From 161f703b903b8a9c954de61a53a5680cefe8b53b Mon Sep 17 00:00:00 2001
From: Denis Pauk <pauk.denis@gmail.com>
Date: Sun, 30 Jun 2024 17:05:33 +0300
Subject: [PATCH] renders: scale pcx before use

---
 src/client/refresh/files/stb.c  | 30 +++++++++++++++++++++++++-----
 src/client/refresh/ref_shared.h |  2 +-
 2 files changed, 26 insertions(+), 6 deletions(-)

diff --git a/src/client/refresh/files/stb.c b/src/client/refresh/files/stb.c
index 4d10ff77..552b72d7 100644
--- a/src/client/refresh/files/stb.c
+++ b/src/client/refresh/files/stb.c
@@ -488,7 +488,7 @@ LoadHiColorImage(const char *name, const char* namewe, const char *ext,
 
 static struct image_s *
 LoadImage_Ext(const char *name, const char* namewe, const char *ext, imagetype_t type,
-	qboolean r_retexturing, loadimage_t load_image)
+	int r_retexturing, loadimage_t load_image)
 {
 	struct image_s	*image = NULL;
 
@@ -502,9 +502,9 @@ LoadImage_Ext(const char *name, const char* namewe, const char *ext, imagetype_t
 	{
 		if (!strcmp(ext, "pcx"))
 		{
+			int width = 0, height = 0, realwidth = 0, realheight = 0;
 			byte	*pic = NULL;
 			byte	*palette = NULL;
-			int width = 0, height = 0;
 
 			LoadPCX (namewe, &pic, &palette, &width, &height);
 			if (!pic)
@@ -512,6 +512,25 @@ LoadImage_Ext(const char *name, const char* namewe, const char *ext, imagetype_t
 				return NULL;
 			}
 
+			realheight = height;
+			realwidth = width;
+
+			if (r_retexturing >= 2)
+			{
+				byte *image_scale = NULL;
+
+				/* scale image paletted images */
+				image_scale = malloc(width * height * 4);
+				scale2x(pic, image_scale, width, height);
+
+				/* replace pic with scale */
+				free(pic);
+				pic = image_scale;
+
+				width *= 2;
+				height *= 2;
+			}
+
 			if (r_retexturing && palette)
 			{
 				byte *image_buffer = NULL;
@@ -519,6 +538,7 @@ LoadImage_Ext(const char *name, const char* namewe, const char *ext, imagetype_t
 
 				size = width * height;
 
+				/* convert to full color */
 				image_buffer = malloc (size * 4);
 				for(i = 0; i < size; i++)
 				{
@@ -530,8 +550,8 @@ LoadImage_Ext(const char *name, const char* namewe, const char *ext, imagetype_t
 				}
 
 				image = load_image(name, image_buffer,
-					width, width,
-					height, height,
+					width, realwidth,
+					height, realheight,
 					size, type, 32);
 				free (image_buffer);
 			}
@@ -590,7 +610,7 @@ LoadImage_Ext(const char *name, const char* namewe, const char *ext, imagetype_t
 
 struct image_s *
 R_LoadImage(const char *name, const char* namewe, const char *ext, imagetype_t type,
-	qboolean r_retexturing, loadimage_t load_image)
+	int r_retexturing, loadimage_t load_image)
 {
 	struct image_s	*image = NULL;
 
diff --git a/src/client/refresh/ref_shared.h b/src/client/refresh/ref_shared.h
index 6c0f9950..2d147d97 100644
--- a/src/client/refresh/ref_shared.h
+++ b/src/client/refresh/ref_shared.h
@@ -339,7 +339,7 @@ extern struct image_s *GetSkyImage(const char *skyname, const char* surfname,
 extern struct image_s *GetTexImage(const char *name, findimage_t find_image);
 extern struct image_s *R_FindPic(const char *name, findimage_t find_image);
 extern struct image_s *R_LoadImage(const char *name, const char* namewe, const char *ext,
-	imagetype_t type, qboolean r_retexturing, loadimage_t load_image);
+	imagetype_t type, int r_retexturing, loadimage_t load_image);
 extern void Mod_LoadQBSPMarksurfaces(const char *name, msurface_t ***marksurfaces,
 	unsigned int *nummarksurfaces, msurface_t *surfaces, int numsurfaces,
 	const byte *mod_base, const lump_t *lMod_LoadQBSPMarksurfaces);