375 lines
11 KiB
C
375 lines
11 KiB
C
#include "GLFW/glfw3.h"
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#include "ui.h"
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#include "gpu.h"
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#include "draw.h"
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#include "arpa/inet.h"
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#include "vk_mem_alloc.h"
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#include "vulkan/vk_enum_string_helper.h"
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#include "vulkan/vulkan_core.h"
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#include "pthread.h"
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#include "stdatomic.h"
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typedef struct ClientContextStruct {
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GLFWwindow* window;
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RenderContext render;
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UIContext ui;
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} ClientContext;
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void record_ui_compute(VkCommandBuffer command_buffer, UIContext* ui_context) {
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UIPushConstant push = {
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.time = 0.0,
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.layer = 0,
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};
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vkCmdBindPipeline(command_buffer, VK_PIPELINE_BIND_POINT_COMPUTE, ui_context->string_pipeline.pipeline);
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for(uint32_t i = 0; i < ui_context->max_containers; i++) {
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if(ui_context->containers[i].id != 0x00000000) {
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for(uint32_t j = 0; j < ui_context->containers[i].layer_count; j++) {
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push.layer = ui_context->containers[i].layers[j].address;
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VkBufferMemoryBarrier draw_command_barrier_1 = {
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.sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER,
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.buffer = ui_context->containers[i].layers[j].layer,
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.offset = offsetof(GPULayer, draw),
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.size = sizeof(DrawCommand),
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.srcAccessMask = VK_ACCESS_INDIRECT_COMMAND_READ_BIT,
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.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT | VK_ACCESS_TRANSFER_READ_BIT,
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};
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vkCmdPipelineBarrier(command_buffer, VK_PIPELINE_STAGE_DRAW_INDIRECT_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, NULL, 1, &draw_command_barrier_1, 0, NULL);
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command_copy_buffer(command_buffer, ui_context->containers[i].layers[j].layer, ui_context->containers[i].layers[j].layer, offsetof(GPULayer, num_drawables), offsetof(GPULayer, draw) + offsetof(DrawCommand, instance_count), sizeof(uint32_t));
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VkBufferMemoryBarrier draw_command_barrier_2 = {
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.sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER,
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.buffer = ui_context->containers[i].layers[j].layer,
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.offset = offsetof(GPULayer, draw),
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.size = sizeof(DrawCommand),
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.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT | VK_ACCESS_TRANSFER_READ_BIT,
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.dstAccessMask = VK_ACCESS_SHADER_WRITE_BIT,
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};
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vkCmdPipelineBarrier(command_buffer, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, 0, 0, NULL, 1, &draw_command_barrier_2, 0, NULL);
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vkCmdPushConstants(command_buffer, ui_context->string_pipeline.layout, VK_SHADER_STAGE_COMPUTE_BIT, 0, 16, &push);
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vkCmdDispatchIndirect(command_buffer, ui_context->containers[i].layers[j].layer, offsetof(GPULayer, dispatch_strings));
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VkBufferMemoryBarrier draw_command_barrier_3 = {
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.sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER,
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.buffer = ui_context->containers[i].layers[j].layer,
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.offset = offsetof(GPULayer, draw),
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.size = sizeof(DrawCommand),
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.srcAccessMask = VK_ACCESS_SHADER_WRITE_BIT,
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.dstAccessMask = VK_ACCESS_INDIRECT_COMMAND_READ_BIT,
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};
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vkCmdPipelineBarrier(command_buffer, VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, VK_PIPELINE_STAGE_DRAW_INDIRECT_BIT, 0, 0, NULL, 1, &draw_command_barrier_3, 0, NULL);
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VkBufferMemoryBarrier drawables_barrier = {
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.sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER,
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.buffer = ui_context->containers[i].layers[j].drawables,
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.offset = 0,
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.size = sizeof(GPUDrawable)*ui_context->containers[i].layers[j].data.max_drawables,
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.srcAccessMask = VK_ACCESS_SHADER_WRITE_BIT,
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.dstAccessMask = VK_ACCESS_SHADER_READ_BIT,
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};
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vkCmdPipelineBarrier(command_buffer, VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, VK_PIPELINE_STAGE_VERTEX_SHADER_BIT, 0, 0, NULL, 1, &drawables_barrier, 0, NULL);
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}
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}
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}
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}
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VkResult test_ui(RenderContext* gpu, UIContext* ui) {
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VkResult result;
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GPUString context_strings[] = {
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{
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.pos = {0, 32},
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.size = 32,
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.color = {1.0, 1.0, 1.0, 1.0},
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.offset = 0,
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.length = strlen("Example Text"),
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.font = 0,
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},
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{
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.pos = {0, 64},
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.size = 32,
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.color = {1.0, 1.0, 1.0, 1.0},
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.offset = strlen("Example Text"),
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.length = strlen("Example Text"),
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.font = 1,
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},
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{
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.pos = {0, 96},
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.size = 32,
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.color = {1.0, 1.0, 1.0, 1.0},
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.offset = 2*strlen("Example Text"),
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.length = strlen("Example Text"),
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.font = 2,
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},
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};
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uint32_t context_codes[256];
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map_string("Example Text", context_codes, 0, 0, ui);
