src/platform/wii/main.c (view raw)
1/* Copyright (c) 2013-2015 Jeffrey Pfau
2 *
3 * This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6#define asm __asm__
7
8#include <fat.h>
9#include <gccore.h>
10#include <malloc.h>
11#include <wiiuse/wpad.h>
12
13#include "util/common.h"
14
15#include "gba/renderers/video-software.h"
16#include "gba/supervisor/context.h"
17#include "util/gui.h"
18#include "util/gui/file-select.h"
19#include "util/gui/font.h"
20#include "util/vfs.h"
21
22#define SAMPLES 1024
23
24static void GBAWiiLog(struct GBAThread* thread, enum GBALogLevel level, const char* format, va_list args);
25static void GBAWiiFrame(void);
26static bool GBAWiiLoadGame(const char* path);
27
28static void _postVideoFrame(struct GBAAVStream*, struct GBAVideoRenderer* renderer);
29static void _audioDMA(void);
30static void _setRumble(struct GBARumble* rumble, int enable);
31
32static void _drawStart(void);
33static void _drawEnd(void);
34static int _pollInput(void);
35
36static struct GBAContext context;
37static struct GBAVideoSoftwareRenderer renderer;
38static struct GBAAVStream stream;
39static struct GBARumble rumble;
40static FILE* logfile;
41static GXRModeObj* mode;
42static Mtx model, view, modelview;
43static uint16_t* texmem;
44static GXTexObj tex;
45
46static void* framebuffer[2];
47static int whichFb = 0;
48
49static struct GBAStereoSample audioBuffer[3][SAMPLES] __attribute__((__aligned__(32)));
50static volatile size_t audioBufferSize = 0;
51static volatile int currentAudioBuffer = 0;
52
53static struct GUIFont* font;
54
55int main() {
56 VIDEO_Init();
57 PAD_Init();
58 WPAD_Init();
59 AUDIO_Init(0);
60 AUDIO_SetDSPSampleRate(AI_SAMPLERATE_48KHZ);
61 AUDIO_RegisterDMACallback(_audioDMA);
62
63 memset(audioBuffer, 0, sizeof(audioBuffer));
64
65#if !defined(COLOR_16_BIT) && !defined(COLOR_5_6_5)
66#error This pixel format is unsupported. Please use -DCOLOR_16-BIT -DCOLOR_5_6_5
67#endif
68
69 mode = VIDEO_GetPreferredMode(0);
70 framebuffer[0] = SYS_AllocateFramebuffer(mode);
71 framebuffer[1] = SYS_AllocateFramebuffer(mode);
72
73 VIDEO_Configure(mode);
74 VIDEO_SetNextFramebuffer(framebuffer[whichFb]);
75 VIDEO_SetBlack(FALSE);
76 VIDEO_Flush();
77 VIDEO_WaitVSync();
78 if (mode->viTVMode & VI_NON_INTERLACE) {
79 VIDEO_WaitVSync();
80 }
81
82 GXColor bg = { 0, 0, 0, 0xFF };
83 void* fifo = memalign(32, 0x40000);
84 memset(fifo, 0, 0x40000);
85 GX_Init(fifo, 0x40000);
86 GX_SetCopyClear(bg, 0x00FFFFFF);
87 GX_SetViewport(0, 0, mode->fbWidth, mode->efbHeight, 0, 1);
88
89 f32 yscale = GX_GetYScaleFactor(mode->efbHeight, mode->xfbHeight);
90 u32 xfbHeight = GX_SetDispCopyYScale(yscale);
91 GX_SetScissor(0, 0, mode->viWidth, mode->viWidth);
92 GX_SetDispCopySrc(0, 0, mode->fbWidth, mode->efbHeight);
93 GX_SetDispCopyDst(mode->fbWidth, xfbHeight);
94 GX_SetCopyFilter(mode->aa, mode->sample_pattern, GX_TRUE, mode->vfilter);
95 GX_SetFieldMode(mode->field_rendering, ((mode->viHeight == 2 * mode->xfbHeight) ? GX_ENABLE : GX_DISABLE));
96
97 GX_SetCullMode(GX_CULL_NONE);
98 GX_CopyDisp(framebuffer[whichFb], GX_TRUE);
99 GX_SetDispCopyGamma(GX_GM_1_0);
100
101 GX_ClearVtxDesc();
102 GX_SetVtxDesc(GX_VA_POS, GX_DIRECT);
103 GX_SetVtxDesc(GX_VA_TEX0, GX_DIRECT);
104
105 GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_POS_XY, GX_S16, 0);
106 GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_S16, 0);
107
