Updated gitignore, added pipeline creation code and basic render loop
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bf3a2c33df
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1fa7b38624
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#ifndef PIPELINE_H
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#define PIPELINE_H
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#include "vulkan/vulkan_core.h"
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#include "cglm/types.h"
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typedef struct GraphicsPipelineStruct {
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VkDescriptorPool descriptor_pool;
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VkDescriptorSet* descriptors;
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VkPipelineLayout layout;
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VkPipeline pipeline;
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} GraphicsPipeline;
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struct Vertex2 {
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vec2 pos;
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vec3 color;
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};
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#endif
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#include "pipeline.h"
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#include "stdio.h"
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#include "stdlib.h"
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VkShaderModule load_shader_file(const char* path, VkDevice device) {
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FILE* file;
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file = fopen(path, "rb");
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if(file == 0) {
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return VK_NULL_HANDLE;
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}
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int result = fseek(file, 0, SEEK_END);
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if(result != 0) {
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return VK_NULL_HANDLE;
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}
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long buffer_size = ftell(file);
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result = fseek(file, 0, SEEK_SET);
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if(result != 0) {
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return VK_NULL_HANDLE;
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}
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char * buffer = malloc(buffer_size);
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if(buffer == 0) {
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return VK_NULL_HANDLE;
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}
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size_t read = fread(buffer, 1, buffer_size, file);
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VkShaderModuleCreateInfo shader_info = {
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.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO,
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.codeSize = read,
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.pCode = (uint32_t*)buffer,
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};
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VkShaderModule shader;
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result = vkCreateShaderModule(device, &shader_info, 0, &shader);
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free(buffer);
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if(result != VK_SUCCESS) {
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return VK_NULL_HANDLE;
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}
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return shader;
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}
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VkResult create_ui_rect_pipeline(VkDevice device, VkRenderPass render_pass, GraphicsPipeline* out) {
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if(out == NULL) {
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return VK_ERROR_VALIDATION_FAILED_EXT;
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}
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VkShaderModule vert_shader = load_shader_file("shader_src/ui_rect.vert.spv", device);
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VkShaderModule frag_shader = load_shader_file("shader_src/ui_rect.frag.spv", device);
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VkPipelineShaderStageCreateInfo shader_stages[2] = {
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{
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.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
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.stage = VK_SHADER_STAGE_VERTEX_BIT,
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.module = vert_shader,
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.pName = "main",
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},
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{
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.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
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.stage = VK_SHADER_STAGE_FRAGMENT_BIT,
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.module = frag_shader,
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.pName = "main",
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},
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};
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VkVertexInputBindingDescription bindings[1] = {
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{
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.binding = 0, // Which buffer 'binding' to use
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.stride = sizeof(struct Vertex2), // How many bytes to increase the index between instance
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.inputRate = VK_VERTEX_INPUT_RATE_VERTEX, // Whether an instance is a vertex or an index
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},
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};
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VkVertexInputAttributeDescription attributes[3] = {
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{
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.binding = 0, // Which buffer 'binding' to use
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.location = 0, // Which 'location' to export as to shader
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.format = VK_FORMAT_R32G32_SFLOAT, // What format to interpret as for shader
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.offset = offsetof(struct Vertex2, pos), // What offset from instance start
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},
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{
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.binding = 0,
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.location = 1,
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.format = VK_FORMAT_R32G32B32_SFLOAT,
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.offset = offsetof(struct Vertex2, color),
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},
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};
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VkPipelineVertexInputStateCreateInfo input_info = {
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.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO,
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.pVertexBindingDescriptions = bindings,
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.vertexBindingDescriptionCount = sizeof(bindings)/sizeof(VkVertexInputBindingDescription),
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.pVertexAttributeDescriptions = attributes,
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.vertexAttributeDescriptionCount = sizeof(attributes)/sizeof(VkVertexInputAttributeDescription),
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};
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VkPushConstantRange pcr = {
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.stageFlags = VK_SHADER_STAGE_ALL,
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.offset = 0,
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.size = sizeof(VkDeviceAddress),
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};
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VkPipelineLayoutCreateInfo layout_info = {
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.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO,
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.pushConstantRangeCount = 1,
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.pPushConstantRanges = &pcr,
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};
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VkResult result = vkCreatePipelineLayout(device, &layout_info, 0, &out->layout);
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if(result != VK_SUCCESS) {
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return result;
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}
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VkDynamicState dynamic_states[] = {
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VK_DYNAMIC_STATE_VIEWPORT,
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VK_DYNAMIC_STATE_SCISSOR,
