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// Copyright 2017 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "Common/GL/GLInterface/BGL.h"
#include <GLView.h>
#include <Size.h>
#include <Window.h>
#include "Common/Assert.h"
BGLView* GLContextBGL::s_current = nullptr;
GLContextBGL::~GLContextBGL()
{
if (!m_window)
delete m_gl;
}
bool GLContextBGL::Initialize(const WindowSystemInfo& wsi, bool stereo, bool core)
{
m_window = static_cast<BWindow*>(wsi.render_window);
m_gl = new BGLView(m_window ? m_window->Bounds() : BRect(), "GLContextBGL", B_FOLLOW_ALL_SIDES, 0,
BGL_RGB | BGL_DOUBLE | BGL_ALPHA);
if (m_window)
m_window->AddChild(m_gl);
m_opengl_mode = Mode::OpenGL;
m_gl->LockLooper();
BRect size = m_gl->Frame();
m_gl->UnlockLooper();
m_backbuffer_width = size.IntegerWidth();
m_backbuffer_height = size.IntegerHeight();
MakeCurrent();
return true;
}
bool GLContextBGL::IsHeadless() const
{
return m_window == nullptr;
}
bool GLContextBGL::MakeCurrent()
{
if (s_current)
s_current->UnlockGL();
m_gl->LockGL();
s_current = m_gl;
return true;
}
bool GLContextBGL::ClearCurrent()
{
if (!s_current)
return true;
ASSERT(m_gl == s_current);
s_current->UnlockGL();
s_current = nullptr;
return true;
}
void GLContextBGL::Swap()
{
m_gl->SwapBuffers();
}
void GLContextBGL::Update()
{
m_gl->LockLooper();
BRect size = m_gl->Frame();
if (m_backbuffer_width == size.IntegerWidth() && m_backbuffer_height == size.IntegerHeight())
{
m_gl->UnlockLooper();
return;
}
ClearCurrent();
m_gl->FrameResized(size.Width(), size.Height());
MakeCurrent();
m_gl->UnlockLooper();
m_backbuffer_width = size.IntegerWidth();
m_backbuffer_height = size.IntegerHeight();
}
void* GLContextBGL::GetFuncAddress(const std::string& name)
{
return m_gl->GetGLProcAddress(name.c_str());
}
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