pacc: initial

1 files changed, 53 insertions, 0 deletions

diff --git a/pacc/pacc.h b/pacc/pacc.h
new file mode 100644
index 0000000..b3387ac
--- /dev/null
+++ b/pacc/pacc.h
@@ -0,0 +1,53 @@
+#ifndef MYON_PACC_H_INCLUDED
+#define MYON_PACC_H_INCLUDED
+
+#include <stdint.h>
+#include <stdarg.h>
+
+enum pacc_mode {
+  pacc_mode_copy,
+  pacc_mode_color,
+  pacc_mode_color_trans,
+  pacc_mode_count,
+};
+
+enum pacc_buf_mode {
+  pacc_buf_mode_static,
+  pacc_buf_mode_stream,
+};
+
+struct pacc_ctx;
+struct pacc_tex;
+struct pacc_buf;
+
+struct pacc_vtable {
+  void (*pacc_delete)(struct pacc_ctx *pc);
+  struct pacc_buf *(*gen_buf)(
+      struct pacc_ctx *pc, struct pacc_tex *pt, enum pacc_buf_mode mode);
+  struct pacc_tex *(*gen_tex)(struct pacc_ctx *pc, int w, int h);
+  void (*buf_delete)(struct pacc_buf *buf);
+  uint8_t *(*tex_lock)(struct pacc_tex *tex);
+  void (*tex_unlock)(struct pacc_tex *tex);
+  void (*tex_delete)(struct pacc_tex *tex);
+  void (*buf_rect)(
+      const struct pacc_ctx *ctx, struct pacc_buf *buf,
+      int x, int y, int w, int h);
+  void (*buf_rect_off)(
+      const struct pacc_ctx *ctx, struct pacc_buf *buf,
+      int x, int y, int w, int h, int xoff, int yoff);
+  void (*buf_vprintf)(
+      const struct pacc_ctx *ctx, struct pacc_buf *buf,
+      int x, int y, const char *fmt, va_list ap);
+  void (*buf_printf)(
+      const struct pacc_ctx *ctx, struct pacc_buf *buf,
+      int x, int y, const char *fmt, ...);
+  void (*buf_clear)(struct pacc_buf *buf);
+  void (*palette)(struct pacc_ctx *ctx, const uint8_t *rgb, int colors);
+  void (*color)(struct pacc_ctx *ctx, uint8_t pal);
+  void (*begin_clear)(struct pacc_ctx *ctx);
+  void (*draw)(struct pacc_ctx *ctx, struct pacc_buf *buf, enum pacc_mode mode);
+};
+
+struct pacc_ctx *pacc_init_gl(int w, int h, struct pacc_vtable *vt);
+
+#endif // MYON_PACC_H_INCLUDED