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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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.
*
* The Original Code is Copyright (C) 2012 Blender Foundation.
* All rights reserved.
*
* Contributor(s): Brecht van Lommel
*
* ***** END GPL LICENSE BLOCK *****
*/
#include <string.h>
#include "MEM_guardedalloc.h"
#include "BLI_math_color.h"
namespace OCIO_NAMESPACE {};
#include "ocio_capi.h"
#define CONFIG_DEFAULT ((ConstConfigRcPtr*)1)
#define PROCESSOR_LINEAR_TO_SRGB ((ConstProcessorRcPtr*)1)
#define PROCESSOR_SRGB_TO_LINEAR ((ConstProcessorRcPtr*)2)
#define PROCESSOR_UNKNOWN ((ConstProcessorRcPtr*)3)
#define COLORSPACE_LINEAR ((ConstColorSpaceRcPtr*)1)
#define COLORSPACE_SRGB ((ConstColorSpaceRcPtr*)2)
typedef struct PackedImageDescription {
float *data;
long width;
long height;
long numChannels;
long chanStrideBytes;
long xStrideBytes;
long yStrideBytes;
} PackedImageDescription;
ConstConfigRcPtr *OCIO_getCurrentConfig(void)
{
return CONFIG_DEFAULT;
}
ConstConfigRcPtr *OCIO_getDefaultConfig(void)
{
return CONFIG_DEFAULT;
}
void OCIO_setCurrentConfig(const ConstConfigRcPtr *)
{
}
ConstConfigRcPtr *OCIO_configCreateFromEnv(void)
{
return CONFIG_DEFAULT;
}
ConstConfigRcPtr *OCIO_configCreateFromFile(const char *)
{
return CONFIG_DEFAULT;
}
void OCIO_configRelease(ConstConfigRcPtr *)
{
}
int OCIO_configGetNumColorSpaces(ConstConfigRcPtr *)
{
return 2;
}
const char *OCIO_configGetColorSpaceNameByIndex(ConstConfigRcPtr *, int index)
{
if (index == 0)
return "Linear";
else if (index == 1)
return "sRGB";
return NULL;
}
ConstColorSpaceRcPtr *OCIO_configGetColorSpace(ConstConfigRcPtr *, const char *name)
{
if (strcmp(name, "scene_linear") == 0)
return COLORSPACE_LINEAR;
else if (strcmp(name, "color_picking") == 0)
return COLORSPACE_SRGB;
else if (strcmp(name, "texture_paint") == 0)
return COLORSPACE_LINEAR;
else if (strcmp(name, "default_byte") == 0)
return COLORSPACE_SRGB;
else if (strcmp(name, "default_float") == 0)
return COLORSPACE_LINEAR;
else if (strcmp(name, "default_sequencer") == 0)
return COLORSPACE_SRGB;
else if (strcmp(name, "Linear") == 0)
return COLORSPACE_LINEAR;
else if (strcmp(name, "sRGB") == 0)
return COLORSPACE_SRGB;
return NULL;
}
int OCIO_configGetIndexForColorSpace(ConstConfigRcPtr *config, const char *name)
{
ConstColorSpaceRcPtr *cs = OCIO_configGetColorSpace(config, name);
if (cs == COLORSPACE_LINEAR)
return 0;
else if (cs == COLORSPACE_SRGB)
return 1;
return -1;
}
const char *OCIO_configGetDefaultDisplay(ConstConfigRcPtr *)
{
return "sRGB";
}
int OCIO_configGetNumDisplays(ConstConfigRcPtr* config)
{
return 1;
}
const char *OCIO_configGetDisplay(ConstConfigRcPtr *, int index)
{
if (index == 0)
return "sRGB";
return NULL;
}
const char *OCIO_configGetDefaultView(ConstConfigRcPtr *, const char *)
{
return "Default";
}
int OCIO_configGetNumViews(ConstConfigRcPtr *, const char *)
{
return 1;
}
const char *OCIO_configGetView(ConstConfigRcPtr *, const char *, int index)
{
if (index == 0)
return "Default";
return NULL;
}
const char *OCIO_configGetDisplayColorSpaceName(ConstConfigRcPtr *, const char *, const char *)
{
return "sRGB";
}
int OCIO_colorSpaceIsInvertible(ConstColorSpaceRcPtr *cs)
{
return 1;
}
void OCIO_colorSpaceRelease(ConstColorSpaceRcPtr *cs)
{
}
ConstProcessorRcPtr *OCIO_configGetProcessorWithNames(ConstConfigRcPtr *config, const char *srcName, const char *dstName)
{
ConstColorSpaceRcPtr *cs_src = OCIO_configGetColorSpace(config, srcName);
ConstColorSpaceRcPtr *cs_dst = OCIO_configGetColorSpace(config, dstName);
if (cs_src == COLORSPACE_LINEAR && cs_dst == COLORSPACE_SRGB)
return PROCESSOR_LINEAR_TO_SRGB;
else if (cs_src == COLORSPACE_SRGB && cs_dst == COLORSPACE_LINEAR)
return PROCESSOR_SRGB_TO_LINEAR;
return 0;
}
ConstProcessorRcPtr *OCIO_configGetProcessor(ConstConfigRcPtr *, ConstTransformRcPtr *tfm)
{
return (ConstProcessorRcPtr*)tfm;
}
void OCIO_processorApply(ConstProcessorRcPtr *processor, PackedImageDesc *img)
{
/* OCIO_TODO stride not respected, channels must be 3 or 4 */
PackedImageDescription *desc = (PackedImageDescription*)img;
