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Use the POSIX file I/O functions instead of the high level C routines to

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save some overhead. Adapt to the new read conventions in modload.


git-svn-id: svn://svn.cc65.org/cc65/trunk@1549 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz
2002-11-20 14:22:26 +00:00
parent 9c7d2191aa
commit f98c3a0758
1 changed files with 5 additions and 12 deletions
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17
libsrc/tgi/tgi_load.c
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@@ -33,21 +33,14 @@
#include <stdio.h>
#include <string.h> #include <string.h>
#include <fcntl.h>
#include <modload.h> #include <modload.h>
#include <tgi.h> #include <tgi.h>
#include <tgi/tgi-kernel.h> #include <tgi/tgi-kernel.h>
static unsigned char ReadInputBlock (struct mod_ctrl* C, void* Buf, unsigned Size)
{
return (fread (Buf, 1, Size, C->callerdata) != Size);
}
void __fastcall__ tgi_load (unsigned char mode) void __fastcall__ tgi_load (unsigned char mode)
/* Install the matching driver for the given mode. Will just load the driver /* Install the matching driver for the given mode. Will just load the driver
* and check if loading was successul. Will not switch to gaphics mode. * and check if loading was successul. Will not switch to gaphics mode.
@@ -74,7 +67,7 @@ void __fastcall__ tgi_load_driver (const char* name)
static const unsigned char marker[4] = { 0x74, 0x67, 0x69, 0x00 }; static const unsigned char marker[4] = { 0x74, 0x67, 0x69, 0x00 };
static struct mod_ctrl ctrl = { static struct mod_ctrl ctrl = {
ReadInputBlock /* read_block */ read /* Read from disk */
}; };
unsigned Res; unsigned Res;
@@ -84,8 +77,8 @@ void __fastcall__ tgi_load_driver (const char* name)
} }
/* Now open the file */ /* Now open the file */
ctrl.callerdata = fopen (name, "r"); ctrl.callerdata = open (name, O_RDONLY);
if (ctrl.callerdata == 0) { if (ctrl.callerdata < 0) {
tgi_error = TGI_ERR_CANNOT_LOAD; tgi_error = TGI_ERR_CANNOT_LOAD;
return; return;
} }
@@ -94,7 +87,7 @@ void __fastcall__ tgi_load_driver (const char* name)
Res = mod_load (&ctrl); Res = mod_load (&ctrl);
/* Close the input file */ /* Close the input file */
fclose (ctrl.callerdata); close (ctrl.callerdata);
/* Check the return code */ /* Check the return code */
if (Res == MLOAD_OK) { if (Res == MLOAD_OK) {