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Add graphics pipeline

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Abdelrahman Said
2026-06-21 14:27:23 +01:00
parent 44a34ed0a2
commit 09239c0cda
1 changed files with 145 additions and 0 deletions
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main.cpp
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@@ -1,5 +1,6 @@
// vim:fileencoding=utf-8:foldmethod=marker
#include "vulkan/vulkan_core.h"
#include "wapp/wapp.h"
#include "vulkan_profiles/vulkan_profiles.h"
#include "ktx.h"
@@ -91,6 +92,9 @@ typedef VkDescriptorImageInfo *VkDescriptorImageInfoArray;
typedef VkBufferImageCopy *VkBufferImageCopyArray;
typedef slang::TargetDesc *SlangTargetDescArray;
typedef slang::CompilerOptionEntry *SlangCompOptEntryArray;
typedef VkVertexInputAttributeDescription *VkVertexInputAttributeDescriptionArray;
typedef VkPipelineShaderStageCreateInfo *VkPipelineShaderStageCreateInfoArray;
typedef VkDynamicState *VkDynamicStateArray;
// }}}
// {{{ Helper Function Declarations
@@ -144,6 +148,8 @@ wapp_intern VkDescriptorPool desc_pool = VK_NULL_HANDLE;
wapp_intern VkDescriptorSet desc_set_tex = VK_NULL_HANDLE;
wapp_intern Slang::ComPtr<slang::IGlobalSession> slang_global_session;
wapp_intern VkShaderModule shader_module = VK_NULL_HANDLE;
wapp_intern VkPipelineLayout graphics_pipeline_layout = VK_NULL_HANDLE;
wapp_intern VkPipeline graphics_pipeline = VK_NULL_HANDLE;
// }}}
int main() {
@@ -960,6 +966,143 @@ int main() {
// }}}
// }}}
// {{{ Graphics Pipeline
// {{{ Create Pipeline Layout
// The pipeline layout defines the interface between the pipeline and our shaders. We add a push
// constant range and the texture descriptor set layout. A push constant range defines a range of
// values that we can directly push to the shader without having to go through a buffer. We use
// these to pass a pointer to the shader data buffer.
VkPushConstantRange push_constants = {};
push_constants.stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
push_constants.size = sizeof(VkDeviceAddress);
VkPipelineLayoutCreateInfo pl_create_info = {};
pl_create_info.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pl_create_info.setLayoutCount = 1;
pl_create_info.pSetLayouts = &desc_set_layout_tex;
pl_create_info.pushConstantRangeCount = 1;
pl_create_info.pPushConstantRanges = &push_constants;
check(vkCreatePipelineLayout(device, &pl_create_info, NULL, &graphics_pipeline_layout));
// }}}
// {{{ Vertex Binding And Attributes
VkVertexInputBindingDescription vertex_binding = {};
vertex_binding.binding = 0;
vertex_binding.stride = sizeof(Vertex);
vertex_binding.inputRate = VK_VERTEX_INPUT_RATE_VERTEX;
VkVertexInputAttributeDescriptionArray vertex_attributes = wapp_array(
VkVertexInputAttributeDescription,
// Location, Binding, Format, Offset
VkVertexInputAttributeDescription{0, 0, VK_FORMAT_R32G32B32_SFLOAT, 0},
VkVertexInputAttributeDescription{1, 0, VK_FORMAT_R32G32B32_SFLOAT, offsetof(Vertex, normal)},
VkVertexInputAttributeDescription{2, 0, VK_FORMAT_R32G32_SFLOAT, offsetof(Vertex, uv)}
);
VkPipelineVertexInputStateCreateInfo vertex_input_state = {};
vertex_input_state.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
vertex_input_state.vertexBindingDescriptionCount = 1;
vertex_input_state.pVertexBindingDescriptions = &vertex_binding;
vertex_input_state.vertexAttributeDescriptionCount = wapp_array_count(vertex_attributes);
vertex_input_state.pVertexAttributeDescriptions = vertex_attributes;
// }}}
// {{{ Input Assembly
VkPipelineInputAssemblyStateCreateInfo input_assembly_state = {};
input_assembly_state.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
input_assembly_state.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
// }}}
// {{{ Shader Stages
VkPipelineShaderStageCreateInfoArray shader_stages = wapp_array_with_capacity(VkPipelineShaderStageCreateInfo, 2, ARRAY_INIT_FILLED);
// Vertex Shader
shader_stages[0].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
