skia2/tests/SkLinearBitmapPipelineTest.cpp

59 lines
1.5 KiB
C++

/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkLinearBitmapPipeline.h"
#include "SkColor.h"
#include "SkPM4f.h"
#include "Test.h"
using Pixel = float[4];
DEF_TEST(SkBitmapFP, reporter) {
int width = 10;
int height = 10;
uint32_t* bitmap = new uint32_t[width * height];
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
bitmap[y * width + x] = (y << 8) + x + (128<<24);
}
}
SkPM4f* FPbuffer = new SkPM4f[width * height];
SkMatrix m = SkMatrix::I();
//m.setRotate(30.0f, 1.0f, 1.0f);
SkMatrix invert;
bool trash = m.invert(&invert);
sk_ignore_unused_variable(trash);
const SkImageInfo info =
SkImageInfo::MakeN32Premul(width, height, kLinear_SkColorProfileType);
SkPixmap srcPixmap{info, bitmap, static_cast<size_t>(4 * width)};
SkLinearBitmapPipeline pipeline{invert, kNone_SkFilterQuality, SkShader::kClamp_TileMode,
SkShader::kClamp_TileMode, srcPixmap};
int count = 10;
pipeline.shadeSpan4f(3, 6, FPbuffer, count);
#if 0
Pixel* pixelBuffer = (Pixel*)FPbuffer;
for (int i = 0; i < count; i++) {
printf("i: %d - (%g, %g, %g, %g)\n", i,
pixelBuffer[i][0] * 255.0f,
pixelBuffer[i][1] * 255.0f,
pixelBuffer[i][2] * 255.0f,
pixelBuffer[i][3] * 255.0f);
}
#endif
delete [] bitmap;
delete [] FPbuffer;
}