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/*
* Copyright (c) 2021, Sahan Fernando <sahan.h.fernando@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Graphics/VirtIOGPU/Console.h>
#include <Kernel/Graphics/VirtIOGPU/FrameBufferDevice.h>
#include <Kernel/WorkQueue.h>
namespace Kernel::Graphics::VirtIOGPU {
constexpr static AK::Time refresh_interval = AK::Time::from_milliseconds(16);
void DirtyRect::union_rect(size_t x, size_t y, size_t width, size_t height)
{
if (width == 0 || height == 0)
return;
if (m_is_dirty) {
m_x0 = min(x, m_x0);
m_y0 = min(y, m_y0);
m_x1 = max(x + width, m_x1);
m_y1 = max(y + height, m_y1);
} else {
m_is_dirty = true;
m_x0 = x;
m_y0 = y;
m_x1 = x + width;
m_y1 = y + height;
}
}
NonnullRefPtr<Console> Console::initialize(RefPtr<FrameBufferDevice> const& framebuffer_device)
{
return adopt_ref(*new Console(framebuffer_device));
}
Console::Console(RefPtr<FrameBufferDevice> const& framebuffer_device)
: GenericFramebufferConsole(framebuffer_device->width(), framebuffer_device->height(), framebuffer_device->pitch())
, m_framebuffer_device(framebuffer_device)
{
enqueue_refresh_timer();
}
void Console::set_resolution(size_t width, size_t height, size_t)
{
auto did_set_resolution = m_framebuffer_device->try_to_set_resolution(width, height);
VERIFY(did_set_resolution);
}
void Console::flush(size_t x, size_t y, size_t width, size_t height)
{
m_dirty_rect.union_rect(x, y, width, height);
}
void Console::enqueue_refresh_timer()
{
NonnullRefPtr<Timer> refresh_timer = adopt_ref(*new Timer());
refresh_timer->setup(CLOCK_MONOTONIC, refresh_interval, [this]() {
auto rect = m_dirty_rect;
if (rect.is_dirty()) {
Protocol::Rect dirty_rect {
.x = (u32)rect.x(),
.y = (u32)rect.y(),
.width = (u32)rect.width(),
.height = (u32)rect.height(),
};
g_io_work->queue([this, dirty_rect]() {
m_framebuffer_device->flush_dirty_window(dirty_rect, m_framebuffer_device->current_buffer());
m_dirty_rect.clear();
});
}
enqueue_refresh_timer();
});
TimerQueue::the().add_timer(move(refresh_timer));
}
void Console::enable()
{
GenericFramebufferConsole::enable();
m_width = m_framebuffer_device->width();
m_height = m_framebuffer_device->height();
m_pitch = m_framebuffer_device->pitch();
m_dirty_rect.union_rect(0, 0, m_width, m_height);
}
u8* Console::framebuffer_data()
{
return m_framebuffer_device->framebuffer_data();
}
}
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