35d490b3f1
Quite handy for debugging. Unfortunately, this doesn't support viewport tweaks yet since those require GLSL for colorspace conversion. Maybe this will be implemented as well one day in the future..
678 lines
18 KiB
C++
678 lines
18 KiB
C++
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2012 Blender Foundation.
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* All rights reserved.
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*
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* Contributor(s): Brecht van Lommel
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#include <algorithm>
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#include <cstring>
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#include "MEM_guardedalloc.h"
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#include "BLI_math_color.h"
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#include "BLI_math_vector.h"
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#include "ocio_impl.h"
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using std::max;
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#define CONFIG_DEFAULT ((OCIO_ConstConfigRcPtr*)1)
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enum TransformType {
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TRANSFORM_LINEAR_TO_SRGB,
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TRANSFORM_SRGB_TO_LINEAR,
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TRANSFORM_MATRIX,
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TRANSFORM_EXPONENT,
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TRANSFORM_UNKNOWN,
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};
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#define COLORSPACE_LINEAR ((OCIO_ConstColorSpaceRcPtr*)1)
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#define COLORSPACE_SRGB ((OCIO_ConstColorSpaceRcPtr*)2)
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typedef struct OCIO_PackedImageDescription {
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float *data;
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long width;
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long height;
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long numChannels;
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long chanStrideBytes;
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long xStrideBytes;
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long yStrideBytes;
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} OCIO_PackedImageDescription;
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struct FallbackTransform {
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FallbackTransform()
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: type(TRANSFORM_UNKNOWN),
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linear_transform(NULL),
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display_transform(NULL)
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{
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}
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~FallbackTransform()
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{
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delete linear_transform;
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delete display_transform;
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}
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void applyRGB(float *pixel)
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{
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if (type == TRANSFORM_LINEAR_TO_SRGB) {
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applyLinearRGB(pixel);
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linearrgb_to_srgb_v3_v3(pixel, pixel);
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applyDisplayRGB(pixel);
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}
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else if (type == TRANSFORM_SRGB_TO_LINEAR) {
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srgb_to_linearrgb_v3_v3(pixel, pixel);
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}
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else if (type == TRANSFORM_EXPONENT) {
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pixel[0] = powf(max(0.0f, pixel[0]), exponent[0]);
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pixel[1] = powf(max(0.0f, pixel[1]), exponent[1]);
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pixel[2] = powf(max(0.0f, pixel[2]), exponent[2]);
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}
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else if (type == TRANSFORM_MATRIX) {
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float r = pixel[0];
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float g = pixel[1];
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float b = pixel[2];
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pixel[0] = r*matrix[0] + g*matrix[1] + b*matrix[2];
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pixel[1] = r*matrix[4] + g*matrix[5] + b*matrix[6];
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pixel[2] = r*matrix[8] + g*matrix[9] + b*matrix[10];
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pixel[0] += offset[0];
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pixel[1] += offset[1];
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pixel[2] += offset[2];
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}
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}
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void applyRGBA(float *pixel)
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{
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if (type == TRANSFORM_LINEAR_TO_SRGB) {
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applyLinearRGBA(pixel);
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linearrgb_to_srgb_v4(pixel, pixel);
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applyDisplayRGBA(pixel);
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}
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else if (type == TRANSFORM_SRGB_TO_LINEAR) {
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srgb_to_linearrgb_v4(pixel, pixel);
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}
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else if (type == TRANSFORM_EXPONENT) {
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pixel[0] = powf(max(0.0f, pixel[0]), exponent[0]);
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pixel[1] = powf(max(0.0f, pixel[1]), exponent[1]);
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pixel[2] = powf(max(0.0f, pixel[2]), exponent[2]);
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pixel[3] = powf(max(0.0f, pixel[3]), exponent[3]);
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}
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else if (type == TRANSFORM_MATRIX) {
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float r = pixel[0];
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float g = pixel[1];
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float b = pixel[2];
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float a = pixel[3];
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pixel[0] = r*matrix[0] + g*matrix[1] + b*matrix[2] + a*matrix[3];
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pixel[1] = r*matrix[4] + g*matrix[5] + b*matrix[6] + a*matrix[7];
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pixel[2] = r*matrix[8] + g*matrix[9] + b*matrix[10] + a*matrix[11];
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pixel[3] = r*matrix[12] + g*matrix[13] + b*matrix[14] + a*matrix[15];
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pixel[0] += offset[0];
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pixel[1] += offset[1];
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pixel[2] += offset[2];
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pixel[3] += offset[3];
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}
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}
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void applyLinearRGB(float *pixel)
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{
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if (linear_transform != NULL) {
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linear_transform->applyRGB(pixel);
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}
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}
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void applyLinearRGBA(float *pixel)
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{
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if (linear_transform != NULL) {
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linear_transform->applyRGBA(pixel);
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}
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}
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void applyDisplayRGB(float *pixel)
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{
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if (display_transform != NULL) {
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display_transform->applyRGB(pixel);
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}
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}
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void applyDisplayRGBA(float *pixel)
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{
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if (display_transform != NULL) {
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display_transform->applyRGBA(pixel);
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}
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}
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TransformType type;
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FallbackTransform *linear_transform;
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FallbackTransform *display_transform;
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/* Exponent transform. */
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float exponent[4];
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/* Matrix transform. */
