XCEngine/engine/src/Rendering/SceneRenderFeaturePass.cpp

#include "Rendering/SceneRenderFeaturePass.h"

#include "Rendering/Graph/RenderGraph.h"

namespace XCEngine {
namespace Rendering {

bool SceneRenderFeaturePass::RecordRenderGraph(
    const SceneRenderFeaturePassRenderGraphContext& context) {
    SceneRenderFeaturePass* const featurePass = this;
    const Containers::String passName = context.passName;
    const RenderContext* const renderContext = &context.renderContext;
    const RenderSceneData* const sceneData = &context.sceneData;
    const RenderSurface surface = context.surface;
    const RenderSurface* const sourceSurface = context.sourceSurface;
    RHI::RHIResourceView* const sourceColorView = context.sourceColorView;
    const RHI::ResourceStates sourceColorState = context.sourceColorState;
    const std::vector<RenderGraphTextureHandle> colorTargets = context.colorTargets;
    const RenderGraphTextureHandle depthTarget = context.depthTarget;
    const bool clearAttachments = context.clearAttachments;
    bool* const executionSucceeded = context.executionSucceeded;
    const SceneRenderFeaturePassBeginCallback beginPassCallback = context.beginPassCallback;
    const SceneRenderFeaturePassEndCallback endPassCallback = context.endPassCallback;

    context.graphBuilder.AddRasterPass(
        passName,
        [featurePass,
         renderContext,
         sceneData,
         surface,
         sourceSurface,
         sourceColorView,
         sourceColorState,
         colorTargets,
         depthTarget,
         clearAttachments,
         executionSucceeded,
         beginPassCallback,
         endPassCallback](
            RenderGraphPassBuilder& passBuilder) {
            for (RenderGraphTextureHandle colorTarget : colorTargets) {
                if (colorTarget.IsValid()) {
                    passBuilder.WriteTexture(colorTarget);
                }
            }

            if (depthTarget.IsValid()) {
                passBuilder.WriteDepthTexture(depthTarget);
            }

            passBuilder.SetExecuteCallback(
                [featurePass,
                 renderContext,
                 sceneData,
                 surface,
                 sourceSurface,
                 sourceColorView,
                 sourceColorState,
                 clearAttachments,
                 executionSucceeded,
                 beginPassCallback,
                 endPassCallback](
                    const RenderGraphExecutionContext&) {
                    if (executionSucceeded != nullptr && !(*executionSucceeded)) {
                        return;
                    }

                    const FrameExecutionContext executionContext(
                        *renderContext,
                        surface,
                        *sceneData,
                        sourceSurface,
                        sourceColorView,
                        sourceColorState);
                    const RenderPassContext passContext =
                        BuildRenderPassContext(executionContext);
                    if (beginPassCallback &&
                        !beginPassCallback(passContext, clearAttachments)) {
                        if (executionSucceeded != nullptr) {
                            *executionSucceeded = false;
                        }
                        return;
                    }

                    const bool executeResult = featurePass->Execute(passContext);
                    if (endPassCallback) {
                        endPassCallback(passContext);
                    }

                    if (executionSucceeded != nullptr) {
                        *executionSucceeded = executeResult;
                    }
                });
        });
    return true;
}

} // namespace Rendering
} // namespace XCEngine