thirdparty/scummvm
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SCI: Merge kernelDerefCharPtr and kernelDerefString and change it from a macro to a function

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svn-id: r44081
This commit is contained in:
Max Horn 2009-09-14 12:59:42 +00:00
parent 53450cc2e1
commit c00edfb64f
5 changed files with 21 additions and 18 deletions
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8
engines/sci/engine/kernel.cpp
View file

@ -742,11 +742,15 @@ static void *_kernel_dereference_pointer(SegManager *segMan, reg_t pointer, int
}
byte *kernelDerefBulkPtr(SegManager *segMan, reg_t pointer, int entries) {
return (byte*)_kernel_dereference_pointer(segMan, pointer, entries, 1);
return (byte *)_kernel_dereference_pointer(segMan, pointer, entries, 1);
}
reg_t *kernelDerefRegPtr(SegManager *segMan, reg_t pointer, int entries) {
return (reg_t*)_kernel_dereference_pointer(segMan, pointer, entries, sizeof(reg_t));
return (reg_t *)_kernel_dereference_pointer(segMan, pointer, entries, sizeof(reg_t));
}
char *kernelDerefString(SegManager *segMan, reg_t pointer, int entries) {
return (char *)_kernel_dereference_pointer(segMan, pointer, entries, 1);
}
void Kernel::setDefaultKernelNames() {

3
engines/sci/engine/kernel.h
View file

@ -238,8 +238,7 @@ char *kernel_lookup_text(EngineState *s, reg_t address, int index);
*/
reg_t *kernelDerefRegPtr(SegManager *segMan, reg_t pointer, int entries);
byte *kernelDerefBulkPtr(SegManager *segMan, reg_t pointer, int entries);
#define kernelDerefCharPtr(state, pointer, entries) ((char*)kernelDerefBulkPtr(state, pointer, entries))
#define kernelDerefString(state, pointer) ((char*)kernelDerefBulkPtr(state, pointer, 0))
char *kernelDerefString(SegManager *segMan, reg_t pointer, int entries = 0);
/******************** Priority macros/functions ********************/
/**

2
engines/sci/engine/kfile.cpp
View file

@ -811,7 +811,7 @@ reg_t kFileIO(EngineState *s, int, int argc, reg_t *argv) {
case K_FILEIO_WRITE_STRING : {
int handle = argv[1].toUint16();
int size = argv[3].toUint16();
char *buf = kernelDerefCharPtr(s->segMan, argv[2], size);
char *buf = kernelDerefString(s->segMan, argv[2], size);
debug(3, "K_FILEIO_WRITE_STRING(%d,%d)", handle, size);
// FIXME: What is the difference between K_FILEIO_WRITE_STRING and

6
engines/sci/engine/kgraphics.cpp
View file

@ -602,14 +602,14 @@ reg_t kGraph(EngineState *s, int, int argc, reg_t *argv) {
reg_t kTextSize(EngineState *s, int, int argc, reg_t *argv) {
int width, height;
char *text = argv[1].segment ? (char *) kernelDerefBulkPtr(s->segMan, argv[1], 0) : NULL;
char *text = argv[1].segment ? kernelDerefString(s->segMan, argv[1]) : NULL;
const char *sep = NULL;
reg_t *dest = kernelDerefRegPtr(s->segMan, argv[0], 4);
int maxwidth = (argc > 3) ? argv[3].toUint16() : 0;
int font_nr = argv[2].toUint16();
if ((argc > 4) && (argv[4].segment))
sep = (const char *)kernelDerefBulkPtr(s->segMan, argv[4], 0);
sep = kernelDerefString(s->segMan, argv[4]);
if (maxwidth < 0)
maxwidth = 0;
@ -3135,7 +3135,7 @@ reg_t kDisplay(EngineState *s, int, int argc, reg_t *argv) {
if (textp.segment) {
argpt = 1;
text = (char *)kernelDerefBulkPtr(s->segMan, textp, 0);
text = kernelDerefString(s->segMan, textp);
} else {
argpt = 2;
text = kernel_lookup_text(s, textp, index);

