5 * This work is licensed under the terms of MAME license.
6 * See COPYING file in the top-level directory.
11 #include "../libpicofe/input.h"
12 #include "../libpicofe/plat_sdl.h"
13 #include "../libpicofe/in_sdl.h"
14 #include "../libpicofe/gl.h"
16 #include "menu_pico.h"
17 #include "input_pico.h"
20 // FIXME: these 2 shouldn't be here
21 static unsigned char PicoDraw2FB_[(8+320) * (8+240+8)];
22 unsigned char *PicoDraw2FB = PicoDraw2FB_;
24 static void *shadow_fb;
26 static const struct in_default_bind in_sdl_defbinds[] = {
27 { SDLK_UP, IN_BINDTYPE_PLAYER12, GBTN_UP },
28 { SDLK_DOWN, IN_BINDTYPE_PLAYER12, GBTN_DOWN },
29 { SDLK_LEFT, IN_BINDTYPE_PLAYER12, GBTN_LEFT },
30 { SDLK_RIGHT, IN_BINDTYPE_PLAYER12, GBTN_RIGHT },
31 { SDLK_z, IN_BINDTYPE_PLAYER12, GBTN_A },
32 { SDLK_x, IN_BINDTYPE_PLAYER12, GBTN_B },
33 { SDLK_c, IN_BINDTYPE_PLAYER12, GBTN_C },
34 { SDLK_a, IN_BINDTYPE_PLAYER12, GBTN_X },
35 { SDLK_s, IN_BINDTYPE_PLAYER12, GBTN_Y },
36 { SDLK_d, IN_BINDTYPE_PLAYER12, GBTN_Z },
37 { SDLK_RETURN, IN_BINDTYPE_PLAYER12, GBTN_START },
38 { SDLK_f, IN_BINDTYPE_PLAYER12, GBTN_MODE },
39 { SDLK_ESCAPE, IN_BINDTYPE_EMU, PEVB_MENU },
40 { SDLK_F1, IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
41 { SDLK_F2, IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
42 { SDLK_F3, IN_BINDTYPE_EMU, PEVB_SSLOT_PREV },
43 { SDLK_F4, IN_BINDTYPE_EMU, PEVB_SSLOT_NEXT },
44 { SDLK_F5, IN_BINDTYPE_EMU, PEVB_SWITCH_RND },
45 { SDLK_F6, IN_BINDTYPE_EMU, PEVB_PICO_PPREV },
46 { SDLK_F7, IN_BINDTYPE_EMU, PEVB_PICO_PNEXT },
47 { SDLK_F8, IN_BINDTYPE_EMU, PEVB_PICO_SWINP },
48 { SDLK_BACKSPACE, IN_BINDTYPE_EMU, PEVB_FF },
53 static int yuv_ry[32], yuv_gy[32], yuv_by[32];
54 static unsigned char yuv_u[32 * 2], yuv_v[32 * 2];
56 void bgr_to_uyvy_init(void)
60 /* init yuv converter:
61 y0 = (int)((0.299f * r0) + (0.587f * g0) + (0.114f * b0));
62 y1 = (int)((0.299f * r1) + (0.587f * g1) + (0.114f * b1));
63 u = (int)(8 * 0.565f * (b0 - y0)) + 128;
64 v = (int)(8 * 0.713f * (r0 - y0)) + 128;
66 for (i = 0; i < 32; i++) {
67 yuv_ry[i] = (int)(0.299f * i * 65536.0f + 0.5f);
68 yuv_gy[i] = (int)(0.587f * i * 65536.0f + 0.5f);
69 yuv_by[i] = (int)(0.114f * i * 65536.0f + 0.5f);
71 for (i = -32; i < 32; i++) {
72 v = (int)(8 * 0.565f * i) + 128;
78 v = (int)(8 * 0.713f * i) + 128;
87 void rgb565_to_uyvy(void *d, const void *s, int pixels)
89 unsigned int *dst = d;
90 const unsigned short *src = s;
91 const unsigned char *yu = yuv_u + 32;
92 const unsigned char *yv = yuv_v + 32;
93 int r0, g0, b0, r1, g1, b1;
96 for (; pixels > 0; src += 2, dst++, pixels -= 2)
98 r0 = (src[0] >> 11) & 0x1f;
99 g0 = (src[0] >> 6) & 0x1f;
101 r1 = (src[1] >> 11) & 0x1f;
102 g1 = (src[1] >> 6) & 0x1f;
