C++ BLUE函數代碼示例

本文整理匯總了C++中BLUE函數的典型用法代碼示例。如果您正苦於以下問題：C++ BLUE函數的具體用法？C++ BLUE怎麽用？C++ BLUE使用的例子？那麽, 這裏精選的函數代碼示例或許可以為您提供幫助。

在下文中一共展示了BLUE函數的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C++代碼示例。

示例1: compose_over

pixel_t compose_over(pixel_t fg, pixel_t bg)
{
	double mul;
	double mul_cmp;

	double res_a;
	double res_r;
	double res_g;
	double res_b;

	if (ALPHA(bg) == 255) {
		res_a = 1;
		mul = ((double) ALPHA(fg)) / 255.0;
		mul_cmp = 1 - mul;
	} else {
		double fg_a = ((double) ALPHA(fg)) / 255.0;
		double bg_a = ((double) ALPHA(bg)) / 255.0;

		res_a = 1 - (1 - fg_a) * (1 - bg_a);
		mul = fg_a / res_a;
		mul_cmp = 1 - mul;
	}

	res_r = mul * ((double) RED(fg)) + mul_cmp * ((double) RED(bg));
	res_g = mul * ((double) GREEN(fg)) + mul_cmp * ((double) GREEN(bg));
	res_b = mul * ((double) BLUE(fg)) + mul_cmp * ((double) BLUE(bg));

	return PIXEL((unsigned) (res_a * 255),
	    (unsigned) res_r, (unsigned) res_g, (unsigned) res_b);
}

開發者ID:jvesely，項目名稱:helenos，代碼行數:30，代碼來源:compose.c

示例2: glEnable

void PointSet::Draw ( float* view_mat, float rad )
{
	char* dat;
	Point* p;
	glEnable ( GL_NORMALIZE );	

	if ( m_Param[PNT_DRAWMODE] == 0 ) {
		glLoadMatrixf ( view_mat );
		dat = mBuf[0].data;	
		for (int n = 0; n < NumPoints(); n++) {
			p = (Point*) dat;
			glPushMatrix ();
			glTranslatef ( p->pos.x, p->pos.y, p->pos.z );		
			glScalef ( 0.2, 0.2, 0.2 );	
			if(p->type == 0)
			glColor4f ( 0.1,0.3,1.0,1.0 );//glColor4f ( RED(p->clr), GRN(p->clr), BLUE(p->clr), ALPH(p->clr) );
			else
            glColor4f ( RED(p->clr), GRN(p->clr), BLUE(p->clr), 0.0 );
			drawSphere ();
			glPopMatrix ();		
			dat += mBuf[0].stride;
		}	
	} else if ( m_Param[PNT_DRAWMODE] == 1 ) {
		glLoadMatrixf ( view_mat );
		dat = mBuf[0].data;
		glBegin ( GL_POINTS );
		for (int n=0; n < NumPoints(); n++) {
			p = (Point*) dat;
			glColor3f ( RED(p->clr), GRN(p->clr), BLUE(p->clr) );			
			glVertex3f ( p->pos.x, p->pos.y, p->pos.z );			
			dat += mBuf[0].stride;
		}
		glEnd ();
	}
}

開發者ID:lakshmiboorgu，項目名稱:SPH_Simulation，代碼行數:35，代碼來源:point_set.cpp

示例3: rain_init

static int
rain_init(video_adapter_t *adp)
{
	video_info_t info;
	int i;
	
	if (!vidd_get_info(adp, M_VGA_CG320, &info)) {
		scrmode = M_VGA_CG320;
	} else if (!vidd_get_info(adp, M_PC98_PEGC640x480, &info)) {
		scrmode = M_PC98_PEGC640x480;
	} else if (!vidd_get_info(adp, M_PC98_PEGC640x400, &info)) {
		scrmode = M_PC98_PEGC640x400;
	} else {
		log(LOG_NOTICE,
		    "%s: the console does not support M_VGA_CG320\n",
		    SAVER_NAME);
		return (ENODEV);
	}
	
	scrw = info.vi_width;
	scrh = info.vi_height;

