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) {
SkTileMode 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();
}
void sk_canvas_draw_picture(sk_canvas_t* ccanvas, const sk_picture_t* cpicture,
const sk_matrix_t* cmatrix, const sk_paint_t* cpaint) {
const SkMatrix* matrixPtr = NULL;
SkMatrix matrix;
if (cmatrix) {
from_c_matrix(cmatrix, &matrix);
matrixPtr = &matrix;
}
AsCanvas(ccanvas)->drawPicture(AsPicture(cpicture), matrixPtr, AsPaint(cpaint));
}
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_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 NULL;
}
SkMatrix matrix;
if (cmatrix) {
from_c_matrix(cmatrix, &matrix);
} else {
matrix.setIdentity();
}
SkShader* s = SkGradientShader::CreateLinear(reinterpret_cast<const SkPoint*>(pts),
reinterpret_cast<const SkColor*>(colors),
colorPos, colorCount, mode, 0, &matrix);
return (sk_shader_t*)s;
}
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) {
SkTileMode 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();
}
void sk_canvas_concat(sk_canvas_t* ccanvas, const sk_matrix_t* cmatrix) {
SkASSERT(cmatrix);
SkMatrix matrix;
from_c_matrix(cmatrix, &matrix);
AsCanvas(ccanvas)->concat(matrix);
}