int channels = desc->numChannels;
float *pixels = desc->data;
int width = desc->width;
int height = desc->height;
int x, y;
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++) {
float *pixel = pixels + channels * (y * width + x);
if (channels == 4)
OCIO_processorApplyRGBA(processor, pixel);
else if (channels == 3)
OCIO_processorApplyRGB(processor, pixel);
}
}
}
void OCIO_processorApply_predivide(ConstProcessorRcPtr *processor, PackedImageDesc *img)
{
/* OCIO_TODO stride not respected, channels must be 3 or 4 */
PackedImageDescription *desc = (PackedImageDescription*)img;
int channels = desc->numChannels;
float *pixels = desc->data;
int width = desc->width;
int height = desc->height;
int x, y;
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++) {
float *pixel = pixels + channels * (y * width + x);
if (channels == 4)
OCIO_processorApplyRGBA_predivide(processor, pixel);
else if (channels == 3)
OCIO_processorApplyRGB(processor, pixel);
}
}
}
void OCIO_processorApplyRGB(ConstProcessorRcPtr *processor, float *pixel)
{
if (processor == PROCESSOR_LINEAR_TO_SRGB)
linearrgb_to_srgb_v3_v3(pixel, pixel);
else if (processor == PROCESSOR_SRGB_TO_LINEAR)
srgb_to_linearrgb_v3_v3(pixel, pixel);
}
void OCIO_processorApplyRGBA(ConstProcessorRcPtr *processor, float *pixel)
{
if (processor == PROCESSOR_LINEAR_TO_SRGB)
linearrgb_to_srgb_v4(pixel, pixel);
else if (processor == PROCESSOR_SRGB_TO_LINEAR)
srgb_to_linearrgb_v4(pixel, pixel);
}
void OCIO_processorApplyRGBA_predivide(ConstProcessorRcPtr *processor, float *pixel)
{
if (pixel[3] == 1.0f || pixel[3] == 0.0f) {
OCIO_processorApplyRGBA(processor, pixel);
}
else {
float alpha, inv_alpha;
alpha = pixel[3];
inv_alpha = 1.0f / alpha;
pixel[0] *= inv_alpha;
pixel[1] *= inv_alpha;
pixel[2] *= inv_alpha;
OCIO_processorApplyRGBA(processor, pixel);
pixel[0] *= alpha;
pixel[1] *= alpha;
pixel[2] *= alpha;
}
}
void OCIO_processorRelease(ConstProcessorRcPtr *)
{
}
const char *OCIO_colorSpaceGetName(ConstColorSpaceRcPtr *cs)
{
if (cs == COLORSPACE_LINEAR)
return "Linear";
else if (cs == COLORSPACE_SRGB)
return "sRGB";
return NULL;
}
const char *OCIO_colorSpaceGetDescription(ConstColorSpaceRcPtr *)
{
return "";
}
const char *OCIO_colorSpaceGetFamily(ConstColorSpaceRcPtr *)
{
return "";
}
DisplayTransformRcPtr *OCIO_createDisplayTransform(void)
{
return (DisplayTransformRcPtr*)PROCESSOR_LINEAR_TO_SRGB;
}
void OCIO_displayTransformSetInputColorSpaceName(DisplayTransformRcPtr *, const char *)
{
}
void OCIO_displayTransformSetDisplay(DisplayTransformRcPtr *, const char *)
{
}
void OCIO_displayTransformSetView(DisplayTransformRcPtr *, const char *)
{
}
void OCIO_displayTransformSetDisplayCC(DisplayTransformRcPtr *, ConstTransformRcPtr *)
{
}
void OCIO_displayTransformSetLinearCC(DisplayTransformRcPtr *, ConstTransformRcPtr *)
{
}
void OCIO_displayTransformRelease(DisplayTransformRcPtr *)
{
}
PackedImageDesc *OCIO_createPackedImageDesc(float *data, long width, long height, long numChannels,
long chanStrideBytes, long xStrideBytes, long yStrideBytes)
{
PackedImageDescription *desc = (PackedImageDescription*)MEM_callocN(sizeof(PackedImageDescription), "PackedImageDescription");
desc->data = data;
desc->width = width;
desc->height = height;
desc->numChannels = numChannels;
desc->chanStrideBytes = chanStrideBytes;
desc->xStrideBytes = xStrideBytes;
desc->yStrideBytes = yStrideBytes;
return (PackedImageDesc*)desc;
}
void OCIO_packedImageDescRelease(PackedImageDesc* id)
{
MEM_freeN(id);
}
ExponentTransformRcPtr *OCIO_createExponentTransform(void)
{
return (ExponentTransformRcPtr*)PROCESSOR_UNKNOWN;
}
void OCIO_exponentTransformSetValue(ExponentTransformRcPtr *, const float *)
{
}
void OCIO_exponentTransformRelease(ExponentTransformRcPtr *)
{
}
MatrixTransformRcPtr *OCIO_createMatrixTransform(void)
{
return (MatrixTransformRcPtr*)PROCESSOR_UNKNOWN;
}
void OCIO_matrixTransformSetValue(MatrixTransformRcPtr *, const float *, const float *)
{
}
void OCIO_matrixTransformRelease(MatrixTransformRcPtr *)
{
}
void OCIO_matrixTransformScale(float * , float * , const float *)
{
}
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