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ICC profile support (Issue #3)
This commit is contained in:
Michael R Sweet
parent
6aab99d4b3
commit
5533408c09
206
pdfio-content.c
206
pdfio-content.c
@ -121,11 +121,38 @@ static unsigned png_crc_table[256] = // CRC-32 table for PNG files
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//
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// 'pdfioArrayCreateCalibratedColorFromMatrix()' - Create a calibrated color space array using a CIE XYZ transform matrix.
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// 'pdfioArrayCreateColorFromICCObj()' - Create an ICC-based color space array.
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//
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pdfio_array_t * // O - Color array
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pdfioArrayCreateColorFromICCObj(
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pdfio_file_t *pdf, // I - PDF file
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pdfio_obj_t *icc_object) // I - ICC profile object
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{
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pdfio_array_t *icc_color; // Color array
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// Range check input...
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if (!pdf || !icc_object)
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return (NULL);
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// Create the array with two values - a name and an object reference...
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if ((icc_color = pdfioArrayCreate(pdf)) == NULL)
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return (NULL);
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pdfioArrayAppendName(icc_color, "ICCBased");
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pdfioArrayAppendObj(icc_color, icc_object);
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return (icc_color);
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}
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//
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// 'pdfioArrayCreateColorFromMatrix()' - Create a calibrated color space array using a CIE XYZ transform matrix.
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//
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pdfio_array_t * // O - Color space array
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pdfioArrayCreateCalibratedColorFromMatrix(
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pdfioArrayCreateColorFromMatrix(
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pdfio_file_t *pdf, // I - PDF file
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size_t num_colors, // I - Number of colors (1 or 3)
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double gamma, // I - Gamma value
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@ -207,11 +234,41 @@ pdfioArrayCreateCalibratedColorFromMatrix(
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//
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// 'pdfioArrayCreateCalibratedColorFromPrimaries()' - Create a calibrated color sapce array using CIE xy primary chromacities.
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// 'pdfioArrayCreateColorFromPalette()' - Create an indexed color space array.
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//
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pdfio_array_t * // O - Color array
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pdfioArrayCreateColorFromPalette(
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pdfio_file_t *pdf, // I - PDF file
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size_t num_colors, // I - Number of colors
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const unsigned char *colors) // I - RGB values for colors
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{
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pdfio_array_t *indexed_color; // Color array
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// Range check input...
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if (!pdf || num_colors < 1 || !colors)
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return (NULL);
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// Create the array with four values...
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if ((indexed_color = pdfioArrayCreate(pdf)) == NULL)
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return (NULL);
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pdfioArrayAppendName(indexed_color, "Indexed");
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pdfioArrayAppendName(indexed_color, "DeviceRGB");
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pdfioArrayAppendNumber(indexed_color, num_colors - 1);
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pdfioArrayAppendBinary(indexed_color, colors, num_colors * 3);
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return (indexed_color);
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}
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//
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// 'pdfioArrayCreateColorFromPrimaries()' - Create a calibrated color sapce array using CIE xy primary chromacities.
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//
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pdfio_array_t * // O - Color space array
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pdfioArrayCreateCalibratedColorFromPrimaries(
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pdfioArrayCreateColorFromPrimaries(
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pdfio_file_t *pdf, // I - PDF file
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size_t num_colors, // I - Number of colors (1 or 3)
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double gamma, // I - Gama value
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@ -274,64 +331,7 @@ pdfioArrayCreateCalibratedColorFromPrimaries(
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PDFIO_DEBUG("pdfioFileCreateCalibratedColorFromPrimaries: matrix=[%g %g %g %g %g %g %g %g %g]\n", matrix[0][0], matrix[1][0], matrix[2][0], matrix[0][1], matrix[1][1], matrix[2][2], matrix[0][2], matrix[1][2], matrix[2][1]);
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// Now that we have the white point and matrix, use those to make the color array...
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return (pdfioArrayCreateCalibratedColorFromMatrix(pdf, num_colors, gamma, matrix, white_point));
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}
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//
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// 'pdfioArrayCreateICCBasedColor()' - Create an ICC-based color space array.
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//
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pdfio_array_t * // O - Color array
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pdfioArrayCreateICCBasedColor(
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pdfio_file_t *pdf, // I - PDF file
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pdfio_obj_t *icc_object) // I - ICC profile object
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{
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pdfio_array_t *icc_color; // Color array
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// Range check input...
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if (!pdf || !icc_object)
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return (NULL);
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// Create the array with two values - a name and an object reference...
