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-rw-r--r--dom/webgpu/RenderPassEncoder.cpp330
1 files changed, 330 insertions, 0 deletions
diff --git a/dom/webgpu/RenderPassEncoder.cpp b/dom/webgpu/RenderPassEncoder.cpp
new file mode 100644
index 0000000000..9f5a311415
--- /dev/null
+++ b/dom/webgpu/RenderPassEncoder.cpp
@@ -0,0 +1,330 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/dom/WebGPUBinding.h"
+#include "RenderPassEncoder.h"
+#include "BindGroup.h"
+#include "CommandEncoder.h"
+#include "RenderBundle.h"
+#include "RenderPipeline.h"
+#include "mozilla/webgpu/ffi/wgpu.h"
+
+namespace mozilla::webgpu {
+
+GPU_IMPL_CYCLE_COLLECTION(RenderPassEncoder, mParent, mUsedBindGroups,
+ mUsedBuffers, mUsedPipelines, mUsedTextureViews,
+ mUsedRenderBundles)
+GPU_IMPL_JS_WRAP(RenderPassEncoder)
+
+ffi::WGPURenderPass* ScopedFfiRenderTraits::empty() { return nullptr; }
+
+void ScopedFfiRenderTraits::release(ffi::WGPURenderPass* raw) {
+ if (raw) {
+ ffi::wgpu_render_pass_destroy(raw);
+ }
+}
+
+static ffi::WGPULoadOp ConvertLoadOp(const dom::GPULoadOp& aOp) {
+ switch (aOp) {
+ case dom::GPULoadOp::Load:
+ return ffi::WGPULoadOp_Load;
+ case dom::GPULoadOp::Clear:
+ return ffi::WGPULoadOp_Clear;
+ case dom::GPULoadOp::EndGuard_:
+ break;
+ }
+ MOZ_CRASH("bad GPULoadOp");
+}
+
+static ffi::WGPUStoreOp ConvertStoreOp(const dom::GPUStoreOp& aOp) {
+ switch (aOp) {
+ case dom::GPUStoreOp::Store:
+ return ffi::WGPUStoreOp_Store;
+ case dom::GPUStoreOp::Discard:
+ return ffi::WGPUStoreOp_Discard;
+ case dom::GPUStoreOp::EndGuard_:
+ break;
+ }
+ MOZ_CRASH("bad GPUStoreOp");
+}
+
+static ffi::WGPUColor ConvertColor(const dom::Sequence<double>& aSeq) {
+ ffi::WGPUColor color;
+ color.r = aSeq.SafeElementAt(0, 0.0);
+ color.g = aSeq.SafeElementAt(1, 0.0);
+ color.b = aSeq.SafeElementAt(2, 0.0);
+ color.a = aSeq.SafeElementAt(3, 1.0);
+ return color;
+}
+
+static ffi::WGPUColor ConvertColor(const dom::GPUColorDict& aColor) {
+ ffi::WGPUColor color = {aColor.mR, aColor.mG, aColor.mB, aColor.mA};
+ return color;
+}
+
+static ffi::WGPUColor ConvertColor(
+ const dom::DoubleSequenceOrGPUColorDict& aColor) {
+ if (aColor.IsDoubleSequence()) {
+ return ConvertColor(aColor.GetAsDoubleSequence());
+ }
+ if (aColor.IsGPUColorDict()) {
+ return ConvertColor(aColor.GetAsGPUColorDict());
+ }
+ MOZ_ASSERT_UNREACHABLE(
+ "Unexpected dom::DoubleSequenceOrGPUColorDict variant");
+ return ffi::WGPUColor();
+}
+static ffi::WGPUColor ConvertColor(
+ const dom::OwningDoubleSequenceOrGPUColorDict& aColor) {
+ if (aColor.IsDoubleSequence()) {
+ return ConvertColor(aColor.GetAsDoubleSequence());
+ }
+ if (aColor.IsGPUColorDict()) {
+ return ConvertColor(aColor.GetAsGPUColorDict());
+ }
+ MOZ_ASSERT_UNREACHABLE(
+ "Unexpected dom::OwningDoubleSequenceOrGPUColorDict variant");
+ return ffi::WGPUColor();
+}
+
+ffi::WGPURenderPass* BeginRenderPass(
+ CommandEncoder* const aParent, const dom::GPURenderPassDescriptor& aDesc) {
+ ffi::WGPURenderPassDescriptor desc = {};
+
+ webgpu::StringHelper label(aDesc.mLabel);
+ desc.label = label.Get();
+
+ ffi::WGPURenderPassDepthStencilAttachment dsDesc = {};
+ if (aDesc.mDepthStencilAttachment.WasPassed()) {
+ const auto& dsa = aDesc.mDepthStencilAttachment.Value();
+ dsDesc.view = dsa.mView->mId;
+
+ // -
+
