TYPE3

[iec.git] / src / type3_AndroidCloud / anbox-master / src / anbox / graphics / program_family.h

diff --git a/src/type3_AndroidCloud/anbox-master/src/anbox/graphics/program_family.h b/src/type3_AndroidCloud/anbox-master/src/anbox/graphics/program_family.h
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+/*
+ * Copyright © 2015 Canonical Ltd.
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Authored by: Daniel van Vugt <daniel.van.vugt@canonical.com>
+ */
+
+#ifndef ANBOX_GRAPHICS_PROGRAM_FAMILY_H_
+#define ANBOX_GRAPHICS_PROGRAM_FAMILY_H_
+
+#include <map>
+#include <unordered_map>
+#include <utility>
+
+#include <GLES2/gl2.h>
+
+namespace anbox {
+namespace graphics {
+/**
+ * ProgramFamily represents a set of GLSL programs that are closely
+ * related. Programs which point to the same shader source strings will be
+ * made to share the same compiled shader objects.
+ *   A secondary intention is that this class may be extended to allow the
+ * different programs within the family to share common patterns of uniform
+ * usage too.
+ */
+class ProgramFamily {
+ public:
+  ProgramFamily() = default;
+  ProgramFamily(ProgramFamily const&) = delete;
+  ProgramFamily& operator=(ProgramFamily const&) = delete;
+  ~ProgramFamily() noexcept;
+
+  GLuint add_program(const GLchar* const static_vshader_src,
+                     const GLchar* const static_fshader_src);
+
+ private:
+  struct Shader {
+    GLuint id = 0;
+    void init(GLenum type, const GLchar* src);
+  };
+  typedef std::unordered_map<const GLchar*, Shader> ShaderMap;
+  ShaderMap vshader, fshader;
+
+  typedef std::pair<GLuint, GLuint> ShaderPair;
+  struct Program {
+    GLuint id = 0;
+  };
+  std::map<ShaderPair, Program> program;
+};
+}  // namespace graphics
+}  // namespace anbox
+
+#endif  // MIR_RENDERER_GL_PROGRAM_FAMILY_H_