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if ((icc_color = pdfioArrayCreate(pdf)) == NULL)
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return (NULL);
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pdfioArrayAppendName(icc_color, "ICCBased");
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pdfioArrayAppendObj(icc_color, icc_object);
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return (icc_color);
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}
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//
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// 'pdfioArrayCreateIndexedColor()' - Create an indexed color space array.
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//
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pdfio_array_t * // O - Color array
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pdfioArrayCreateIndexedColor(
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pdfio_file_t *pdf, // I - PDF file
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size_t num_colors, // I - Number of colors
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const unsigned char *colors) // I - RGB values for colors
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{
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pdfio_array_t *indexed_color; // Color array
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// Range check input...
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if (!pdf || num_colors < 1 || !colors)
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return (NULL);
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// Create the array with four values...
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if ((indexed_color = pdfioArrayCreate(pdf)) == NULL)
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return (NULL);
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pdfioArrayAppendName(indexed_color, "Indexed");
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pdfioArrayAppendName(indexed_color, "DeviceRGB");
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pdfioArrayAppendNumber(indexed_color, num_colors - 1);
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pdfioArrayAppendBinary(indexed_color, colors, num_colors * 3);
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return (indexed_color);
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return (pdfioArrayCreateColorFromMatrix(pdf, num_colors, gamma, matrix, white_point));
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}
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@ -1177,18 +1177,82 @@ pdfioFileCreateFontObj(
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//
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// 'pdfioFileCreateICCProfileObj()' - Add an ICC profile object to a PDF file.
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// 'pdfioFileCreateICCObj()' - Add an ICC profile object to a PDF file.
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//
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pdfio_obj_t * // O - Object
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pdfioFileCreateICCProfileObj(
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pdfioFileCreateICCObj(
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pdfio_file_t *pdf, // I - PDF file
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const char *filename) // I - Filename
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const char *filename, // I - Filename
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size_t num_colors) // I - Number of color components (1, 3, or 4)
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{
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(void)pdf;
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(void)filename;
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pdfio_dict_t *dict; // ICC profile dictionary
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pdfio_obj_t *obj; // ICC profile object
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pdfio_stream_t *st; // ICC profile stream
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int fd; // File
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unsigned char buffer[16384]; // Read buffer
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ssize_t bytes; // Bytes read
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// Range check input...
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if (!pdf)
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return (NULL);
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if (!filename)
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{
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_pdfioFileError(pdf, "No ICC profile filename specified.");
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return (NULL);
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}
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if ((fd = open(filename, O_RDONLY | O_BINARY)) < 0)
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{
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_pdfioFileError(pdf, "Unable to open ICC profile '%s': %s", filename, strerror(errno));
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return (NULL);
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}
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if (num_colors != 1 && num_colors != 3 && num_colors != 4)
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{
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_pdfioFileError(pdf, "Unsupported number of colors (%lu) for ICC profile.", (unsigned long)num_colors);
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close(fd);
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return (NULL);
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}
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// Create the ICC profile object...
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if ((dict = pdfioDictCreate(pdf)) == NULL)
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{
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close(fd);
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return (NULL);
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}
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pdfioDictSetNumber(dict, "N", num_colors);
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pdfioDictSetName(dict, "Filter", "FlateDecode");
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if ((obj = pdfioFileCreateObj(pdf, dict)) == NULL)
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{
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close(fd);
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return (NULL);
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}
