mirror of
https://github.com/wiidev/usbloadergx.git
synced 2024-11-26 21:24:16 +01:00
299 lines
9.4 KiB
C++
299 lines
9.4 KiB
C++
/****************************************************************************
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* USB Loader GX Team
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* buffer.cpp
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*
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* Loading covers in a background thread
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***************************************************************************/
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#include <gccore.h>
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#include <unistd.h>
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#include "libwiigui/gui.h"
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#include "usbloader/disc.h"
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#include "settings/cfg.h"
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#include "buffer.h"
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#include "main.h"
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#define BUFFERSIZE 9
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extern struct discHdr * gameList;
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extern u32 gameCnt;
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static lwp_t bufferthread = LWP_THREAD_NULL;
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static bool BufferHalt = true;
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static int loading = 0;
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static int offset = 0;
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static int direction = 1;
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static bool changed = false;
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static bool firstime = true;
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static GuiImageData NoCoverData(nocover_png);
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static GuiImageData * cover[BUFFERSIZE];
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static GuiImage * coverImg[BUFFERSIZE];
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static GuiImage * NoCover[BUFFERSIZE];
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GuiImage * ImageBuffer(int imagenumber)
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{
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if((BUFFERSIZE-1 > imagenumber) && direction >= 0) {
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return coverImg[imagenumber];
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}
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if((0 < imagenumber) && direction < 0) {
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return coverImg[imagenumber];
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}
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if(loading == BUFFERSIZE) {
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return coverImg[imagenumber];
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}
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return NoCover[imagenumber];
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}
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void LoadImages()
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{
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if(!changed || BufferHalt)
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return;
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char ID[4];
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char IDfull[7];
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char imgPath[200];
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for(u32 i = offset; (int) i < offset+BUFFERSIZE; i++) {
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struct discHdr *header;
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if(i > gameCnt-1)
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header = &gameList[i-gameCnt];
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else
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header = &gameList[i];
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snprintf (ID,sizeof(ID),"%c%c%c", header->id[0], header->id[1], header->id[2]);
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snprintf (IDfull,sizeof(IDfull),"%c%c%c%c%c%c", header->id[0], header->id[1], header->id[2],header->id[3], header->id[4], header->id[5]);
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snprintf(imgPath, sizeof(imgPath), "%s%s.png", Settings.covers_path, IDfull); //Load full id image
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//firsttime loading images into memory
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if(firstime) {
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if(coverImg[loading]) {
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delete coverImg[loading];
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coverImg[loading] = NULL;
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}
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if(cover[loading]) {
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delete cover[loading];
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cover[loading] = NULL;
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}
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cover[loading] = new GuiImageData(imgPath,0);
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if (!cover[loading]->GetImage()) {
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delete cover[loading];
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cover[loading] = NULL;
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snprintf(imgPath, sizeof(imgPath), "%s%s.png", Settings.covers_path, ID); //Load short id image
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cover[loading] = new GuiImageData(imgPath, 0);
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if (!cover[loading]->GetImage()) {
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delete cover[loading];
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cover[loading] = NULL;
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snprintf(imgPath, sizeof(imgPath), "%snoimage.png", Settings.covers_path); //Load no image
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cover[loading] = new GuiImageData(imgPath, nocover_png);
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}
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}
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coverImg[loading] = new GuiImage(cover[loading]);
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} else {
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if(direction >= 0) {
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if(loading < BUFFERSIZE-1) {
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if(coverImg[loading]) {
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delete coverImg[loading];
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coverImg[loading] = NULL;
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}
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if(loading == 0) {
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if(cover[loading]) {
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delete cover[loading];
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cover[loading] = NULL;
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}
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cover[loading] = new GuiImageData(NULL, 0);
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cover[loading] = cover[loading+1];
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} else {
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cover[loading] = cover[loading+1];
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}
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coverImg[loading] = new GuiImage(cover[loading]);
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} else {
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cover[loading] = new GuiImageData(imgPath,0);
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if (!cover[loading]->GetImage()) {
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delete cover[loading];
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cover[loading] = NULL;
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snprintf(imgPath, sizeof(imgPath), "%s%s.png", Settings.covers_path, ID); //Load short id image
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cover[loading] = new GuiImageData(imgPath, 0);
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if (!cover[loading]->GetImage()) {
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delete cover[loading];
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cover[loading] = NULL;
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snprintf(imgPath, sizeof(imgPath), "%snoimage.png", Settings.covers_path); //Load no image
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cover[loading] = new GuiImageData(imgPath, nocover_png);
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}
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}
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if(coverImg[loading]) {
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delete coverImg[loading];
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coverImg[loading] = NULL;
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}
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coverImg[loading] = new GuiImage(cover[loading]);
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}
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} else if(direction < 0) {
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if(BUFFERSIZE-loading-1 > 0) {
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if(coverImg[BUFFERSIZE-loading-1]) {
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delete coverImg[BUFFERSIZE-loading-1];
