115 lines
4.1 KiB
C++
115 lines
4.1 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 definitions. */
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#ifndef VIDEO_CTRL_H
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#define VIDEO_CTRL_H
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#include <devices/common/hwinterrupt.h>
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#include <devices/video/display.h>
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#include <cinttypes>
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#include <functional>
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class WindowEvent;
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class VideoCtrlBase {
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public:
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VideoCtrlBase(int width = 640, int height = 480);
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~VideoCtrlBase();
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void handle_events(const WindowEvent& wnd_event);
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void create_display_window(int width, int height);
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void blank_display();
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void update_screen(void);
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void start_refresh_task();
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void stop_refresh_task();
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void get_palette_color(uint8_t index, uint8_t& r, uint8_t& g, uint8_t& b,
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uint8_t& a);
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void set_palette_color(uint8_t index, uint8_t r, uint8_t g, uint8_t b, uint8_t a);
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// HW cursor support
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void setup_hw_cursor(int cursor_width=64, int cur_height=64);
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virtual void draw_hw_cursor(uint8_t *dst_buf, int dst_pitch) {};
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virtual void get_cursor_position(int& x, int& y) { x = 0; y = 0; };
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// converters for various framebuffer pixel depths
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virtual void convert_frame_1bpp_indexed(uint8_t *dst_buf, int dst_pitch);
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virtual void convert_frame_2bpp_indexed(uint8_t *dst_buf, int dst_pitch);
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virtual void convert_frame_4bpp_indexed(uint8_t *dst_buf, int dst_pitch);
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virtual void convert_frame_8bpp_indexed(uint8_t *dst_buf, int dst_pitch);
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#if 0
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virtual void convert_frame_8bpp_32LE_indexed(uint8_t *dst_buf, int dst_pitch);
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#endif
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virtual void convert_frame_8bpp(uint8_t *dst_buf, int dst_pitch);
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virtual void convert_frame_15bpp(uint8_t *dst_buf, int dst_pitch);
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virtual void convert_frame_15bpp_BE(uint8_t *dst_buf, int dst_pitch);
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virtual void convert_frame_16bpp(uint8_t *dst_buf, int dst_pitch);
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virtual void convert_frame_24bpp(uint8_t *dst_buf, int dst_pitch);
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virtual void convert_frame_32bpp(uint8_t *dst_buf, int dst_pitch);
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virtual void convert_frame_32bpp_BE(uint8_t *dst_buf, int dst_pitch);
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protected:
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// CRT controller parameters
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bool crtc_on = false;
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bool blank_on = true;
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bool cursor_on = false;
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bool cursor_dirty = false;
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int active_width; // width of the visible display area
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int active_height; // height of the visible display area
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int hori_total = 0;
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int vert_total = 0;
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int hori_blank = 0;
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int vert_blank = 0;
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int pixel_depth;
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int pixel_format;
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float pixel_clock;
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float refresh_rate;
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bool draw_fb = true;
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uint32_t palette[256] = {0}; // internal DAC palette in RGBA format
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// Framebuffer parameters
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uint8_t* fb_ptr = nullptr;
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int fb_pitch = 0;
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uint32_t refresh_task_id = 0;
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uint32_t vbl_end_task_id = 0;
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// interrupt suff
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InterruptCtrl* int_ctrl = nullptr;
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uint32_t irq_id = 0;
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std::function<void(uint8_t irq_line_state)> vbl_cb = [this](uint8_t irq_line_state) {
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if (this->int_ctrl)
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this->int_ctrl->ack_int(this->irq_id, irq_line_state);
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};
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std::function<void(uint8_t *dst_buf, int dst_pitch)> convert_fb_cb = nullptr;
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std::function<void(uint8_t *dst_buf, int dst_pitch)> cursor_ovl_cb = nullptr;
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private:
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Display display;
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};
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#endif // VIDEO_CTRL_H
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