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 while (true) {
169 char path[256];
170 guOrtho(proj, -20, 240, 0, 352, 0, 300);
171 GX_LoadProjectionMtx(proj, GX_ORTHOGRAPHIC);
172
173 struct GUIParams params = {
174 352, 230,
175 font, _drawStart, _drawEnd, _pollInput
176 };
177 if (!selectFile(¶ms, "/", path, sizeof(path), "gba") || !GBAWiiLoadGame(path)) {
178 break;
179 }
180 GBAContextStart(&context);
181
182 guOrtho(proj, -10, VIDEO_VERTICAL_PIXELS + 10, 0, VIDEO_HORIZONTAL_PIXELS, 0, 300);
183 GX_LoadProjectionMtx(proj, GX_ORTHOGRAPHIC);
184
185 while (true) {
186 #if RESAMPLE_LIBRARY == RESAMPLE_BLIP_BUF
187 int available = blip_samples_avail(context.gba->audio.left);
188 if (available + audioBufferSize > SAMPLES) {
189 available = SAMPLES - audioBufferSize;
190 }
191 available &= ~((32 / sizeof(struct GBAStereoSample)) - 1); // Force align to 32 bytes
192 if (available > 0) {
193 blip_read_samples(context.gba->audio.left, &audioBuffer[currentAudioBuffer][audioBufferSize].left, available, true);
194 blip_read_samples(context.gba->audio.right, &audioBuffer[currentAudioBuffer][audioBufferSize].right, available, true);
195 audioBufferSize += available;
196 }
197 if (audioBufferSize == SAMPLES && !AUDIO_GetDMAEnableFlag()) {
198 _audioDMA();
199 AUDIO_StartDMA();
200 }
201 #endif
202 PAD_ScanPads();
203 u16 padkeys = PAD_ButtonsHeld(0);
204 WPAD_ScanPads();
205 u32 wiiPad = WPAD_ButtonsHeld(0);
206 u32 ext = 0;
207 uint16_t keys = 0;
208 WPAD_Probe(0, &ext);
209
210 if ((padkeys & PAD_BUTTON_A) || (wiiPad & WPAD_BUTTON_2) ||
211 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & (WPAD_CLASSIC_BUTTON_A | WPAD_CLASSIC_BUTTON_Y)))) {
212 keys |= 1 << GBA_KEY_A;
213 }
214 if ((padkeys & PAD_BUTTON_B) || (wiiPad & WPAD_BUTTON_1) ||
215 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & (WPAD_CLASSIC_BUTTON_B | WPAD_CLASSIC_BUTTON_X)))) {
216 keys |= 1 << GBA_KEY_B;
217 }
218 if ((padkeys & PAD_TRIGGER_L) || (wiiPad & WPAD_BUTTON_B) ||
219 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_FULL_L))) {
220 keys |= 1 << GBA_KEY_L;
221 }
222 if ((padkeys & PAD_TRIGGER_R) || (wiiPad & WPAD_BUTTON_A) ||
223 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_FULL_R))) {
224 keys |= 1 << GBA_KEY_R;
225 }
226 if ((padkeys & PAD_BUTTON_START) || (wiiPad & WPAD_BUTTON_PLUS) ||
227 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_PLUS))) {
228 keys |= 1 << GBA_KEY_START;
229 }
230 if ((padkeys & (PAD_BUTTON_X | PAD_BUTTON_Y)) || (wiiPad & WPAD_BUTTON_MINUS) ||
231 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_MINUS))) {
232 keys |= 1 << GBA_KEY_SELECT;
233 }
234 if ((padkeys & PAD_BUTTON_LEFT) || (wiiPad & WPAD_BUTTON_UP) ||
235 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_LEFT))) {
