2 * Copyright 2014 Google Inc.
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
8 #ifndef sk_tool_utils_DEFINED
9 #define sk_tool_utils_DEFINED
12 #include "SkImageEncoder.h"
13 #include "SkImageInfo.h"
14 #include "SkPixelSerializer.h"
15 #include "SkTypeface.h"
22 class SkTextBlobBuilder;
24 namespace sk_tool_utils {
26 const char* colortype_name(SkColorType);
29 * Sets the paint to use a platform-independent text renderer.
31 void set_portable_typeface(SkPaint* paint, const char* name = NULL,
32 SkTypeface::Style style = SkTypeface::kNormal);
33 SkTypeface* create_portable_typeface(const char* name, SkTypeface::Style style);
34 void report_used_chars();
37 * Call canvas->writePixels() by using the pixels from bitmap, but with an info that claims
38 * the pixels are colorType + alphaType
40 void write_pixels(SkCanvas*, const SkBitmap&, int x, int y, SkColorType, SkAlphaType);
42 // private to sk_tool_utils
43 SkTypeface* create_font(const char* name, SkTypeface::Style );
44 SkTypeface* resource_font(const char* name, SkTypeface::Style );
46 /** Returns a newly created CheckerboardShader. */
47 SkShader* create_checkerboard_shader(SkColor c1, SkColor c2, int size);
49 /** Draw a checkerboard pattern in the current canvas, restricted to
50 the current clip, using SkXfermode::kSrc_Mode. */
51 void draw_checkerboard(SkCanvas* canvas,
56 /** A default checkerboard. */
57 inline void draw_checkerboard(SkCanvas* canvas) {
58 sk_tool_utils::draw_checkerboard(canvas, 0xFF999999, 0xFF666666, 8);
61 // Encodes to PNG, unless there is already encoded data, in which case that gets
63 class PngPixelSerializer : public SkPixelSerializer {
65 bool onUseEncodedData(const void*, size_t) override { return true; }
66 SkData* onEncodePixels(const SkImageInfo& info, const void* pixels,
67 size_t rowBytes) override {
68 return SkImageEncoder::EncodeData(info, pixels, rowBytes,
69 SkImageEncoder::kPNG_Type, 100);
73 // A helper for inserting a drawtext call into a SkTextBlobBuilder
74 void add_to_text_blob(SkTextBlobBuilder* builder, const char* text, const SkPaint& origPaint,
75 SkScalar x, SkScalar y);
77 } // namespace sk_tool_utils
79 #endif // sk_tool_utils_DEFINED