source/backends/vulkan/device_backend.cpp

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