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 }
  82
  83 void VulkanCommands::begin_render_pass(bool clear, const ClearValue *clear_values)
  84 {
  85         framebuffer = pipeline_state->get_framebuffer();
  86         if(!framebuffer)
  87                 throw invalid_operation("VulkanCommands::begin_render_pass");
  88
  89         viewport = pipeline_state->get_viewport();
  90
  91         if(!primary_buffer)
  92                 begin_buffer(0);
  93
  94         fb_is_swapchain = false;
  95         unsigned n_attachments = framebuffer->get_format().size();
  96         for(unsigned i=0; (!fb_is_swapchain && i<n_attachments); ++i)
  97                 if(dynamic_cast<const SwapChainTexture *>(framebuffer->get_attachment(i)))
  98                         fb_is_swapchain = true;
  99
 100         Rect fb_rect = framebuffer->get_rect();
 101         Rect render_area = fb_rect.intersect(viewport);
 102         bool full_viewport = render_area==fb_rect;
 103         discard_fb_contents = (clear && full_viewport);
 104
 105         framebuffer->refresh();
 106
 107         VkRenderPass render_pass = device.get_pipeline_cache().get_render_pass(framebuffer->get_format(),
 108                 clear, (!clear_values && full_viewport), fb_is_swapchain);
 109         begin_buffer(render_pass);
 110
 111         StructureBuilder sb(pass_begin_info, 2);
 112         VkRenderPassBeginInfo *&begin_info = sb.add<VkRenderPassBeginInfo>(1);
 113         VkClearValue *&vk_clear_values = sb.add<VkClearValue>(FrameFormat::MAX_ATTACHMENTS);
 114
 115         begin_info->sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
 116         begin_info->renderPass = handle_cast<::VkRenderPass>(render_pass);
 117         begin_info->framebuffer = handle_cast<::VkFramebuffer>(framebuffer->handle);
 118
 119         begin_info->renderArea.offset.x = render_area.left;
 120         begin_info->renderArea.offset.y = render_area.bottom;
 121         begin_info->renderArea.extent.width = render_area.width;
 122         begin_info->renderArea.extent.height = render_area.height;
 123
 124         if(clear_values)
 125         {
 126                 unsigned i = 0;
 127                 for(FrameAttachment a: framebuffer->get_format())
 128                 {
 129                         if(get_attach_point(a)==get_attach_point(DEPTH_ATTACHMENT))
 130                                 vk_clear_values[i].depthStencil.depth = clear_values[i].depth_stencil.depth;
 131                         else if(get_attach_point(a)==get_attach_point(STENCIL_ATTACHMENT))
 132                                 vk_clear_values[i].depthStencil.stencil = clear_values[i].depth_stencil.stencil;
 133                         else
 134                         {
 135                                 vk_clear_values[i].color.float32[0] = clear_values[i].color.r;
 136                                 vk_clear_values[i].color.float32[1] = clear_values[i].color.g;
 137                                 vk_clear_values[i].color.float32[2] = clear_values[i].color.b;
 138                                 vk_clear_values[i].color.float32[3] = clear_values[i].color.a;
 139                         }
 140                         ++i;
 141                 }
 142
 143                 begin_info->clearValueCount = framebuffer->get_format().size();
 144                 begin_info->pClearValues = vk_clear_values;
 145         }
 146 }
 147
 148 void VulkanCommands::end_render_pass()
 149 {
 150         const VulkanFunctions &vk = device.get_functions();
 151
 152         vk.EndCommandBuffer(pass_buffer);
 153
 154         device.get_transfer_queue().dispatch_transfers(primary_buffer);
 155
 156         Synchronizer &sync = device.get_synchronizer();
 157         sync.reset();
 158         if(!fb_is_swapchain)
 159                 framebuffer->prepare_image_layouts(discard_fb_contents);
 160         sync.barrier(primary_buffer);
 161
 162         const VkRenderPassBeginInfo &begin_info = *reinterpret_cast<const VkRenderPassBeginInfo *>(pass_begin_info.data());
 163         vk.CmdBeginRenderPass(primary_buffer, begin_info, VK_SUBPASS_CONTENTS_SECONDARY_COMMAND_BUFFERS);
 164         vk.CmdExecuteCommands(primary_buffer, 1, &pass_buffer);
 165         vk.CmdEndRenderPass(primary_buffer);
 166
 167         framebuffer = 0;
 168         viewport = Rect::max();
 169         pass_buffer = 0;
 170 }
 171
 172 void VulkanCommands::begin_frame(unsigned index)
 173 {
 174         const VulkanFunctions &vk = device.get_functions();
 175
 176         frame_index = index%device.get_n_frames_in_flight();
 177         if(frame_index>=command_pools.size())
 178         {
 179                 command_pools.reserve(frame_index+1);
 180                 for(unsigned i=command_pools.size(); i<frame_index+1; ++i)
