swapChainImageViews.empty())
framebufferConfiguration.colorViews.push_back(swapChainImageViews.at(imageIndex));
else
framebufferConfiguration.colorViews.push_back(fakeBackbuffer->getRenderTargetView(0, 0));
}
else
{
renderPassConfiguration.colorAttachments.push_back({ swapChainImageFormat, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, VK_ATTACHMENT_LOAD_OP_LOAD, msaaSamples });
framebufferConfiguration.colorViews.push_back(colorImageView);
if (!swapChainImageViews.empty())
framebufferConfiguration.colorResolveViews.push_back(swapChainImageViews.at(imageIndex));
else
framebufferConfiguration.colorResolveViews.push_back(fakeBackbuffer->getRenderTargetView(0, 0));
}
renderPassState.renderPassConfiguration = std::move(renderPassConfiguration);
renderPassState.framebufferConfiguration = std::move(framebufferConfiguration);
// Can't call clear() here because it depends on current RT state, which might not be
// set yet when this is called from within setRenderTargetsInternal.
if (renderPassState.windowClearRequested)
{
if (renderPassState.mainWindowClearColorValue.hasValue)
{
renderPassState.renderPassConfiguration.colorAttachments[0].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
renderPassState.clearColors[0].color = Texture::getClearColor(nullptr, renderPassState.mainWindowClearColorValue.value);
}
if (renderPassState.mainWindowClearDepthValue.hasValue && backbufferHasDepth)
{
renderPassState.renderPassConfiguration.staticData.depthStencilAttachment.depthLoadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
renderPassState.clearColors[1].depthStencil.depth = static_cast<float>(renderPassState.mainWindowClearDepthValue.value);
}
if (renderPassState.mainWindowClearStencilValue.hasValue && backbufferHasStencil)
{
renderPassState.renderPassConfiguration.staticData.depthStencilAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
renderPassState.clearColors[1].depthStencil.stencil = static_cast<uint32_t>(renderPassState.mainWindowClearStencilValue.value);
}
}
}
void Graphics::setRenderPass(const RenderTargets &rts, int pixelw, int pixelh)
{
RenderPassConfiguration renderPassConfiguration{};
VkSampleCountFlagBits msaa = VK_SAMPLE_COUNT_1_BIT;
for (const auto &color : rts.colors)
{
auto tex = (Texture *)color.texture;
renderPassConfiguration.colorAttachments.push_back({
Vulkan::getTextureFormat(tex->getPixelFormat()).internalFormat,
tex->getImageLayout(),
tex->getMSAAImageLayout(),
VK_ATTACHMENT_LOAD_OP_LOAD,
tex->getMsaaSamples() });
if (tex->getMSAAImageLayout() != VK_IMAGE_LAYOUT_UNDEFINED && tex->getImageLayout() != VK_IMAGE_LAYOUT_UNDEFINED)
renderPassConfiguration.staticData.resolve = true;
msaa = tex->getMsaaSamples();
}
if (rts.depthStencil.texture != nullptr)
{
auto tex = (Texture *)rts.depthStencil.texture;
renderPassConfiguration.staticData.depthStencilAttachment = {
Vulkan::getTextureFormat(rts.depthStencil.texture->getPixelFormat()).internalFormat,
tex->getImageLayout(),
VK_ATTACHMENT_LOAD_OP_LOAD,
VK_ATTACHMENT_LOAD_OP_LOAD,
tex->getMsaaSamples() };
msaa = tex->getMsaaSamples();
}
FramebufferConfiguration configuration{};
for (const auto &color : rts.colors)
{
auto tex = (Texture*)color.texture;
if (tex->getMSAA() > 1)
{
configuration.colorViews.push_back(tex->getMSAARenderTargetView(color.mipmap, color.slice));
configuration.colorResolveViews.push_back(tex->getRenderTargetView(color.mipmap, color.slice));
}
else
{
configuration.colorViews.push_back(tex->getRenderTargetView(color.mipmap, color.slice));
}
}
if (rts.depthStencil.texture != nullptr)
{
auto tex = (Texture*)rts.depthStencil.texture;
if (tex->getMSAA() > 1)
configuration.staticData.depthView = tex->getMSAARenderTargetView(rts.depthStencil.mipmap, rts.depthStencil.slice);
