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qpixmap_x11.cpp File Reference

(02de77535f2a94cbeb7e0ea01895ba4e556e165c)

#include <QGuiApplication>
#include <private/qdrawhelper_p.h>
#include <private/qimage_p.h>
#include <private/qimagepixmapcleanuphooks_p.h>
#include "qxcbnativepainting.h"
#include "qpixmap_x11_p.h"
#include "qcolormap_x11_p.h"
#include "qpaintengine_x11_p.h"
Include dependency graph for qpixmap_x11.cpp:

Go to the source code of this file.

Classes

struct  QXImageWrapper
struct  QX11AlphaDetector

Macros

#define GET_PIXEL
#define GET_PIXEL_DITHER_TC
#define GET_PIXEL_DITHER_TC_OPT(red_shift, green_shift, blue_shift, red_mask, green_mask, blue_mask, rbits, gbits, bbits)
#define CYCLE(body)

Functions

QT_BEGIN_NAMESPACE Q_ALWAYS_INLINE uint PREMUL (uint x)
QPixmap qt_toX11Pixmap (const QImage &image)
QPixmap qt_toX11Pixmap (const QPixmap &pixmap)
static void qSafeXDestroyImage (XImage *x)
Drawable qt_x11Handle (const QPixmap &pixmap)
static int highest_bit (uint v)
static uint n_bits (uint v)
static void cleanup_scale_tables ()
static void build_scale_table (uint **table, uint nBits)
int qt_x11SetDefaultScreen (int screen)
void qt_x11SetScreen (QPixmap &pixmap, int screen)

Variables

static uint * red_scale_table = nullptr
static uint * green_scale_table = nullptr
static uint * blue_scale_table = nullptr
static int defaultScreen = -1
QBasicAtomicInt qt_pixmap_serial = Q_BASIC_ATOMIC_INITIALIZER(0)
int Q_GUI_EXPORT qt_x11_preferred_pixmap_depth = 0

Macro Definition Documentation

◆ CYCLE

#define CYCLE ( body)
Value:
for (int y=0; y<h; y++) { \
const uchar* src = cimage.scanLine(y); \
uchar* dst = newbits + xi->bytes_per_line*y; \
const QRgb* p = (const QRgb *)src; \
body \
}
src
GLenum src
Definition qopengles2ext.h:335
dst
GLenum GLenum dst
Definition qopengles2ext.h:335
y
GLint y
Definition qopengles2ext.h:206
h
GLfloat GLfloat GLfloat GLfloat h
Definition qopengles2ext.h:789
p
GLfloat GLfloat p
Definition qopenglext.h:12698
QRgb
QT_BEGIN_NAMESPACE typedef unsigned int QRgb
Definition qrgb.h:13
uchar
unsigned char uchar
Definition qtypes.h:37

◆ GET_PIXEL

#define GET_PIXEL
Value:
uint pixel; \
if (d8) pixel = pix[*src++]; \
else { \
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; \
pixel = (r & red_mask)|(g & green_mask) | (b & blue_mask) \
| ~(blue_mask | green_mask | red_mask); \
}
b
GLboolean GLboolean GLboolean b
Definition qopengles2ext.h:337
r
GLboolean r
Definition qopengles2ext.h:337
g
GLboolean GLboolean g
Definition qopengles2ext.h:337
qBlue
constexpr uint qBlue(QRgba64 rgb)
Definition qrgba64.h:206
qRed
constexpr uint qRed(QRgba64 rgb)
Definition qrgba64.h:200
qGreen
constexpr uint qGreen(QRgba64 rgb)
Definition qrgba64.h:203
uint
unsigned int uint
Definition qtypes.h:39

◆ GET_PIXEL_DITHER_TC

#define GET_PIXEL_DITHER_TC
Value:
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; \
uint pixel = (r & red_mask)|(g & green_mask) | (b & blue_mask);
D
#define D(i, j)
x
GLint GLint GLint GLint GLint x
Definition qopengles2ext.h:605

◆ GET_PIXEL_DITHER_TC_OPT

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

Function Documentation

◆ build_scale_table()

void build_scale_table ( uint ** table,
uint nBits )
static

Definition at line 265 of file qpixmap_x11.cpp.

References cleanup_scale_tables().

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◆ cleanup_scale_tables()

void cleanup_scale_tables ( )
static

Definition at line 254 of file qpixmap_x11.cpp.

References blue_scale_table, green_scale_table, and red_scale_table.

Referenced by build_scale_table().

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◆ highest_bit()

int highest_bit ( uint v)
static

Definition at line 230 of file qpixmap_x11.cpp.

Referenced by QX11PlatformPixmap::fromImage().

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◆ n_bits()

uint n_bits ( uint v)
static

Definition at line 240 of file qpixmap_x11.cpp.

Referenced by QX11PlatformPixmap::fromImage().

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◆ PREMUL()

QT_BEGIN_NAMESPACE Q_ALWAYS_INLINE uint PREMUL ( uint x)

Definition at line 30 of file qpixmap_x11.cpp.

◆ qSafeXDestroyImage()

void qSafeXDestroyImage ( XImage * x)
inlinestatic

Definition at line 77 of file qpixmap_x11.cpp.

Referenced by QX11PlatformPixmap::fromImage(), QX11PlatformPixmap::toImage(), and QX11PlatformPixmap::transformed().

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◆ qt_toX11Pixmap() [1/2]

QPixmap qt_toX11Pixmap ( const QImage & image)

Definition at line 51 of file qpixmap_x11.cpp.

◆ qt_toX11Pixmap() [2/2]

QPixmap qt_toX11Pixmap ( const QPixmap & pixmap)

Definition at line 63 of file qpixmap_x11.cpp.

◆ qt_x11Handle()

Drawable qt_x11Handle ( const QPixmap & pixmap)

Definition at line 211 of file qpixmap_x11.cpp.

References QX11PlatformPixmap::handle().

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◆ qt_x11SetDefaultScreen()

int qt_x11SetDefaultScreen ( int screen)

Definition at line 288 of file qpixmap_x11.cpp.

References defaultScreen.

Referenced by QX11PaintEngine::drawTiledPixmap(), and QXcbX11Info::qt_x11SetScreen.

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◆ qt_x11SetScreen()

void qt_x11SetScreen ( QPixmap & pixmap,
int screen )

Definition at line 295 of file qpixmap_x11.cpp.

Variable Documentation

◆ blue_scale_table

uint * blue_scale_table = nullptr
static

Definition at line 252 of file qpixmap_x11.cpp.

Referenced by cleanup_scale_tables().

◆ defaultScreen

int defaultScreen = -1
static

Definition at line 286 of file qpixmap_x11.cpp.

Referenced by qt_x11SetDefaultScreen().

◆ green_scale_table

uint * green_scale_table = nullptr
static

Definition at line 251 of file qpixmap_x11.cpp.

Referenced by cleanup_scale_tables().

◆ qt_pixmap_serial

QBasicAtomicInt qt_pixmap_serial = Q_BASIC_ATOMIC_INITIALIZER(0)

Definition at line 332 of file qpixmap_x11.cpp.

◆ qt_x11_preferred_pixmap_depth

int Q_GUI_EXPORT qt_x11_preferred_pixmap_depth = 0

Definition at line 333 of file qpixmap_x11.cpp.

◆ red_scale_table

uint * red_scale_table = nullptr
static

Definition at line 250 of file qpixmap_x11.cpp.

Referenced by cleanup_scale_tables().