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map_string("Example Text", context_codes, strlen("Example Text"), 1, ui);
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map_string("Example Text", context_codes, 2*strlen("Example Text"), 2, ui);
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LayerInput context_layers[] = {
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{
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.num_strings = sizeof(context_strings)/sizeof(GPUString),
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.strings = context_strings,
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.num_codes = sizeof(context_codes)/sizeof(uint32_t),
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.codes = context_codes,
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},
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};
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ContainerInput context_info = {
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.id = 0x01,
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.anchor = ANCHOR_TOP_LEFT,
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.size = {WINDOW_MIN_WIDTH, WINDOW_MIN_HEIGHT},
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.layer_count = sizeof(context_layers)/sizeof(LayerInput),
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.layers = context_layers,
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};
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vec2 map_size = {250, 200};
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GPUDrawable map_rects[] = {
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{
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.pos = {0.0, 0.0},
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.size = {map_size[0], map_size[1]},
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.color = {0.0, 0.5,0.8, 1.0},
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.type = 0,
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},
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};
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LayerInput map_layers[] = {
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{
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.num_drawables = sizeof(map_rects)/sizeof(GPUDrawable),
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.drawables = map_rects,
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},
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};
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ContainerInput map_info = {
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.id = 0x02,
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.anchor = ANCHOR_TOP_RIGHT,
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.size = {map_size[0], map_size[1]},
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.layer_count = sizeof(map_layers)/sizeof(LayerInput),
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.layers = map_layers,
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};
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vec2 inventory_size = {map_size[0], WINDOW_MIN_HEIGHT-map_size[1]};
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GPUDrawable inventory_rects[] = {
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{
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.pos = {0, 0},
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.size = {inventory_size[0], inventory_size[1]},
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.color = {0.5, 0.8, 0.0, 1.0},
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.type = 0,
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},
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};
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LayerInput inventory_layers[] = {
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{
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.num_drawables = sizeof(inventory_rects)/sizeof(GPUDrawable),
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.drawables = inventory_rects,
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},
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};
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ContainerInput inventory_info = {
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.id = 0x03,
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.anchor = ANCHOR_BOTTOM_RIGHT,
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.size = {inventory_size[0], inventory_size[1]},
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.layer_count = sizeof(inventory_layers)/sizeof(LayerInput),
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.layers = inventory_layers,
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};
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vec2 chat_size = {WINDOW_MIN_WIDTH-inventory_size[0], 200};
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GPUDrawable chat_rects[] = {
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{
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.pos = {0, 0},
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.size = {chat_size[0], chat_size[1]},
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.color = {0.8, 0.0, 0.5, 1.0},
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.type = 0,
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},
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};
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LayerInput chat_layers[] = {
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{
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.num_drawables = sizeof(chat_rects)/sizeof(GPUDrawable),
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.drawables = chat_rects,
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},
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};
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ContainerInput chat_info = {
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.id = 0x04,
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.anchor = ANCHOR_BOTTOM_LEFT,
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.size = {chat_size[0], chat_size[1]},
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.layer_count = sizeof(chat_layers)/sizeof(LayerInput),
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.layers = chat_layers,
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};
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VK_RESULT(create_container(&context_info, gpu, ui));
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VK_RESULT(create_container(&map_info, gpu, ui));
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VK_RESULT(create_container(&inventory_info, gpu, ui));
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VK_RESULT(create_container(&chat_info, gpu, ui));
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for(uint32_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++) {
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VkCommandBuffer command_buffer = command_begin_single(gpu->device, gpu->transfer_pool);
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record_ui_compute(command_buffer, ui);
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VK_RESULT(command_end_single(gpu->device, command_buffer, gpu->transfer_pool, gpu->transfer_queue));
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}
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return VK_SUCCESS;
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}
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// Threads:
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// 1. render
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// - Submits the draw buffer to the GPU as soon as it can
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// 2. network
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// - Handles packets to/from the network to/from the main thread
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// 3. main
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// - updates the data in the GPU that's being drawn from
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// - updates the data in the GPU from network requests
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//
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// Data:
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// Render thread reads Render and UI context
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// Main thread reads and writes UI context
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void* render_thread(void* data) {
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ClientContext* context = (ClientContext*)data;
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double last_frame_time = glfwGetTime();
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while(glfwWindowShouldClose(context->window) == 0) {
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double frame_time = glfwGetTime();
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double delta_time = frame_time - last_frame_time;
