From 7865011806cf994c9d8abed8049359d46f8e1091 Mon Sep 17 00:00:00 2001
From: Eukara <eukara@users.sourceforge.net>
Date: Tue, 22 Jan 2019 00:52:35 +0000
Subject: [PATCH] hlmdl: added "support" for fullbright and chrome materials.
 still requires GLSL additions upstream.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5389 fc73d0e0-1445-4013-8a0c-d673dee63da5
---
 engine/gl/gl_hlmdl.c | 27 +++++++++++++++++++++++----
 engine/gl/model_hl.h | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 55 insertions(+), 4 deletions(-)

diff --git a/engine/gl/gl_hlmdl.c b/engine/gl/gl_hlmdl.c
index b6cefd7ac..fbab891df 100644
--- a/engine/gl/gl_hlmdl.c
+++ b/engine/gl/gl_hlmdl.c
@@ -320,10 +320,29 @@ qboolean QDECL Mod_LoadHLModel (model_t *mod, void *buffer, size_t fsize)
 	for(i = 0; i < texheader->numtextures; i++)
 	{
 		Q_snprintfz(shaders[i].name, sizeof(shaders[i].name), "%s/%s", mod->name, COM_SkipPath(tex[i].name));
-		memset(&shaders[i].defaulttex, 0, sizeof(shaders[i].defaulttex));
-		shaders[i].defaulttex.base = Image_GetTexture(shaders[i].name, "", IF_NOALPHA, (qbyte *) texheader + tex[i].offset, (qbyte *) texheader + tex[i].w * tex[i].h + tex[i].offset, tex[i].w, tex[i].h, TF_8PAL24);
-		shaders[i].w = tex[i].w;
-		shaders[i].h = tex[i].h;
+
+		/* handle the special textures - eukara */
+		if (tex[i].flags) {
+			char *shader;
+			if (tex[i].flags & HLMDLFL_FULLBRIGHT) {
+				if (tex[i].flags & HLMDLFL_CHROME) {
+					shader = HLSHADER_FULLBRIGHTCHROME;
+				} else {
+					shader = HLSHADER_FULLBRIGHT;
+				}
+			} else if (tex[i].flags & HLMDLFL_CHROME) {
+				shader = HLSHADER_CHROME;
+			}
+			shaders[i].shader = R_RegisterShader(shaders[i].name, SUF_NONE, shader);
+			shaders[i].shader->defaulttextures->base = Image_GetTexture(shaders[i].name, "", IF_NOALPHA, (qbyte *) texheader + tex[i].offset, (qbyte *) texheader + tex[i].w * tex[i].h + tex[i].offset, tex[i].w, tex[i].h, TF_8PAL24);
+			shaders[i].shader->width = tex[i].w;
+			shaders[i].shader->height = tex[i].h;
+		} else {
+			memset(&shaders[i].defaulttex, 0, sizeof(shaders[i].defaulttex));
+			shaders[i].defaulttex.base = Image_GetTexture(shaders[i].name, "", IF_NOALPHA, (qbyte *) texheader + tex[i].offset, (qbyte *) texheader + tex[i].w * tex[i].h + tex[i].offset, tex[i].w, tex[i].h, TF_8PAL24);
+			shaders[i].w = tex[i].w;
+			shaders[i].h = tex[i].h;
+		}
 	}
 
 	model->numskinrefs = texheader->skinrefs;
diff --git a/engine/gl/model_hl.h b/engine/gl/model_hl.h
index d498f4d8e..db7583781 100644
--- a/engine/gl/model_hl.h
+++ b/engine/gl/model_hl.h
@@ -14,6 +14,38 @@
 #define HLPOLYHEADER	(('T' << 24) + ('S' << 16) + ('D' << 8) + 'I')	/* little-endian "IDST" */
 #define HLMDLHEADER		"IDST"
 
+/* flags - eukara */
+#define HLMDLFL_FLAT		0x0001
+#define HLMDLFL_CHROME		0x0002
+#define HLMDLFL_FULLBRIGHT	0x0004
+
+#define HLSHADER_FULLBRIGHT \
+		"{\n" \
+			"program defaultskin\n" \
+			"{\n" \
+				"map $diffuse\n" \
+			"}\n" \
+		"}\n"
+
+#define HLSHADER_CHROME \
+		"{\n" \
+			"program defaultskin#CHROME\n" \
+			"{\n" \
+				"map $diffuse\n" \
+				"tcgen environment\n" \
+				"rgbgen lightingdiffuse\n" \
+			"}\n" \
+		"}\n"
+
+#define HLSHADER_FULLBRIGHTCHROME \
+		"{\n" \
+			"program defaultskin#CHROME\n" \
+			"{\n" \
+				"map $diffuse\n" \
+				"tcgen environment\n" \
+			"}\n" \
+		"}\n"
+
 /*
  -----------------------------------------------------------------------------------------------------------------------
     main model header