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if ((st = pdfioObjCreateStream(obj, PDFIO_FILTER_FLATE)) == NULL)
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{
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close(fd);
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return (NULL);
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}
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while ((bytes = read(fd, buffer, sizeof(buffer))) > 0)
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{
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if (!pdfioStreamWrite(st, buffer, (size_t)bytes))
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{
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close(fd);
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pdfioStreamClose(st);
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return (NULL);
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}
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}
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close(fd);
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pdfioStreamClose(st);
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return (obj);
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}
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@ -1603,7 +1667,7 @@ copy_jpeg(pdfio_dict_t *dict, // I - Dictionary
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pdfioDictSetNumber(dict, "Width", width);
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pdfioDictSetNumber(dict, "Height", height);
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pdfioDictSetNumber(dict, "BitsPerComponent", 8);
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pdfioDictSetArray(dict, "ColorSpace", pdfioArrayCreateCalibratedColorFromMatrix(dict->pdf, num_colors, pdfioSRGBGamma, pdfioSRGBMatrix, pdfioSRGBWhitePoint));
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pdfioDictSetArray(dict, "ColorSpace", pdfioArrayCreateColorFromMatrix(dict->pdf, num_colors, pdfioSRGBGamma, pdfioSRGBMatrix, pdfioSRGBWhitePoint));
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pdfioDictSetName(dict, "Filter", "DCTDecode");
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obj = pdfioFileCreateObj(dict->pdf, dict);
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@ -1686,9 +1750,9 @@ copy_png(pdfio_dict_t *dict, // I - Dictionary
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PDFIO_DEBUG("copy_png: Adding %s ColorSpace value.\n", color_type == _PDFIO_PNG_TYPE_GRAY ? "CalGray" : "CalRGB");
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if (wx != 0.0)
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pdfioDictSetArray(dict, "ColorSpace", pdfioArrayCreateCalibratedColorFromPrimaries(dict->pdf, color_type == _PDFIO_PNG_TYPE_GRAY ? 1 : 3, gamma, wx, wy, rx, ry, bx, by, gx, gy));
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pdfioDictSetArray(dict, "ColorSpace", pdfioArrayCreateColorFromPrimaries(dict->pdf, color_type == _PDFIO_PNG_TYPE_GRAY ? 1 : 3, gamma, wx, wy, rx, ry, bx, by, gx, gy));
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else
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pdfioDictSetArray(dict, "ColorSpace", pdfioArrayCreateCalibratedColorFromMatrix(dict->pdf, color_type == _PDFIO_PNG_TYPE_GRAY ? 1 : 3, gamma, pdfioSRGBMatrix, pdfioSRGBWhitePoint));
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pdfioDictSetArray(dict, "ColorSpace", pdfioArrayCreateColorFromMatrix(dict->pdf, color_type == _PDFIO_PNG_TYPE_GRAY ? 1 : 3, gamma, pdfioSRGBMatrix, pdfioSRGBWhitePoint));
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}
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obj = pdfioFileCreateObj(dict->pdf, dict);
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@ -1800,7 +1864,7 @@ copy_png(pdfio_dict_t *dict, // I - Dictionary
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PDFIO_DEBUG("copy_png: Adding Indexed ColorSpace value.\n");
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pdfioDictSetArray(dict, "ColorSpace", pdfioArrayCreateIndexedColor(dict->pdf, length / 3, buffer));
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pdfioDictSetArray(dict, "ColorSpace", pdfioArrayCreateColorFromPalette(dict->pdf, length / 3, buffer));
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break;
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case _PDFIO_PNG_CHUNK_cHRM : // Cromacities and white point
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@ -84,10 +84,10 @@ extern const double pdfioSRGBWhitePoint[3] PDFIO_PUBLIC;
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//
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// Color array functions...
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extern pdfio_array_t *pdfioArrayCreateCalibratedColorFromMatrix(pdfio_file_t *pdf, size_t num_colors, double gamma, const double matrix[3][3], const double white_point[3]) PDFIO_PUBLIC;
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extern pdfio_array_t *pdfioArrayCreateCalibratedColorFromPrimaries(pdfio_file_t *pdf, size_t num_colors, double gamma, double wx, double wy, double rx, double ry, double gx, double gy, double bx, double by) PDFIO_PUBLIC;
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extern pdfio_array_t *pdfioArrayCreateICCBasedColor(pdfio_file_t *pdf, pdfio_obj_t *icc_object) PDFIO_PUBLIC;
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extern pdfio_array_t *pdfioArrayCreateIndexedColor(pdfio_file_t *pdf, size_t num_colors, const unsigned char *colors) PDFIO_PUBLIC;
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extern pdfio_array_t *pdfioArrayCreateColorFromICCObj(pdfio_file_t *pdf, pdfio_obj_t *icc_object) PDFIO_PUBLIC;
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extern pdfio_array_t *pdfioArrayCreateColorFromMatrix(pdfio_file_t *pdf, size_t num_colors, double gamma, const double matrix[3][3], const double white_point[3]) PDFIO_PUBLIC;
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extern pdfio_array_t *pdfioArrayCreateColorFromPalette(pdfio_file_t *pdf, size_t num_colors, const unsigned char *colors) PDFIO_PUBLIC;
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extern pdfio_array_t *pdfioArrayCreateColorFromPrimaries(pdfio_file_t *pdf, size_t num_colors, double gamma, double wx, double wy, double rx, double ry, double gx, double gy, double bx, double by) PDFIO_PUBLIC;
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// PDF content drawing functions...
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extern bool pdfioContentClip(pdfio_stream_t *st, bool even_odd) PDFIO_PUBLIC;
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@ -146,7 +146,7 @@ extern bool pdfioContentTextShowJustified(pdfio_stream_t *st, size_t num_fragme
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// Resource helpers...