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float matrix[16];
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float offset[4];
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MEM_CXX_CLASS_ALLOC_FUNCS("FallbackProcessor");
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};
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struct FallbackProcessor {
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FallbackProcessor()
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: transform(NULL)
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{
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}
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~FallbackProcessor() {
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delete transform;
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}
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void applyRGB(float *pixel)
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{
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transform->applyRGB(pixel);
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}
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void applyRGBA(float *pixel)
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{
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transform->applyRGBA(pixel);
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}
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FallbackTransform *transform;
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MEM_CXX_CLASS_ALLOC_FUNCS("FallbackProcessor");
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};
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OCIO_ConstConfigRcPtr *FallbackImpl::getCurrentConfig(void)
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{
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return CONFIG_DEFAULT;
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}
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void FallbackImpl::setCurrentConfig(const OCIO_ConstConfigRcPtr * /*config*/)
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{
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}
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OCIO_ConstConfigRcPtr *FallbackImpl::configCreateFromEnv(void)
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{
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return NULL;
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}
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OCIO_ConstConfigRcPtr *FallbackImpl::configCreateFromFile(const char * /*filename*/)
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{
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return CONFIG_DEFAULT;
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}
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void FallbackImpl::configRelease(OCIO_ConstConfigRcPtr * /*config*/)
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{
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}
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int FallbackImpl::configGetNumColorSpaces(OCIO_ConstConfigRcPtr * /*config*/)
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{
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return 2;
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}
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const char *FallbackImpl::configGetColorSpaceNameByIndex(OCIO_ConstConfigRcPtr * /*config*/,
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int index)
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{
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if (index == 0)
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return "Linear";
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else if (index == 1)
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return "sRGB";
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return NULL;
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}
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OCIO_ConstColorSpaceRcPtr *FallbackImpl::configGetColorSpace(OCIO_ConstConfigRcPtr * /*config*/,
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const char *name)
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{
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if (strcmp(name, "scene_linear") == 0)
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return COLORSPACE_LINEAR;
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else if (strcmp(name, "color_picking") == 0)
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return COLORSPACE_SRGB;
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else if (strcmp(name, "texture_paint") == 0)
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return COLORSPACE_LINEAR;
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else if (strcmp(name, "default_byte") == 0)
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return COLORSPACE_SRGB;
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else if (strcmp(name, "default_float") == 0)
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return COLORSPACE_LINEAR;
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else if (strcmp(name, "default_sequencer") == 0)
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return COLORSPACE_SRGB;
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else if (strcmp(name, "Linear") == 0)
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return COLORSPACE_LINEAR;
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else if (strcmp(name, "sRGB") == 0)
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return COLORSPACE_SRGB;
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return NULL;
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}
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int FallbackImpl::configGetIndexForColorSpace(OCIO_ConstConfigRcPtr *config,
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const char *name)
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{
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OCIO_ConstColorSpaceRcPtr *cs = configGetColorSpace(config, name);
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if (cs == COLORSPACE_LINEAR) {
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return 0;
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}
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else if (cs == COLORSPACE_SRGB) {
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return 1;
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}
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return -1;
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}
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const char *FallbackImpl::configGetDefaultDisplay(OCIO_ConstConfigRcPtr * /*config*/)
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{
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return "sRGB";
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}
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int FallbackImpl::configGetNumDisplays(OCIO_ConstConfigRcPtr * /*config*/)
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{
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return 1;
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}
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const char *FallbackImpl::configGetDisplay(OCIO_ConstConfigRcPtr * /*config*/,
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int index)
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{
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if (index == 0) {
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return "sRGB";
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}
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return NULL;
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}
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const char *FallbackImpl::configGetDefaultView(OCIO_ConstConfigRcPtr * /*config*/,
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const char * /*display*/)
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{
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return "Default";
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}
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int FallbackImpl::configGetNumViews(OCIO_ConstConfigRcPtr * /*config*/,
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const char * /*display*/)
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{
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return 1;
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}
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const char *FallbackImpl::configGetView(OCIO_ConstConfigRcPtr * /*config*/,
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const char * /*display*/, int index)
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{
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if (index == 0) {
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return "Default";
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}
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return NULL;
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}
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const char *FallbackImpl::configGetDisplayColorSpaceName(OCIO_ConstConfigRcPtr * /*config*/,
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const char * /*display*/,
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const char * /*view*/)
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{
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return "sRGB";
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}
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void FallbackImpl::configGetDefaultLumaCoefs(OCIO_ConstConfigRcPtr * /*config*/,
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float *rgb)
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{
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/* Here we simply use the older Blender assumed primaries of
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* ITU-BT.709 / sRGB, or 0.2126729 0.7151522 0.0721750. Brute
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* force stupid, but only plausible option given no color management
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* system in place.