	/* intialize the palette */
	for (i = 1; i < MAX; i++)
		rain_pal[BLUE(i)] = rain_pal[BLUE(i - 1)] + INCREMENT;
	
	return (0);
}

開發者ID:coyizumi，項目名稱:cs111，代碼行數:28，代碼來源:rain_saver.c

示例4: ALPHA

ColorARGB GifTranscoder::computeAverage(ColorARGB c1, ColorARGB c2, ColorARGB c3, ColorARGB c4) {
    char avgAlpha = (char)(((int) ALPHA(c1) + (int) ALPHA(c2) +
                            (int) ALPHA(c3) + (int) ALPHA(c4)) / 4);
    char avgRed =   (char)(((int) RED(c1) + (int) RED(c2) +
                            (int) RED(c3) + (int) RED(c4)) / 4);
    char avgGreen = (char)(((int) GREEN(c1) + (int) GREEN(c2) +
                            (int) GREEN(c3) + (int) GREEN(c4)) / 4);
    char avgBlue =  (char)(((int) BLUE(c1) + (int) BLUE(c2) +
                            (int) BLUE(c3) + (int) BLUE(c4)) / 4);
    return MAKE_COLOR_ARGB(avgAlpha, avgRed, avgGreen, avgBlue);
}

開發者ID:b-project，項目名稱:Messaging，代碼行數:11，代碼來源:GifTranscoder.cpp

示例5: rain_update

static void
rain_update(video_adapter_t *adp)
{
	int i, t;

	t = rain_pal[BLUE(MAX)];
	for (i = MAX; i > 1; i--)
		rain_pal[BLUE(i)] = rain_pal[BLUE(i - 1)];
	rain_pal[BLUE(1)] = t;
	vidd_load_palette(adp, rain_pal);
}

開發者ID:coyizumi，項目名稱:cs111，代碼行數:11，代碼來源:rain_saver.c

示例6: PT_CopyBlend

internal void
PT_CopyBlend(u32 *destPixels, PT_Rect *destRect, u32 destPixelsPerRow,
             u32 *srcPixels, PT_Rect *srcRect, u32 srcPixelsPerRow,
             u32 *newColor)
{
    // If src and dest rects are not the same size ==> bad things
    assert(destRect->w == srcRect->w && destRect->h == srcRect->h);

    // For each pixel in the destination rect, alpha blend to it the 
    // corresponding pixel in the source rect.
    // ref: https://en.wikipedia.org/wiki/Alpha_compositing

    u32 stopX = destRect->x + destRect->w;
    u32 stopY = destRect->y + destRect->h;

    for (u32 dstY = destRect->y, srcY = srcRect->y; 
         dstY < stopY; 
         dstY++, srcY++) {
        for (u32 dstX = destRect->x, srcX = srcRect->x; 
             dstX < stopX; 
             dstX++, srcX++) {

            u32 srcColor = srcPixels[(srcY * srcPixelsPerRow) + srcX];
            u32 *destPixel = &destPixels[(dstY * destPixelsPerRow) + dstX];
            u32 destColor = *destPixel;

            // Colorize our source pixel before we blend it
            srcColor = PT_ColorizePixel(srcColor, *newColor);

            if (ALPHA(srcColor) == 0) {
                // Source is transparent - so do nothing
                continue;
            } else if (ALPHA(srcColor) == 255) {
                // Just copy the color, no blending necessary
                *destPixel = srcColor;
            } else {
                // Do alpha blending
                float srcA = ALPHA(srcColor) / 255.0;
                float invSrcA = (1.0 - srcA);
                float destA = ALPHA(destColor) / 255.0;

                float outAlpha = srcA + (destA * invSrcA);
                u8 fRed = ((RED(srcColor) * srcA) + (RED(destColor) * destA * invSrcA)) / outAlpha;
                u8 fGreen = ((GREEN(srcColor) * srcA) + (GREEN(destColor) * destA * invSrcA)) / outAlpha;
                u8 fBlue = ((BLUE(srcColor) * srcA) + (BLUE(destColor) * destA * invSrcA)) / outAlpha;
                u8 fAlpha = outAlpha * 255;

                *destPixel = COLOR_FROM_RGBA(fRed, fGreen, fBlue, fAlpha);
            }
        }
    }
}

開發者ID:pdetagyos，項目名稱:RoguelikeTutorial，代碼行數:52，代碼來源:pt_console.c

示例7: hippo_cairo_set_source_rgba32

void
hippo_cairo_set_source_rgba32(cairo_t *cr,
                              guint32  color)
{
    /* trying to avoid alpha 255 becoming a double alpha that isn't quite opaque ?
     * not sure this is needed.
     */
    if ((color & 0xff) == 0xff) {
        cairo_set_source_rgb(cr, RED(color), GREEN(color), BLUE(color));
    } else {
        cairo_set_source_rgba(cr, RED(color), GREEN(color), BLUE(color), ALPHA(color));
    }
}

