skia2/include/c/sk_surface.h

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/*
* 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_surface_DEFINED
#define sk_surface_DEFINED
#include "sk_types.h"
SK_C_PLUS_PLUS_BEGIN_GUARD
/**
Return a new surface, with the memory for the pixels automatically
allocated. If the requested surface cannot be created, or the
request is not a supported configuration, NULL will be returned.
@param sk_imageinfo_t* Specify the width, height, color type, and
alpha type for the surface.
@param sk_surfaceprops_t* If not NULL, specify additional non-default
properties of the surface.
*/
SK_API sk_surface_t* sk_surface_new_raster(const sk_imageinfo_t*, const sk_surfaceprops_t*);
/**
Create a new surface which will draw into the specified pixels
with the specified rowbytes. If the requested surface cannot be
created, or the request is not a supported configuration, NULL
will be returned.
@param sk_imageinfo_t* Specify the width, height, color type, and
alpha type for the surface.
@param void* pixels Specify the location in memory where the
destination pixels are. This memory must
outlast this surface.
@param size_t rowBytes Specify the difference, in bytes, between
each adjacent row. Should be at least
(width * sizeof(one pixel)).
@param sk_surfaceprops_t* If not NULL, specify additional non-default
properties of the surface.
*/
SK_API sk_surface_t* sk_surface_new_raster_direct(const sk_imageinfo_t*,
void* pixels, size_t rowBytes,
const sk_surfaceprops_t* props);
/**
Decrement the reference count. If the reference count is 1 before
the decrement, then release both the memory holding the
sk_surface_t and any pixel memory it may be managing. New
sk_surface_t are created with a reference count of 1.
*/
SK_API void sk_surface_unref(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_API sk_canvas_t* sk_surface_get_canvas(sk_surface_t*);
/**
* Call sk_image_unref() when the returned image is no longer used.
*/
SK_API sk_image_t* sk_surface_new_image_snapshot(sk_surface_t*);
SK_C_PLUS_PLUS_END_GUARD
#endif