162 lines
4.7 KiB
C++
162 lines
4.7 KiB
C++
/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-23 divingkatae and maximum
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(theweirdo) spatium
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(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/** @file Video Conroller base class implementation. */
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#include <core/timermanager.h>
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#include <devices/common/hwinterrupt.h>
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#include <devices/video/videoctrl.h>
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#include <memaccess.h>
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#include <cinttypes>
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VideoCtrlBase::VideoCtrlBase(int width, int height)
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{
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EventManager::get_instance()->add_window_handler(this, &VideoCtrlBase::handle_events);
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this->create_display_window(width, height);
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}
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VideoCtrlBase::~VideoCtrlBase()
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{
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}
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void VideoCtrlBase::handle_events(const WindowEvent& wnd_event) {
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this->display.handle_events(wnd_event);
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}
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// TODO: consider renaming, since it's not always a window
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void VideoCtrlBase::create_display_window(int width, int height)
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{
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bool is_initialization = this->display.configure(width, height);
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if (is_initialization) {
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this->blank_on = true; // TODO: should be true!
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this->blank_display();
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}
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this->active_width = width;
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this->active_height = height;
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}
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void VideoCtrlBase::blank_display() {
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this->display.blank();
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}
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void VideoCtrlBase::update_screen()
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{
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if (this->blank_on) {
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this->display.blank();
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return;
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}
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int cursor_x = 0;
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int cursor_y = 0;
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if (this->cursor_on) {
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this->get_cursor_position(cursor_x, cursor_y);
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}
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this->display.update(
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this->convert_fb_cb,
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this->cursor_on, cursor_x, cursor_y);
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}
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void VideoCtrlBase::start_refresh_task() {
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uint64_t refresh_interval = static_cast<uint64_t>(1.0f / refresh_rate * NS_PER_SEC + 0.5);
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this->refresh_task_id = TimerManager::get_instance()->add_cyclic_timer(
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refresh_interval,
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[this]() {
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// assert VBL interrupt
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if (this->int_ctrl)
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this->int_ctrl->ack_int(this->irq_id, 1);
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this->update_screen();
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}
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);
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uint64_t vbl_duration = static_cast<uint64_t>(1.0f / ((double)(this->pixel_clock) /
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hori_total / vert_blank) * NS_PER_SEC + 0.5);
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this->vbl_end_task_id = TimerManager::get_instance()->add_cyclic_timer(
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refresh_interval,
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refresh_interval + vbl_duration,
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[this]() {
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// deassert VBL interrupt
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if (this->int_ctrl)
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this->int_ctrl->ack_int(this->irq_id, 0);
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}
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);
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}
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void VideoCtrlBase::stop_refresh_task() {
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if (this->refresh_task_id) {
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TimerManager::get_instance()->cancel_timer(this->refresh_task_id);
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}
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if (this->vbl_end_task_id) {
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TimerManager::get_instance()->cancel_timer(this->vbl_end_task_id);
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}
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}
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void VideoCtrlBase::get_palette_colors(uint8_t index, uint8_t& r, uint8_t& g,
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uint8_t& b, uint8_t& a)
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{
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b = this->palette[index] & 0xFFU;
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g = (this->palette[index] >> 8) & 0xFFU;
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r = (this->palette[index] >> 16) & 0xFFU;
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a = (this->palette[index] >> 24) & 0xFFU;
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}
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void VideoCtrlBase::set_palette_color(uint8_t index, uint8_t r, uint8_t g, uint8_t b, uint8_t a)
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{
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this->palette[index] = (a << 24) | (r << 16) | (g << 8) | b;
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}
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void VideoCtrlBase::setup_hw_cursor(int cursor_width, int cursor_height)
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{
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this->display.setup_hw_cursor(
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[this](uint8_t *dst_buf, int dst_pitch) {
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this->draw_hw_cursor(dst_buf, dst_pitch);
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},
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cursor_width, cursor_height);
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this->cursor_on = true;
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}
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void VideoCtrlBase::convert_frame_1bpp(uint8_t *dst_buf, int dst_pitch)
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{
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// TODO: implement me!
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}
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void VideoCtrlBase::convert_frame_8bpp(uint8_t *dst_buf, int dst_pitch)
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{
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uint8_t *src_buf, *src_row, *dst_row;
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int src_pitch;
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src_buf = this->fb_ptr;
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src_pitch = this->fb_pitch;
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for (int h = 0; h < this->active_height; h++) {
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src_row = &src_buf[h * src_pitch];
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dst_row = &dst_buf[h * dst_pitch];
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for (int x = 0; x < this->active_width; x++) {
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WRITE_DWORD_LE_A(dst_row, this->palette[src_row[x]]);
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dst_row += 4;
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}
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}
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}
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