AuroraMiddleware/qt5base-lts
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
8c38b08343
qt5base-lts/examples/vulkan/hellovulkancubes/renderer.cpp
Laszlo Agocs 85f127cb04 Revise an incorrect QVulkanWindow doc note 
Applying the transformation in question has no effect on the winding
order. Rewrite that section.

While all the examples are correct, clarify the rules for the geometry
they use since the winding order varies. Fix up the triangle example code
to use front=CCW for clarity (even though it does not matter much since
culling is off there).

Change-Id: Icb968c76cc9fa918a5608d3c66b4fccd5668175e
Reviewed-by: Christian Stromme <christian.stromme@qt.io>
2018-09-06 09:17:53 +00:00

1049 lines
37 KiB
C++
Raw Blame History

/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "renderer.h"
#include <QVulkanFunctions>
#include <QtConcurrentRun>
#include <QTime>
static float quadVert[] = { // Y up, front = CW
-1, -1, 0,
-1, 1, 0,
1, -1, 0,
1, 1, 0
};
#define DBG Q_UNLIKELY(m_window->isDebugEnabled())
const int MAX_INSTANCES = 16384;
const VkDeviceSize PER_INSTANCE_DATA_SIZE = 6 * sizeof(float); // instTranslate, instDiffuseAdjust
static inline VkDeviceSize aligned(VkDeviceSize v, VkDeviceSize byteAlign)
{
return (v + byteAlign - 1) & ~(byteAlign - 1);
}
Renderer::Renderer(VulkanWindow *w, int initialCount)
: m_window(w),
// Have the light positioned just behind the default camera position, looking forward.
m_lightPos(0.0f, 0.0f, 25.0f),
m_cam(QVector3D(0.0f, 0.0f, 20.0f)), // starting camera position
m_instCount(initialCount)
{
qsrand(QTime(0, 0, 0).secsTo(QTime::currentTime()));
m_floorModel.translate(0, -5, 0);
m_floorModel.rotate(-90, 1, 0, 0);
m_floorModel.scale(20, 100, 1);
m_blockMesh.load(QStringLiteral(":/block.buf"));
m_logoMesh.load(QStringLiteral(":/qt_logo.buf"));
QObject::connect(&m_frameWatcher, &QFutureWatcherBase::finished, [this] {
if (m_framePending) {
m_framePending = false;
m_window->frameReady();
m_window->requestUpdate();
}
});
}
void Renderer::preInitResources()
{
const QVector<int> sampleCounts = m_window->supportedSampleCounts();
if (DBG)
qDebug() << "Supported sample counts:" << sampleCounts;
if (sampleCounts.contains(4)) {
if (DBG)
qDebug("Requesting 4x MSAA");
m_window->setSampleCount(4);
}
}
void Renderer::initResources()
{
if (DBG)
qDebug("Renderer init");
m_animating = true;
m_framePending = false;
QVulkanInstance *inst = m_window->vulkanInstance();
VkDevice dev = m_window->device();
const VkPhysicalDeviceLimits *pdevLimits = &m_window->physicalDeviceProperties()->limits;
const VkDeviceSize uniAlign = pdevLimits->minUniformBufferOffsetAlignment;
m_devFuncs = inst->deviceFunctions(dev);
// Note the std140 packing rules. A vec3 still has an alignment of 16,
// while a mat3 is like 3 * vec3.
m_itemMaterial.vertUniSize = aligned(2 * 64 + 48, uniAlign); // see color_phong.vert
m_itemMaterial.fragUniSize = aligned(6 * 16 + 12 + 2 * 4, uniAlign); // see color_phong.frag
if (!m_itemMaterial.vs.isValid())
m_itemMaterial.vs.load(inst, dev, QStringLiteral(":/color_phong_vert.spv"));
if (!m_itemMaterial.fs.isValid())
m_itemMaterial.fs.load(inst, dev, QStringLiteral(":/color_phong_frag.spv"));
if (!m_floorMaterial.vs.isValid())
m_floorMaterial.vs.load(inst, dev, QStringLiteral(":/color_vert.spv"));
if (!m_floorMaterial.fs.isValid())
m_floorMaterial.fs.load(inst, dev, QStringLiteral(":/color_frag.spv"));
m_pipelinesFuture = QtConcurrent::run(this, &Renderer::createPipelines);
}
void Renderer::createPipelines()
{
VkDevice dev = m_window->device();
VkPipelineCacheCreateInfo pipelineCacheInfo;
memset(&pipelineCacheInfo, 0, sizeof(pipelineCacheInfo));
pipelineCacheInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_CACHE_CREATE_INFO;
VkResult err = m_devFuncs->vkCreatePipelineCache(dev, &pipelineCacheInfo, nullptr, &m_pipelineCache);
if (err != VK_SUCCESS)
qFatal("Failed to create pipeline cache: %d", err);
createItemPipeline();
createFloorPipeline();
}
void Renderer::createItemPipeline()
{
VkDevice dev = m_window->device();
// Vertex layout.