開發者ID:manoj-makkuboy，項目名稱:magnetism，代碼行數:13，代碼來源:hippo-canvas.c

示例8: getBilinearInterpolatedPixel

uint32_t getBilinearInterpolatedPixel(const void *pixels, int width, int height, int stride, float x, float y) {
	int x1 = (int) x;
	int x2 = x1+1;
	int y1 = (int) y;
	int y2 = y1+1;
	
	uint32_t pixel1 = getPixelRGBA(pixels, stride, x1%width, y1%height);
	uint32_t pixel2 = getPixelRGBA(pixels, stride, x2%width, y1%height);
	uint32_t pixel3 = getPixelRGBA(pixels, stride ,x1%width, y2%height);
	uint32_t pixel4 = getPixelRGBA(pixels, stride, x2%width, y2%height);
	
	int red1 = RED(pixel1);
	int green1 = GREEN(pixel1);
	int blue1 = BLUE(pixel1);
	
	int red2 = RED(pixel2);
	int green2 = GREEN(pixel2);
	int blue2 = BLUE(pixel2);
	
	int red3 = RED(pixel3);
	int green3 = GREEN(pixel3);
	int blue3 = BLUE(pixel3);
	
	int red4 = RED(pixel4);
	int green4 = GREEN(pixel4);
	int blue4 = BLUE(pixel4);
	
	float w1 = x2-x;
	float w2 = x-x1; 
	
	float red1_2 = w1*red1 + w2*red2;
	float red2_3 = w1*red3 + w2*red4;
	
	float green1_2 = w1*green1 + w2*green2;
	float green2_3 = w1*green3 + w2*green4;
	
	float blue1_2 = w1*blue1 + w2*blue2;
	float blue2_3 = w1*blue3 + w2*blue4;
	
	w1 = y2-y;
	w2 = y-y1;
	
	int red = (int) (w1*red1_2 + w2*red2_3 + 0.5);
	int green = (int) (w1*green1_2 + w2*green2_3 + 0.5);
	int blue = (int) (w1*blue1_2 + w2*blue2_3 + 0.5);

	return createRGBAPixel(red, green, blue, 0);
}

開發者ID:Joisar，項目名稱:OpenPanodroid，代碼行數:48，代碼來源:cubicpano-jni.cpp

示例9: sprintf

void TermCMD::help(cTerm & t,int argc,char *argv[])
{
	t<<(GREEN("TermCMD commands:\n"));

	cmd_table_t* t_ptr = NULL;
	char txt[16];

	int k = 0;
	do
	{
		t_ptr = &mCmdTable[k++];
		if(!t_ptr->cmd)
			break;

		if(t_ptr->f)
		{
			sprintf(txt,"%s %s", t_ptr->cmd, t_ptr->argDesc);
			t<<"  "<<t.format("%-10s - ",txt)<<t.format("%s\n",t_ptr->desc);
		}
		else
		{
			//this is a caption
			t<<t.format(BLUE("%s\n"), t_ptr->cmd);
		}

	}while(t_ptr->cmd);
}

開發者ID:JanusErasmus，項目名稱:pump-input-logger，代碼行數:27，代碼來源:TermCMD.cpp

示例10: draw2DBox

/*
void draw2DBox(int top, int left, int right, int bottom, DWORD colour[4])
{
	CONTROLVERTEX Vertices[4] =	{
		// x, y, z, rhw, colour, tu,tv
		{	left,	bottom,		0.0f,	1.0f,	colour[0],	0.0f,	1.0f },		// BL
		{	right,	bottom, 0.0f,	1.0f,	colour[2],	1.0f,	1.0f },		// BR
		{	left,	top,			0.0f,	1.0f,	colour[1],	0.0f,	0.0f },		// TL
		{	right,	top,		0.0f,	1.0f,	colour[3],	1.0f,	0.0f },		// TR
	};                                                          
	
	glBegin(GL_TRIANGLE_STRIP);
	for (int i = 0; i < 4; )
	{
			DWORD &c = Vertices[i].diffuse;
			float c1[4] ={
				((float)RED(c)) / 255.0,
			  ((float)GREEN(c)) / 255.0,
			  ((float)BLUE(c)) / 255.0,
			  ((float)ALPHA(c)) / 255.0
			};
			
