C++ TRaster32P::unlock方法代码示例

//------------------------------------------------
inline void setMatteAndYMirror(const TRaster32P &ras)
{
	ras->lock();
	TPixel32 *upRow = ras->pixels();
	TPixel32 *dwRow = ras->pixels(ras->getLy() - 1);
	int hLy = (int)(ras->getLy() / 2. + 0.5); //piccola pessimizzazione...
	int wrap = ras->getWrap();
	int lx = ras->getLx();
	TPixel32 *upPix = 0;
	TPixel32 *lastPix = ras->pixels(hLy);
	while (upPix < lastPix) {
		upPix = upRow;
		TPixel32 *dwPix = dwRow;
		TPixel32 *endPix = upPix + lx;
		while (upPix < endPix) {
			TPixel32 tmpPix(upPix->r, upPix->g, upPix->b, 0xff);
			*upPix = *dwPix;
			upPix->m = 0xff;
			*dwPix = tmpPix;
			++upPix;
			++dwPix;
		}
		upRow += wrap;
		dwRow -= wrap;
	}
	ras->unlock();
}

void TRop::swapRBChannels(const TRaster32P &r) {
  int lx = r->getLx();
  int y  = r->getLy();
  r->lock();
  while (--y >= 0) {
    TPixel32 *pix    = r->pixels(y);
    TPixel32 *endPix = pix + lx;
    while (pix < endPix) {
      tswap(pix->r, pix->b);
      ++pix;
    }
  }
  r->unlock();
}

static void addBackground32(TRaster32P ras, const TPixel32 &col)
{
	ras->lock();
	int nrows = ras->getLy();
	while (nrows-- > 0) {
		TPixel32 *pix = ras->pixels(nrows);
		TPixel32 *endPix = pix + ras->getLx();
		while (pix < endPix) {
			*pix = overPix(col, *pix);
			pix++;
		}
	}
	ras->unlock();
}

TImageP TImageReaderBmp::load()
{
	TImageP image;
	void *buff;
	int retCode = readbmp(getFilePath().getWideString().c_str(), &m_lx, &m_ly, &buff);
	if (retCode != OK) {
		throw TImageException(getFilePath(), buildBMPExceptionString(retCode));
	}

	TRaster32P raster;
	raster.create(m_lx, m_ly);
	raster->lock();
	memcpy(raster->pixels(), buff, m_lx * m_ly * sizeof(TPixel32));
	raster->unlock();
	TRasterImageP rasImage(raster);
	// image->setRaster(raster);
	delete[] buff;
	return TImageP(rasImage);
}

TRaster32P TRop::copyAndSwapRBChannels(const TRaster32P &srcRaster) {
  TRaster32P newRaster(srcRaster->getSize());
  int lx = srcRaster->getLx();
  int y  = srcRaster->getLy();
  srcRaster->lock();
  newRaster->lock();
  while (--y >= 0) {
    TPixel32 *pix    = srcRaster->pixels(y);
    TPixel32 *newpix = newRaster->pixels(y);
    TPixel32 *endPix = pix + lx;
    while (pix < endPix) {
      newpix->r = pix->b;
      newpix->g = pix->g;
      newpix->b = pix->r;
      newpix->m = pix->m;
      ++pix;
      ++newpix;
    }
  }
  srcRaster->unlock();
  newRaster->unlock();

  return newRaster;
}

//.........这里部分代码省略.........
				segm.x = tround(yMin / m);
				segm.y = yMin;
			}

			int dSegm = tfloor(alpha * (segm.x + 0.5) + beta * (segm.y + 1));
			while (segm.y <= yMax) {
				int xMin, xMax;
				if (k > 0) {
					xMin = tmax(a.x + segm.x, 0);	  //  clipping x + ritorno alle
					xMax = tmin(a.x + segm.x, lx - 1); //  coordinate "di schermo"

				} else {
					xMin = tmax(a.x - segm.x, 0);	  //  clipping x + riflessione + ritorno
					xMax = tmin(a.x - segm.x, lx - 1); //  alle  coordinate "di schermo"
				}

				TPixel32 *p = ras->pixels(segm.y + a.y) + xMin;
				TPixel32 *q = p + (xMax - xMin);

				while (p <= q)
					*p++ = col;

				if (dSegm <= 0) //  NordEst
				{
					dSegm = dSegm + incNE;
					segm.x++;
				} else //  Nord
				{
					dSegm = dSegm + incN;
				}
				segm.y++;
			}
		}
		ras->unlock();
		return;
	}

	HalfCord halfCord(radius);

	int x, y;

