1 files changed, 100 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_TextureOperation.cpp b/source/blender/compositor/operations/COM_TextureOperation.cpp
new file mode 100644
index 00000000000..1ca986f8893
--- /dev/null
+++ b/source/blender/compositor/operations/COM_TextureOperation.cpp
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2011, Blender Foundation.
+ *
+ * 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.
+ *
+ * Contributor: 
+ *		Jeroen Bakker 
+ *		Monique Dewanchand
+ */
+
+#include "COM_TextureOperation.h"
+
+#include "BLI_listbase.h"
+#include "DNA_scene_types.h"
+
+TextureBaseOperation::TextureBaseOperation(): NodeOperation() {
+	this->addInputSocket(COM_DT_VECTOR);//offset
+	this->addInputSocket(COM_DT_VECTOR);//size
+	this->texture = NULL;
+	this->inputSize = NULL;
+	this->inputOffset = NULL;
+}
+TextureOperation::TextureOperation() : TextureBaseOperation() {
+	this->addOutputSocket(COM_DT_COLOR);
+}
+TextureAlphaOperation::TextureAlphaOperation() : TextureBaseOperation() {
+	this->addOutputSocket(COM_DT_VALUE);
+}
+
+void TextureBaseOperation::initExecution() {
+	this->inputOffset = getInputSocketReader(0);
+	this->inputSize = getInputSocketReader(1);
+}
+void TextureBaseOperation::deinitExecution() {
+	this->inputSize = NULL;
+	this->inputOffset = NULL;
+}
+
+void TextureBaseOperation::determineResolution(unsigned int resolution[], unsigned int preferredResolution[]) {
+	if (preferredResolution[0] == 0 || preferredResolution[1] == 0) {
+		resolution[0] = COM_DEFAULT_RESOLUTION_WIDTH;
+		resolution[1] = COM_DEFAULT_RESOLUTION_HEIGHT;
+	} else {
+		resolution[0] = preferredResolution[0];
+		resolution[1] = preferredResolution[1];
+	}
+}
+
+void TextureAlphaOperation::executePixel(float *color, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[]) {
+	TextureBaseOperation::executePixel(color, x, y, sampler, inputBuffers);
+	color[0] = color[3];
+	color[1] = 0.0f;
+	color[2] = 0.0f;
+	color[3] = 0.0f;
+}
+
+void TextureBaseOperation::executePixel(float *color, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[]) {
+	TexResult texres= {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0, NULL};
+	float textureSize[4];
+	float textureOffset[4];
+	float vec[3];
+	int retval;
+	const float cx = this->getWidth()/2;
+	const float cy = this->getHeight()/2;
+	const float u = (cx-x)/this->getWidth()*2;
+	const float v = (cy-y)/this->getHeight()*2;
+
+	this->inputSize->read(textureSize, x, y, sampler, inputBuffers);
+	this->inputOffset->read(textureOffset, x, y, sampler, inputBuffers);
+
+	vec[0]= textureSize[0]*(u + textureOffset[0]);
+	vec[1]= textureSize[1]*(v + textureOffset[1]);
+	vec[2]= textureSize[2]*textureOffset[2];
+
+	retval= multitex_ext(this->texture, vec, NULL, NULL, 0, &texres);
+
+	if(texres.talpha)
+		color[3]= texres.ta;
+	else
+		color[3]= texres.tin;
+
+	if((retval & TEX_RGB)) {
+		color[0]= texres.tr;
+		color[1]= texres.tg;
+		color[2]= texres.tb;
+	}
+	else color[0]= color[1]= color[2]= color[3];
+}