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#ifndef LIVE_VIDEO_TEXTURE
#define LIVE_VIDEO_TEXTURE
#if ENABLE_WEBCAM
#include "BaseVideoTexture.h"
#include "Runtime/Graphics/Image.h"
#include "Runtime/Math/Color.h"
#include "Runtime/Scripting/ScriptingUtility.h"
#if UNITY_WINRT
#include <windows.foundation.h>
#endif
struct PlatformDependentWebCamTextureData;
enum WebCamFlags
{
kWebCamFrontFacing = 1,
};
struct MonoWebCamDevice
{
ScriptingStringPtr name;
int flags;
bool operator== (std::string const &other) const
{
std::string cppStr = scripting_cpp_string_for (name);
return cppStr == other;
}
};
typedef UNITY_VECTOR(kMemWebCam, MonoWebCamDevice) MonoWebCamDevices;
typedef MonoWebCamDevices::iterator MonoWebCamDevicesIter;
class WebCamTexture: public BaseVideoTexture
{
public:
REGISTER_DERIVED_CLASS (WebCamTexture, Texture)
WebCamTexture (MemLabelId label, ObjectCreationMode mode = kCreateObjectDefault)
: BaseVideoTexture(label, mode)
{
m_RequestedFPS = 0.0f;
m_RequestedWidth = 0;
m_RequestedHeight = 0;
m_IsCreated = false;
m_VT = NULL;
#if UNITY_WINRT
RunExactlyOnce();
#endif
}
static void InitializeClass ();
static void CleanupClass ();
virtual void Play();
virtual void Pause();
virtual void Stop ();
virtual void Update ();
#if UNITY_WP8
virtual void Suspend();
virtual void Resume();
#endif
void SetRequestedWidth (int width) { m_RequestedWidth = width; SetDirty(); }
int GetRequestedWidth () const { return m_RequestedWidth; }
void SetRequestedHeight (int width) { m_RequestedHeight = width; SetDirty(); }
int GetRequestedHeight () const { return m_RequestedHeight; }
void SetRequestedFPS (float fps) { m_RequestedFPS = fps; SetDirty(); }
float GetRequestedFPS () const { return m_RequestedFPS; }
void SetDevice (const std::string &name) { m_DeviceName = name; SetDirty(); }
std::string GetDevice() const;
static void GetDeviceNames (MonoWebCamDevices &devices, bool forceUpdate);
#if ENABLE_PROFILER || UNITY_EDITOR
virtual int GetStorageMemorySize() const { return 0; }
#endif
ColorRGBAf GetPixel (int x, int y) const;
bool GetPixels (int x, int y, int width, int height, ColorRGBAf* data) const;
bool GetPixels (int dstFormat, void *dstData, size_t dstSize) const;
#if UNITY_IPHONE || UNITY_ANDROID || UNITY_BLACKBERRY || UNITY_TIZEN
virtual int GetVideoRotationAngle() const;
#endif
#if UNITY_IPHONE || UNITY_BLACKBERRY
virtual bool IsVideoVerticallyMirrored() const;
#endif
private:
#if UNITY_WINRT
// C-tor helper. It is here to ensure that some invariants are satisfied from the moment
// the object is created, so we don't have to check and recheck the state all the time
void RunExactlyOnce();
#endif
void Create();
void Cleanup ();
public:
static void EnsureUniqueName (MonoWebCamDevice &device,
const MonoWebCamDevices &devs);
private:
int m_RequestedWidth;
int m_RequestedHeight;
float m_RequestedFPS;
std::string m_DeviceName;
bool m_IsCreated;
static void InitDeviceList();
int GetDeviceIdFromDeviceList(const std::string& name) const;
PlatformDependentWebCamTextureData *m_VT;
protected:
#if UNITY_IPHONE
virtual TextureFormat GetBufferTextureFormat() const { return kTexFormatBGRA32; }
virtual bool CanSetReadable(bool readable) const;
#endif
#if UNITY_BLACKBERRY || UNITY_TIZEN || UNITY_WP8
virtual TextureFormat GetBufferTextureFormat() const { return kTexFormatBGRA32; }
#endif
};
inline ColorRGBAf WebCamTexture::GetPixel (int x, int y) const
{
if (!m_IsCreated)
{
ErrorString ("Cannot get pixels when webcam is not running");
return ColorRGBAf(0,0,0,0);
}
if (!IsReadable())
{
ErrorString ("Cannot get pixels when webcam is non-readable");
return ColorRGBAf(0,0,0,0);
}
return GetImagePixel ((UInt8*)GetImageBuffer(), GetPaddedWidth(), GetPaddedHeight(), GetBufferTextureFormat(), static_cast<TextureWrapMode>(GetSettings().m_WrapMode), x, y);
}
inline bool WebCamTexture::GetPixels( int x, int y, int width, int height, ColorRGBAf* colors ) const
{
if (width == 0 || height == 0)
return true; // nothing to do
if (!m_IsCreated)
{
ErrorString ("Cannot get pixels when webcam is not running");
return false;
}
if (!IsReadable())
{
ErrorString ("Cannot get pixels when webcam is non-readable");
return false;
}
return GetImagePixelBlock ((UInt8*)GetImageBuffer(), GetPaddedWidth(), GetPaddedHeight(), GetBufferTextureFormat(), x, y, width, height, colors);
}
inline bool WebCamTexture::GetPixels (int dstFormat, void *dstData, size_t dstSize) const
{
size_t srcRowBytes = GetRowBytesFromWidthAndFormat(GetPaddedWidth(), GetBufferTextureFormat());
size_t dstRowBytes = GetRowBytesFromWidthAndFormat(GetDataWidth(), dstFormat);
if (dstSize < dstRowBytes * GetDataHeight())
{
ErrorString ("Buffer is too small to get image data");
return false;
}
ImageReference src (GetDataWidth(), GetDataHeight(), srcRowBytes, GetBufferTextureFormat(), (UInt8*)GetImageBuffer());
ImageReference dst (GetDataWidth(), GetDataHeight(), dstRowBytes, dstFormat, dstData);
dst.BlitImage( src );
return true;
}
inline int WebCamTexture::GetDeviceIdFromDeviceList(const std::string& name) const
{
MonoWebCamDevices names;
GetDeviceNames(names, false);
if(!name.empty())
{
for(int i = 0 ; i < names.size() ; i++)
{
if(names[i] == name)
return i;
}
ErrorString ("Cannot find webcam device "+name+".");
return -1;
}
else
{
// Return camera 0 as default
if(!names.empty())
return 0;
else
{
ErrorString ("No available webcams are found. Either there is no webcam connected, or they are all in use by other applications (like Skype).");
return -1;
}
}
}
inline std::string WebCamTexture::GetDevice() const
{
if(m_DeviceName.size() > 0)
{
return m_DeviceName;
}
else
{
MonoWebCamDevices names;
GetDeviceNames(names, false);
if(names.size() > 0)
return scripting_cpp_string_for(names[0].name);
else
return "no camera available.";
}
}
inline void WebCamTexture::EnsureUniqueName (MonoWebCamDevice &device,
MonoWebCamDevices const &devs)
{
int num = 0;
std::string testname = scripting_cpp_string_for (device.name);
while (true)
{
if (num > 0)
testname += Format (" %d", num);
if (std::find (devs.begin (), devs.end (), testname) == devs.end ())
{
device.name = scripting_string_new(testname.c_str ());
break;
}
num++;
}
}
#endif
#endif
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