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Make psvDebugScreen usable from prx #44

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Make psvDebugScreen usable from prx #44

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34 changes: 24 additions & 10 deletions common/debugScreen.h
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Original file line number Diff line number Diff line change
Expand Up @@ -35,12 +35,17 @@ static uint32_t defaultBg = 0xFF000000, colorBg = 0xFF000000;

#ifdef __vita__
#include <psp2/display.h>
#include <psp2/kernel/clib.h>
#include <psp2/kernel/sysmem.h>
#include <psp2/kernel/threadmgr.h>
static void* base; // pointer to frame buffer
#ifdef PSVDEBUG_USE_LIBC_VSNPRINTF
#define sceClibVsnprintf vsnprintf
#endif
#else
#define sceKernelLockMutex(m,v,x) m=v
#define sceKernelUnlockMutex(m,v) m=v
#define sceClibVsnprintf vsnprintf
static char base[SCREEN_FB_WIDTH * SCREEN_HEIGHT * 4];
#endif

Expand Down Expand Up @@ -90,27 +95,36 @@ static size_t psvDebugScreenEscape(const unsigned char *str) {
}
return 0;
}

int psvDebugScreenInit() {
#ifdef NO_psvDebugScreenInit
return 0;/* avoid linking non-initializer (prx) with sceDisplay/sceMemory */
#else
#ifdef __vita__
mutex = sceKernelCreateMutex("log_mutex", 0, 0, NULL);
SceUID displayblock = sceKernelAllocMemBlock("display", SCE_KERNEL_MEMBLOCK_TYPE_USER_CDRAM_RW, SCREEN_FB_SIZE, NULL);
sceKernelGetMemBlockBase(displayblock, (void**)&base);
SceDisplayFrameBuf frame = { sizeof(frame), base, SCREEN_FB_WIDTH, 0, SCREEN_WIDTH, SCREEN_HEIGHT};
return sceDisplaySetFrameBuf(&frame, SCE_DISPLAY_SETBUF_NEXTFRAME);
// First check if the FrameBuffer is already init (by the prx loader)
SceDisplayFrameBuf getFrame = { sizeof(getFrame) };
sceDisplayGetFrameBuf(&getFrame, SCE_DISPLAY_SETBUF_NEXTFRAME);
// If not, init the FrameBuffer ourself
if(!(base = getFrame.base)) {
SceUID displayblock = sceKernelAllocMemBlock("display", SCE_KERNEL_MEMBLOCK_TYPE_USER_CDRAM_RW, SCREEN_FB_SIZE, NULL);
sceKernelGetMemBlockBase(displayblock, (void**)&base);
SceDisplayFrameBuf setFrame = { sizeof(setFrame), base, SCREEN_FB_WIDTH, 0, SCREEN_WIDTH, SCREEN_HEIGHT};
sceDisplaySetFrameBuf(&setFrame, SCE_DISPLAY_SETBUF_NEXTFRAME);
}
#endif
return 0;
}

int psvDebugScreenPuts(const char * _text) {
if(!base)psvDebugScreenInit();
const unsigned char*text = (const unsigned char*)_text;
int bytes_per_glyph = (F.width * F.height) / 8;
sceKernelLockMutex(mutex, 1, NULL);
int c;
int c,k;
for (c = 0; text[c] ; c++) {
unsigned char t = text[c];
if (t == '\t') {
coordX += SCREEN_TAB_W - coordX % SCREEN_TAB_W;
//__aeabi_i(div)mod unavailable in -nostdlib => modulo manualy
for(k = 0;coordX - k*SCREEN_TAB_W >= SCREEN_TAB_W; ++k);
coordX += SCREEN_TAB_W - (coordX - k*SCREEN_TAB_W);
continue;
}
if (coordX + F.width > SCREEN_WIDTH) {
Expand Down Expand Up @@ -159,7 +173,7 @@ int psvDebugScreenPrintf(const char *format, ...) {

va_list opt;
va_start(opt, format);
int ret = vsnprintf(buf, sizeof(buf), format, opt);
int ret = sceClibVsnprintf(buf, sizeof(buf), format, opt);
psvDebugScreenPuts(buf);
va_end(opt);

Expand Down