86 lines
2.9 KiB
C
86 lines
2.9 KiB
C
#include "dcp.h"
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#include <libdng.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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bool
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find_calibration_by_model(char *conffile, char *model, const char *sensor)
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{
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// Check config/%model,%sensor.dcp in the current working directory
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sprintf(conffile, "config/%s,%s.dcp", model, sensor);
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if (access(conffile, F_OK) != -1) {
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printf("Found calibration file at %s\n", conffile);
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return true;
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}
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// Check user overridden /etc/megapixels/config/%model,%sensor.dcp
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sprintf(conffile, "%s/megapixels/config/%s,%s.dcp", "/etc", model, sensor);
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if (access(conffile, F_OK) != -1) {
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printf("Found calibration file at %s\n", conffile);
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return true;
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}
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// Check packaged /usr/share/megapixels/config/%model,%sensor.ini
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sprintf(conffile,
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"%s/megapixels/config/%s,%s.dcp",
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"/usr/share",
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model,
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sensor);
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if (access(conffile, F_OK) != -1) {
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printf("Found calibration file at %s\n", conffile);
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return true;
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}
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printf("No calibration found for %s,%s\n", model, sensor);
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return false;
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}
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bool
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find_calibration(char *conffile, const char *sensor)
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{
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char model[512];
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FILE *fp;
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if (access("/proc/device-tree/compatible", F_OK) == -1) {
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return false;
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}
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fp = fopen("/proc/device-tree/compatible", "r");
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char *modelptr = model;
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while (1) {
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int c = fgetc(fp);
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if (c == EOF) {
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*(modelptr) = '\0';
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return find_calibration_by_model(conffile, model, sensor);
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}
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*(modelptr++) = (char)c;
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if (c == 0) {
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bool res =
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find_calibration_by_model(conffile, model, sensor);
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if (res) {
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return true;
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}
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modelptr = model;
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}
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}
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}
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struct MPCameraCalibration
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parse_calibration_file(const char *path)
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{
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struct MPCameraCalibration result;
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libdng_info temp = { 0 };
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libdng_new(&temp);
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libdng_load_calibration_file(&temp, path);
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memcpy(result.color_matrix_1, temp.color_matrix_1, 9 * sizeof(float));
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memcpy(result.color_matrix_2, temp.color_matrix_2, 9 * sizeof(float));
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memcpy(result.forward_matrix_1, temp.forward_matrix_1, 9 * sizeof(float));
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memcpy(result.forward_matrix_2, temp.forward_matrix_2, 9 * sizeof(float));
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result.tone_curve_length = temp.tone_curve_length;
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memcpy(result.tone_curve,
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temp.tone_curve,
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temp.tone_curve_length * sizeof(float));
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return result;
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}
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