lib/gamnit: intro `GamnitRootTexture::pixelated=`

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/lib/gamnit/textures.nit b/lib/gamnit/textures.nit
index ce5546e..415aa90 100644 (file)
--- a/lib/gamnit/textures.nit
+++ b/lib/gamnit/textures.nit
@@ -111,16 +111,23 @@ class GamnitRootTexture
                glBindTexture(gl_TEXTURE_2D, tex)
                glTexImage2D(gl_TEXTURE_2D, 0, format, width, height, 0, format, gl_UNSIGNED_BYTE, pixels)
 
-               # TODO make these settings attributes of the class
-               glTexParameteri(gl_TEXTURE_2D, gl_TEXTURE_MIN_FILTER, gl_NEAREST)
-               glTexParameteri(gl_TEXTURE_2D, gl_TEXTURE_MAG_FILTER, gl_NEAREST)
-               glTexParameteri(gl_TEXTURE_2D, gl_TEXTURE_WRAP_S, gl_REPEAT)
-               glTexParameteri(gl_TEXTURE_2D, gl_TEXTURE_WRAP_T, gl_REPEAT)
-
                glHint(gl_GENERATE_MIPMAP_HINT, gl_NICEST)
                glGenerateMipmap(gl_TEXTURE_2D)
        end
 
+       # Set whether this texture should be pixelated when drawn, otherwise it is interpolated
+       fun pixelated=(pixelated: Bool)
+       do
+               # TODO this service could be made available in `Texture` when using
+               # the kind of texture wrapper of gles v2 or maybe 3
+
+               glBindTexture(gl_TEXTURE_2D, gl_texture)
+
+               var param = if pixelated then gl_NEAREST else gl_LINEAR
+               glTexParameteri(gl_TEXTURE_2D, gl_TEXTURE_MIN_FILTER, param)
+               glTexParameteri(gl_TEXTURE_2D, gl_TEXTURE_MAG_FILTER, param)
+       end
+
        # Has this resource been deleted?
        var deleted = false