gl_rmain: temproary disallow DXT on GLES

There seems to exis EXT_texture_compression_s3tc and NV_ extensions.
But I'm not sure if there is any GLES driver supporting them.
Lima says it is supported, but I don't see it in code.
Intel as I remember said s3tc is not supported in GLES.

diff --git a/gl_rmain.c b/gl_rmain.c
index 522bda3eb87f49486b9040cb177bdb4574b72545..3385e52a23eb44e190cc25c39a783f61961a0e8a 100644 (file)
--- a/gl_rmain.c
+++ b/gl_rmain.c
@@ -153,7 +153,11 @@ cvar_t gl_fogstart = {CF_CLIENT, "gl_fogstart", "0", "nehahra fog start distance
 cvar_t gl_fogend = {CF_CLIENT, "gl_fogend","0", "nehahra fog end distance (for Nehahra compatibility only)"};
 cvar_t gl_skyclip = {CF_CLIENT, "gl_skyclip", "4608", "nehahra farclip distance - the real fog end (for Nehahra compatibility only)"};
 
+#ifdef USE_GLES2
+cvar_t r_texture_dds_load = {CF_CLIENT | CF_READONLY, "r_texture_dds_load", "0", "load compressed dds/filename.dds texture instead of filename.tga, if the file exists (not supported in GLES)"};
+#else
 cvar_t r_texture_dds_load = {CF_CLIENT | CF_ARCHIVE, "r_texture_dds_load", "0", "load compressed dds/filename.dds texture instead of filename.tga, if the file exists (requires driver support)"};
+#endif
 cvar_t r_texture_dds_save = {CF_CLIENT | CF_ARCHIVE, "r_texture_dds_save", "0", "save compressed dds/filename.dds texture when filename.tga is loaded, so that it can be loaded instead next time"};
 
 cvar_t r_usedepthtextures = {CF_CLIENT | CF_ARCHIVE, "r_usedepthtextures", "1", "use depth texture instead of depth renderbuffer where possible, uses less video memory but may render slower (or faster) depending on hardware"};