+ if (dsa.mDepthClearValue.WasPassed()) {
+ dsDesc.depth.clear_value = dsa.mDepthClearValue.Value();
+ }
+ if (dsa.mDepthLoadOp.WasPassed()) {
+ dsDesc.depth.load_op = ConvertLoadOp(dsa.mDepthLoadOp.Value());
+ }
+ if (dsa.mDepthStoreOp.WasPassed()) {
+ dsDesc.depth.store_op = ConvertStoreOp(dsa.mDepthStoreOp.Value());
+ }
+ dsDesc.depth.read_only = dsa.mDepthReadOnly;
+
+ // -
+
+ dsDesc.stencil.clear_value = dsa.mStencilClearValue;
+ if (dsa.mStencilLoadOp.WasPassed()) {
+ dsDesc.stencil.load_op = ConvertLoadOp(dsa.mStencilLoadOp.Value());
+ }
+ if (dsa.mStencilStoreOp.WasPassed()) {
+ dsDesc.stencil.store_op = ConvertStoreOp(dsa.mStencilStoreOp.Value());
+ }
+ dsDesc.stencil.read_only = dsa.mStencilReadOnly;
+
+ // -
+
+ desc.depth_stencil_attachment = &dsDesc;
+ }
+
+ if (aDesc.mColorAttachments.Length() > WGPUMAX_COLOR_ATTACHMENTS) {
+ aParent->GetDevice()->GenerateError(nsLiteralCString(
+ "Too many color attachments in GPURenderPassDescriptor"));
+ return nullptr;
+ }
+
+ std::array<ffi::WGPURenderPassColorAttachment, WGPUMAX_COLOR_ATTACHMENTS>
+ colorDescs = {};
+ desc.color_attachments = colorDescs.data();
+ desc.color_attachments_length = aDesc.mColorAttachments.Length();
+
+ for (size_t i = 0; i < aDesc.mColorAttachments.Length(); ++i) {
+ const auto& ca = aDesc.mColorAttachments[i];
+ ffi::WGPURenderPassColorAttachment& cd = colorDescs[i];
+ cd.view = ca.mView->mId;
+ cd.channel.store_op = ConvertStoreOp(ca.mStoreOp);
+
+ if (ca.mResolveTarget.WasPassed()) {
+ cd.resolve_target = ca.mResolveTarget.Value().mId;
+ }
+
+ cd.channel.load_op = ConvertLoadOp(ca.mLoadOp);
+ if (ca.mClearValue.WasPassed()) {
+ cd.channel.clear_value = ConvertColor(ca.mClearValue.Value());
+ }
+ }
+
+ return ffi::wgpu_command_encoder_begin_render_pass(aParent->mId, &desc);
+}
+
+RenderPassEncoder::RenderPassEncoder(CommandEncoder* const aParent,
+ const dom::GPURenderPassDescriptor& aDesc)
+ : ChildOf(aParent), mPass(BeginRenderPass(aParent, aDesc)) {
+ if (!mPass) {
+ mValid = false;
+ return;
+ }
+
+ for (const auto& at : aDesc.mColorAttachments) {
+ mUsedTextureViews.AppendElement(at.mView);
+ }
+ if (aDesc.mDepthStencilAttachment.WasPassed()) {
+ mUsedTextureViews.AppendElement(
+ aDesc.mDepthStencilAttachment.Value().mView);
+ }
+}
+
+RenderPassEncoder::~RenderPassEncoder() {
+ if (mValid) {
+ mValid = false;
+ }
+}
+
+void RenderPassEncoder::SetBindGroup(
+ uint32_t aSlot, const BindGroup& aBindGroup,
+ const dom::Sequence<uint32_t>& aDynamicOffsets) {
+ if (mValid) {
+ mUsedBindGroups.AppendElement(&aBindGroup);
+ ffi::wgpu_render_pass_set_bind_group(mPass, aSlot, aBindGroup.mId,
+ aDynamicOffsets.Elements(),
+ aDynamicOffsets.Length());
+ }
+}
+
+void RenderPassEncoder::SetPipeline(const RenderPipeline& aPipeline) {
+ if (mValid) {
+ mUsedPipelines.AppendElement(&aPipeline);
+ ffi::wgpu_render_pass_set_pipeline(mPass, aPipeline.mId);
+ }
+}
+
+void RenderPassEncoder::SetIndexBuffer(const Buffer& aBuffer,
+ const dom::GPUIndexFormat& aIndexFormat,
+ uint64_t aOffset, uint64_t aSize) {
+ if (mValid) {
+ mUsedBuffers.AppendElement(&aBuffer);
+ const auto iformat = aIndexFormat == dom::GPUIndexFormat::Uint32
+ ? ffi::WGPUIndexFormat_Uint32
+ : ffi::WGPUIndexFormat_Uint16;
+ ffi::wgpu_render_pass_set_index_buffer(mPass, aBuffer.mId, iformat, aOffset,
