forked from cyxx/blues
-
Notifications
You must be signed in to change notification settings - Fork 0
/
sys_psp.c
428 lines (356 loc) · 11.2 KB
/
sys_psp.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
#include <pspaudio.h>
#include <pspaudiolib.h>
#include <pspctrl.h>
#include <pspdisplay.h>
#include <pspgu.h>
#include <pspkernel.h>
#include <pspsdk.h>
#include <malloc.h>
#include "sys.h"
PSP_MODULE_INFO("Blues Brothers", 0, 1, 0);
PSP_MAIN_THREAD_ATTR(THREAD_ATTR_USER);
static uint32_t _buttons;
static sys_audio_cb _audio_proc;
static void *_audio_param;
static int _audio_channel;
static SceUID _audio_mutex;
static uint32_t _fb_offset;
// static const int AUDIO_FREQ = 44100;
static const int AUDIO_SAMPLES_COUNT = 2048;
static const int SCREEN_W = 480;
static const int SCREEN_H = 272;
static const int SCREEN_PITCH = 512;
static uint32_t __attribute__((aligned(16))) _dlist[262144];
static uint32_t __attribute__((aligned(16))) _clut[256];
#define MAX_SPRITES 256
struct vertex_t {
int16_t u, v;
int16_t x, y, z;
};
struct spritetexture_t {
int w, h;
uint8_t *bitmap;
int count;
struct sys_rect_t *r;
};
static struct spritetexture_t _spritetextures[RENDER_SPR_COUNT];
struct sprite_t {
struct vertex_t v[2];
int tex;
};
static struct sprite_t _sprites[MAX_SPRITES];
static int _sprites_count;
static void print_log(FILE *fp, const char *s) {
static bool first_open = false;
if (!first_open) {
fp = fopen("stdout.txt", "w");
first_open = true;
} else {
fp = fopen("stdout.txt", "a");
}
fprintf(fp, "%s\n", s);
fclose(fp);
}
static int exit_callback(int arg1, int arg2, void *common) {
g_sys.input.quit = true;
return 0;
}
static int callback_thread(SceSize args, void *argp) {
const int cb = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
sceKernelRegisterExitCallback(cb);
sceKernelSleepThreadCB();
return 0;
}
static void psp_init() {
_buttons = 0;
memset(&_audio_proc, 0, sizeof(_audio_proc));
_audio_channel = -1;
_audio_mutex = 0;
const int th = sceKernelCreateThread("update_thread", callback_thread, 0x11, 0xFA0, 0, 0);
if (th >= 0) {
sceKernelStartThread(th, 0, 0);
}
sceKernelDcacheWritebackAll();
sceCtrlSetSamplingCycle(0);
sceCtrlSetSamplingMode(PSP_CTRL_MODE_ANALOG);
}
static void psp_fini() {
sceGuTerm();
sceKernelExitGame();
}
static void psp_set_screen_size(int w, int h, const char *caption, int scale, const char *filter, bool fullscreen) {
sceGuInit();
sceGuStart(GU_DIRECT, _dlist);
const int fbSize = SCREEN_PITCH * SCREEN_H * sizeof(uint32_t); // rgba
uint32_t vramOffset = 0;
sceGuDrawBuffer(GU_PSM_8888, (void *)vramOffset, SCREEN_PITCH); vramOffset += fbSize;
sceGuDispBuffer(SCREEN_W, SCREEN_H, (void *)vramOffset, SCREEN_PITCH); vramOffset += fbSize;
sceGuOffset(2048 - (SCREEN_W / 2), 2048 - (SCREEN_H / 2));
sceGuViewport(2048, 2048, SCREEN_W, SCREEN_H);
