1 files changed, 82 insertions, 0 deletions
diff --git a/quantum/painter/qp_stream.h b/quantum/painter/qp_stream.h
new file mode 100644
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+++ b/quantum/painter/qp_stream.h
@@ -0,0 +1,82 @@
+/* Copyright 2021 Nick Brassel (@tzarc)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "qp_internal.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Stream API
+
+typedef struct qp_stream_t qp_stream_t;
+
+#define qp_stream_get(stream_ptr) (((qp_stream_t *)(stream_ptr))->get((qp_stream_t *)(stream_ptr)))
+#define qp_stream_put(stream_ptr, c) (((qp_stream_t *)(stream_ptr))->put((qp_stream_t *)(stream_ptr), (c)))
+#define qp_stream_seek(stream_ptr, offset, origin) (((qp_stream_t *)(stream_ptr))->seek((qp_stream_t *)(stream_ptr), (offset), (origin)))
+#define qp_stream_tell(stream_ptr) (((qp_stream_t *)(stream_ptr))->tell((qp_stream_t *)(stream_ptr)))
+#define qp_stream_eof(stream_ptr) (((qp_stream_t *)(stream_ptr))->is_eof((qp_stream_t *)(stream_ptr)))
+#define qp_stream_setpos(stream_ptr, offset) qp_stream_seek((stream_ptr), (offset), SEEK_SET)
+#define qp_stream_getpos(stream_ptr) qp_stream_tell((stream_ptr))
+#define qp_stream_read(output_buf, member_size, num_members, stream_ptr) qp_stream_read_impl((output_buf), (member_size), (num_members), (qp_stream_t *)(stream_ptr))
+#define qp_stream_write(input_buf, member_size, num_members, stream_ptr) qp_stream_write_impl((input_buf), (member_size), (num_members), (qp_stream_t *)(stream_ptr))
+
+uint32_t qp_stream_read_impl(void *output_buf, uint32_t member_size, uint32_t num_members, qp_stream_t *stream);
+uint32_t qp_stream_write_impl(const void *input_buf, uint32_t member_size, uint32_t num_members, qp_stream_t *stream);
+
+#define STREAM_EOF ((int16_t)(-1))
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Stream definition
+
+struct qp_stream_t {
+    int16_t (*get)(qp_stream_t *stream);
+    bool (*put)(qp_stream_t *stream, uint8_t c);
+    int (*seek)(qp_stream_t *stream, int32_t offset, int origin);
+    int32_t (*tell)(qp_stream_t *stream);
+    bool (*is_eof)(qp_stream_t *stream);
+};
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Memory streams
+
+typedef struct qp_memory_stream_t {
+    qp_stream_t base;
+    uint8_t *   buffer;
+    int32_t     length;
+    int32_t     position;
+    bool        is_eof;
+} qp_memory_stream_t;
+
+qp_memory_stream_t qp_make_memory_stream(void *buffer, int32_t length);
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// FILE streams
+
+#ifdef QP_STREAM_HAS_FILE_IO
+
+typedef struct qp_file_stream_t {
+    qp_stream_t base;
+    FILE *      file;
+} qp_file_stream_t;
+
+qp_file_stream_t qo_make_file_stream(FILE *f);
+
+#endif // QP_STREAM_HAS_FILE_IO