	// ----- punti iniziali coincidenti: disegna un cerchio
	if (a == b) {
		int yMin = tmax(a.y - radius, 0);	  //  clipping y
		int yMax = tmin(a.y + radius, ly - 1); //  clipping y
		for (y = yMin; y <= yMax; y++) {
			int deltay = abs(y - a.y);
			int xMin = tmax(a.x - halfCord.getCord(deltay), 0);		 //  clipping x
			int xMax = tmin(a.x + halfCord.getCord(deltay), lx - 1); //  clipping x
			TPixel32 *p = ras->pixels(y) + xMin;
			TPixel32 *q = p + (xMax - xMin);
			while (p <= q)
				*p++ = col;
		}
		ras->unlock();
		return;
	}

	// -----  rettangolo orizzontale (a.y = b.y, a.x != b.x)
	if (a.y == b.y) {
		int yMin = tmax((a.y - radius), 0);		 //  clipping y
		int yMax = tmin((a.y + radius), ly - 1); //  clipping y
		int xLeft = tmin(a.x, b.x);
		int xRight = tmax(a.x, b.x);
		for (y = yMin; y <= yMax; y++) {
			int deltay = abs(y - a.y);

//.........这里部分代码省略.........

  glMatrixMode(GL_MODELVIEW);
  glLoadIdentity();

  glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
  glClear(GL_COLOR_BUFFER_BIT);

  // do OpenGL draw

  double lwTex = (double)(inBBoxLx - 1) / (double)(texWidth - 1);
  double lhTex = (double)(inBBoxLy - 1) / (double)(texHeight - 1);

  TPointD tex00 = TPointD(0.0, 0.0);
  TPointD tex10 = TPointD(lwTex, 0.0);
  TPointD tex11 = TPointD(lwTex, lhTex);
  TPointD tex01 = TPointD(0.0, lhTex);

  GLenum polygonStyle;
  if (wireframe) {
    polygonStyle = GL_LINE;
    glDisable(GL_TEXTURE_2D);
  } else
    polygonStyle = GL_FILL;
  checkErrorsByGL p00.x /= ri.m_shrinkX;
  p00.y /= ri.m_shrinkY;

  p10.x /= ri.m_shrinkX;
  p10.y /= ri.m_shrinkY;

  p11.x /= ri.m_shrinkX;
  p11.y /= ri.m_shrinkY;

  p01.x /= ri.m_shrinkX;
  p01.y /= ri.m_shrinkY;

  TPointD translate = TPointD(tile.m_pos.x + tile.getRaster()->getLx() * 0.5,
                              tile.m_pos.y + tile.getRaster()->getLy() * 0.5);
  glTranslated(-translate.x, -translate.y, 0.0);

  // disegno il poligono
  double dist_p00_p01                 = tdistance2(p00, p01);
  double dist_p10_p11                 = tdistance2(p10, p11);
  double dist_p01_p11                 = tdistance2(p01, p11);
  double dist_p00_p10                 = tdistance2(p00, p10);
  bool vertical                       = (dist_p00_p01 == dist_p10_p11);
  bool horizontal                     = (dist_p00_p10 == dist_p01_p11);
  if (vertical && horizontal) details = 1;
  glPolygonMode(GL_FRONT_AND_BACK, polygonStyle);
  subdivision(p00, p10, p11, p01, tex00, tex10, tex11, tex01, clippingRect,
              details);

  if (!wireframe) {
    // abilito l'antialiasing delle linee
    glEnable(GL_LINE_SMOOTH);
    glEnable(GL_BLEND);
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);

    // disegno il bordo del poligono
    glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
    glBegin(GL_QUADS);
    glTexCoord2d(tex00.x, tex00.y);
    tglVertex(p00);
    glTexCoord2d(tex10.x, tex10.y);
    tglVertex(p10);
    glTexCoord2d(tex11.x, tex11.y);
    tglVertex(p11);
    glTexCoord2d(tex01.x, tex01.y);
    tglVertex(p01);
    glEnd();

    // disabilito l'antialiasing per le linee
    glDisable(GL_LINE_SMOOTH);
    glDisable(GL_BLEND);
    glDisableClientState(GL_VERTEX_ARRAY);
    glDisableClientState(GL_TEXTURE_COORD_ARRAY);
    glDisable(GL_TEXTURE_2D);
  }

  // force to finish
  glFlush();

  // rimetto il disegno dei poligoni a GL_FILL
  glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);

  // metto il frame buffer nel raster del tile
  glPixelStorei(GL_UNPACK_ROW_LENGTH, rasterWidth);
  glPixelStorei(GL_UNPACK_ALIGNMENT, 4);

