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