1. libgd
  2. Untitled project
  3. gd-libgd

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mattias  committed 7037a60

- ws + cs

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  • Parent commits b2e277d
  • Branches GD-2.0

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File src/gd_io.c

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-
-
-/*
-   * io.c
-   *
-   * Implements the simple I/O 'helper' routines.
-   *
-   * Not really essential, but these routines were used extensively in GD,
-   * so they were moved here. They also make IOCtx calls look better...
-   *
-   * Written (or, at least, moved) 1999, Philip Warner.
-   *
+/* 
+ * io.c
+ *
+ * Implements the simple I/O 'helper' routines.
+ * Not really essential, but these routines were used extensively in GD,
+ * so they were moved here. They also make IOCtx calls look better...
+ * Written (or, at least, moved) 1999, Philip Warner.
  */
 
 #ifdef HAVE_CONFIG_H
-#include "config.h"
+	#include "config.h"
 #endif
 
 #include <math.h>
 #define IO_DBG(s)
 
 #define GD_IO_EOF_CHK(r) \
-	if (r == EOF) { \
+	if(r == EOF) { \
 		return 0; \
 	}
 
 /*
  * Write out a word to the I/O context pointer
  */
-void
-Putword (int w, gdIOCtx * ctx)
+void Putword(int w, gdIOCtx *ctx)
 {
-  unsigned char buf[2];
-  buf[0] = w & 0xff;
-  buf[1] = (w / 256) & 0xff;
-  (ctx->putBuf) (ctx, (char *) buf, 2);
+	unsigned char buf[2];
+	buf[0] = w & 0xff;
+	buf[1] = (w / 256) & 0xff;
+	(ctx->putBuf)(ctx, (char *)buf, 2);
 }
 
-void
-Putchar (int c, gdIOCtx * ctx)
+void Putchar(int c, gdIOCtx *ctx)
 {
-  (ctx->putC) (ctx, c & 0xff);
+	(ctx->putC)(ctx, c & 0xff);
 }
 
-void
-gdPutC (const unsigned char c, gdIOCtx * ctx)
+void gdPutC(const unsigned char c, gdIOCtx *ctx)
 {
-  (ctx->putC) (ctx, c);
+	(ctx->putC)(ctx, c);
 }
 
-void
-gdPutWord (int w, gdIOCtx * ctx)
+void gdPutWord (int w, gdIOCtx *ctx)
 {
-  IO_DBG (printf ("Putting word...\n"));
-  (ctx->putC) (ctx, (unsigned char) (w >> 8));
-  (ctx->putC) (ctx, (unsigned char) (w & 0xFF));
-  IO_DBG (printf ("put.\n"));
+	IO_DBG(printf("Putting word...\n"));
+	(ctx->putC)(ctx, (unsigned char)(w >> 8));
+	(ctx->putC)(ctx, (unsigned char)(w & 0xFF));
+	IO_DBG(printf("put.\n"));
 }
 
-void
-gdPutInt (int w, gdIOCtx * ctx)
+void gdPutInt (int w, gdIOCtx *ctx)
 {
-  IO_DBG (printf ("Putting int...\n"));
-  (ctx->putC) (ctx, (unsigned char) (w >> 24));
-  (ctx->putC) (ctx, (unsigned char) ((w >> 16) & 0xFF));
-  (ctx->putC) (ctx, (unsigned char) ((w >> 8) & 0xFF));
-  (ctx->putC) (ctx, (unsigned char) (w & 0xFF));
-  IO_DBG (printf ("put.\n"));
+	IO_DBG(printf("Putting int...\n"));
+	(ctx->putC)(ctx, (unsigned char) (w >> 24));
+	(ctx->putC)(ctx, (unsigned char) ((w >> 16) & 0xFF));
+	(ctx->putC)(ctx, (unsigned char) ((w >> 8) & 0xFF));
+	(ctx->putC)(ctx, (unsigned char) (w & 0xFF));
+	IO_DBG(printf("put.\n"));
 }
 
-int
-gdGetC (gdIOCtx * ctx)
+int gdGetC(gdIOCtx *ctx)
 {
-  return ((ctx->getC) (ctx));
+	return ((ctx->getC)(ctx));
 }
 
+int gdGetByte(int *result, gdIOCtx *ctx)
+{
+	int r;
+	
+	r = (ctx->getC)(ctx);
+	if(r == EOF) {
+		return 0;
+	}
 
+	*result = r;
 
-int
-gdGetByte (int *result, gdIOCtx * ctx)
-{
-  int r;
-  r = (ctx->getC) (ctx);
-  if (r == EOF)
-    {
-      return 0;
-    }
-  *result = r;
-  return 1;
+	return 1;
 }
 
-int
-gdGetWord (int *result, gdIOCtx * ctx)
+int gdGetWord(int *result, gdIOCtx *ctx)
 {
-  int r;
-  r = (ctx->getC) (ctx);
-  if (r == EOF)
-    {
-      return 0;
-    }
-  *result = r << 8;
-  r = (ctx->getC) (ctx);
-  if (r == EOF)
-    {
-      return 0;
-    }
-  *result += r;
-  return 1;
+	int r;
+
+	r = (ctx->getC)(ctx);
+	if(r == EOF) {
+		return 0;
+	}
+
+	*result = r << 8;
+
+	r = (ctx->getC)(ctx);
+	if(r == EOF) {
+		return 0;
+	}
+
+	*result += r;
+
+	return 1;
 }
 