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*/
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rgb[0] = 0.2126f;
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rgb[1] = 0.7152f;
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rgb[2] = 0.0722f;
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}
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int FallbackImpl::configGetNumLooks(OCIO_ConstConfigRcPtr * /*config*/)
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{
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return 0;
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}
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const char *FallbackImpl::configGetLookNameByIndex(OCIO_ConstConfigRcPtr * /*config*/,
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int /*index*/)
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{
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return "";
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}
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OCIO_ConstLookRcPtr *FallbackImpl::configGetLook(OCIO_ConstConfigRcPtr * /*config*/,
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const char * /*name*/)
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{
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return NULL;
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}
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const char *FallbackImpl::lookGetProcessSpace(OCIO_ConstLookRcPtr * /*look*/)
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{
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return NULL;
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}
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void FallbackImpl::lookRelease(OCIO_ConstLookRcPtr * /*look*/)
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{
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}
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int FallbackImpl::colorSpaceIsInvertible(OCIO_ConstColorSpaceRcPtr * /*cs*/)
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{
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return 1;
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}
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int FallbackImpl::colorSpaceIsData(OCIO_ConstColorSpaceRcPtr * /*cs*/)
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{
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return 0;
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}
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void FallbackImpl::colorSpaceRelease(OCIO_ConstColorSpaceRcPtr * /*cs*/)
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{
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}
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OCIO_ConstProcessorRcPtr *FallbackImpl::configGetProcessorWithNames(
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OCIO_ConstConfigRcPtr *config,
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const char *srcName,
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const char *dstName)
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{
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OCIO_ConstColorSpaceRcPtr *cs_src = configGetColorSpace(config, srcName);
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OCIO_ConstColorSpaceRcPtr *cs_dst = configGetColorSpace(config, dstName);
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FallbackTransform *transform = new FallbackTransform();
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if (cs_src == COLORSPACE_LINEAR && cs_dst == COLORSPACE_SRGB) {
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transform->type = TRANSFORM_LINEAR_TO_SRGB;
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}
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else if (cs_src == COLORSPACE_SRGB && cs_dst == COLORSPACE_LINEAR) {
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transform->type = TRANSFORM_SRGB_TO_LINEAR;
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}
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else {
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transform->type = TRANSFORM_UNKNOWN;
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}
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FallbackProcessor *processor = new FallbackProcessor();
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processor->transform = transform;
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return (OCIO_ConstProcessorRcPtr *)processor;
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}
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OCIO_ConstProcessorRcPtr *FallbackImpl::configGetProcessor(OCIO_ConstConfigRcPtr * /*config*/,
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OCIO_ConstTransformRcPtr *transform)
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{
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FallbackProcessor *processor = new FallbackProcessor();
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processor->transform = (FallbackTransform *)transform;
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return (OCIO_ConstProcessorRcPtr *)processor;
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}
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void FallbackImpl::processorApply(OCIO_ConstProcessorRcPtr *processor,
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OCIO_PackedImageDesc *img)
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{
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/* OCIO_TODO stride not respected, channels must be 3 or 4 */
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OCIO_PackedImageDescription *desc = (OCIO_PackedImageDescription*)img;
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int channels = desc->numChannels;
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float *pixels = desc->data;
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int width = desc->width;
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int height = desc->height;
