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Don't export color constants since that breaks with DLLs... (Issue #19)

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Michael R Sweet
2021-08-18 10:17:47 -04:00
parent 21823fb0d9
commit e71c1a7e5e
4 changed files with 58 additions and 52 deletions
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55
pdfio-content.c
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@@ -20,22 +20,6 @@
#endif // M_PI
//
// Global constants...
//
const double pdfioAdobeRGBGamma = 2.2;
const double pdfioAdobeRGBMatrix[3][3] = { { 0.57667, 0.18556, 0.18823 }, { 0.29734, 0.62736, 0.07529 }, { 0.02703, 0.07069, 0.99134 } };
const double pdfioAdobeRGBWhitePoint[3] = { 0.9505, 1.0, 1.0890 };
const double pdfioDisplayP3Gamma = 2.2;
const double pdfioDisplayP3Matrix[3][3] = { { 0.48657, 0.26567, 0.19822 }, {
0.22897, 0.69174, 0.07929 }, { 0.00000, 0.04511, 1.04394 } };
const double pdfioDisplayP3WhitePoint[3] = { 0.9505, 1.0, 1.0890 };
const double pdfioSRGBGamma = 2.2;
const double pdfioSRGBMatrix[3][3] = { { 0.4124, 0.3576, 0.1805 }, { 0.2126, 0.7152, 0.0722 }, { 0.0193, 0.1192, 0.9505 } };
const double pdfioSRGBWhitePoint[3] = { 0.9505, 1.0, 1.0890 };
//
// Local constants...
//
@@ -377,6 +361,41 @@ pdfioArrayCreateColorFromPrimaries(
}
//
// 'pdfioArrayCreateColorFromStandard()' - Create a color array for a standard color space.
//
// This function creates a color array for a standard `PDFIO_CS_` enumerated constant.
// The "num_colors" argument must be `1` for grayscale and `3` for RGB color.
//
pdfio_array_t * // O - Color array
pdfioArrayCreateColorFromStandard(
pdfio_file_t *pdf, // I - PDF file
size_t num_colors, // I - Number of colors (1 or 3)
pdfio_cs_t cs) // I - Color space enumeration
{
static const double adobe_matrix[3][3] = { { 0.57667, 0.18556, 0.18823 }, { 0.29734, 0.62736, 0.07529 }, { 0.02703, 0.07069, 0.99134 } };
static const double d65_white_point[3] = { 0.9505, 1.0, 1.0890 };
static const double p3_d65_matrix[3][3] = { { 0.48657, 0.26567, 0.19822 }, { 0.22897, 0.69174, 0.07929 }, { 0.00000, 0.04511, 1.04394 } };
static const double srgb_matrix[3][3] = { { 0.4124, 0.3576, 0.1805 }, { 0.2126, 0.7152, 0.0722 }, { 0.0193, 0.1192, 0.9505 } };
// Range check input...
if (!pdf || (num_colors != 1 && num_colors != 3) || cs < PDFIO_CS_ADOBE || cs > PDFIO_CS_SRGB)
return (NULL);
switch (cs)
{
case PDFIO_CS_ADOBE :
return (pdfioArrayCreateColorFromMatrix(pdf, num_colors, 2.2, adobe_matrix, d65_white_point));
case PDFIO_CS_P3_D65 :
return (pdfioArrayCreateColorFromMatrix(pdf, num_colors, 2.2, p3_d65_matrix, d65_white_point));
case PDFIO_CS_SRGB :
return (pdfioArrayCreateColorFromMatrix(pdf, num_colors, 2.2, srgb_matrix, d65_white_point));
}
}
//
// 'pdfioContentClip()' - Clip output to the current path.
//
@@ -2245,7 +2264,7 @@ copy_jpeg(pdfio_dict_t *dict, // I - Dictionary
pdfioDictSetNumber(dict, "Width", width);
pdfioDictSetNumber(dict, "Height", height);
pdfioDictSetNumber(dict, "BitsPerComponent", 8);
pdfioDictSetArray(dict, "ColorSpace", pdfioArrayCreateColorFromMatrix(dict->pdf, num_colors, pdfioSRGBGamma, pdfioSRGBMatrix, pdfioSRGBWhitePoint));
pdfioDictSetArray(dict, "ColorSpace", pdfioArrayCreateColorFromStandard(dict->pdf, num_colors, PDFIO_CS_SRGB));
pdfioDictSetName(dict, "Filter", "DCTDecode");
obj = pdfioFileCreateObj(dict->pdf, dict);
@@ -2330,7 +2349,7 @@ copy_png(pdfio_dict_t *dict, // I - Dictionary
if (wx != 0.0)
pdfioDictSetArray(dict, "ColorSpace", pdfioArrayCreateColorFromPrimaries(dict->pdf, color_type == _PDFIO_PNG_TYPE_GRAY ? 1 : 3, gamma, wx, wy, rx, ry, bx, by, gx, gy));
else
pdfioDictSetArray(dict, "ColorSpace", pdfioArrayCreateColorFromMatrix(dict->pdf, color_type == _PDFIO_PNG_TYPE_GRAY ? 1 : 3, gamma, pdfioSRGBMatrix, pdfioSRGBWhitePoint));
pdfioDictSetArray(dict, "ColorSpace", pdfioArrayCreateColorFromStandard(dict->pdf, color_type == _PDFIO_PNG_TYPE_GRAY ? 1 : 3, PDFIO_CS_SRGB));
}
obj = pdfioFileCreateObj(dict->pdf, dict);