DFBResult
dfb_surface_unlock_buffer( CoreSurface *surface,
CoreSurfaceBufferLock *lock )
{
DFBResult ret;
D_MAGIC_ASSERT( surface, CoreSurface );
ret = dfb_surface_buffer_unlock( lock );
return ret;
}
DFBResult
dfb_surface_unlock_buffer( CoreSurface *surface,
CoreSurfaceBufferLock *lock )
{
DFBResult ret;
D_MAGIC_ASSERT( surface, CoreSurface );
if (fusion_skirmish_prevail( &surface->lock ))
return DFB_FUSION;
ret = dfb_surface_buffer_unlock( lock );
fusion_skirmish_dismiss( &surface->lock );
return ret;
}
DFBResult
dfb_layer_region_flip_update( CoreLayerRegion *region,
const DFBRegion *update,
DFBSurfaceFlipFlags flags )
{
DFBResult ret = DFB_OK;
CoreLayer *layer;
CoreLayerContext *context;
CoreSurface *surface;
const DisplayLayerFuncs *funcs;
if (update)
D_DEBUG_AT( Core_Layers,
"dfb_layer_region_flip_update( %p, %p, 0x%08x ) <- [%d, %d - %dx%d]\n",
region, update, flags, DFB_RECTANGLE_VALS_FROM_REGION( update ) );
else
D_DEBUG_AT( Core_Layers,
"dfb_layer_region_flip_update( %p, %p, 0x%08x )\n", region, update, flags );
D_ASSERT( region != NULL );
D_ASSERT( region->context != NULL );
/* Lock the region. */
if (dfb_layer_region_lock( region ))
return DFB_FUSION;
D_ASSUME( region->surface != NULL );
/* Check for NULL surface. */
if (!region->surface) {
D_DEBUG_AT( Core_Layers, " -> No surface => no update!\n" );
dfb_layer_region_unlock( region );
return DFB_UNSUPPORTED;
}
context = region->context;
surface = region->surface;
layer = dfb_layer_at( context->layer_id );
D_ASSERT( layer->funcs != NULL );
funcs = layer->funcs;
/* Unfreeze region? */
if (D_FLAGS_IS_SET( region->state, CLRSF_FROZEN )) {
D_FLAGS_CLEAR( region->state, CLRSF_FROZEN );
if (D_FLAGS_IS_SET( region->state, CLRSF_REALIZED )) {
ret = set_region( region, ®ion->config, CLRCF_ALL, surface );
if (ret)
D_DERROR( ret, "Core/LayerRegion: set_region() in dfb_layer_region_flip_update() failed!\n" );
}
else if (D_FLAGS_ARE_SET( region->state, CLRSF_ENABLED | CLRSF_ACTIVE )) {
ret = realize_region( region );
if (ret)
D_DERROR( ret, "Core/LayerRegion: realize_region() in dfb_layer_region_flip_update() failed!\n" );
}
if (ret) {
dfb_layer_region_unlock( region );
return ret;
}
}
/* Depending on the buffer mode... */
switch (region->config.buffermode) {
case DLBM_TRIPLE:
case DLBM_BACKVIDEO:
/* Check if simply swapping the buffers is possible... */
if (!(flags & DSFLIP_BLIT) && !context->rotation &&
(!update || (update->x1 == 0 &&
update->y1 == 0 &&
update->x2 == surface->config.size.w - 1 &&
update->y2 == surface->config.size.h - 1)))
{
D_DEBUG_AT( Core_Layers, " -> Going to swap buffers...\n" );
ret = dfb_surface_lock( surface );
if (ret)
break;
/* Use the driver's routine if the region is realized. */
if (D_FLAGS_IS_SET( region->state, CLRSF_REALIZED )) {
CoreSurfaceBuffer *buffer;
D_ASSUME( funcs->FlipRegion != NULL );
buffer = dfb_surface_get_buffer( surface, CSBR_BACK );
D_MAGIC_ASSERT( buffer, CoreSurfaceBuffer );
if (region->surface_lock.buffer)
dfb_surface_buffer_unlock( ®ion->surface_lock );
D_DEBUG_AT( Core_Layers, " -> Waiting for pending writes...\n" );
dfb_surface_buffer_lock( buffer, CSAF_CPU_READ | CSAF_GPU_READ,
®ion->surface_lock );
D_DEBUG_AT( Core_Layers, " -> Flipping region using driver...\n" );
