third_party/qcms/src/qcmsint.h

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This source file includes following definitions.
s15Fixed16Number_to_float
double_to_s15Fixed16Number
uInt8Number_to_float
uInt16Number_to_float
/* vim: set ts=8 sw=8 noexpandtab: */
//  qcms
//  Copyright (C) 2009 Mozilla Foundation
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

#include "qcms.h"
#include "qcmstypes.h"

/* used as a lookup table for the output transformation.
 * we refcount them so we only need to have one around per output
 * profile, instead of duplicating them per transform */
struct precache_output
{
        int ref_count;
        /* We previously used a count of 65536 here but that seems like more
         * precision than we actually need.  By reducing the size we can
         * improve startup performance and reduce memory usage. ColorSync on
         * 10.5 uses 4097 which is perhaps because they use a fixed point
         * representation where 1. is represented by 0x1000. */
#define PRECACHE_OUTPUT_SIZE 8192
#define PRECACHE_OUTPUT_MAX (PRECACHE_OUTPUT_SIZE-1)
        uint8_t data[PRECACHE_OUTPUT_SIZE];
};

#ifdef _MSC_VER
#define ALIGN __declspec(align(16))
#else
#define ALIGN __attribute__(( aligned (16) ))
#endif

typedef struct _qcms_format_type {
        int r;
        int b;
} qcms_format_type;

struct _qcms_transform {
        float ALIGN matrix[3][4];
        float *input_gamma_table_r;
        float *input_gamma_table_g;
        float *input_gamma_table_b;

        float *input_clut_table_r;
        float *input_clut_table_g;
        float *input_clut_table_b;
        uint16_t input_clut_table_length;
        float *r_clut;
        float *g_clut;
        float *b_clut;
        uint16_t grid_size;
        float *output_clut_table_r;
        float *output_clut_table_g;
        float *output_clut_table_b;
        uint16_t output_clut_table_length;
 
        float *input_gamma_table_gray;

        float out_gamma_r;
        float out_gamma_g;
        float out_gamma_b;

        float out_gamma_gray;

        uint16_t *output_gamma_lut_r;
        uint16_t *output_gamma_lut_g;
        uint16_t *output_gamma_lut_b;

        uint16_t *output_gamma_lut_gray;

        size_t output_gamma_lut_r_length;
        size_t output_gamma_lut_g_length;
        size_t output_gamma_lut_b_length;

        size_t output_gamma_lut_gray_length;

        struct precache_output *output_table_r;
        struct precache_output *output_table_g;
        struct precache_output *output_table_b;

        void (*transform_fn)(struct _qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length, struct _qcms_format_type output_format);
};

struct matrix {
        float m[3][3];
        bool invalid;
};

struct qcms_modular_transform;

typedef void (*transform_module_fn_t)(struct qcms_modular_transform *transform, float *src, float *dest, size_t length);

struct qcms_modular_transform {
        struct matrix matrix;
        float tx, ty, tz;

        float *input_clut_table_r;
        float *input_clut_table_g;
        float *input_clut_table_b;
        uint16_t input_clut_table_length;
        float *r_clut;
        float *g_clut;
        float *b_clut;
        uint16_t grid_size;
        float *output_clut_table_r;
        float *output_clut_table_g;
        float *output_clut_table_b;
        uint16_t output_clut_table_length;
 
        uint16_t *output_gamma_lut_r;
        uint16_t *output_gamma_lut_g;
        uint16_t *output_gamma_lut_b;

        size_t output_gamma_lut_r_length;
        size_t output_gamma_lut_g_length;
        size_t output_gamma_lut_b_length;

        transform_module_fn_t transform_module_fn;
        struct qcms_modular_transform *next_transform;
};

typedef int32_t s15Fixed16Number;
typedef uint16_t uInt16Number;
typedef uint8_t uInt8Number;

struct XYZNumber {
        s15Fixed16Number X;
        s15Fixed16Number Y;
        s15Fixed16Number Z;
};

struct curveType {
        uint32_t type;
        uint32_t count;
        float parameter[7];
        uInt16Number data[];
};

struct lutmABType {
        uint8_t num_in_channels;
        uint8_t num_out_channels;
        // 16 is the upperbound, actual is 0..num_in_channels.
        uint8_t num_grid_points[16];

        s15Fixed16Number e00;
        s15Fixed16Number e01;
        s15Fixed16Number e02;
        s15Fixed16Number e03;
        s15Fixed16Number e10;
        s15Fixed16Number e11;
        s15Fixed16Number e12;
        s15Fixed16Number e13;
        s15Fixed16Number e20;
        s15Fixed16Number e21;
        s15Fixed16Number e22;
        s15Fixed16Number e23;

