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Fix crash on fopen error

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Fixed an issue whereby the return value of fopen was not checked for a
NULL pointer causing a crash. This error occurred when opening a file
with the character "é", when it was the first file opened when starting
the program.
Error messages now report the errno string.
Added preliminary stream support.

Signed-off-by: Mahyar Koshkouei <deltabeard@users.noreply.github.com>
This commit is contained in:
Mahyar Koshkouei
2016-12-03 13:54:08 +00:00
parent 856034ad63
commit d3df928cae
1 changed files with 40 additions and 8 deletions
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48
source/main.c
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@@ -9,6 +9,7 @@
#include <3ds.h>
#include <dirent.h>
#include <errno.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
@@ -16,7 +17,7 @@
#include "main.h"
#define BUFFER_SIZE 8 * 1024 * 1024
#define BUFFER_SIZE 1 * 1024 * 1024
#define AUDIO_FOLDER "sdmc:/MUSIC/"
#define CHANNEL 0x08
@@ -29,8 +30,8 @@
__func__, __VA_ARGS__); } while (0)
#define err_print(err) \
do { fprintf(stderr, "Error %d:%s(): %s", __LINE__, __func__, \
err); } while (0)
do { fprintf(stderr, "\nError %d:%s(): %s %s\n", __LINE__, __func__, \
err, strerror(errno)); } while (0)
int main(int argc, char **argv)
{
@@ -156,6 +157,7 @@ int playWav(const char *wav)
u32 byterate; // TODO: Not used.
u32 blockalign;
u32* buffer1 = NULL;
u32* buffer2 = NULL;
off_t size;
off_t buffer_size;
ndspWaveBuf waveBuf[2];
@@ -168,7 +170,15 @@ int playWav(const char *wav)
ndspSetOutputMode(NDSP_OUTPUT_STEREO);
fseek(file, 0, SEEK_END);
if(file == NULL)
{
err_print("Opening file failed.");
goto out;
}
if(fseek(file, 0, SEEK_END) != 0)
err_print("fseek failure.");
size = ftell(file);
fseek(file, 0, SEEK_SET);
@@ -178,6 +188,7 @@ int playWav(const char *wav)
buffer_size = size;
buffer1 = (u32*) linearAlloc(buffer_size);
buffer2 = (u32*) linearAlloc(buffer_size);
if(fread(header, 1, 44, file) == 0)
{
@@ -235,20 +246,24 @@ int playWav(const char *wav)
goto out;
}
/* TODO: Use return value of fread to get number of samples.
* TODO: Move all of this in the while loop.
*/
fread(buffer1, 1, buffer_size, file);
fread(buffer2, 1, buffer_size, file);
ndspChnReset(CHANNEL);
ndspChnWaveBufClear(CHANNEL);
ndspChnSetInterp(CHANNEL, NDSP_INTERP_NONE);
ndspChnSetInterp(CHANNEL, NDSP_INTERP_LINEAR);
ndspChnSetRate(CHANNEL, sample);
ndspChnSetFormat(CHANNEL, bitness);
memset(waveBuf, 0, sizeof(waveBuf));
waveBuf[0].nsamples = buffer_size / blockalign;
waveBuf[0].data_vaddr = &buffer1[0];
//waveBuf[1].nsamples = buffer_size / bitness / 2;
//waveBuf[1].data_vaddr = &buffer1[buffer_size / 2];
waveBuf[1].nsamples = buffer_size / blockalign;
waveBuf[1].data_vaddr = &buffer2[0];
ndspChnWaveBufAdd(CHANNEL, &waveBuf[0]);
//ndspChnWaveBufAdd(CHANNEL, &waveBuf[1]);
ndspChnWaveBufAdd(CHANNEL, &waveBuf[1]);
DSP_FlushDataCache(buffer1, buffer_size);
printf("Playing %s\n", wav);
@@ -279,6 +294,22 @@ int playWav(const char *wav)
debug_print("Pos: %lx of %lx\n", ndspChnGetSamplePos(CHANNEL),
buffer_size / bitness);
}
if(waveBuf[0].status == NDSP_WBUF_DONE)
{
fread(buffer1, 1, buffer_size, file);
ndspChnWaveBufAdd(CHANNEL, &waveBuf[0]);
}
if(waveBuf[1].status == NDSP_WBUF_DONE)
{
fread(buffer2, 1, buffer_size, file);
ndspChnWaveBufAdd(CHANNEL, &waveBuf[1]);
}
// TODO: Remove this printf.
printf("\rBuf0: %s, Buf1: %s.", waveBuf[0].status == NDSP_WBUF_QUEUED ? "Queued" : "Playing",
waveBuf[1].status == NDSP_WBUF_QUEUED ? "Queued" : "Playing");
}
debug_print("Pos: %lx\n", ndspChnGetSamplePos(CHANNEL));
@@ -292,5 +323,6 @@ out:
ndspExit();
fclose(file);
linearFree(buffer1);
linearFree(buffer2);
return 0;
}