  TRaster32P newRas(tile.getRaster()->getLx(), tile.getRaster()->getLy());
  newRas->lock();
  glReadPixels(1, 1, newRas->getLx(), newRas->getLy(), GL_RGBA,
               GL_UNSIGNED_BYTE, (void *)newRas->getRawData());
  newRas->unlock();
  checkErrorsByGL

      rasaux->unlock();

  tile.getRaster()->copy(newRas);
}

void TLevelReader3gp::load(const TRasterP &rasP, int frameIndex, const TPoint &pos, int shrinkX, int shrinkY)
{
	TRaster32P ras = rasP;

	{
		QMutexLocker sl(&m_mutex);
		ras->lock();
		if (m_IOError != QTNoError)
			goto error;

		Rect rect;
		rect.right = pos.x + ras->getLx();
		rect.left = pos.x;
		rect.bottom = pos.y + ras->getLy();
		rect.top = pos.y;

		GWorldPtr offscreenGWorld;
		OSErr err;

#if defined TNZ_MACHINE_CHANNEL_ORDER_BGRM
		OSType pixelFormat = k32BGRAPixelFormat;
#elif defined TNZ_MACHINE_CHANNEL_ORDER_MRGB
		OSType pixelFormat = k32ARGBPixelFormat;
#endif

		err = QTNewGWorldFromPtr(
			&offscreenGWorld, pixelFormat,
			&rect, 0, 0, 0, ras->getRawData(), ras->getWrap() * 4);

		if (err != noErr) {
			m_IOError = QTUnableToCreateResource;
			goto error;
		}

		SetMovieBox(m_movie, &rect);
		err = GetMoviesError();
		if (err != noErr) {
			m_IOError = QTUnableToSetMovieBox;
#if 0
    DisposeGWorld(offscreenGWorld);
#endif
			goto error;
		}

#if 0
  SetMovieGWorld(m_movie, offscreenGWorld, GetGWorldDevice(offscreenGWorld));
#endif
		err = GetMoviesError();
		if (err != noErr) {
			m_IOError = QTUnableToSetMovieGWorld;
#if 0
    DisposeGWorld(offscreenGWorld);
#endif
			goto error;
		}

		TimeValue currentTime = currentTimes[frameIndex];

		SetMovieTimeValue(m_movie, currentTime);

		err = GetMoviesError();
		if (err != noErr) {
			m_IOError = QTUnableToSetTimeValue;
#if 0
    DisposeGWorld(offscreenGWorld);
#endif
			goto error;
		}

		err = UpdateMovie(m_movie);
		if (err != noErr) {
			m_IOError = QTUnableToUpdateMovie;
#if 0
    DisposeGWorld(offscreenGWorld);
#endif
			goto error;
		}

		MoviesTask(m_movie, 0);
		err = GetMoviesError();
		if (err != noErr) {
			m_IOError = QTUnableToDoMovieTask;
#if 0
    DisposeGWorld(offscreenGWorld);
#endif
			goto error;
		}

		SetMovieGWorld(m_movie, 0, 0);
#if 0
  DisposeGWorld(offscreenGWorld);
#endif
		ras->unlock();
	}

	if (m_depth != 32) {
		setMatteAndYMirror(rasP);
	} else {
		rasP->yMirror();
	}
//.........这里部分代码省略.........

//.........这里部分代码省略.........
	double lhTex = 1.0;

	TRaster32P texture;
	unsigned int texLx = (unsigned int)tex->getLx();
	unsigned int texLy = (unsigned int)tex->getLy();

	if (texWidth != texLx ||
		texHeight != texLy) {
		texture = TRaster32P(texWidth, texHeight);
		texture->fill(TPixel32(0, 0, 0, 0));
		texture->copy(tex);
		lwTex = (texLx) / (double)(texWidth);
		lhTex = (texLy) / (double)(texHeight);
		if (lwTex > 1.0)
			lwTex = 1.0;
		if (lhTex > 1.0)
			lhTex = 1.0;
	} else
		texture = tex;
	GLenum fmt =
#ifdef TNZ_MACHINE_CHANNEL_ORDER_BGRM
		GL_BGRA_EXT;
#elif TNZ_MACHINE_CHANNEL_ORDER_MBGR
		GL_ABGR_EXT;
#elif TNZ_MACHINE_CHANNEL_ORDER_RGBM
		GL_RGBA;
#elif TNZ_MACHINE_CHANNEL_ORDER_MRGB
		GL_BGRA;
#else
//   Error  PLATFORM NOT SUPPORTED
#error "unknown channel order!"
#endif

