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);
+  }
+}