1 files changed, 143 insertions, 0 deletions
diff --git a/xbmc/rendering/gles/RenderSystemGLES.h b/xbmc/rendering/gles/RenderSystemGLES.h
new file mode 100644
index 0000000..e0cd72b
--- /dev/null
+++ b/xbmc/rendering/gles/RenderSystemGLES.h
@@ -0,0 +1,143 @@
+/*
+ *  Copyright (C) 2005-2018 Team Kodi
+ *  This file is part of Kodi - https://kodi.tv
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ *  See LICENSES/README.md for more information.
+ */
+
+#pragma once
+
+#include "GLESShader.h"
+#include "rendering/RenderSystem.h"
+#include "utils/ColorUtils.h"
+#include "utils/Map.h"
+
+#include <map>
+
+#include <fmt/format.h>
+
+#include "system_gl.h"
+
+enum class ShaderMethodGLES
+{
+  SM_DEFAULT,
+  SM_TEXTURE,
+  SM_MULTI,
+  SM_FONTS,
+  SM_TEXTURE_NOBLEND,
+  SM_MULTI_BLENDCOLOR,
+  SM_TEXTURE_RGBA,
+  SM_TEXTURE_RGBA_OES,
+  SM_TEXTURE_RGBA_BLENDCOLOR,
+  SM_TEXTURE_RGBA_BOB,
+  SM_TEXTURE_RGBA_BOB_OES,
+  SM_TEXTURE_NOALPHA,
+  SM_MAX
+};
+
+template<>
+struct fmt::formatter<ShaderMethodGLES> : fmt::formatter<std::string_view>
+{
+  template<typename FormatContext>
+  constexpr auto format(const ShaderMethodGLES& shaderMethod, FormatContext& ctx)
+  {
+    const auto it = ShaderMethodGLESMap.find(shaderMethod);
+    if (it == ShaderMethodGLESMap.cend())
+      throw std::range_error("no string mapping found for shader method");
+
+    return fmt::formatter<string_view>::format(it->second, ctx);
+  }
+
+private:
+  static constexpr auto ShaderMethodGLESMap = make_map<ShaderMethodGLES, std::string_view>({
+      {ShaderMethodGLES::SM_DEFAULT, "default"},
+      {ShaderMethodGLES::SM_TEXTURE, "texture"},
+      {ShaderMethodGLES::SM_MULTI, "multi"},
+      {ShaderMethodGLES::SM_FONTS, "fonts"},
+      {ShaderMethodGLES::SM_TEXTURE_NOBLEND, "texture no blending"},
+      {ShaderMethodGLES::SM_MULTI_BLENDCOLOR, "multi blend colour"},
+      {ShaderMethodGLES::SM_TEXTURE_RGBA, "texure rgba"},
+      {ShaderMethodGLES::SM_TEXTURE_RGBA_OES, "texture rgba OES"},
+      {ShaderMethodGLES::SM_TEXTURE_RGBA_BLENDCOLOR, "texture rgba blend colour"},
+      {ShaderMethodGLES::SM_TEXTURE_RGBA_BOB, "texture rgba bob"},
+      {ShaderMethodGLES::SM_TEXTURE_RGBA_BOB_OES, "texture rgba bob OES"},
+      {ShaderMethodGLES::SM_TEXTURE_NOALPHA, "texture no alpha"},
+  });
+
+  static_assert(static_cast<size_t>(ShaderMethodGLES::SM_MAX) == ShaderMethodGLESMap.size(),
+                "ShaderMethodGLESMap doesn't match the size of ShaderMethodGLES, did you forget to "
+                "add/remove a mapping?");
+};
+
+class CRenderSystemGLES : public CRenderSystemBase
+{
+public:
+  CRenderSystemGLES();
+  ~CRenderSystemGLES() override = default;
+
+  bool InitRenderSystem() override;
+  bool DestroyRenderSystem() override;
+  bool ResetRenderSystem(int width, int height) override;
+
+  bool BeginRender() override;
+  bool EndRender() override;
+  void PresentRender(bool rendered, bool videoLayer) override;
+  bool ClearBuffers(UTILS::COLOR::Color color) override;
+  bool IsExtSupported(const char* extension) const override;
+
+  void SetVSync(bool vsync);
+  void ResetVSync() { m_bVsyncInit = false; }
+
+  void SetViewPort(const CRect& viewPort) override;
+  void GetViewPort(CRect& viewPort) override;
+
+  bool ScissorsCanEffectClipping() override;
+  CRect ClipRectToScissorRect(const CRect &rect) override;
+  void SetScissors(const CRect& rect) override;
+  void ResetScissors() override;
+
+  void CaptureStateBlock() override;
+  void ApplyStateBlock() override;
+
+  void SetCameraPosition(const CPoint &camera, int screenWidth, int screenHeight, float stereoFactor = 0.0f) override;
+
+  bool SupportsStereo(RENDER_STEREO_MODE mode) const override;
+
+  void Project(float &x, float &y, float &z) override;
+
+  std::string GetShaderPath(const std::string &filename) override { return "GLES/2.0/"; }
+
+  void InitialiseShaders();
+  void ReleaseShaders();
+  void EnableGUIShader(ShaderMethodGLES method);
+  void DisableGUIShader();
+
+  GLint GUIShaderGetPos();
+  GLint GUIShaderGetCol();
+  GLint GUIShaderGetCoord0();
+  GLint GUIShaderGetCoord1();
+  GLint GUIShaderGetUniCol();
+  GLint GUIShaderGetCoord0Matrix();
+  GLint GUIShaderGetField();
+  GLint GUIShaderGetStep();
+  GLint GUIShaderGetContrast();
+  GLint GUIShaderGetBrightness();
+  GLint GUIShaderGetModel();
+
+protected:
+  virtual void SetVSyncImpl(bool enable) = 0;
+  virtual void PresentRenderImpl(bool rendered) = 0;
+  void CalculateMaxTexturesize();
+
+  bool m_bVsyncInit{false};
+  int m_width;
+  int m_height;
+
+  std::string m_RenderExtensions;
+
+  std::map<ShaderMethodGLES, std::unique_ptr<CGLESShader>> m_pShader;
+  ShaderMethodGLES m_method = ShaderMethodGLES::SM_DEFAULT;
+
+  GLint      m_viewPort[4];
+};