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};
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uint32_t dynamic_state_count = sizeof(dynamic_states)/sizeof(VkDynamicState);
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VkPipelineDynamicStateCreateInfo dynamic_info = {
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.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO,
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.dynamicStateCount = dynamic_state_count,
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.pDynamicStates = dynamic_states,
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};
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VkPipelineInputAssemblyStateCreateInfo input_assembly_info = {
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.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO,
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.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
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.primitiveRestartEnable = VK_FALSE,
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};
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VkViewport viewport = {
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.x = 0.0f,
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.y = 0.0f,
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.width = (float)(100),
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.height = (float)(100),
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.minDepth = 0.0f,
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.maxDepth = 1.0f,
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};
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VkRect2D scissor = {
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.offset = {
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.x = 0,
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.y = 0,
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},
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.extent = {
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.width = 100,
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.height = 100,
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},
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};
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VkPipelineViewportStateCreateInfo viewport_state = {
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.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO,
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.viewportCount = 1,
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.pViewports = &viewport,
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.scissorCount = 1,
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.pScissors = &scissor,
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};
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VkPipelineRasterizationStateCreateInfo raster_info = {
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.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO,
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.depthClampEnable = VK_FALSE,
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.rasterizerDiscardEnable = VK_FALSE,
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.polygonMode = VK_POLYGON_MODE_FILL,
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.lineWidth = 1.0f,
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.cullMode = VK_CULL_MODE_BACK_BIT,
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.frontFace = VK_FRONT_FACE_CLOCKWISE,
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.depthBiasEnable = VK_FALSE,
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.depthBiasConstantFactor = 0.0f,
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.depthBiasClamp = 0.0f,
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.depthBiasSlopeFactor = 0.0f,
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};
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VkPipelineMultisampleStateCreateInfo multisample_info = {
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.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO,
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.sampleShadingEnable = VK_FALSE,
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.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT,
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.minSampleShading = 1.0f,
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.pSampleMask = 0,
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.alphaToCoverageEnable = VK_FALSE,
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.alphaToOneEnable = VK_FALSE,
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};
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VkPipelineDepthStencilStateCreateInfo depth_info = {
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.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO,
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.depthTestEnable = VK_TRUE,
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.depthWriteEnable = VK_TRUE,
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.depthCompareOp = VK_COMPARE_OP_LESS,
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.depthBoundsTestEnable = VK_FALSE,
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.maxDepthBounds = 1.0f,
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.minDepthBounds = 0.0f,
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.stencilTestEnable = VK_FALSE,
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.front = {},
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.back = {},
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};
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VkPipelineColorBlendAttachmentState color_blend_attachment = {
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.colorWriteMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT,
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.blendEnable = VK_TRUE,
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.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA,
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.dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA,
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.colorBlendOp = VK_BLEND_OP_ADD,
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.srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE,
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.dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO,
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.alphaBlendOp = VK_BLEND_OP_ADD,
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};
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VkPipelineColorBlendStateCreateInfo color_blend_info = {
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.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO,
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.logicOpEnable = VK_FALSE,
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.logicOp = VK_LOGIC_OP_COPY,
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.attachmentCount = 1,
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.pAttachments = &color_blend_attachment,
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.blendConstants[0] = 0.0f,
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.blendConstants[1] = 0.0f,
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.blendConstants[2] = 0.0f,
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.blendConstants[3] = 0.0f,
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};
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VkGraphicsPipelineCreateInfo draw_pipeline_info = {
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.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO,
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.stageCount = 2,
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.pStages = shader_stages,
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.pVertexInputState = &input_info,
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.pInputAssemblyState = &input_assembly_info,
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.pViewportState = &viewport_state,
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.pRasterizationState = &raster_info,
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.pColorBlendState = &color_blend_info,
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.pDynamicState = &dynamic_info,
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.pDepthStencilState = &depth_info,
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.pMultisampleState = &multisample_info,
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.layout = out->layout,
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.renderPass = render_pass,
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.subpass = 0,
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.basePipelineHandle = VK_NULL_HANDLE,
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.basePipelineIndex = -1,
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};
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result = vkCreateGraphicsPipelines(device, VK_NULL_HANDLE, 1, &draw_pipeline_info, 0, &out->pipeline);
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if(result != VK_SUCCESS) {
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return result;
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}
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return VK_SUCCESS;
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}
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