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| 1 /* |
| 2 * Copyright 2015 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 "sk_tool_utils.h" |
| 9 #include "SkSurface.h" |
| 10 #include "Resources.h" |
| 11 #include "gm.h" |
| 12 |
| 13 static SkBitmap copy_bitmap(const SkBitmap& src, SkColorType colorType) { |
| 14 SkBitmap copy; |
| 15 src.copyTo(©, colorType); |
| 16 copy.setImmutable(); |
| 17 return copy; |
| 18 } |
| 19 |
| 20 // Make either A8 or gray8 bitmap. |
| 21 static SkBitmap make_bitmap(bool alpha) { |
| 22 SkBitmap bm; |
| 23 SkImageInfo info = alpha ? SkImageInfo::MakeA8(128, 128) |
| 24 : SkImageInfo::Make(128, 128, kGray_8_SkColorType, |
| 25 kOpaque_SkAlphaType); |
| 26 bm.allocPixels(info); |
| 27 SkAutoLockPixels autoLockPixels(bm); |
| 28 uint8_t spectrum[256]; |
| 29 for (int y = 0; y < 256; ++y) { |
| 30 spectrum[y] = y; |
| 31 } |
| 32 for (int y = 0; y < 128; ++y) { |
| 33 // Shift over one byte each scanline. |
| 34 memcpy(bm.getAddr8(0, y), &spectrum[y], 128); |
| 35 } |
| 36 bm.setImmutable(); |
| 37 return bm; |
| 38 } |
| 39 |
| 40 static void draw(SkCanvas* canvas, |
| 41 const SkPaint& p, |
| 42 const SkBitmap& src, |
| 43 SkColorType colorType, |
| 44 const char text[]) { |
| 45 SkASSERT(src.colorType() == colorType); |
| 46 canvas->drawBitmap(src, 0.0f, 0.0f); |
| 47 canvas->drawText(text, strlen(text), 0.0f, 12.0f, p); |
| 48 } |
| 49 |
| 50 #define SCALE 128 |
| 51 DEF_SIMPLE_GM(all_bitmap_configs, canvas, SCALE, 6 * SCALE) { |
| 52 SkAutoCanvasRestore autoCanvasRestore(canvas, true); |
| 53 SkPaint p; |
| 54 p.setColor(SK_ColorBLACK); |
| 55 p.setAntiAlias(true); |
| 56 sk_tool_utils::set_portable_typeface(&p, NULL, SkTypeface::kBold); |
| 57 |
| 58 sk_tool_utils::draw_checkerboard(canvas, SK_ColorLTGRAY, SK_ColorWHITE, 8); |
| 59 |
| 60 SkBitmap bitmap; |
| 61 if (GetResourceAsBitmap("color_wheel.png", &bitmap)) { |
| 62 bitmap.setImmutable(); |
| 63 draw(canvas, p, bitmap, kN32_SkColorType, "Native 32"); |
| 64 |
| 65 canvas->translate(0.0f, SkIntToScalar(SCALE)); |
| 66 SkBitmap copy565 = copy_bitmap(bitmap, kRGB_565_SkColorType); |
| 67 p.setColor(SK_ColorRED); |
| 68 draw(canvas, p, copy565, kRGB_565_SkColorType, "RGB 565"); |
| 69 p.setColor(SK_ColorBLACK); |
| 70 |
| 71 canvas->translate(0.0f, SkIntToScalar(SCALE)); |
| 72 SkBitmap copy4444 = copy_bitmap(bitmap, kARGB_4444_SkColorType); |
| 73 draw(canvas, p, copy4444, kARGB_4444_SkColorType, "ARGB 4444"); |
| 74 } else { |
| 75 canvas->translate(0.0f, SkIntToScalar(2 * SCALE)); |
| 76 } |
| 77 |
| 78 canvas->translate(0.0f, SkIntToScalar(SCALE)); |
| 79 SkBitmap bitmapIndexed; |
| 80 if (GetResourceAsBitmap("color_wheel.gif", &bitmapIndexed)) { |
| 81 bitmapIndexed.setImmutable(); |
| 82 draw(canvas, p, bitmapIndexed, kIndex_8_SkColorType, "Index 8"); |
| 83 } |
| 84 |
| 85 canvas->translate(0.0f, SkIntToScalar(SCALE)); |
| 86 SkBitmap bitmapA8 = make_bitmap(true); |
| 87 draw(canvas, p, bitmapA8, kAlpha_8_SkColorType, "Alpha 8"); |
| 88 |
| 89 p.setColor(SK_ColorRED); |
| 90 canvas->translate(0.0f, SkIntToScalar(SCALE)); |
| 91 SkBitmap bitmapG8 = make_bitmap(false); |
| 92 draw(canvas, p, bitmapG8, kGray_8_SkColorType, "Gray 8"); |
| 93 } |
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