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Framebuffers creation and commandbuffers

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Nigel Barink
2023-05-06 15:03:11 +02:00
parent 42ed83316e
commit f551ccc31e
1 changed files with 137 additions and 29 deletions
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166
Hello_triangle/main.cpp
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@@ -62,6 +62,11 @@ const std::vector<const char*> deviceExtensions = {
std::vector<VkImageView> swapChainImageViews;
VkRenderPass renderPass;
VkPipelineLayout pipelineLayout;
VkPipeline graphicsPipeline;
std::vector<VkFramebuffer> swapchainFrameBuffers;
VkCommandPool commandPool;
VkCommandBuffer commandBuffer;
struct SwapChainSupportDetails {
@@ -90,6 +95,68 @@ const std::vector<const char*> deviceExtensions = {
createImageViews();
createRenderPass();
createGraphicsPipeline();
createFramebuffers();
createCommandPool();
createCommandBuffer();
}
void recordCommandBuffer(VkCommandBuffer commandBuffer, uint32_t imageIndex) {
VkCommandBufferBeginInfo beginInfo{};
beginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
if (vkBeginCommandBuffer(commandBuffer, &beginInfo) != VK_SUCCESS) {
throw std::runtime_error("failed to begin recording command buffer!");
}
VkRenderPassBeginInfo renderPassInfo{};
renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
renderPassInfo.renderPass = renderPass;
renderPassInfo.framebuffer = swapchainFrameBuffers[imageIndex];
renderPassInfo.renderArea.offset = { 0,0 };
renderPassInfo.renderArea.extent = swapChainExtent;
VkClearValue clearColor = { {{0.0f, 0.0f, 0.0f, 1.0f}} };
renderPassInfo.clearValueCount = 1;
renderPassInfo.pClearValues = &clearColor;
vkCmdBeginRenderPass(commandBuffer, &renderPassInfo, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, graphicsPipeline);
VkViewport viewport{};
viewport.x = 0.0f;
viewport.y = 0.0f;
viewport.width = static_cast<float>(swapChainExtent.width);
viewport.height = static_cast<float>(swapChainExtent.height);
viewport.minDepth = 0.0f;
viewport.maxDepth = 1.0f;
vkCmdSetViewport(commandBuffer, 0, 1, &viewport);
VkRect2D scissor{};
scissor.offset = { 0,0 };
scissor.extent = swapChainExtent;
vkCmdSetScissor(commandBuffer, 0, 1, &scissor);
vkCmdDraw(commandBuffer, 3, 1, 0, 0);
vkCmdEndRenderPass(commandBuffer);
if (vkEndCommandBuffer(commandBuffer) != VK_SUCCESS) {
throw std::runtime_error("failed to record command buffer!");
}
}
void createCommandBuffer() {
VkCommandBufferAllocateInfo allocInfo{};
allocInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
allocInfo.commandPool = commandPool;
allocInfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
allocInfo.commandBufferCount = 1;
if (vkAllocateCommandBuffers(device, &allocInfo, &commandBuffer) != VK_SUCCESS) {
throw std::runtime_error("failed to allocate command buffers!");
}
}
void createSurface() {
@@ -305,34 +372,6 @@ const std::vector<const char*> deviceExtensions = {
inputAssembly.primitiveRestartEnable = VK_FALSE;
#define STATIC_VIEWPORT_SCISSOR_PIPELINE
#if true
// STATIC VIEWPORT & SCISSOR
VkViewport viewport{};
viewport.x = 0.0f;
viewport.y = 0.0f;
viewport.width = (float)swapChainExtent.width;
viewport.height = (float)swapChainExtent.height;
viewport.minDepth = 0.0f;
viewport.maxDepth = 1.0f;
VkRect2D scissor{};
scissor.offset = { 0,0 };
scissor.extent = swapChainExtent;
VkPipelineViewportStateCreateInfo viewportState{};
viewportState.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
viewportState.viewportCount = 1;
viewportState.pViewports = &viewport;
viewportState.scissorCount = 1;
viewportState.pScissors = &scissor;
#else
// DYNAMIC VIEWPORT & SCISSOR
std::vector<VkDynamicState> dynamicStates = {
@@ -350,7 +389,6 @@ const std::vector<const char*> deviceExtensions = {
viewportState.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
viewportState.viewportCount = 1;
viewportState.scissorCount = 1;
#endif
VkPipelineRasterizationStateCreateInfo rasterizer{};
rasterizer.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
@@ -386,11 +424,75 @@ const std::vector<const char*> deviceExtensions = {
throw std::runtime_error("failed to create pipeline layout!");
}
VkGraphicsPipelineCreateInfo pipelineInfo{};
pipelineInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
pipelineInfo.stageCount = 2;
pipelineInfo.pStages = shaderStages;
pipelineInfo.pVertexInputState = &vertexInputInfo;
pipelineInfo.pInputAssemblyState = &inputAssembly;
pipelineInfo.pViewportState = &viewportState;
pipelineInfo.pRasterizationState = &rasterizer;
pipelineInfo.pMultisampleState = &multisampling;
pipelineInfo.pDepthStencilState = nullptr;
pipelineInfo.pColorBlendState = &colorBlending;
pipelineInfo.pDynamicState = &dynamicState;
pipelineInfo.layout = pipelineLayout;
pipelineInfo.renderPass = renderPass;
pipelineInfo.subpass = 0;
if (vkCreateGraphicsPipelines(device, VK_NULL_HANDLE, 1, &pipelineInfo, nullptr, &graphicsPipeline) != VK_SUCCESS) {
throw std::runtime_error("Failed to create graphics pipeline!");
}
vkDestroyShaderModule(device, vertShaderModule, nullptr);
vkDestroyShaderModule(device, fragShaderModule, nullptr);
}
void createFramebuffers() {
swapchainFrameBuffers.resize(swapChainImageViews.size());
for (size_t i = 0; i < swapChainImageViews.size(); i++) {
VkImageView attachements[] = {
swapChainImageViews[i]
};
VkFramebufferCreateInfo framebufferInfo{};
framebufferInfo.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
framebufferInfo.renderPass = renderPass;
framebufferInfo.attachmentCount = 1;
framebufferInfo.pAttachments = attachements;
framebufferInfo.width = swapChainExtent.width;
framebufferInfo.height = swapChainExtent.height;
framebufferInfo.layers = 1;
if (vkCreateFramebuffer(device, &framebufferInfo, nullptr, &swapchainFrameBuffers[i]) != VK_SUCCESS) {
throw std::runtime_error("failed to create framebuffer!");
}
}
}
void createCommandPool() {
QueueFamilyIndices queueFamilyIndices = findQueueFamilies(physicalDevice);
VkCommandPoolCreateInfo poolInfo{};
poolInfo.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
poolInfo.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
poolInfo.queueFamilyIndex = queueFamilyIndices.graphicsFamily.value();
if (vkCreateCommandPool(device, &poolInfo, nullptr, &commandPool) != VK_SUCCESS) {
throw std::runtime_error("Failed to create command pool!");
}
}
VkShaderModule createShaderModule(const std::vector<char>& code) {
VkShaderModuleCreateInfo createInfo{};
@@ -717,7 +819,13 @@ const std::vector<const char*> deviceExtensions = {
}
void cleanup(){
vkDestroyCommandPool(device, commandPool, nullptr);
for (auto framebuffer : swapchainFrameBuffers) {
vkDestroyFramebuffer(device, framebuffer, nullptr);
}
vkDestroyPipeline(device, graphicsPipeline, nullptr);
vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
vkDestroyRenderPass(device, renderPass, nullptr);