From 4a29607def1fa87a4ed5c54abcad2c1a84a78fa6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Branimir=20Karad=C5=BEi=C4=87?= <branimirkaradzic@gmail.com>
Date: Tue, 18 Apr 2017 20:56:50 -0700
Subject: [PATCH] Added image resize.

---
 include/bimg/encode.h   |  6 ++++++
 scripts/bimg.lua        |  1 +
 scripts/bimg_decode.lua |  1 +
 scripts/bimg_encode.lua |  1 +
 src/image_encode.cpp    | 22 ++++++++++++++++++++++
 5 files changed, 31 insertions(+)

diff --git a/include/bimg/encode.h b/include/bimg/encode.h
index 3e4b150..ffa1d72 100644
--- a/include/bimg/encode.h
+++ b/include/bimg/encode.h
@@ -57,6 +57,12 @@ namespace bimg
 		, uint16_t _height
 		);
 
+	///
+	bool imageResizeRgba32fLinear(
+		  ImageContainer* _dst
+		, const ImageContainer* _src
+		);
+
 } // namespace bimg
 
 #endif // BIMG_ENCODE_H_HEADER_GUARD
diff --git a/scripts/bimg.lua b/scripts/bimg.lua
index 8bf6e3a..b1f56d1 100644
--- a/scripts/bimg.lua
+++ b/scripts/bimg.lua
@@ -12,6 +12,7 @@ project "bimg"
 	}
 
 	files {
+		path.join(BIMG_DIR, "include/**"),
 		path.join(BIMG_DIR, "src/image.*"),
 	}
 
diff --git a/scripts/bimg_decode.lua b/scripts/bimg_decode.lua
index 934cbec..743d0ec 100644
--- a/scripts/bimg_decode.lua
+++ b/scripts/bimg_decode.lua
@@ -15,6 +15,7 @@ project "bimg_decode"
 	}
 
 	files {
+		path.join(BIMG_DIR, "include/**"),
 		path.join(BIMG_DIR, "src/image_decode.*"),
 	}
 
diff --git a/scripts/bimg_encode.lua b/scripts/bimg_encode.lua
index 1b853f6..44021dc 100644
--- a/scripts/bimg_encode.lua
+++ b/scripts/bimg_encode.lua
@@ -15,6 +15,7 @@ project "bimg_encode"
 	}
 
 	files {
+		path.join(BIMG_DIR, "include/**"),
 		path.join(BIMG_DIR, "src/image_encode.*"),
 		path.join(BIMG_DIR, "3rdparty/libsquish/**.cpp"),
 		path.join(BIMG_DIR, "3rdparty/libsquish/**.h"),
diff --git a/src/image_encode.cpp b/src/image_encode.cpp
index ed005d2..c0ce14f 100644
--- a/src/image_encode.cpp
+++ b/src/image_encode.cpp
@@ -12,6 +12,13 @@
 #include <pvrtc/PvrTcEncoder.h>
 #include <edtaa3/edtaa3func.h>
 
+BX_PRAGMA_DIAGNOSTIC_PUSH();
+BX_PRAGMA_DIAGNOSTIC_IGNORED_MSVC(4100) // warning C4100: 'alloc_context': unreferenced formal parameter
+BX_PRAGMA_DIAGNOSTIC_IGNORED_MSVC(4702) // warning C4702: unreachable code
+#define STB_IMAGE_RESIZE_IMPLEMENTATION
+#include <stb/stb_image_resize.h>
+BX_PRAGMA_DIAGNOSTIC_POP();
+
 extern "C" {
 #include <iqa.h>
 }
@@ -301,4 +308,19 @@ namespace bimg
 		return result;
 	}
 
+	bool imageResizeRgba32fLinear(ImageContainer* _dst, const ImageContainer* _src)
+	{
+		int result = stbir_resize_float_generic(
+			  (const float*)_src->m_data, _src->m_width, _src->m_height, _src->m_width*16
+			, (      float*)_dst->m_data, _dst->m_width, _dst->m_height, _dst->m_width*16
+			, 4, 1
+			, 0
+			, STBIR_EDGE_CLAMP
+			, STBIR_FILTER_DEFAULT
+			, STBIR_COLORSPACE_LINEAR
+			, NULL
+			);
+		return 1 == result;
+	}
+
 } // namespace bimg