platform ps2, handle audio similar to psp
[picodrive.git] / plat_sdl.c
... / ...
CommitLineData
1/*
2 * PicoDrive
3 * (C) notaz, 2013
4 *
5 * This work is licensed under the terms of MAME license.
6 * See COPYING file in the top-level directory.
7 */
8
9#include <stdio.h>
10
11#include "../libpicofe/input.h"
12#include "../libpicofe/plat_sdl.h"
13#include "../libpicofe/in_sdl.h"
14#include "../libpicofe/gl.h"
15#include "emu.h"
16#include "menu_pico.h"
17#include "input_pico.h"
18#include "version.h"
19
20#include <pico/pico.h>
21
22static void *shadow_fb;
23
24const struct in_default_bind in_sdl_defbinds[] __attribute__((weak)) = {
25 { SDLK_UP, IN_BINDTYPE_PLAYER12, GBTN_UP },
26 { SDLK_DOWN, IN_BINDTYPE_PLAYER12, GBTN_DOWN },
27 { SDLK_LEFT, IN_BINDTYPE_PLAYER12, GBTN_LEFT },
28 { SDLK_RIGHT, IN_BINDTYPE_PLAYER12, GBTN_RIGHT },
29 { SDLK_z, IN_BINDTYPE_PLAYER12, GBTN_A },
30 { SDLK_x, IN_BINDTYPE_PLAYER12, GBTN_B },
31 { SDLK_c, IN_BINDTYPE_PLAYER12, GBTN_C },
32 { SDLK_a, IN_BINDTYPE_PLAYER12, GBTN_X },
33 { SDLK_s, IN_BINDTYPE_PLAYER12, GBTN_Y },
34 { SDLK_d, IN_BINDTYPE_PLAYER12, GBTN_Z },
35 { SDLK_RETURN, IN_BINDTYPE_PLAYER12, GBTN_START },
36 { SDLK_f, IN_BINDTYPE_PLAYER12, GBTN_MODE },
37 { SDLK_ESCAPE, IN_BINDTYPE_EMU, PEVB_MENU },
38 { SDLK_F1, IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
39 { SDLK_F2, IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
40 { SDLK_F3, IN_BINDTYPE_EMU, PEVB_SSLOT_PREV },
41 { SDLK_F4, IN_BINDTYPE_EMU, PEVB_SSLOT_NEXT },
42 { SDLK_F5, IN_BINDTYPE_EMU, PEVB_SWITCH_RND },
43 { SDLK_F6, IN_BINDTYPE_EMU, PEVB_PICO_PPREV },
44 { SDLK_F7, IN_BINDTYPE_EMU, PEVB_PICO_PNEXT },
45 { SDLK_F8, IN_BINDTYPE_EMU, PEVB_PICO_SWINP },
46 { SDLK_BACKSPACE, IN_BINDTYPE_EMU, PEVB_FF },
47 { 0, 0, 0 }
48};
49
50const struct menu_keymap in_sdl_key_map[] __attribute__((weak)) =
51{
52 { SDLK_UP, PBTN_UP },
53 { SDLK_DOWN, PBTN_DOWN },
54 { SDLK_LEFT, PBTN_LEFT },
55 { SDLK_RIGHT, PBTN_RIGHT },
56 { SDLK_RETURN, PBTN_MOK },
57 { SDLK_ESCAPE, PBTN_MBACK },
58 { SDLK_SEMICOLON, PBTN_MA2 },
59 { SDLK_QUOTE, PBTN_MA3 },
60 { SDLK_LEFTBRACKET, PBTN_L },
61 { SDLK_RIGHTBRACKET, PBTN_R },
62};
63
64const struct menu_keymap in_sdl_joy_map[] __attribute__((weak)) =
65{
66 { SDLK_UP, PBTN_UP },
67 { SDLK_DOWN, PBTN_DOWN },
68 { SDLK_LEFT, PBTN_LEFT },
69 { SDLK_RIGHT, PBTN_RIGHT },
70 /* joystick */
71 { SDLK_WORLD_0, PBTN_MOK },
72 { SDLK_WORLD_1, PBTN_MBACK },
73 { SDLK_WORLD_2, PBTN_MA2 },
74 { SDLK_WORLD_3, PBTN_MA3 },
75};
76
77extern const char * const in_sdl_key_names[] __attribute__((weak));
78
79static const struct in_pdata in_sdl_platform_data = {
80 .defbinds = in_sdl_defbinds,
81 .key_map = in_sdl_key_map,
