/*
* Copyright 2014 Google Inc.
+ * Copyright 2015 Xamarin Inc.
+ * Copyright 2017 Microsoft Corporation. All rights reserved.
*
* 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_shader_DEFINED
#define sk_shader_DEFINED
SK_C_API void sk_shader_ref(sk_shader_t*);
SK_C_API void sk_shader_unref(sk_shader_t*);
-
-/**
- Returns a shader that generates a linear gradient between the two
- specified points.
-
- @param points The start and end points for the gradient.
- @param colors The array[count] of colors, to be distributed between
- the two points
- @param colorPos May be NULL. array[count] of SkScalars, or NULL, of
- the relative position of each corresponding color
- in the colors array. If this is NULL, the the
- colors are distributed evenly between the start
- and end point. If this is not null, the values
- must begin with 0, end with 1.0, and intermediate
- values must be strictly increasing.
- @param colorCount Must be >=2. The number of colors (and pos if not
- NULL) entries.
- @param mode The tiling mode
-*/
SK_C_API sk_shader_t* sk_shader_new_linear_gradient(const sk_point_t points[2],
const sk_color_t colors[],
const float colorPos[],
int colorCount,
sk_shader_tilemode_t tileMode,
const sk_matrix_t* localMatrix);
-
-
-/**
- Returns a shader that generates a radial gradient given the center
- and radius.
-
- @param center The center of the circle for this gradient
- @param radius Must be positive. The radius of the circle for this
- gradient
- @param colors The array[count] of colors, to be distributed
- between the center and edge of the circle
- @param colorPos May be NULL. The array[count] of the relative
- position of each corresponding color in the colors
- array. If this is NULL, the the colors are
- distributed evenly between the center and edge of
- the circle. If this is not null, the values must
- begin with 0, end with 1.0, and intermediate
- values must be strictly increasing.
- @param count Must be >= 2. The number of colors (and pos if not
- NULL) entries
- @param tileMode The tiling mode
- @param localMatrix May be NULL
-*/
SK_C_API sk_shader_t* sk_shader_new_radial_gradient(const sk_point_t* center,
float radius,
const sk_color_t colors[],
int colorCount,
sk_shader_tilemode_t tileMode,
const sk_matrix_t* localMatrix);
-
-/**
- Returns a shader that generates a sweep gradient given a center.
-
- @param center The coordinates of the center of the sweep
- @param colors The array[count] of colors, to be distributed around
- the center.
- @param colorPos May be NULL. The array[count] of the relative
- position of each corresponding color in the colors
- array. If this is NULL, the the colors are
- distributed evenly between the center and edge of
- the circle. If this is not null, the values must
- begin with 0, end with 1.0, and intermediate
- values must be strictly increasing.
- @param colorCount Must be >= 2. The number of colors (and pos if
- not NULL) entries
- @param localMatrix May be NULL
-*/
SK_C_API sk_shader_t* sk_shader_new_sweep_gradient(const sk_point_t* center,
const sk_color_t colors[],
const float colorPos[],
int colorCount,
const sk_matrix_t* localMatrix);
-
-/**
- Returns a shader that generates a conical gradient given two circles, or
- returns NULL if the inputs are invalid. The gradient interprets the
- two circles according to the following HTML spec.
- http://dev.w3.org/html5/2dcontext/#dom-context-2d-createradialgradient
-
- Returns a shader that generates a sweep gradient given a center.
-
- @param start, startRadius Defines the first circle.
- @param end, endRadius Defines the first circle.
- @param colors The array[count] of colors, to be distributed between
- the two circles.
- @param colorPos May be NULL. The array[count] of the relative
- position of each corresponding color in the colors
- array. If this is NULL, the the colors are
- distributed evenly between the two circles. If
- this is not null, the values must begin with 0,
- end with 1.0, and intermediate values must be
- strictly increasing.
- @param colorCount Must be >= 2. The number of colors (and pos if
- not NULL) entries
- @param tileMode The tiling mode
- @param localMatrix May be NULL
-
-*/
SK_C_API sk_shader_t* sk_shader_new_two_point_conical_gradient(
const sk_point_t* start,
float startRadius,
int colorCount,
sk_shader_tilemode_t tileMode,
const sk_matrix_t* localMatrix);
-
-/**
- Call this to create a new "empty" shader, that will not draw anything.
-*/
SK_C_API sk_shader_t* sk_shader_new_empty(void);
-/**
- Call this to create a new shader that just draws the specified color. This should always
- draw the same as a paint with this color (and no shader).
-*/
SK_C_API sk_shader_t* sk_shader_new_color(sk_color_t color);
-/**
- Call this to create a new shader that will draw with the specified bitmap.
-
- If the bitmap cannot be used (e.g. has no pixels, or its dimensions
- exceed implementation limits (currently at 64K - 1)) then SkEmptyShader
- may be returned.
-
- @param src The bitmap to use inside the shader
- @param tmx The tiling mode to use when sampling the bitmap in the x-direction.
- @param tmy The tiling mode to use when sampling the bitmap in the y-direction.
-*/
SK_C_API sk_shader_t* sk_shader_new_bitmap(const sk_bitmap_t* src,
sk_shader_tilemode_t tmx,
sk_shader_tilemode_t tmy,
sk_shader_tilemode_t tmy,
const sk_matrix_t* localMatrix,
const sk_rect_t* tile);
-/**
- Return a shader that will apply the specified localMatrix to the proxy shader.
- The specified matrix will be applied before any matrix associated with the proxy.
-
- Note: ownership of the proxy is not transferred (though a ref is taken).
-*/
-SK_C_API sk_shader_t* sk_shader_new_local_matrix(sk_shader_t* proxy,
- const sk_matrix_t* localMatrix);
-SK_C_API sk_shader_t* sk_shader_new_color_filter(sk_shader_t* proxy,
- sk_colorfilter_t* filter);
+SK_C_API sk_shader_t* sk_shader_new_local_matrix(sk_shader_t* proxy, const sk_matrix_t* localMatrix);
+SK_C_API sk_shader_t* sk_shader_new_color_filter(sk_shader_t* proxy, sk_colorfilter_t* filter);
SK_C_API sk_shader_t* sk_shader_new_perlin_noise_fractal_noise(
float baseFrequencyX,
float baseFrequencyY,
projects / platform / upstream / libSkiaSharp.git / blobdiff