qscreenqnx_qws.cpp File Reference

#include "qscreenqnx_qws.h"
#include <qapplication.h>
#include <qregexp.h>
#include <gf/gf.h>

Go to the source code of this file.

Classes
struct	QQnxScreenContext

Functions
static bool	attachDevice (QQnxScreenContext *const d, const char *name)
	Attaches to the named device name. More...
static bool	attachDisplay (QQnxScreenContext *const d, int displayIndex)
	Attaches to the display at index displayIndex. More...
static bool	attachLayer (QQnxScreenContext *const d, int layerIndex)
	Attaches to the layer layerIndex. More...
static bool	createHwSurface (QQnxScreenContext *const d, int w, int h)
static bool	createMemSurface (QQnxScreenContext *const d, int w, int h)

Function Documentation

attachDevice()

static bool attachDevice ( QQnxScreenContext *const  d, const char *  name  )

inlinestatic

Attaches to the named device name.

Warning

This function is not part of the public interface.

Definition at line 177 of file qscreenqnx_qws.cpp.

Referenced by QQnxScreen::connect().

{
    int ret = gf_dev_attach(&d->device, name, &d->deviceInfo);
    if (ret != GF_ERR_OK) {
        qWarning("QQnxScreen: gf_dev_attach(%s) failed with error code %d", name, ret);
        return false;
    }
    return true;
}

attachDisplay()

static bool attachDisplay ( QQnxScreenContext *const  d, int  displayIndex  )

inlinestatic

Attaches to the display at index displayIndex.

Warning

This function is not part of the public interface.

Definition at line 194 of file qscreenqnx_qws.cpp.

Referenced by QQnxScreen::connect().

{
    int ret = gf_display_attach(&d->display, d->device, displayIndex, &d->displayInfo);
    if (ret != GF_ERR_OK) {
        qWarning("QQnxScreen: gf_display_attach(%d) failed with error code %d", displayIndex, ret);
        return false;
    }
    return true;
}

attachLayer()

static bool attachLayer ( QQnxScreenContext *const  d, int  layerIndex  )

inlinestatic

Attaches to the layer layerIndex.

Warning

This function is not part of the public interface.

Definition at line 211 of file qscreenqnx_qws.cpp.

Referenced by QQnxScreen::connect().

{
    unsigned flags = QApplication::type() != QApplication::GuiServer ? GF_LAYER_ATTACH_PASSIVE : 0;
    int ret = gf_layer_attach(&d->layer, d->display, layerIndex, flags);
    if (ret != GF_ERR_OK) {
        qWarning("QQnxScreen: gf_layer_attach(%d) failed with error code %d", layerIndex, ret);
        return false;
    }

    return true;
}

createHwSurface()

static bool createHwSurface ( QQnxScreenContext *const  d, int  w, int  h  )

inlinestatic

Warning

This function is not part of the public interface. Creates a new hardware surface (usually on the Gfx card memory) with the dimensions w * h.

Definition at line 227 of file qscreenqnx_qws.cpp.

Referenced by QQnxScreen::connect().

{
    int ret = gf_surface_create_layer(&d->hwSurface, &d->layer, 1, 0,
                                      w, h, d->displayInfo.format, 0, 0);
    if (ret != GF_ERR_OK) {
        qWarning("QQnxScreen: gf_surface_create_layer(%dx%d) failed with error code %d", w, h, ret);
        return false;
    }

    gf_layer_set_surfaces(d->layer, &d->hwSurface, 1);

    gf_layer_enable(d->layer);

    ret = gf_layer_update(d->layer, 0);
    if (ret != GF_ERR_OK) {
        qWarning("QQnxScreen: gf_layer_update() failed with error code %d\n", ret);
        return false;
    }

    ret = gf_context_create(&d->context);
    if (ret != GF_ERR_OK) {
        qWarning("QQnxScreen: gf_context_create() failed with error code %d", ret);
        return false;
    }

    ret = gf_context_set_surface(d->context, d->hwSurface);
    if (ret != GF_ERR_OK) {
        qWarning("QQnxScreen: gf_context_set_surface() failed with error code %d", ret);
        return false;
    }

    return true;
}

createMemSurface()

static bool createMemSurface ( QQnxScreenContext *const  d, int  w, int  h  )

inlinestatic

Warning

This function is not part of the public interface. Creates an in-memory, linear accessible surface of dimensions w * h. This is the main surface that QWS blits to.

Definition at line 266 of file qscreenqnx_qws.cpp.

Referenced by QQnxScreen::connect().

{
#ifndef QT_NO_QWS_MULTIPROCESS
    if (QApplication::type() != QApplication::GuiServer) {
        unsigned sidlist[64];
        int n = gf_surface_sidlist(d->device, sidlist); // undocumented API
        for (int i = 0; i < n; ++i) {
            int ret = gf_surface_attach_by_sid(&d->memSurface, d->device, sidlist[i]);
            if (ret == GF_ERR_OK) {
                gf_surface_get_info(d->memSurface, &d->memSurfaceInfo);
                if (d->memSurfaceInfo.sid != unsigned(GF_SID_INVALID)) {
                    // can we use the surface's vaddr?
                    unsigned flags = GF_SURFACE_CPU_LINEAR_READABLE | GF_SURFACE_CPU_LINEAR_WRITEABLE;
                    if ((d->memSurfaceInfo.flags & flags) == flags)
                        return true;
                }

                gf_surface_free(d->memSurface);
                d->memSurface = 0;
            }
        }
        qWarning("QQnxScreen: cannot attach to an usable surface; create a new one.");
    }
#endif
    int ret = gf_surface_create(&d->memSurface, d->device, w, h, d->displayInfo.format, 0,
                GF_SURFACE_CREATE_CPU_FAST_ACCESS | GF_SURFACE_CREATE_CPU_LINEAR_ACCESSIBLE
                | GF_SURFACE_CREATE_PHYS_CONTIG | GF_SURFACE_CREATE_SHAREABLE);
    if (ret != GF_ERR_OK) {
        qWarning("QQnxScreen: gf_surface_create(%dx%d) failed with error code %d",
                 w, h, ret);
        return false;
    }

    gf_surface_get_info(d->memSurface, &d->memSurfaceInfo);

    if (d->memSurfaceInfo.sid == unsigned(GF_SID_INVALID)) {
        qWarning("QQnxScreen: gf_surface_get_info() failed.");
        return false;
    }

    return true;
}