VkVertexInputBindingDescription vertexBindingDesc[] = {
{
0, // binding
8 * sizeof(float),
VK_VERTEX_INPUT_RATE_VERTEX
},
{
1,
6 * sizeof(float),
VK_VERTEX_INPUT_RATE_INSTANCE
}
};
VkVertexInputAttributeDescription vertexAttrDesc[] = {
{ // position
0, // location
0, // binding
VK_FORMAT_R32G32B32_SFLOAT,
0 // offset
},
{ // normal
1,
0,
VK_FORMAT_R32G32B32_SFLOAT,
5 * sizeof(float)
},
{ // instTranslate
2,
1,
VK_FORMAT_R32G32B32_SFLOAT,
0
},
{ // instDiffuseAdjust
3,
1,
VK_FORMAT_R32G32B32_SFLOAT,
3 * sizeof(float)
}
};
VkPipelineVertexInputStateCreateInfo vertexInputInfo;
vertexInputInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
vertexInputInfo.pNext = nullptr;
vertexInputInfo.flags = 0;
vertexInputInfo.vertexBindingDescriptionCount = sizeof(vertexBindingDesc) / sizeof(vertexBindingDesc[0]);
vertexInputInfo.pVertexBindingDescriptions = vertexBindingDesc;
vertexInputInfo.vertexAttributeDescriptionCount = sizeof(vertexAttrDesc) / sizeof(vertexAttrDesc[0]);
vertexInputInfo.pVertexAttributeDescriptions = vertexAttrDesc;
// Descriptor set layout.
VkDescriptorPoolSize descPoolSizes[] = {
{ VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC, 2 }
};
VkDescriptorPoolCreateInfo descPoolInfo;
memset(&descPoolInfo, 0, sizeof(descPoolInfo));
descPoolInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
descPoolInfo.maxSets = 1; // a single set is enough due to the dynamic uniform buffer
descPoolInfo.poolSizeCount = sizeof(descPoolSizes) / sizeof(descPoolSizes[0]);
descPoolInfo.pPoolSizes = descPoolSizes;
VkResult err = m_devFuncs->vkCreateDescriptorPool(dev, &descPoolInfo, nullptr, &m_itemMaterial.descPool);
if (err != VK_SUCCESS)
qFatal("Failed to create descriptor pool: %d", err);
VkDescriptorSetLayoutBinding layoutBindings[] =
{
{
0, // binding
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC,
1, // descriptorCount
VK_SHADER_STAGE_VERTEX_BIT,
nullptr
},
{
1,
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC,
1,
VK_SHADER_STAGE_FRAGMENT_BIT,
nullptr
}
};
VkDescriptorSetLayoutCreateInfo descLayoutInfo = {
VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO,
nullptr,
0,
sizeof(layoutBindings) / sizeof(layoutBindings[0]),
layoutBindings
};
err = m_devFuncs->vkCreateDescriptorSetLayout(dev, &descLayoutInfo, nullptr, &m_itemMaterial.descSetLayout);
if (err != VK_SUCCESS)
qFatal("Failed to create descriptor set layout: %d", err);
VkDescriptorSetAllocateInfo descSetAllocInfo = {
VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO,
nullptr,
m_itemMaterial.descPool,
1,
&m_itemMaterial.descSetLayout
};
err = m_devFuncs->vkAllocateDescriptorSets(dev, &descSetAllocInfo, &m_itemMaterial.descSet);
if (err != VK_SUCCESS)
qFatal("Failed to allocate descriptor set: %d", err);
// Graphics pipeline.
VkPipelineLayoutCreateInfo pipelineLayoutInfo;
memset(&pipelineLayoutInfo, 0, sizeof(pipelineLayoutInfo));
pipelineLayoutInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pipelineLayoutInfo.setLayoutCount = 1;
pipelineLayoutInfo.pSetLayouts = &m_itemMaterial.descSetLayout;
err = m_devFuncs->vkCreatePipelineLayout(dev, &pipelineLayoutInfo, nullptr, &m_itemMaterial.pipelineLayout);
if (err != VK_SUCCESS)
qFatal("Failed to create pipeline layout: %d", err);
VkGraphicsPipelineCreateInfo pipelineInfo;
memset(&pipelineInfo, 0, sizeof(pipelineInfo));
pipelineInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
VkPipelineShaderStageCreateInfo shaderStages[2] = {
{
VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
nullptr,
0,
VK_SHADER_STAGE_VERTEX_BIT,
m_itemMaterial.vs.data()->shaderModule,
"main",
nullptr
},
{
VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
nullptr,
0,
VK_SHADER_STAGE_FRAGMENT_BIT,
m_itemMaterial.fs.data()->shaderModule,
"main",
nullptr
}
};
pipelineInfo.stageCount = 2;
pipelineInfo.pStages = shaderStages;
pipelineInfo.pVertexInputState = &vertexInputInfo;
VkPipelineInputAssemblyStateCreateInfo ia;
memset(&ia, 0, sizeof(ia));
ia.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
