1 // SPDX-License-Identifier: MIT
10 #include "config_file/config_file.h"
13 uint16_t rtg_x[8], rtg_y[8];
16 uint32_t rtg_address[8];
17 uint32_t rtg_address_adj[8];
20 static uint8_t display_enabled = 0xFF;
22 uint16_t rtg_display_width, rtg_display_height;
23 uint16_t rtg_display_format;
24 uint16_t rtg_pitch, rtg_total_rows;
25 uint16_t rtg_offset_x, rtg_offset_y;
27 uint8_t *rtg_mem; // FIXME
29 uint32_t framebuffer_addr = 0;
30 uint32_t framebuffer_addr_adj = 0;
32 static void handle_rtg_command(uint32_t cmd);
33 //static struct timespec f1, f2;
35 uint8_t realtime_graphics_debug = 0;
36 extern int cpu_emulation_running;
37 extern struct emulator_config *cfg;
38 extern uint8_t rtg_on;
41 static const char *op_type_names[OP_TYPE_NUM] = {
48 static const char *rtg_format_names[RTGFMT_NUM] = {
56 rtg_mem = calloc(1, 40 * SIZE_MEGA);
58 printf("Failed to allocate RTG video memory.\n");
62 m68k_add_ram_range(PIGFX_RTG_BASE + PIGFX_REG_SIZE, PIGFX_RTG_SIZE - PIGFX_REG_SIZE, rtg_mem);
63 add_mapping(cfg, MAPTYPE_RAM_NOALLOC, PIGFX_RTG_BASE + PIGFX_REG_SIZE, PIGFX_RTG_SIZE - PIGFX_REG_SIZE, -1, rtg_mem, "rtg_mem");
68 printf("[RTG] Shutting down RTG.\n");
79 //void rtg_update_screen();
81 unsigned int rtg_get_fb() {
82 return PIGFX_RTG_BASE + PIGFX_REG_SIZE + framebuffer_addr_adj;
85 unsigned int rtg_read(uint32_t address, uint8_t mode) {
86 //printf("%s read from RTG: %.8X\n", op_type_names[mode], address);
87 if (address == RTG_COMMAND) {
90 if (address >= PIGFX_REG_SIZE) {
91 if (rtg_mem && (address - PIGFX_REG_SIZE) < PIGFX_UPPER) {
94 return (rtg_mem[address - PIGFX_REG_SIZE]);
97 return be16toh(*(( uint16_t *) (&rtg_mem[address - PIGFX_REG_SIZE])));
99 case OP_TYPE_LONGWORD:
100 return be32toh(*(( uint32_t *) (&rtg_mem[address - PIGFX_REG_SIZE])));
111 struct timespec diff(struct timespec start, struct timespec end)
113 struct timespec temp;
114 if ((end.tv_nsec-start.tv_nsec)<0) {
115 temp.tv_sec = end.tv_sec-start.tv_sec-1;
116 temp.tv_nsec = 1000000000+end.tv_nsec-start.tv_nsec;
118 temp.tv_sec = end.tv_sec-start.tv_sec;
119 temp.tv_nsec = end.tv_nsec-start.tv_nsec;
124 #define CHKREG(a, b) case a: b = value; break;
126 void rtg_write(uint32_t address, uint32_t value, uint8_t mode) {
127 //printf("%s write to RTG: %.8X (%.8X)\n", op_type_names[mode], address, value);
128 if (address >= PIGFX_REG_SIZE) {
129 /*if ((address - PIGFX_REG_SIZE) < framebuffer_addr) {// || (address - PIGFX_REG_SIZE) > framebuffer_addr + ((rtg_display_width << rtg_display_format) * rtg_display_height)) {
130 printf("Write to RTG memory outside frame buffer %.8X (%.8X).\n", (address - PIGFX_REG_SIZE), framebuffer_addr);
132 if (rtg_mem && (address - PIGFX_REG_SIZE) < PIGFX_UPPER) {
135 rtg_mem[address - PIGFX_REG_SIZE] = value;
