1 /*
2  * Copyright 2017 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 "Test.h"
9 #include "SkBitmap.h"
10 
11 class GrSurfaceContext;
12 class GrSurfaceProxy;
13 typedef uint32_t GrColor;
14 
15 // Ensure that reading back from 'srcContext' as RGBA 8888 matches 'expectedPixelValues
16 void test_read_pixels(skiatest::Reporter*,
17                       GrSurfaceContext* srcContext, uint32_t expectedPixelValues[],
18                       const char* testName);
19 
20 // See if trying to write RGBA 8888 pixels to 'dstContext' matches matches the
21 // expectation ('expectedToWork')
22 void test_write_pixels(skiatest::Reporter*,
23                        GrSurfaceContext* srcContext, bool expectedToWork, const char* testName);
24 
25 // Ensure that the pixels can be copied from 'proxy' to an RGBA 8888 destination (both
26 // texture-backed and rendertarget-backed).
27 void test_copy_from_surface(skiatest::Reporter*, GrContext*,
28                             GrSurfaceProxy* proxy, uint32_t expectedPixelValues[],
29                             bool onlyTestRTConfig, const char* testName);
30 
31 // Ensure that RGBA 8888 pixels can be copied into 'dstContext'
32 void test_copy_to_surface(skiatest::Reporter*, GrProxyProvider*,
33                           GrSurfaceContext* dstContext, const char* testName);
34 
35 // Fills data with a red-green gradient
36 void fill_pixel_data(int width, int height, GrColor* data);
37 
38 // Checks srcBuffer and dstBuffer contain the same colors
39 bool does_full_buffer_contain_correct_color(GrColor* srcBuffer, GrColor* dstBuffer, int width,
40                                             int height);
41 
42 // Encodes the bitmap into a data:/image/png;base64,... url suitable to view in a browser after
43 // printing to a log. If false is returned, dst holds an error message instead of a URI.
44 bool bitmap_to_base64_data_uri(const SkBitmap& bitmap, SkString* dst);
45