sceGuScissor(0, 0, SCREEN_W, SCREEN_H);
sceGuEnable(GU_SCISSOR_TEST);
sceGuEnable(GU_TEXTURE_2D);
sceGuDisable(GU_DEPTH_TEST);
sceGuClearColor(0);
sceGuClear(GU_COLOR_BUFFER_BIT);
sceGuFinish();
sceGuSync(GU_SYNC_WHAT_DONE, GU_SYNC_FINISH);
sceDisplayWaitVblankStart();
_fb_offset = (uint32_t)sceGuSwapBuffers();
sceGuDisplay(GU_TRUE);
for (int i = 0; i < 256; ++i) {
_clut[i] = GU_RGBA(0, 0, 0, 255);
}
sceKernelDcacheWritebackRange(_clut, sizeof(_clut));
}
static void psp_set_screen_palette(const uint8_t *colors, int offset, int count, int depth) {
const int shift = 8 - depth;
for (int i = 0; i < count; ++i) {
int r = *colors++;
int g = *colors++;
int b = *colors++;
if (shift != 0) {
r = (r << shift) | (r >> (depth - shift));
g = (g << shift) | (g >> (depth - shift));
b = (b << shift) | (b >> (depth - shift));
}
_clut[offset + i] = GU_RGBA(r, g, b, 255);
}
sceKernelDcacheWritebackRange(_clut, sizeof(_clut));
}
static uint32_t convert_amiga_color(uint16_t color) {
uint8_t r = (color >> 8) & 15;
r |= r << 4;
uint8_t g = (color >> 4) & 15;
g |= g << 4;
uint8_t b = color & 15;
b |= b << 4;
return GU_RGBA(r, g, b, 255);
}
static void psp_set_palette_amiga(const uint16_t *colors, int offset) {
for (int i = 0; i < 16; ++i) {
_clut[offset + i] = convert_amiga_color(colors[i]);
}
sceKernelDcacheWritebackRange(_clut, sizeof(_clut));
}
static void psp_set_copper_bars(const uint16_t *data) {
}
static void psp_set_palette_color(int i, const uint8_t *colors) {
_clut[i] = GU_RGBA(colors[0], colors[1], colors[2], 255);
sceKernelDcacheWritebackRange(_clut, sizeof(_clut));
}
static void psp_fade_in_palette() {
sceDisplayWaitVblankStart();
_fb_offset = (uint32_t)sceGuSwapBuffers();
}
static void psp_fade_out_palette() {
uint32_t *buffer = (uint32_t *)(((uint8_t *)sceGeEdramGetAddr()) + _fb_offset);
for (int y = 0; y < SCREEN_H; ++y) {
memset(buffer, 0, SCREEN_W * sizeof(uint32_t));
buffer += SCREEN_PITCH;
}
}
static void psp_transition_screen(enum sys_transition_e type, bool open) {
}
static void psp_copy_bitmap(const uint8_t *p, int w, int h) {
const int dx = (SCREEN_W - w) / 2;
const int dy = (SCREEN_H - h) / 2;
uint32_t *buffer = (uint32_t *)(((uint8_t *)sceGeEdramGetAddr()) + _fb_offset);
for (int y = 0; y < h; ++y) {
for (int x = 0; x < w; ++x) {
buffer[(dy + y) * SCREEN_PITCH + (dx + x)] = _clut[*p++];
}
}
}
static void psp_update_screen() {
sceGuStart(GU_DIRECT, _dlist);
sceGuClutMode(GU_PSM_8888, 0, 0xFF, 0);
sceGuClutLoad(256 / 8, _clut);
sceGuTexMode(GU_PSM_T8, 0, 0, 0);
sceGuTexFunc(GU_TFX_REPLACE, GU_TCC_RGB);
sceGuTexFilter(GU_NEAREST, GU_NEAREST);
sceGuEnable(GU_COLOR_TEST);
sceGuColorFunc(GU_NOTEQUAL, _clut[0], 0xFFFFFF);
int prev_tex = -1;
for (int i = 0; i < _sprites_count; ++i) {
struct sprite_t *spr = &_sprites[i];
if (prev_tex != spr->tex) {
