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Searched refs:screen_gamma (Results 1 – 14 of 14) sorted by relevance

/external/libpng/
Dexample.c434 screen_gamma = user-defined screen_gamma;
437 screen_gamma = atof(gamma_str);
441 screen_gamma = PNG_DEFAULT_sRGB; /* A good guess for a PC monitor
443 screen_gamma = PNG_GAMMA_MAC_18 or 1.0; /* Good guesses for Mac
456 png_set_gamma(png_ptr, screen_gamma, PNG_DEFAULT_sRGB);
461 png_set_gamma(png_ptr, screen_gamma, image_gamma);
463 png_set_gamma(png_ptr, screen_gamma, 0.45455);
Dpngrtran.c377 png_ptr->screen_gamma = output_gamma; in png_set_alpha_mode_fixed()
853 png_ptr->screen_gamma = scrn_gamma; in png_set_gamma_fixed()
1092 png_gamma_threshold(png_fixed_point screen_gamma, png_fixed_point file_gamma) in png_gamma_threshold() argument
1102 return !png_muldiv(&gtest, screen_gamma, file_gamma, PNG_FP_1) || in png_gamma_threshold()
1318 if (png_ptr->screen_gamma != 0) /* screen set too */ in png_init_read_transformations()
1320 png_ptr->screen_gamma); in png_init_read_transformations()
1326 png_ptr->screen_gamma = png_reciprocal(png_ptr->colorspace.gamma); in png_init_read_transformations()
1329 else if (png_ptr->screen_gamma != 0) in png_init_read_transformations()
1335 png_ptr->colorspace.gamma = png_reciprocal(png_ptr->screen_gamma); in png_init_read_transformations()
1343 png_ptr->screen_gamma = png_ptr->colorspace.gamma = PNG_FP_1; in png_init_read_transformations()
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Dpng.c4215 png_ptr->screen_gamma > 0 ?
4217 png_ptr->screen_gamma) : PNG_FP_1);
4228 png_ptr->screen_gamma > 0 ?
4229 png_reciprocal(png_ptr->screen_gamma) :
4299 png_ptr->screen_gamma > 0 ? png_product2(png_ptr->colorspace.gamma,
4300 png_ptr->screen_gamma) : PNG_FP_1);
4304 png_ptr->screen_gamma > 0 ? png_reciprocal2(png_ptr->colorspace.gamma,
4305 png_ptr->screen_gamma) : PNG_FP_1);
4320 png_ptr->screen_gamma > 0 ? png_reciprocal(png_ptr->screen_gamma) :
Dpngstruct.h291 png_fixed_point screen_gamma; /* screen gamma value (display_exponent) */ member
Dpngread.c3177 png_ptr->screen_gamma == PNG_GAMMA_sRGB && in png_image_read_colormapped()
3187 png_ptr->screen_gamma == PNG_GAMMA_sRGB && in png_image_read_colormapped()
3197 png_ptr->screen_gamma == PNG_GAMMA_sRGB && in png_image_read_colormapped()
Dpng.h1351 double screen_gamma, double override_file_gamma))
1353 png_fixed_point screen_gamma, png_fixed_point override_file_gamma))
Dlibpng-manual.txt725 png_set_gamma(png_ptr, screen_gamma, output_gamma);
729 png_set_gamma_fixed(png_ptr, PNG_FP_1*screen_gamma,
832 png_set_alpha_mode(png_ptr, mode, screen_gamma);
834 png_set_gamma(png_ptr, screen_gamma, 1.0/screen_gamma);
837 The screen_gamma value is the same as the argument to png_set_gamma; however,
839 file gamma default to 1/screen_gamma, so normally you don't need to call
907 component values, whatever screen_gamma you supply. The
908 screen_gamma value is, however, used as a default for
926 the screen_gamma value. Pixels with alpha less than 1.0
959 screen_gamma);
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DCHANGES223 Cosmetic change "display_gamma" to "screen_gamma" in pngrtran.c
226 screen_gamma, viewing_gamma, and display_gamma.
/external/pdfium/third_party/libpng16/
Dpngrtran.c377 png_ptr->screen_gamma = output_gamma; in png_set_alpha_mode_fixed()
853 png_ptr->screen_gamma = scrn_gamma; in png_set_gamma_fixed()
1092 png_gamma_threshold(png_fixed_point screen_gamma, png_fixed_point file_gamma) in png_gamma_threshold() argument
1102 return !png_muldiv(&gtest, screen_gamma, file_gamma, PNG_FP_1) || in png_gamma_threshold()
1318 if (png_ptr->screen_gamma != 0) /* screen set too */ in png_init_read_transformations()
1320 png_ptr->screen_gamma); in png_init_read_transformations()
1326 png_ptr->screen_gamma = png_reciprocal(png_ptr->colorspace.gamma); in png_init_read_transformations()
1329 else if (png_ptr->screen_gamma != 0) in png_init_read_transformations()
1335 png_ptr->colorspace.gamma = png_reciprocal(png_ptr->screen_gamma); in png_init_read_transformations()
1343 png_ptr->screen_gamma = png_ptr->colorspace.gamma = PNG_FP_1; in png_init_read_transformations()
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Dpng.c4216 png_ptr->screen_gamma > 0 ?
4218 png_ptr->screen_gamma) : PNG_FP_1);
4229 png_ptr->screen_gamma > 0 ?
4230 png_reciprocal(png_ptr->screen_gamma) :
4300 png_ptr->screen_gamma > 0 ? png_product2(png_ptr->colorspace.gamma,
4301 png_ptr->screen_gamma) : PNG_FP_1);
4305 png_ptr->screen_gamma > 0 ? png_reciprocal2(png_ptr->colorspace.gamma,
4306 png_ptr->screen_gamma) : PNG_FP_1);
4321 png_ptr->screen_gamma > 0 ? png_reciprocal(png_ptr->screen_gamma) :
Dpngstruct.h291 png_fixed_point screen_gamma; /* screen gamma value (display_exponent) */ member
Dpngread.c3177 png_ptr->screen_gamma == PNG_GAMMA_sRGB && in png_image_read_colormapped()
3187 png_ptr->screen_gamma == PNG_GAMMA_sRGB && in png_image_read_colormapped()
3197 png_ptr->screen_gamma == PNG_GAMMA_sRGB && in png_image_read_colormapped()
Dpng.h1351 double screen_gamma, double override_file_gamma))
1353 png_fixed_point screen_gamma, png_fixed_point override_file_gamma))
/external/libpng/contrib/libtests/
Dpngvalid.c9215 double screen_gamma; member
9235 double file_gamma, double screen_gamma, png_byte sbit, int threshold_test, in gamma_display_init() argument
9247 dp->screen_gamma = screen_gamma; in gamma_display_init()
9305 const double sg = dp->screen_gamma; in gamma_info_imp()
9339 png_set_gamma(pp, dp->screen_gamma, dp->file_gamma); in gamma_info_imp()
9342 png_fixed_point s = fix(dp->screen_gamma); in gamma_info_imp()
9408 double screen_gamma; member
9451 vi->screen_gamma = dp->screen_gamma; in init_validate_info()
9452 if (fabs(vi->screen_gamma-1) < PNG_GAMMA_THRESHOLD) in init_validate_info()
9453 vi->screen_gamma = vi->screen_inverse = 0; in init_validate_info()
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