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60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
// SPDX-FileCopyrightText: 2019-2023 Connor McLaughlin <stenzek@gmail.com>
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// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
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#pragma once
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#include "context.h"
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#include "../opengl_loader.h"
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#include "common/windows_headers.h"
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#include "glad_wgl.h"
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#include <optional>
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namespace GL {
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class ContextWGL final : public Context
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{
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public:
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ContextWGL(const WindowInfo& wi);
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~ContextWGL() override;
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static std::unique_ptr<Context> Create(const WindowInfo& wi, const Version* versions_to_try,
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size_t num_versions_to_try);
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void* GetProcAddress(const char* name) override;
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bool ChangeSurface(const WindowInfo& new_wi) override;
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void ResizeSurface(u32 new_surface_width = 0, u32 new_surface_height = 0) override;
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bool SwapBuffers() override;
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bool IsCurrent() override;
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bool MakeCurrent() override;
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bool DoneCurrent() override;
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bool SetSwapInterval(s32 interval) override;
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std::unique_ptr<Context> CreateSharedContext(const WindowInfo& wi) override;
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private:
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ALWAYS_INLINE HWND GetHWND() const { return static_cast<HWND>(m_wi.window_handle); }
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HDC GetDCAndSetPixelFormat(HWND hwnd);
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bool Initialize(const Version* versions_to_try, size_t num_versions_to_try);
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bool InitializeDC();
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void ReleaseDC();
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bool CreatePBuffer();
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bool CreateAnyContext(HGLRC share_context, bool make_current);
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bool CreateVersionContext(const Version& version, HGLRC share_context, bool make_current);
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HDC m_dc = {};
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HGLRC m_rc = {};
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// Can't change pixel format once it's set for a RC.
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std::optional<int> m_pixel_format;
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// Dummy window for creating a PBuffer off when we're surfaceless.
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HWND m_dummy_window = {};
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HDC m_dummy_dc = {};
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HPBUFFERARB m_pbuffer = {};
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};
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} // namespace GL
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