libcamera: libipa: Remove unused includes

The includes that are not used can be removed.  And two identified
missing includes (directly used but available only through other
includes) are added.

Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

src/ipa/libipa/histogram.h

@@ -7,7 +7,6 @@
 
 #pragma once
 
-#include <assert.h>
 #include <limits.h>
 #include <stdint.h>
 #include <type_traits>

src/ipa/libipa/matrix.h

@@ -7,7 +7,6 @@
 #pragma once
 
 #include <algorithm>
-#include <cmath>
 #include <sstream>
 #include <vector>
 

src/ipa/libipa/matrix_interpolator.cpp

@@ -6,15 +6,8 @@
  */
 #include "matrix_interpolator.h"
 
-#include <algorithm>
-#include <string>
-
 #include <libcamera/base/log.h>
 
-#include "libcamera/internal/yaml_parser.h"
-
-#include "matrix.h"
-
 /**
  * \file matrix_interpolator.h
  * \brief Helper class for interpolating maps of matrices

src/ipa/libipa/matrix_interpolator.h

@@ -7,10 +7,8 @@
 
 #pragma once
 
-#include <algorithm>
 #include <map>
 #include <string>
-#include <tuple>
 
 #include <libcamera/base/log.h>
 

src/ipa/libipa/pwl.cpp

@@ -8,10 +8,8 @@
 
 #include "pwl.h"
 
-#include <assert.h>
 #include <cmath>
 #include <sstream>
-#include <stdexcept>
 
 /**
  * \file pwl.h

src/ipa/libipa/pwl.h

@@ -7,14 +7,11 @@
 #pragma once
 
 #include <algorithm>
-#include <cmath>
 #include <functional>
 #include <string>
 #include <utility>
 #include <vector>
 
-#include "libcamera/internal/yaml_parser.h"
-
 #include "vector.h"
 
 namespace libcamera {

src/ipa/libipa/vector.h

@@ -6,10 +6,10 @@
  */
 #pragma once
 
-#include <algorithm>
 #include <array>
 #include <cmath>
-#include <sstream>
+#include <optional>
+#include <ostream>
 
 #include <libcamera/base/log.h>
 #include <libcamera/base/span.h>