shader_stages[0].stage = VK_SHADER_STAGE_VERTEX_BIT;
shader_stages[0].module = shader_module;
shader_stages[0].pName = "main";
// Fragment Shader
shader_stages[1].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
shader_stages[1].stage = VK_SHADER_STAGE_FRAGMENT_BIT;
shader_stages[1].module = shader_module;
shader_stages[1].pName = "main";
// }}}
// {{{ Viewport And Scissor Dynamic States
VkPipelineViewportStateCreateInfo viewport_state = {};
viewport_state.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
viewport_state.viewportCount = 1;
viewport_state.scissorCount = 1;
VkDynamicStateArray dynamic_states = wapp_array(VkDynamicState, VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR);
VkPipelineDynamicStateCreateInfo dynamic_state = {};
dynamic_state.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
dynamic_state.dynamicStateCount = wapp_array_count(dynamic_states);
dynamic_state.pDynamicStates = dynamic_states;
// }}}
// {{{ Depth/Stencil State
VkPipelineDepthStencilStateCreateInfo depth_stencil_state = {};
depth_stencil_state.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO;
depth_stencil_state.depthTestEnable = VK_TRUE;
depth_stencil_state.depthWriteEnable = VK_TRUE;
depth_stencil_state.depthCompareOp = VK_COMPARE_OP_LESS_OR_EQUAL;
// }}}
// {{{ Dynamic Rendering
VkPipelineRenderingCreateInfo rendering_create_info = {};
rendering_create_info.sType = VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO;
rendering_create_info.colorAttachmentCount = 1;
rendering_create_info.pColorAttachmentFormats = &image_format;
rendering_create_info.depthAttachmentFormat = depth_format;
// }}}
// {{{ Blending State
// Blending disabled
VkPipelineColorBlendAttachmentState blend_attachment = {};
blend_attachment.colorWriteMask = 0xf;
VkPipelineColorBlendStateCreateInfo blend_state = {};
blend_state.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
blend_state.attachmentCount = 1;
blend_state.pAttachments = &blend_attachment;
// }}}
// {{{ Rasterization State
VkPipelineRasterizationStateCreateInfo rasterization_state = {};
rasterization_state.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
rasterization_state.lineWidth = 1.0f;
// }}}
// {{{ Multisampling State
VkPipelineMultisampleStateCreateInfo multisampling_state = {};
multisampling_state.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
multisampling_state.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT;
// }}}
// {{{ Create Graphics Pipeline
VkGraphicsPipelineCreateInfo graphics_pipeline_create_info = {};
graphics_pipeline_create_info.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
graphics_pipeline_create_info.pNext = &rendering_create_info;
graphics_pipeline_create_info.stageCount = wapp_array_count(shader_stages);
graphics_pipeline_create_info.pStages = shader_stages;
graphics_pipeline_create_info.pVertexInputState = &vertex_input_state;
graphics_pipeline_create_info.pInputAssemblyState = &input_assembly_state;
graphics_pipeline_create_info.pViewportState = &viewport_state;
graphics_pipeline_create_info.pRasterizationState = &rasterization_state;
graphics_pipeline_create_info.pMultisampleState = &multisampling_state;
graphics_pipeline_create_info.pDepthStencilState = &depth_stencil_state;
graphics_pipeline_create_info.pColorBlendState = &blend_state;
graphics_pipeline_create_info.pDynamicState = &dynamic_state;
graphics_pipeline_create_info.layout = graphics_pipeline_layout;
check(vkCreateGraphicsPipelines(device, VK_NULL_HANDLE, 1, &graphics_pipeline_create_info, NULL, &graphics_pipeline));
// }}}
// }}}
// {{{ Render Loop
SDL_Event event = {};
while (running) {
@@ -979,6 +1122,8 @@ int main() {
// }}}
// {{{ Cleanup
vkDestroyPipeline(device, graphics_pipeline, NULL);
vkDestroyPipelineLayout(device, graphics_pipeline_layout, NULL);
vkDestroyShaderModule(device, shader_module, NULL);
vkDestroyDescriptorPool(device, desc_pool, NULL);
vkDestroyDescriptorSetLayout(device, desc_set_layout_tex, NULL);