Moving common GL code out of gpu/.

src/xenia/ui/gl/blitter.h

@@ -0,0 +1,70 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2015 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_UI_GL_BLITTER_H_
+#define XENIA_UI_GL_BLITTER_H_
+
+#include <memory>
+
+#include "third_party/GL/glew.h"
+#include "third_party/GL/wglew.h"
+
+namespace xe {
+namespace ui {
+namespace gl {
+
+struct Rect2D {
+  int32_t x;
+  int32_t y;
+  int32_t width;
+  int32_t height;
+  Rect2D() : x(0), y(0), width(0), height(0) {}
+  Rect2D(int32_t x_, int32_t y_, int32_t width_, int32_t height_)
+      : x(x_), y(y_), width(width_), height(height_) {}
+  int32_t right() const { return x + width; }
+  int32_t bottom() const { return y + height; }
+};
+
+class Blitter {
+ public:
+  Blitter();
+  ~Blitter();
+
+  bool Initialize();
+  void Shutdown();
+
+  void BlitTexture2D(GLuint src_texture, Rect2D src_rect, Rect2D dest_rect,
+                     GLenum filter);
+
+  void CopyColorTexture2D(GLuint src_texture, Rect2D src_rect,
+                          GLuint dest_texture, Rect2D dest_rect, GLenum filter);
+  void CopyDepthTexture(GLuint src_texture, Rect2D src_rect,
+                        GLuint dest_texture, Rect2D dest_rect);
+
+ private:
+  void Draw(GLuint src_texture, Rect2D src_rect, Rect2D dest_rect,
+            GLenum filter);
+
+  GLuint vertex_program_;
+  GLuint color_fragment_program_;
+  GLuint depth_fragment_program_;
+  GLuint color_pipeline_;
+  GLuint depth_pipeline_;
+  GLuint vbo_;
+  GLuint vao_;
+  GLuint nearest_sampler_;
+  GLuint linear_sampler_;
+  GLuint scratch_framebuffer_;
+};
+
+}  // namespace gl
+}  // namespace ui
+}  // namespace xe
+
+#endif  // XENIA_UI_GL_BLITTER_H_