ImageFilterCollapse.cpp File Reference

#include "bench/Benchmark.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColorFilter.h"
#include "include/core/SkImageFilter.h"
#include "include/core/SkSurface.h"
#include "include/effects/SkGradientShader.h"
#include "include/effects/SkImageFilters.h"

Go to the source code of this file.

Classes
class	BaseImageFilterCollapseBench
class	TableCollapseBench
class	MatrixCollapseBench

Functions
static sk_sp< SkColorFilter >	make_brightness (float amount)
static sk_sp< SkColorFilter >	make_grayscale ()

Function Documentation

make_brightness()

static sk_sp< SkColorFilter > make_brightness ( float  amount )

static

Definition at line 99 of file ImageFilterCollapse.cpp.

                                                          {
    SkScalar matrix[20] = { 1, 0, 0, 0, amount,
                            0, 1, 0, 0, amount,
                            0, 0, 1, 0, amount,
                            0, 0, 0, 1, 0 };
    return SkColorFilters::Matrix(matrix);
}

make_grayscale()

static sk_sp< SkColorFilter > make_grayscale ( )

static

Definition at line 107 of file ImageFilterCollapse.cpp.

                                             {
    float matrix[20];
    memset(matrix, 0, 20 * sizeof(float));
    matrix[0] = matrix[5] = matrix[10] = 0.2126f;
    matrix[1] = matrix[6] = matrix[11] = 0.7152f;
    matrix[2] = matrix[7] = matrix[12] = 0.0722f;
    matrix[18] = 1.0f;
    return SkColorFilters::Matrix(matrix);
}