        // reversed elements (for mBA)
        bool reversed;

        float *clut_table;
        struct curveType *a_curves[10];
        struct curveType *b_curves[10];
        struct curveType *m_curves[10];
        float clut_table_data[];
};

/* should lut8Type and lut16Type be different types? */
struct lutType { // used by lut8Type/lut16Type (mft2) only
        uint8_t num_input_channels;
        uint8_t num_output_channels;
        uint8_t num_clut_grid_points;

        s15Fixed16Number e00;
        s15Fixed16Number e01;
        s15Fixed16Number e02;
        s15Fixed16Number e10;
        s15Fixed16Number e11;
        s15Fixed16Number e12;
        s15Fixed16Number e20;
        s15Fixed16Number e21;
        s15Fixed16Number e22;

        uint16_t num_input_table_entries;
        uint16_t num_output_table_entries;

        float *input_table;
        float *clut_table;
        float *output_table;

        float table_data[];
};
#if 0
/* this is from an intial idea of having the struct correspond to the data in
 * the file. I decided that it wasn't a good idea.
 */
struct tag_value {
        uint32_t type;
        union {
                struct {
                        uint32_t reserved;
                        struct {
                                s15Fixed16Number X;
                                s15Fixed16Number Y;
                                s15Fixed16Number Z;
                        } XYZNumber;
                } XYZType;
        };
}; // I guess we need to pack this?
#endif

#define RGB_SIGNATURE  0x52474220
#define GRAY_SIGNATURE 0x47524159
#define XYZ_SIGNATURE  0x58595A20
#define LAB_SIGNATURE  0x4C616220

struct _qcms_profile {
        uint32_t class;
        uint32_t color_space;
        uint32_t pcs;
        qcms_intent rendering_intent;
        struct XYZNumber redColorant;
        struct XYZNumber blueColorant;
        struct XYZNumber greenColorant;
        struct curveType *redTRC;
        struct curveType *blueTRC;
        struct curveType *greenTRC;
        struct curveType *grayTRC;
        struct lutType *A2B0;
        struct lutType *B2A0;
        struct lutmABType *mAB;
        struct lutmABType *mBA;
        struct matrix chromaticAdaption;

        struct precache_output *output_table_r;
        struct precache_output *output_table_g;
        struct precache_output *output_table_b;
};

#ifdef _MSC_VER
#define inline _inline
#endif

/* produces the nearest float to 'a' with a maximum error
 * of 1/1024 which happens for large values like 0x40000040 */
static inline float s15Fixed16Number_to_float(s15Fixed16Number a)
{
        return ((int32_t)a)/65536.f;
}

static inline s15Fixed16Number double_to_s15Fixed16Number(double v)
{
        return (int32_t)(v*65536);
}

static inline float uInt8Number_to_float(uInt8Number a)
{
        return ((int32_t)a)/255.f;
}

static inline float uInt16Number_to_float(uInt16Number a)
{
        return ((int32_t)a)/65535.f;
}


void precache_release(struct precache_output *p);
qcms_bool set_rgb_colorants(qcms_profile *profile, qcms_CIE_xyY white_point, qcms_CIE_xyYTRIPLE primaries);

void qcms_transform_data_rgb_out_lut_sse2(qcms_transform *transform,
                                          unsigned char *src,
                                          unsigned char *dest,
                                          size_t length,
                                          qcms_format_type output_format);
void qcms_transform_data_rgba_out_lut_sse2(qcms_transform *transform,
                                          unsigned char *src,
                                          unsigned char *dest,
                                          size_t length,
                                          qcms_format_type output_format);
void qcms_transform_data_rgb_out_lut_sse1(qcms_transform *transform,
                                          unsigned char *src,
                                          unsigned char *dest,
                                          size_t length,
                                          qcms_format_type output_format);
void qcms_transform_data_rgba_out_lut_sse1(qcms_transform *transform,
                                          unsigned char *src,
                                          unsigned char *dest,
                                          size_t length,
                                          qcms_format_type output_format);

extern qcms_bool qcms_supports_iccv4;


#ifdef _MSC_VER

long __cdecl _InterlockedIncrement(long volatile *);
long __cdecl _InterlockedDecrement(long volatile *);
#pragma intrinsic(_InterlockedIncrement)
#pragma intrinsic(_InterlockedDecrement)

#define qcms_atomic_increment(x) _InterlockedIncrement((long volatile *)&x)
#define qcms_atomic_decrement(x) _InterlockedDecrement((long volatile*)&x)

#else

#define qcms_atomic_increment(x) __sync_add_and_fetch(&x, 1)
#define qcms_atomic_decrement(x) __sync_sub_and_fetch(&x, 1)

#endif
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root/third_party/qcms/src/qcmsint.h

INCLUDED FROM

DEFINITIONS