ia.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
pipelineInfo.pInputAssemblyState = &ia;
VkPipelineViewportStateCreateInfo vp;
memset(&vp, 0, sizeof(vp));
vp.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
vp.viewportCount = 1;
vp.scissorCount = 1;
pipelineInfo.pViewportState = &vp;
VkPipelineRasterizationStateCreateInfo rs;
memset(&rs, 0, sizeof(rs));
rs.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
rs.polygonMode = VK_POLYGON_MODE_FILL;
rs.cullMode = VK_CULL_MODE_BACK_BIT;
rs.frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE;
rs.lineWidth = 1.0f;
pipelineInfo.pRasterizationState = &rs;
VkPipelineMultisampleStateCreateInfo ms;
memset(&ms, 0, sizeof(ms));
ms.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
ms.rasterizationSamples = m_window->sampleCountFlagBits();
pipelineInfo.pMultisampleState = &ms;
VkPipelineDepthStencilStateCreateInfo ds;
memset(&ds, 0, sizeof(ds));
ds.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO;
ds.depthTestEnable = VK_TRUE;
ds.depthWriteEnable = VK_TRUE;
ds.depthCompareOp = VK_COMPARE_OP_LESS_OR_EQUAL;
pipelineInfo.pDepthStencilState = &ds;
VkPipelineColorBlendStateCreateInfo cb;
memset(&cb, 0, sizeof(cb));
cb.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
VkPipelineColorBlendAttachmentState att;
memset(&att, 0, sizeof(att));
att.colorWriteMask = 0xF;
cb.attachmentCount = 1;
cb.pAttachments = &att;
pipelineInfo.pColorBlendState = &cb;
VkDynamicState dynEnable[] = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR };
VkPipelineDynamicStateCreateInfo dyn;
memset(&dyn, 0, sizeof(dyn));
dyn.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
dyn.dynamicStateCount = sizeof(dynEnable) / sizeof(VkDynamicState);
dyn.pDynamicStates = dynEnable;
pipelineInfo.pDynamicState = &dyn;
pipelineInfo.layout = m_itemMaterial.pipelineLayout;
pipelineInfo.renderPass = m_window->defaultRenderPass();
err = m_devFuncs->vkCreateGraphicsPipelines(dev, m_pipelineCache, 1, &pipelineInfo, nullptr, &m_itemMaterial.pipeline);
if (err != VK_SUCCESS)
qFatal("Failed to create graphics pipeline: %d", err);
}
void Renderer::createFloorPipeline()
{
VkDevice dev = m_window->device();
// Vertex layout.
VkVertexInputBindingDescription vertexBindingDesc = {
0, // binding
3 * sizeof(float),
VK_VERTEX_INPUT_RATE_VERTEX
};
VkVertexInputAttributeDescription vertexAttrDesc[] = {
{ // position
0, // location
0, // binding
VK_FORMAT_R32G32B32_SFLOAT,
0 // offset
},
};
VkPipelineVertexInputStateCreateInfo vertexInputInfo;
vertexInputInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
vertexInputInfo.pNext = nullptr;
vertexInputInfo.flags = 0;
vertexInputInfo.vertexBindingDescriptionCount = 1;
vertexInputInfo.pVertexBindingDescriptions = &vertexBindingDesc;
vertexInputInfo.vertexAttributeDescriptionCount = sizeof(vertexAttrDesc) / sizeof(vertexAttrDesc[0]);
vertexInputInfo.pVertexAttributeDescriptions = vertexAttrDesc;
// Do not bother with uniform buffers and descriptors, all the data fits
// into the spec mandated minimum of 128 bytes for push constants.
VkPushConstantRange pcr[] = {
// mvp
{
VK_SHADER_STAGE_VERTEX_BIT,
0,
64
},
// color
{
VK_SHADER_STAGE_FRAGMENT_BIT,
64,
12
}
};
VkPipelineLayoutCreateInfo pipelineLayoutInfo;
memset(&pipelineLayoutInfo, 0, sizeof(pipelineLayoutInfo));
pipelineLayoutInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pipelineLayoutInfo.pushConstantRangeCount = sizeof(pcr) / sizeof(pcr[0]);
pipelineLayoutInfo.pPushConstantRanges = pcr;
VkResult err = m_devFuncs->vkCreatePipelineLayout(dev, &pipelineLayoutInfo, nullptr, &m_floorMaterial.pipelineLayout);
if (err != VK_SUCCESS)
qFatal("Failed to create pipeline layout: %d", err);
VkGraphicsPipelineCreateInfo pipelineInfo;
memset(&pipelineInfo, 0, sizeof(pipelineInfo));
pipelineInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
VkPipelineShaderStageCreateInfo shaderStages[2] = {
{
VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
nullptr,
0,
VK_SHADER_STAGE_VERTEX_BIT,
m_floorMaterial.vs.data()->shaderModule,
