diff options
Diffstat (limited to 'gm/bitmappremul.cpp')
-rw-r--r-- | gm/bitmappremul.cpp | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/gm/bitmappremul.cpp b/gm/bitmappremul.cpp deleted file mode 100644 index 8d0bf697cc..0000000000 --- a/gm/bitmappremul.cpp +++ /dev/null @@ -1,131 +0,0 @@ -/* - * Copyright 2013 Google Inc. - * - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#include "gm.h" -#include "SkBitmap.h" -#include "SkCanvas.h" -#include "SkColorPriv.h" - -/** - * This GM checks that bitmap pixels are unpremultiplied before being exported - * to other formats. If unpremultiplication is implemented properly, this - * GM should come out completely white. If not, this GM looks like a row of two - * greyscale gradients above a row of grey lines. - * This tests both the ARGB4444 and ARGB8888 bitmap configurations. - */ - -static const int SLIDE_SIZE = 256; -static const int PIXEL_SIZE_8888 = SLIDE_SIZE / 256; -static const int PIXEL_SIZE_4444 = SLIDE_SIZE / 16; - -static SkBitmap init_bitmap(SkBitmap::Config config) { - SkBitmap bitmap; - bitmap.setConfig(config, SLIDE_SIZE, SLIDE_SIZE); - bitmap.allocPixels(); - bitmap.eraseColor(SK_ColorWHITE); - return bitmap; -} - -static SkBitmap make_argb8888_gradient() { - SkBitmap bitmap = init_bitmap(SkBitmap::kARGB_8888_Config); - uint8_t rowColor = 0; - for (int y = 0; y < SLIDE_SIZE; y++) { - uint32_t* dst = bitmap.getAddr32(0, y); - for (int x = 0; x < SLIDE_SIZE; x++) { - dst[x] = SkPackARGB32(rowColor, rowColor, - rowColor, rowColor); - } - if (y % PIXEL_SIZE_8888 == PIXEL_SIZE_8888 - 1) { - rowColor++; - } - } - return bitmap; -} - -static SkBitmap make_argb4444_gradient() { - SkBitmap bitmap = init_bitmap(SkBitmap::kARGB_4444_Config); - uint8_t rowColor = 0; - for (int y = 0; y < SLIDE_SIZE; y++) { - uint16_t* dst = bitmap.getAddr16(0, y); - for (int x = 0; x < SLIDE_SIZE; x++) { - dst[x] = SkPackARGB4444(rowColor, rowColor, - rowColor, rowColor); - } - if (y % PIXEL_SIZE_4444 == PIXEL_SIZE_4444 - 1) { - rowColor++; - } - } - return bitmap; -} - -static SkBitmap make_argb8888_stripes() { - SkBitmap bitmap = init_bitmap(SkBitmap::kARGB_8888_Config); - uint8_t rowColor = 0; - for (int y = 0; y < SLIDE_SIZE; y++) { - uint32_t* dst = bitmap.getAddr32(0, y); - for (int x = 0; x < SLIDE_SIZE; x++) { - dst[x] = SkPackARGB32(rowColor, rowColor, - rowColor, rowColor); - } - if (rowColor == 0) { - rowColor = 255; - } else { - rowColor = 0; - } - } - return bitmap; -} - -static SkBitmap make_argb4444_stripes() { - SkBitmap bitmap = init_bitmap(SkBitmap::kARGB_4444_Config); - uint8_t rowColor = 0;; - for (int y = 0; y < SLIDE_SIZE; y++) { - uint16_t* dst = bitmap.getAddr16(0, y); - for (int x = 0; x < SLIDE_SIZE; x++) { - dst[x] = SkPackARGB4444(rowColor, rowColor, - rowColor, rowColor); - } - if (rowColor == 0) { - rowColor = 15; - } else { - rowColor = 0; - } - } - return bitmap; -} - -namespace skiagm { - -class BitmapPremulGM : public GM { -public: - BitmapPremulGM() { - this->setBGColor(SK_ColorWHITE); - } - -protected: - SkString onShortName() SK_OVERRIDE { - return SkString("bitmap_premul"); - } - - virtual SkISize onISize() SK_OVERRIDE { - return SkISize::Make(SLIDE_SIZE * 2, SLIDE_SIZE * 2); - } - - virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { - SkScalar slideSize = SkIntToScalar(SLIDE_SIZE); - canvas->drawBitmap(make_argb8888_gradient(), 0, 0); - canvas->drawBitmap(make_argb4444_gradient(), slideSize, 0); - canvas->drawBitmap(make_argb8888_stripes(), 0, slideSize); - canvas->drawBitmap(make_argb4444_stripes(), slideSize, slideSize); - } - -private: - typedef GM INHERITED; -}; - -DEF_GM( return new BitmapPremulGM; ) -} |