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extern pdfio_obj_t *pdfioFileCreateBaseFontObj(pdfio_file_t *pdf, const char *name) PDFIO_PUBLIC;
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extern pdfio_obj_t *pdfioFileCreateFontObj(pdfio_file_t *pdf, const char *filename, bool unicode) PDFIO_PUBLIC;
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extern pdfio_obj_t *pdfioFileCreateICCProfileObj(pdfio_file_t *pdf, const char *filename) PDFIO_PUBLIC;
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extern pdfio_obj_t *pdfioFileCreateICCObj(pdfio_file_t *pdf, const char *filename, size_t num_colors) PDFIO_PUBLIC;
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extern pdfio_obj_t *pdfioFileCreateImageObj(pdfio_file_t *pdf, const char *filename, bool interpolate) PDFIO_PUBLIC;
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// Image object helpers...
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89
testpdfio.c
89
testpdfio.c
@ -725,7 +725,13 @@ write_color_test(pdfio_file_t *pdf, // I - PDF file
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pdfio_dict_t *dict; // Page dictionary
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pdfio_stream_t *st; // Page contents stream
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pdfio_array_t *cs; // Color space array
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pdfio_obj_t *prophoto; // ProPhotoRGB ICC profile object
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fputs("pdfioFileCreateICCObj(ProPhotoRGB): ", stdout);
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if ((prophoto = pdfioFileCreateICCObj(pdf, "testfiles/iso22028-2-romm-rgb.icc", 3)) != NULL)
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puts("PASS");
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else
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return (1);
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fputs("pdfioDictCreate: ", stdout);
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if ((dict = pdfioDictCreate(pdf)) != NULL)
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@ -733,8 +739,8 @@ write_color_test(pdfio_file_t *pdf, // I - PDF file
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else
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return (1);
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fputs("pdfioArrayCreateCalibratedColorFromMatrix(AdobeRGB): ", stdout);
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if ((cs = pdfioArrayCreateCalibratedColorFromMatrix(pdf, 3, pdfioAdobeRGBGamma, pdfioAdobeRGBMatrix, pdfioAdobeRGBWhitePoint)) != NULL)
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fputs("pdfioArrayCreateColorFromMatrix(AdobeRGB): ", stdout);
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if ((cs = pdfioArrayCreateColorFromMatrix(pdf, 3, pdfioAdobeRGBGamma, pdfioAdobeRGBMatrix, pdfioAdobeRGBWhitePoint)) != NULL)
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puts("PASS");
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else
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return (1);
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@ -745,8 +751,8 @@ write_color_test(pdfio_file_t *pdf, // I - PDF file
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else
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return (1);
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fputs("pdfioArrayCreateCalibratedColorFromMatrix(DisplayP3): ", stdout);
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if ((cs = pdfioArrayCreateCalibratedColorFromMatrix(pdf, 3, pdfioDisplayP3Gamma, pdfioDisplayP3Matrix, pdfioDisplayP3WhitePoint)) != NULL)
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fputs("pdfioArrayCreateColorFromMatrix(DisplayP3): ", stdout);
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if ((cs = pdfioArrayCreateColorFromMatrix(pdf, 3, pdfioDisplayP3Gamma, pdfioDisplayP3Matrix, pdfioDisplayP3WhitePoint)) != NULL)
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puts("PASS");
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else
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return (1);
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@ -757,8 +763,20 @@ write_color_test(pdfio_file_t *pdf, // I - PDF file
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else
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return (1);
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fputs("pdfioArrayCreateCalibratedColorFromMatrix(sRGB): ", stdout);
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if ((cs = pdfioArrayCreateCalibratedColorFromMatrix(pdf, 3, pdfioSRGBGamma, pdfioSRGBMatrix, pdfioSRGBWhitePoint)) != NULL)
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fputs("pdfioArrayCreateColorFromICCObj(ProPhotoRGB): ", stdout);
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if ((cs = pdfioArrayCreateColorFromICCObj(pdf, prophoto)) != NULL)
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puts("PASS");
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else
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return (1);
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fputs("pdfioPageDictAddColorSpace(ProPhotoRGB): ", stdout);
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if (pdfioPageDictAddColorSpace(dict, "ProPhotoRGB", cs))
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puts("PASS");
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else
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return (1);
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fputs("pdfioArrayCreateColorFromMatrix(sRGB): ", stdout);