			glColor4fv(c1);  
			glTexCoord2d(Vertices[i].tu0,Vertices[i].tv0);
			glVertex3f(Vertices[i].x, Vertices[i].y, Vertices[i].z); 
			i++;
	}	
	glEnd();
}
*/
void draw2DBox(float top, float left, float right, float bottom, DWORD colour[4])
{
	CONTROLVERTEX Vertices[4] =	{
		// x, y, z, rhw, colour, tu,tv
		{	left,	bottom,		0.0f,	1.0f,	colour[0],	0.0f,	1.0f },		// BL
		{	right,	bottom, 0.0f,	1.0f,	colour[2],	1.0f,	1.0f },		// BR
		{	left,	top,			0.0f,	1.0f,	colour[1],	0.0f,	0.0f },		// TL
		{	right,	top,		0.0f,	1.0f,	colour[3],	1.0f,	0.0f },		// TR
	};                                                          
	
	glBegin(GL_TRIANGLE_STRIP);
	for (int i = 0; i < 4; )
	{
			DWORD &c = Vertices[i].diffuse;
			float c1[4] ={
				((float)RED(c)) / 255.0f,
			  ((float)GREEN(c)) / 255.0f,
			  ((float)BLUE(c)) / 255.0f,
			  ((float)ALPHA(c)) / 255.0f
			};
			
			glColor4fv(c1);  
			glTexCoord2d(Vertices[i].tu0,Vertices[i].tv0);
			glVertex3f(Vertices[i].x, Vertices[i].y, Vertices[i].z); 
			i++;
	}	
	glEnd();
}

開發者ID:glenritchie，項目名稱:assignment，代碼行數:58，代碼來源:draw_box.cpp

示例11: malloc

char *region_of_interest (NEURON_LAYER *nl_input, int x_center, int y_center, int width, int height)
{
	int xi, yi, wi, hi, xo, yo, wo, ho;
	NEURON_OUTPUT value;
	
	char * output = malloc(width * height * 3 * sizeof(char));
	
	wi = nl_input->dimentions.x;
	hi = nl_input->dimentions.y;
	
	wo = width;
	ho = height;
	
	for (yo = 0; yo < ho; yo++)
	{
		for (xo = 0; xo < wo; xo++)
		{			
			xi = (int) ((double) xo + .5) + x_center - wo/2;
			yi = (int) ((double) yo + .5) + y_center - ho/2;
			
			if (xi >= 0 && xi < wi && yi >= 0 && yi < hi)
				value = nl_input->neuron_vector[xi + wi * yi].output;
			else
				value.ival = 0;
			
			output[3 * (yo * wo + xo) + 0] = RED(value.ival);
			output[3 * (yo * wo + xo) + 1] = GREEN(value.ival);
			output[3 * (yo * wo + xo) + 2] = BLUE(value.ival);
		}
	}
	
	return output;
}

開發者ID:LCAD-UFES，項目名稱:MAE，代碼行數:33，代碼來源:gabor_guess_cylinder.c

示例12: RGB

	bool RGBLinearQuantizationFilter::Apply(til::Image &image) const
	{
		if (image.GetBitDepth() != til::Image::BPP_32B_R8G8B8) return false;

		til::uint32 *image_pixels = reinterpret_cast<til::uint32*>(image.GetPixels());

		std::vector<til::byte> palette[3] = { 
			std::vector<til::byte>(max(((til::byte)(_palette_quants)),       1), 0x00),
			std::vector<til::byte>(max(((til::byte)(_palette_quants >>  8)), 1), 0x00),
			std::vector<til::byte>(max(((til::byte)(_palette_quants >> 16)), 1), 0x00)
		};

		til::byte index[] = { 
			static_cast<til::byte>(0x100 / palette[0].size()) + (palette[0].size() % 2 * static_cast<til::byte>(palette[0].size() > 1)), 
			static_cast<til::byte>(0x100 / palette[1].size()) + (palette[1].size() % 2 * static_cast<til::byte>(palette[1].size() > 1)), 
			static_cast<til::byte>(0x100 / palette[2].size()) + (palette[2].size() % 2 * static_cast<til::byte>(palette[2].size() > 1)) 
		};

		for(std::vector<til::byte>::size_type i = 0, max = palette[0].size(); i < max; ++i) palette[0][i] = static_cast<til::byte>(i * index[0]);
		for(std::vector<til::byte>::size_type i = 0, max = palette[1].size(); i < max; ++i) palette[1][i] = static_cast<til::byte>(i * index[1]);
		for(std::vector<til::byte>::size_type i = 0, max = palette[2].size(); i < max; ++i) palette[2][i] = static_cast<til::byte>(i * index[2]);

		for (til::uint64 i = 0, max = image.GetWidth() * image.GetHeight(); i < max; ++i)
		{
			image_pixels[i] = RGB(
					palette[0][index[0] == 0x00 ? 0 : RED(image_pixels[i])   / index[0]],
					palette[1][index[1] == 0x00 ? 0 : GREEN(image_pixels[i]) / index[1]],
					palette[2][index[2] == 0x00 ? 0 : BLUE(image_pixels[i])  / index[2]]
				);
		}

		return true;
	}

開發者ID:vrishe，項目名稱:image-filtering-dither，代碼行數:33，代碼來源:RGBLinearQuantizationFilter.cpp

