示例#1
0
void Render() {
  struct PP_Size* psize = &g_Context.size;
  PP_ImageDataFormat format = PP_IMAGEDATAFORMAT_BGRA_PREMUL;

  PP_Resource image =
      g_pImageData->Create(PSGetInstanceId(), format, psize, PP_FALSE);
  uint8_t* pixels = g_pImageData->Map(image);

  struct PP_ImageDataDesc desc;
  uint8_t* cell_temp;
  uint32_t x, y;

  
  if (!g_Context.cell_in || !g_Context.cell_out) return;

  
  g_pImageData->Describe(image, &desc);

  
  Stir(desc.size.width, desc.size.height);

  
  for (y = 1; y < desc.size.height - 1; ++y) {
    uint8_t *src0 = (g_Context.cell_in + (y - 1) * desc.size.width) + 1;
    uint8_t *src1 = src0 + desc.size.width;
    uint8_t *src2 = src1 + desc.size.width;
    int count;
    uint32_t color;
    uint8_t *dst = (g_Context.cell_out + y * desc.size.width) + 1;
    uint32_t *pixel_line =  (uint32_t*) (pixels + y * desc.stride);

    for (x = 1; x < (desc.size.width - 1); ++x) {
      
      count = src0[-1] + src0[0] +     src0[1] +
              src1[-1] + src1[0] * 9 + src1[1] +
              src2[-1] + src2[0] +     src2[1];
      color = kNeighborColors[count];

      *pixel_line++ = color;
      *dst++ = kIsAlive[count];
      ++src0;
      ++src1;
      ++src2;
    }
  }

  cell_temp = g_Context.cell_in;
  g_Context.cell_in = g_Context.cell_out;
  g_Context.cell_out = cell_temp;

  
  g_pImageData->Unmap(image);

  
  g_pGraphics2D->ReplaceContents(g_Context.ctx, image);
  g_pGraphics2D->Flush(g_Context.ctx, PP_BlockUntilComplete());

  
  g_pCore->ReleaseResource(image);
}
示例#2
0
byte RandomPool::GenerateByte()
{
    if (getPos == pool.size())
        Stir();

    return pool[getPos++];
}
示例#3
0
文件: randpool.cpp 项目: vgck/opendr2
unsigned int RandomPool::Get(byte &outByte)
{
	if (getPos == pool.size)
		Stir();

	outByte = pool[getPos++];
	return 1;
}
示例#4
0
文件: randpool.cpp 项目: vgck/opendr2
void RandomPool::Put(byte inByte)
{
	if (addPos == pool.size)
		Stir();

	pool[addPos++] ^= inByte;
	getPos = pool.size; // Force stir on get
}
示例#5
0
void OldRandomPool::GenerateIntoBufferedTransformation(BufferedTransformation &target, const std::string &channel, lword size)
{
	while (size > 0)
	{
		if (getPos == pool.size())
				Stir();
		size_t t = UnsignedMin(pool.size() - getPos, size);
		target.ChannelPut(channel, pool+getPos, t);
		size -= t;
		getPos += t;
	}}
示例#6
0
void OldRandomPool::IncorporateEntropy(const byte *input, size_t length)
{
	size_t t;
	while (length > (t = pool.size() - addPos))
	{
		xorbuf(pool+addPos, input, t);
		input += t;
		length -= t;
		Stir();
	}

	if (length)
	{
		xorbuf(pool+addPos, input, length);
		addPos += length;
		getPos = pool.size(); // Force stir on get
	}
}
示例#7
0
void RandomPool::GenerateBlock(byte *outString, unsigned int size)
{
	unsigned t;

	while (size > (t = pool.size - getPos))
	{
		memcpy(outString, pool+getPos, t);
		outString += t;
		size -= t;
		Stir();
	}

	if (size)
	{
		memcpy(outString, pool+getPos, size);
		getPos += size;
	}
}
示例#8
0
文件: randpool.cpp 项目: vgck/opendr2
void RandomPool::Put(const byte *inString, unsigned int length)
{
	unsigned t;

	while (length > (t = pool.size - addPos))
	{
		xorbuf(pool+addPos, inString, t);
		inString += t;
		length -= t;
		Stir();
	}

