DFBResult dfb_surfacemanager_assure_video( SurfaceManager *manager,
SurfaceBuffer *buffer )
{
DFBResult ret;
CoreSurface *surface = buffer->surface;
D_MAGIC_ASSERT( manager, SurfaceManager );
if (manager->suspended)
return DFB_NOVIDEOMEMORY;
switch (buffer->video.health) {
case CSH_STORED:
if (buffer->video.chunk)
buffer->video.chunk->tolerations = 0;
return DFB_OK;
case CSH_INVALID:
ret = dfb_surfacemanager_allocate( manager, buffer );
if (ret)
return ret;
/* FALL THROUGH, because after successful allocation
the surface health is CSH_RESTORE */
case CSH_RESTORE:
if (buffer->system.health != CSH_STORED)
D_BUG( "system/video instances both not stored!" );
if (buffer->flags & SBF_WRITTEN) {
int i;
char *src = buffer->system.addr;
char *dst = dfb_system_video_memory_virtual( buffer->video.offset );
for (i=0; i<surface->height; i++) {
direct_memcpy( dst, src,
DFB_BYTES_PER_LINE(buffer->format, surface->width) );
src += buffer->system.pitch;
dst += buffer->video.pitch;
}
if (buffer->format == DSPF_YV12 || buffer->format == DSPF_I420) {
for (i=0; i<surface->height; i++) {
direct_memcpy( dst, src, DFB_BYTES_PER_LINE(buffer->format,
surface->width / 2) );
src += buffer->system.pitch / 2;
dst += buffer->video.pitch / 2;
}
}
else if (buffer->format == DSPF_NV12 || buffer->format == DSPF_NV21) {
for (i=0; i<surface->height/2; i++) {
direct_memcpy( dst, src, DFB_BYTES_PER_LINE(buffer->format,
surface->width) );
src += buffer->system.pitch;
dst += buffer->video.pitch;
}
}
else if (buffer->format == DSPF_NV16) {
for (i=0; i<surface->height; i++) {
direct_memcpy( dst, src, DFB_BYTES_PER_LINE(buffer->format,
surface->width) );
src += buffer->system.pitch;
dst += buffer->video.pitch;
}
}
}
buffer->video.health = CSH_STORED;
buffer->video.chunk->tolerations = 0;
dfb_surface_notify_listeners( surface, CSNF_VIDEO );
return DFB_OK;
default:
break;
}
D_BUG( "unknown video instance health" );
return DFB_BUG;
}
DFBResult dfb_surfacemanager_assure_system( SurfaceManager *manager,
SurfaceBuffer *buffer )
{
CoreSurface *surface = buffer->surface;
D_MAGIC_ASSERT( manager, SurfaceManager );
if (buffer->policy == CSP_VIDEOONLY) {
D_BUG( "surface_manager_assure_system() called on video only surface" );
return DFB_BUG;
}
if (buffer->system.health == CSH_STORED)
return DFB_OK;
else if (buffer->video.health == CSH_STORED) {
int i;
char *src = dfb_system_video_memory_virtual( buffer->video.offset );
char *dst = buffer->system.addr;
/* from video_access_by_software() in surface.c */
if (buffer->video.access & VAF_HARDWARE_WRITE) {
dfb_gfxcard_sync();
buffer->video.access &= ~VAF_HARDWARE_WRITE;
}
buffer->video.access |= VAF_SOFTWARE_READ;
for (i=0; i<surface->height; i++) {
direct_memcpy( dst, src, DFB_BYTES_PER_LINE(buffer->format, surface->width) );
src += buffer->video.pitch;
dst += buffer->system.pitch;
}
if (buffer->format == DSPF_YV12 || buffer->format == DSPF_I420) {
for (i=0; i<surface->height; i++) {
direct_memcpy( dst, src, DFB_BYTES_PER_LINE(buffer->format,
surface->width / 2) );
src += buffer->video.pitch / 2;
dst += buffer->system.pitch / 2;
}
}
else if (buffer->format == DSPF_NV12 || buffer->format == DSPF_NV21) {
for (i=0; i<surface->height/2; i++) {
direct_memcpy( dst, src, DFB_BYTES_PER_LINE(buffer->format,
surface->width) );
src += buffer->video.pitch;
dst += buffer->system.pitch;
}
}
else if (buffer->format == DSPF_NV16) {
for (i=0; i<surface->height; i++) {
direct_memcpy( dst, src, DFB_BYTES_PER_LINE(buffer->format,
surface->width) );
src += buffer->video.pitch;
dst += buffer->system.pitch;
}
}
buffer->system.health = CSH_STORED;
dfb_surface_notify_listeners( surface, CSNF_SYSTEM );
return DFB_OK;
}
D_BUG( "no valid surface instance" );
return DFB_BUG;
}
static void
ep9xEngineReset(void *drv, void *dev)
{
memset((void*)dfb_system_video_memory_virtual(0),0,dfb_gfxcard_memory_length());
}
