From 1775ea74c152ba7cf27a8bc1f071b40992c89013 Mon Sep 17 00:00:00 2001
From: Jeroen Bakker <jeroen@blender.org>
Date: Mon, 8 Mar 2021 13:41:52 +0100
Subject: Cleanup: Change extension .cpp to .cc

---
 .../operations/COM_GammaCorrectOperation.cc        | 104 +++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 source/blender/compositor/operations/COM_GammaCorrectOperation.cc

(limited to 'source/blender/compositor/operations/COM_GammaCorrectOperation.cc')

diff --git a/source/blender/compositor/operations/COM_GammaCorrectOperation.cc b/source/blender/compositor/operations/COM_GammaCorrectOperation.cc
new file mode 100644
index 00000000000..d67d67f8e57
--- /dev/null
+++ b/source/blender/compositor/operations/COM_GammaCorrectOperation.cc
@@ -0,0 +1,104 @@
+/*
+ * 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_GammaCorrectOperation.h"
+#include "BLI_math.h"
+
+GammaCorrectOperation::GammaCorrectOperation()
+{
+  this->addInputSocket(COM_DT_COLOR);
+  this->addOutputSocket(COM_DT_COLOR);
+  this->m_inputProgram = nullptr;
+}
+void GammaCorrectOperation::initExecution()
+{
+  this->m_inputProgram = this->getInputSocketReader(0);
+}
+
+void GammaCorrectOperation::executePixelSampled(float output[4],
+                                                float x,
+                                                float y,
+                                                PixelSampler sampler)
+{
+  float inputColor[4];
+  this->m_inputProgram->readSampled(inputColor, x, y, sampler);
+  if (inputColor[3] > 0.0f) {
+    inputColor[0] /= inputColor[3];
+    inputColor[1] /= inputColor[3];
+    inputColor[2] /= inputColor[3];
+  }
+
+  /* check for negative to avoid nan's */
+  output[0] = inputColor[0] > 0.0f ? inputColor[0] * inputColor[0] : 0.0f;
+  output[1] = inputColor[1] > 0.0f ? inputColor[1] * inputColor[1] : 0.0f;
+  output[2] = inputColor[2] > 0.0f ? inputColor[2] * inputColor[2] : 0.0f;
+  output[3] = inputColor[3];
+
+  if (inputColor[3] > 0.0f) {
+    output[0] *= inputColor[3];
+    output[1] *= inputColor[3];
+    output[2] *= inputColor[3];
+  }
+}
+
+void GammaCorrectOperation::deinitExecution()
+{
+  this->m_inputProgram = nullptr;
+}
+
+GammaUncorrectOperation::GammaUncorrectOperation()
+{
+  this->addInputSocket(COM_DT_COLOR);
+  this->addOutputSocket(COM_DT_COLOR);
+  this->m_inputProgram = nullptr;
+}
+void GammaUncorrectOperation::initExecution()
+{
+  this->m_inputProgram = this->getInputSocketReader(0);
+}
+
+void GammaUncorrectOperation::executePixelSampled(float output[4],
+                                                  float x,
+                                                  float y,
+                                                  PixelSampler sampler)
+{
+  float inputColor[4];
+  this->m_inputProgram->readSampled(inputColor, x, y, sampler);
+
+  if (inputColor[3] > 0.0f) {
+    inputColor[0] /= inputColor[3];
+    inputColor[1] /= inputColor[3];
+    inputColor[2] /= inputColor[3];
+  }
+
+  output[0] = inputColor[0] > 0.0f ? sqrtf(inputColor[0]) : 0.0f;
+  output[1] = inputColor[1] > 0.0f ? sqrtf(inputColor[1]) : 0.0f;
+  output[2] = inputColor[2] > 0.0f ? sqrtf(inputColor[2]) : 0.0f;
+  output[3] = inputColor[3];
+
+  if (inputColor[3] > 0.0f) {
+    output[0] *= inputColor[3];
+    output[1] *= inputColor[3];
+    output[2] *= inputColor[3];
+  }
+}
+
+void GammaUncorrectOperation::deinitExecution()
+{
+  this->m_inputProgram = nullptr;
+}
-- 
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