Referencia del Archivo src/qt/src/kernel/qpixmap_x11.cpp

#include "qplatformdefs.h"
#include "qbitmap.h"
#include "qpaintdevicemetrics.h"
#include "qimage.h"
#include "qwmatrix.h"
#include "qapplication.h"
#include "qt_x11_p.h"
#include <stdlib.h>

'defines'
#define	GET_RGB
#define	GET_PIXEL
#define	GET_PIXEL_DITHER_TC
Funciones
const uchar *	qt_get_bitflip_array ()
XftDraw *	XftDrawCreateAlpha (Display *, Qt::HANDLE, int)
Variables
bool	qt_use_xrender
bool	qt_has_xft

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Documentación de los 'defines'

#define GET_PIXEL

Valor:

int pixel; \
                if ( d8 ) pixel = pix[*src++]; \
                else { \
                    GET_RGB \
                    pixel = (b & blue_mask)|(g & green_mask) | (r & red_mask) \
                            | ~(blue_mask | green_mask | red_mask); \
                }

#define GET_PIXEL_DITHER_TC

Valor:

int r = qRed  ( *p ); \
                int g = qGreen( *p ); \
                int b = qBlue ( *p++ ); \
                const int thres = D[x%16][y%16]; \
                if ( r <= (255-(1<<(8-rbits))) && ((r<<rbits) & 255) \
                        > thres) \
                    r += (1<<(8-rbits)); \
                if ( g <= (255-(1<<(8-gbits))) && ((g<<gbits) & 255) \
                        > thres) \
                    g += (1<<(8-gbits)); \
                if ( b <= (255-(1<<(8-bbits))) && ((b<<bbits) & 255) \
                        > thres) \
                    b += (1<<(8-bbits)); \
                r = red_shift   > 0 \
                    ? r << red_shift   : r >> -red_shift; \
                g = green_shift > 0 \
                    ? g << green_shift : g >> -green_shift; \
                b = blue_shift  > 0 \
                    ? b << blue_shift  : b >> -blue_shift; \
                int pixel = (b & blue_mask)|(g & green_mask) | (r & red_mask);

#define GET_RGB

Valor:

int r = qRed  ( *p ); \
                int g = qGreen( *p ); \
                int b = qBlue ( *p++ ); \
                r = red_shift   > 0 \
                    ? r << red_shift   : r >> -red_shift; \
                g = green_shift > 0 \
                    ? g << green_shift : g >> -green_shift; \
                b = blue_shift  > 0 \
                    ? b << blue_shift  : b >> -blue_shift;

---

Documentación de las funciones

const uchar* qt_get_bitflip_array

(

)

XftDraw* XftDrawCreateAlpha	(	Display *	,
		Qt::HANDLE	,
		int
	)

---

Documentación de las variables

bool qt_has_xft

bool qt_use_xrender