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      1 /*
      2  * Copyright 2016 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 #include "SkLinearBitmapPipeline.h"
      9 #include "SkColor.h"
     10 #include "SkPM4f.h"
     11 #include "Test.h"
     12 
     13 using Pixel = float[4];
     14 DEF_TEST(SkBitmapFP, reporter) {
     15 
     16     int width = 10;
     17     int height = 10;
     18     uint32_t* bitmap = new uint32_t[width * height];
     19     for (int y = 0; y < height; y++) {
     20         for (int x = 0; x < width; x++) {
     21             bitmap[y * width + x] = (y << 8) + x + (128<<24);
     22         }
     23     }
     24 
     25     SkPM4f* FPbuffer = new SkPM4f[width * height];
     26 
     27     SkMatrix m = SkMatrix::I();
     28     //m.setRotate(30.0f, 1.0f, 1.0f);
     29     SkMatrix invert;
     30     bool trash = m.invert(&invert);
     31     sk_ignore_unused_variable(trash);
     32 
     33     const SkImageInfo info =
     34         SkImageInfo::MakeN32Premul(width, height, kLinear_SkColorProfileType);
     35 
     36     SkPixmap srcPixmap{info, bitmap, static_cast<size_t>(4 * width)};
     37 
     38     SkLinearBitmapPipeline pipeline{invert, kNone_SkFilterQuality, SkShader::kClamp_TileMode,
     39                                     SkShader::kClamp_TileMode, srcPixmap};
     40 
     41     int count = 10;
     42 
     43     pipeline.shadeSpan4f(3, 6, FPbuffer, count);
     44 #if 0
     45     Pixel* pixelBuffer = (Pixel*)FPbuffer;
     46     for (int i = 0; i < count; i++) {
     47         printf("i: %d - (%g, %g, %g, %g)\n", i,
     48                pixelBuffer[i][0] * 255.0f,
     49                pixelBuffer[i][1] * 255.0f,
     50                pixelBuffer[i][2] * 255.0f,
     51                pixelBuffer[i][3] * 255.0f);
     52     }
     53 #endif
     54 
     55     delete [] bitmap;
     56     delete [] FPbuffer;
     57 }
     58 
     59