else
configuration.staticData.depthView = tex->getRenderTargetView(rts.depthStencil.mipmap, rts.depthStencil.slice);
}
configuration.staticData.width = static_cast<uint32_t>(pixelw);
configuration.staticData.height = static_cast<uint32_t>(pixelh);
uint32_t numClearValues = static_cast<uint32_t>(rts.colors.size() + 1);
renderPassState.clearColors.resize(numClearValues);
renderPassState.beginInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
renderPassState.beginInfo.renderPass = VK_NULL_HANDLE;
renderPassState.beginInfo.framebuffer = VK_NULL_HANDLE;
renderPassState.beginInfo.renderArea.offset = {0, 0};
renderPassState.beginInfo.renderArea.extent.width = static_cast<uint32_t>(pixelw);
renderPassState.beginInfo.renderArea.extent.height = static_cast<uint32_t>(pixelh);
renderPassState.beginInfo.clearValueCount = numClearValues;
renderPassState.beginInfo.pClearValues = renderPassState.clearColors.data();
renderPassState.isWindow = false;
renderPassState.renderPassConfiguration = renderPassConfiguration;
renderPassState.framebufferConfiguration = configuration;
renderPassState.pipeline = VK_NULL_HANDLE;
renderPassState.width = static_cast<float>(pixelw);
renderPassState.height = static_cast<float>(pixelh);
renderPassState.msaa = msaa;
renderPassState.numColorAttachments = static_cast<uint32_t>(rts.colors.size());
renderPassState.packedColorAttachmentFormats = 0;
for (size_t i = 0; i < rts.colors.size(); i++)
renderPassState.packedColorAttachmentFormats |= ((uint64)rts.colors[i].texture->getPixelFormat()) << (i * 8ull);
}
void Graphics::startRenderPass()
{
renderPassState.active = true;
if (renderPassState.isWindow && renderPassState.windowClearRequested)
renderPassState.windowClearRequested = false;
VkViewport viewport{};
viewport.x = 0.0f;
viewport.y = 0.0f;
viewport.width = renderPassState.width;
viewport.height = renderPassState.height;
viewport.minDepth = 0.0f;
viewport.maxDepth = 1.0f;
vkCmdSetViewport(commandBuffers.at(currentFrame), 0, 1, &viewport);
renderPassState.beginInfo.renderPass = getRenderPass(renderPassState.renderPassConfiguration);
renderPassState.framebufferConfiguration.staticData.renderPass = renderPassState.beginInfo.renderPass;
renderPassState.beginInfo.framebuffer = getFramebuffer(renderPassState.framebufferConfiguration);
vkCmdBeginRenderPass(commandBuffers.at(currentFrame), &renderPassState.beginInfo, VK_SUBPASS_CONTENTS_INLINE);
applyScissor();
}
void Graphics::endRenderPass()
{
renderPassState.active = false;
vkCmdEndRenderPass(commandBuffers.at(currentFrame));
for (auto &colorAttachment : renderPassState.renderPassConfiguration.colorAttachments)
colorAttachment.loadOp = VK_ATTACHMENT_LOAD_OP_LOAD;
renderPassState.renderPassConfiguration.staticData.depthStencilAttachment.depthLoadOp = VK_ATTACHMENT_LOAD_OP_LOAD;
renderPassState.renderPassConfiguration.staticData.depthStencilAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_LOAD;
}
VkSampler Graphics::createSampler(const SamplerState &samplerState)
{
VkSamplerCreateInfo samplerInfo{};
samplerInfo.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
samplerInfo.magFilter = Vulkan::getFilter(samplerState.magFilter);
samplerInfo.minFilter = Vulkan::getFilter(samplerState.minFilter);
samplerInfo.addressModeU = Vulkan::getWrapMode(samplerState.wrapU);
samplerInfo.addressModeV = Vulkan::getWrapMode(samplerState.wrapV);
samplerInfo.addressModeW = Vulkan::getWrapMode(samplerState.wrapW);
samplerInfo.anisotropyEnable = samplerState.maxAnisotropy > 1 ? VK_TRUE : VK_FALSE;
samplerInfo.maxAnisotropy = static_cast<float>(samplerState.maxAnisotropy);
// TODO: This probably needs to branch on a pixel format to determine whether
// it should be float vs int, and opaque vs transparent.
