dom/webgpu/Utility.cpp

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include "Utility.h"
   7 #include "mozilla/dom/WebGPUBinding.h"
   8 #include "mozilla/webgpu/ffi/wgpu.h"
   9 #include "mozilla/webgpu/WebGPUTypes.h"
  10
  11 namespace mozilla::webgpu {
  12
  13 template <typename E>
  14 void ConvertToExtent3D(const E& aExtent, ffi::WGPUExtent3d* aExtentFFI) {
  15   *aExtentFFI = {};
  16   if (aExtent.IsRangeEnforcedUnsignedLongSequence()) {
  17     const auto& seq = aExtent.GetAsRangeEnforcedUnsignedLongSequence();
  18     aExtentFFI->width = seq.Length() > 0 ? seq[0] : 0;
  19     aExtentFFI->height = seq.Length() > 1 ? seq[1] : 1;
  20     aExtentFFI->depth_or_array_layers = seq.Length() > 2 ? seq[2] : 1;
  21   } else if (aExtent.IsGPUExtent3DDict()) {
  22     const auto& dict = aExtent.GetAsGPUExtent3DDict();
  23     aExtentFFI->width = dict.mWidth;
  24     aExtentFFI->height = dict.mHeight;
  25     aExtentFFI->depth_or_array_layers = dict.mDepthOrArrayLayers;
  26   } else {
  27     MOZ_CRASH("Unexpected extent type");
  28   }
  29 }
  30
  31 void ConvertExtent3DToFFI(const dom::GPUExtent3D& aExtent,
  32                           ffi::WGPUExtent3d* aExtentFFI) {
  33   ConvertToExtent3D(aExtent, aExtentFFI);
  34 }
  35
  36 void ConvertExtent3DToFFI(const dom::OwningGPUExtent3D& aExtent,
  37                           ffi::WGPUExtent3d* aExtentFFI) {
  38   ConvertToExtent3D(aExtent, aExtentFFI);
  39 }
  40
  41 ffi::WGPUExtent3d ConvertExtent(const dom::GPUExtent3D& aExtent) {
  42   ffi::WGPUExtent3d extent = {};
  43   ConvertToExtent3D(aExtent, &extent);
  44   return extent;
  45 }
  46
  47 ffi::WGPUExtent3d ConvertExtent(const dom::OwningGPUExtent3D& aExtent) {
  48   ffi::WGPUExtent3d extent = {};
  49   ConvertToExtent3D(aExtent, &extent);
  50   return extent;
  51 }
  52
  53 }  // namespace mozilla::webgpu