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Matrix_Concat.cpp File Reference
#include "tools/fiddle/examples.h"

Go to the source code of this file.

Functions

 REG_FIDDLE (Matrix_Concat, 256, 64, false, 4)
 

Function Documentation

◆ REG_FIDDLE()

REG_FIDDLE ( Matrix_Concat  ,
256  ,
64  ,
false  ,
 
)

Definition at line 5 of file Matrix_Concat.cpp.

5 {
6void draw(SkCanvas* canvas) {
7 SkMatrix matrix, matrix2;
8 SkPoint bitmapBounds[4], perspect[4] = {{50, 10}, {180, 40}, {236, 176}, {10, 206}};
9 SkRect::Make(image->bounds()).toQuad(bitmapBounds);
10 matrix.setPolyToPoly(bitmapBounds, perspect, 4);
11 matrix2.setPolyToPoly(perspect, bitmapBounds, 4);
12 SkMatrix concat = SkMatrix::Concat(matrix, matrix2);
13 canvas->concat(concat);
14 canvas->drawImage(image, 0, 0);
15}
16} // END FIDDLE
static void draw(SkCanvas *canvas, SkRect &target, int x, int y)
Definition aaclip.cpp:27
void concat(const SkMatrix &matrix)
void drawImage(const SkImage *image, SkScalar left, SkScalar top)
Definition SkCanvas.h:1528
SkIRect bounds() const
Definition SkImage.h:303
static SkMatrix Concat(const SkMatrix &a, const SkMatrix &b)
Definition SkMatrix.h:1775
bool setPolyToPoly(const SkPoint src[], const SkPoint dst[], int count)
sk_sp< SkImage > image
Definition examples.cpp:29
unsigned useCenter Optional< SkMatrix > matrix
Definition SkRecords.h:258
static SkRect Make(const SkISize &size)
Definition SkRect.h:669
void toQuad(SkPoint quad[4]) const
Definition SkRect.cpp:50