bool clampone = samplerState.wrapU == SamplerState::WRAP_CLAMP_ONE
|| samplerState.wrapV == SamplerState::WRAP_CLAMP_ONE
|| samplerState.wrapW == SamplerState::WRAP_CLAMP_ONE;
samplerInfo.borderColor = clampone ? VK_BORDER_COLOR_INT_OPAQUE_WHITE : VK_BORDER_COLOR_INT_OPAQUE_BLACK;
samplerInfo.unnormalizedCoordinates = VK_FALSE;
if (samplerState.depthSampleMode.hasValue)
{
samplerInfo.compareEnable = VK_TRUE;
// See the comment in renderstate.h
samplerInfo.compareOp = Vulkan::getCompareOp(getReversedCompareMode(samplerState.depthSampleMode.value));
}
else
{
samplerInfo.compareEnable = VK_FALSE;
samplerInfo.compareOp = VK_COMPARE_OP_ALWAYS;
}
samplerInfo.mipmapMode = Vulkan::getMipMapMode(samplerState.mipmapFilter);
samplerInfo.mipLodBias = samplerState.lodBias;
samplerInfo.minLod = static_cast<float>(samplerState.minLod);
samplerInfo.maxLod = static_cast<float>(samplerState.maxLod);
VkSampler sampler;
VkResult result = vkCreateSampler(device, &samplerInfo, nullptr, &sampler);
if (result != VK_SUCCESS)
throw love::Exception("Failed to create Vulkan sampler: %s", Vulkan::getErrorString(result));
return sampler;
}
void Graphics::requestSwapchainRecreation()
{
if (swapChain != VK_NULL_HANDLE)
{
swapChainRecreationRequested = true;
}
}
VkSampler Graphics::getCachedSampler(const SamplerState &samplerState)
{
auto samplerkey = samplerState.toKey();
auto it = samplers.find(samplerkey);
if (it != samplers.end())
return it->second;
else
{
VkSampler sampler = createSampler(samplerState);
samplers.insert({ samplerkey, sampler });
return sampler;
}
}
static uint64 getDescriptorPoolsKey(int dynamicUniformBuffers, int sampledTextures, int storageTextures, int texelBuffers, int storageBuffers)
{
return (((int64)dynamicUniformBuffers & 0xFF) << 0)
| (((int64)sampledTextures & 0xFF) << 8)
| (((int64)storageTextures & 0xFF) << 16)
| (((int64)texelBuffers & 0xFF) << 24)
| (((int64)storageBuffers & 0xFF) << 32);
}
SharedDescriptorPools *Graphics::acquireDescriptorPools(int dynamicUniformBuffers, int sampledTextures, int storageTextures, int texelBuffers, int storageBuffers)
{
uint64 key = getDescriptorPoolsKey(dynamicUniformBuffers, sampledTextures, storageTextures, texelBuffers, storageBuffers);
auto it = sharedDescriptorPools.find(key);
if (it != sharedDescriptorPools.end())
{
it->second.referenceCount++;
return it->second.pools;
}
auto pools = new SharedDescriptorPools(device, dynamicUniformBuffers, sampledTextures, storageTextures, texelBuffers, storageBuffers);
SharedDescriptorPoolsRef ref{};
ref.pools = pools;
ref.referenceCount = 1;
sharedDescriptorPools[key] = ref;
return pools;
}
void Graphics::releaseDescriptorPools(SharedDescriptorPools *p)
{
uint64 key = getDescriptorPoolsKey(p->dynamicUniformBuffers, p->sampledTextures, p->storageTextures, p->texelBuffers, p->storageBuffers);
auto it = sharedDescriptorPools.find(key);
if (it != sharedDescriptorPools.end())
{
it->second.referenceCount--;
if (it->second.referenceCount <= 0)
{
delete it->second.pools;
sharedDescriptorPools.erase(key);
}
}
}
VkPipeline Graphics::createGraphicsPipeline(Shader *shader, const GraphicsPipelineConfigurationCore &configuration, const GraphicsPipelineConfigurationNoDynamicState *noDynamicStateConfiguration)
{
VkGraphicsPipelineCreateInfo pipelineInfo{};
pipelineInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
auto &shaderStages = shader->getShaderStages();
std::vector<VkVertexInputBindingDescription> bindingDescriptions;
std::vector<VkVertexInputAttributeDescription> attributeDescriptions;
VertexAttributes vertexAttributes;
findVertexAttributes(configuration.attributesID, vertexAttributes);
createVulkanVertexFormat(shader, vertexAttributes, bindingDescriptions, attributeDescriptions);
VkPipelineVertexInputStateCreateInfo vertexInputInfo{};
vertexInputInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
vertexInputInfo.vertexBindingDescriptionCount = static_cast<uint32_t>(bindingDescriptions.size());
