152 lines
4.1 KiB
C++
152 lines
4.1 KiB
C++
/*
|
|
DingusPPC - The Experimental PowerPC Macintosh emulator
|
|
Copyright (C) 2018-24 divingkatae and maximum
|
|
(theweirdo) spatium
|
|
|
|
(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/** @file TNT on-board NTSC/PAL video output definitions. */
|
|
|
|
#ifndef SIXTY6_VIDEO_H
|
|
#define SIXTY6_VIDEO_H
|
|
|
|
#include <devices/ioctrl/macio.h>
|
|
#include <devices/video/videoctrl.h>
|
|
|
|
#include <cinttypes>
|
|
#include <memory>
|
|
|
|
namespace Sixty6BaseReg {
|
|
|
|
enum Sixty6BaseReg : uint32_t {
|
|
CLUT_DATA = 0x00, // Open Firmware chaos reads PRSNT_BITS from here!?
|
|
CLUT_ADDR = 0x01,
|
|
|
|
CONTROL_DATA = 0x02,
|
|
CONTROL_ADDR = 0x03,
|
|
};
|
|
|
|
};
|
|
|
|
namespace Sixty6Reg {
|
|
|
|
enum Sixty6Reg : uint32_t {
|
|
// registers 0x00..0x7f are writable; unused in sixty6; Hardware Cursor for ninety9
|
|
REG_V1O_L = 0x80, // 8 bits
|
|
REG_V1O_H = 0x81, // 2 bits
|
|
|
|
REG_V2O_L = 0x82, // 8 bits
|
|
REG_V2O_H = 0x83, // 2 bits
|
|
|
|
REG_V1E_L = 0x84, // 8 bits
|
|
REG_V1E_H = 0x85, // 2 bits
|
|
|
|
REG_V2E_L = 0x86, // 8 bits
|
|
REG_V2E_H = 0x87, // 2 bits
|
|
|
|
REG_H1_L = 0x88, // 8 bits
|
|
REG_H1_H = 0x89, // 2 bits
|
|
|
|
REG_H2_L = 0x8a, // 8 bits
|
|
REG_H2_H = 0x8b, // 2 bits
|
|
|
|
BASE_ADDR_L = 0x8c, // 8 bits
|
|
BASE_ADDR_M = 0x8d, // 8 bits
|
|
BASE_ADDR_H = 0x8e, // 2 bits
|
|
|
|
PITCH_L = 0x8f, // 8 bits
|
|
PITCH_H = 0x90, // 3 bits
|
|
|
|
CURSOR_X_L = 0x91, // 8 bits
|
|
CURSOR_X_H = 0x92, // 2 bits
|
|
|
|
CURSOR_Y_L = 0x93, // 8 bits
|
|
CURSOR_Y_H = 0x94, // 2 bits
|
|
|
|
INT_COUNT_L = 0x95, // 8 bits
|
|
INT_COUNT_H = 0x96, // 2 bits
|
|
|
|
CONTROL_1 = 0x97, // 8 bits // 0x00, 0x02, 0x40, 0x48, 0x49, 0x79
|
|
// 0x01: ?
|
|
// 0x02: hardware cursor enable (read-only as 0 for sixty6)
|
|
// 0x04: zoom
|
|
// 0x08: ?
|
|
// 0x30: pixel depth: 0 = 8-bit indexed, 2 = 16 bit, 3 = 32 bit
|
|
// 0x40: interrupt enable
|
|
// 0x80: interrupt
|
|
CONTROL_2 = 0x98, // 8 bits // 0x02, 0x03
|
|
// 0x01: ?
|
|
// 0x02: ?
|
|
// registers 0x99..0xff are read only and read from registers 0x19..0x7F.
|
|
};
|
|
|
|
};
|
|
|
|
class Saa7187VideoEncoder;
|
|
class ControlVideo;
|
|
|
|
class Sixty6Video: public VideoCtrlBase, public IobusDevice, public HWComponent {
|
|
|
|
public:
|
|
Sixty6Video();
|
|
|
|
static std::unique_ptr<HWComponent> create() {
|
|
return std::unique_ptr<Sixty6Video>(new Sixty6Video());
|
|
}
|
|
|
|
protected:
|
|
|
|
void enable_display();
|
|
void disable_display();
|
|
|
|
// HWComponent methods
|
|
int device_postinit();
|
|
|
|
// IobusDevice methods
|
|
uint16_t iodev_read(uint32_t address);
|
|
void iodev_write(uint32_t address, uint16_t value);
|
|
|
|
uint8_t control_addr = 0;
|
|
uint8_t clut_addr = 0;
|
|
uint8_t clut_color[3];
|
|
uint8_t comp_index = 0;
|
|
|
|
uint16_t v1_odd = 0;
|
|
uint16_t v2_odd = 0;
|
|
uint16_t v1_even = 0;
|
|
uint16_t v2_even = 0;
|
|
uint16_t h1 = 0;
|
|
uint16_t h2 = 0;
|
|
uint32_t base_addr = 0;
|
|
uint16_t pitch = 0;
|
|
uint16_t cursor_x = 0;
|
|
uint16_t cursor_y = 0;
|
|
uint16_t int_count = 0;
|
|
uint8_t control_1 = 0;
|
|
bool interrupt_enabled = false;
|
|
uint8_t control_2 = 0;
|
|
uint8_t last_control_1_value = 0;
|
|
uint8_t last_control_1_count = 0;
|
|
|
|
bool changed = false;
|
|
|
|
std::unique_ptr<Saa7187VideoEncoder> saa7187;
|
|
ControlVideo * control_video = nullptr;
|
|
};
|
|
|
|
#endif // SIXTY6_VIDEO_H
|