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int x, y;
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for (y = 0; y < height; y++) {
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for (x = 0; x < width; x++) {
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float *pixel = pixels + channels * (y * width + x);
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if (channels == 4)
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processorApplyRGBA(processor, pixel);
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else if (channels == 3)
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processorApplyRGB(processor, pixel);
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}
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}
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}
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void FallbackImpl::processorApply_predivide(OCIO_ConstProcessorRcPtr *processor,
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OCIO_PackedImageDesc *img)
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{
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/* OCIO_TODO stride not respected, channels must be 3 or 4 */
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OCIO_PackedImageDescription *desc = (OCIO_PackedImageDescription*)img;
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int channels = desc->numChannels;
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float *pixels = desc->data;
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int width = desc->width;
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int height = desc->height;
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int x, y;
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for (y = 0; y < height; y++) {
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for (x = 0; x < width; x++) {
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float *pixel = pixels + channels * (y * width + x);
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if (channels == 4)
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processorApplyRGBA_predivide(processor, pixel);
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else if (channels == 3)
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processorApplyRGB(processor, pixel);
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}
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}
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}
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void FallbackImpl::processorApplyRGB(OCIO_ConstProcessorRcPtr *processor,
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float *pixel)
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{
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((FallbackProcessor *)processor)->applyRGB(pixel);
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}
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void FallbackImpl::processorApplyRGBA(OCIO_ConstProcessorRcPtr *processor,
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float *pixel)
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{
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((FallbackProcessor *)processor)->applyRGBA(pixel);
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}
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void FallbackImpl::processorApplyRGBA_predivide(OCIO_ConstProcessorRcPtr *processor,
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float *pixel)
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{
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if (pixel[3] == 1.0f || pixel[3] == 0.0f) {
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processorApplyRGBA(processor, pixel);
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}
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else {
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float alpha, inv_alpha;
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alpha = pixel[3];
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inv_alpha = 1.0f / alpha;
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pixel[0] *= inv_alpha;
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pixel[1] *= inv_alpha;
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pixel[2] *= inv_alpha;
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processorApplyRGBA(processor, pixel);
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pixel[0] *= alpha;
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pixel[1] *= alpha;
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pixel[2] *= alpha;
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}
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}
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void FallbackImpl::processorRelease(OCIO_ConstProcessorRcPtr *processor)
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{
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delete (FallbackProcessor*)(processor);
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}
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const char *FallbackImpl::colorSpaceGetName(OCIO_ConstColorSpaceRcPtr *cs)
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{
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if (cs == COLORSPACE_LINEAR) {
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return "Linear";
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}
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else if (cs == COLORSPACE_SRGB) {
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return "sRGB";
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}
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return NULL;
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}
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const char *FallbackImpl::colorSpaceGetDescription(OCIO_ConstColorSpaceRcPtr * /*cs*/)
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{
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return "";
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}