if (funcs->FlipRegion)
ret = funcs->FlipRegion( layer,
layer->driver_data,
layer->layer_data,
region->region_data,
surface, flags, ®ion->surface_lock );
}
else {
D_DEBUG_AT( Core_Layers, " -> Flipping region not using driver...\n" );
/* Just do the hardware independent work. */
dfb_surface_flip( surface, false );
}
dfb_surface_unlock( surface );
break;
}
/* fall through */
case DLBM_BACKSYSTEM:
D_DEBUG_AT( Core_Layers, " -> Going to copy portion...\n" );
if ((flags & DSFLIP_WAITFORSYNC) == DSFLIP_WAITFORSYNC) {
D_DEBUG_AT( Core_Layers, " -> Waiting for VSync...\n" );
dfb_layer_wait_vsync( layer );
}
D_DEBUG_AT( Core_Layers, " -> Copying content from back to front buffer...\n" );
/* ...or copy updated contents from back to front buffer. */
if (context->rotation == 180)
dfb_back_to_front_copy_180( surface, update );
else
dfb_back_to_front_copy( surface, update );
if ((flags & DSFLIP_WAITFORSYNC) == DSFLIP_WAIT) {
D_DEBUG_AT( Core_Layers, " -> Waiting for VSync...\n" );
dfb_layer_wait_vsync( layer );
}
/* fall through */
case DLBM_FRONTONLY:
/* Tell the driver about the update if the region is realized. */
if (funcs->UpdateRegion && D_FLAGS_IS_SET( region->state, CLRSF_REALIZED )) {
if (region->surface) {
CoreSurfaceAllocation *allocation;
allocation = region->surface_lock.allocation;
D_ASSERT( allocation != NULL );
/* If hardware has written or is writing... */
if (allocation->accessed & CSAF_GPU_WRITE) {
D_DEBUG_AT( Core_Layers, " -> Waiting for pending writes...\n" );
/* ...wait for the operation to finish. */
dfb_gfxcard_sync(); /* TODO: wait for serial instead */
allocation->accessed &= ~CSAF_GPU_WRITE;
}
}
D_DEBUG_AT( Core_Layers, " -> Notifying driver about updated content...\n" );
ret = funcs->UpdateRegion( layer,
layer->driver_data,
layer->layer_data,
region->region_data,
surface, update, ®ion->surface_lock );
}
break;
default:
D_BUG("unknown buffer mode");
ret = DFB_BUG;
}
D_DEBUG_AT( Core_Layers, " -> done.\n" );
/* Unlock the region. */
dfb_layer_region_unlock( region );
return ret;
}
static DFBResult
set_region( CoreLayerRegion *region,
CoreLayerRegionConfig *config,
CoreLayerRegionConfigFlags flags,
CoreSurface *surface )
{
DFBResult ret = DFB_OK;
CoreLayer *layer;
const DisplayLayerFuncs *funcs;
D_ASSERT( region != NULL );
D_ASSERT( region->context != NULL );
D_ASSERT( config != NULL );
D_ASSERT( config->buffermode != DLBM_WINDOWS );
D_ASSERT( D_FLAGS_IS_SET( region->state, CLRSF_REALIZED ) );
layer = dfb_layer_at( region->context->layer_id );
D_ASSERT( layer != NULL );
D_ASSERT( layer->funcs != NULL );
D_ASSERT( layer->funcs->SetRegion != NULL );
if (region->state & CLRSF_FROZEN)
return DFB_OK;
funcs = layer->funcs;
if (surface) {
if (flags & (CLRCF_SURFACE | CLRCF_WIDTH | CLRCF_HEIGHT | CLRCF_FORMAT)) {
if (region->surface_lock.buffer) {
CoreSurfaceBuffer *buffer = region->surface_lock.buffer;
D_MAGIC_ASSERT( buffer, CoreSurfaceBuffer );
if (surface == buffer->surface) {
if (dfb_surface_lock( surface ))
return DFB_FUSION;
dfb_surface_buffer_unlock( ®ion->surface_lock );
buffer = dfb_surface_get_buffer( surface, CSBR_FRONT );
D_MAGIC_ASSERT( buffer, CoreSurfaceBuffer );
ret = dfb_surface_buffer_lock( buffer, CSAF_CPU_READ | CSAF_GPU_READ,
®ion->surface_lock );
