[mutter] cogl: Remove unused _cogl_matrix_entry_flush_to_gl_builtins

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit d6bf4800ed7c700b9c7353ac33b6afb2b96beab7
Author: Adam Jackson <ajax redhat com>
Date:   Mon Oct 21 13:07:34 2019 -0400

    cogl: Remove unused _cogl_matrix_entry_flush_to_gl_builtins
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/880

 cogl/cogl/cogl-matrix-stack-private.h |   7 --
 cogl/cogl/cogl-matrix-stack.c         | 121 ----------------------------------
 2 files changed, 128 deletions(-)
---
diff --git a/cogl/cogl/cogl-matrix-stack-private.h b/cogl/cogl/cogl-matrix-stack-private.h
index c442782cf..264394ebe 100644
--- a/cogl/cogl/cogl-matrix-stack-private.h
+++ b/cogl/cogl/cogl-matrix-stack-private.h
@@ -161,13 +161,6 @@ typedef enum
   COGL_MATRIX_TEXTURE
 } CoglMatrixMode;
 
-void
-_cogl_matrix_entry_flush_to_gl_builtins (CoglContext *ctx,
-                                         CoglMatrixEntry *entry,
-                                         CoglMatrixMode mode,
-                                         CoglFramebuffer *framebuffer,
-                                         gboolean disable_flip);
-
 void
 _cogl_matrix_entry_cache_init (CoglMatrixEntryCache *cache);
 
diff --git a/cogl/cogl/cogl-matrix-stack.c b/cogl/cogl/cogl-matrix-stack.c
index fb0330089..2e5150afa 100644
--- a/cogl/cogl/cogl-matrix-stack.c
+++ b/cogl/cogl/cogl-matrix-stack.c
@@ -781,127 +781,6 @@ cogl_matrix_entry_is_identity (CoglMatrixEntry *entry)
   return entry ? entry->op == COGL_MATRIX_OP_LOAD_IDENTITY : FALSE;
 }
 
-static void
-_cogl_matrix_flush_to_gl_builtin (CoglContext *ctx,
-                                  gboolean is_identity,
-                                  CoglMatrix *matrix,
-                                  CoglMatrixMode mode)
-{
-  g_assert (_cogl_has_private_feature (ctx, COGL_PRIVATE_FEATURE_GL_FIXED));
-
-#ifdef HAVE_COGL_GL
-  if (ctx->flushed_matrix_mode != mode)
-    {
-      GLenum gl_mode = 0;
-
-      switch (mode)
-        {
-        case COGL_MATRIX_MODELVIEW:
-          gl_mode = GL_MODELVIEW;
-          break;
-
-        case COGL_MATRIX_PROJECTION:
-          gl_mode = GL_PROJECTION;
-          break;
-
-        case COGL_MATRIX_TEXTURE:
-          gl_mode = GL_TEXTURE;
-          break;
-        }
-
-      GE (ctx, glMatrixMode (gl_mode));
-      ctx->flushed_matrix_mode = mode;
-    }
-
-  if (is_identity)
-    GE (ctx, glLoadIdentity ());
-  else
-    GE (ctx, glLoadMatrixf (cogl_matrix_get_array (matrix)));
-#endif
-}
-
-void
-_cogl_matrix_entry_flush_to_gl_builtins (CoglContext *ctx,
-                                         CoglMatrixEntry *entry,
-                                         CoglMatrixMode mode,
-                                         CoglFramebuffer *framebuffer,
-                                         gboolean disable_flip)
-{
-  g_assert (_cogl_has_private_feature (ctx, COGL_PRIVATE_FEATURE_GL_FIXED));
-
-#ifdef HAVE_COGL_GL
-  {
-    gboolean needs_flip;
-    CoglMatrixEntryCache *cache;
-
-    if (mode == COGL_MATRIX_PROJECTION)
-      {
-        /* Because Cogl defines texture coordinates to have a top left
-         * origin and because offscreen framebuffers may be used for
-         * rendering to textures we always render upside down to
-         * offscreen buffers. Also for some backends we need to render
-         * onscreen buffers upside-down too.
-         */
-        if (disable_flip)
-          needs_flip = FALSE;
-        else
-          needs_flip = cogl_is_offscreen (framebuffer);
-
-        cache = &ctx->builtin_flushed_projection;
-      }
-    else
-      {
-        needs_flip = FALSE;
-
-        if (mode == COGL_MATRIX_MODELVIEW)
-          cache = &ctx->builtin_flushed_modelview;
-        else
-          cache = NULL;
-      }
-
-    /* We don't need to do anything if the state is the same */
-    if (!cache ||
-        _cogl_matrix_entry_cache_maybe_update (cache, entry, needs_flip))
-      {
-        gboolean is_identity;
-        CoglMatrix matrix;
-
-        if (entry->op == COGL_MATRIX_OP_LOAD_IDENTITY)
-          is_identity = TRUE;
-        else
-          {
-            is_identity = FALSE;
-            cogl_matrix_entry_get (entry, &matrix);
-          }
-
-        if (needs_flip)
-          {
-            CoglMatrix flipped_matrix;
-
-            cogl_matrix_multiply (&flipped_matrix,
-                                  &ctx->y_flip_matrix,
-                                  is_identity ?
-                                  &ctx->identity_matrix :
-                                  &matrix);
-
-            _cogl_matrix_flush_to_gl_builtin (ctx,
-                                              /* not identity */
-                                              FALSE,
-                                              &flipped_matrix,
-                                              mode);
-          }
-        else
-          {
-            _cogl_matrix_flush_to_gl_builtin (ctx,
-                                              is_identity,
-                                              &matrix,
-                                              mode);
-          }
-      }
-  }
-#endif
-}
-
 gboolean
 cogl_matrix_entry_equal (CoglMatrixEntry *entry0,
                          CoglMatrixEntry *entry1)