source/backends/vulkan/commands_backend.cpp

   1 #include <msp/core/hash.h>
   2 #include <msp/graphics/vulkancontext_platform.h>
   3 #include "batch.h"
   4 #include "commands_backend.h"
   5 #include "device.h"
   6 #include "error.h"
   7 #include "framebuffer.h"
   8 #include "frameformat.h"
   9 #include "pipelinestate.h"
  10 #include "rect.h"
  11 #include "semaphore.h"
  12 #include "structurebuilder.h"
  13 #include "swapchaintexture.h"
  14 #include "vulkan.h"
  15
  16 using namespace std;
  17
  18 namespace Msp {
  19 namespace GL {
  20
  21 VulkanCommands::VulkanCommands():
  22         device(Device::get_current())
  23 { }
  24
  25 VulkanCommands::~VulkanCommands()
  26 {
  27         const VulkanFunctions &vk = device.get_functions();
  28
  29         vk.QueueWaitIdle();
  30 }
  31
  32 void VulkanCommands::begin_buffer(VkRenderPass render_pass)
  33 {
  34         if(frame_index>=command_pools.size())
  35                 throw invalid_operation("VulkanCommands::begin_buffer");
  36
  37         const VulkanFunctions &vk = device.get_functions();
  38
  39         CommandPool *current_pool = &command_pools[frame_index];
  40         if(!current_pool->in_use)
  41         {
  42                 current_pool->fence.reset();
  43                 current_pool->in_use = true;
  44         }
  45
  46         CommandBuffers &buffers = (render_pass ? current_pool->secondary : current_pool->primary);
  47
  48         if(buffers.next_buffer>=buffers.buffers.size())
  49         {
  50                 VkCommandBufferAllocateInfo alloc_info = { };
  51                 alloc_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
  52                 alloc_info.commandPool = handle_cast<::VkCommandPool>(current_pool->pool);
  53                 alloc_info.level = (render_pass ? VK_COMMAND_BUFFER_LEVEL_SECONDARY : VK_COMMAND_BUFFER_LEVEL_PRIMARY);
  54                 alloc_info.commandBufferCount = 1;
  55
  56                 VkCommandBuffer buffer;
  57                 vk.AllocateCommandBuffers(alloc_info, &buffer);
  58                 buffers.buffers.push_back(buffer);
  59         }
  60
  61         VkCommandBuffer buffer = buffers.buffers[buffers.next_buffer++];
  62         (render_pass ? pass_buffer : primary_buffer) = buffer;
  63
  64         VkCommandBufferBeginInfo begin_info = { };
  65         begin_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
  66         begin_info.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
  67         if(render_pass)
  68                 begin_info.flags |= VK_COMMAND_BUFFER_USAGE_RENDER_PASS_CONTINUE_BIT;
  69
  70         VkCommandBufferInheritanceInfo inherit_info = { };
  71         if(render_pass)
  72         {
  73                 inherit_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_INHERITANCE_INFO;
  74                 inherit_info.renderPass = handle_cast<::VkRenderPass>(render_pass);
  75                 inherit_info.subpass = 0;
  76
  77                 begin_info.pInheritanceInfo = &inherit_info;
  78         }
  79
  80         vk.BeginCommandBuffer(buffer, begin_info);
  81         last_pipeline = 0;
  82 }
  83
  84 void VulkanCommands::begin_render_pass(bool clear, const ClearValue *clear_values)
  85 {
  86         framebuffer = pipeline_state->get_framebuffer();
  87         if(!framebuffer)
  88                 throw invalid_operation("VulkanCommands::begin_render_pass");
  89
  90         viewport = pipeline_state->get_viewport();
  91
  92         if(!primary_buffer)
  93                 begin_buffer(0);
  94
  95         fb_is_swapchain = false;
  96         unsigned n_attachments = framebuffer->get_format().size();
  97         for(unsigned i=0; (!fb_is_swapchain && i<n_attachments); ++i)
  98                 if(dynamic_cast<const SwapChainTexture *>(framebuffer->get_attachment(i)))
  99                         fb_is_swapchain = true;
 100
 101         Rect fb_rect = framebuffer->get_rect();
 102         Rect render_area = fb_rect.intersect(viewport);
 103         bool full_viewport = render_area==fb_rect;
 104         discard_fb_contents = (clear && full_viewport);
 105
 106         framebuffer->refresh();
 107