示例13: draw3DLine

void draw3DLine(float sx, float sy, float sz, float ex, float ey, float ez, DWORD colour)
{
	glLoadIdentity();
	/*D3DXMATRIX mat;
	D3DXMatrixIdentity(&mat);
	g_pd3dDevice->SetTransform( D3DTS_WORLD, &mat );	// Move object
*/
			DWORD &c = colour;
			float c1[4] ={
				((float)RED(c)) / 255.0f,
			  ((float)GREEN(c)) / 255.0f,
			  ((float)BLUE(c)) / 255.0f,
			  ((float)ALPHA(c)) / 255.0f
			};
			
			glColor4fv(c1);  
	
		glBegin(GL_LINES);
//		glColor4f(RED(colour), GREEN(colour), BLUE(colour), ALPHA(colour));  
		glVertex3f(sx, sy, sz);
		glVertex3f(ex, ey, ez);
	glEnd();	
	/*
	#define D3DFVF_LVERTEX (D3DFVF_XYZ|D3DFVF_DIFFUSE)
	struct LVERTEX { float x, y, z; DWORD diffuse; };
	LVERTEX line[2] = {
		{ sx,	sy,	sz,	colour	}, 
		{ ex,	ey, ez,	colour	}
	};			
	SetVertexShader( D3DFVF_LVERTEX );
	g_pd3dDevice->DrawPrimitiveUP(D3DPT_LINELIST, 2, line, sizeof(LVERTEX));
*/
}

開發者ID:glenritchie，項目名稱:assignment，代碼行數:33，代碼來源:draw_box.cpp

示例14: glBegin

void GEQuad::drawVisual(vector_t unit_size)
{
  float hx, hy, hz;
  hx = (this->dimensions.x * unit_size.x) / 2;
  hy = (this->dimensions.y * unit_size.y) / 2;
  hz = (this->dimensions.z * unit_size.z) / 2;
  glBegin(GL_QUADS);
  glColor3ub(RED(bg_color), GREEN(bg_color), BLUE(bg_color));
  glVertex3f( hx, hy,-hz);
  glVertex3f(-hx, hy,-hz);
  glVertex3f(-hx, hy, hz);
  glVertex3f( hx, hy, hz);
  glVertex3f( hx,-hy, hz);
  glVertex3f(-hx,-hy, hz);
  glVertex3f(-hx,-hy,-hz);
  glVertex3f( hx,-hy,-hz);
  glVertex3f( hx, hy, hz);
  glVertex3f(-hx, hy, hz);
  glVertex3f(-hx,-hy, hz);
  glVertex3f( hx,-hy, hz);
  glVertex3f( hx,-hy,-hz);
  glVertex3f(-hx,-hy,-hz);
  glVertex3f(-hx, hy,-hz);
  glVertex3f( hx, hy,-hz);
  glEnd();
}

開發者ID:mpato，項目名稱:gelfar，代碼行數:26，代碼來源:GEVisual.cpp

示例15: compute_gray

/*
 * Enforces all pixels to grayscale.
 */
void compute_gray(struct jpeg_data *jpeg)
{
        if (jpeg == NULL || jpeg->raw_data == NULL)
                return;


        uint32_t nb_pixels, pixel;
        uint32_t *image = jpeg->raw_data;
        uint32_t R, G, B, gray;

        /* Compute the buffer size */
        if (jpeg->is_plain_image)
                nb_pixels = jpeg->width * jpeg->height;

        else
                nb_pixels = jpeg->mcu.size * jpeg->mcu.nb;


        /* Convert each pixel */
        for (uint32_t i = 0; i < nb_pixels; i++) {

                pixel = image[i];

                R = RED(pixel);
                G = GREEN(pixel);
                B = BLUE(pixel);

                gray = (R + G + B) / 3;


                image[i] = gray << 16 | gray << 8 | gray;
        }
}

開發者ID:nejmd，項目名稱:JPEG，代碼行數:36，代碼來源:library.c

注：本文中的BLUE函數示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。