82 .kmap_size = sizeof(in_sdl_key_map) / sizeof(in_sdl_key_map[0]),
83 .joy_map = in_sdl_joy_map,
84 .jmap_size = sizeof(in_sdl_joy_map) / sizeof(in_sdl_joy_map[0]),
85 .key_names = in_sdl_key_names,
86};
87
88/* YUV stuff */
89static int yuv_ry[32], yuv_gy[32], yuv_by[32];
90static unsigned char yuv_u[32 * 2], yuv_v[32 * 2];
91
92void bgr_to_uyvy_init(void)
93{
94 int i, v;
95
96 /* init yuv converter:
97 y0 = (int)((0.299f * r0) + (0.587f * g0) + (0.114f * b0));
98 y1 = (int)((0.299f * r1) + (0.587f * g1) + (0.114f * b1));
99 u = (int)(8 * 0.565f * (b0 - y0)) + 128;
100 v = (int)(8 * 0.713f * (r0 - y0)) + 128;
101 */
102 for (i = 0; i < 32; i++) {
103 yuv_ry[i] = (int)(0.299f * i * 65536.0f + 0.5f);
104 yuv_gy[i] = (int)(0.587f * i * 65536.0f + 0.5f);
105 yuv_by[i] = (int)(0.114f * i * 65536.0f + 0.5f);
106 }
107 for (i = -32; i < 32; i++) {
108 v = (int)(8 * 0.565f * i) + 128;
109 if (v < 0)
110 v = 0;
111 if (v > 255)
112 v = 255;
113 yuv_u[i + 32] = v;
114 v = (int)(8 * 0.713f * i) + 128;
115 if (v < 0)
116 v = 0;
117 if (v > 255)
118 v = 255;
119 yuv_v[i + 32] = v;
120 }
121}
122
123void rgb565_to_uyvy(void *d, const void *s, int pixels)
124{
125 unsigned int *dst = d;
126 const unsigned short *src = s;
127 const unsigned char *yu = yuv_u + 32;
128 const unsigned char *yv = yuv_v + 32;
129 int r0, g0, b0, r1, g1, b1;
130 int y0, y1, u, v;
131
132 for (; pixels > 0; src += 2, dst++, pixels -= 2)
133 {
134 r0 = (src[0] >> 11) & 0x1f;
135 g0 = (src[0] >> 6) & 0x1f;
136 b0 = src[0] & 0x1f;
137 r1 = (src[1] >> 11) & 0x1f;
138 g1 = (src[1] >> 6) & 0x1f;
139 b1 = src[1] & 0x1f;
140 y0 = (yuv_ry[r0] + yuv_gy[g0] + yuv_by[b0]) >> 16;
141 y1 = (yuv_ry[r1] + yuv_gy[g1] + yuv_by[b1]) >> 16;
142 u = yu[b0 - y0];
143 v = yv[r0 - y0];
144 // valid Y range seems to be 16..235
145 y0 = 16 + 219 * y0 / 31;
146 y1 = 16 + 219 * y1 / 31;
147
148 *dst = (y1 << 24) | (v << 16) | (y0 << 8) | u;
149 }
150}
151
152void plat_video_flip(void)
153{
154 if (plat_sdl_overlay != NULL) {
155 SDL_Rect dstrect =
156 { 0, 0, plat_sdl_screen->w, plat_sdl_screen->h };
157
158 SDL_LockYUVOverlay(plat_sdl_overlay);
159 rgb565_to_uyvy(plat_sdl_overlay->pixels[0], shadow_fb,
160 g_screen_width * g_screen_height);
161 SDL_UnlockYUVOverlay(plat_sdl_overlay);
162 SDL_DisplayYUVOverlay(plat_sdl_overlay, &dstrect);
163 }
164 else if (plat_sdl_gl_active) {
165 gl_flip(shadow_fb, g_screen_width, g_screen_height);
166 }
167 else {
168 if (SDL_MUSTLOCK(plat_sdl_screen))
169 SDL_UnlockSurface(plat_sdl_screen);
170 SDL_Flip(plat_sdl_screen);
171 g_screen_ptr = plat_sdl_screen->pixels;
172 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
173 }
174}
175
176void plat_video_wait_vsync(void)
177{
178}
179