+ aSize);
+ }
+}
+
+void RenderPassEncoder::SetVertexBuffer(uint32_t aSlot, const Buffer& aBuffer,
+ uint64_t aOffset, uint64_t aSize) {
+ if (mValid) {
+ mUsedBuffers.AppendElement(&aBuffer);
+ ffi::wgpu_render_pass_set_vertex_buffer(mPass, aSlot, aBuffer.mId, aOffset,
+ aSize);
+ }
+}
+
+void RenderPassEncoder::Draw(uint32_t aVertexCount, uint32_t aInstanceCount,
+ uint32_t aFirstVertex, uint32_t aFirstInstance) {
+ if (mValid) {
+ ffi::wgpu_render_pass_draw(mPass, aVertexCount, aInstanceCount,
+ aFirstVertex, aFirstInstance);
+ }
+}
+
+void RenderPassEncoder::DrawIndexed(uint32_t aIndexCount,
+ uint32_t aInstanceCount,
+ uint32_t aFirstIndex, int32_t aBaseVertex,
+ uint32_t aFirstInstance) {
+ if (mValid) {
+ ffi::wgpu_render_pass_draw_indexed(mPass, aIndexCount, aInstanceCount,
+ aFirstIndex, aBaseVertex,
+ aFirstInstance);
+ }
+}
+
+void RenderPassEncoder::DrawIndirect(const Buffer& aIndirectBuffer,
+ uint64_t aIndirectOffset) {
+ if (mValid) {
+ ffi::wgpu_render_pass_draw_indirect(mPass, aIndirectBuffer.mId,
+ aIndirectOffset);
+ }
+}
+
+void RenderPassEncoder::DrawIndexedIndirect(const Buffer& aIndirectBuffer,
+ uint64_t aIndirectOffset) {
+ if (mValid) {
+ ffi::wgpu_render_pass_draw_indexed_indirect(mPass, aIndirectBuffer.mId,
+ aIndirectOffset);
+ }
+}
+
+void RenderPassEncoder::SetViewport(float x, float y, float width, float height,
+ float minDepth, float maxDepth) {
+ if (mValid) {
+ ffi::wgpu_render_pass_set_viewport(mPass, x, y, width, height, minDepth,
+ maxDepth);
+ }
+}
+
+void RenderPassEncoder::SetScissorRect(uint32_t x, uint32_t y, uint32_t width,
+ uint32_t height) {
+ if (mValid) {
+ ffi::wgpu_render_pass_set_scissor_rect(mPass, x, y, width, height);
+ }
+}
+
+void RenderPassEncoder::SetBlendConstant(
+ const dom::DoubleSequenceOrGPUColorDict& color) {
+ if (mValid) {
+ ffi::WGPUColor aColor = ConvertColor(color);
+ ffi::wgpu_render_pass_set_blend_constant(mPass, &aColor);
+ }
+}
+
+void RenderPassEncoder::SetStencilReference(uint32_t reference) {
+ if (mValid) {
+ ffi::wgpu_render_pass_set_stencil_reference(mPass, reference);
+ }
+}
+
+void RenderPassEncoder::ExecuteBundles(
+ const dom::Sequence<OwningNonNull<RenderBundle>>& aBundles) {
+ if (mValid) {
+ nsTArray<ffi::WGPURenderBundleId> renderBundles(aBundles.Length());
+ for (const auto& bundle : aBundles) {
+ mUsedRenderBundles.AppendElement(bundle);
+ renderBundles.AppendElement(bundle->mId);
+ }
+ ffi::wgpu_render_pass_execute_bundles(mPass, renderBundles.Elements(),
+ renderBundles.Length());
+ }
+}
+
+void RenderPassEncoder::PushDebugGroup(const nsAString& aString) {
+ if (mValid) {
+ const NS_ConvertUTF16toUTF8 utf8(aString);
+ ffi::wgpu_render_pass_push_debug_group(mPass, utf8.get(), 0);
+ }
+}
+void RenderPassEncoder::PopDebugGroup() {
+ if (mValid) {
+ ffi::wgpu_render_pass_pop_debug_group(mPass);
+ }
+}
+void RenderPassEncoder::InsertDebugMarker(const nsAString& aString) {
+ if (mValid) {
+ const NS_ConvertUTF16toUTF8 utf8(aString);
+ ffi::wgpu_render_pass_insert_debug_marker(mPass, utf8.get(), 0);
+ }
+}
+
+void RenderPassEncoder::End(ErrorResult& aRv) {
+ if (mValid) {
+ mValid = false;
+ auto* pass = mPass.forget();
+ MOZ_ASSERT(pass);
+ mParent->EndRenderPass(*pass, aRv);
+ }
+}
+
+} // namespace mozilla::webgpu