source/backends/vulkan/pipelinestate_backend.cpp

   1 #include <msp/core/algorithm.h>
   2 #include <msp/core/hash.h>
   3 #include "batch.h"
   4 #include "blend.h"
   5 #include "buffer.h"
   6 #include "depthtest.h"
   7 #include "device.h"
   8 #include "framebuffer.h"
   9 #include "pipelinestate.h"
  10 #include "pipelinestate_backend.h"
  11 #include "program.h"
  12 #include "rect.h"
  13 #include "sampler.h"
  14 #include "stenciltest.h"
  15 #include "structurebuilder.h"
  16 #include "texture.h"
  17 #include "uniformblock.h"
  18 #include "vertexsetup.h"
  19 #include "vulkan.h"
  20
  21 using namespace std;
  22
  23 namespace Msp {
  24 namespace GL {
  25
  26 VulkanPipelineState::VulkanPipelineState():
  27         device(Device::get_current())
  28 { }
  29
  30 VulkanPipelineState::VulkanPipelineState(VulkanPipelineState &&other):
  31         device(other.device),
  32         handle(other.handle)
  33 { }
  34
  35 void VulkanPipelineState::update() const
  36 {
  37         const PipelineState &self = *static_cast<const PipelineState *>(this);
  38
  39         unapplied |= changes&(PipelineState::VIEWPORT|PipelineState::SCISSOR|PipelineState::VERTEX_SETUP);
  40
  41         if(changes&PipelineState::VERTEX_SETUP)
  42                 self.vertex_setup->refresh();
  43
  44         constexpr unsigned pipeline_mask = PipelineState::SHPROG|PipelineState::VERTEX_SETUP|PipelineState::FACE_CULL|
  45                 PipelineState::DEPTH_TEST|PipelineState::STENCIL_TEST|PipelineState::BLEND|PipelineState::PRIMITIVE_TYPE;
  46         if(changes&pipeline_mask)
  47         {
  48                 handle = device.get_pipeline_cache().get_pipeline(self);
  49                 unapplied |= PipelineState::SHPROG;
  50         }
  51
  52         if(changes&(PipelineState::SHPROG|PipelineState::UNIFORMS|PipelineState::TEXTURES))
  53         {
  54                 unsigned changed_sets = (changes&PipelineState::SHPROG ? ~0U : 0U);
  55                 for(const PipelineState::BoundUniformBlock &u: self.uniform_blocks)
  56                         if(u.changed || changed_sets==~0U)
  57                         {
  58                                 if(u.block)
  59                                         u.used = self.shprog->uses_uniform_block_binding(u.binding);
  60                                 if(u.binding>=0)
  61                                         changed_sets |= 1<<(u.binding>>20);
  62                                 u.changed = false;
  63                         }
  64                 for(const PipelineState::BoundTexture &t: self.textures)
  65                         if(t.changed || changed_sets==~0U)
  66                         {
  67                                 if(t.texture && t.sampler)
  68                                         t.used = self.shprog->uses_texture_binding(t.binding);
  69                                 changed_sets |= 1<<(t.binding>>20);
  70                                 if(t.texture && t.level>=0)
  71                                         t.texture->refresh_mip_views();
  72                                 if(t.sampler)
  73                                         t.sampler->refresh();
  74                                 t.changed = false;
  75                         }
  76
  77                 if(changed_sets)
  78                 {
  79                         descriptor_set_slots.resize(self.shprog->get_n_descriptor_sets());
  80                         first_changed_desc_set = descriptor_set_slots.size();
  81                         for(unsigned i=0; i<descriptor_set_slots.size(); ++i)
  82                                 if(changed_sets&(1<<i))
  83                                 {
  84                                         descriptor_set_slots[i] = device.get_descriptor_pool().get_descriptor_set_slot(self, i);
  85                                         first_changed_desc_set = min(first_changed_desc_set, i);
  86                                 }
  87
  88                         unapplied |= PipelineState::UNIFORMS;
  89                 }
  90         }
  91
  92         changes = 0;
  93 }
  94
  95 uint64_t VulkanPipelineState::compute_hash() const
  96 {
  97         const PipelineState &self = *static_cast<const PipelineState *>(this);