 181                         command_pools.emplace_back(device);
 182         }
 183
 184         CommandPool *current_pool = &command_pools[frame_index];
 185         if(current_pool->in_use)
 186         {
 187                 current_pool->fence.wait();
 188                 vk.ResetCommandPool(current_pool->pool, 0);
 189                 current_pool->in_use = false;
 190                 current_pool->primary.next_buffer = 0;
 191                 current_pool->secondary.next_buffer = 0;
 192         }
 193 }
 194
 195 void VulkanCommands::submit_frame(Semaphore *wait_sem, Semaphore *signal_sem)
 196 {
 197         if(!primary_buffer)
 198                 return;
 199
 200         const VulkanFunctions &vk = device.get_functions();
 201         ::VkSemaphore vk_wait_sem = (wait_sem ? handle_cast<::VkSemaphore>(wait_sem->handle) : 0);
 202         ::VkSemaphore vk_signal_sem = (signal_sem ? handle_cast<::VkSemaphore>(signal_sem->handle) : 0);
 203         VkPipelineStageFlags wait_stages = VK_PIPELINE_STAGE_ALL_GRAPHICS_BIT;
 204
 205         if(framebuffer)
 206                 end_render_pass();
 207
 208         vk.EndCommandBuffer(primary_buffer);
 209
 210         VkSubmitInfo submit_info = { };
 211         submit_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
 212         submit_info.waitSemaphoreCount = (wait_sem ? 1 : 0);
 213         submit_info.pWaitSemaphores = &vk_wait_sem;
 214         submit_info.pWaitDstStageMask = &wait_stages;
 215         submit_info.commandBufferCount = 1;
 216         submit_info.pCommandBuffers = handle_cast<::VkCommandBuffer *>(&primary_buffer);
 217         submit_info.signalSemaphoreCount = (signal_sem ? 1 : 0);
 218         submit_info.pSignalSemaphores = &vk_signal_sem;
 219
 220         vk.QueueSubmit(1, &submit_info, command_pools[frame_index].fence.handle);
 221
 222         primary_buffer = 0;
 223 }
 224
 225 void VulkanCommands::use_pipeline(const PipelineState *ps)
 226 {
 227         if(!pipeline_state || !ps || ps->get_framebuffer()!=framebuffer || ps->get_viewport()!=viewport)
 228                 if(framebuffer)
 229                         end_render_pass();
 230
 231         pipeline_state = ps;
 232 }
 233
 234 void VulkanCommands::clear(const ClearValue *values)
 235 {
 236         if(framebuffer)
 237                 throw invalid_operation("VulkanCommands::clear");
 238
 239         begin_render_pass(true, values);
 240 }
 241
 242 void VulkanCommands::draw(const Batch &batch)
 243 {
 244         draw_instanced(batch, 1);
 245 }
 246
 247 void VulkanCommands::draw_instanced(const Batch &batch, unsigned count)
 248 {
 249         if(!pipeline_state)
 250                 throw invalid_operation("VulkanCommands::draw_instanced");
 251
 252         const VulkanFunctions &vk = device.get_functions();
 253
 254         if(!framebuffer)
 255                  begin_render_pass(false, 0);
 256
 257         pipeline_state->refresh();
 258         pipeline_state->apply(pass_buffer, frame_index, fb_is_swapchain);
 259         unsigned first_index = batch.get_offset()/batch.get_index_size();
 260         vk.CmdDrawIndexed(pass_buffer, batch.size(), count, first_index, 0, 0);
 261 }
 262
 263 void VulkanCommands::resolve_multisample(Framebuffer &)
 264 {
 265         throw logic_error("VulkanCommands::resolve_multisample is unimplemented");
 266 }
 267
 268 void VulkanCommands::begin_query(const QueryPool &, unsigned)
 269 {
 270         throw logic_error("VulkanCommands::begin_query is unimplemented");
 271 }
 272
 273 void VulkanCommands::end_query(const QueryPool &, unsigned)
 274 {
 275         throw logic_error("VulkanCommands::end_query is unimplemented");
 276 }
 277
 278
 279 VulkanCommands::CommandPool::CommandPool(Device &d):
 280         device(d),
 281         fence(true)
 282 {
 283         const VulkanFunctions &vk = device.get_functions();
 284
 285         VkCommandPoolCreateInfo pool_info = { };
 286         pool_info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
 287         pool_info.flags = VK_COMMAND_POOL_CREATE_TRANSIENT_BIT;
 288         pool_info.queueFamilyIndex = device.get_context().get_private().graphics_queue_family;
 289
 290         vk.CreateCommandPool(pool_info, pool);
 291 }
 292
 293 VulkanCommands::CommandPool::CommandPool(CommandPool &&other):
 294         device(other.device),
 295         pool(other.pool),
 296         fence(move(other.fence)),
 297         in_use(other.in_use)
 298 {
 299         other.pool = 0;
 300 }
 301
 302 VulkanCommands::CommandPool::~CommandPool()
 303 {
 304         const VulkanFunctions &vk = device.get_functions();
 305
 306         if(pool)
 307                 vk.DestroyCommandPool(pool);
 308 }
 309
 310 } // namespace GL
 311 } // namespace Msp