236 keys |= 1 << GBA_KEY_LEFT;
237 }
238 if ((padkeys & PAD_BUTTON_RIGHT) || (wiiPad & WPAD_BUTTON_DOWN) ||
239 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_RIGHT))) {
240 keys |= 1 << GBA_KEY_RIGHT;
241 }
242 if ((padkeys & PAD_BUTTON_UP) || (wiiPad & WPAD_BUTTON_RIGHT) ||
243 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_UP))) {
244 keys |= 1 << GBA_KEY_UP;
245 }
246 if ((padkeys & PAD_BUTTON_DOWN) || (wiiPad & WPAD_BUTTON_LEFT) ||
247 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_DOWN))) {
248 keys |= 1 << GBA_KEY_DOWN;
249 }
250 int x = PAD_StickX(0);
251 int y = PAD_StickY(0);
252 if (x < -0x40) {
253 keys |= 1 << GBA_KEY_LEFT;
254 }
255 if (x > 0x40) {
256 keys |= 1 << GBA_KEY_RIGHT;
257 }
258 if (y < -0x40) {
259 keys |= 1 << GBA_KEY_DOWN;
260 }
261 if (y > 0x40) {
262 keys |= 1 << GBA_KEY_UP;
263 }
264 if ((padkeys & PAD_TRIGGER_Z) || (wiiPad & WPAD_BUTTON_HOME) || (wiiPad & WPAD_CLASSIC_BUTTON_HOME)) {
265 break;
266 }
267 GBAContextFrame(&context, keys);
268 }
269 AUDIO_StopDMA();
270 GBAContextStop(&context);
271 }
272
273 fclose(logfile);
274 free(fifo);
275
276 GBAContextDeinit(&context);
277
278 free(renderer.outputBuffer);
279 GUIFontDestroy(font);
280
281 return 0;
282}
283
284static void GBAWiiFrame(void) {
285 VIDEO_WaitVSync();
286
287 size_t x, y;
288 uint64_t* texdest = (uint64_t*) texmem;
289 uint64_t* texsrc = (uint64_t*) renderer.outputBuffer;
290 for (y = 0; y < VIDEO_VERTICAL_PIXELS; y += 4) {
291 for (x = 0; x < VIDEO_HORIZONTAL_PIXELS >> 2; ++x) {
292 texdest[0 + x * 4 + y * 64] = texsrc[0 + x + y * 64];
293 texdest[1 + x * 4 + y * 64] = texsrc[64 + x + y * 64];
294 texdest[2 + x * 4 + y * 64] = texsrc[128 + x + y * 64];
295 texdest[3 + x * 4 + y * 64] = texsrc[192 + x + y * 64];
296 }
297 }
298 DCFlushRange(texdest, 256 * 256 * BYTES_PER_PIXEL);
299
300 _drawStart();
301
302 GX_SetBlendMode(GX_BM_NONE, GX_BL_ONE, GX_BL_ZERO, GX_LO_SET);
303 GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_S16, 0);
304 GX_InvalidateTexAll();
305 GX_LoadTexObj(&tex, GX_TEXMAP0);
306
307 GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
308 GX_Position2s16(0, 256);
309 GX_TexCoord2s16(0, 1);
310
311 GX_Position2s16(256, 256);
312 GX_TexCoord2s16(1, 1);
313
314 GX_Position2s16(256, 0);
315 GX_TexCoord2s16(1, 0);
316
317 GX_Position2s16(0, 0);
318 GX_TexCoord2s16(0, 0);
319 GX_End();
320
321 _drawEnd();
322}
323
324bool GBAWiiLoadGame(const char* path) {
325 _drawStart();
326 GUIFontPrintf(font, 0, 30, GUI_TEXT_CENTER, 0xFFFFFFFF, "Loading...");
327 _drawEnd();
328
329 return GBAContextLoadROM(&context, path, true);
330}
331
332void GBAWiiLog(struct GBAThread* thread, enum GBALogLevel level, const char* format, va_list args) {
333 UNUSED(thread);