  98         const FrameFormat &format = self.framebuffer->get_format();
  99
 100         uint64_t result = hash<64>(self.shprog);
 101         result = hash_update<64>(result, self.vertex_setup->compute_hash());
 102         result = hash_round<64>(result, self.primitive_type);
 103
 104         if(self.front_face!=NON_MANIFOLD && self.face_cull!=NO_CULL)
 105         {
 106                 result = hash_round<64>(result, self.front_face);
 107                 result = hash_round<64>(result, self.face_cull);
 108         }
 109
 110         result = hash_round<64>(result, format.get_samples());
 111
 112         if(self.depth_test.enabled)
 113         {
 114                 result = hash_round<64>(result, self.depth_test.compare);
 115                 result = hash_update<64>(result, self.depth_test.write);
 116         }
 117
 118         if(self.stencil_test.enabled)
 119         {
 120                 result = hash_round<64>(result, self.stencil_test.compare);
 121                 result = hash_round<64>(result, self.stencil_test.stencil_fail_op);
 122                 result = hash_round<64>(result, self.stencil_test.depth_fail_op);
 123                 result = hash_round<64>(result, self.stencil_test.depth_pass_op);
 124                 result = hash_update<64>(result, self.stencil_test.reference);
 125         }
 126
 127         if(self.blend.enabled)
 128         {
 129                 result = hash_round<64>(result, self.blend.equation);
 130                 result = hash_round<64>(result, self.blend.src_factor);
 131                 result = hash_round<64>(result, self.blend.dst_factor);
 132                 result = hash_round<64>(result, self.blend.write_mask);
 133         }
 134
 135         for(FrameAttachment a: format)
 136                 result = hash_update<64>(result, a);
 137
 138         return result;
 139 }
 140
 141 void VulkanPipelineState::fill_creation_info(vector<char> &buffer) const
 142 {
 143         const PipelineState &self = *static_cast<const PipelineState *>(this);
 144
 145         const FrameFormat &format = self.framebuffer->get_format();
 146         VkRenderPass render_pass = device.get_pipeline_cache().get_render_pass(format, false, false, false);
 147
 148         unsigned n_color_attachments = 0;
 149         for(FrameAttachment a: format)
 150         {
 151                 unsigned attach_pt = get_attach_point(a);
 152                 if(attach_pt!=get_attach_point(DEPTH_ATTACHMENT) && attach_pt!=get_attach_point(STENCIL_ATTACHMENT))
 153                         ++n_color_attachments;
 154         }
 155
 156         StructureBuilder sb(buffer, 10);
 157         VkGraphicsPipelineCreateInfo *&pipeline_info = sb.add<VkGraphicsPipelineCreateInfo>();
 158         VkPipelineInputAssemblyStateCreateInfo *&input_assembly_info = sb.add<VkPipelineInputAssemblyStateCreateInfo>();
 159         VkPipelineViewportStateCreateInfo *&viewport_info = sb.add<VkPipelineViewportStateCreateInfo>();
 160         VkPipelineRasterizationStateCreateInfo *&raster_info = sb.add<VkPipelineRasterizationStateCreateInfo>();
 161         VkPipelineMultisampleStateCreateInfo *&multisample_info = sb.add<VkPipelineMultisampleStateCreateInfo>();
 162         VkPipelineDepthStencilStateCreateInfo *&depth_stencil_info = sb.add<VkPipelineDepthStencilStateCreateInfo>();
 163         VkPipelineColorBlendStateCreateInfo *&blend_info = sb.add<VkPipelineColorBlendStateCreateInfo>();
 164         VkPipelineColorBlendAttachmentState *&blend_attachments = sb.add<VkPipelineColorBlendAttachmentState>(n_color_attachments);
 165         VkPipelineDynamicStateCreateInfo *&dynamic_info = sb.add<VkPipelineDynamicStateCreateInfo>();
 166         VkDynamicState *&dynamic_states = sb.add<VkDynamicState>(2);
 167
 168         input_assembly_info->sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
 169         input_assembly_info->topology = static_cast<VkPrimitiveTopology>(get_vulkan_primitive_type(self.primitive_type));
 170         input_assembly_info->primitiveRestartEnable = true;
 171
 172         viewport_info->sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
 173         viewport_info->viewportCount = 1;
 174         viewport_info->pViewports = 0;
 175         viewport_info->scissorCount = 1;
 176         viewport_info->pScissors = 0;
 177
