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/*
* Copyright 2011, Blender Foundation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributor:
* Jeroen Bakker
* Monique Dewanchand
*/
#include "COM_ViewerOperation.h"
#include "BLI_listbase.h"
#include "BKE_image.h"
#include "BKE_scene.h"
#include "WM_api.h"
#include "WM_types.h"
#include "PIL_time.h"
#include "BLI_utildefines.h"
#include "BLI_math_color.h"
#include "BLI_math_vector.h"
extern "C" {
# include "MEM_guardedalloc.h"
# include "IMB_imbuf.h"
# include "IMB_imbuf_types.h"
# include "IMB_colormanagement.h"
}
ViewerOperation::ViewerOperation() : NodeOperation()
{
this->setImage(NULL);
this->setImageUser(NULL);
this->m_outputBuffer = NULL;
this->m_depthBuffer = NULL;
this->m_active = false;
this->m_doDepthBuffer = false;
this->m_viewSettings = NULL;
this->m_displaySettings = NULL;
this->m_useAlphaInput = false;
this->addInputSocket(COM_DT_COLOR);
this->addInputSocket(COM_DT_VALUE);
this->addInputSocket(COM_DT_VALUE);
this->m_imageInput = NULL;
this->m_alphaInput = NULL;
this->m_depthInput = NULL;
this->m_rd = NULL;
this->m_viewName = NULL;
}
void ViewerOperation::initExecution()
{
// When initializing the tree during initial load the width and height can be zero.
this->m_imageInput = getInputSocketReader(0);
this->m_alphaInput = getInputSocketReader(1);
this->m_depthInput = getInputSocketReader(2);
this->m_doDepthBuffer = (this->m_depthInput != NULL);
if (isActiveViewerOutput()) {
initImage();
}
}
void ViewerOperation::deinitExecution()
{
this->m_imageInput = NULL;
this->m_alphaInput = NULL;
this->m_depthInput = NULL;
this->m_outputBuffer = NULL;
}
void ViewerOperation::executeRegion(rcti *rect, unsigned int /*tileNumber*/)
{
float *buffer = this->m_outputBuffer;
float *depthbuffer = this->m_depthBuffer;
if (!buffer) return;
const int x1 = rect->xmin;
const int y1 = rect->ymin;
const int x2 = rect->xmax;
const int y2 = rect->ymax;
const int offsetadd = (this->getWidth() - (x2 - x1));
const int offsetadd4 = offsetadd * 4;
int offset = (y1 * this->getWidth() + x1);
int offset4 = offset * 4;
float alpha[4], depth[4];
int x;
int y;
bool breaked = false;
for (y = y1; y < y2 && (!breaked); y++) {
for (x = x1; x < x2; x++) {
this->m_imageInput->readSampled(&(buffer[offset4]), x, y, COM_PS_NEAREST);
if (this->m_useAlphaInput) {
this->m_alphaInput->readSampled(alpha, x, y, COM_PS_NEAREST);
buffer[offset4 + 3] = alpha[0];
}
this->m_depthInput->readSampled(depth, x, y, COM_PS_NEAREST);
depthbuffer[offset] = depth[0];
offset ++;
offset4 += 4;
}
if (isBreaked()) {
breaked = true;
}
offset += offsetadd;
offset4 += offsetadd4;
}
updateImage(rect);
}
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_lock_thread(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_unlock_thread(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_unlock_thread(LOCK_DRAW_IMAGE);
}
void ViewerOperation::updateImage(rcti *rect)
{
IMB_partial_display_buffer_update(this->m_ibuf, this->m_outputBuffer, NULL, getWidth(), 0, 0,
this->m_viewSettings, this->m_displaySettings,
rect->xmin, rect->ymin, rect->xmax, rect->ymax, false);
this->updateDraw();
}
const CompositorPriority ViewerOperation::getRenderPriority() const
{
if (this->isActiveViewerOutput()) {
return COM_PRIORITY_HIGH;
}
else {
return COM_PRIORITY_LOW;
}
}
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