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if ((cs = pdfioArrayCreateColorFromMatrix(pdf, 3, pdfioSRGBGamma, pdfioSRGBMatrix, pdfioSRGBWhitePoint)) != NULL)
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puts("PASS");
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else
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return (1);
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@ -830,8 +848,8 @@ write_color_test(pdfio_file_t *pdf, // I - PDF file
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else
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goto error;
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fputs("pdfioContentTextMoveTo(82, 360): ", stdout);
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if (pdfioContentTextMoveTo(st, 82, 360))
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fputs("pdfioContentTextMoveTo(82, 234): ", stdout);
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if (pdfioContentTextMoveTo(st, 82, 234))
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puts("PASS");
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else
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goto error;
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@ -872,6 +890,18 @@ write_color_test(pdfio_file_t *pdf, // I - PDF file
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else
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goto error;
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fputs("pdfioContentTextShow(\"ProPhotoRGB\"): ", stdout);
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if (pdfioContentTextShow(st, "ProPhotoRGB"))
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puts("PASS");
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else
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goto error;
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fputs("pdfioContentTextMoveTo(-234, 252): ", stdout);
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if (pdfioContentTextMoveTo(st, -234, 252))
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puts("PASS");
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else
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goto error;
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fputs("pdfioContentTextShow(\"DeviceCMYK\"): ", stdout);
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if (pdfioContentTextShow(st, "DeviceCMYK"))
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puts("PASS");
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@ -896,8 +926,8 @@ write_color_test(pdfio_file_t *pdf, // I - PDF file
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else
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goto error;
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fputs("pdfioContentMatrixTranslate(82, 162): ", stdout);
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if (pdfioContentMatrixTranslate(st, 82, 162))
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fputs("pdfioContentMatrixTranslate(82, 36): ", stdout);
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if (pdfioContentMatrixTranslate(st, 82, 36))
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puts("PASS");
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else
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goto error;
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@ -923,8 +953,8 @@ write_color_test(pdfio_file_t *pdf, // I - PDF file
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else
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goto error;
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fputs("pdfioContentMatrixTranslate(316, 162): ", stdout);
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if (pdfioContentMatrixTranslate(st, 316, 162))
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fputs("pdfioContentMatrixTranslate(316, 36): ", stdout);
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if (pdfioContentMatrixTranslate(st, 316, 36))
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puts("PASS");
|
||||
else
|
||||
goto error;
|
||||
@ -950,8 +980,8 @@ write_color_test(pdfio_file_t *pdf, // I - PDF file
|
||||
else
|
||||
goto error;
|
||||
|
||||
fputs("pdfioContentMatrixTranslate(82, 414): ", stdout);
|
||||
if (pdfioContentMatrixTranslate(st, 82, 414))
|
||||
fputs("pdfioContentMatrixTranslate(82, 288): ", stdout);
|
||||
if (pdfioContentMatrixTranslate(st, 82, 288))
|
||||
puts("PASS");
|
||||
else
|
||||
goto error;
|
||||
@ -971,8 +1001,35 @@ write_color_test(pdfio_file_t *pdf, // I - PDF file
|
||||
else
|
||||
goto error;
|
||||
|
||||
fputs("pdfioContentMatrixTranslate(316, 414): ", stdout);
|
||||
if (pdfioContentMatrixTranslate(st, 316, 414))
|
||||
fputs("pdfioContentSetFillColorSpace(ProPhotoRGB): ", stdout);
|
||||
if (pdfioContentSetFillColorSpace(st, "ProPhotoRGB"))
|
||||
puts("PASS");
|
||||
else
|
||||
goto error;
|
||||
|
||||
fputs("pdfioContentMatrixTranslate(316, 288): ", stdout);
|
||||
if (pdfioContentMatrixTranslate(st, 316, 288))
|
||||
puts("PASS");
|
||||
else
|
||||
goto error;
|
||||
|
||||
if (write_color_patch(st, false))
|
||||
goto error;
|
||||
|
||||
fputs("pdfioContentRestore(): ", stdout);
|
||||
if (pdfioContentRestore(st))
|
||||
puts("PASS");
|
||||
else
|
||||
goto error;
|
||||
|
||||
fputs("pdfioContentSave(): ", stdout);
|
||||
if (pdfioContentSave(st))
|
||||
puts("PASS");
|
||||
else
|
||||
goto error;
|
||||
|
||||
fputs("pdfioContentMatrixTranslate(82, 540): ", stdout);
|
||||
if (pdfioContentMatrixTranslate(st, 82, 540))
|
||||
puts("PASS");
|
||||
else
|
||||
goto error;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user