150 lines
4.7 KiB
C++
150 lines
4.7 KiB
C++
/*
|
|
* 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.
|
|
*
|
|
* Copyright 2011, Blender Foundation.
|
|
*/
|
|
|
|
#include "COM_PreviewOperation.h"
|
|
#include "BLI_listbase.h"
|
|
#include "BKE_image.h"
|
|
#include "WM_api.h"
|
|
#include "WM_types.h"
|
|
#include "PIL_time.h"
|
|
#include "BLI_utildefines.h"
|
|
#include "BLI_math_color.h"
|
|
#include "COM_defines.h"
|
|
#include "BLI_math.h"
|
|
#include "MEM_guardedalloc.h"
|
|
extern "C" {
|
|
#include "IMB_imbuf.h"
|
|
#include "IMB_imbuf_types.h"
|
|
#include "IMB_colormanagement.h"
|
|
#include "BKE_node.h"
|
|
}
|
|
|
|
PreviewOperation::PreviewOperation(const ColorManagedViewSettings *viewSettings,
|
|
const ColorManagedDisplaySettings *displaySettings)
|
|
: NodeOperation()
|
|
{
|
|
this->addInputSocket(COM_DT_COLOR, COM_SC_NO_RESIZE);
|
|
this->m_preview = NULL;
|
|
this->m_outputBuffer = NULL;
|
|
this->m_input = NULL;
|
|
this->m_divider = 1.0f;
|
|
this->m_viewSettings = viewSettings;
|
|
this->m_displaySettings = displaySettings;
|
|
}
|
|
|
|
void PreviewOperation::verifyPreview(bNodeInstanceHash *previews, bNodeInstanceKey key)
|
|
{
|
|
/* Size (0, 0) ensures the preview rect is not allocated in advance,
|
|
* this is set later in initExecution once the resolution is determined.
|
|
*/
|
|
this->m_preview = BKE_node_preview_verify(previews, key, 0, 0, true);
|
|
}
|
|
|
|
void PreviewOperation::initExecution()
|
|
{
|
|
this->m_input = getInputSocketReader(0);
|
|
|
|
if (this->getWidth() == (unsigned int)this->m_preview->xsize &&
|
|
this->getHeight() == (unsigned int)this->m_preview->ysize) {
|
|
this->m_outputBuffer = this->m_preview->rect;
|
|
}
|
|
|
|
if (this->m_outputBuffer == NULL) {
|
|
this->m_outputBuffer = (unsigned char *)MEM_callocN(
|
|
sizeof(unsigned char) * 4 * getWidth() * getHeight(), "PreviewOperation");
|
|
if (this->m_preview->rect) {
|
|
MEM_freeN(this->m_preview->rect);
|
|
}
|
|
this->m_preview->xsize = getWidth();
|
|
this->m_preview->ysize = getHeight();
|
|
this->m_preview->rect = this->m_outputBuffer;
|
|
}
|
|
}
|
|
|
|
void PreviewOperation::deinitExecution()
|
|
{
|
|
this->m_outputBuffer = NULL;
|
|
this->m_input = NULL;
|
|
}
|
|
|
|
void PreviewOperation::executeRegion(rcti *rect, unsigned int /*tileNumber*/)
|
|
{
|
|
int offset;
|
|
float color[4];
|
|
struct ColormanageProcessor *cm_processor;
|
|
|
|
cm_processor = IMB_colormanagement_display_processor_new(this->m_viewSettings,
|
|
this->m_displaySettings);
|
|
|
|
for (int y = rect->ymin; y < rect->ymax; y++) {
|
|
offset = (y * getWidth() + rect->xmin) * 4;
|
|
for (int x = rect->xmin; x < rect->xmax; x++) {
|
|
float rx = floor(x / this->m_divider);
|
|
float ry = floor(y / this->m_divider);
|
|
|
|
color[0] = 0.0f;
|
|
color[1] = 0.0f;
|
|
color[2] = 0.0f;
|
|
color[3] = 1.0f;
|
|
this->m_input->readSampled(color, rx, ry, COM_PS_NEAREST);
|
|
IMB_colormanagement_processor_apply_v4(cm_processor, color);
|
|
rgba_float_to_uchar(this->m_outputBuffer + offset, color);
|
|
offset += 4;
|
|
}
|
|
}
|
|
|
|
IMB_colormanagement_processor_free(cm_processor);
|
|
}
|
|
bool PreviewOperation::determineDependingAreaOfInterest(rcti *input,
|
|
ReadBufferOperation *readOperation,
|
|
rcti *output)
|
|
{
|
|
rcti newInput;
|
|
|
|
newInput.xmin = input->xmin / this->m_divider;
|
|
newInput.xmax = input->xmax / this->m_divider;
|
|
newInput.ymin = input->ymin / this->m_divider;
|
|
newInput.ymax = input->ymax / this->m_divider;
|
|
|
|
return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output);
|
|
}
|
|
void PreviewOperation::determineResolution(unsigned int resolution[2],
|
|
unsigned int preferredResolution[2])
|
|
{
|
|
NodeOperation::determineResolution(resolution, preferredResolution);
|
|
int width = resolution[0];
|
|
int height = resolution[1];
|
|
this->m_divider = 0.0f;
|
|
if (width > height) {
|
|
this->m_divider = COM_PREVIEW_SIZE / (width - 1);
|
|
}
|
|
else {
|
|
this->m_divider = COM_PREVIEW_SIZE / (height - 1);
|
|
}
|
|
width = width * this->m_divider;
|
|
height = height * this->m_divider;
|
|
|
|
resolution[0] = width;
|
|
resolution[1] = height;
|
|
}
|
|
|
|
CompositorPriority PreviewOperation::getRenderPriority() const
|
|
{
|
|
return COM_PRIORITY_LOW;
|
|
}
|