separate c headers

include/c/sk_surface.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 // EXPERIMENTAL EXPERIMENTAL EXPERIMENTAL EXPERIMENTAL
 // DO NOT USE -- FOR INTERNAL TESTING ONLY
 
-#ifndef sk_types_DEFINED
-#define sk_types_DEFINED
+#ifndef sk_surface_DEFINED
+#define sk_surface_DEFINED
 
-#include <stdint.h>
-#include <stddef.h>
+#include "sk_types.h"
 
-#ifndef __cplusplus
-#include <stdbool.h>
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef uint32_t sk_color_t;
-
-#define sk_color_set_argb(a, r, g, b)   (((a) << 24) | ((r) << 16) | ((g) << 8) | (b))
-#define sk_color_get_a(c)               (((c) >> 24) & 0xFF)
-#define sk_color_get_r(c)               (((c) >> 16) & 0xFF)
-#define sk_color_get_g(c)               (((c) >>  8) & 0xFF)
-#define sk_color_get_b(c)               (((c) >>  0) & 0xFF)
-
-typedef enum {
-    UNKNOWN_SK_COLORTYPE,
-    RGBA_8888_SK_COLORTYPE,
-    BGRA_8888_SK_COLORTYPE,
-    ALPHA_8_SK_COLORTYPE,
-} sk_colortype_t;
-
-typedef enum {
-    OPAQUE_SK_ALPHATYPE,
-    PREMUL_SK_ALPHATYPE,
-    UNPREMUL_SK_ALPHATYPE,
-} sk_alphatype_t;
-
-sk_colortype_t sk_colortype_get_default_8888();
-
-typedef struct {
-    int32_t         width;
-    int32_t         height;
-    sk_colortype_t  colorType;
-    sk_alphatype_t  alphaType;
-} sk_imageinfo_t;
-
-typedef struct {
-    float   left;
-    float   top;
-    float   right;
-    float   bottom;
-} sk_rect_t;
-
-typedef struct sk_path_t sk_path_t;
-
-sk_path_t* sk_path_new();
-void sk_path_delete(sk_path_t*);
-void sk_path_move_to(sk_path_t*, float x, float y);
-void sk_path_line_to(sk_path_t*, float x, float y);
-void sk_path_quad_to(sk_path_t*, float x0, float y0, float x1, float y1);
-void sk_path_close(sk_path_t*);
-
-typedef struct sk_paint_t sk_paint_t;
-
-sk_paint_t* sk_paint_new();
-void sk_paint_delete(sk_paint_t*);
-bool sk_paint_is_antialias(const sk_paint_t*);
-void sk_paint_set_antialias(sk_paint_t*, bool);
-sk_color_t sk_paint_get_color(const sk_paint_t*);
-void sk_paint_set_color(sk_paint_t*, sk_color_t);
-
-typedef struct sk_canvas_t sk_canvas_t;
-typedef struct sk_image_t sk_image_t;
-
-void sk_canvas_save(sk_canvas_t*);
-void sk_canvas_save_layer(sk_canvas_t*, const sk_rect_t*, const sk_paint_t*);
-void sk_canvas_restore(sk_canvas_t*);
-
-void sk_canvas_translate(sk_canvas_t*, float dx, float dy);
-void sk_canvas_scale(sk_canvas_t*, float sx, float sy);
-
-void sk_canvas_draw_paint(sk_canvas_t*, const sk_paint_t*);
-void sk_canvas_draw_rect(sk_canvas_t*, const sk_rect_t*, const sk_paint_t*);
-void sk_canvas_draw_oval(sk_canvas_t*, const sk_rect_t*, const sk_paint_t*);
-void sk_canvas_draw_path(sk_canvas_t*, const sk_path_t*, const sk_paint_t*);
-void sk_canvas_draw_image(sk_canvas_t*, const sk_image_t*, float x, float y, const sk_paint_t*);
-
-/**
- *  Return a new image that has made a copy of the provided pixels, or NULL on failure.
- *  Balance with a call to sk_image_unref().
- */
-sk_image_t* sk_image_new_raster_copy(const sk_imageinfo_t*, const void* pixels, size_t rowBytes);
-void sk_image_ref(const sk_image_t*);
-void sk_image_unref(const sk_image_t*);
-int sk_image_get_width(const sk_image_t*);
-int sk_image_get_height(const sk_image_t*);
-uint32_t sk_image_get_unique_id(const sk_image_t*);
-
-typedef struct sk_surface_t sk_surface_t;
+SK_C_PLUS_PLUS_BEGIN_GUARD
 
 sk_surface_t* sk_surface_new_raster(const sk_imageinfo_t*);
 sk_surface_t* sk_surface_new_raster_direct(const sk_imageinfo_t*, void* pixels, size_t rowBytes);
 void sk_surface_delete(sk_surface_t*);
 
 /**
  *  Return the canvas associated with this surface. Note: the canvas is owned by the surface,
  *  so the returned object is only valid while the owning surface is valid.
  */
 sk_canvas_t* sk_surface_get_canvas(sk_surface_t*);
+
+/**
+ *  Call sk_image_unref() when the returned image is no longer used.
+ */
 sk_image_t* sk_surface_new_image_snapshot(sk_surface_t*);
 
 #ifdef __cplusplus
     class SkCanvas;
     void sk_test_capi(SkCanvas*);
-}
 #endif
 
+SK_C_PLUS_PLUS_END_GUARD
+
 #endif