forked from bartvdbraak/blender
5a91df3271
Summary: Uses some magic pseudo-random which is actually a texture coordinate hashing function. TODOs: - Dither noise is the same for all the frames. - It's different from Floyd's dither we've been using before. - Currently CPU and GPU dithering used different implementation. Ideally we need to use the same dither in CPU. Reviewers: brecht Reviewed By: brecht Differential Revision: http://developer.blender.org/D58
204 lines
8.4 KiB
C
204 lines
8.4 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): Xavier Thomas
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* Lukas Toene
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* Sergey Sharybin
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#ifndef __OCIO_CAPI_H__
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#define __OCIO_CAPI_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct OCIO_GLSLDrawState;
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#define OCIO_DECLARE_HANDLE(name) typedef struct name##__ { int unused; } *name
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#define OCIO_ROLE_SCENE_LINEAR "scene_linear"
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#define OCIO_ROLE_COLOR_PICKING "color_picking"
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#define OCIO_ROLE_TEXTURE_PAINT "texture_paint"
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#define OCIO_ROLE_DEFAULT_BYTE "default_byte"
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#define OCIO_ROLE_DEFAULT_FLOAT "default_float"
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#define OCIO_ROLE_DEFAULT_SEQUENCER "default_sequencer"
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OCIO_DECLARE_HANDLE(OCIO_ConstConfigRcPtr);
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OCIO_DECLARE_HANDLE(OCIO_ConstColorSpaceRcPtr);
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OCIO_DECLARE_HANDLE(OCIO_ConstProcessorRcPtr);
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OCIO_DECLARE_HANDLE(OCIO_ConstContextRcPtr);
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OCIO_DECLARE_HANDLE(OCIO_PackedImageDesc);
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OCIO_DECLARE_HANDLE(OCIO_DisplayTransformRcPtr);
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OCIO_DECLARE_HANDLE(OCIO_ConstTransformRcPtr);
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OCIO_DECLARE_HANDLE(OCIO_ExponentTransformRcPtr);
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OCIO_DECLARE_HANDLE(OCIO_MatrixTransformRcPtr);
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OCIO_DECLARE_HANDLE(OCIO_ConstLookRcPtr);
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/* This structure is used to pass curve mapping settings from
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* blender's DNA structure stored in view transform settings
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* to a generic OpenColorIO C-API.
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*/
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typedef struct OCIO_CurveMappingSettings {
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/* This is a LUT which contain values for all 4 curve mapping tables
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* (combined, R, G and B).
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*
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* Element I for table T is stored at I * 4 + T element of this LUT.
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*
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* This array is usually returned by curvemapping_table_RGBA().
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*/
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float *lut;
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/* Size of single curve mapping table, 1/4 size of lut array. */
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int lut_size;
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/* Extend extrapolation flags for all the tables.
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* if use_extend_extrapolate[T] != 0 means extrapolation for
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* table T is needed.
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*/
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int use_extend_extrapolate[4];
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/* Minimal X value of the curve mapping tables. */
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float mintable[4];
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/* Per curve mapping table range. */
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float range[4];
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/* Lower extension value, stored as per-component arrays. */
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float ext_in_x[4], ext_in_y[4];
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/* Higher extension value, stored as per-component arrays. */
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float ext_out_x[4], ext_out_y[4];
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/* First points of the tables, both X and Y values.
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* Needed for easier and faster access when extrapolating.
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*/
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float first_x[4], first_y[4];
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/* Last points of the tables, both X and Y values.
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* Needed for easier and faster access when extrapolating.
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*/
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float last_x[4], last_y[4];
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/* Premultiplication settings: black level and scale to match
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* with white level.
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*/
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float black[3], bwmul[3];
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/* Cache id of the original curve mapping, used to detect when
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* upload of new settings to GPU is needed.
