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/*
* 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_FONTS_SHADER_CLIP,
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_FONTS_SHADER_CLIP, "fonts with vertex shader based clipping"},
{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();
GLint GUIShaderGetMatrix();
GLint GUIShaderGetClip();
GLint GUIShaderGetCoordStep();
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];
};
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