20
engines/sci/engine/kstring.cpp
View file

@ -44,7 +44,7 @@ char *kernel_lookup_text(EngineState *s, reg_t address, int index) {
Resource *textres;
if (address.segment)
return (char *)kernelDerefBulkPtr(s->segMan, address, 0);
return kernelDerefString(s->segMan, address);
else {
int textlen;
int _index = index;
@ -87,7 +87,7 @@ reg_t kSaid(EngineState *s, int, int argc, reg_t *argv) {
if (!heap_said_block.segment)
return NULL_REG;
said_block = (byte *) kernelDerefBulkPtr(s->segMan, heap_said_block, 0);
said_block = (byte *)kernelDerefBulkPtr(s->segMan, heap_said_block, 0);
if (!said_block) {
warning("Said on non-string, pointer %04x:%04x", PRINT_REG(heap_said_block));
@ -287,8 +287,8 @@ reg_t kStrCmp(EngineState *s, int, int argc, reg_t *argv) {
reg_t kStrCpy(EngineState *s, int, int argc, reg_t *argv) {
char *dest = (char *) kernelDerefBulkPtr(s->segMan, argv[0], 0);
char *src = (char *) kernelDerefBulkPtr(s->segMan, argv[1], 0);
char *dest = kernelDerefString(s->segMan, argv[0]);
char *src = kernelDerefString(s->segMan, argv[1]);
if (!dest) {
warning("Attempt to strcpy TO invalid pointer %04x:%04x",
@ -352,7 +352,7 @@ static int is_print_str(const char *str) {
reg_t kStrAt(EngineState *s, int, int argc, reg_t *argv) {
byte *dest = (byte *)kernelDerefBulkPtr(s->segMan, argv[0], 0);
char *dest = kernelDerefString(s->segMan, argv[0]);
reg_t *dest2;
if (!dest) {
@ -380,7 +380,7 @@ reg_t kStrAt(EngineState *s, int, int argc, reg_t *argv) {
int odd = !(argv[1].toUint16() & 1);
#endif
dest2 = ((reg_t *) dest) + (argv[1].toUint16() / 2);
dest = ((byte *)(&dest2->offset)) + odd;
dest = ((char *)(&dest2->offset)) + odd;
} else
dest += argv[1].toUint16();
@ -420,7 +420,7 @@ reg_t kReadNumber(EngineState *s, int, int argc, reg_t *argv) {
reg_t kFormat(EngineState *s, int, int argc, reg_t *argv) {
int *arguments;
reg_t dest = argv[0];
char *target = (char *) kernelDerefBulkPtr(s->segMan, dest, 0);
char *target = kernelDerefString(s->segMan, dest);
reg_t position = argv[1]; /* source */
int index = argv[2].toUint16();
char *source;
@ -740,7 +740,7 @@ reg_t kMessage(EngineState *s, int, int argc, reg_t *argv) {
if (!bufferReg.isNull()) {
int len = str.size() + 1;
buffer = kernelDerefCharPtr(s->segMan, bufferReg, len);
buffer = kernelDerefString(s->segMan, bufferReg, len);
if (buffer) {
strcpy(buffer, str.c_str());
@ -748,7 +748,7 @@ reg_t kMessage(EngineState *s, int, int argc, reg_t *argv) {
warning("Message: buffer %04x:%04x invalid or too small to hold the following text of %i bytes: '%s'", PRINT_REG(bufferReg), len, str.c_str());
// Set buffer to empty string if possible
buffer = kernelDerefCharPtr(s->segMan, bufferReg, 1);
buffer = kernelDerefString(s->segMan, bufferReg, 1);
if (buffer)
*buffer = 0;
}
@ -821,7 +821,7 @@ reg_t kStrSplit(EngineState *s, int, int argc, reg_t *argv) {
Common::String str = s->strSplit(format, sep);
// Make sure target buffer is large enough
char *buf = kernelDerefCharPtr(s->segMan, argv[0], str.size() + 1);
char *buf = kernelDerefString(s->segMan, argv[0], str.size() + 1);
if (buf) {
strcpy(buf, str.c_str());