[mutter] cogl: Add private feature flags for 10 bpc and 16 bpc formats

[Robert Mader <rmader src gnome org>]

commit 2fc8841416e73cb7ee01975f6b82307a6ec35d78
Author: Jonas Ådahl <jadahl gmail com>
Date:   Thu Sep 19 21:32:04 2019 +0200

    cogl: Add private feature flags for 10 bpc and 16 bpc formats
    
    10 bpc are enabled for OpenGL and GLES 2 with the right extension. 16
    bpc (half float) are enabled for OpenGL 3 and higher, and GLES 2 with
    the right extension.
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/804

 cogl/cogl/cogl-private.h                    | 2 ++
 cogl/cogl/driver/gl/gl/cogl-driver-gl.c     | 8 ++++++++
 cogl/cogl/driver/gl/gles/cogl-driver-gles.c | 8 ++++++++
 3 files changed, 18 insertions(+)
---
diff --git a/cogl/cogl/cogl-private.h b/cogl/cogl/cogl-private.h
index 91569b4ec6..769510289d 100644
--- a/cogl/cogl/cogl-private.h
+++ b/cogl/cogl/cogl-private.h
@@ -46,6 +46,8 @@ typedef enum
   COGL_PRIVATE_FEATURE_EXT_PACKED_DEPTH_STENCIL,
   COGL_PRIVATE_FEATURE_OES_PACKED_DEPTH_STENCIL,
   COGL_PRIVATE_FEATURE_TEXTURE_FORMAT_BGRA8888,
+  COGL_PRIVATE_FEATURE_TEXTURE_FORMAT_RGBA1010102,
+  COGL_PRIVATE_FEATURE_TEXTURE_FORMAT_HALF_FLOAT,
   COGL_PRIVATE_FEATURE_UNPACK_SUBIMAGE,
   COGL_PRIVATE_FEATURE_SAMPLER_OBJECTS,
   COGL_PRIVATE_FEATURE_READ_PIXELS_ANY_FORMAT,
diff --git a/cogl/cogl/driver/gl/gl/cogl-driver-gl.c b/cogl/cogl/driver/gl/gl/cogl-driver-gl.c
index 3c2231ebc3..3200053556 100644
--- a/cogl/cogl/driver/gl/gl/cogl-driver-gl.c
+++ b/cogl/cogl/driver/gl/gl/cogl-driver-gl.c
@@ -506,6 +506,14 @@ _cogl_driver_update_features (CoglContext *ctx,
                     COGL_FEATURE_ID_TEXTURE_RG,
                     TRUE);
 
+  COGL_FLAGS_SET (private_features,
+                  COGL_PRIVATE_FEATURE_TEXTURE_FORMAT_RGBA1010102, TRUE);
+
+  if (COGL_CHECK_GL_VERSION (gl_major, gl_minor, 3, 0))
+    COGL_FLAGS_SET (private_features,
+                    COGL_PRIVATE_FEATURE_TEXTURE_FORMAT_HALF_FLOAT,
+                    TRUE);
+
   /* Cache features */
   for (i = 0; i < G_N_ELEMENTS (private_features); i++)
     ctx->private_features[i] |= private_features[i];
diff --git a/cogl/cogl/driver/gl/gles/cogl-driver-gles.c b/cogl/cogl/driver/gl/gles/cogl-driver-gles.c
index 3cb11af699..4c69bf56ec 100644
--- a/cogl/cogl/driver/gl/gles/cogl-driver-gles.c
+++ b/cogl/cogl/driver/gl/gles/cogl-driver-gles.c
@@ -355,6 +355,14 @@ _cogl_driver_update_features (CoglContext *context,
     COGL_FLAGS_SET (private_features,
                     COGL_PRIVATE_FEATURE_TEXTURE_FORMAT_BGRA8888, TRUE);
 
+  if (_cogl_check_extension ("GL_EXT_texture_type_2_10_10_10_REV", gl_extensions))
+    COGL_FLAGS_SET (private_features,
+                    COGL_PRIVATE_FEATURE_TEXTURE_FORMAT_RGBA1010102, TRUE);
+
+  if (_cogl_check_extension ("GL_OES_texture_half_float", gl_extensions))
+    COGL_FLAGS_SET (private_features,
+                    COGL_PRIVATE_FEATURE_TEXTURE_FORMAT_HALF_FLOAT, TRUE);
+
   if (_cogl_check_extension ("GL_EXT_unpack_subimage", gl_extensions))
     COGL_FLAGS_SET (private_features,
                     COGL_PRIVATE_FEATURE_UNPACK_SUBIMAGE, TRUE);