138 *(( uint16_t *) (&rtg_mem[address - PIGFX_REG_SIZE])) = htobe16(value);
140 case OP_TYPE_LONGWORD:
141 *(( uint32_t *) (&rtg_mem[address - PIGFX_REG_SIZE])) = htobe32(value);
152 CHKREG(RTG_U81, rtg_u8[0]);
153 CHKREG(RTG_U82, rtg_u8[1]);
154 CHKREG(RTG_U83, rtg_u8[2]);
155 CHKREG(RTG_U84, rtg_u8[3]);
160 CHKREG(RTG_X1, rtg_x[0]);
161 CHKREG(RTG_X2, rtg_x[1]);
162 CHKREG(RTG_X3, rtg_x[2]);
163 CHKREG(RTG_X4, rtg_x[3]);
164 CHKREG(RTG_X5, rtg_x[4]);
165 CHKREG(RTG_Y1, rtg_y[0]);
166 CHKREG(RTG_Y2, rtg_y[1]);
167 CHKREG(RTG_Y3, rtg_y[2]);
168 CHKREG(RTG_Y4, rtg_y[3]);
169 CHKREG(RTG_Y5, rtg_y[4]);
170 CHKREG(RTG_U1, rtg_user[0]);
171 CHKREG(RTG_U2, rtg_user[1]);
172 CHKREG(RTG_FORMAT, rtg_format);
174 handle_rtg_command(value);
178 case OP_TYPE_LONGWORD:
181 rtg_address[0] = value;
182 rtg_address_adj[0] = value - (PIGFX_RTG_BASE + PIGFX_REG_SIZE);
185 rtg_address[1] = value;
186 rtg_address_adj[1] = value - (PIGFX_RTG_BASE + PIGFX_REG_SIZE);
188 CHKREG(RTG_ADDR3, rtg_address[2]);
189 CHKREG(RTG_ADDR4, rtg_address[3]);
190 CHKREG(RTG_RGB1, rtg_rgb[0]);
191 CHKREG(RTG_RGB2, rtg_rgb[1]);
200 #define gdebug(a) if (realtime_graphics_debug) { printf(a); m68k_end_timeslice(); cpu_emulation_running = 0; }
202 static void handle_rtg_command(uint32_t cmd) {
203 //printf("Handling RTG command %d (%.8X)\n", cmd, cmd);
206 rtg_display_format = rtg_format;
207 rtg_display_width = rtg_x[0];
208 rtg_display_height = rtg_y[0];
210 //rtg_pitch = rtg_display_width << rtg_format;
211 framebuffer_addr_adj = framebuffer_addr + (rtg_offset_x << rtg_display_format) + (rtg_offset_y * rtg_pitch);
212 rtg_total_rows = rtg_y[1];
215 //rtg_pitch = rtg_display_width << rtg_format;
216 framebuffer_addr_adj = framebuffer_addr + (rtg_offset_x << rtg_display_format) + (rtg_offset_y * rtg_pitch);
217 rtg_total_rows = rtg_y[1];
219 //printf("Set RTG mode:\n");
220 //printf("%dx%d pixels\n", rtg_display_width, rtg_display_height);
221 //printf("Pixel format: %s\n", rtg_format_names[rtg_display_format]);
224 //printf("Command: SetPan.\n");
225 rtg_offset_x = rtg_x[1];
226 rtg_offset_y = rtg_y[1];
227 rtg_pitch = (rtg_x[0] << rtg_display_format);
228 framebuffer_addr = rtg_address[0] - (PIGFX_RTG_BASE + PIGFX_REG_SIZE);
229 framebuffer_addr_adj = framebuffer_addr + (rtg_offset_x << rtg_display_format) + (rtg_offset_y * rtg_pitch);
230 //printf("Set panning to $%.8X (%.8X)\n", framebuffer_addr, rtg_address[0]);
231 //printf("(Panned: $%.8X)\n", framebuffer_addr_adj);
232 //printf("Offset X/Y: %d/%d\n", rtg_offset_x, rtg_offset_y);
233 printf("Pitch: %d (%d bytes)\n", rtg_x[0], rtg_pitch);
235 case RTGCMD_SETCLUT: {
236 //printf("Command: SetCLUT.\n");
237 //printf("Set palette entry %d to %d, %d, %d\n", rtg_u8[0], rtg_u8[1], rtg_u8[2], rtg_u8[3]);
238 //printf("Set palette entry %d to 32-bit palette color: %.8X\n", rtg_u8[0], rtg_rgb[0]);
