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/*
* 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_RenderLayersProg.h"
#include "BLI_listbase.h"
#include "BKE_scene.h"
#include "DNA_scene_types.h"
extern "C" {
# include "RE_pipeline.h"
# include "RE_shader_ext.h"
# include "RE_render_ext.h"
}
/* ******** Render Layers Base Prog ******** */
RenderLayersProg::RenderLayersProg(const char *passName, DataType type, int elementsize) : NodeOperation(), m_passName(passName)
{
this->setScene(NULL);
this->m_inputBuffer = NULL;
this->m_elementsize = elementsize;
this->m_rd = NULL;
this->addOutputSocket(type);
}
void RenderLayersProg::initExecution()
{
Scene *scene = this->getScene();
Render *re = (scene) ? RE_GetRender(scene->id.name) : NULL;
RenderResult *rr = NULL;
if (re)
rr = RE_AcquireResultRead(re);
if (rr) {
SceneRenderLayer *srl = (SceneRenderLayer *)BLI_findlink(&scene->r.layers, getLayerId());
if (srl) {
RenderLayer *rl = RE_GetRenderLayer(rr, srl->name);
if (rl) {
this->m_inputBuffer = RE_RenderLayerGetPass(rl, this->m_passName.c_str(), this->m_viewName);
}
}
}
if (re) {
RE_ReleaseResult(re);
re = NULL;
}
}
void RenderLayersProg::doInterpolation(float output[4], float x, float y, PixelSampler sampler)
{
unsigned int offset;
int width = this->getWidth(), height = this->getHeight();
int ix = x, iy = y;
if (ix < 0 || iy < 0 || ix >= width || iy >= height) {
if (this->m_elementsize == 1)
output[0] = 0.0f;
else if (this->m_elementsize == 3)
zero_v3(output);
else
zero_v4(output);
return;
}
switch (sampler) {
case COM_PS_NEAREST: {
offset = (iy * width + ix) * this->m_elementsize;
if (this->m_elementsize == 1)
output[0] = this->m_inputBuffer[offset];
else if (this->m_elementsize == 3)
copy_v3_v3(output, &this->m_inputBuffer[offset]);
else
copy_v4_v4(output, &this->m_inputBuffer[offset]);
break;
}
case COM_PS_BILINEAR:
BLI_bilinear_interpolation_fl(this->m_inputBuffer, output, width, height, this->m_elementsize, x, y);
break;
case COM_PS_BICUBIC:
BLI_bicubic_interpolation_fl(this->m_inputBuffer, output, width, height, this->m_elementsize, x, y);
break;
}
}
void RenderLayersProg::executePixelSampled(float output[4], float x, float y, PixelSampler sampler)
{
#if 0
const RenderData *rd = this->m_rd;
int dx = 0, dy = 0;
if (rd->mode & R_BORDER && rd->mode & R_CROP) {
/* see comment in executeRegion describing coordinate mapping,
* here it simply goes other way around
*/
int full_width = rd->xsch * rd->size / 100;
int full_height = rd->ysch * rd->size / 100;
dx = rd->border.xmin * full_width - (full_width - this->getWidth()) / 2.0f;
dy = rd->border.ymin * full_height - (full_height - this->getHeight()) / 2.0f;
}
int ix = x - dx;
int iy = y - dy;
#endif
#ifndef NDEBUG
{
const DataType data_type = this->getOutputSocket()->getDataType();
int actual_element_size = this->m_elementsize;
int expected_element_size;
if (data_type == COM_DT_VALUE) {
expected_element_size = 1;
}
else if (data_type == COM_DT_VECTOR) {
expected_element_size = 3;
}
else if (data_type == COM_DT_COLOR) {
expected_element_size = 4;
}
else {
expected_element_size = 0;
BLI_assert(!"Something horribly wrong just happened");
}
BLI_assert(expected_element_size == actual_element_size);
}
#endif
if (this->m_inputBuffer == NULL) {
int elemsize = this->m_elementsize;
if (elemsize == 1) {
output[0] = 0.0f;
}
else if (elemsize == 3) {
zero_v3(output);
}
else {
BLI_assert(elemsize == 4);
zero_v4(output);
}
}
else {
doInterpolation(output, x, y, sampler);
}
}
void RenderLayersProg::deinitExecution()
{
this->m_inputBuffer = NULL;
}
void RenderLayersProg::determineResolution(unsigned int resolution[2], unsigned int /*preferredResolution*/[2])
{
Scene *sce = this->getScene();
Render *re = (sce) ? RE_GetRender(sce->id.name) : NULL;
RenderResult *rr = NULL;
resolution[0] = 0;
resolution[1] = 0;
if (re)
rr = RE_AcquireResultRead(re);
if (rr) {
SceneRenderLayer *srl = (SceneRenderLayer *)BLI_findlink(&sce->r.layers, getLayerId());
if (srl) {
RenderLayer *rl = RE_GetRenderLayer(rr, srl->name);
if (rl) {
resolution[0] = rl->rectx;
resolution[1] = rl->recty;
}
}
}
if (re)
RE_ReleaseResult(re);
}
/* ******** Render Layers AO Operation ******** */
void RenderLayersAOOperation::executePixelSampled(float output[4], float x, float y, PixelSampler sampler)
{
float *inputBuffer = this->getInputBuffer();
if (inputBuffer == NULL) {
zero_v3(output);
}
else {
doInterpolation(output, x, y, sampler);
}
output[3] = 1.0f;
}
/* ******** Render Layers Alpha Operation ******** */
void RenderLayersAlphaProg::executePixelSampled(float output[4], float x, float y, PixelSampler sampler)
{
float *inputBuffer = this->getInputBuffer();
if (inputBuffer == NULL) {
output[0] = 0.0f;
}
else {
float temp[4];
doInterpolation(temp, x, y, sampler);
output[0] = temp[3];
}
}
/* ******** Render Layers Depth Operation ******** */
void RenderLayersDepthProg::executePixelSampled(float output[4], float x, float y, PixelSampler /*sampler*/)
{
int ix = x;
int iy = y;
float *inputBuffer = this->getInputBuffer();
if (inputBuffer == NULL || ix < 0 || iy < 0 || ix >= (int)this->getWidth() || iy >= (int)this->getHeight() ) {
output[0] = 10e10f;
}
else {
unsigned int offset = (iy * this->getWidth() + ix);
output[0] = inputBuffer[offset];
}
}
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