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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "sk_types_priv.h"
#include "SkMatrix.h"
static void from_c_matrix(const sk_matrix_t* cmatrix, SkMatrix* matrix) {
matrix->setAll(cmatrix->mat[0], cmatrix->mat[1], cmatrix->mat[2],
cmatrix->mat[3], cmatrix->mat[4], cmatrix->mat[5],
cmatrix->mat[6], cmatrix->mat[7], cmatrix->mat[8]);
}
#include "../../include/effects/SkGradientShader.h"
#include "sk_shader.h"
const struct {
sk_shader_tilemode_t fC;
SkShader::TileMode fSK;
} gTileModeMap[] = {
{ CLAMP_SK_SHADER_TILEMODE, SkShader::kClamp_TileMode },
{ REPEAT_SK_SHADER_TILEMODE, SkShader::kRepeat_TileMode },
{ MIRROR_SK_SHADER_TILEMODE, SkShader::kMirror_TileMode },
};
static bool from_c_tilemode(sk_shader_tilemode_t cMode, SkShader::TileMode* skMode) {
for (size_t i = 0; i < SK_ARRAY_COUNT(gTileModeMap); ++i) {
if (cMode == gTileModeMap[i].fC) {
if (skMode) {
*skMode = gTileModeMap[i].fSK;
}
return true;
}
}
return false;
}
void sk_shader_ref(sk_shader_t* cshader) {
SkSafeRef(AsShader(cshader));
}
void sk_shader_unref(sk_shader_t* cshader) {
SkSafeUnref(AsShader(cshader));
}
sk_shader_t* sk_shader_new_linear_gradient(const sk_point_t pts[2],
const sk_color_t colors[],
const float colorPos[],
int colorCount,
sk_shader_tilemode_t cmode,
const sk_matrix_t* cmatrix) {
SkShader::TileMode mode;
if (!from_c_tilemode(cmode, &mode)) {
return nullptr;
}
SkMatrix matrix;
if (cmatrix) {
from_c_matrix(cmatrix, &matrix);
} else {
matrix.setIdentity();
}
return (sk_shader_t*)SkGradientShader::MakeLinear(reinterpret_cast<const SkPoint*>(pts),
reinterpret_cast<const SkColor*>(colors),
colorPos, colorCount,
mode, 0, &matrix).release();
}
static const SkPoint& to_skpoint(const sk_point_t& p) {
return reinterpret_cast<const SkPoint&>(p);
}
sk_shader_t* sk_shader_new_radial_gradient(const sk_point_t* ccenter,
float radius,
const sk_color_t colors[],
const float colorPos[],
int colorCount,
sk_shader_tilemode_t cmode,
const sk_matrix_t* cmatrix) {
SkShader::TileMode mode;
if (!from_c_tilemode(cmode, &mode)) {
return nullptr;
}
SkMatrix matrix;
if (cmatrix) {
from_c_matrix(cmatrix, &matrix);
} else {
matrix.setIdentity();
}
SkPoint center = to_skpoint(*ccenter);
return (sk_shader_t*)SkGradientShader::MakeRadial(center, (SkScalar)radius,
reinterpret_cast<const SkColor*>(colors),
reinterpret_cast<const SkScalar*>(colorPos),
colorCount, mode, 0, &matrix).release();
}
sk_shader_t* sk_shader_new_sweep_gradient(const sk_point_t* ccenter,
const sk_color_t colors[],
const float colorPos[],
int colorCount,
const sk_matrix_t* cmatrix) {
SkMatrix matrix;
if (cmatrix) {
from_c_matrix(cmatrix, &matrix);
} else {
matrix.setIdentity();
}
return (sk_shader_t*)SkGradientShader::MakeSweep((SkScalar)(ccenter->x),
(SkScalar)(ccenter->y),
reinterpret_cast<const SkColor*>(colors),
reinterpret_cast<const SkScalar*>(colorPos),
colorCount, 0, &matrix).release();
}
sk_shader_t* sk_shader_new_two_point_conical_gradient(const sk_point_t* start,
float startRadius,
const sk_point_t* end,
float endRadius,
const sk_color_t colors[],
const float colorPos[],
int colorCount,
sk_shader_tilemode_t cmode,
const sk_matrix_t* cmatrix) {
SkShader::TileMode mode;
if (!from_c_tilemode(cmode, &mode)) {
return nullptr;
}
SkMatrix matrix;
if (cmatrix) {
from_c_matrix(cmatrix, &matrix);
} else {
matrix.setIdentity();
}
SkPoint skstart = to_skpoint(*start);
SkPoint skend = to_skpoint(*end);
return (sk_shader_t*)SkGradientShader::MakeTwoPointConical(skstart, (SkScalar)startRadius,
skend, (SkScalar)endRadius,
reinterpret_cast<const SkColor*>(colors),
reinterpret_cast<const SkScalar*>(colorPos),
colorCount, mode, 0, &matrix).release();
}
///////////////////////////////////////////////////////////////////////////////////////////
#include "../../include/effects/SkBlurMaskFilter.h"
#include "sk_maskfilter.h"
const struct {
sk_blurstyle_t fC;
SkBlurStyle fSk;
} gBlurStylePairs[] = {
{ NORMAL_SK_BLUR_STYLE, kNormal_SkBlurStyle },
{ SOLID_SK_BLUR_STYLE, kSolid_SkBlurStyle },
{ OUTER_SK_BLUR_STYLE, kOuter_SkBlurStyle },
{ INNER_SK_BLUR_STYLE, kInner_SkBlurStyle },
};
static bool find_blurstyle(sk_blurstyle_t csrc, SkBlurStyle* dst) {
for (size_t i = 0; i < SK_ARRAY_COUNT(gBlurStylePairs); ++i) {
if (gBlurStylePairs[i].fC == csrc) {
if (dst) {
*dst = gBlurStylePairs[i].fSk;
}
return true;
}
}
return false;
}
void sk_maskfilter_ref(sk_maskfilter_t* cfilter) {
SkSafeRef(AsMaskFilter(cfilter));
}
void sk_maskfilter_unref(sk_maskfilter_t* cfilter) {
SkSafeUnref(AsMaskFilter(cfilter));
}
sk_maskfilter_t* sk_maskfilter_new_blur(sk_blurstyle_t cstyle, float sigma) {
SkBlurStyle style;
if (!find_blurstyle(cstyle, &style)) {
return nullptr;
}
return ToMaskFilter(SkBlurMaskFilter::Make(style, sigma).release());
}
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