 178         raster_info->sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
 179         raster_info->depthClampEnable = VK_FALSE;
 180         raster_info->rasterizerDiscardEnable = VK_FALSE;
 181         raster_info->polygonMode = VK_POLYGON_MODE_FILL;
 182         raster_info->frontFace = (self.front_face==CLOCKWISE ? VK_FRONT_FACE_COUNTER_CLOCKWISE : VK_FRONT_FACE_CLOCKWISE);
 183         if(self.face_cull==NO_CULL || self.front_face==NON_MANIFOLD)
 184                 raster_info->cullMode = VK_CULL_MODE_NONE;
 185         else
 186                 raster_info->cullMode = (self.face_cull==CULL_FRONT ? VK_CULL_MODE_FRONT_BIT : VK_CULL_MODE_BACK_BIT);
 187         raster_info->depthBiasEnable = VK_FALSE;
 188         raster_info->depthBiasConstantFactor = 0.0f;
 189         raster_info->depthBiasClamp = 0.0f;
 190         raster_info->depthBiasSlopeFactor = 0.0f;
 191         raster_info->lineWidth = 1.0f;
 192
 193         multisample_info->sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
 194         multisample_info->rasterizationSamples = static_cast<VkSampleCountFlagBits>(get_vulkan_samples(format.get_samples()));
 195         multisample_info->sampleShadingEnable = VK_FALSE;
 196         multisample_info->minSampleShading = 1.0f;
 197         multisample_info->pSampleMask = 0;
 198         multisample_info->alphaToCoverageEnable = VK_FALSE;
 199         multisample_info->alphaToOneEnable = VK_FALSE;
 200
 201         depth_stencil_info->sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO;
 202         depth_stencil_info->depthTestEnable = self.depth_test.enabled;
 203         depth_stencil_info->depthWriteEnable = self.depth_test.write;
 204         depth_stencil_info->depthCompareOp = static_cast<VkCompareOp>(get_vulkan_predicate(self.depth_test.compare));
 205         depth_stencil_info->depthBoundsTestEnable = VK_FALSE;
 206
 207         depth_stencil_info->stencilTestEnable = self.stencil_test.enabled;
 208         depth_stencil_info->front.failOp = static_cast<VkStencilOp>(get_vulkan_stencil_op(self.stencil_test.stencil_fail_op));
 209         depth_stencil_info->front.passOp = static_cast<VkStencilOp>(get_vulkan_stencil_op(self.stencil_test.depth_pass_op));
 210         depth_stencil_info->front.depthFailOp = static_cast<VkStencilOp>(get_vulkan_stencil_op(self.stencil_test.depth_fail_op));
 211         depth_stencil_info->front.compareOp = static_cast<VkCompareOp>(get_vulkan_predicate(self.stencil_test.compare));
 212         depth_stencil_info->front.compareMask = 0xFFFFFFFFU;
 213         depth_stencil_info->front.writeMask = 0xFFFFFFFFU;
 214         depth_stencil_info->front.reference = self.stencil_test.reference;
 215         depth_stencil_info->back = depth_stencil_info->front;
 216
 217         for(unsigned i=0; i<n_color_attachments; ++i)
 218         {
 219                 blend_attachments[i].blendEnable = self.blend.enabled;
 220                 blend_attachments[i].srcColorBlendFactor = static_cast<VkBlendFactor>(get_vulkan_blend_factor(self.blend.src_factor));
 221                 blend_attachments[i].dstColorBlendFactor = static_cast<VkBlendFactor>(get_vulkan_blend_factor(self.blend.dst_factor));
 222                 blend_attachments[i].colorBlendOp = static_cast<VkBlendOp>(get_vulkan_blend_equation(self.blend.equation));
 223                 blend_attachments[i].srcAlphaBlendFactor = blend_attachments[i].srcColorBlendFactor;
 224                 blend_attachments[i].dstAlphaBlendFactor = blend_attachments[i].dstColorBlendFactor;
 225                 blend_attachments[i].alphaBlendOp = blend_attachments[i].colorBlendOp;
 226                 blend_attachments[i].colorWriteMask = get_vulkan_color_mask(self.blend.write_mask);
 227         }
 228
 229         blend_info->sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
 230         blend_info->attachmentCount = n_color_attachments;
 231         blend_info->pAttachments = blend_attachments;
 232
 233         dynamic_states[0] = VK_DYNAMIC_STATE_VIEWPORT;
 234         dynamic_states[1] = VK_DYNAMIC_STATE_SCISSOR;
 235
 236         dynamic_info->sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
 237         dynamic_info->dynamicStateCount = 2;
 238         dynamic_info->pDynamicStates = dynamic_states;
 239
 240         pipeline_info->sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