struct spritetexture_t *st = &_spritetextures[spr->tex];
sceGuTexImage(0, st->w, st->h, st->w, st->bitmap);
prev_tex = spr->tex;
}
struct vertex_t *v = (struct vertex_t *)sceGuGetMemory(2 * sizeof(struct vertex_t));
v[0] = spr->v[0];
v[1] = spr->v[1];
sceGuDrawArray(GU_SPRITES, GU_TEXTURE_16BIT | GU_VERTEX_16BIT | GU_TRANSFORM_2D, 2, 0, v);
}
sceGuDisable(GU_COLOR_TEST);
sceGuFinish();
sceGuSync(GU_SYNC_WHAT_DONE, GU_SYNC_FINISH);
sceDisplayWaitVblankStart();
_fb_offset = (uint32_t)sceGuSwapBuffers();
}
static void psp_shake_screen(int dx, int dy) {
sceGuOffset(2048 - (SCREEN_W / 2) + dx, 2048 - (SCREEN_H / 2) + dy);
}
static void psp_process_events() {
g_sys.input.direction = 0;
static const struct {
int psp;
int sys;
} mapping[] = {
{ PSP_CTRL_UP, INPUT_DIRECTION_UP },
{ PSP_CTRL_RIGHT, INPUT_DIRECTION_RIGHT },
{ PSP_CTRL_DOWN, INPUT_DIRECTION_DOWN },
{ PSP_CTRL_LEFT, INPUT_DIRECTION_LEFT },
{ 0, 0 }
};
SceCtrlData data;
sceCtrlPeekBufferPositive(&data, 1);
for (int i = 0; mapping[i].psp != 0; ++i) {
if (data.Buttons & mapping[i].psp) {
g_sys.input.direction |= mapping[i].sys;
}
}
static const int lxMargin = 64;
if (data.Lx < 127 - lxMargin) {
g_sys.input.direction |= INPUT_DIRECTION_LEFT;
} else if (data.Lx > 127 + lxMargin) {
g_sys.input.direction |= INPUT_DIRECTION_RIGHT;
}
static const int lyMargin = 64;
if (data.Ly < 127 - lyMargin) {
g_sys.input.direction |= INPUT_DIRECTION_UP;
} else if (data.Ly > 127 + lyMargin) {
g_sys.input.direction |= INPUT_DIRECTION_DOWN;
}
// PSP_CTRL_CROSS
g_sys.input.space = (data.Buttons & PSP_CTRL_SQUARE) != 0;
g_sys.input.jump = (data.Buttons & PSP_CTRL_CIRCLE) != 0;
// PSP_CTRL_TRIANGLE
const uint32_t mask = data.Buttons ^ _buttons;
if ((data.Buttons & PSP_CTRL_LTRIGGER) & mask) {
}
if ((data.Buttons & PSP_CTRL_RTRIGGER) & mask) {
}
_buttons = data.Buttons;
}
static void psp_sleep(int duration) {
sceKernelDelayThread(duration * 1000);
}
static uint32_t psp_get_timestamp() {
struct timeval tv;
sceKernelLibcGettimeofday(&tv, 0);
return tv.tv_sec * 1000 + tv.tv_usec / 1000;
}
static void psp_lock_audio() {
sceKernelWaitSema(_audio_mutex, 1, 0);
}
static void psp_unlock_audio() {
sceKernelSignalSema(_audio_mutex, 1);
}
static void audio_callback(void *buf, unsigned int samples, void *param) { // 44100hz S16 stereo
int16_t buf22khz[samples];
memset(buf22khz, 0, sizeof(buf22khz));
psp_lock_audio();
_audio_proc(_audio_param, (uint8_t *)buf22khz, samples);
psp_unlock_audio();
uint32_t *buf44khz = (uint32_t *)buf;
static int16_t prev;
for (unsigned int i = 0; i < samples; ++i) {
const int16_t current = buf22khz[i];
buf44khz[i] = (current << 16) | (((prev + current) >> 1) & 0xFFFF);
prev = current;
}
}
static void psp_start_audio(sys_audio_cb callback, void *param) {
// sceAudioSetFrequency(AUDIO_FREQ);
pspAudioInit();
_audio_proc = callback;
