mirror of https://github.com/OpenTTD/OpenTTD.git
60 lines
2.2 KiB
C++
60 lines
2.2 KiB
C++
/*
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* This file is part of OpenTTD.
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* OpenTTD 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, version 2.
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* OpenTTD 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.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file sdl2_opengl_v.h OpenGL backend of the SDL2 video driver. */
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#include "sdl2_v.h"
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/** The OpenGL video driver for windows. */
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class VideoDriver_SDL_OpenGL : public VideoDriver_SDL_Base {
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public:
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VideoDriver_SDL_OpenGL() : VideoDriver_SDL_Base(true), gl_context(nullptr), anim_buffer(nullptr) {}
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std::optional<std::string_view> Start(const StringList ¶m) override;
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void Stop() override;
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bool HasEfficient8Bpp() const override { return true; }
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bool UseSystemCursor() override { return true; }
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void ClearSystemSprites() override;
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void PopulateSystemSprites() override;
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bool HasAnimBuffer() override { return true; }
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uint8_t *GetAnimBuffer() override { return this->anim_buffer; }
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void ToggleVsync(bool vsync) override;
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std::string_view GetName() const override { return "sdl-opengl"; }
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protected:
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bool AllocateBackingStore(int w, int h, bool force = false) override;
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void *GetVideoPointer() override;
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void ReleaseVideoPointer() override;
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void Paint() override;
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bool CreateMainWindow(uint w, uint h, uint flags) override;
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private:
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void *gl_context; ///< OpenGL context.
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uint8_t *anim_buffer; ///< Animation buffer from OpenGL back-end.
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std::optional<std::string_view> AllocateContext();
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void DestroyContext();
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};
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/** The factory for SDL' OpenGL video driver. */
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class FVideoDriver_SDL_OpenGL : public DriverFactoryBase {
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public:
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FVideoDriver_SDL_OpenGL() : DriverFactoryBase(Driver::DT_VIDEO, 8, "sdl-opengl", "SDL OpenGL Video Driver") {}
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/* virtual */ Driver *CreateInstance() const override { return new VideoDriver_SDL_OpenGL(); }
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protected:
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bool UsesHardwareAcceleration() const override { return true; }
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};
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