108 GX_SetNumChans(1);
109 GX_SetNumTexGens(1);
110 GX_SetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR0A0);
111 GX_SetTevOp(GX_TEVSTAGE0, GX_REPLACE);
112
113 GX_SetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_IDENTITY);
114 GX_InvVtxCache();
115 GX_InvalidateTexAll();
116
117 Mtx44 proj;
118
119 guVector cam = { 0.0f, 0.0f, 0.0f };
120 guVector up = { 0.0f, 1.0f, 0.0f };
121 guVector look = { 0.0f, 0.0f, -1.0f };
122 guLookAt(view, &cam, &up, &look);
123
124 guMtxIdentity(model);
125 guMtxTransApply(model, model, 0.0f, 0.0f, -6.0f);
126 guMtxConcat(view, model, modelview);
127 GX_LoadPosMtxImm(modelview, GX_PNMTX0);
128
129 texmem = memalign(32, 256 * 256 * BYTES_PER_PIXEL);
130 memset(texmem, 0, 256 * 256 * BYTES_PER_PIXEL);
131 GX_InitTexObj(&tex, texmem, 256, 256, GX_TF_RGB565, GX_CLAMP, GX_CLAMP, GX_FALSE);
132
133 font = GUIFontCreate();
134
135 fatInitDefault();
136
137 logfile = fopen("/mgba.log", "w");
138
139 stream.postAudioFrame = 0;
140 stream.postAudioBuffer = 0;
141 stream.postVideoFrame = _postVideoFrame;
142
143 rumble.setRumble = _setRumble;
144
145 GBAContextInit(&context, 0);
146 struct GBAOptions opts = {
147 .useBios = true,
148 .logLevel = 0,
149 .idleOptimization = IDLE_LOOP_REMOVE
150 };
151 GBAConfigLoadDefaults(&context.config, &opts);
152 context.gba->logHandler = GBAWiiLog;
153 context.gba->stream = &stream;
154 context.gba->rumble = &rumble;
155
156 GBAVideoSoftwareRendererCreate(&renderer);
157 renderer.outputBuffer = memalign(32, 256 * 256 * BYTES_PER_PIXEL);
158 renderer.outputBufferStride = 256;
159 GBAVideoAssociateRenderer(&context.gba->video, &renderer.d);
160
161 GBAAudioResizeBuffer(&context.gba->audio, SAMPLES);
162
163#if RESAMPLE_LIBRARY == RESAMPLE_BLIP_BUF
164 blip_set_rates(context.gba->audio.left, GBA_ARM7TDMI_FREQUENCY, 48000);
165 blip_set_rates(context.gba->audio.right, GBA_ARM7TDMI_FREQUENCY, 48000);
166#endif
167
168 char currentPath[256] = "";
169 while (true) {
170 char path[256];
171 guOrtho(proj, -20, 240, 0, 352, 0, 300);
172 GX_LoadProjectionMtx(proj, GX_ORTHOGRAPHIC);
173
174 struct GUIParams params = {
175 352, 230,
176 font, _drawStart, _drawEnd, _pollInput
177 };
178 if (!selectFile(¶ms, "/", path, currentPath, sizeof(path), GBAIsROM) || !GBAWiiLoadGame(path)) {
179 break;
180 }
181 GBAContextStart(&context);
182
183 guOrtho(proj, -10, VIDEO_VERTICAL_PIXELS + 10, 0, VIDEO_HORIZONTAL_PIXELS, 0, 300);
184 GX_LoadProjectionMtx(proj, GX_ORTHOGRAPHIC);
185
186 while (true) {
187 #if RESAMPLE_LIBRARY == RESAMPLE_BLIP_BUF
188 int available = blip_samples_avail(context.gba->audio.left);
189 if (available + audioBufferSize > SAMPLES) {
190 available = SAMPLES - audioBufferSize;
191 }
192 available &= ~((32 / sizeof(struct GBAStereoSample)) - 1); // Force align to 32 bytes
193 if (available > 0) {
194 blip_read_samples(context.gba->audio.left, &audioBuffer[currentAudioBuffer][audioBufferSize].left, available, true);
195 blip_read_samples(context.gba->audio.right, &audioBuffer[currentAudioBuffer][audioBufferSize].right, available, true);
196 audioBufferSize += available;
197 }
198 if (audioBufferSize == SAMPLES && !AUDIO_GetDMAEnableFlag()) {
199 _audioDMA();
200 AUDIO_StartDMA();
201 }
202 #endif
203 PAD_ScanPads();
204 u16 padkeys = PAD_ButtonsHeld(0);
205 WPAD_ScanPads();
206 u32 wiiPad = WPAD_ButtonsHeld(0);
207 u32 ext = 0;
208 uint16_t keys = 0;