180void plat_video_menu_enter(int is_rom_loaded)
181{
182 plat_sdl_change_video_mode(g_menuscreen_w, g_menuscreen_h, 0);
183 g_screen_ptr = shadow_fb;
184}
185
186void plat_video_menu_begin(void)
187{
188 if (plat_sdl_overlay != NULL || plat_sdl_gl_active) {
189 g_menuscreen_ptr = shadow_fb;
190 }
191 else {
192 if (SDL_MUSTLOCK(plat_sdl_screen))
193 SDL_LockSurface(plat_sdl_screen);
194 g_menuscreen_ptr = plat_sdl_screen->pixels;
195 }
196}
197
198void plat_video_menu_end(void)
199{
200 if (plat_sdl_overlay != NULL) {
201 SDL_Rect dstrect =
202 { 0, 0, plat_sdl_screen->w, plat_sdl_screen->h };
203
204 SDL_LockYUVOverlay(plat_sdl_overlay);
205 rgb565_to_uyvy(plat_sdl_overlay->pixels[0], shadow_fb,
206 g_menuscreen_w * g_menuscreen_h);
207 SDL_UnlockYUVOverlay(plat_sdl_overlay);
208
209 SDL_DisplayYUVOverlay(plat_sdl_overlay, &dstrect);
210 }
211 else if (plat_sdl_gl_active) {
212 gl_flip(g_menuscreen_ptr, g_menuscreen_w, g_menuscreen_h);
213 }
214 else {
215 if (SDL_MUSTLOCK(plat_sdl_screen))
216 SDL_UnlockSurface(plat_sdl_screen);
217 SDL_Flip(plat_sdl_screen);
218 }
219 g_menuscreen_ptr = NULL;
220
221}
222
223void plat_video_menu_leave(void)
224{
225}
226
227void plat_video_loop_prepare(void)
228{
229 plat_sdl_change_video_mode(g_screen_width, g_screen_height, 0);
230
231 if (plat_sdl_overlay != NULL || plat_sdl_gl_active) {
232 g_screen_ptr = shadow_fb;
233 }
234 else {
235 if (SDL_MUSTLOCK(plat_sdl_screen))
236 SDL_LockSurface(plat_sdl_screen);
237 g_screen_ptr = plat_sdl_screen->pixels;
238 }
239 PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
240}
241
242void plat_early_init(void)
243{
244}
245
246static void plat_sdl_quit(void)
247{
248 // for now..
249 exit(1);
250}
251
252void plat_init(void)
253{
254 int shadow_size;
255 int ret;
256
257 ret = plat_sdl_init();
258 if (ret != 0)
259 exit(1);
260
261 plat_sdl_quit_cb = plat_sdl_quit;
262
263 SDL_WM_SetCaption("PicoDrive " VERSION, NULL);
264
265 g_menuscreen_w = plat_sdl_screen->w;
266 g_menuscreen_h = plat_sdl_screen->h;
267 g_menuscreen_ptr = NULL;
268
269 shadow_size = g_menuscreen_w * g_menuscreen_h * 2;
270 if (shadow_size < 320 * 480 * 2)
271 shadow_size = 320 * 480 * 2;
272
273 shadow_fb = malloc(shadow_size);
274 g_menubg_ptr = malloc(shadow_size);
275 if (shadow_fb == NULL || g_menubg_ptr == NULL) {
276 fprintf(stderr, "OOM\n");
277 exit(1);
278 }
279
280 g_screen_width = 320;
281 g_screen_height = 240;
282 g_screen_ptr = shadow_fb;
283
284 in_sdl_init(&in_sdl_platform_data, plat_sdl_event_handler);
285 in_probe();
286
287 bgr_to_uyvy_init();
288}
289
290void plat_finish(void)
291{
292 free(shadow_fb);
293 shadow_fb = NULL;
294 free(g_menubg_ptr);
295 g_menubg_ptr = NULL;
296 plat_sdl_finish();
297}