"main",
nullptr
},
{
VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
nullptr,
0,
VK_SHADER_STAGE_FRAGMENT_BIT,
m_floorMaterial.fs.data()->shaderModule,
"main",
nullptr
}
};
pipelineInfo.stageCount = 2;
pipelineInfo.pStages = shaderStages;
pipelineInfo.pVertexInputState = &vertexInputInfo;
VkPipelineInputAssemblyStateCreateInfo ia;
memset(&ia, 0, sizeof(ia));
ia.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
ia.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP;
pipelineInfo.pInputAssemblyState = &ia;
VkPipelineViewportStateCreateInfo vp;
memset(&vp, 0, sizeof(vp));
vp.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
vp.viewportCount = 1;
vp.scissorCount = 1;
pipelineInfo.pViewportState = &vp;
VkPipelineRasterizationStateCreateInfo rs;
memset(&rs, 0, sizeof(rs));
rs.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
rs.polygonMode = VK_POLYGON_MODE_FILL;
rs.cullMode = VK_CULL_MODE_BACK_BIT;
rs.frontFace = VK_FRONT_FACE_CLOCKWISE;
rs.lineWidth = 1.0f;
pipelineInfo.pRasterizationState = &rs;
VkPipelineMultisampleStateCreateInfo ms;
memset(&ms, 0, sizeof(ms));
ms.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
ms.rasterizationSamples = m_window->sampleCountFlagBits();
pipelineInfo.pMultisampleState = &ms;
VkPipelineDepthStencilStateCreateInfo ds;
memset(&ds, 0, sizeof(ds));
ds.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO;
ds.depthTestEnable = VK_TRUE;
ds.depthWriteEnable = VK_TRUE;
ds.depthCompareOp = VK_COMPARE_OP_LESS_OR_EQUAL;
pipelineInfo.pDepthStencilState = &ds;
VkPipelineColorBlendStateCreateInfo cb;
memset(&cb, 0, sizeof(cb));
cb.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
VkPipelineColorBlendAttachmentState att;
memset(&att, 0, sizeof(att));
att.colorWriteMask = 0xF;
cb.attachmentCount = 1;
cb.pAttachments = &att;
pipelineInfo.pColorBlendState = &cb;
VkDynamicState dynEnable[] = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR };
VkPipelineDynamicStateCreateInfo dyn;
memset(&dyn, 0, sizeof(dyn));
dyn.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
dyn.dynamicStateCount = sizeof(dynEnable) / sizeof(VkDynamicState);
dyn.pDynamicStates = dynEnable;
pipelineInfo.pDynamicState = &dyn;
pipelineInfo.layout = m_floorMaterial.pipelineLayout;
pipelineInfo.renderPass = m_window->defaultRenderPass();
err = m_devFuncs->vkCreateGraphicsPipelines(dev, m_pipelineCache, 1, &pipelineInfo, nullptr, &m_floorMaterial.pipeline);
if (err != VK_SUCCESS)
qFatal("Failed to create graphics pipeline: %d", err);
}
void Renderer::initSwapChainResources()
{
m_proj = m_window->clipCorrectionMatrix();
const QSize sz = m_window->swapChainImageSize();
m_proj.perspective(45.0f, sz.width() / (float) sz.height(), 0.01f, 1000.0f);
markViewProjDirty();
}
void Renderer::releaseSwapChainResources()
{
// It is important to finish the pending frame right here since this is the
// last opportunity to act with all resources intact.
m_frameWatcher.waitForFinished();
// Cannot count on the finished() signal being emitted before returning
// from here.
if (m_framePending) {
m_framePending = false;
m_window->frameReady();
}
}
void Renderer::releaseResources()
{
if (DBG)
qDebug("Renderer release");
m_pipelinesFuture.waitForFinished();
VkDevice dev = m_window->device();
if (m_itemMaterial.descSetLayout) {
m_devFuncs->vkDestroyDescriptorSetLayout(dev, m_itemMaterial.descSetLayout, nullptr);
m_itemMaterial.descSetLayout = VK_NULL_HANDLE;
}
if (m_itemMaterial.descPool) {
m_devFuncs->vkDestroyDescriptorPool(dev, m_itemMaterial.descPool, nullptr);
m_itemMaterial.descPool = VK_NULL_HANDLE;
}
if (m_itemMaterial.pipeline) {
m_devFuncs->vkDestroyPipeline(dev, m_itemMaterial.pipeline, nullptr);
m_itemMaterial.pipeline = VK_NULL_HANDLE;
}
if (m_itemMaterial.pipelineLayout) {
m_devFuncs->vkDestroyPipelineLayout(dev, m_itemMaterial.pipelineLayout, nullptr);
m_itemMaterial.pipelineLayout = VK_NULL_HANDLE;
}
if (m_floorMaterial.pipeline) {
m_devFuncs->vkDestroyPipeline(dev, m_floorMaterial.pipeline, nullptr);
