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700d020390
This will help support Chrome and should also let us output directly to a cairo compatible format.
300 lines
7.5 KiB
C
300 lines
7.5 KiB
C
/* vim: set ts=8 sw=8 noexpandtab: */
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#include "qcms.h"
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#include "qcmstypes.h"
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/* used as a lookup table for the output transformation.
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* we refcount them so we only need to have one around per output
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* profile, instead of duplicating them per transform */
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struct precache_output
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{
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int ref_count;
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/* We previously used a count of 65536 here but that seems like more
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* precision than we actually need. By reducing the size we can
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* improve startup performance and reduce memory usage. ColorSync on
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* 10.5 uses 4097 which is perhaps because they use a fixed point
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* representation where 1. is represented by 0x1000. */
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#define PRECACHE_OUTPUT_SIZE 8192
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#define PRECACHE_OUTPUT_MAX (PRECACHE_OUTPUT_SIZE-1)
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uint8_t data[PRECACHE_OUTPUT_SIZE];
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};
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#ifdef _MSC_VER
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#define ALIGN __declspec(align(16))
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#else
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#define ALIGN __attribute__(( aligned (16) ))
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#endif
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struct _qcms_transform {
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float ALIGN matrix[3][4];
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float *input_gamma_table_r;
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float *input_gamma_table_g;
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float *input_gamma_table_b;
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float *input_clut_table_r;
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float *input_clut_table_g;
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float *input_clut_table_b;
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uint16_t input_clut_table_length;
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float *r_clut;
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float *g_clut;
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float *b_clut;
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uint16_t grid_size;
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float *output_clut_table_r;
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float *output_clut_table_g;
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float *output_clut_table_b;
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uint16_t output_clut_table_length;
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float *input_gamma_table_gray;
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float out_gamma_r;
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float out_gamma_g;
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float out_gamma_b;
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float out_gamma_gray;
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uint16_t *output_gamma_lut_r;
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uint16_t *output_gamma_lut_g;
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uint16_t *output_gamma_lut_b;
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uint16_t *output_gamma_lut_gray;
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size_t output_gamma_lut_r_length;
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size_t output_gamma_lut_g_length;
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size_t output_gamma_lut_b_length;
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size_t output_gamma_lut_gray_length;
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struct precache_output *output_table_r;
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struct precache_output *output_table_g;
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struct precache_output *output_table_b;
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void (*transform_fn)(struct _qcms_transform *transform, unsigned char *src, unsigned char *dest, size_t length);
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};
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struct matrix {
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float m[3][3];
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bool invalid;
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};
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struct qcms_modular_transform;
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typedef void (*transform_module_fn_t)(struct qcms_modular_transform *transform, float *src, float *dest, size_t length);
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struct qcms_modular_transform {
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struct matrix matrix;
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float tx, ty, tz;
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float *input_clut_table_r;
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float *input_clut_table_g;
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float *input_clut_table_b;
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uint16_t input_clut_table_length;
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float *r_clut;
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float *g_clut;
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float *b_clut;
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uint16_t grid_size;
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float *output_clut_table_r;
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float *output_clut_table_g;
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float *output_clut_table_b;
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uint16_t output_clut_table_length;
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uint16_t *output_gamma_lut_r;
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uint16_t *output_gamma_lut_g;
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uint16_t *output_gamma_lut_b;
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size_t output_gamma_lut_r_length;
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size_t output_gamma_lut_g_length;
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size_t output_gamma_lut_b_length;
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transform_module_fn_t transform_module_fn;
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struct qcms_modular_transform *next_transform;
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};
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typedef int32_t s15Fixed16Number;
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typedef uint16_t uInt16Number;
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typedef uint8_t uInt8Number;
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struct XYZNumber {
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s15Fixed16Number X;
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s15Fixed16Number Y;
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s15Fixed16Number Z;
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};
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struct curveType {
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uint32_t type;
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uint32_t count;
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float parameter[7];
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uInt16Number data[];
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};
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struct lutmABType {
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uint8_t num_in_channels;
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uint8_t num_out_channels;
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// 16 is the upperbound, actual is 0..num_in_channels.