 241
 242         pipeline_info->pInputAssemblyState = input_assembly_info;
 243         pipeline_info->pTessellationState = 0;
 244         pipeline_info->pViewportState = viewport_info;
 245         pipeline_info->pRasterizationState = raster_info;
 246         pipeline_info->pMultisampleState = multisample_info;
 247         pipeline_info->pDepthStencilState = depth_stencil_info;
 248         pipeline_info->pColorBlendState = blend_info;
 249         pipeline_info->pDynamicState = dynamic_info;
 250         pipeline_info->renderPass = handle_cast<::VkRenderPass>(render_pass);
 251         pipeline_info->subpass = 0;
 252
 253         if(self.shprog)
 254         {
 255                 pipeline_info->stageCount = self.shprog->n_stages;
 256                 pipeline_info->pStages = reinterpret_cast<const VkPipelineShaderStageCreateInfo *>(self.shprog->creation_info.data());
 257                 pipeline_info->layout = handle_cast<::VkPipelineLayout>(self.shprog->layout_handle);
 258         }
 259
 260         if(self.vertex_setup)
 261                 pipeline_info->pVertexInputState = reinterpret_cast<const VkPipelineVertexInputStateCreateInfo *>(self.vertex_setup->creation_info.data());
 262 }
 263
 264 uint64_t VulkanPipelineState::compute_descriptor_set_hash(unsigned index) const
 265 {
 266         const PipelineState &self = *static_cast<const PipelineState *>(this);
 267
 268         uint64_t result = hash<64>(0, 0);
 269
 270         auto i = lower_bound_member(self.uniform_blocks, static_cast<int>(index)<<20, &PipelineState::BoundUniformBlock::binding);
 271         for(; (i!=self.uniform_blocks.end() && static_cast<unsigned>(i->binding)>>20==index); ++i)
 272                 if(i->used)
 273                 {
 274                         result = hash_update<64>(result, i->binding);
 275                         result = hash_update<64>(result, reinterpret_cast<uintptr_t>(i->block));
 276                         result = hash_update<64>(result, reinterpret_cast<uintptr_t>(i->buffer->handle));
 277                 }
 278
 279         auto j = lower_bound_member(self.textures, index<<20, &PipelineState::BoundTexture::binding);
 280         for(; (j!=self.textures.end() && j->binding>>20==index); ++j)
 281                 if(j->used)
 282                 {
 283                         result = hash_update<64>(result, j->binding);
 284                         result = hash_update<64>(result, reinterpret_cast<uintptr_t>(j->texture->handle));
 285                         result = hash_update<64>(result, reinterpret_cast<uintptr_t>(j->sampler->handle));
 286                         result = hash_update<64>(result, j->level);
 287                 }
 288
 289         return result;
 290 }
 291
 292 bool VulkanPipelineState::is_descriptor_set_dynamic(unsigned index) const
 293 {
 294         const PipelineState &self = *static_cast<const PipelineState *>(this);
 295
 296         auto i = lower_bound_member(self.uniform_blocks, static_cast<int>(index)<<20, &PipelineState::BoundUniformBlock::binding);
 297         for(; (i!=self.uniform_blocks.end() && static_cast<unsigned>(i->binding)>>20==index); ++i)
 298                 if(i->used && i->buffer && i->buffer->get_usage()==STREAMING)
 299                         return true;
 300
 301         return false;
 302 }
 303
 304 VkDescriptorSetLayout VulkanPipelineState::get_descriptor_set_layout(unsigned index) const
 305 {
 306         return static_cast<const PipelineState *>(this)->shprog->desc_set_layout_handles[index];
 307 }
 308
 309 unsigned VulkanPipelineState::fill_descriptor_writes(unsigned index, unsigned frame, vector<char> &buffer) const
 310 {
 311         const PipelineState &self = *static_cast<const PipelineState *>(this);
 312
 313         auto u_begin = lower_bound_member(self.uniform_blocks, static_cast<int>(index)<<20, &PipelineState::BoundUniformBlock::binding);
 314         auto t_begin = lower_bound_member(self.textures, index<<20, &PipelineState::BoundTexture::binding);
 315
 316         unsigned n_buffers = 0;
 317         for(auto i=u_begin; (i!=self.uniform_blocks.end() && static_cast<unsigned>(i->binding)>>20==index); ++i)
 318                 if(i->used)
 319                         ++n_buffers;
 320         unsigned n_images = 0;
