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 { }
  23
  24 // Cause the destructor of RefPtr<VulkanFunctions> to be emitted here
  25 VulkanDevice::~VulkanDevice()
  26 { }
  27
  28 Graphics::VulkanOptions VulkanDevice::create_default_options()
  29 {
  30         Graphics::VulkanOptions opts;
  31         opts.enable_geometry_shader = true;
  32 #ifdef DEBUG
  33         const char *disable_ptr = getenv("MSPGL_DISABLE_VALIDATION");
  34         if(disable_ptr && *disable_ptr)
  35                 opts.enable_validation = !lexical_cast<bool>(string(disable_ptr));
  36         else
  37                 opts.enable_validation = true;
  38         opts.enable_debug_report = true;
  39 #endif
  40         return opts;
  41 }
  42
  43 void VulkanDevice::fill_info()
  44 {
  45         DeviceInfo &info = static_cast<Device *>(this)->info;
  46
  47         VkPhysicalDeviceProperties props;
  48         functions->GetPhysicalDeviceProperties(props);
  49
  50         info.api_version.major = (props.apiVersion>>22)&0x7F;
  51         info.api_version.minor = (props.apiVersion>>12)&0x3FF;
  52
  53         DeviceLimits &limits = info.limits;
  54         limits.max_clip_planes = props.limits.maxClipDistances;
  55         limits.max_vertex_attributes = props.limits.maxVertexInputAttributes;
  56         limits.max_texture_bindings = props.limits.maxDescriptorSetSampledImages;
  57         limits.max_color_attachments = props.limits.maxColorAttachments;
  58         unsigned samples = props.limits.framebufferColorSampleCounts&props.limits.framebufferDepthSampleCounts&props.limits.framebufferStencilSampleCounts;
  59         if(samples&VK_SAMPLE_COUNT_64_BIT)
  60                 limits.max_samples = 64;
  61         else if(samples&VK_SAMPLE_COUNT_32_BIT)
  62                 limits.max_samples = 32;
  63         else if(samples&VK_SAMPLE_COUNT_16_BIT)
  64                 limits.max_samples = 16;
  65         else if(samples&VK_SAMPLE_COUNT_8_BIT)
  66                 limits.max_samples = 8;
  67         limits.max_uniform_bindings = props.limits.maxDescriptorSetUniformBuffers;
  68         limits.uniform_buffer_alignment = props.limits.minUniformBufferOffsetAlignment;
  69         limits.max_anisotropy = props.limits.maxSamplerAnisotropy;
  70
  71         info.glsl_features = SL::Features::from_api_version(info.api, info.api_version);
  72 }
  73
  74 } // namespace GL
  75 } // namespace Msp