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const char *FallbackImpl::colorSpaceGetFamily(OCIO_ConstColorSpaceRcPtr * /*cs*/)
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{
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return "";
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}
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OCIO_DisplayTransformRcPtr *FallbackImpl::createDisplayTransform(void)
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{
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FallbackTransform *transform = new FallbackTransform();
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transform->type = TRANSFORM_LINEAR_TO_SRGB;
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return (OCIO_DisplayTransformRcPtr*)transform;
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}
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void FallbackImpl::displayTransformSetInputColorSpaceName(OCIO_DisplayTransformRcPtr * /*dt*/,
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const char * /*name*/)
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{
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}
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void FallbackImpl::displayTransformSetDisplay(OCIO_DisplayTransformRcPtr * /*dt*/,
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const char * /*name*/)
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{
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}
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void FallbackImpl::displayTransformSetView(OCIO_DisplayTransformRcPtr * /*dt*/,
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const char * /*name*/)
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{
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}
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void FallbackImpl::displayTransformSetDisplayCC(OCIO_DisplayTransformRcPtr *dt,
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OCIO_ConstTransformRcPtr *et)
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{
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FallbackTransform *transform = (FallbackTransform *)dt;
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transform->display_transform = (FallbackTransform *)et;
|
|
}
|
|
|
|
void FallbackImpl::displayTransformSetLinearCC(OCIO_DisplayTransformRcPtr *dt,
|
|
OCIO_ConstTransformRcPtr *et)
|
|
{
|
|
FallbackTransform *transform = (FallbackTransform *)dt;
|
|
transform->linear_transform = (FallbackTransform *)et;
|
|
}
|
|
|
|
void FallbackImpl::displayTransformSetLooksOverride(OCIO_DisplayTransformRcPtr * /*dt*/,
|
|
const char * /*looks*/)
|
|
{
|
|
}
|
|
|
|
void FallbackImpl::displayTransformSetLooksOverrideEnabled(OCIO_DisplayTransformRcPtr * /*dt*/,
|
|
bool /*enabled*/)
|
|
{
|
|
}
|
|
|
|
void FallbackImpl::displayTransformRelease(OCIO_DisplayTransformRcPtr * /*dt*/)
|
|
{
|
|
}
|
|
|
|
OCIO_PackedImageDesc *FallbackImpl::createOCIO_PackedImageDesc(
|
|
float *data,
|
|
long width, long height, long numChannels,
|
|
long chanStrideBytes, long xStrideBytes, long yStrideBytes)
|
|
{
|
|
OCIO_PackedImageDescription *desc =
|
|
(OCIO_PackedImageDescription*)MEM_callocN(sizeof(OCIO_PackedImageDescription),
|
|
"OCIO_PackedImageDescription");
|
|
desc->data = data;
|
|
desc->width = width;
|
|
desc->height = height;
|
|
desc->numChannels = numChannels;
|
|
desc->chanStrideBytes = chanStrideBytes;
|
|
desc->xStrideBytes = xStrideBytes;
|
|
desc->yStrideBytes = yStrideBytes;
|
|
return (OCIO_PackedImageDesc*)desc;
|
|
}
|
|
|
|
void FallbackImpl::OCIO_PackedImageDescRelease(OCIO_PackedImageDesc* id)
|
|
{
|
|
MEM_freeN(id);
|
|
}
|
|
|
|
OCIO_ExponentTransformRcPtr *FallbackImpl::createExponentTransform(void)
|
|
{
|
|
FallbackTransform *transform = new FallbackTransform();
|
|
transform->type = TRANSFORM_EXPONENT;
|
|
return (OCIO_ExponentTransformRcPtr *)transform;
|
|
}
|
|
|
|
void FallbackImpl::exponentTransformSetValue(OCIO_ExponentTransformRcPtr *et,
|
|
const float *exponent)
|
|
{
|
|
FallbackTransform *transform = (FallbackTransform *)et;
|
|
copy_v4_v4(transform->exponent, exponent);
|
|
}
|
|
|
|
void FallbackImpl::exponentTransformRelease(OCIO_ExponentTransformRcPtr * /*et*/)
|
|
{
|
|
}
|
|
|
|
OCIO_MatrixTransformRcPtr *FallbackImpl::createMatrixTransform(void)
|
|
{
|
|
FallbackTransform *transform = new FallbackTransform();
|
|
transform->type = TRANSFORM_MATRIX;
|
|
return (OCIO_MatrixTransformRcPtr *)transform;
|
|
}
|
|
|
|
void FallbackImpl::matrixTransformSetValue(OCIO_MatrixTransformRcPtr *mt,
|
|
const float *m44,
|
|
const float *offset4)
|
|
{
|
|
FallbackTransform *transform = (FallbackTransform *)mt;
|
|
copy_m4_m4((float (*)[4])transform->matrix, (float (*)[4])m44);
|
|
copy_v4_v4(transform->offset, offset4);
|
|
}
|
|
|
|
void FallbackImpl::matrixTransformRelease(OCIO_MatrixTransformRcPtr * /*mt*/)
|
|
{
|
|
}
|
|
|
|
void FallbackImpl::matrixTransformScale(float *m44,
|
|
float *offset4,
|
|
const float *scale4)
|
|
{
|
|
if (scale4 == NULL) {
|
|
return;
|
|
}
|
|
if (m44 != NULL) {
|
|
memset(m44, 0, 16*sizeof(float));
|
|
m44[0] = scale4[0];
|
|
m44[5] = scale4[1];
|
|
m44[10] = scale4[2];
|
|
m44[15] = scale4[3];
|
|
}
|
|
if (offset4 != NULL) {
|
|
offset4[0] = 0.0f;
|
|
offset4[1] = 0.0f;
|
|
offset4[2] = 0.0f;
|
|
offset4[3] = 0.0f;
|
|
}
|
|
}
|
|
|
|
bool FallbackImpl::supportGLSLDraw(void)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool FallbackImpl::setupGLSLDraw(struct OCIO_GLSLDrawState ** /*state_r*/,
|
|
OCIO_ConstProcessorRcPtr * /*processor*/,
|
|
OCIO_CurveMappingSettings * /*curve_mapping_settings*/,
|
|
float /*dither*/,
|
|
bool /*predivide*/)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
void FallbackImpl::finishGLSLDraw(OCIO_GLSLDrawState * /*state*/)
|
|
{
|
|
}
|
|
|
|
void FallbackImpl::freeGLState(struct OCIO_GLSLDrawState * /*state_r*/)
|
|
{
|
|
}
|
|
|
|
const char *FallbackImpl::getVersionString(void)
|
|
{
|
|
return "fallback";
|
|
}
|
|
|
|
int FallbackImpl::getVersionHex(void)
|
|
{
|
|
return 0;
|
|
}
|