CoreWindow *
dfb_core_create_window( CoreDFB *core )
{
CoreDFBShared *shared;
D_ASSUME( core != NULL );
if (!core)
core = core_dfb;
D_MAGIC_ASSERT( core, CoreDFB );
shared = core->shared;
D_MAGIC_ASSERT( shared, CoreDFBShared );
D_ASSERT( core->shared->window_pool != NULL );
return (CoreWindow*) fusion_object_create( core->shared->window_pool, core->world );
}
CoreGraphicsState *
dfb_core_create_graphics_state( CoreDFB *core )
{
CoreDFBShared *shared;
D_ASSUME( core != NULL );
if (!core)
core = core_dfb;
D_MAGIC_ASSERT( core, CoreDFB );
shared = core->shared;
D_MAGIC_ASSERT( shared, CoreDFBShared );
D_ASSERT( core->shared->graphics_state_pool != NULL );
return (CoreGraphicsState*) fusion_object_create( core->shared->graphics_state_pool, core->world );
}
CoreLayerRegion *
dfb_core_create_layer_region( CoreDFB *core )
{
CoreDFBShared *shared;
D_ASSUME( core != NULL );
if (!core)
core = core_dfb;
D_MAGIC_ASSERT( core, CoreDFB );
shared = core->shared;
D_MAGIC_ASSERT( shared, CoreDFBShared );
D_ASSERT( core->shared->layer_region_pool != NULL );
return (CoreLayerRegion*) fusion_object_create( core->shared->layer_region_pool, core->world );
}
DFBResult
dfb_window_create( CoreWindowStack *stack,
int x,
int y,
int width,
int height,
DFBWindowCapabilities caps,
DFBSurfaceCapabilities surface_caps,
DFBSurfacePixelFormat pixelformat,
CoreWindow **window )
{
DFBResult ret;
CoreSurface *surface;
CoreSurfacePolicy surface_policy;
CoreWindow *w;
DisplayLayer *layer = dfb_layer_at( stack->layer_id );
CoreSurface *layer_surface = dfb_layer_surface( layer );
surface_caps &= DSCAPS_INTERLACED | DSCAPS_SEPERATED |
DSCAPS_STATIC_ALLOC | DSCAPS_SYSTEMONLY | DSCAPS_VIDEOONLY;
if (caps & DWCAPS_ALPHACHANNEL) {
if (pixelformat == DSPF_UNKNOWN)
pixelformat = DSPF_ARGB;
else if (! DFB_PIXELFORMAT_HAS_ALPHA(pixelformat))
return DFB_INVARG;
surface_policy = stack->wsp_alpha;
}
else {
surface_policy = stack->wsp_opaque;
if (pixelformat == DSPF_UNKNOWN)
pixelformat = layer_surface->format;
}
if (surface_caps & DSCAPS_VIDEOONLY)
surface_policy = CSP_VIDEOONLY;
else if (surface_caps & DSCAPS_SYSTEMONLY)
surface_policy = CSP_SYSTEMONLY;
else if (layer_surface->back_buffer->policy == CSP_SYSTEMONLY)
surface_policy = CSP_SYSTEMONLY;
if (caps & DWCAPS_DOUBLEBUFFER)
surface_caps |= DSCAPS_FLIPPING;
/* Create the window object. */
w = (CoreWindow*) fusion_object_create( stack->pool );
/* Create the window's surface using the layer's palette. */
if (! (caps & DWCAPS_INPUTONLY)) {
ret = dfb_surface_create( width, height, pixelformat, surface_policy,
surface_caps, layer_surface->palette,
&surface );
if (ret) {
fusion_object_destroy( &w->object );
return ret;
}
dfb_surface_link( &w->surface, surface );
dfb_surface_unref( surface );
}
w->id = new_window_id( stack );
w->x = x;
w->y = y;
w->width = width;
w->height = height;
w->caps = caps;
w->opacity = 0;
if (caps & DWCAPS_ALPHACHANNEL)
w->options = DWOP_ALPHACHANNEL;
w->stack = stack;
w->events = DWET_ALL;
*window = w;
return DFB_OK;;
}