vertexInputInfo.pVertexBindingDescriptions = bindingDescriptions.data();
vertexInputInfo.vertexAttributeDescriptionCount = static_cast<uint32_t>(attributeDescriptions.size());
vertexInputInfo.pVertexAttributeDescriptions = attributeDescriptions.data();
VkPipelineViewportStateCreateInfo viewportState{};
viewportState.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
viewportState.viewportCount = 1;
viewportState.scissorCount = 1;
VkPipelineMultisampleStateCreateInfo multisampling{};
multisampling.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
multisampling.sampleShadingEnable = VK_FALSE;
multisampling.rasterizationSamples = configuration.msaaSamples;
VkPipelineRasterizationStateCreateInfo rasterizer{};
rasterizer.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
rasterizer.depthClampEnable = VK_FALSE;
rasterizer.rasterizerDiscardEnable = VK_FALSE;
rasterizer.polygonMode = Vulkan::getPolygonMode(configuration.wireFrame);
rasterizer.lineWidth = 1.0f;
if (!optionalDeviceExtensions.extendedDynamicState)
{
rasterizer.cullMode = Vulkan::getCullMode(noDynamicStateConfiguration->cullmode);
rasterizer.frontFace = Vulkan::getFrontFace(noDynamicStateConfiguration->winding);
}
rasterizer.depthBiasEnable = VK_FALSE;
rasterizer.depthBiasConstantFactor = 0.0f;
rasterizer.depthBiasClamp = 0.0f;
rasterizer.depthBiasSlopeFactor = 0.0f;
VkPipelineInputAssemblyStateCreateInfo inputAssembly{};
inputAssembly.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
inputAssembly.topology = Vulkan::getPrimitiveTypeTopology(configuration.primitiveType);
inputAssembly.primitiveRestartEnable = VK_FALSE;
VkPipelineDepthStencilStateCreateInfo depthStencil{};
depthStencil.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO;
depthStencil.depthTestEnable = VK_TRUE;
if (!optionalDeviceExtensions.extendedDynamicState)
{
depthStencil.depthWriteEnable = Vulkan::getBool(noDynamicStateConfiguration->depthState.write);
depthStencil.depthCompareOp = Vulkan::getCompareOp(noDynamicStateConfiguration->depthState.compare);
}
depthStencil.depthBoundsTestEnable = VK_FALSE;
depthStencil.minDepthBounds = 0.0f;
depthStencil.maxDepthBounds = 1.0f;
depthStencil.stencilTestEnable = VK_TRUE;
if (!optionalDeviceExtensions.extendedDynamicState)
{
depthStencil.front.failOp = VK_STENCIL_OP_KEEP;
depthStencil.front.passOp = Vulkan::getStencilOp(noDynamicStateConfiguration->stencilAction);
depthStencil.front.depthFailOp = VK_STENCIL_OP_KEEP;
depthStencil.front.compareOp = Vulkan::getCompareOp(getReversedCompareMode(noDynamicStateConfiguration->stencilCompare));
depthStencil.back.failOp = VK_STENCIL_OP_KEEP;
depthStencil.back.passOp = Vulkan::getStencilOp(noDynamicStateConfiguration->stencilAction);
depthStencil.back.depthFailOp = VK_STENCIL_OP_KEEP;
depthStencil.back.compareOp = Vulkan::getCompareOp(getReversedCompareMode(noDynamicStateConfiguration->stencilCompare));
}
pipelineInfo.pDepthStencilState = &depthStencil;
BlendState blendState = BlendState::fromKey(configuration.blendStateKey);
VkPipelineColorBlendAttachmentState colorBlendAttachment{};
colorBlendAttachment.colorWriteMask = Vulkan::getColorMask(configuration.colorChannelMask);
colorBlendAttachment.blendEnable = Vulkan::getBool(blendState.enable);
colorBlendAttachment.srcColorBlendFactor = Vulkan::getBlendFactor(blendState.srcFactorRGB);
colorBlendAttachment.dstColorBlendFactor = Vulkan::getBlendFactor(blendState.dstFactorRGB);
colorBlendAttachment.colorBlendOp = Vulkan::getBlendOp(blendState.operationRGB);
colorBlendAttachment.srcAlphaBlendFactor = Vulkan::getBlendFactor(blendState.srcFactorA);
colorBlendAttachment.dstAlphaBlendFactor = Vulkan::getBlendFactor(blendState.dstFactorA);
colorBlendAttachment.alphaBlendOp = Vulkan::getBlendOp(blendState.operationA);
std::vector<VkPipelineColorBlendAttachmentState> colorBlendAttachments(configuration.numColorAttachments, colorBlendAttachment);
if (blendState.enable)
{
