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// Copyright 2009 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "VideoBackends/Software/SWRenderer.h"
#include <string>
#include "Common/CommonTypes.h"
#include "Common/MsgHandler.h"
#include "Core/HW/Memmap.h"
#include "Core/System.h"
#include "VideoBackends/Software/EfbInterface.h"
#include "VideoCommon/PixelEngine.h"
#include "VideoCommon/VideoBackendBase.h"
namespace SW
{
u32 SWRenderer::AccessEFB(EFBAccessType type, u32 x, u32 y, u32 InputData)
{
u32 value = 0;
switch (type)
{
case EFBAccessType::PeekZ:
{
value = EfbInterface::GetDepth(x, y);
break;
}
case EFBAccessType::PeekColor:
{
const u32 color = EfbInterface::GetColor(x, y);
// rgba to argb
value = (color >> 8) | (color & 0xff) << 24;
// check what to do with the alpha channel (GX_PokeAlphaRead)
PixelEngine::AlphaReadMode alpha_read_mode =
Core::System::GetInstance().GetPixelEngine().GetAlphaReadMode();
if (alpha_read_mode == PixelEngine::AlphaReadMode::ReadNone)
{
// value is OK as it is
}
else if (alpha_read_mode == PixelEngine::AlphaReadMode::ReadFF)
{
value |= 0xFF000000;
}
else
{
if (alpha_read_mode != PixelEngine::AlphaReadMode::Read00)
{
PanicAlertFmt("Invalid PE alpha read mode: {}", static_cast<u16>(alpha_read_mode));
}
value &= 0x00FFFFFF;
}
break;
}
default:
break;
}
return value;
}
} // namespace SW
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