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144 lines
3.1 KiB
C
144 lines
3.1 KiB
C
#include <stdlib.h>
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#include "qcms.h"
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#include "qcmstypes.h"
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/* used as a 16bit 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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uint8_t data[65535];
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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_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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typedef int32_t s15Fixed16Number;
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typedef uint16_t uInt16Number;
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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 count;
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uInt16Number data[0];
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};
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struct lutType {
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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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uint16_t *input_table;
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uint16_t *clut_table;
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uint16_t *output_table;
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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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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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struct _qcms_profile {
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uint32_t class;
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uint32_t color_space;
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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 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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static inline float s15Fixed16Number_to_float(s15Fixed16Number a)
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{
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return ((int32_t)a)/65536.;
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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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void precache_release(struct precache_output *p);
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void set_rgb_colorants(qcms_profile *profile, qcms_CIE_xyY white_point, qcms_CIE_xyYTRIPLE primaries);
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