for (uint32 i = 0; i < configuration.numColorAttachments; i++)
{
PixelFormat format = (PixelFormat)((configuration.packedColorAttachmentFormats >> (i * 8ull)) & 0xFF);
if (!isPixelFormatSupported(format, PIXELFORMATUSAGEFLAGS_BLEND))
colorBlendAttachments[i].blendEnable = false;
}
}
VkPipelineColorBlendStateCreateInfo colorBlending{};
colorBlending.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
colorBlending.logicOpEnable = VK_FALSE;
colorBlending.logicOp = VK_LOGIC_OP_COPY;
colorBlending.attachmentCount = static_cast<uint32_t>(colorBlendAttachments.size());
colorBlending.pAttachments = colorBlendAttachments.data();
colorBlending.blendConstants[0] = 0.0f;
colorBlending.blendConstants[1] = 0.0f;
colorBlending.blendConstants[2] = 0.0f;
colorBlending.blendConstants[3] = 0.0f;
std::vector<VkDynamicState> dynamicStates;
if (optionalDeviceExtensions.extendedDynamicState)
dynamicStates = {
VK_DYNAMIC_STATE_SCISSOR,
VK_DYNAMIC_STATE_VIEWPORT,
VK_DYNAMIC_STATE_STENCIL_WRITE_MASK,
VK_DYNAMIC_STATE_STENCIL_COMPARE_MASK,
VK_DYNAMIC_STATE_STENCIL_REFERENCE,
VK_DYNAMIC_STATE_CULL_MODE_EXT,
VK_DYNAMIC_STATE_FRONT_FACE_EXT,
VK_DYNAMIC_STATE_DEPTH_WRITE_ENABLE_EXT,
VK_DYNAMIC_STATE_DEPTH_COMPARE_OP_EXT,
VK_DYNAMIC_STATE_STENCIL_OP_EXT,
};
else
dynamicStates = {
VK_DYNAMIC_STATE_SCISSOR,
VK_DYNAMIC_STATE_VIEWPORT,
VK_DYNAMIC_STATE_STENCIL_WRITE_MASK,
VK_DYNAMIC_STATE_STENCIL_COMPARE_MASK,
VK_DYNAMIC_STATE_STENCIL_REFERENCE,
};
VkPipelineDynamicStateCreateInfo dynamicState{};
dynamicState.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
dynamicState.dynamicStateCount = static_cast<uint32_t>(dynamicStates.size());
dynamicState.pDynamicStates = dynamicStates.data();
pipelineInfo.stageCount = static_cast<uint32_t>(shaderStages.size());
pipelineInfo.pStages = shaderStages.data();
pipelineInfo.pVertexInputState = &vertexInputInfo;
pipelineInfo.pInputAssemblyState = &inputAssembly;
pipelineInfo.pViewportState = &viewportState;
pipelineInfo.pRasterizationState = &rasterizer;
pipelineInfo.pMultisampleState = &multisampling;
pipelineInfo.pColorBlendState = &colorBlending;
pipelineInfo.pDynamicState = &dynamicState;
pipelineInfo.layout = shader->getGraphicsPipelineLayout();
pipelineInfo.subpass = 0;
pipelineInfo.basePipelineHandle = VK_NULL_HANDLE;
pipelineInfo.basePipelineIndex = -1;
pipelineInfo.renderPass = configuration.renderPass;
VkPipeline graphicsPipeline;
VkResult result = vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineInfo, nullptr, &graphicsPipeline);
if (result != VK_SUCCESS)
throw love::Exception("Failed to create Vulkan graphics pipeline: %s", Vulkan::getErrorString(result));
return graphicsPipeline;
}
VkSampleCountFlagBits Graphics::getMsaaCount(int requestedMsaa) const
{
VkPhysicalDeviceProperties physicalDeviceProperties;
vkGetPhysicalDeviceProperties(physicalDevice, &physicalDeviceProperties);
VkSampleCountFlags counts = physicalDeviceProperties.limits.framebufferColorSampleCounts & physicalDeviceProperties.limits.framebufferDepthSampleCounts;
if (counts & VK_SAMPLE_COUNT_64_BIT && requestedMsaa >= 64)
return VK_SAMPLE_COUNT_64_BIT;
else if (counts & VK_SAMPLE_COUNT_32_BIT && requestedMsaa >= 32)
return VK_SAMPLE_COUNT_32_BIT;
else if (counts & VK_SAMPLE_COUNT_16_BIT && requestedMsaa >= 16)
return VK_SAMPLE_COUNT_16_BIT;
else if (counts & VK_SAMPLE_COUNT_8_BIT && requestedMsaa >= 8)
return VK_SAMPLE_COUNT_8_BIT;
else if (counts & VK_SAMPLE_COUNT_4_BIT && requestedMsaa >= 4)
return VK_SAMPLE_COUNT_4_BIT;
else if (counts & VK_SAMPLE_COUNT_2_BIT && requestedMsaa >= 2)
return VK_SAMPLE_COUNT_2_BIT;
else
return VK_SAMPLE_COUNT_1_BIT;
}
void Graphics::setVsync(int vsync)
{
if (vsync != this->vsync)
{
this->vsync = vsync;
// With the extension VK_EXT_swapchain_maintenance1 a swapchain recreation might not be needed
// https://github.com/KhronosGroup/Vulkan-Docs/blob/main/proposals/VK_EXT_swapchain_maintenance1.adoc
// However, there are not any drivers that support it, yet.
