ES3: Add some missing unsized formats to the format tables.

These were causing validation errors in the dEQP FBO tests.
See Table 3.2 in the ES3 spec.

BUG=angleproject:1074
TEST=dEQP-GLES3.functional.fbo.completeness.renderable.texture.color0.*

Change-Id: Ifbf9199c54060eb3fc1a1dac7bbd74e19e013c61
Reviewed-on: https://chromium-review.googlesource.com/286773
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>
diff --git a/src/libANGLE/validationES3.cpp b/src/libANGLE/validationES3.cpp
index c3d7c4e..10267c4 100644
--- a/src/libANGLE/validationES3.cpp
+++ b/src/libANGLE/validationES3.cpp
@@ -131,6 +131,15 @@
     InsertES3FormatCombo(&set, GL_ALPHA,              GL_ALPHA,           GL_UNSIGNED_BYTE                 );
     InsertES3FormatCombo(&set, GL_SRGB_ALPHA_EXT,     GL_SRGB_ALPHA_EXT,  GL_UNSIGNED_BYTE                 );
     InsertES3FormatCombo(&set, GL_SRGB_EXT,           GL_SRGB_EXT,        GL_UNSIGNED_BYTE                 );
+    InsertES3FormatCombo(&set, GL_RG,                 GL_RG,              GL_UNSIGNED_BYTE                 );
+    InsertES3FormatCombo(&set, GL_RG,                 GL_RG,              GL_FLOAT                         );
+    InsertES3FormatCombo(&set, GL_RG,                 GL_RG,              GL_HALF_FLOAT                    );
+    InsertES3FormatCombo(&set, GL_RG,                 GL_RG,              GL_HALF_FLOAT_OES                );
+    InsertES3FormatCombo(&set, GL_RED,                GL_RED,             GL_UNSIGNED_BYTE                 );
+    InsertES3FormatCombo(&set, GL_RED,                GL_RED,             GL_FLOAT                         );
+    InsertES3FormatCombo(&set, GL_RED,                GL_RED,             GL_HALF_FLOAT                    );
+    InsertES3FormatCombo(&set, GL_RED,                GL_RED,             GL_HALF_FLOAT_OES                );
+    InsertES3FormatCombo(&set, GL_DEPTH_STENCIL,      GL_DEPTH_STENCIL,   GL_UNSIGNED_INT_24_8             );
 
     // Depth stencil formats
     InsertES3FormatCombo(&set, GL_DEPTH_COMPONENT16,  GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT                );