104 y0 = (yuv_ry[r0] + yuv_gy[g0] + yuv_by[b0]) >> 16;
105 y1 = (yuv_ry[r1] + yuv_gy[g1] + yuv_by[b1]) >> 16;
108 // valid Y range seems to be 16..235
109 y0 = 16 + 219 * y0 / 31;
110 y1 = 16 + 219 * y1 / 31;
112 *dst = (y1 << 24) | (v << 16) | (y0 << 8) | u;
116 void plat_video_flip(void)
118 if (plat_sdl_overlay != NULL) {
120 { 0, 0, plat_sdl_screen->w, plat_sdl_screen->h };
122 SDL_LockYUVOverlay(plat_sdl_overlay);
123 rgb565_to_uyvy(plat_sdl_overlay->pixels[0], shadow_fb,
124 g_screen_width * g_screen_height);
125 SDL_UnlockYUVOverlay(plat_sdl_overlay);
126 SDL_DisplayYUVOverlay(plat_sdl_overlay, &dstrect);
128 else if (plat_sdl_gl_active) {
129 gl_flip(shadow_fb, g_screen_width, g_screen_height);
132 // XXX: no locking, but should be fine with SDL_SWSURFACE?
133 SDL_Flip(plat_sdl_screen);
134 g_screen_ptr = plat_sdl_screen->pixels;
138 void plat_video_wait_vsync(void)
142 void plat_video_menu_enter(int is_rom_loaded)
144 plat_sdl_change_video_mode(g_menuscreen_w, g_menuscreen_h, 0);
147 void plat_video_menu_begin(void)
149 if (plat_sdl_overlay != NULL || plat_sdl_gl_active) {
150 g_menuscreen_ptr = shadow_fb;
153 SDL_LockSurface(plat_sdl_screen);
154 g_menuscreen_ptr = plat_sdl_screen->pixels;
158 void plat_video_menu_end(void)
160 if (plat_sdl_overlay != NULL) {
162 { 0, 0, plat_sdl_screen->w, plat_sdl_screen->h };
164 SDL_LockYUVOverlay(plat_sdl_overlay);
165 rgb565_to_uyvy(plat_sdl_overlay->pixels[0], shadow_fb,
166 g_menuscreen_w * g_menuscreen_h);
167 SDL_UnlockYUVOverlay(plat_sdl_overlay);
169 SDL_DisplayYUVOverlay(plat_sdl_overlay, &dstrect);
171 else if (plat_sdl_gl_active) {
172 gl_flip(g_menuscreen_ptr, g_menuscreen_w, g_menuscreen_h);
175 SDL_UnlockSurface(plat_sdl_screen);
176 SDL_Flip(plat_sdl_screen);
178 g_menuscreen_ptr = NULL;
182 void plat_video_menu_leave(void)
186 void plat_video_loop_prepare(void)
188 plat_sdl_change_video_mode(g_screen_width, g_screen_height, 0);
190 if (plat_sdl_overlay != NULL || plat_sdl_gl_active) {
191 g_screen_ptr = shadow_fb;
194 SDL_LockSurface(plat_sdl_screen);
195 g_screen_ptr = plat_sdl_screen->pixels;
199 void plat_early_init(void)
208 ret = plat_sdl_init();
212 SDL_WM_SetCaption("PicoDrive" VERSION, NULL);
214 g_menuscreen_w = plat_sdl_screen->w;
215 g_menuscreen_h = plat_sdl_screen->h;
216 g_menuscreen_ptr = NULL;
218 shadow_size = g_menuscreen_w * g_menuscreen_h * 2;
219 if (shadow_size < 320 * 480 * 2)
220 shadow_size = 320 * 480 * 2;
222 shadow_fb = malloc(shadow_size);
223 g_menubg_ptr = malloc(shadow_size);
224 if (shadow_fb == NULL || g_menubg_ptr == NULL) {
225 fprintf(stderr, "OOM\n");
229 g_screen_width = 320;
230 g_screen_height = 240;
231 g_screen_ptr = shadow_fb;
233 in_sdl_init(in_sdl_defbinds, plat_sdl_event_handler);
239 void plat_finish(void)