// Reevaluate again in the future.
requestSwapchainRecreation();
}
}
int Graphics::getVsync() const
{
return vsync;
}
void Graphics::mapLocalUniformData(void *data, size_t size, VkDescriptorBufferInfo &bufferInfo)
{
size_t alignedSize = alignUp(size, minUniformBufferOffsetAlignment);
if (localUniformBuffer->getUsableSize() < alignedSize)
localUniformBuffer.set(new StreamBuffer(this, BUFFERUSAGE_UNIFORM, localUniformBuffer->getSize() * 2), Acquire::NORETAIN);
auto mapInfo = localUniformBuffer->map(size);
memcpy(mapInfo.data, data, size);
bufferInfo.buffer = (VkBuffer)localUniformBuffer->getHandle();
bufferInfo.offset = localUniformBuffer->unmap(size);
bufferInfo.range = size;
localUniformBuffer->markUsed(alignedSize);
}
void Graphics::createColorResources()
{
if (msaaSamples & VK_SAMPLE_COUNT_1_BIT)
{
colorImage = VK_NULL_HANDLE;
colorImageView = VK_NULL_HANDLE;
}
else
{
VkFormat colorFormat = swapChainImageFormat;
VkImageCreateInfo imageInfo{};
imageInfo.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
imageInfo.imageType = VK_IMAGE_TYPE_2D;
imageInfo.format = colorFormat;
imageInfo.extent.width = swapChainExtent.width;
imageInfo.extent.height = swapChainExtent.height;
imageInfo.extent.depth = 1;
imageInfo.mipLevels = 1;
imageInfo.arrayLayers = 1;
imageInfo.samples = msaaSamples;
imageInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
imageInfo.usage = VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT | VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
imageInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
imageInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
VmaAllocationCreateInfo allocationInfo{};
allocationInfo.usage = VMA_MEMORY_USAGE_AUTO;
allocationInfo.flags = VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT;
VkResult result = vmaCreateImage(vmaAllocator, &imageInfo, &allocationInfo, &colorImage, &colorImageAllocation, nullptr);
if (result != VK_SUCCESS)
throw love::Exception("Failed to create Vulkan MSAA color image: %s", Vulkan::getErrorString(result));
VkImageViewCreateInfo imageViewInfo{};
imageViewInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
imageViewInfo.image = colorImage;
imageViewInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
imageViewInfo.format = colorFormat;
imageViewInfo.components.r = VK_COMPONENT_SWIZZLE_IDENTITY;
imageViewInfo.components.g = VK_COMPONENT_SWIZZLE_IDENTITY;
imageViewInfo.components.b = VK_COMPONENT_SWIZZLE_IDENTITY;
imageViewInfo.components.a = VK_COMPONENT_SWIZZLE_IDENTITY;
imageViewInfo.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
imageViewInfo.subresourceRange.baseMipLevel = 0;
imageViewInfo.subresourceRange.levelCount = 1;
imageViewInfo.subresourceRange.baseArrayLayer = 0;
imageViewInfo.subresourceRange.layerCount = 1;
result = vkCreateImageView(device, &imageViewInfo, nullptr, &colorImageView);
if (result != VK_SUCCESS)
throw love::Exception("Failed to create Vulkan MSAA color image view: %s", Vulkan::getErrorString(result));
}
}
VkFormat Graphics::findSupportedFormat(const std::vector<VkFormat> &candidates, VkImageTiling tiling, VkFormatFeatureFlags features)
{
for (auto format : candidates)
{
VkFormatProperties properties;
vkGetPhysicalDeviceFormatProperties(physicalDevice, format, &properties);
if (tiling == VK_IMAGE_TILING_LINEAR && (properties.linearTilingFeatures & features) == features)
return format;
else if (tiling == VK_IMAGE_TILING_OPTIMAL && (properties.optimalTilingFeatures & features) == features)
return format;
}
throw love::Exception("failed to find supported format");
}
VkFormat Graphics::findDepthFormat()
{
return findSupportedFormat(