m_floorMaterial.pipeline = VK_NULL_HANDLE;
}
if (m_floorMaterial.pipelineLayout) {
m_devFuncs->vkDestroyPipelineLayout(dev, m_floorMaterial.pipelineLayout, nullptr);
m_floorMaterial.pipelineLayout = VK_NULL_HANDLE;
}
if (m_pipelineCache) {
m_devFuncs->vkDestroyPipelineCache(dev, m_pipelineCache, nullptr);
m_pipelineCache = VK_NULL_HANDLE;
}
if (m_blockVertexBuf) {
m_devFuncs->vkDestroyBuffer(dev, m_blockVertexBuf, nullptr);
m_blockVertexBuf = VK_NULL_HANDLE;
}
if (m_logoVertexBuf) {
m_devFuncs->vkDestroyBuffer(dev, m_logoVertexBuf, nullptr);
m_logoVertexBuf = VK_NULL_HANDLE;
}
if (m_floorVertexBuf) {
m_devFuncs->vkDestroyBuffer(dev, m_floorVertexBuf, nullptr);
m_floorVertexBuf = VK_NULL_HANDLE;
}
if (m_uniBuf) {
m_devFuncs->vkDestroyBuffer(dev, m_uniBuf, nullptr);
m_uniBuf = VK_NULL_HANDLE;
}
if (m_bufMem) {
m_devFuncs->vkFreeMemory(dev, m_bufMem, nullptr);
m_bufMem = VK_NULL_HANDLE;
}
if (m_instBuf) {
m_devFuncs->vkDestroyBuffer(dev, m_instBuf, nullptr);
m_instBuf = VK_NULL_HANDLE;
}
if (m_instBufMem) {
m_devFuncs->vkFreeMemory(dev, m_instBufMem, nullptr);
m_instBufMem = VK_NULL_HANDLE;
}
if (m_itemMaterial.vs.isValid()) {
m_devFuncs->vkDestroyShaderModule(dev, m_itemMaterial.vs.data()->shaderModule, nullptr);
m_itemMaterial.vs.reset();
}
if (m_itemMaterial.fs.isValid()) {
m_devFuncs->vkDestroyShaderModule(dev, m_itemMaterial.fs.data()->shaderModule, nullptr);
m_itemMaterial.fs.reset();
}
if (m_floorMaterial.vs.isValid()) {
m_devFuncs->vkDestroyShaderModule(dev, m_floorMaterial.vs.data()->shaderModule, nullptr);
m_floorMaterial.vs.reset();
}
if (m_floorMaterial.fs.isValid()) {
m_devFuncs->vkDestroyShaderModule(dev, m_floorMaterial.fs.data()->shaderModule, nullptr);
m_floorMaterial.fs.reset();
}
}
void Renderer::ensureBuffers()
{
if (m_blockVertexBuf)
return;
VkDevice dev = m_window->device();
const int concurrentFrameCount = m_window->concurrentFrameCount();
// Vertex buffer for the block.
VkBufferCreateInfo bufInfo;
memset(&bufInfo, 0, sizeof(bufInfo));
bufInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
const int blockMeshByteCount = m_blockMesh.data()->vertexCount * 8 * sizeof(float);
bufInfo.size = blockMeshByteCount;
bufInfo.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT;
VkResult err = m_devFuncs->vkCreateBuffer(dev, &bufInfo, nullptr, &m_blockVertexBuf);
if (err != VK_SUCCESS)
qFatal("Failed to create vertex buffer: %d", err);
VkMemoryRequirements blockVertMemReq;
m_devFuncs->vkGetBufferMemoryRequirements(dev, m_blockVertexBuf, &blockVertMemReq);
// Vertex buffer for the logo.
const int logoMeshByteCount = m_logoMesh.data()->vertexCount * 8 * sizeof(float);
bufInfo.size = logoMeshByteCount;
bufInfo.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT;
err = m_devFuncs->vkCreateBuffer(dev, &bufInfo, nullptr, &m_logoVertexBuf);
if (err != VK_SUCCESS)
qFatal("Failed to create vertex buffer: %d", err);
VkMemoryRequirements logoVertMemReq;
m_devFuncs->vkGetBufferMemoryRequirements(dev, m_logoVertexBuf, &logoVertMemReq);
// Vertex buffer for the floor.
bufInfo.size = sizeof(quadVert);
err = m_devFuncs->vkCreateBuffer(dev, &bufInfo, nullptr, &m_floorVertexBuf);
if (err != VK_SUCCESS)
qFatal("Failed to create vertex buffer: %d", err);
VkMemoryRequirements floorVertMemReq;
m_devFuncs->vkGetBufferMemoryRequirements(dev, m_floorVertexBuf, &floorVertMemReq);
// Uniform buffer. Instead of using multiple descriptor sets, we take a
// different approach: have a single dynamic uniform buffer and specify the
// active-frame-specific offset at the time of binding the descriptor set.
bufInfo.size = (m_itemMaterial.vertUniSize + m_itemMaterial.fragUniSize) * concurrentFrameCount;
bufInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT;
err = m_devFuncs->vkCreateBuffer(dev, &bufInfo, nullptr, &m_uniBuf);
if (err != VK_SUCCESS)
qFatal("Failed to create uniform buffer: %d", err);
VkMemoryRequirements uniMemReq;
m_devFuncs->vkGetBufferMemoryRequirements(dev, m_uniBuf, &uniMemReq);
// Allocate memory for everything at once.