209 WPAD_Probe(0, &ext);
210
211 if ((padkeys & PAD_BUTTON_A) || (wiiPad & WPAD_BUTTON_2) ||
212 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & (WPAD_CLASSIC_BUTTON_A | WPAD_CLASSIC_BUTTON_Y)))) {
213 keys |= 1 << GBA_KEY_A;
214 }
215 if ((padkeys & PAD_BUTTON_B) || (wiiPad & WPAD_BUTTON_1) ||
216 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & (WPAD_CLASSIC_BUTTON_B | WPAD_CLASSIC_BUTTON_X)))) {
217 keys |= 1 << GBA_KEY_B;
218 }
219 if ((padkeys & PAD_TRIGGER_L) || (wiiPad & WPAD_BUTTON_B) ||
220 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_FULL_L))) {
221 keys |= 1 << GBA_KEY_L;
222 }
223 if ((padkeys & PAD_TRIGGER_R) || (wiiPad & WPAD_BUTTON_A) ||
224 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_FULL_R))) {
225 keys |= 1 << GBA_KEY_R;
226 }
227 if ((padkeys & PAD_BUTTON_START) || (wiiPad & WPAD_BUTTON_PLUS) ||
228 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_PLUS))) {
229 keys |= 1 << GBA_KEY_START;
230 }
231 if ((padkeys & (PAD_BUTTON_X | PAD_BUTTON_Y)) || (wiiPad & WPAD_BUTTON_MINUS) ||
232 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_MINUS))) {
233 keys |= 1 << GBA_KEY_SELECT;
234 }
235 if ((padkeys & PAD_BUTTON_LEFT) || (wiiPad & WPAD_BUTTON_UP) ||
236 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_LEFT))) {
237 keys |= 1 << GBA_KEY_LEFT;
238 }
239 if ((padkeys & PAD_BUTTON_RIGHT) || (wiiPad & WPAD_BUTTON_DOWN) ||
240 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_RIGHT))) {
241 keys |= 1 << GBA_KEY_RIGHT;
242 }
243 if ((padkeys & PAD_BUTTON_UP) || (wiiPad & WPAD_BUTTON_RIGHT) ||
244 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_UP))) {
245 keys |= 1 << GBA_KEY_UP;
246 }
247 if ((padkeys & PAD_BUTTON_DOWN) || (wiiPad & WPAD_BUTTON_LEFT) ||
248 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_DOWN))) {
249 keys |= 1 << GBA_KEY_DOWN;
250 }
251 int x = PAD_StickX(0);
252 int y = PAD_StickY(0);
253 if (x < -0x40) {
254 keys |= 1 << GBA_KEY_LEFT;
255 }
256 if (x > 0x40) {
257 keys |= 1 << GBA_KEY_RIGHT;
258 }
259 if (y < -0x40) {
260 keys |= 1 << GBA_KEY_DOWN;
261 }
262 if (y > 0x40) {
263 keys |= 1 << GBA_KEY_UP;
264 }
265 if ((padkeys & PAD_TRIGGER_Z) || (wiiPad & WPAD_BUTTON_HOME) || (wiiPad & WPAD_CLASSIC_BUTTON_HOME)) {
266 break;
267 }
268 GBAContextFrame(&context, keys);
269 }
270 AUDIO_StopDMA();
271 GBAContextStop(&context);
272 }
273
274 fclose(logfile);
275 free(fifo);
276
277 GBAContextDeinit(&context);
278
279 free(renderer.outputBuffer);
280 GUIFontDestroy(font);
281
282 return 0;
283}
284
285static void GBAWiiFrame(void) {
286 VIDEO_WaitVSync();
287
288 size_t x, y;
289 uint64_t* texdest = (uint64_t*) texmem;
290 uint64_t* texsrc = (uint64_t*) renderer.outputBuffer;
291 for (y = 0; y < VIDEO_VERTICAL_PIXELS; y += 4) {
292 for (x = 0; x < VIDEO_HORIZONTAL_PIXELS >> 2; ++x) {
293 texdest[0 + x * 4 + y * 64] = texsrc[0 + x + y * 64];
294 texdest[1 + x * 4 + y * 64] = texsrc[64 + x + y * 64];
295 texdest[2 + x * 4 + y * 64] = texsrc[128 + x + y * 64];
296 texdest[3 + x * 4 + y * 64] = texsrc[192 + x + y * 64];
297 }
298 }
299 DCFlushRange(texdest, 256 * 256 * BYTES_PER_PIXEL);
300
301 _drawStart();
302
303 GX_SetBlendMode(GX_BM_NONE, GX_BL_ONE, GX_BL_ZERO, GX_LO_SET);
304 GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_S16, 0);
305 GX_InvalidateTexAll();
306 GX_LoadTexObj(&tex, GX_TEXMAP0);
307
308 GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
