/* reading a stereo encoded ibuf (*left) and generating two ibufs from it (*left and *right) */
void IMB_ImBufFromStereo3d(
Stereo3dFormat *s3d, ImBuf *ibuf_stereo3d,
ImBuf **r_ibuf_left, ImBuf **r_ibuf_right)
{
Stereo3DData s3d_data = {{NULL}};
ImBuf *ibuf_left, *ibuf_right;
size_t width, height;
const bool is_float = (ibuf_stereo3d->rect_float != NULL);
IMB_stereo3d_read_dimensions(
s3d->display_mode, ((s3d->flag & S3D_SQUEEZED_FRAME) == 0), ibuf_stereo3d->x, ibuf_stereo3d->y,
&width, &height);
ibuf_left = IMB_allocImBuf(width, height, ibuf_stereo3d->planes, (is_float ? IB_rectfloat : IB_rect));
ibuf_right = IMB_allocImBuf(width, height, ibuf_stereo3d->planes, (is_float ? IB_rectfloat : IB_rect));
/* copy flags for IB_fields and other settings */
ibuf_left->flags = ibuf_stereo3d->flags;
ibuf_right->flags = ibuf_stereo3d->flags;
/* we always work with unsqueezed formats */
IMB_stereo3d_write_dimensions(
s3d->display_mode, ((s3d->flag & S3D_SQUEEZED_FRAME) == 0), ibuf_stereo3d->x, ibuf_stereo3d->y,
&width, &height);
imb_stereo3d_unsqueeze_ImBuf(ibuf_stereo3d, s3d, width, height);
imb_stereo3d_data_initialize(
&s3d_data, is_float, ibuf_left->x, ibuf_left->y, 4,
(int *)ibuf_left->rect, (int *)ibuf_right->rect, (int *)ibuf_stereo3d->rect,
ibuf_left->rect_float, ibuf_right->rect_float, ibuf_stereo3d->rect_float);
imb_stereo3d_read_doit(&s3d_data, s3d);
if (ibuf_stereo3d->flags & (IB_zbuf | IB_zbuffloat)) {
if (is_float) {
addzbuffloatImBuf(ibuf_left);
addzbuffloatImBuf(ibuf_right);
}
else {
addzbufImBuf(ibuf_left);
addzbufImBuf(ibuf_right);
}
imb_stereo3d_data_initialize(
&s3d_data, is_float, ibuf_left->x, ibuf_left->y, 1,
(int *)ibuf_left->zbuf, (int *)ibuf_right->zbuf, (int *)ibuf_stereo3d->zbuf,
ibuf_left->zbuf_float, ibuf_right->zbuf_float, ibuf_stereo3d->zbuf_float);
imb_stereo3d_read_doit(&s3d_data, s3d);
}
IMB_freeImBuf(ibuf_stereo3d);
*r_ibuf_left = ibuf_left;
*r_ibuf_right = ibuf_right;
}
void ViewerOperation::initImage()
{
Image *ima = this->m_image;
ImageUser iuser = *this->m_imageUser;
void *lock;
ImBuf *ibuf;
/* make sure the image has the correct number of views */
if (ima && BKE_scene_multiview_is_render_view_first(this->m_rd, this->m_viewName)) {
BKE_image_verify_viewer_views(this->m_rd, ima, this->m_imageUser);
}
BLI_thread_lock(LOCK_DRAW_IMAGE);
/* local changes to the original ImageUser */
iuser.multi_index = BKE_scene_multiview_view_id_get(this->m_rd, this->m_viewName);
ibuf = BKE_image_acquire_ibuf(ima, &iuser, &lock);
if (!ibuf) {
BLI_thread_unlock(LOCK_DRAW_IMAGE);
return;
}
if (ibuf->x != (int)getWidth() || ibuf->y != (int)getHeight()) {
imb_freerectImBuf(ibuf);
imb_freerectfloatImBuf(ibuf);
IMB_freezbuffloatImBuf(ibuf);
ibuf->x = getWidth();
ibuf->y = getHeight();
/* zero size can happen if no image buffers exist to define a sensible resolution */
if (ibuf->x > 0 && ibuf->y > 0)
imb_addrectfloatImBuf(ibuf);
ima->ok = IMA_OK_LOADED;
ibuf->userflags |= IB_DISPLAY_BUFFER_INVALID;
}
if (m_doDepthBuffer) {
addzbuffloatImBuf(ibuf);
}
/* now we combine the input with ibuf */
this->m_outputBuffer = ibuf->rect_float;
/* needed for display buffer update */
this->m_ibuf = ibuf;
if (m_doDepthBuffer) {
this->m_depthBuffer = ibuf->zbuf_float;
}
BKE_image_release_ibuf(this->m_image, this->m_ibuf, lock);
BLI_thread_unlock(LOCK_DRAW_IMAGE);
}
ImBuf *IMB_allocImBuf(unsigned int x, unsigned int y, uchar planes, unsigned int flags)
{
ImBuf *ibuf;
ibuf = MEM_callocN(sizeof(ImBuf), "ImBuf_struct");
if (ibuf) {
ibuf->x = x;
ibuf->y = y;
ibuf->planes = planes;
ibuf->ftype = IMB_FTYPE_PNG;
ibuf->foptions.quality = 15; /* the 15 means, set compression to low ratio but not time consuming */
ibuf->channels = 4; /* float option, is set to other values when buffers get assigned */
ibuf->ppm[0] = ibuf->ppm[1] = IMB_DPI_DEFAULT / 0.0254f; /* IMB_DPI_DEFAULT -> pixels-per-meter */
if (flags & IB_rect) {
if (imb_addrectImBuf(ibuf) == false) {
IMB_freeImBuf(ibuf);
return NULL;
}
}
if (flags & IB_rectfloat) {
if (imb_addrectfloatImBuf(ibuf) == false) {
IMB_freeImBuf(ibuf);
return NULL;
}
}
if (flags & IB_zbuf) {
if (addzbufImBuf(ibuf) == false) {
IMB_freeImBuf(ibuf);
return NULL;
}
}
if (flags & IB_zbuffloat) {
if (addzbuffloatImBuf(ibuf) == false) {
IMB_freeImBuf(ibuf);
return NULL;
}
}
/* assign default spaces */
colormanage_imbuf_set_default_spaces(ibuf);
}
return (ibuf);
}
void ViewerOperation::initImage()
{
Image *ima = this->m_image;
void *lock;
ImBuf *ibuf = BKE_image_acquire_ibuf(ima, this->m_imageUser, &lock);
if (!ibuf) return;
BLI_lock_thread(LOCK_DRAW_IMAGE);
if (ibuf->x != (int)getWidth() || ibuf->y != (int)getHeight()) {
imb_freerectImBuf(ibuf);
imb_freerectfloatImBuf(ibuf);
IMB_freezbuffloatImBuf(ibuf);
ibuf->x = getWidth();
ibuf->y = getHeight();
imb_addrectfloatImBuf(ibuf);
ima->ok = IMA_OK_LOADED;
ibuf->userflags |= IB_DISPLAY_BUFFER_INVALID;
}
if (m_doDepthBuffer) {
addzbuffloatImBuf(ibuf);
}
BLI_unlock_thread(LOCK_DRAW_IMAGE);
/* now we combine the input with ibuf */
this->m_outputBuffer = ibuf->rect_float;
/* needed for display buffer update */
this->m_ibuf = ibuf;
if (m_doDepthBuffer) {
this->m_depthBuffer = ibuf->zbuf_float;
}
BKE_image_release_ibuf(this->m_image, this->m_ibuf, lock);
}