dfb_surface_unlock( surface );
}
else {
dfb_surface_unlock_buffer( buffer->surface, ®ion->surface_lock );
ret = dfb_surface_lock_buffer( surface, CSBR_FRONT, CSAF_CPU_READ | CSAF_GPU_READ,
®ion->surface_lock );
}
}
else
ret = dfb_surface_lock_buffer( surface, CSBR_FRONT, CSAF_CPU_READ | CSAF_GPU_READ,
®ion->surface_lock );
}
if (ret) {
D_DERROR( ret, "Core/LayerRegion: Could not lock region surface for SetRegion()!\n" );
return ret;
}
D_ASSERT( region->surface_lock.buffer != NULL );
}
else if (region->surface_lock.buffer) {
D_MAGIC_ASSERT( region->surface_lock.buffer, CoreSurfaceBuffer );
dfb_surface_unlock_buffer( region->surface_lock.buffer->surface, ®ion->surface_lock );
}
/* Setup hardware. */
return funcs->SetRegion( layer, layer->driver_data, layer->layer_data,
region->region_data, config, flags,
surface, surface ? surface->palette : NULL, ®ion->surface_lock );
}
static DFBResult
update_screen( int x, int y, int w, int h )
{
#if 0
int i, n;
void *dst;
void *src;
DFBResult ret;
CoreSurface *surface;
CoreSurfaceBuffer *buffer;
CoreSurfaceBufferLock lock;
u16 *src16, *dst16;
u8 *src8;
#endif
D_DEBUG_AT( SDL_Updates, "%s( %d, %d, %d, %d )\n", __FUNCTION__, x, y, w, h );
D_DEBUG_AT( SDL_Updates, " -> locking sdl lock...\n" );
fusion_skirmish_prevail( &dfb_sdl->lock );
#if 0
surface = dfb_sdl->primary;
D_MAGIC_ASSERT_IF( surface, CoreSurface );
D_DEBUG_AT( SDL_Updates, " -> primary is %p\n", surface );
if (!surface) {
D_DEBUG_AT( SDL_Updates, " -> unlocking sdl lock...\n" );
fusion_skirmish_dismiss( &dfb_sdl->lock );
D_DEBUG_AT( SDL_Updates, " -> done.\n" );
return DFB_OK;
}
buffer = dfb_surface_get_buffer( surface, CSBR_FRONT );
D_MAGIC_ASSERT( buffer, CoreSurfaceBuffer );
D_DEBUG_AT( SDL_Updates, " -> locking sdl surface...\n" );
if (SDL_LockSurface( screen ) < 0) {
D_ERROR( "DirectFB/SDL: "
"Couldn't lock the display surface: %s\n", SDL_GetError() );
fusion_skirmish_dismiss( &dfb_sdl->lock );
return DFB_FAILURE;
}
D_DEBUG_AT( SDL_Updates, " -> locking dfb surface...\n" );
ret = dfb_surface_buffer_lock( buffer, CSAF_CPU_READ, &lock );
if (ret) {
D_ERROR( "DirectFB/SDL: Couldn't lock layer surface: %s\n",
DirectFBErrorString( ret ) );
SDL_UnlockSurface(screen);
fusion_skirmish_dismiss( &dfb_sdl->lock );
return ret;
}
src = lock.addr;
dst = screen->pixels;
src += DFB_BYTES_PER_LINE( surface->config.format, x ) + y * lock.pitch;
dst += DFB_BYTES_PER_LINE( surface->config.format, x ) + y * screen->pitch;
D_DEBUG_AT( SDL_Updates, " -> copying pixels...\n" );
switch (screen->format->BitsPerPixel) {
case 16:
dfb_convert_to_rgb16( surface->config.format,
src, lock.pitch, surface->config.size.h,
dst, screen->pitch, w, h );
break;
default:
direct_memcpy( dst, src, DFB_BYTES_PER_LINE( surface->config.format, w ) );
}
D_DEBUG_AT( SDL_Updates, " -> unlocking dfb surface...\n" );
dfb_surface_buffer_unlock( &lock );
D_DEBUG_AT( SDL_Updates, " -> unlocking sdl surface...\n" );
SDL_UnlockSurface( screen );
#endif
D_DEBUG_AT( SDL_Updates, " -> calling SDL_UpdateRect()...\n" );
SDL_UpdateRect( dfb_sdl->screen, x, y, w, h );
D_DEBUG_AT( SDL_Updates, " -> unlocking sdl lock...\n" );
fusion_skirmish_dismiss( &dfb_sdl->lock );
D_DEBUG_AT( SDL_Updates, " -> done.\n" );
return DFB_OK;
}