{ VK_FORMAT_D32_SFLOAT_S8_UINT, VK_FORMAT_D24_UNORM_S8_UINT },
VK_IMAGE_TILING_OPTIMAL,
VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT
);
}
void Graphics::createDepthResources()
{
if (!backbufferHasDepth && !backbufferHasStencil)
{
depthImage = VK_NULL_HANDLE;
depthImageView = VK_NULL_HANDLE;
return;
}
VkImageCreateInfo imageInfo{};
imageInfo.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
imageInfo.imageType = VK_IMAGE_TYPE_2D;
imageInfo.format = depthStencilFormat;
imageInfo.extent.width = swapChainExtent.width;
imageInfo.extent.height = swapChainExtent.height;
imageInfo.extent.depth = 1;
imageInfo.mipLevels = 1;
imageInfo.arrayLayers = 1;
imageInfo.samples = msaaSamples;
imageInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
imageInfo.usage = VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;
imageInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
imageInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
VmaAllocationCreateInfo allocationInfo{};
allocationInfo.usage = VMA_MEMORY_USAGE_AUTO;
allocationInfo.flags = VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT;
VkResult result = vmaCreateImage(vmaAllocator, &imageInfo, &allocationInfo, &depthImage, &depthImageAllocation, nullptr);
if (result != VK_SUCCESS)
throw love::Exception("Failed to create Vulkan backbuffer depth image: %s", Vulkan::getErrorString(result));
VkImageViewCreateInfo imageViewInfo{};
imageViewInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
imageViewInfo.image = depthImage;
imageViewInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
imageViewInfo.format = depthStencilFormat;
imageViewInfo.components.r = VK_COMPONENT_SWIZZLE_IDENTITY;
imageViewInfo.components.g = VK_COMPONENT_SWIZZLE_IDENTITY;
imageViewInfo.components.b = VK_COMPONENT_SWIZZLE_IDENTITY;
imageViewInfo.components.a = VK_COMPONENT_SWIZZLE_IDENTITY;
if (backbufferHasDepth)
imageViewInfo.subresourceRange.aspectMask |= VK_IMAGE_ASPECT_DEPTH_BIT;
if (backbufferHasStencil)
imageViewInfo.subresourceRange.aspectMask |= VK_IMAGE_ASPECT_STENCIL_BIT;
imageViewInfo.subresourceRange.baseMipLevel = 0;
imageViewInfo.subresourceRange.levelCount = 1;
imageViewInfo.subresourceRange.baseArrayLayer = 0;
imageViewInfo.subresourceRange.layerCount = 1;
result = vkCreateImageView(device, &imageViewInfo, nullptr, &depthImageView);
if (result != VK_SUCCESS)
throw love::Exception("Failed to create Vulkan backbuffer depth image view: %s", Vulkan::getErrorString(result));
}
void Graphics::createCommandPool()
{
QueueFamilyIndices queueFamilyIndices = findQueueFamilies(physicalDevice);
VkCommandPoolCreateInfo poolInfo{};
poolInfo.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
poolInfo.queueFamilyIndex = queueFamilyIndices.graphicsFamily.value;
poolInfo.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT | VK_COMMAND_POOL_CREATE_TRANSIENT_BIT;
VkResult result = vkCreateCommandPool(device, &poolInfo, nullptr, &commandPool);
if (result != VK_SUCCESS)
throw love::Exception("Failed to create Vulkan command pool: %s", Vulkan::getErrorString(result));
}
void Graphics::createCommandBuffers()
{
commandBuffers.resize(MAX_FRAMES_IN_FLIGHT);
VkCommandBufferAllocateInfo allocInfo{};
allocInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
allocInfo.commandPool = commandPool;
allocInfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
allocInfo.commandBufferCount = static_cast<uint32_t>(MAX_FRAMES_IN_FLIGHT);
VkResult result = vkAllocateCommandBuffers(device, &allocInfo, commandBuffers.data());
if (result != VK_SUCCESS)
throw love::Exception("Failed to allocate Vulkan command buffers: %s", Vulkan::getErrorString(result));