239 rtg_set_clut_entry(rtg_u8[0], rtg_rgb[0]);
242 case RTGCMD_SETDISPLAY:
243 //printf("RTG SetDisplay %s\n", (rtg_u8[1]) ? "enabled" : "disabled");
245 //printf("Command: SetDisplay.\n");
248 case RTGCMD_SETSWITCH:
249 //printf("RTG SetSwitch %s\n", ((rtg_x[0]) & 0x01) ? "enabled" : "disabled");
250 //printf("LAL: %.4X\n", rtg_x[0]);
251 if (display_enabled != ((rtg_x[0]) & 0x01)) {
252 display_enabled = ((rtg_x[0]) & 0x01);
253 if (display_enabled) {
257 rtg_shutdown_display();
260 case RTGCMD_FILLRECT:
261 if (rtg_u8[0] == 0xFF || rtg_format != RTGFMT_8BIT) {
262 rtg_fillrect_solid(rtg_x[0], rtg_y[0], rtg_x[1], rtg_y[1], rtg_rgb[0], rtg_x[2], rtg_format);
263 gdebug("FillRect Solid\n");
266 rtg_fillrect(rtg_x[0], rtg_y[0], rtg_x[1], rtg_y[1], rtg_rgb[0], rtg_x[2], rtg_format, rtg_u8[0]);
267 gdebug("FillRect Masked\n");
270 case RTGCMD_INVERTRECT:
271 rtg_invertrect(rtg_x[0], rtg_y[0], rtg_x[1], rtg_y[1], rtg_x[2], rtg_format, rtg_u8[0]);
272 gdebug("InvertRect\n");
274 case RTGCMD_BLITRECT:
275 if (rtg_u8[0] == 0xFF || rtg_format != RTGFMT_8BIT) {
276 rtg_blitrect_solid(rtg_x[0], rtg_y[0], rtg_x[1], rtg_y[1], rtg_x[2], rtg_y[2], rtg_x[3], rtg_format);
277 gdebug("BlitRect Solid\n");
280 rtg_blitrect(rtg_x[0], rtg_y[0], rtg_x[1], rtg_y[1], rtg_x[2], rtg_y[2], rtg_x[3], rtg_format, rtg_u8[0]);
281 gdebug("BlitRect Masked\n");
284 case RTGCMD_BLITRECT_NOMASK_COMPLETE:
285 rtg_blitrect_nomask_complete(rtg_x[0], rtg_y[0], rtg_x[1], rtg_y[1], rtg_x[2], rtg_y[2], rtg_x[3], rtg_x[4], rtg_address[0], rtg_address[1], rtg_format, rtg_u8[0]);
286 gdebug("BlitRectNoMaskComplete\n");
288 case RTGCMD_BLITPATTERN:
289 rtg_blitpattern(rtg_x[0], rtg_y[0], rtg_x[1], rtg_y[1], rtg_address[0], rtg_rgb[0], rtg_rgb[1], rtg_x[3], rtg_format, rtg_x[2], rtg_y[2], rtg_u8[0], rtg_u8[1], rtg_u8[2]);
290 gdebug("BlitPattern\n");
292 case RTGCMD_BLITTEMPLATE:
293 rtg_blittemplate(rtg_x[0], rtg_y[0], rtg_x[1], rtg_y[1], rtg_address[0], rtg_rgb[0], rtg_rgb[1], rtg_x[3], rtg_x[4], rtg_format, rtg_x[2], rtg_u8[0], rtg_u8[1]);
294 gdebug("BlitTemplate\n");
296 case RTGCMD_DRAWLINE:
297 if (rtg_u8[0] == 0xFF && rtg_y[2] == 0xFFFF)
298 rtg_drawline_solid(rtg_x[0], rtg_y[0], rtg_x[1], rtg_y[1], rtg_x[2], rtg_rgb[0], rtg_x[3], rtg_format);
300 rtg_drawline(rtg_x[0], rtg_y[0], rtg_x[1], rtg_y[1], rtg_x[2], rtg_y[2], rtg_x[4], rtg_rgb[0], rtg_rgb[1], rtg_x[3], rtg_format, rtg_u8[0], rtg_u8[1]);
301 gdebug("DrawLine\n");
304 rtg_p2c(rtg_x[0], rtg_y[0], rtg_x[1], rtg_y[1], rtg_x[2], rtg_y[2], rtg_u8[1], rtg_u8[2], rtg_u8[0], (rtg_user[0] >> 0x8), rtg_x[4], (uint8_t *)&rtg_mem[rtg_address_adj[1]]);
305 //rtg_p2c_broken(rtg_x[0], rtg_y[0], rtg_x[1], rtg_y[1], rtg_x[2], rtg_y[2], rtg_x[3], rtg_u8[0], rtg_u8[1], rtg_u8[2], rtg_user[0]);
306 gdebug("Planar2Chunky\n");