Function GetWritablePixels

source/core/textures/tiletexture.cpp:278–293

//==========================================================================

uint8_t* GetWritablePixels(FTextureID texid, bool reload)
{
	if (!texid.isValid()) return nullptr;
	auto gtex = TexMan.GetGameTexture(texid);
	auto tex = dynamic_cast<FImageTexture*>(gtex->GetTexture());

	if (!tex || !tex->GetImage()) return nullptr;
	auto timg = dynamic_cast<FWritableTile*>(tex->GetImage());
	if (!timg) return nullptr;

	if (reload)
		timg->Reload();

	gtex->CleanHardwareData();	// we can safely assume that this only gets called when the texture is about to be changed.
	return timg->GetRawData();
}


//==========================================================================