VkDeviceSize logoVertStartOffset = aligned(0 + blockVertMemReq.size, logoVertMemReq.alignment);
VkDeviceSize floorVertStartOffset = aligned(logoVertStartOffset + logoVertMemReq.size, floorVertMemReq.alignment);
m_itemMaterial.uniMemStartOffset = aligned(floorVertStartOffset + floorVertMemReq.size, uniMemReq.alignment);
VkMemoryAllocateInfo memAllocInfo = {
VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
nullptr,
m_itemMaterial.uniMemStartOffset + uniMemReq.size,
m_window->hostVisibleMemoryIndex()
};
err = m_devFuncs->vkAllocateMemory(dev, &memAllocInfo, nullptr, &m_bufMem);
if (err != VK_SUCCESS)
qFatal("Failed to allocate memory: %d", err);
err = m_devFuncs->vkBindBufferMemory(dev, m_blockVertexBuf, m_bufMem, 0);
if (err != VK_SUCCESS)
qFatal("Failed to bind vertex buffer memory: %d", err);
err = m_devFuncs->vkBindBufferMemory(dev, m_logoVertexBuf, m_bufMem, logoVertStartOffset);
if (err != VK_SUCCESS)
qFatal("Failed to bind vertex buffer memory: %d", err);
err = m_devFuncs->vkBindBufferMemory(dev, m_floorVertexBuf, m_bufMem, floorVertStartOffset);
if (err != VK_SUCCESS)
qFatal("Failed to bind vertex buffer memory: %d", err);
err = m_devFuncs->vkBindBufferMemory(dev, m_uniBuf, m_bufMem, m_itemMaterial.uniMemStartOffset);
if (err != VK_SUCCESS)
qFatal("Failed to bind uniform buffer memory: %d", err);
// Copy vertex data.
quint8 *p;
err = m_devFuncs->vkMapMemory(dev, m_bufMem, 0, m_itemMaterial.uniMemStartOffset, 0, reinterpret_cast<void **>(&p));
if (err != VK_SUCCESS)
qFatal("Failed to map memory: %d", err);
memcpy(p, m_blockMesh.data()->geom.constData(), blockMeshByteCount);
memcpy(p + logoVertStartOffset, m_logoMesh.data()->geom.constData(), logoMeshByteCount);
memcpy(p + floorVertStartOffset, quadVert, sizeof(quadVert));
m_devFuncs->vkUnmapMemory(dev, m_bufMem);
// Write descriptors for the uniform buffers in the vertex and fragment shaders.
VkDescriptorBufferInfo vertUni = { m_uniBuf, 0, m_itemMaterial.vertUniSize };
VkDescriptorBufferInfo fragUni = { m_uniBuf, m_itemMaterial.vertUniSize, m_itemMaterial.fragUniSize };
VkWriteDescriptorSet descWrite[2];
memset(descWrite, 0, sizeof(descWrite));
descWrite[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descWrite[0].dstSet = m_itemMaterial.descSet;
descWrite[0].dstBinding = 0;
descWrite[0].descriptorCount = 1;
descWrite[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC;
descWrite[0].pBufferInfo = &vertUni;
descWrite[1].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descWrite[1].dstSet = m_itemMaterial.descSet;
descWrite[1].dstBinding = 1;
descWrite[1].descriptorCount = 1;
descWrite[1].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC;
descWrite[1].pBufferInfo = &fragUni;
m_devFuncs->vkUpdateDescriptorSets(dev, 2, descWrite, 0, nullptr);
}
void Renderer::ensureInstanceBuffer()
{
if (m_instCount == m_preparedInstCount && m_instBuf)
return;
Q_ASSERT(m_instCount <= MAX_INSTANCES);
VkDevice dev = m_window->device();
// allocate only once, for the maximum instance count
if (!m_instBuf) {
VkBufferCreateInfo bufInfo;
memset(&bufInfo, 0, sizeof(bufInfo));
bufInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
bufInfo.size = MAX_INSTANCES * PER_INSTANCE_DATA_SIZE;
bufInfo.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT;
// Keep a copy of the data since we may lose all graphics resources on
// unexpose, and reinitializing to new random positions afterwards
// would not be nice.
m_instData.resize(bufInfo.size);
VkResult err = m_devFuncs->vkCreateBuffer(dev, &bufInfo, nullptr, &m_instBuf);
if (err != VK_SUCCESS)
qFatal("Failed to create instance buffer: %d", err);
VkMemoryRequirements memReq;
m_devFuncs->vkGetBufferMemoryRequirements(dev, m_instBuf, &memReq);
if (DBG)
qDebug("Allocating %u bytes for instance data", uint32_t(memReq.size));
VkMemoryAllocateInfo memAllocInfo = {
VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
nullptr,
memReq.size,
m_window->hostVisibleMemoryIndex()
};
err = m_devFuncs->vkAllocateMemory(dev, &memAllocInfo, nullptr, &m_instBufMem);
if (err != VK_SUCCESS)
qFatal("Failed to allocate memory: %d", err);
err = m_devFuncs->vkBindBufferMemory(dev, m_instBuf, m_instBufMem, 0);
if (err != VK_SUCCESS)
qFatal("Failed to bind instance buffer memory: %d", err);
}
if (m_instCount != m_preparedInstCount) {
if (DBG)
qDebug("Preparing instances %d..%d", m_preparedInstCount, m_instCount - 1);
char *p = m_instData.data();
p += m_preparedInstCount * PER_INSTANCE_DATA_SIZE;
auto gen = [](float a, float b) { return float((qrand() % int(b - a + 1)) + a); };
for (int i = m_preparedInstCount; i < m_instCount; ++i) {
// Apply a random translation to each instance of the mesh.