 321         for(auto i=t_begin; (i!=self.textures.end() && i->binding>>20==index); ++i)
 322                 if(i->used)
 323                         ++n_images;
 324         unsigned n_writes = n_buffers+n_images;
 325
 326         StructureBuilder sb(buffer, 3);
 327         VkWriteDescriptorSet *&writes = sb.add<VkWriteDescriptorSet>(n_writes);
 328         VkDescriptorBufferInfo *&buffers = sb.add<VkDescriptorBufferInfo>(n_buffers);
 329         VkDescriptorImageInfo *&images = sb.add<VkDescriptorImageInfo>(n_images);
 330
 331         VkWriteDescriptorSet *write_ptr = writes;
 332         VkDescriptorBufferInfo *buffer_ptr = buffers;
 333         VkDescriptorImageInfo *image_ptr = images;
 334
 335         for(auto i=u_begin; (i!=self.uniform_blocks.end() && static_cast<unsigned>(i->binding)>>20==index); ++i)
 336                 if(i->used)
 337                 {
 338                         buffer_ptr->buffer = handle_cast<::VkBuffer>(i->buffer->handle);
 339                         buffer_ptr->offset = i->block->get_offset();
 340                         if(i->buffer->get_usage()==STREAMING)
 341                                 buffer_ptr->offset += frame*i->buffer->get_size();
 342                         buffer_ptr->range = i->block->get_data_size();
 343
 344                         write_ptr->sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
 345                         write_ptr->dstBinding = i->binding&0xFFFFF;
 346                         write_ptr->descriptorCount = 1;
 347                         write_ptr->descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
 348                         write_ptr->pBufferInfo = buffer_ptr;
 349
 350                         ++buffer_ptr;
 351                         ++write_ptr;
 352                 }
 353
 354         for(auto i=t_begin; (i!=self.textures.end() && i->binding>>20==index); ++i)
 355                 if(i->used)
 356                 {
 357                         image_ptr->sampler = handle_cast<::VkSampler>(i->sampler->handle);
 358                         if(i->level<0)
 359                                 image_ptr->imageView = handle_cast<::VkImageView>(i->texture->view_handle);
 360                         else
 361                                 image_ptr->imageView = handle_cast<::VkImageView>(i->texture->mip_view_handles[i->level]);
 362                         image_ptr->imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
 363
 364                         write_ptr->sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
 365                         write_ptr->dstBinding = i->binding&0xFFFFF;
 366                         write_ptr->descriptorCount = 1;
 367                         write_ptr->descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
 368                         write_ptr->pImageInfo = image_ptr;
 369
 370                         ++image_ptr;
 371                         ++write_ptr;
 372                 }
 373
 374         return n_writes;
 375 }
 376
 377 void VulkanPipelineState::apply(VkCommandBuffer command_buffer, const VulkanPipelineState *last, unsigned frame, bool negative_viewport) const
 378 {
 379         const PipelineState &self = *static_cast<const PipelineState *>(this);
 380         const VulkanFunctions &vk = device.get_functions();
 381
 382         if(!last)
 383         {
 384                 unapplied = ~0U;
 385                 first_changed_desc_set = 0;
 386         }
 387         else if(last!=this)
 388         {
 389                 const PipelineState &last_ps = *static_cast<const PipelineState *>(last);
 390                 if(handle!=last->handle)
 391                         unapplied |= PipelineState::SHPROG;
 392                 if(self.vertex_setup!=last_ps.vertex_setup)
 393                         unapplied |= PipelineState::VERTEX_SETUP;
 394                 for(unsigned i=0; i<descriptor_set_slots.size(); ++i)
 395                         if(i>=last->descriptor_set_slots.size() || descriptor_set_slots[i]!=last->descriptor_set_slots[i])
 396                         {
 397                                 unapplied |= PipelineState::UNIFORMS;
 398                                 first_changed_desc_set = min(first_changed_desc_set, i);
 399                                 break;
 400                         }