 108         VkRenderPass render_pass = device.get_pipeline_cache().get_render_pass(framebuffer->get_format(),
 109                 clear, (!clear_values && full_viewport), fb_is_swapchain);
 110         begin_buffer(render_pass);
 111
 112         StructureBuilder sb(pass_begin_info, 2);
 113         VkRenderPassBeginInfo *&begin_info = sb.add<VkRenderPassBeginInfo>(1);
 114         VkClearValue *&vk_clear_values = sb.add<VkClearValue>(FrameFormat::MAX_ATTACHMENTS);
 115
 116         begin_info->sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
 117         begin_info->renderPass = handle_cast<::VkRenderPass>(render_pass);
 118         begin_info->framebuffer = handle_cast<::VkFramebuffer>(framebuffer->handle);
 119
 120         begin_info->renderArea.offset.x = render_area.left;
 121         begin_info->renderArea.offset.y = render_area.bottom;
 122         begin_info->renderArea.extent.width = render_area.width;
 123         begin_info->renderArea.extent.height = render_area.height;
 124
 125         if(clear_values)
 126         {
 127                 unsigned i = 0;
 128                 for(FrameAttachment a: framebuffer->get_format())
 129                 {
 130                         if(get_attach_point(a)==get_attach_point(DEPTH_ATTACHMENT))
 131                                 vk_clear_values[i].depthStencil.depth = clear_values[i].depth_stencil.depth;
 132                         else if(get_attach_point(a)==get_attach_point(STENCIL_ATTACHMENT))
 133                                 vk_clear_values[i].depthStencil.stencil = clear_values[i].depth_stencil.stencil;
 134                         else
 135                         {
 136                                 vk_clear_values[i].color.float32[0] = clear_values[i].color.r;
 137                                 vk_clear_values[i].color.float32[1] = clear_values[i].color.g;
 138                                 vk_clear_values[i].color.float32[2] = clear_values[i].color.b;
 139                                 vk_clear_values[i].color.float32[3] = clear_values[i].color.a;
 140                         }
 141                         ++i;
 142                 }
 143
 144                 begin_info->clearValueCount = framebuffer->get_format().size();
 145                 begin_info->pClearValues = vk_clear_values;
 146         }
 147 }
 148
 149 void VulkanCommands::end_render_pass()
 150 {
 151         const VulkanFunctions &vk = device.get_functions();
 152
 153         vk.EndCommandBuffer(pass_buffer);
 154
 155         device.get_transfer_queue().dispatch_transfers(primary_buffer);
 156
 157         Synchronizer &sync = device.get_synchronizer();
 158         sync.reset();
 159         if(!fb_is_swapchain)
 160                 framebuffer->prepare_image_layouts(discard_fb_contents);
 161         sync.barrier(primary_buffer);
 162
 163         const VkRenderPassBeginInfo &begin_info = *reinterpret_cast<const VkRenderPassBeginInfo *>(pass_begin_info.data());
 164         vk.CmdBeginRenderPass(primary_buffer, begin_info, VK_SUBPASS_CONTENTS_SECONDARY_COMMAND_BUFFERS);
 165         vk.CmdExecuteCommands(primary_buffer, 1, &pass_buffer);
 166         vk.CmdEndRenderPass(primary_buffer);
 167
 168         framebuffer = 0;
 169         viewport = Rect::max();
 170         pass_buffer = 0;
 171 }
 172
 173 void VulkanCommands::begin_frame(unsigned index)
 174 {
 175         const VulkanFunctions &vk = device.get_functions();
 176
 177         frame_index = index%device.get_n_frames_in_flight();
 178         if(frame_index>=command_pools.size())
 179         {
 180                 command_pools.reserve(frame_index+1);
 181                 for(unsigned i=command_pools.size(); i<frame_index+1; ++i)
 182                         command_pools.emplace_back(device);
 183         }
 184
 185         CommandPool *current_pool = &command_pools[frame_index];
 186         if(current_pool->in_use)
 187         {
 188                 current_pool->fence.wait();
 189                 vk.ResetCommandPool(current_pool->pool, 0);
 190                 current_pool->in_use = false;
 191                 current_pool->primary.next_buffer = 0;
 192                 current_pool->secondary.next_buffer = 0;
 193         }
 194 }
 195
 196 void VulkanCommands::submit_frame(Semaphore *wait_sem, Semaphore *signal_sem)
