shadPS4/src/shader_recompiler/backend/spirv/emit_spirv_special.cpp

// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later

#include "shader_recompiler/backend/spirv/emit_spirv_instructions.h"
#include "shader_recompiler/backend/spirv/spirv_emit_context.h"

namespace Shader::Backend::SPIRV {

void EmitPrologue(EmitContext& ctx) {
    ctx.DefineBufferOffsets();
}

void EmitEpilogue(EmitContext& ctx) {}

void EmitDiscard(EmitContext& ctx) {
    ctx.OpDemoteToHelperInvocationEXT();
}

void EmitDiscardCond(EmitContext& ctx, Id condition) {
    const Id kill_label{ctx.OpLabel()};
    const Id merge_label{ctx.OpLabel()};
    ctx.OpSelectionMerge(merge_label, spv::SelectionControlMask::MaskNone);
    ctx.OpBranchConditional(condition, kill_label, merge_label);
    ctx.AddLabel(kill_label);
    ctx.OpDemoteToHelperInvocationEXT();
    ctx.OpBranch(merge_label);
    ctx.AddLabel(merge_label);
}

void EmitEmitVertex(EmitContext& ctx, const IR::Value& stream) {
    throw NotImplementedException("Geometry streams");
}

void EmitEndPrimitive(EmitContext& ctx, const IR::Value& stream) {
    throw NotImplementedException("Geometry streams");
}

} // namespace Shader::Backend::SPIRV