float t[] = { gen(-5, 5), gen(-4, 6), gen(-30, 5) };
memcpy(p, t, 12);
// Apply a random adjustment to the diffuse color for each instance. (default is 0.7)
float d[] = { gen(-6, 3) / 10.0f, gen(-6, 3) / 10.0f, gen(-6, 3) / 10.0f };
memcpy(p + 12, d, 12);
p += PER_INSTANCE_DATA_SIZE;
}
m_preparedInstCount = m_instCount;
}
quint8 *p;
VkResult err = m_devFuncs->vkMapMemory(dev, m_instBufMem, 0, m_instCount * PER_INSTANCE_DATA_SIZE, 0,
reinterpret_cast<void **>(&p));
if (err != VK_SUCCESS)
qFatal("Failed to map memory: %d", err);
memcpy(p, m_instData.constData(), m_instData.size());
m_devFuncs->vkUnmapMemory(dev, m_instBufMem);
}
void Renderer::getMatrices(QMatrix4x4 *vp, QMatrix4x4 *model, QMatrix3x3 *modelNormal, QVector3D *eyePos)
{
model->setToIdentity();
if (m_useLogo)
model->rotate(90, 1, 0, 0);
model->rotate(m_rotation, 1, 1, 0);
*modelNormal = model->normalMatrix();
QMatrix4x4 view = m_cam.viewMatrix();
*vp = m_proj * view;
*eyePos = view.inverted().column(3).toVector3D();
}
void Renderer::writeFragUni(quint8 *p, const QVector3D &eyePos)
{
float ECCameraPosition[] = { eyePos.x(), eyePos.y(), eyePos.z() };
memcpy(p, ECCameraPosition, 12);
p += 16;
// Material
float ka[] = { 0.05f, 0.05f, 0.05f };
memcpy(p, ka, 12);
p += 16;
float kd[] = { 0.7f, 0.7f, 0.7f };
memcpy(p, kd, 12);
p += 16;
float ks[] = { 0.66f, 0.66f, 0.66f };
memcpy(p, ks, 12);
p += 16;
// Light parameters
float ECLightPosition[] = { m_lightPos.x(), m_lightPos.y(), m_lightPos.z() };
memcpy(p, ECLightPosition, 12);
p += 16;
float att[] = { 1, 0, 0 };
memcpy(p, att, 12);
p += 16;
float color[] = { 1.0f, 1.0f, 1.0f };
memcpy(p, color, 12);
p += 12; // next we have two floats which have an alignment of 4, hence 12 only
float intensity = 0.8f;
memcpy(p, &intensity, 4);
p += 4;
float specularExp = 150.0f;
memcpy(p, &specularExp, 4);
p += 4;
}
void Renderer::startNextFrame()
{
// For demonstration purposes offload the command buffer generation onto a
// worker thread and continue with the frame submission only when it has
// finished.
Q_ASSERT(!m_framePending);
m_framePending = true;
QFuture<void> future = QtConcurrent::run(this, &Renderer::buildFrame);
m_frameWatcher.setFuture(future);
}
void Renderer::buildFrame()
{
QMutexLocker locker(&m_guiMutex);
ensureBuffers();
ensureInstanceBuffer();
m_pipelinesFuture.waitForFinished();
VkCommandBuffer cb = m_window->currentCommandBuffer();
const QSize sz = m_window->swapChainImageSize();
VkClearColorValue clearColor = {{ 0.67f, 0.84f, 0.9f, 1.0f }};
VkClearDepthStencilValue clearDS = { 1, 0 };
VkClearValue clearValues[3];
memset(clearValues, 0, sizeof(clearValues));
clearValues[0].color = clearValues[2].color = clearColor;
clearValues[1].depthStencil = clearDS;
VkRenderPassBeginInfo rpBeginInfo;
memset(&rpBeginInfo, 0, sizeof(rpBeginInfo));
rpBeginInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
rpBeginInfo.renderPass = m_window->defaultRenderPass();
rpBeginInfo.framebuffer = m_window->currentFramebuffer();
rpBeginInfo.renderArea.extent.width = sz.width();
rpBeginInfo.renderArea.extent.height = sz.height();
rpBeginInfo.clearValueCount = m_window->sampleCountFlagBits() > VK_SAMPLE_COUNT_1_BIT ? 3 : 2;
rpBeginInfo.pClearValues = clearValues;
VkCommandBuffer cmdBuf = m_window->currentCommandBuffer();
m_devFuncs->vkCmdBeginRenderPass(cmdBuf, &rpBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
VkViewport viewport = {
0, 0,
float(sz.width()), float(sz.height()),
0, 1
};
m_devFuncs->vkCmdSetViewport(cb, 0, 1, &viewport);
VkRect2D scissor = {
{ 0, 0 },
{ uint32_t(sz.width()), uint32_t(sz.height()) }
};
m_devFuncs->vkCmdSetScissor(cb, 0, 1, &scissor);
buildDrawCallsForFloor();
buildDrawCallsForItems();
m_devFuncs->vkCmdEndRenderPass(cmdBuf);
}
void Renderer::buildDrawCallsForItems()
{
VkDevice dev = m_window->device();
VkCommandBuffer cb = m_window->currentCommandBuffer();
m_devFuncs->vkCmdBindPipeline(cb, VK_PIPELINE_BIND_POINT_GRAPHICS, m_itemMaterial.pipeline);
VkDeviceSize vbOffset = 0;
m_devFuncs->vkCmdBindVertexBuffers(cb, 0, 1, m_useLogo ? &m_logoVertexBuf : &m_blockVertexBuf, &vbOffset);
m_devFuncs->vkCmdBindVertexBuffers(cb, 1, 1, &m_instBuf, &vbOffset);
// Now provide offsets so that the two dynamic buffers point to the
// beginning of the vertex and fragment uniform data for the current frame.