_audio_param = param;
_audio_mutex = sceKernelCreateSema("audio_lock", 0, 1, 1, 0);
_audio_channel = sceAudioChReserve(PSP_AUDIO_NEXT_CHANNEL, AUDIO_SAMPLES_COUNT, PSP_AUDIO_FORMAT_STEREO);
pspAudioSetChannelCallback(_audio_channel, audio_callback, 0);
}
static void psp_stop_audio() {
sceAudioChRelease(_audio_channel);
sceKernelDeleteSema(_audio_mutex);
pspAudioEnd();
}
static void render_load_sprites(int spr_type, int count, const struct sys_rect_t *r, const uint8_t *data, int w, int h, uint8_t color_key, bool update_pal) {
struct spritetexture_t *st = &_spritetextures[spr_type];
st->r = (struct sys_rect_t *)malloc(count * sizeof(struct sys_rect_t));
if (st->r) {
memcpy(st->r, r, count * sizeof(struct sys_rect_t));
st->count = count;
}
st->bitmap = (uint8_t *)memalign(16, w * h);
if (st->bitmap) {
memcpy(st->bitmap, data, w * h);
st->w = w;
st->h = h;
sceKernelDcacheWritebackRange(st->bitmap, w * h);
}
}
static void render_unload_sprites(int spr_type) {
struct spritetexture_t *st = &_spritetextures[spr_type];
if (st->r) {
free(st->r);
}
if (st->bitmap) {
free(st->bitmap);
}
memset(st, 0, sizeof(struct spritetexture_t));
}
static void render_add_sprite(int spr_type, int frame, int x, int y, int xflip) {
if (_sprites_count < MAX_SPRITES) {
struct sprite_t *spr = &_sprites[_sprites_count];
struct vertex_t *v = spr->v;
struct sys_rect_t *r = &_spritetextures[spr_type].r[frame];
if (!xflip) {
v[0].u = r->x; v[1].u = r->x + r->w;
} else {
v[0].u = r->x + r->w; v[1].u = r->x;
}
v[0].v = r->y; v[1].v = r->y + r->h;
v[0].x = x; v[1].x = x + r->w;
v[0].y = y; v[1].y = y + r->h;
v[0].z = 0; v[1].z = 0;
spr->tex = spr_type;
++_sprites_count;
}
}
static void render_clear_sprites() {
_sprites_count = 0;
}
static void render_set_sprites_clipping_rect(int x, int y, int w, int h) {
sceGuScissor(x, y, w, h);
}
struct sys_t g_sys = {
.init = psp_init,
.fini = psp_fini,
.set_screen_size = psp_set_screen_size,
.set_screen_palette = psp_set_screen_palette,
.set_palette_amiga = psp_set_palette_amiga,
.set_copper_bars = psp_set_copper_bars,
.set_palette_color = psp_set_palette_color,
.fade_in_palette = psp_fade_in_palette,
.fade_out_palette = psp_fade_out_palette,
.copy_bitmap = psp_copy_bitmap,
.update_screen = psp_update_screen,
.shake_screen = psp_shake_screen,
.transition_screen = psp_transition_screen,
.process_events = psp_process_events,
.sleep = psp_sleep,
.get_timestamp = psp_get_timestamp,
.start_audio = psp_start_audio,
.stop_audio = psp_stop_audio,
.lock_audio = psp_lock_audio,
.unlock_audio = psp_unlock_audio,
.render_load_sprites = render_load_sprites,
.render_unload_sprites = render_unload_sprites,
.render_add_sprite = render_add_sprite,
.render_clear_sprites = render_clear_sprites,
.render_set_sprites_clipping_rect = render_set_sprites_clipping_rect,
.print_log = print_log,
};