diff options
Diffstat (limited to 'source/blender/compositor/operations/COM_CropOperation.cc')
-rw-r--r-- | source/blender/compositor/operations/COM_CropOperation.cc | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_CropOperation.cc b/source/blender/compositor/operations/COM_CropOperation.cc new file mode 100644 index 00000000000..9364557169c --- /dev/null +++ b/source/blender/compositor/operations/COM_CropOperation.cc @@ -0,0 +1,135 @@ +/* + * 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_CropOperation.h" +#include "BLI_math.h" + +CropBaseOperation::CropBaseOperation() +{ + this->addInputSocket(COM_DT_COLOR, COM_SC_NO_RESIZE); + this->addOutputSocket(COM_DT_COLOR); + this->m_inputOperation = nullptr; + this->m_settings = nullptr; +} + +void CropBaseOperation::updateArea() +{ + SocketReader *inputReference = this->getInputSocketReader(0); + float width = inputReference->getWidth(); + float height = inputReference->getHeight(); + NodeTwoXYs local_settings = *this->m_settings; + + if (width > 0.0f && height > 0.0f) { + if (this->m_relative) { + local_settings.x1 = width * local_settings.fac_x1; + local_settings.x2 = width * local_settings.fac_x2; + local_settings.y1 = height * local_settings.fac_y1; + local_settings.y2 = height * local_settings.fac_y2; + } + if (width <= local_settings.x1 + 1) { + local_settings.x1 = width - 1; + } + if (height <= local_settings.y1 + 1) { + local_settings.y1 = height - 1; + } + if (width <= local_settings.x2 + 1) { + local_settings.x2 = width - 1; + } + if (height <= local_settings.y2 + 1) { + local_settings.y2 = height - 1; + } + + this->m_xmax = MAX2(local_settings.x1, local_settings.x2) + 1; + this->m_xmin = MIN2(local_settings.x1, local_settings.x2); + this->m_ymax = MAX2(local_settings.y1, local_settings.y2) + 1; + this->m_ymin = MIN2(local_settings.y1, local_settings.y2); + } + else { + this->m_xmax = 0; + this->m_xmin = 0; + this->m_ymax = 0; + this->m_ymin = 0; + } +} + +void CropBaseOperation::initExecution() +{ + this->m_inputOperation = this->getInputSocketReader(0); + updateArea(); +} + +void CropBaseOperation::deinitExecution() +{ + this->m_inputOperation = nullptr; +} + +CropOperation::CropOperation() : CropBaseOperation() +{ + /* pass */ +} + +void CropOperation::executePixelSampled(float output[4], float x, float y, PixelSampler sampler) +{ + if ((x < this->m_xmax && x >= this->m_xmin) && (y < this->m_ymax && y >= this->m_ymin)) { + this->m_inputOperation->readSampled(output, x, y, sampler); + } + else { + zero_v4(output); + } +} + +CropImageOperation::CropImageOperation() : CropBaseOperation() +{ + /* pass */ +} + +bool CropImageOperation::determineDependingAreaOfInterest(rcti *input, + ReadBufferOperation *readOperation, + rcti *output) +{ + rcti newInput; + + newInput.xmax = input->xmax + this->m_xmin; + newInput.xmin = input->xmin + this->m_xmin; + newInput.ymax = input->ymax + this->m_ymin; + newInput.ymin = input->ymin + this->m_ymin; + + return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output); +} + +void CropImageOperation::determineResolution(unsigned int resolution[2], + unsigned int preferredResolution[2]) +{ + NodeOperation::determineResolution(resolution, preferredResolution); + updateArea(); + resolution[0] = this->m_xmax - this->m_xmin; + resolution[1] = this->m_ymax - this->m_ymin; +} + +void CropImageOperation::executePixelSampled(float output[4], + float x, + float y, + PixelSampler sampler) +{ + if (x >= 0 && x < getWidth() && y >= 0 && y < getHeight()) { + this->m_inputOperation->readSampled(output, (x + this->m_xmin), (y + this->m_ymin), sampler); + } + else { + zero_v4(output); + } +} |