	if (length)
	{
		xorbuf(pool+addPos, inString, length);
		addPos += length;
		getPos = pool.size; // Force stir on get
	}
}
示例#9
0
文件: randpool.cpp 项目: vgck/opendr2
unsigned int RandomPool::Get(byte *outString, unsigned int getMax)
{
	unsigned t;
	unsigned int length = getMax;

	while (length > (t = pool.size - getPos))
	{
		memcpy(outString, pool+getPos, t);
		outString += t;
		length -= t;
		Stir();
	}

	if (length)
	{
		memcpy(outString, pool+getPos, length);
		getPos += length;
	}
	return getMax;
}
示例#10
0
unsigned int RandomPool::Put2(const byte *inString, unsigned int length, int messageEnd, bool blocking)
{
    unsigned t;

    while (length > (t = pool.size() - addPos))
    {
        xorbuf(pool+addPos, inString, t);
        inString += t;
        length -= t;
        Stir();
    }

    if (length)
    {
        xorbuf(pool+addPos, inString, length);
        addPos += length;
        getPos = pool.size(); // Force stir on get
    }

    return 0;
}
示例#11
0
unsigned int RandomPool::TransferTo2(BufferedTransformation &target, unsigned long &transferBytes, const std::string &channel, bool blocking)
{
    if (!blocking)
        throw NotImplemented("RandomPool: nonblocking transfer is not implemented by this object");

    unsigned int t;
    unsigned long size = transferBytes;

    while (size > (t = pool.size() - getPos))
    {
        target.ChannelPut(channel, pool+getPos, t);
        size -= t;
        Stir();
    }

    if (size)
    {
        target.ChannelPut(channel, pool+getPos, size);
        getPos += size;
    }

    return 0;
}
示例#12
0
文件: life.c 项目: Connlaio/chromium
void Render() {
  struct PP_Size* psize = &g_Context.size;
  PP_ImageDataFormat format = PP_IMAGEDATAFORMAT_BGRA_PREMUL;

  /*
   * Create a buffer to draw into.  Since we are waiting until the next flush
   * chrome has an opportunity to cache this buffer see ppb_graphics_2d.h.
   */
  PP_Resource image =
      g_pImageData->Create(PSGetInstanceId(), format, psize, PP_FALSE);
  uint8_t* pixels = g_pImageData->Map(image);

  struct PP_ImageDataDesc desc;
  uint8_t* cell_temp;
  uint32_t x, y;

  /* If we somehow have not allocated these pointers yet, skip this frame. */
  if (!g_Context.cell_in || !g_Context.cell_out) return;

  /* Get the stride. */
  g_pImageData->Describe(image, &desc);

  /* Stir up the edges to prevent the simulation from reaching steady state. */
  Stir(desc.size.width, desc.size.height);

  /* Do neighbor summation; apply rules, output pixel color. */
  for (y = 1; y < desc.size.height - 1; ++y) {
    uint8_t *src0 = (g_Context.cell_in + (y - 1) * desc.size.width) + 1;
    uint8_t *src1 = src0 + desc.size.width;
    uint8_t *src2 = src1 + desc.size.width;
    int count;
    uint32_t color;
    uint8_t *dst = (g_Context.cell_out + y * desc.size.width) + 1;
    uint32_t *pixel_line =  (uint32_t*) (pixels + y * desc.stride);

    for (x = 1; x < (desc.size.width - 1); ++x) {
      /* Jitter and sum neighbors. */
      count = src0[-1] + src0[0] + src0[1] +
              src1[-1] +         + src1[1] +
              src2[-1] + src2[0] + src2[1];
      /* Include center cell. */
      count = count + count + src1[0];
      /* Use table lookup indexed by count to determine pixel & alive state. */
      color = kNeighborColors[count];
      *pixel_line++ = color;
      *dst++ = kIsAlive[count];
      ++src0;
      ++src1;
      ++src2;
    }
  }

  cell_temp = g_Context.cell_in;
  g_Context.cell_in = g_Context.cell_out;
  g_Context.cell_out = cell_temp;

  /* Unmap the range, we no longer need it. */
  g_pImageData->Unmap(image);

  /* Replace the contexts, and block until it's on the screen. */
  g_pGraphics2D->ReplaceContents(g_Context.ctx, image);
  g_pGraphics2D->Flush(g_Context.ctx, PP_BlockUntilComplete());

  /* Release the image data, we no longer need it. */
  g_pCore->ReleaseResource(image);
}