source/backends/vulkan/device_backend.cpp

   1 #include <cstdlib>
   2 #include <msp/graphics/vulkancontext_platform.h>
   3 #include <msp/strings/lexicalcast.h>
   4 #include "device.h"
   5 #include "device_backend.h"
   6 #include "vulkan.h"
   7
   8 using namespace std;
   9
  10 namespace Msp {
  11 namespace GL {
  12
  13 VulkanDevice::VulkanDevice(Graphics::Window &wnd, const Graphics::VulkanOptions &opts):
  14         context(wnd, opts),
  15         device(handle_cast<VkDevice>(context.get_private().device)),
  16         graphics_queue(handle_cast<VkQueue>(context.get_private().graphics_queue)),
  17         functions(new VulkanFunctions(context)),
  18         allocator(*static_cast<Device *>(this)),
  19         destroy_queue(*static_cast<Device *>(this)),
  20         synchronizer(*static_cast<Device *>(this)),
  21         transfer_queue(*static_cast<Device *>(this)),
  22         pipeline_cache(*static_cast<Device *>(this)),
  23         descriptor_pool(*static_cast<Device *>(this))
  24 { }
  25
  26 // Cause the destructor of RefPtr<VulkanFunctions> to be emitted here
  27 VulkanDevice::~VulkanDevice()
  28 { }
  29
  30 Graphics::VulkanOptions VulkanDevice::create_default_options()
  31 {
  32         Graphics::VulkanOptions opts;
  33         opts.enable_geometry_shader = true;
  34 #ifdef DEBUG
  35         const char *disable_ptr = getenv("MSPGL_DISABLE_VALIDATION");
  36         if(disable_ptr && *disable_ptr)
  37                 opts.enable_validation = !lexical_cast<bool>(string(disable_ptr));
  38         else
  39                 opts.enable_validation = true;
  40         opts.enable_debug_report = true;
  41 #endif
  42         return opts;
  43 }
  44
  45 void VulkanDevice::fill_info()
  46 {
  47         DeviceInfo &info = static_cast<Device *>(this)->info;
  48
  49         VkPhysicalDeviceProperties props;
  50         functions->GetPhysicalDeviceProperties(props);
  51
  52         info.api_version.major = (props.apiVersion>>22)&0x7F;
  53         info.api_version.minor = (props.apiVersion>>12)&0x3FF;
  54
  55         DeviceLimits &limits = info.limits;
  56         limits.max_clip_planes = props.limits.maxClipDistances;
  57         limits.max_vertex_attributes = props.limits.maxVertexInputAttributes;
  58         limits.max_texture_bindings = props.limits.maxDescriptorSetSampledImages;
  59         limits.max_color_attachments = props.limits.maxColorAttachments;
  60         unsigned samples = props.limits.framebufferColorSampleCounts&props.limits.framebufferDepthSampleCounts&props.limits.framebufferStencilSampleCounts;
  61         if(samples&VK_SAMPLE_COUNT_64_BIT)
  62                 limits.max_samples = 64;
  63         else if(samples&VK_SAMPLE_COUNT_32_BIT)
  64                 limits.max_samples = 32;
  65         else if(samples&VK_SAMPLE_COUNT_16_BIT)
  66                 limits.max_samples = 16;
  67         else if(samples&VK_SAMPLE_COUNT_8_BIT)
  68                 limits.max_samples = 8;
  69         limits.max_uniform_bindings = props.limits.maxDescriptorSetUniformBuffers;
  70         limits.uniform_buffer_alignment = props.limits.minUniformBufferOffsetAlignment;
  71         limits.max_anisotropy = props.limits.maxSamplerAnisotropy;
  72
  73         info.glsl_features = SL::Features::from_api_version(info.api, info.api_version);
  74 }
  75
  76 } // namespace GL
  77 } // namespace Msp