Set some initial calibration matrices if no DCP file is found, used for AWB

src/process_pipeline.c

@@ -5,6 +5,7 @@
 #include "main.h"
 #include "pipeline.h"
 #include "state.h"
+#include "matrix.h"
 #include "zbar_pipeline.h"
 #include <assert.h>
 #include <gtk/gtk.h>
@@ -1317,22 +1318,27 @@ update_state(MPPipeline *pipeline, const mp_state_proc *new_state)
 
         state_proc.flash_enabled = new_state->flash_enabled;
 
-        if (output_changed) {
-                state_proc.camera_rotation = mod(
-                        state_proc.mode->rotation - state_proc.device_rotation, 360);
-
-                on_output_changed(format_changed);
-        }
-
         if (camera_changed) {
                 char cf[PATH_MAX];
                 if (find_calibration(cf, state_proc.camera->name)) {
                         state_proc.calibration = parse_calibration_file(cf);
                 } else {
-                        printf("No calibration for %s\n", state_proc.camera->name);
+                        fprintf(stderr, "No calibration for %s\n", state_proc.camera->name);
+                        memcpy(state_proc.calibration.forward_matrix_1, sRGB_to_XYZD65, 9 * sizeof(float));
+                        // The below is the same as calling libmegapixels' libmegapixels_aaa_init, but as we call
+                        // libmegapixels_aaa_set_matrix, we need it to be in the calibration
+                        memcpy(state_proc.calibration.color_matrix_1, IDENTITY, 9 * sizeof(float));
+                        memcpy(state_proc.calibration.color_matrix_2, IDENTITY, 9 * sizeof(float));
                 }
         }
 
+        if (output_changed) {
+                state_proc.camera_rotation = mod(
+                        state_proc.mode->rotation - state_proc.device_rotation, 360);
+
+                on_output_changed(format_changed);
+        }
+
         mp_state_main new_main = {
                 .camera = pr_camera,
                 .has_auto_focus_continuous = false,