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*/
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size_t cache_id;
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} OCIO_CurveMappingSettings;
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void OCIO_init(void);
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void OCIO_exit(void);
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OCIO_ConstConfigRcPtr *OCIO_getCurrentConfig(void);
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void OCIO_setCurrentConfig(const OCIO_ConstConfigRcPtr *config);
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OCIO_ConstConfigRcPtr *OCIO_configCreateFromEnv(void);
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OCIO_ConstConfigRcPtr *OCIO_configCreateFromFile(const char* filename);
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OCIO_ConstConfigRcPtr *OCIO_configCreateFallback(void);
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void OCIO_configRelease(OCIO_ConstConfigRcPtr *config);
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int OCIO_configGetNumColorSpaces(OCIO_ConstConfigRcPtr *config);
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const char *OCIO_configGetColorSpaceNameByIndex(OCIO_ConstConfigRcPtr *config, int index);
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OCIO_ConstColorSpaceRcPtr *OCIO_configGetColorSpace(OCIO_ConstConfigRcPtr *config, const char *name);
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int OCIO_configGetIndexForColorSpace(OCIO_ConstConfigRcPtr *config, const char *name);
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int OCIO_colorSpaceIsInvertible(OCIO_ConstColorSpaceRcPtr *cs);
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int OCIO_colorSpaceIsData(OCIO_ConstColorSpaceRcPtr *cs);
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void OCIO_colorSpaceRelease(OCIO_ConstColorSpaceRcPtr *cs);
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const char *OCIO_configGetDefaultDisplay(OCIO_ConstConfigRcPtr *config);
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int OCIO_configGetNumDisplays(OCIO_ConstConfigRcPtr *config);
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const char *OCIO_configGetDisplay(OCIO_ConstConfigRcPtr *config, int index);
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const char *OCIO_configGetDefaultView(OCIO_ConstConfigRcPtr *config, const char *display);
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int OCIO_configGetNumViews(OCIO_ConstConfigRcPtr *config, const char *display);
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const char *OCIO_configGetView(OCIO_ConstConfigRcPtr *config, const char *display, int index);
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const char *OCIO_configGetDisplayColorSpaceName(OCIO_ConstConfigRcPtr *config, const char *display, const char *view);
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int OCIO_configGetNumLooks(OCIO_ConstConfigRcPtr *config);
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const char *OCIO_configGetLookNameByIndex(OCIO_ConstConfigRcPtr *config, int index);
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OCIO_ConstLookRcPtr *OCIO_configGetLook(OCIO_ConstConfigRcPtr *config, const char *name);
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const char *OCIO_lookGetProcessSpace(OCIO_ConstLookRcPtr *look);
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void OCIO_lookRelease(OCIO_ConstLookRcPtr *look);
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OCIO_ConstProcessorRcPtr *OCIO_configGetProcessorWithNames(OCIO_ConstConfigRcPtr *config, const char *srcName, const char *dstName);
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OCIO_ConstProcessorRcPtr *OCIO_configGetProcessor(OCIO_ConstConfigRcPtr *config, OCIO_ConstTransformRcPtr *transform);
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void OCIO_processorApply(OCIO_ConstProcessorRcPtr *processor, OCIO_PackedImageDesc *img);
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void OCIO_processorApply_predivide(OCIO_ConstProcessorRcPtr *processor, OCIO_PackedImageDesc *img);
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void OCIO_processorApplyRGB(OCIO_ConstProcessorRcPtr *processor, float *pixel);
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void OCIO_processorApplyRGBA(OCIO_ConstProcessorRcPtr *processor, float *pixel);
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void OCIO_processorApplyRGBA_predivide(OCIO_ConstProcessorRcPtr *processor, float *pixel);
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void OCIO_processorRelease(OCIO_ConstProcessorRcPtr *p);
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const char *OCIO_colorSpaceGetName(OCIO_ConstColorSpaceRcPtr *cs);
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const char *OCIO_colorSpaceGetDescription(OCIO_ConstColorSpaceRcPtr *cs);
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const char *OCIO_colorSpaceGetFamily(OCIO_ConstColorSpaceRcPtr *cs);
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OCIO_DisplayTransformRcPtr *OCIO_createDisplayTransform(void);
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void OCIO_displayTransformSetInputColorSpaceName(OCIO_DisplayTransformRcPtr *dt, const char *name);
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void OCIO_displayTransformSetDisplay(OCIO_DisplayTransformRcPtr *dt, const char *name);
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void OCIO_displayTransformSetView(OCIO_DisplayTransformRcPtr *dt, const char *name);
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void OCIO_displayTransformSetDisplayCC(OCIO_DisplayTransformRcPtr *dt, OCIO_ConstTransformRcPtr *et);
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void OCIO_displayTransformSetLinearCC(OCIO_DisplayTransformRcPtr *dt, OCIO_ConstTransformRcPtr *et);
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void OCIO_displayTransformSetLooksOverride(OCIO_DisplayTransformRcPtr *dt, const char *looks);
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void OCIO_displayTransformSetLooksOverrideEnabled(OCIO_DisplayTransformRcPtr *dt, bool enabled);
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void OCIO_displayTransformRelease(OCIO_DisplayTransformRcPtr *dt);
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OCIO_PackedImageDesc *OCIO_createOCIO_PackedImageDesc(float *data, long width, long height, long numChannels,
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long chanStrideBytes, long xStrideBytes, long yStrideBytes);
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void OCIO_PackedImageDescRelease(OCIO_PackedImageDesc *p);
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OCIO_ExponentTransformRcPtr *OCIO_createExponentTransform(void);
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void OCIO_exponentTransformSetValue(OCIO_ExponentTransformRcPtr *et, const float *exponent);
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void OCIO_exponentTransformRelease(OCIO_ExponentTransformRcPtr *et);
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OCIO_MatrixTransformRcPtr *OCIO_createMatrixTransform(void);
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void OCIO_matrixTransformSetValue(OCIO_MatrixTransformRcPtr *mt, const float *m44, const float *offset4);
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void OCIO_matrixTransformRelease(OCIO_MatrixTransformRcPtr *mt);
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void OCIO_matrixTransformScale(float *m44, float *offset4, const float *scale4);
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int OCIO_supportGLSLDraw(void);
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int OCIO_setupGLSLDraw(struct OCIO_GLSLDrawState **state_r, OCIO_ConstProcessorRcPtr *processor,
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OCIO_CurveMappingSettings *curve_mapping_settings, float dither, bool predivide);
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void OCIO_finishGLSLDraw(struct OCIO_GLSLDrawState *state);
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void OCIO_freeOGLState(struct OCIO_GLSLDrawState *state);
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const char *OCIO_getVersionString(void);
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int OCIO_getVersionHex(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* OCIO_CAPI_H */
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