ABelliqueux/nolibgs_hello_worlds
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Fix buffer pointers

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This commit is contained in:
ABelliqueux 2021-07-23 20:07:53 +02:00
parent 4b44c4bea9
commit d3e5674a77
1 changed files with 6 additions and 7 deletions
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13
hello_str/hello_str.c
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@ -124,8 +124,7 @@ int main() {
StSetStream(TRUECOL, 1, StrFileLength, 0, 0);
// Get the CD location of the STR file to play
if ( CdSearchFile(&STRfile, StrFileName) == 0 ) {
printf("File not found :%s\n", StrFileName);
//~ SetDispMask(1);
FntPrint("File not found :%s\n", StrFileName);
}
// Set the seek target position
CdControl(CdlSetloc, (u_char *)&STRfile.pos, 0);
@ -145,9 +144,9 @@ int main() {
// Main loop
while (1) {
u_long * curVLCptr = &VlcBuff[db][0];
// Set some pointers to the relevant buffer addresses
u_long * curVLCptr = &VlcBuff[!db][0];
u_short * curIMGptr = &ImgBuff[db][0];
// While end of str is not reached, play it
while (!endPlayback) {
// Use this area to draw the slices
@ -162,15 +161,15 @@ int main() {
// Dont try decoding if not data has been loaded from ring buffer
if ( frameAddr ){
// Begin decoding RLE-encoded MDEC image data
DecDCTin( &VlcBuff[db][0] , DCT_MODE);
DecDCTin( curVLCptr , DCT_MODE);
// Prepare to receive the decoded image data from the MDEC
while (curSlice.x < STR_POS_X + SCREENXRES * PPW) {
// Receive decoded data : a 16*ppw*240 px slice
DecDCTout( (u_long *) &ImgBuff[db][0], curSlice.w * curSlice.h / 2);
DecDCTout( (u_long *) curIMGptr, curSlice.w * curSlice.h / 2);
// Wait for transfer end
DecDCToutSync(1);
// Transfer data from main memory to VRAM
LoadImage(&curSlice, (u_long *) &ImgBuff[db][0]);
LoadImage(&curSlice, (u_long *) curIMGptr );
// Increment drawArea's X with slice width (16 or 24 pix)
curSlice.x += 16 * PPW;
}