Some improvements and fixes

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 12 insertions, 8 deletions

diff --git a/src/blind-matrix-shear.c b/src/blind-matrix-shear.c
index 0a4310e..e6a7d2d 100644
--- a/src/blind-matrix-shear.c
+++ b/src/blind-matrix-shear.c
@@ -13,9 +13,9 @@ static int in_degrees = 0;
 		pixel_t matrix[9];\
 		pixel_t buf[2];\
 		TYPE conv = in_degrees ? (TYPE)(M_PI / 180.) : 1;\
-		int i;\
+		size_t i;\
 		\
-		for (i = 0; i < 4; i++) {\
+		for (i = 0; i < stream->n_chan; i++) {\
 			matrix[0][i] = 1, matrix[1][i] = 0, matrix[2][i] = 0;\
 			matrix[3][i] = 0, matrix[4][i] = 1, matrix[5][i] = 0;\
 			matrix[6][i] = 0, matrix[7][i] = 0, matrix[8][i] = 1;\
@@ -23,19 +23,23 @@ static int in_degrees = 0;
 		\
 		while (eread_frame(stream, buf)) {\
 			if (by_angle) {\
-				for (i = !per_channel; i < (per_channel ? 4 : 2); i++) {\
+				for (i = !per_channel; i < (per_channel ? stream->n_chan : 2); i++) {\
 					buf[0][i] = tan(buf[0][i] * conv);\
 					buf[1][i] = tan(buf[1][i] * conv);\
 				}\
 			}\
 			if (per_channel) {\
-				for (i = 0; i < 4; i++) {\
+				for (i = 0; i < stream->n_chan; i++) {\
 					matrix[1][i] = buf[0][i];\
 					matrix[3][i] = buf[1][i];\
 				}\
 			} else {\
-				matrix[1][3] = matrix[1][2] = matrix[1][1] = matrix[1][0] = buf[0][1] * buf[0][3];\
-				matrix[3][3] = matrix[3][2] = matrix[3][1] = matrix[3][0] = buf[1][1] * buf[1][3];\
+				buf[0][1] *= buf[0][3];\
+				buf[1][1] *= buf[1][3];\
+				for (i = 0; i < stream->n_chan; i++) {\
+					matrix[1][i] = buf[0][1];\
+					matrix[3][i] = buf[1][1];\
+				}\
 			}\
 			ewriteall(STDOUT_FILENO, matrix, sizeof(matrix), "<stdout>");\
 		}\
@@ -77,9 +81,9 @@ main(int argc, char *argv[])
 	fprint_stream_head(stdout, &stream);
 	efflush(stdout, "<stdout>");
 
-	if (!strcmp(stream.pixfmt, "xyza"))
+	if (stream.encoding == DOUBLE)
 		process = process_lf;
-	else if (!strcmp(stream.pixfmt, "xyza f"))
+	else if (stream.encoding == FLOAT)
 		process = process_f;
 	else
 		eprintf("pixel format %s is not supported, try xyza\n", stream.pixfmt);