Initial version of DeviceLimits implemented in d3d12, d3d11, vulkan and cuda (#2496)

1 files changed, 34 insertions, 0 deletions

diff --git a/tools/gfx/d3d12/d3d12-device.cpp b/tools/gfx/d3d12/d3d12-device.cpp
index ebb416c39..3c6a98c2b 100644
--- a/tools/gfx/d3d12/d3d12-device.cpp
+++ b/tools/gfx/d3d12/d3d12-device.cpp
@@ -725,6 +725,40 @@ Result DeviceImpl::initialize(const Desc& desc)
     // Retrieve timestamp frequency.
     m_resourceCommandQueue->m_d3dQueue->GetTimestampFrequency(&m_info.timestampFrequency);
 
+    // Get device limits.
+    {
+        DeviceLimits limits = {};
+        limits.maxTextureDimension1D = D3D12_REQ_TEXTURE1D_U_DIMENSION;
+        limits.maxTextureDimension2D = D3D12_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+        limits.maxTextureDimension3D = D3D12_REQ_TEXTURE3D_U_V_OR_W_DIMENSION;
+        limits.maxTextureDimensionCube = D3D12_REQ_TEXTURECUBE_DIMENSION;
+        limits.maxTextureArrayLayers = D3D12_REQ_TEXTURE2D_ARRAY_AXIS_DIMENSION;
+
+        limits.maxVertexInputElements = D3D12_IA_VERTEX_INPUT_STRUCTURE_ELEMENT_COUNT;
+        limits.maxVertexInputElementOffset = 256; // TODO
+        limits.maxVertexStreams = D3D12_IA_VERTEX_INPUT_RESOURCE_SLOT_COUNT;
+        limits.maxVertexStreamStride = D3D12_REQ_MULTI_ELEMENT_STRUCTURE_SIZE_IN_BYTES;
+
+        limits.maxComputeThreadsPerGroup = D3D12_CS_THREAD_GROUP_MAX_THREADS_PER_GROUP;
+        limits.maxComputeThreadGroupSize[0] = D3D12_CS_THREAD_GROUP_MAX_X;
+        limits.maxComputeThreadGroupSize[1] = D3D12_CS_THREAD_GROUP_MAX_Y;
+        limits.maxComputeThreadGroupSize[2] = D3D12_CS_THREAD_GROUP_MAX_Z;
+        limits.maxComputeDispatchThreadGroups[0] = D3D12_CS_DISPATCH_MAX_THREAD_GROUPS_PER_DIMENSION;
+        limits.maxComputeDispatchThreadGroups[1] = D3D12_CS_DISPATCH_MAX_THREAD_GROUPS_PER_DIMENSION;
+        limits.maxComputeDispatchThreadGroups[2] = D3D12_CS_DISPATCH_MAX_THREAD_GROUPS_PER_DIMENSION;
+
+        limits.maxViewports = D3D12_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE;
+        limits.maxViewportDimensions[0] = D3D12_VIEWPORT_BOUNDS_MAX;
+        limits.maxViewportDimensions[1] = D3D12_VIEWPORT_BOUNDS_MAX;
+        limits.maxFramebufferDimensions[0] = D3D12_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+        limits.maxFramebufferDimensions[1] = D3D12_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+        limits.maxFramebufferDimensions[2] = 1;
+
+        limits.maxShaderVisibleSamplers = D3D12_MAX_SHADER_VISIBLE_SAMPLER_HEAP_SIZE;
+
+        m_info.limits = limits;
+    }
+
     SLANG_RETURN_ON_FAIL(createTransientResourceHeapImpl(
         ITransientResourceHeap::Flags::AllowResizing,
         0,