bool evdi_request_update(evdi_handle handle, int bufferId)
{
evdi_frame_buffer_node* front_buffer = NULL;
assert(handle);
front_buffer = findBuffer(handle, bufferId);
if (!front_buffer) {
printf("[libevdi] Buffer %d is not registered! Ignoring update request.\n", bufferId);
return false;
}
if (front_buffer->isInvalidated) {
printf("[libevdi] Buffer %d was invalidated due to mode change! Ignoring update request.\n", bufferId);
return false;
}
handle->bufferToUpdate = bufferId;
{
struct drm_evdi_request_update cmd;
const int requestResult = do_ioctl(handle->fd, DRM_IOCTL_EVDI_REQUEST_UPDATE, &cmd, "request_update");
const bool grabImmediately = requestResult == 1;
return grabImmediately;
}
}
void evdi_register_buffer(evdi_handle handle, evdi_buffer buffer)
{
assert(handle);
assert(!findBuffer(handle, buffer.id));
addFrameBuffer(handle, &buffer);
}
const char *
atom_summary(atom_t name, unsigned int maxlen)
{ PL_chars_t txt;
Buffer b;
size_t i;
if ( !get_atom_text(name, &txt) )
return NULL;
if ( txt.encoding == ENC_ISO_LATIN_1 && txt.length < maxlen )
{ const unsigned char *s = (const unsigned char*) txt.text.t;
const unsigned char *e = &s[txt.length];
for( ; s<e; s++ )
{ if ( *s >= 0x80 )
break;
}
if ( s == e )
return txt.text.t;
}
b = findBuffer(BUF_RING);
for(i=0; i<txt.length; i++)
{ char buf[6];
char *e;
e = utf8_put_char(buf, fetch_text(&txt, i));
addMultipleBuffer(b, buf, e-buf, char);
if ( i == maxlen - 6 )
{ addMultipleBuffer(b, "...", 3, char);
i = txt.length - 4;
maxlen = 0; /* make sure not to trap again */
}
}
static DWIOBUFF *findReWrBuffer(// FIND BUFFER FOR RE-WRITE
DISK_ADDR block ) // - disk block
{
DWIOBUFF *ctl;
ctl = findBuffer( block );
ctl->writing = true;
return ctl;
}
static DWIOBUFF *findRdBuffer( // FIND A BUFFER FOR READING
DISK_ADDR block ) // - disk block
{
DWIOBUFF *ctl;
ctl = findBuffer( block );
++ctl->reading;
ctl->current_offset = 0;
return ctl;
}
void evdi_unregister_buffer(evdi_handle handle, int bufferId)
{
evdi_buffer* bufferToRemove = NULL;
assert(handle);
bufferToRemove = &findBuffer(handle, bufferId)->frame_buffer;
assert(bufferToRemove);
removeFrameBuffer(handle, &bufferId);
}
void MeshCollector::append(const TileLayer &layer, const video::S3DVertex *vertices,
u32 numVertices, const u16 *indices, u32 numIndices, u8 layernum,
bool use_scale)
{
PreMeshBuffer &p = findBuffer(layer, layernum, numVertices);
f32 scale = 1.0f;
if (use_scale)
scale = 1.0f / layer.scale;
u32 vertex_count = p.vertices.size();
for (u32 i = 0; i < numVertices; i++)
p.vertices.emplace_back(vertices[i].Pos, vertices[i].Normal,
vertices[i].Color, scale * vertices[i].TCoords);
for (u32 i = 0; i < numIndices; i++)
p.indices.push_back(indices[i] + vertex_count);
}
void evdi_grab_pixels(evdi_handle handle, evdi_rect *rects, int *num_rects)
{
struct drm_clip_rect kernelDirts[MAX_DIRTS] = {};
evdi_frame_buffer_node* destinationNode = NULL;
evdi_buffer* destinationBuffer = NULL;
destinationNode = findBuffer(handle, handle->bufferToUpdate);
assert(destinationNode);
if (destinationNode->isInvalidated) {
printf("[libevdi] Buffer was invalidated due to mode change. Not grabbing.\n");
return;
}
destinationBuffer = &destinationNode->frame_buffer;
struct drm_evdi_grabpix grab = {
EVDI_GRABPIX_MODE_DIRTY,
destinationBuffer->width,
destinationBuffer->height,
destinationBuffer->stride,
destinationBuffer->buffer,
MAX_DIRTS,
kernelDirts
};
if (do_ioctl(handle->fd, DRM_IOCTL_EVDI_GRABPIX, &grab, "grabpix") == 0) {
// Buffer was filled by ioctl, now we only have to fill the dirty rects
int r = 0;
for (; r < grab.num_rects; ++r) {
rects[r].x1 = kernelDirts[r].x1;
rects[r].y1 = kernelDirts[r].y1;
rects[r].x2 = kernelDirts[r].x2;
rects[r].y2 = kernelDirts[r].y2;
}
*num_rects = grab.num_rects;
} else {
printf("[libevdi] Grabbing pixels for buffer %d failed. Should be ignored if caused by change of mode in kernel.\n", destinationBuffer->id);
}
}
void DepthBufferList::saveBuffer(uint32_t _address)
{
if (!config.frameBufferEmulation.enable)
return;
FrameBuffer * pFrameBuffer = frameBufferList().findBuffer(_address);
if (pFrameBuffer != NULL)
pFrameBuffer->m_isDepthBuffer = true;
if (m_pCurrent == NULL || m_pCurrent->m_address != _address)
m_pCurrent = findBuffer(_address);
if (m_pCurrent != NULL && pFrameBuffer != NULL && m_pCurrent->m_width != pFrameBuffer->m_width) {
removeBuffer(_address);
m_pCurrent = NULL;
}
if (m_pCurrent == NULL) {
m_list.emplace_front();
DepthBuffer & buffer = m_list.front();
buffer.m_address = _address;
buffer.m_width = pFrameBuffer != NULL ? pFrameBuffer->m_width : VI.width;
buffer.initDepthBufferTexture(pFrameBuffer);
m_pCurrent = &buffer;
}
frameBufferList().attachDepthBuffer();
#ifdef DEBUG
DebugMsg( DEBUG_HIGH | DEBUG_HANDLED, "DepthBuffer_SetBuffer( 0x%08X ); color buffer is 0x%08X\n",
address, ( pFrameBuffer != NULL && pFrameBuffer->m_FBO > 0) ? pFrameBuffer->m_startAddress : 0
);
#endif
}
