layout: restructure into src/ tests/ android/ scripts/ tools/

- extension/src/{port,platform,codepage} -> src/; native_render -> src/host
  (+ dxt, shaders/); libgr2 -> src/gr2; extension/third_party -> third_party
- extension/tests -> tests/port, libgr2/tests -> tests/gr2
- android-native -> android (build.sh, push-client.sh moved in)
- script -> scripts; tools/40250 -> tools/server; oracle -> tools/granny-oracle;
  perf tools -> tools/perf
- all build trees under build/ (native, release, android, port-gate)
- xrender:: CMake aliases -> mt::; port-map ledger impl paths rewritten

No code changes. ctest 15/15, port_gate macos+android PASS, port_map check 0 errors.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/platform/EterLib/GrpImageInstance.cpp

@@ -0,0 +1,167 @@
+// Platform skeleton for EterLib/GrpImageInstance.h (40250 EterLib/GrpImageInstance.cpp), generated by platform_stub.py.
+// Every MT_PLATFORM_STUB() body is unimplemented: replace it with the platform implementation.
+#include "EterLib/StdAfx.h"
+#include "EterLib/GrpImageInstance.h"
+
+#include "../PlatformStub.h"
+#include "UIRenderCommands.h"
+#include "EterBase/CRC32.h"
+
+auto CGraphicImageInstance::Type() -> DWORD
+{
+	static DWORD type = GetCRC32("CGraphicImageInstance", sizeof("CGraphicImageInstance") - 1);
+	return type;
+}
+
+auto CGraphicImageInstance::IsType(DWORD type) -> BOOL
+{
+	return OnIsType(type);
+}
+
+CGraphicImageInstance::CGraphicImageInstance()
+{
+	m_DiffuseColor = D3DXCOLOR(1, 1, 1, 1);
+	m_v2Position = D3DXVECTOR2(0, 0);
+}
+
+CGraphicImageInstance::~CGraphicImageInstance()
+{
+	Destroy();
+}
+
+// 40250 Destroy(): drop the image reference, then Initialize() (white, at the origin).
+auto CGraphicImageInstance::Destroy() -> void
+{
+	m_roImage.Clear();
+	m_DiffuseColor = D3DXCOLOR(1, 1, 1, 1);
+	m_v2Position = D3DXVECTOR2(0, 0);
+}
+
+auto CGraphicImageInstance::Render() -> void
+{
+	if (!IsEmpty()) OnRender();
+}
+
+auto CGraphicImageInstance::SetDiffuseColor(float r, float g, float b, float a) -> void
+{
+	m_DiffuseColor = D3DXCOLOR(r, g, b, a);
+}
+
+auto CGraphicImageInstance::SetPosition(float x, float y) -> void
+{
+	m_v2Position = D3DXVECTOR2(x, y);
+}
+
+auto CGraphicImageInstance::SetImagePointer(CGraphicImage *image) -> void
+{
+	m_roImage.SetPointer(image);
+	OnSetImagePointer();
+}
+
+auto CGraphicImageInstance::ReloadImagePointer(CGraphicImage *) -> void
+{
+	MT_PLATFORM_STUB();
+}
+
+auto CGraphicImageInstance::IsEmpty() const -> bool
+{
+	return m_roImage.IsNull() || m_roImage->IsEmpty();
+}
+
+auto CGraphicImageInstance::GetWidth() -> int
+{
+	return IsEmpty() ? 0 : m_roImage->GetWidth();
+}
+
+auto CGraphicImageInstance::GetHeight() -> int
+{
+	return IsEmpty() ? 0 : m_roImage->GetHeight();
+}
+
+auto CGraphicImageInstance::GetTexturePointer() -> CGraphicTexture *
+{
+	CGraphicImage* pkImage = m_roImage.GetPointer();
+	return pkImage ? pkImage->GetTexturePointer() : NULL;
+}
+
+auto CGraphicImageInstance::GetTextureReference() const -> const CGraphicTexture &
+{
+	return m_roImage->GetTextureReference();
+}
+
+auto CGraphicImageInstance::GetGraphicImagePointer() -> CGraphicImage *
+{
+	return m_roImage.GetPointer();
+}
+
+auto CGraphicImageInstance::operator==(const CGraphicImageInstance &) const -> bool
+{
+	MT_PLATFORM_STUB();
+	return mt_platform_stub_return<bool>();
+}
+
+auto CGraphicImageInstance::Initialize() -> void
+{
+	MT_PLATFORM_STUB();
+}
+
+// 40250 GrpImageInstance.cpp:44-96: the image's rect inside its texture (a .sub shares its parent's)
+// becomes the texture coordinates of one quad.
+auto CGraphicImageInstance::OnRender() -> void
+{
+	CGraphicImage * pImage = m_roImage.GetPointer();
+	CGraphicTexture * pTexture = pImage->GetTexturePointer();
+	if (pTexture->GetWidth() <= 0 || pTexture->GetHeight() <= 0)
+		return;
+
+	float fimgWidth = pImage->GetWidth();
+	float fimgHeight = pImage->GetHeight();
+
+	const RECT& c_rRect = pImage->GetRectReference();
+	float texReverseWidth = 1.0f / float(pTexture->GetWidth());
+	float texReverseHeight = 1.0f / float(pTexture->GetHeight());
+	float su = c_rRect.left * texReverseWidth;
+	float sv = c_rRect.top * texReverseHeight;
+	float eu = (c_rRect.left + (c_rRect.right-c_rRect.left)) * texReverseWidth;
+	float ev = (c_rRect.top + (c_rRect.bottom-c_rRect.top)) * texReverseHeight;
+
+	const float x[4] = {m_v2Position.x-0.5f, m_v2Position.x + fimgWidth-0.5f,
+		m_v2Position.x-0.5f, m_v2Position.x + fimgWidth-0.5f};
+	const float y[4] = {m_v2Position.y-0.5f, m_v2Position.y-0.5f,
+		m_v2Position.y + fimgHeight-0.5f, m_v2Position.y + fimgHeight-0.5f};
+	UIRenderAddImage(pTexture, x, y, su, sv, eu, ev, UIRenderColor(m_DiffuseColor));
+}
+
+auto CGraphicImageInstance::OnSetImagePointer() -> void
+{
+	MT_PLATFORM_STUB();
+}
+
+auto CGraphicImageInstance::OnIsType(DWORD type) -> BOOL
+{
+	return type == Type();
+}
+
+auto CGraphicImageInstance::CreateSystem(UINT) -> void
+{
+	MT_PLATFORM_STUB();
+}
+
+auto CGraphicImageInstance::DestroySystem() -> void
+{
+	MT_PLATFORM_STUB();
+}
+
+auto CGraphicImageInstance::New() -> CGraphicImageInstance *
+{
+	return new CGraphicImageInstance();
+}
+
+auto CGraphicImageInstance::Delete(CGraphicImageInstance *instance) -> void
+{
+	if (!instance) return;
+	instance->Destroy();
+	delete instance;
+}
+
+decltype(CGraphicImageInstance::ms_kPool) CGraphicImageInstance::ms_kPool{};