 401                 if(self.viewport!=last_ps.viewport)
 402                         unapplied |= PipelineState::VIEWPORT;
 403                 if(self.scissor!=last_ps.scissor)
 404                         unapplied |= PipelineState::SCISSOR;
 405         }
 406
 407         if(unapplied&PipelineState::SHPROG)
 408                 vk.CmdBindPipeline(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, handle);
 409
 410         if(unapplied&PipelineState::VERTEX_SETUP)
 411                 if(const VertexSetup *vs = self.vertex_setup)
 412                 {
 413                         vk.CmdBindVertexBuffers(command_buffer, 0, vs->n_bindings, vs->buffers, vs->offsets);
 414                         VkIndexType index_type = static_cast<VkIndexType>(get_vulkan_index_type(vs->get_index_type()));
 415                         vk.CmdBindIndexBuffer(command_buffer, vs->get_index_buffer()->handle, 0, index_type);
 416                 }
 417
 418         if(!self.uniform_blocks.empty())
 419         {
 420                 const PipelineState::BoundUniformBlock &first_block = self.uniform_blocks.front();
 421                 if(first_block.used && first_block.binding==ReflectData::PUSH_CONSTANT)
 422                 {
 423                         const UniformBlock &pc_block = *first_block.block;
 424                         vk.CmdPushConstants(command_buffer, self.shprog->layout_handle, self.shprog->stage_flags,
 425                                 pc_block.get_offset(), pc_block.get_data_size(), pc_block.get_data_pointer());
 426                 }
 427         }
 428
 429         if((unapplied&PipelineState::UNIFORMS) && !descriptor_set_slots.empty())
 430         {
 431                 vector<VkDescriptorSet> descriptor_set_handles;
 432                 descriptor_set_handles.reserve(descriptor_set_slots.size()-first_changed_desc_set);
 433                 for(unsigned i=first_changed_desc_set; i<descriptor_set_slots.size(); ++i)
 434                         descriptor_set_handles.push_back(device.get_descriptor_pool().get_descriptor_set(
 435                                 self.descriptor_set_slots[i], self, i, frame));
 436
 437                 vk.CmdBindDescriptorSets(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, self.shprog->layout_handle,
 438                         first_changed_desc_set, descriptor_set_handles.size(), descriptor_set_handles.data(), 0, 0);
 439         }
 440
 441         if(unapplied&(PipelineState::VIEWPORT|PipelineState::SCISSOR))
 442         {
 443                 Rect fb_rect = self.framebuffer->get_rect();
 444
 445                 if(unapplied&PipelineState::VIEWPORT)
 446                 {
 447                         Rect viewport_rect = fb_rect.intersect(self.viewport);
 448                         VkViewport viewport = { };
 449                         viewport.x = viewport_rect.left;
 450                         viewport.y = viewport_rect.bottom;
 451                         viewport.width = viewport_rect.width;
 452                         viewport.height = viewport_rect.height;
 453                         if(negative_viewport)
 454                         {
 455                                 viewport.y += viewport.height;
 456                                 viewport.height = -viewport.height;
 457                         }
 458                         viewport.minDepth = 0.0f;
 459                         viewport.maxDepth = 1.0f;
 460                         vk.CmdSetViewport(command_buffer, 0, 1, &viewport);
 461                 }
 462
 463                 if(unapplied&PipelineState::SCISSOR)
 464                 {
 465                         Rect scissor_rect = fb_rect.intersect(self.scissor);
 466                         VkRect2D scissor = { };
 467                         scissor.offset.x = scissor_rect.left;
 468                         scissor.offset.y = scissor_rect.bottom;
 469                         scissor.extent.width = scissor_rect.width;
 470                         scissor.extent.height = scissor_rect.height;
 471                         vk.CmdSetScissor(command_buffer, 0, 1, &scissor);
 472                 }
 473         }
 474
 475         unapplied = 0;
 476         first_changed_desc_set = descriptor_set_slots.size();
 477 }
 478
 479 } // namespace GL
 480 } // namespace Msp