}
void Graphics::createSyncObjects()
{
imageAvailableSemaphores.resize(MAX_FRAMES_IN_FLIGHT);
renderFinishedSemaphores.resize(MAX_FRAMES_IN_FLIGHT);
inFlightFences.resize(MAX_FRAMES_IN_FLIGHT);
imagesInFlight.resize(swapChainImages.size(), VK_NULL_HANDLE);
VkSemaphoreCreateInfo semaphoreInfo{};
semaphoreInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
VkFenceCreateInfo fenceInfo{};
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.flags = VK_FENCE_CREATE_SIGNALED_BIT;
for (size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++)
if (vkCreateSemaphore(device, &semaphoreInfo, nullptr, &imageAvailableSemaphores.at(i)) != VK_SUCCESS ||
vkCreateSemaphore(device, &semaphoreInfo, nullptr, &renderFinishedSemaphores.at(i)) != VK_SUCCESS ||
vkCreateFence(device, &fenceInfo, nullptr, &inFlightFences.at(i)) != VK_SUCCESS)
throw love::Exception("Failed to create Vulkan synchronization objects for a frame!");
}
void Graphics::cleanup()
{
for (auto &cleanUpFns : cleanUpFunctions)
for (auto &cleanUpFn : cleanUpFns)
cleanUpFn();
cleanUpFunctions.clear();
vmaDestroyAllocator(vmaAllocator);
for (const auto &s : renderFinishedSemaphores)
vkDestroySemaphore(device, s, nullptr);
renderFinishedSemaphores.clear();
for (const auto &s : imageAvailableSemaphores)
vkDestroySemaphore(device, s, nullptr);
imageAvailableSemaphores.clear();
for (const auto &f : inFlightFences)
vkDestroyFence(device, f, nullptr);
inFlightFences.clear();
if (!commandBuffers.empty())
vkFreeCommandBuffers(device, commandPool, (uint32)commandBuffers.size(), commandBuffers.data());
commandBuffers.clear();
for (auto const &p : samplers)
vkDestroySampler(device, p.second, nullptr);
samplers.clear();
for (const auto &entry : renderPasses)
vkDestroyRenderPass(device, entry.second, nullptr);
renderPasses.clear();
for (const auto &entry : framebuffers)
vkDestroyFramebuffer(device, entry.second, nullptr);
framebuffers.clear();
if (commandPool != VK_NULL_HANDLE)
{
vkDestroyCommandPool(device, commandPool, nullptr);
commandPool = VK_NULL_HANDLE;
}
if (pipelineCache != VK_NULL_HANDLE)
{
vkDestroyPipelineCache(device, pipelineCache, nullptr);
pipelineCache = VK_NULL_HANDLE;
}
if (device != VK_NULL_HANDLE)
{
vkDestroyDevice(device, nullptr);
device = VK_NULL_HANDLE;
}
}
void Graphics::cleanupSwapChain()
{
if (colorImage)
{
cleanupFramebuffers(colorImageView, swapChainPixelFormat);
vkDestroyImageView(device, colorImageView, nullptr);
vmaDestroyImage(vmaAllocator, colorImage, colorImageAllocation);
}
if (depthImage)
{
cleanupFramebuffers(depthImageView, depthStencilPixelFormat);
vkDestroyImageView(device, depthImageView, nullptr);
vmaDestroyImage(vmaAllocator, depthImage, depthImageAllocation);
}
for (const auto &swapChainImageView : swapChainImageViews)
{
cleanupFramebuffers(swapChainImageView, swapChainPixelFormat);
vkDestroyImageView(device, swapChainImageView, nullptr);
}
swapChainImageViews.clear();
vkDestroySwapchainKHR(device, swapChain, nullptr);
swapChainImages.clear();
fakeBackbuffer.set(nullptr);
swapChain = VK_NULL_HANDLE;
}
void Graphics::recreateSwapChain()
{
vkDeviceWaitIdle(device);
cleanupSwapChain();
createSwapChain();
createImageViews();
createColorResources();
createDepthResources();
transitionColorDepthLayouts = true;
}
love::graphics::Graphics *createInstance()
{
love::graphics::Graphics *instance = nullptr;
try
{
instance = new Graphics();
}
catch (love::Exception &e)
{
if (isDebugEnabled())
printf("Cannot create Vulkan renderer: %s\n", e.what());
}
return instance;
}
} // vulkan
} // graphics
} // love
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