309 GX_Position2s16(0, 256);
310 GX_TexCoord2s16(0, 1);
311
312 GX_Position2s16(256, 256);
313 GX_TexCoord2s16(1, 1);
314
315 GX_Position2s16(256, 0);
316 GX_TexCoord2s16(1, 0);
317
318 GX_Position2s16(0, 0);
319 GX_TexCoord2s16(0, 0);
320 GX_End();
321
322 _drawEnd();
323}
324
325bool GBAWiiLoadGame(const char* path) {
326 _drawStart();
327 GUIFontPrintf(font, 0, 30, GUI_TEXT_CENTER, 0xFFFFFFFF, "Loading...");
328 _drawEnd();
329
330 return GBAContextLoadROM(&context, path, true);
331}
332
333void GBAWiiLog(struct GBAThread* thread, enum GBALogLevel level, const char* format, va_list args) {
334 UNUSED(thread);
335 UNUSED(level);
336 vfprintf(logfile, format, args);
337 fprintf(logfile, "\n");
338 fflush(logfile);
339}
340
341static void _postVideoFrame(struct GBAAVStream* stream, struct GBAVideoRenderer* renderer) {
342 UNUSED(stream);
343 UNUSED(renderer);
344 GBAWiiFrame();
345}
346
347static void _audioDMA(void) {
348 if (!audioBufferSize) {
349 return;
350 }
351 DCFlushRange(audioBuffer[currentAudioBuffer], audioBufferSize * sizeof(struct GBAStereoSample));
352 AUDIO_InitDMA((u32) audioBuffer[currentAudioBuffer], audioBufferSize * sizeof(struct GBAStereoSample));
353 currentAudioBuffer = (currentAudioBuffer + 1) % 3;
354 audioBufferSize = 0;
355}
356
357static void _drawStart(void) {
358 GX_SetZMode(GX_TRUE, GX_LEQUAL, GX_TRUE);
359 GX_SetColorUpdate(GX_TRUE);
360
361 GX_SetViewport(0, 0, mode->fbWidth, mode->efbHeight, 0, 1);
362}
363
364static void _drawEnd(void) {
365 GX_DrawDone();
366
367 whichFb = !whichFb;
368
369 GX_CopyDisp(framebuffer[whichFb], GX_TRUE);
370 VIDEO_SetNextFramebuffer(framebuffer[whichFb]);
371 VIDEO_Flush();
372}
373
374static int _pollInput(void) {
375 PAD_ScanPads();
376 u16 padkeys = PAD_ButtonsHeld(0);
377
378 WPAD_ScanPads();
379 u32 wiiPad = WPAD_ButtonsHeld(0);
380 u32 ext = 0;
381 WPAD_Probe(0, &ext);
382
383 int keys = 0;
384 if ((padkeys & PAD_BUTTON_A) || (wiiPad & WPAD_BUTTON_2) ||
385 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & (WPAD_CLASSIC_BUTTON_A | WPAD_CLASSIC_BUTTON_Y)))) {
386 keys |= 1 << GUI_INPUT_SELECT;
387 }
388 if ((padkeys & PAD_BUTTON_B) || (wiiPad & WPAD_BUTTON_1) ||
389 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & (WPAD_CLASSIC_BUTTON_B | WPAD_CLASSIC_BUTTON_X)))) {
390 keys |= 1 << GUI_INPUT_BACK;
391 }
392 if ((padkeys & PAD_TRIGGER_Z) || (wiiPad & WPAD_BUTTON_HOME) ||
393 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & (WPAD_CLASSIC_BUTTON_HOME)))) {
394 keys |= 1 << GUI_INPUT_CANCEL;
395 }
396 if ((padkeys & PAD_BUTTON_LEFT)|| (wiiPad & WPAD_BUTTON_UP) ||
397 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_LEFT))) {
398 keys |= 1 << GUI_INPUT_LEFT;
399 }
400 if ((padkeys & PAD_BUTTON_RIGHT) || (wiiPad & WPAD_BUTTON_DOWN) ||
401 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_RIGHT))) {
402 keys |= 1 << GUI_INPUT_RIGHT;
403 }
404 if ((padkeys & PAD_BUTTON_UP) || (wiiPad & WPAD_BUTTON_RIGHT) ||
405 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_UP))) {
406 keys |= 1 << GUI_INPUT_UP;
407 }
408 if ((padkeys & PAD_BUTTON_DOWN) || (wiiPad & WPAD_BUTTON_LEFT) ||
409 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_DOWN))) {
410 keys |= 1 << GUI_INPUT_DOWN;
411 }
412 return keys;
413}
414
415void _setRumble(struct GBARumble* rumble, int enable) {
416 UNUSED(rumble);
417 WPAD_Rumble(0, enable);
418}