-int
-gdGetWordLSB (int *result, gdIOCtx * ctx)
+int gdGetWordLSB(int *result, gdIOCtx *ctx)
 {
 	int high = 0, low = 0;
-	low = (ctx->getC) (ctx);
-	if (low == EOF) {
- 		return 0;
+
+	low = (ctx->getC)(ctx);
+	if(low == EOF) {
+		return 0;
 	}
 
-	high = (ctx->getC) (ctx);
-	if (high == EOF) {
- 		return 0;
+	high = (ctx->getC)(ctx);
+	if(high == EOF) {
+		return 0;
 	}
 
-	if (result) {
+	if(result) {
 		*result = (high << 8) | low;
 	}
 
 	return 1;
 }
 
-int
-gdGetInt (int *result, gdIOCtx * ctx)
+int gdGetInt(int *result, gdIOCtx *ctx)
 {
-  int r;
-  r = (ctx->getC) (ctx);
-  if (r == EOF)
-    {
-      return 0;
-    }
-  *result = r << 24;
-
-  r = (ctx->getC) (ctx);
-  if (r == EOF)
-    {
-      return 0;
-    }
-  *result += r << 16;
-
-  r = (ctx->getC) (ctx);
-  if (r == EOF)
-    {
-      return 0;
-    }
-  *result += r << 8;
-
-  r = (ctx->getC) (ctx);
-  if (r == EOF)
-    {
-      return 0;
-    }
-  *result += r;
-
-  return 1;
+	int r;
+
+	r = (ctx->getC)(ctx);
+	if(r == EOF) {
+		return 0;
+	}
+
+	*result = r << 24;
+
+	r = (ctx->getC)(ctx);
+	if(r == EOF) {
+		return 0;
+	}
+
+	*result += r << 16;
+
+	r = (ctx->getC)(ctx);
+	if(r == EOF) {
+		return 0;
+	}
+
+	*result += r << 8;
+
+	r = (ctx->getC)(ctx);
+	if(r == EOF) {
+		return 0;
+	}
+
+	*result += r;
+
+	return 1;
 }
 
-int
-gdGetIntLSB (int *result, gdIOCtx * ctx)
+int gdGetIntLSB(int *result, gdIOCtx *ctx)
 {
 	int c = 0, r = 0;
-	c = (ctx->getC) (ctx);
-	if (c == EOF) {
- 		return 0;
+
+	c = (ctx->getC)(ctx);
+	if(c == EOF) {
+		return 0;
 	}
+
 	r |= (c << 24);
 	r >>= 8;
 
-	c = (ctx->getC) (ctx);
-	if (c == EOF) {
- 		return 0;
+	c = (ctx->getC)(ctx);
+	if(c == EOF) {
+		return 0;
 	}
+
 	r |= (c << 24);
 	r >>= 8;
 
-	c = (ctx->getC) (ctx);
-	if (c == EOF) {
- 		return 0;
+	c = (ctx->getC)(ctx);
+	if(c == EOF) {
+		return 0;
 	}
+
 	r |= (c << 24);
 	r >>= 8;
 
-	c = (ctx->getC) (ctx);
-	if (c == EOF) {
- 		return 0;
+	c = (ctx->getC)(ctx);
+	if(c == EOF) {
+		return 0;
 	}
+
 	r |= (c << 24);
 
-	if (result) {
+	if(result) {
 		*result = r;
 	}
 
 	return 1;
 }
 
-int
-gdPutBuf (const void *buf, int size, gdIOCtx * ctx)
+int gdPutBuf(const void *buf, int size, gdIOCtx *ctx)
 {
-  IO_DBG (printf ("Putting buf...\n"));
-  return (ctx->putBuf) (ctx, buf, size);
-  IO_DBG (printf ("put.\n"));
+	IO_DBG(printf("Putting buf...\n"));
+	return (ctx->putBuf)(ctx, buf, size);
+	IO_DBG(printf("put.\n"));
 }
 
-int
-gdGetBuf (void *buf, int size, gdIOCtx * ctx)
+int gdGetBuf(void *buf, int size, gdIOCtx *ctx)
 {
-  return (ctx->getBuf) (ctx, buf, size);
+	return (ctx->getBuf)(ctx, buf, size);
 }
 
-
-int
-gdSeek (gdIOCtx * ctx, const int pos)
+int gdSeek(gdIOCtx *ctx, const int pos)
 {
-  IO_DBG (printf ("Seeking...\n"));
-  return ((ctx->seek) (ctx, pos));
-  IO_DBG (printf ("Done.\n"));
+	IO_DBG(printf("Seeking...\n"));
+	return ((ctx->seek)(ctx, pos));
+	IO_DBG(printf("Done.\n"));
 }
 
-long
-gdTell (gdIOCtx * ctx)
+long gdTell(gdIOCtx *ctx)
 {
-  IO_DBG (printf ("Telling...\n"));
-  return ((ctx->tell) (ctx));
-  IO_DBG (printf ("told.\n"));
+	IO_DBG(printf("Telling...\n"));
+	return ((ctx->tell)(ctx));
+	IO_DBG(printf("told.\n"));
 }