uint32_t frameUniOffset = m_window->currentFrame() * (m_itemMaterial.vertUniSize + m_itemMaterial.fragUniSize);
uint32_t frameUniOffsets[] = { frameUniOffset, frameUniOffset };
m_devFuncs->vkCmdBindDescriptorSets(cb, VK_PIPELINE_BIND_POINT_GRAPHICS, m_itemMaterial.pipelineLayout, 0, 1,
&m_itemMaterial.descSet, 2, frameUniOffsets);
if (m_animating)
m_rotation += 0.5;
if (m_animating || m_vpDirty) {
if (m_vpDirty)
--m_vpDirty;
QMatrix4x4 vp, model;
QMatrix3x3 modelNormal;
QVector3D eyePos;
getMatrices(&vp, &model, &modelNormal, &eyePos);
// Map the uniform data for the current frame, ignore the geometry data at
// the beginning and the uniforms for other frames.
quint8 *p;
VkResult err = m_devFuncs->vkMapMemory(dev, m_bufMem,
m_itemMaterial.uniMemStartOffset + frameUniOffset,
m_itemMaterial.vertUniSize + m_itemMaterial.fragUniSize,
0, reinterpret_cast<void **>(&p));
if (err != VK_SUCCESS)
qFatal("Failed to map memory: %d", err);
// Vertex shader uniforms
memcpy(p, vp.constData(), 64);
memcpy(p + 64, model.constData(), 64);
const float *mnp = modelNormal.constData();
memcpy(p + 128, mnp, 12);
memcpy(p + 128 + 16, mnp + 3, 12);
memcpy(p + 128 + 32, mnp + 6, 12);
// Fragment shader uniforms
p += m_itemMaterial.vertUniSize;
writeFragUni(p, eyePos);
m_devFuncs->vkUnmapMemory(dev, m_bufMem);
}
m_devFuncs->vkCmdDraw(cb, (m_useLogo ? m_logoMesh.data() : m_blockMesh.data())->vertexCount, m_instCount, 0, 0);
}
void Renderer::buildDrawCallsForFloor()
{
VkCommandBuffer cb = m_window->currentCommandBuffer();
m_devFuncs->vkCmdBindPipeline(cb, VK_PIPELINE_BIND_POINT_GRAPHICS, m_floorMaterial.pipeline);
VkDeviceSize vbOffset = 0;
m_devFuncs->vkCmdBindVertexBuffers(cb, 0, 1, &m_floorVertexBuf, &vbOffset);
QMatrix4x4 mvp = m_proj * m_cam.viewMatrix() * m_floorModel;
m_devFuncs->vkCmdPushConstants(cb, m_floorMaterial.pipelineLayout, VK_SHADER_STAGE_VERTEX_BIT, 0, 64, mvp.constData());
float color[] = { 0.67f, 1.0f, 0.2f };
m_devFuncs->vkCmdPushConstants(cb, m_floorMaterial.pipelineLayout, VK_SHADER_STAGE_FRAGMENT_BIT, 64, 12, color);
m_devFuncs->vkCmdDraw(cb, 4, 1, 0, 0);
}
void Renderer::addNew()
{
QMutexLocker locker(&m_guiMutex);
m_instCount = qMin(m_instCount + 16, MAX_INSTANCES);
}
void Renderer::yaw(float degrees)
{
QMutexLocker locker(&m_guiMutex);
m_cam.yaw(degrees);
markViewProjDirty();
}
void Renderer::pitch(float degrees)
{
QMutexLocker locker(&m_guiMutex);
m_cam.pitch(degrees);
markViewProjDirty();
}
void Renderer::walk(float amount)
{
QMutexLocker locker(&m_guiMutex);
m_cam.walk(amount);
markViewProjDirty();
}
void Renderer::strafe(float amount)
{
QMutexLocker locker(&m_guiMutex);
m_cam.strafe(amount);
markViewProjDirty();
}
void Renderer::setUseLogo(bool b)
{
QMutexLocker locker(&m_guiMutex);
m_useLogo = b;
if (!m_animating)
m_window->requestUpdate();
}
Reference in New Issue View Git Blame Copy Permalink