From 1483f2b87be32a60ef7e0038f3a893624a3c6639 Mon Sep 17 00:00:00 2001
From: dolcetriade <vcelestialragev@gmail.com>
Date: Thu, 5 Jul 2018 12:07:31 -0700
Subject: [PATCH] q3map2: Add crn loading support to q3map2

---
 tools/quake3/CMakeLists.txt  |  3 +++
 tools/quake3/q3map2/image.c  | 32 +++++++++++++++++++++++++++++++-
 tools/quake3/q3map2/q3map2.h |  1 +
 3 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/tools/quake3/CMakeLists.txt b/tools/quake3/CMakeLists.txt
index 1a852983..eb3060ec 100644
--- a/tools/quake3/CMakeLists.txt
+++ b/tools/quake3/CMakeLists.txt
@@ -31,6 +31,8 @@ include_directories(${ZLIB_INCLUDE_DIRS})
 find_package(Minizip REQUIRED)
 include_directories(${Minizip_INCLUDE_DIRS})
 
+include_directories(${CMAKE_SOURCE_DIR}/libs/crunch)
+
 set(q3map2_games
         q3map2/game_darkplaces.h
         q3map2/game_dq.h
@@ -127,6 +129,7 @@ target_link_libraries(q3map2
         ${Minizip_LIBRARIES}
         ${ZLIB_LIBRARIES}
         ddslib
+        crnlib
         etclib
         filematch
         l_net
diff --git a/tools/quake3/q3map2/image.c b/tools/quake3/q3map2/image.c
index 6ae88ca7..4bf1ec0e 100644
--- a/tools/quake3/q3map2/image.c
+++ b/tools/quake3/q3map2/image.c
@@ -86,6 +86,26 @@ static void LoadDDSBuffer( byte *buffer, int size, byte **pixels, int *width, in
 	DDSDecompress( (ddsBuffer_t*) buffer, *pixels );
 }
 
+/*
+    LoadCRNBuffer
+    loads a crn image into a valid rgba image
+*/
+void LoadCRNBuffer( byte *buffer, int size, byte **pixels, int *width, int *height) {
+	/* dummy check */
+	if ( buffer == NULL || size <= 0 || pixels == NULL || width == NULL || height == NULL ) {
+		return;
+	}
+	if ( !GetCRNImageSize( buffer, size, width, height ) ) {
+		Sys_FPrintf( SYS_WRN, "WARNING: Error getting crn imag dimensions.\n");;
+		return;
+	}
+	int outBufSize = *width * *height * 4;
+	*pixels = safe_malloc( outBufSize );
+	if ( !ConvertCRNtoRGBA( buffer, size, outBufSize, *pixels) ) {
+		Sys_FPrintf( SYS_WRN, "WARNING: Error decoding crn image.\n", 0 );
+		return;
+	}
+}
 
 
 /*
@@ -437,6 +457,16 @@ image_t *ImageLoad( const char *filename ){
 					if ( size > 0 ) {
 						LoadKTXBufferFirstImage( buffer, size, &image->pixels, &image->width, &image->height );
 					}
+					else
+					{
+						/* attempt to load crn */
+						StripExtension( name );
+						strcat( name, ".crn" );
+						size = vfsLoadFile( ( const char* ) name, ( void** ) &buffer, 0 );
+						if ( size > 0 ) {
+							LoadCRNBuffer( buffer, size, &image->pixels, &image->width, &image->height );
+						}
+					}
 				}
 			}
 		}
@@ -473,7 +503,7 @@ image_t *ImageLoad( const char *filename ){
 				if (pixels) {
 					// On error, LoadJPGBuff might store a pointer to the error message in pixels
 					Sys_FPrintf( SYS_WRN, "WARNING: LoadJPGBuff %s %s\n", name, (unsigned char*) pixels );
-				}				
+				}
 			} else {
 				if ( width == image->width && height == image->height ) {
 					int i;
diff --git a/tools/quake3/q3map2/q3map2.h b/tools/quake3/q3map2/q3map2.h
index 46fec5ee..698e57c1 100644
--- a/tools/quake3/q3map2/q3map2.h
+++ b/tools/quake3/q3map2/q3map2.h
@@ -70,6 +70,7 @@
 #include "mathlib.h"
 #include "md5lib.h"
 #include "ddslib.h"
+#include "crn_rgba.h"
 
 #include "picomodel.h"
 
-- 
2.39.2