[client] use cmake to generate renderers/fonts/clipboards headers/code

This is in preperation of cmake options to enable/disable various
functionallity.

client/renderers/EGL/texture.h

@@ -0,0 +1,43 @@
+/*
+Looking Glass - KVM FrameRelay (KVMFR) Client
+Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
+https://looking-glass.hostfission.com
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#pragma once
+
+#include <stdbool.h>
+#include "shader.h"
+
+#include <GL/gl.h>
+
+typedef struct EGL_Texture EGL_Texture;
+
+enum EGL_PixelFormat
+{
+  EGL_PF_RGBA,
+  EGL_PF_BGRA,
+  EGL_PF_RGBA10,
+  EGL_PF_YUV420
+};
+
+bool egl_texture_init(EGL_Texture ** tex);
+void egl_texture_free(EGL_Texture ** tex);
+
+bool egl_texture_setup (EGL_Texture * texture, enum EGL_PixelFormat pixfmt, size_t width, size_t height, size_t stride, bool streaming);
+bool egl_texture_update(EGL_Texture * texture, const uint8_t * buffer);
+void egl_texture_bind          (EGL_Texture * texture);
+int  egl_texture_count         (EGL_Texture * texture);