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(void)delta_time;
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VkResult result = draw_frame(&context->render, &context->ui, frame_time);
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if(result != VK_SUCCESS) {
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fprintf(stderr, "draw_frame error: %s\n", string_VkResult(result));
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glfwDestroyWindow(context->window);
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}
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last_frame_time = frame_time;
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}
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return NULL;
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}
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void* network_thread(void* data) {
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ClientContext* context = (ClientContext*)data;
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(void)context;
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return NULL;
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}
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int main_thread(void* data) {
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ClientContext* context = (ClientContext*)data;
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int x = 0;
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while(glfwWindowShouldClose(context->window) == 0) {
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glfwPollEvents();
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if(x == 0 && glfwGetTime() > 0.0) {
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x = 1;
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test_ui(&context->render, &context->ui);
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}
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}
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return 0;
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}
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void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods) {
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(void)window;
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(void)key;
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(void)scancode;
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(void)action;
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(void)mods;
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}
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void mouse_button_callback(GLFWwindow* window, int button, int action, int mods) {
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ClientContext* context = (ClientContext*)glfwGetWindowUserPointer(window);
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(void)mods;
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(void)context;
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switch(button) {
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// Handle camera hover
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case GLFW_MOUSE_BUTTON_MIDDLE:
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if(action == GLFW_PRESS) {
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glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
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} else {
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glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
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}
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break;
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case GLFW_MOUSE_BUTTON_LEFT:
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if(action == GLFW_PRESS) {
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// NOTE: this logic is the same as it would be for right-click(just with different outcomes), so dont repeat yourself
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// 1. Search through the UI context for the first element that the contains the mouse point
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// 2. If no UI element intersection, cast a ray through the world scene to find the "clicked entity"
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// 3. Based on what was clicked, start the mouse click animation at the target area
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}
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break;
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case GLFW_MOUSE_BUTTON_RIGHT:
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if(action == GLFW_PRESS) {
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}
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break;
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}
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}
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void scroll_callback(GLFWwindow* window, double xoffset, double yoffset) {
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(void)window;
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(void)xoffset;
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(void)yoffset;
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}
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void cursor_pos_callback(GLFWwindow* window, double xpos, double ypos) {
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(void)window;
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(void)xpos;
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(void)ypos;
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}
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int main() {
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ClientContext context = {};
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context.window = init_window();
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if(context.window == NULL) {
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return 1;
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}
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glfwSetWindowUserPointer(context.window, &context);
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glfwSetKeyCallback(context.window, key_callback);
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glfwSetMouseButtonCallback(context.window, mouse_button_callback);
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glfwSetScrollCallback(context.window, scroll_callback);
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glfwSetCursorPosCallback(context.window, cursor_pos_callback);
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int error;
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VkResult result;
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VK_RESULT(init_vulkan(context.window, &context.render));
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// TODO: make # of fonts/textures/containers scaling, recreate GPU buffers as necessary
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VK_RESULT(create_ui_context(10, 10, 10, &context.render, &context.ui));
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// Start threads
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pthread_t render_thread_handle;
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pthread_t network_thread_handle;
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error = pthread_create(&render_thread_handle, NULL, &render_thread, &context);
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if(error != 0) {
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return error;
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}
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error = pthread_create(&network_thread_handle, NULL, &network_thread, &context);
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if(error != 0) {
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return error;
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}
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error = main_thread(&context);
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if(error != 0) {
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return error;
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}
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error = pthread_join(render_thread_handle, NULL);
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if(error != 0) {
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return error;
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}
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error = pthread_join(network_thread_handle, NULL);
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if(error != 0) {
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return error;
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}
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return 0;
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}
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