	// Generate a texture id and bind it.
	GLuint texId;
	glGenTextures(1, &texId);

	glBindTexture(GL_TEXTURE_2D, texId);

	glPixelStorei(GL_UNPACK_ROW_LENGTH, texture->getWrap());

	texture->lock();
	glTexImage2D(GL_TEXTURE_2D,
				 0,
				 4,
				 texWidth,
				 texHeight,
				 0,
				 fmt,
#ifdef TNZ_MACHINE_CHANNEL_ORDER_MRGB
				 GL_UNSIGNED_INT_8_8_8_8_REV,
#else
				 GL_UNSIGNED_BYTE,
#endif
				 texture->getRawData());

	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);

	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
	glEnable(GL_TEXTURE_2D);

	glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);

	double rectLx = rect.getLx();
	double rectLy = rect.getLy();

	tglColor(TPixel32(0, 0, 0, 0));

	glPushMatrix();

	glTranslated(rect.x0, rect.y0, 0.0);
	glBegin(GL_POLYGON);

	glTexCoord2d(0, 0);
	tglVertex(TPointD(0.0, 0.0));

	glTexCoord2d(lwTex, 0);
	tglVertex(TPointD(rectLx, 0.0));

	glTexCoord2d(lwTex, lhTex);
	tglVertex(TPointD(rectLx, rectLy));

	glTexCoord2d(0, lhTex);
	tglVertex(TPointD(0.0, rectLy));

	glEnd();
	glDisable(GL_TEXTURE_2D);

	glPopMatrix();
	glPopAttrib();

	// Delete texture
	glDeleteTextures(1, &texId);

	texture->unlock();
}

void TglTessellator::tessellate(const TColorFunction *cf, const bool antiAliasing, TRegionOutline &outline, TRaster32P texture)
{
	//QMutexLocker sl(m_mutex);
	checkErrorsByGL;
	glEnable(GL_TEXTURE_2D);
	glColor4d(1, 1, 1, 1);
	checkErrorsByGL;
	TextureInfoForGL texInfo;

	int pow2Lx = tcg::numeric_ops::GE_2Power((unsigned int)texture->getLx());
	int pow2Ly = tcg::numeric_ops::GE_2Power((unsigned int)texture->getLy());

	TAffine aff;
	if (texture->getLx() != pow2Lx || texture->getLy() != pow2Ly) {
		TRaster32P r(pow2Lx, pow2Ly);
		aff = TScale((double)pow2Lx / texture->getLx(), (double)pow2Ly / texture->getLy());
		TRop::resample(r, texture, aff.place(texture->getCenterD(), r->getCenterD()));
		texture = r;
		glPushMatrix();
		tglMultMatrix(aff.inv());
	}

	// If GL_BRGA isn't present make a proper texture to use (... obsolete?)
	texture->lock();
	TRasterP texImage = prepareTexture(texture, texInfo);
	checkErrorsByGL;
	if (texImage != texture)
		texImage->lock();

	assert(texImage->getLx() == texImage->getWrap());

	GLuint texId;
	glGenTextures(1, &texId); // Generate a texture name
	checkErrorsByGL;
	glBindTexture(GL_TEXTURE_2D, texId); // Bind it 'active'
	checkErrorsByGL;
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);	 // These must be invoked
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);	 // on a bound texture
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); //
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); //
	checkErrorsByGL;
	glTexEnvf(GL_TEXTURE_ENV,	  // This too ?
			  GL_TEXTURE_ENV_MODE, // Better here anyway
			  GL_MODULATE);		   //
	checkErrorsByGL;
	glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
	checkErrorsByGL;
	glTexImage2D(GL_TEXTURE_2D,
				 0,						 // one level only
				 texInfo.internalformat, // pixel channels count
				 texInfo.width,			 // width
				 texInfo.height,		 // height
				 0,						 // border size
				 texInfo.type,			 // pixel format           // crappy names
				 texInfo.format,		 // pixel data type        // oh, SO much
				 texImage->getRawData());
	checkErrorsByGL;
	texture->unlock();
	if (texImage != texture)
		texImage->unlock();

	TglTessellator::GLTess glTess;
	gluTessCallback(glTess.m_tess, GLU_TESS_VERTEX, (GluCallback)tessellateTexture);
	checkErrorsByGL;

	//------------------------//
	if (aff != TAffine())
		doTessellate(glTess, cf, antiAliasing, outline, aff); // Tessellate & render
	else
		doTessellate(glTess, cf, antiAliasing, outline); // Tessellate & render
	checkErrorsByGL;
	//------------------------//
	if (aff != TAffine())
		glPopMatrix();
	glDeleteTextures(1, &texId); // Delete & unbind texture
	checkErrorsByGL;
	glDisable(GL_TEXTURE_2D);
	checkErrorsByGL;
}

void TRop::over(TRaster32P rout, const TRasterGR8P &rup, const TPixel32 &color)
{
	rout->lock();
	do_over(rout, rup, color);
	rout->unlock();
}