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uint8_t num_grid_points[16];
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s15Fixed16Number e00;
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s15Fixed16Number e01;
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s15Fixed16Number e02;
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s15Fixed16Number e03;
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s15Fixed16Number e10;
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s15Fixed16Number e11;
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s15Fixed16Number e12;
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s15Fixed16Number e13;
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s15Fixed16Number e20;
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s15Fixed16Number e21;
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s15Fixed16Number e22;
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s15Fixed16Number e23;
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// reversed elements (for mBA)
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bool reversed;
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float *clut_table;
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struct curveType *a_curves[10];
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struct curveType *b_curves[10];
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struct curveType *m_curves[10];
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float clut_table_data[];
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};
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/* should lut8Type and lut16Type be different types? */
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struct lutType { // used by lut8Type/lut16Type (mft2) only
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uint8_t num_input_channels;
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uint8_t num_output_channels;
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uint8_t num_clut_grid_points;
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s15Fixed16Number e00;
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s15Fixed16Number e01;
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s15Fixed16Number e02;
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s15Fixed16Number e10;
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s15Fixed16Number e11;
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s15Fixed16Number e12;
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s15Fixed16Number e20;
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s15Fixed16Number e21;
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s15Fixed16Number e22;
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uint16_t num_input_table_entries;
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uint16_t num_output_table_entries;
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float *input_table;
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float *clut_table;
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float *output_table;
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float table_data[];
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};
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#if 0
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/* this is from an intial idea of having the struct correspond to the data in
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* the file. I decided that it wasn't a good idea.
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*/
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struct tag_value {
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uint32_t type;
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union {
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struct {
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uint32_t reserved;
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struct {
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s15Fixed16Number X;
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s15Fixed16Number Y;
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s15Fixed16Number Z;
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} XYZNumber;
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} XYZType;
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};
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}; // I guess we need to pack this?
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#endif
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#define RGB_SIGNATURE 0x52474220
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#define GRAY_SIGNATURE 0x47524159
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#define XYZ_SIGNATURE 0x58595A20
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#define LAB_SIGNATURE 0x4C616220
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struct _qcms_profile {
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uint32_t class;
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uint32_t color_space;
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uint32_t pcs;
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qcms_intent rendering_intent;
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struct XYZNumber redColorant;
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struct XYZNumber blueColorant;
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struct XYZNumber greenColorant;
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struct curveType *redTRC;
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struct curveType *blueTRC;
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struct curveType *greenTRC;
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struct curveType *grayTRC;
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struct lutType *A2B0;
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struct lutType *B2A0;
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struct lutmABType *mAB;
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struct lutmABType *mBA;
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struct matrix chromaticAdaption;
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struct precache_output *output_table_r;
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struct precache_output *output_table_g;
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struct precache_output *output_table_b;
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};
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#ifdef _MSC_VER
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#define inline _inline
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#endif
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/* produces the nearest float to 'a' with a maximum error
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* of 1/1024 which happens for large values like 0x40000040 */
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static inline float s15Fixed16Number_to_float(s15Fixed16Number a)
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{
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return ((int32_t)a)/65536.f;
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}
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static inline s15Fixed16Number double_to_s15Fixed16Number(double v)
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{
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return (int32_t)(v*65536);
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}
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static inline float uInt8Number_to_float(uInt8Number a)
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{
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return ((int32_t)a)/255.f;
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}
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static inline float uInt16Number_to_float(uInt16Number a)
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{
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return ((int32_t)a)/65535.f;
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}
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void precache_release(struct precache_output *p);
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qcms_bool set_rgb_colorants(qcms_profile *profile, qcms_CIE_xyY white_point, qcms_CIE_xyYTRIPLE primaries);
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void qcms_transform_data_rgb_out_lut_sse2(qcms_transform *transform,
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unsigned char *src,
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unsigned char *dest,
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size_t length);
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void qcms_transform_data_rgba_out_lut_sse2(qcms_transform *transform,
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unsigned char *src,
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unsigned char *dest,
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size_t length);
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void qcms_transform_data_rgb_out_lut_sse1(qcms_transform *transform,
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unsigned char *src,
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unsigned char *dest,
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size_t length);
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void qcms_transform_data_rgba_out_lut_sse1(qcms_transform *transform,
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unsigned char *src,
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unsigned char *dest,
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size_t length);
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extern qcms_bool qcms_supports_iccv4;
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#ifdef NATIVE_OUTPUT
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# define RGB_OUTPUT_COMPONENTS 4
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# define RGBA_OUTPUT_COMPONENTS 4
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# ifdef IS_LITTLE_ENDIAN
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# define OUTPUT_INDEX_A 3
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# define OUTPUT_INDEX_R 2
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# define OUTPUT_INDEX_G 1
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# define OUTPUT_INDEX_B 0
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# else
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# define OUTPUT_INDEX_A 0
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# define OUTPUT_INDEX_R 1
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# define OUTPUT_INDEX_G 2
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# define OUTPUT_INDEX_B 3
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# endif
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#else
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# define RGB_OUTPUT_COMPONENTS 3
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# define RGBA_OUTPUT_COMPONENTS 4
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# define OUTPUT_R_INDEX 0
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# define OUTPUT_G_INDEX 1
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# define OUTPUT_B_INDEX 2
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# define OUTPUT_A_INDEX 3
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#endif
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