 197 {
 198         if(!primary_buffer)
 199                 return;
 200
 201         const VulkanFunctions &vk = device.get_functions();
 202         ::VkSemaphore vk_wait_sem = (wait_sem ? handle_cast<::VkSemaphore>(wait_sem->handle) : 0);
 203         ::VkSemaphore vk_signal_sem = (signal_sem ? handle_cast<::VkSemaphore>(signal_sem->handle) : 0);
 204         VkPipelineStageFlags wait_stages = VK_PIPELINE_STAGE_ALL_GRAPHICS_BIT;
 205
 206         if(framebuffer)
 207                 end_render_pass();
 208
 209         vk.EndCommandBuffer(primary_buffer);
 210
 211         VkSubmitInfo submit_info = { };
 212         submit_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
 213         submit_info.waitSemaphoreCount = (wait_sem ? 1 : 0);
 214         submit_info.pWaitSemaphores = &vk_wait_sem;
 215         submit_info.pWaitDstStageMask = &wait_stages;
 216         submit_info.commandBufferCount = 1;
 217         submit_info.pCommandBuffers = handle_cast<::VkCommandBuffer *>(&primary_buffer);
 218         submit_info.signalSemaphoreCount = (signal_sem ? 1 : 0);
 219         submit_info.pSignalSemaphores = &vk_signal_sem;
 220
 221         vk.QueueSubmit(1, &submit_info, command_pools[frame_index].fence.handle);
 222
 223         primary_buffer = 0;
 224 }
 225
 226 void VulkanCommands::use_pipeline(const PipelineState *ps)
 227 {
 228         if(!pipeline_state || !ps || ps->get_framebuffer()!=framebuffer || ps->get_viewport()!=viewport)
 229                 if(framebuffer)
 230                         end_render_pass();
 231
 232         pipeline_state = ps;
 233 }
 234
 235 void VulkanCommands::clear(const ClearValue *values)
 236 {
 237         if(framebuffer)
 238                 throw invalid_operation("VulkanCommands::clear");
 239
 240         begin_render_pass(true, values);
 241 }
 242
 243 void VulkanCommands::draw(const Batch &batch)
 244 {
 245         draw_instanced(batch, 1);
 246 }
 247
 248 void VulkanCommands::draw_instanced(const Batch &batch, unsigned count)
 249 {
 250         if(!pipeline_state)
 251                 throw invalid_operation("VulkanCommands::draw_instanced");
 252
 253         const VulkanFunctions &vk = device.get_functions();
 254
 255         if(!framebuffer)
 256                  begin_render_pass(false, 0);
 257
 258         pipeline_state->refresh();
 259         pipeline_state->apply(pass_buffer, last_pipeline, frame_index, fb_is_swapchain);
 260         last_pipeline = pipeline_state;
 261         unsigned first_index = batch.get_offset()/batch.get_index_size();
 262         vk.CmdDrawIndexed(pass_buffer, batch.size(), count, first_index, 0, 0);
 263 }
 264
 265 void VulkanCommands::resolve_multisample(Framebuffer &)
 266 {
 267         throw logic_error("VulkanCommands::resolve_multisample is unimplemented");
 268 }
 269
 270 void VulkanCommands::begin_query(const QueryPool &, unsigned)
 271 {
 272         throw logic_error("VulkanCommands::begin_query is unimplemented");
 273 }
 274
 275 void VulkanCommands::end_query(const QueryPool &, unsigned)
 276 {
 277         throw logic_error("VulkanCommands::end_query is unimplemented");
 278 }
 279
 280
 281 VulkanCommands::CommandPool::CommandPool(Device &d):
 282         device(d),
 283         fence(true)
 284 {
 285         const VulkanFunctions &vk = device.get_functions();
 286
 287         VkCommandPoolCreateInfo pool_info = { };
 288         pool_info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
 289         pool_info.flags = VK_COMMAND_POOL_CREATE_TRANSIENT_BIT;
 290         pool_info.queueFamilyIndex = device.get_context().get_private().graphics_queue_family;
 291
 292         vk.CreateCommandPool(pool_info, pool);
 293 }
 294
 295 VulkanCommands::CommandPool::CommandPool(CommandPool &&other):
 296         device(other.device),
 297         pool(other.pool),
 298         fence(move(other.fence)),
 299         in_use(other.in_use)
 300 {
 301         other.pool = 0;
 302 }
 303
 304 VulkanCommands::CommandPool::~CommandPool()
 305 {
 306         const VulkanFunctions &vk = device.get_functions();
 307
 308         if(pool)
 309                 vk.DestroyCommandPool(pool);
 310 }
 311
 312 } // namespace GL
 313 } // namespace Msp