--- /dev/null
+/*****************************************************************************/
+/* */
+/* c.c */
+/* */
+/* C output for the sp65 sprite and bitmap utility */
+/* */
+/* */
+/* */
+/* (C) 2012, Ullrich von Bassewitz */
+/* Roemerstrasse 52 */
+/* D-70794 Filderstadt */
+/* EMail: uz@cc65.org */
+/* */
+/* */
+/* This software is provided 'as-is', without any expressed or implied */
+/* warranty. In no event will the authors be held liable for any damages */
+/* arising from the use of this software. */
+/* */
+/* Permission is granted to anyone to use this software for any purpose, */
+/* including commercial applications, and to alter it and redistribute it */
+/* freely, subject to the following restrictions: */
+/* */
+/* 1. The origin of this software must not be misrepresented; you must not */
+/* claim that you wrote the original software. If you use this software */
+/* in a product, an acknowledgment in the product documentation would be */
+/* appreciated but is not required. */
+/* 2. Altered source versions must be plainly marked as such, and must not */
+/* be misrepresented as being the original software. */
+/* 3. This notice may not be removed or altered from any source */
+/* distribution. */
+/* */
+/*****************************************************************************/
+
+
+
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
+/* common */
+#include "chartype.h"
+#include "check.h"
+#include "cmdline.h"
+#include "version.h"
+
+/* sp65 */
+#include "attr.h"
+#include "c.h"
+#include "error.h"
+
+
+
+/*****************************************************************************/
+/* Code */
+/*****************************************************************************/
+
+
+
+static int ValidIdentifier (const char* L)
+/* Check a C identifier for validity */
+{
+ /* Must begin with underscore or alphabetic character */
+ if (*L != '_' && !IsAlpha (*L)) {
+ return 0;
+ }
+ ++L;
+
+ /* Remainder must be as above plus digits */
+ while (*L) {
+ if (*L != '_' && !IsAlNum (*L)) {
+ return 0;
+ }
+ ++L;
+ }
+
+ /* Ok */
+ return 1;
+}
+
+
+
+static unsigned GetBytesPerLine (const Collection* A)
+/* Return the number of bytes per line from the attribute collection A */
+{
+ char C;
+ unsigned BytesPerLine = 16;
+
+ /* Check for a bytesperline attribute */
+ const char* V = GetAttrVal (A, "bytesperline");
+ if ((V && sscanf (V, "%u%c", &BytesPerLine, &C) != 1) ||
+ (BytesPerLine < 1 || BytesPerLine > 64)) {
+ Error ("Invalid value for attribute `bytesperline'");
+ }
+ return BytesPerLine;
+}
+
+
+
+static unsigned GetBase (const Collection* A)
+/* Return the number base from the attribute collection A */
+{
+ char C;
+ unsigned Base = 16;
+
+ /* Check for a base attribute */
+ const char* V = GetAttrVal (A, "base");
+ if ((V && sscanf (V, "%u%c", &Base, &C) != 1) || (Base != 10 && Base != 16)) {
+ Error ("Invalid value for attribute `base'");
+ }
+ return Base;
+}
+
+
+
+static const char* GetIdentifier (const Collection* A)
+/* Return the variable identifier from the attribute collection A */
+{
+ /* Check for a ident attribute */
+ const char* Ident = NeedAttrVal (A, "ident", "write");
+ if (!ValidIdentifier (Ident)) {
+ Error ("Invalid value for attribute `ident'");
+ }
+ return Ident;
+}
+
+
+
+void WriteCFile (const StrBuf* Data, const Collection* A)
+/* Write the contents of Data to a file in C format */
+{
+ FILE* F;
+ const char* D;
+ unsigned Size;
+
+
+ /* Get the file name */
+ const char* Name = NeedAttrVal (A, "name", "write");
+
+ /* Check the number of bytes per line */
+ unsigned BytesPerLine = GetBytesPerLine (A);
+
+ /* Get the number base */
+ unsigned Base = GetBase (A);
+
+ /* Get the identifier */
+ const char* Ident = GetIdentifier (A);
+
+ /* Open the output file */
+ F = fopen (Name, "w");
+ if (F == 0) {
+ Error ("Cannot open output file `%s': %s", Name, strerror (errno));
+ }
+
+ /* Write a readable header */
+ fprintf (F,
+ "/*\n"
+ " * This file was generated by %s %s\n"
+ " */\n"
+ "\n",
+ ProgName,
+ GetVersionAsString ());
+
+
+ /* Output the declaration and identifier */
+ fprintf (F, "const unsigned char %s[] = {\n", Ident);
+
+ /* Write the data */
+ D = SB_GetConstBuf (Data);
+ Size = SB_GetLen (Data);
+ while (Size) {
+
+ unsigned I;
+
+ /* Output one line */
+ unsigned Chunk = Size;
+ if (Chunk > BytesPerLine) {
+ Chunk = BytesPerLine;
+ }
+ fputs (" ", F);
+ for (I = 0; I < Chunk; ++I) {
+ switch (Base) {
+ case 10:
+ fprintf (F, "%u,", *D++);
+ break;
+ case 16:
+ fprintf (F, "0x%02X,", *D++);
+ break;
+
+ }
+ }
+ fputc ('\n', F);
+
+ /* Bump the counters */
+ Size -= Chunk;
+ }
+
+ /* Terminate the array */
+ fputs ("};\n", F);
+
+ /* Close the file */
+ if (fclose (F) != 0) {
+ Error ("Error closing output file `%s': %s", Name, strerror (errno));
+ }
+}
+
+
+
--- /dev/null
+/*****************************************************************************/
+/* */
+/* c.h */
+/* */
+/* C output for the sp65 sprite and bitmap utility */
+/* */
+/* */
+/* */
+/* (C) 2012, Ullrich von Bassewitz */
+/* Roemerstrasse 52 */
+/* D-70794 Filderstadt */
+/* EMail: uz@cc65.org */
+/* */
+/* */
+/* This software is provided 'as-is', without any expressed or implied */
+/* warranty. In no event will the authors be held liable for any damages */
+/* arising from the use of this software. */
+/* */
+/* Permission is granted to anyone to use this software for any purpose, */
+/* including commercial applications, and to alter it and redistribute it */
+/* freely, subject to the following restrictions: */
+/* */
+/* 1. The origin of this software must not be misrepresented; you must not */
+/* claim that you wrote the original software. If you use this software */
+/* in a product, an acknowledgment in the product documentation would be */
+/* appreciated but is not required. */
+/* 2. Altered source versions must be plainly marked as such, and must not */
+/* be misrepresented as being the original software. */
+/* 3. This notice may not be removed or altered from any source */
+/* distribution. */
+/* */
+/*****************************************************************************/
+
+
+
+#ifndef C_H
+#define C_H
+
+
+
+/* common */
+#include "coll.h"
+#include "strbuf.h"
+
+
+
+/*****************************************************************************/
+/* Code */
+/*****************************************************************************/
+
+
+
+void WriteCFile (const StrBuf* Data, const Collection* A);
+/* Write the contents of Data to a file in C format */
+
+
+
+/* End of c.h */
+
+#endif
+
+
+
projects / cc65 / commitdiff