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coverImg[BUFFERSIZE-loading-1] = NULL;
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}
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if(BUFFERSIZE-loading-1 == BUFFERSIZE-1) {
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if(cover[BUFFERSIZE-loading-1]) {
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delete cover[BUFFERSIZE-loading-1];
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cover[BUFFERSIZE-loading-1] = NULL;
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}
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cover[BUFFERSIZE-loading-1] = new GuiImageData(NULL, 0);
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cover[BUFFERSIZE-loading-1] = cover[BUFFERSIZE-loading-1-1];
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} else {
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cover[BUFFERSIZE-loading-1] = cover[BUFFERSIZE-loading-1-1];
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coverImg[BUFFERSIZE-loading-1] = new GuiImage(cover[BUFFERSIZE-loading-1]);
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}
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} else {
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header = &gameList[offset];
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snprintf (ID,sizeof(ID),"%c%c%c", header->id[0], header->id[1], header->id[2]);
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snprintf (IDfull,sizeof(IDfull),"%c%c%c%c%c%c", header->id[0], header->id[1], header->id[2],header->id[3], header->id[4], header->id[5]);
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snprintf(imgPath, sizeof(imgPath), "%s%s.png", Settings.covers_path, IDfull); //Load full id image
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cover[0] = new GuiImageData(imgPath,0);
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if (!cover[0]->GetImage()) {
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delete cover[0];
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cover[0] = NULL;
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snprintf(imgPath, sizeof(imgPath), "%s%s.png", Settings.covers_path, ID); //Load short id image
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cover[0] = new GuiImageData(imgPath, 0);
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if (!cover[0]->GetImage()) {
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delete cover[0];
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cover[0] = NULL;
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snprintf(imgPath, sizeof(imgPath), "%snoimage.png", Settings.covers_path); //Load no image
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cover[0] = new GuiImageData(imgPath, nocover_png);
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}
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}
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if(coverImg[0]) {
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delete coverImg[0];
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coverImg[0] = NULL;
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}
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coverImg[0] = new GuiImage(cover[0]);
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}
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}
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}
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loading++;
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}
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loading = BUFFERSIZE;
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changed = false;
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firstime = false;
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}
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void NewOffset(int off, int d)
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{
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if(offset == off || loading < BUFFERSIZE)
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return;
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direction = d;
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offset = off;
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loading = 0;
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changed = true;
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}
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/****************************************************************************
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* HaltBuffer
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***************************************************************************/
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void HaltBufferThread()
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{
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BufferHalt = true;
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firstime = true;
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changed = true;
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loading = 0;
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offset = 0;
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direction = 0;
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// wait for thread to finish
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while(!LWP_ThreadIsSuspended(bufferthread))
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usleep(100);
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for(int i = 0; i < BUFFERSIZE; i++) {
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delete cover[i];
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cover[i] = NULL;
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delete coverImg[i];
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coverImg[i] = NULL;
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delete NoCover[i];
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NoCover[i] = NULL;
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}
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}
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/****************************************************************************
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* ResumeBufferThread
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***************************************************************************/
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void ResumeBufferThread(int offset)
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{
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BufferHalt = false;
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firstime = true;
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changed = true;
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loading = 0;
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offset = offset;
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direction = 0;
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for(u8 i = 0; i < BUFFERSIZE; i++) {
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if(NoCover[i] != NULL) {
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delete NoCover[i];
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NoCover[i] = NULL;
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}
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NoCover[i] = new GuiImage(&NoCoverData);
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}
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LWP_ResumeThread(bufferthread);
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}
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/*********************************************************************************
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* Bufferthread
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*********************************************************************************/
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static void * bufferinitcallback(void *arg)
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{
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while(1)
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{
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if(BufferHalt)
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LWP_SuspendThread(bufferthread);
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LoadImages();
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}
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return NULL;
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}
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/****************************************************************************
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* InitBufferThread with priority 50
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***************************************************************************/
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void InitBufferThread()
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{
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LWP_CreateThread(&bufferthread, bufferinitcallback, NULL, NULL, 0, 50);
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}
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/****************************************************************************
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* ShutdownThread
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***************************************************************************/
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void ShutdownBufferThread()
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{
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LWP_JoinThread (bufferthread, NULL);
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bufferthread = LWP_THREAD_NULL;
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}
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