changed TEXF_CLAMP to use GL_CLAMP_TO_EDGE (GL_EXT_texture_edge_clamp or GL_SGIS_text...

[xonotic/darkplaces.git] / vid_shared.c

diff --git a/vid_shared.c b/vid_shared.c
index 1bfff4511b086854135841e8035bd85e20f3b6d5..2260f240e2db5ad224b0092b13bc3b5a77679d5f 100644 (file)
--- a/vid_shared.c
+++ b/vid_shared.c
@@ -24,6 +24,8 @@ int gl_texture3d = false;
 int gl_texturecubemap = false;
 // GL_ARB_texture_env_dot3
 int gl_dot3arb = false;
+// GL_SGIS_texture_edge_clamp
+int gl_support_clamptoedge = false;
 
 // LordHavoc: if window is hidden, don't update screen
 int vid_hidden = true;
@@ -353,6 +355,7 @@ void VID_CheckExtensions(void)
        gl_dot3arb = false;
        gl_supportslockarrays = false;
        gl_textureunits = 1;
+       gl_support_clamptoedge = false;
 
        if (!GL_CheckExtension("OpenGL 1.1.0", opengl110funcs, NULL, false))
                Sys_Error("OpenGL 1.1.0 functions not found\n");
@@ -379,6 +382,7 @@ void VID_CheckExtensions(void)
        gl_texture3d = GL_CheckExtension("GL_EXT_texture3D", texture3dextfuncs, "-notexture3d", false);
        gl_texturecubemap = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false);
        gl_supportslockarrays = GL_CheckExtension("GL_EXT_compiled_vertex_array", compiledvertexarrayfuncs, "-nocva", false);
+       gl_support_clamptoedge = GL_CheckExtension("GL_EXT_texture_edge_clamp", NULL, "-noedgeclamp", false) || GL_CheckExtension("GL_SGIS_texture_edge_clamp", NULL, "-noedgeclamp", false);
 
        // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
        if (qglDrawRangeElements == NULL)