334 UNUSED(level);
335 vfprintf(logfile, format, args);
336 fprintf(logfile, "\n");
337 fflush(logfile);
338}
339
340static void _postVideoFrame(struct GBAAVStream* stream, struct GBAVideoRenderer* renderer) {
341 UNUSED(stream);
342 UNUSED(renderer);
343 GBAWiiFrame();
344}
345
346static void _audioDMA(void) {
347 if (!audioBufferSize) {
348 return;
349 }
350 DCFlushRange(audioBuffer[currentAudioBuffer], audioBufferSize * sizeof(struct GBAStereoSample));
351 AUDIO_InitDMA((u32) audioBuffer[currentAudioBuffer], audioBufferSize * sizeof(struct GBAStereoSample));
352 currentAudioBuffer = (currentAudioBuffer + 1) % 3;
353 audioBufferSize = 0;
354}
355
356static void _drawStart(void) {
357 GX_SetZMode(GX_TRUE, GX_LEQUAL, GX_TRUE);
358 GX_SetColorUpdate(GX_TRUE);
359
360 GX_SetViewport(0, 0, mode->fbWidth, mode->efbHeight, 0, 1);
361}
362
363static void _drawEnd(void) {
364 GX_DrawDone();
365
366 whichFb = !whichFb;
367
368 GX_CopyDisp(framebuffer[whichFb], GX_TRUE);
369 VIDEO_SetNextFramebuffer(framebuffer[whichFb]);
370 VIDEO_Flush();
371}
372
373static int _pollInput(void) {
374 PAD_ScanPads();
375 u16 padkeys = PAD_ButtonsHeld(0);
376
377 WPAD_ScanPads();
378 u32 wiiPad = WPAD_ButtonsHeld(0);
379 u32 ext = 0;
380 WPAD_Probe(0, &ext);
381
382 int keys = 0;
383 if ((padkeys & PAD_BUTTON_A) || (wiiPad & WPAD_BUTTON_2) ||
384 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & (WPAD_CLASSIC_BUTTON_A | WPAD_CLASSIC_BUTTON_Y)))) {
385 keys |= 1 << GUI_INPUT_SELECT;
386 }
387 if ((padkeys & PAD_BUTTON_B) || (wiiPad & WPAD_BUTTON_1) ||
388 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & (WPAD_CLASSIC_BUTTON_B | WPAD_CLASSIC_BUTTON_X)))) {
389 keys |= 1 << GUI_INPUT_BACK;
390 }
391 if ((padkeys & PAD_TRIGGER_Z) || (wiiPad & WPAD_BUTTON_HOME) ||
392 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & (WPAD_CLASSIC_BUTTON_HOME)))) {
393 keys |= 1 << GUI_INPUT_CANCEL;
394 }
395 if ((padkeys & PAD_BUTTON_LEFT)|| (wiiPad & WPAD_BUTTON_UP) ||
396 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_LEFT))) {
397 keys |= 1 << GUI_INPUT_LEFT;
398 }
399 if ((padkeys & PAD_BUTTON_RIGHT) || (wiiPad & WPAD_BUTTON_DOWN) ||
400 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_RIGHT))) {
401 keys |= 1 << GUI_INPUT_RIGHT;
402 }
403 if ((padkeys & PAD_BUTTON_UP) || (wiiPad & WPAD_BUTTON_RIGHT) ||
404 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_UP))) {
405 keys |= 1 << GUI_INPUT_UP;
406 }
407 if ((padkeys & PAD_BUTTON_DOWN) || (wiiPad & WPAD_BUTTON_LEFT) ||
408 ((ext == WPAD_EXP_CLASSIC) && (wiiPad & WPAD_CLASSIC_BUTTON_DOWN))) {
409 keys |= 1 << GUI_INPUT_DOWN;
410 }
411 return keys;
412}
413
414void _setRumble(struct GBARumble* rumble, int enable) {
415 UNUSED(rumble);
416 WPAD_Rumble(0, enable);
417}