diff options
Diffstat (limited to 'source/blender/compositor/operations/COM_EllipseMaskOperation.cc')
-rw-r--r-- | source/blender/compositor/operations/COM_EllipseMaskOperation.cc | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_EllipseMaskOperation.cc b/source/blender/compositor/operations/COM_EllipseMaskOperation.cc new file mode 100644 index 00000000000..a6985a40625 --- /dev/null +++ b/source/blender/compositor/operations/COM_EllipseMaskOperation.cc @@ -0,0 +1,119 @@ +/* + * 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_EllipseMaskOperation.h" +#include "BLI_math.h" +#include "DNA_node_types.h" + +EllipseMaskOperation::EllipseMaskOperation() +{ + this->addInputSocket(COM_DT_VALUE); + this->addInputSocket(COM_DT_VALUE); + this->addOutputSocket(COM_DT_VALUE); + this->m_inputMask = nullptr; + this->m_inputValue = nullptr; + this->m_cosine = 0.0f; + this->m_sine = 0.0f; +} +void EllipseMaskOperation::initExecution() +{ + this->m_inputMask = this->getInputSocketReader(0); + this->m_inputValue = this->getInputSocketReader(1); + const double rad = (double)this->m_data->rotation; + this->m_cosine = cos(rad); + this->m_sine = sin(rad); + this->m_aspectRatio = ((float)this->getWidth()) / this->getHeight(); +} + +void EllipseMaskOperation::executePixelSampled(float output[4], + float x, + float y, + PixelSampler sampler) +{ + float inputMask[4]; + float inputValue[4]; + + float rx = x / this->getWidth(); + float ry = y / this->getHeight(); + + const float dy = (ry - this->m_data->y) / this->m_aspectRatio; + const float dx = rx - this->m_data->x; + rx = this->m_data->x + (this->m_cosine * dx + this->m_sine * dy); + ry = this->m_data->y + (-this->m_sine * dx + this->m_cosine * dy); + + this->m_inputMask->readSampled(inputMask, x, y, sampler); + this->m_inputValue->readSampled(inputValue, x, y, sampler); + + const float halfHeight = (this->m_data->height) / 2.0f; + const float halfWidth = this->m_data->width / 2.0f; + float sx = rx - this->m_data->x; + sx *= sx; + const float tx = halfWidth * halfWidth; + float sy = ry - this->m_data->y; + sy *= sy; + const float ty = halfHeight * halfHeight; + + bool inside = ((sx / tx) + (sy / ty)) < 1.0f; + + switch (this->m_maskType) { + case CMP_NODE_MASKTYPE_ADD: + if (inside) { + output[0] = MAX2(inputMask[0], inputValue[0]); + } + else { + output[0] = inputMask[0]; + } + break; + case CMP_NODE_MASKTYPE_SUBTRACT: + if (inside) { + output[0] = inputMask[0] - inputValue[0]; + CLAMP(output[0], 0, 1); + } + else { + output[0] = inputMask[0]; + } + break; + case CMP_NODE_MASKTYPE_MULTIPLY: + if (inside) { + output[0] = inputMask[0] * inputValue[0]; + } + else { + output[0] = 0; + } + break; + case CMP_NODE_MASKTYPE_NOT: + if (inside) { + if (inputMask[0] > 0.0f) { + output[0] = 0; + } + else { + output[0] = inputValue[0]; + } + } + else { + output[0] = inputMask[0]; + } + break; + } +} + +void EllipseMaskOperation::deinitExecution() +{ + this->m_inputMask = nullptr; + this->m_inputValue = nullptr; +} |