xref: /aosp_15_r20/external/skia/docs/examples/Pixmap_shiftPerPixel.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1*c8dee2aaSAndroid Build Coastguard Worker // Copyright 2019 Google LLC.
2*c8dee2aaSAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3*c8dee2aaSAndroid Build Coastguard Worker #include "tools/fiddle/examples.h"
4*c8dee2aaSAndroid Build Coastguard Worker REG_FIDDLE(Pixmap_shiftPerPixel, 256, 256, true, 0) {
color_type(SkColorType ct)5*c8dee2aaSAndroid Build Coastguard Worker const char* color_type(SkColorType ct) {
6*c8dee2aaSAndroid Build Coastguard Worker     switch (ct) {
7*c8dee2aaSAndroid Build Coastguard Worker         case kUnknown_SkColorType:      return "Unknown";
8*c8dee2aaSAndroid Build Coastguard Worker         case kAlpha_8_SkColorType:      return "Alpha_8";
9*c8dee2aaSAndroid Build Coastguard Worker         case kRGB_565_SkColorType:      return "RGB_565";
10*c8dee2aaSAndroid Build Coastguard Worker         case kARGB_4444_SkColorType:    return "ARGB_4444";
11*c8dee2aaSAndroid Build Coastguard Worker         case kRGBA_8888_SkColorType:    return "RGBA_8888";
12*c8dee2aaSAndroid Build Coastguard Worker         case kRGB_888x_SkColorType:     return "RGB_888x";
13*c8dee2aaSAndroid Build Coastguard Worker         case kBGRA_8888_SkColorType:    return "BGRA_8888";
14*c8dee2aaSAndroid Build Coastguard Worker         case kRGBA_1010102_SkColorType: return "RGBA_1010102";
15*c8dee2aaSAndroid Build Coastguard Worker         case kRGB_101010x_SkColorType:  return "RGB_101010x";
16*c8dee2aaSAndroid Build Coastguard Worker         case kGray_8_SkColorType:       return "Gray_8";
17*c8dee2aaSAndroid Build Coastguard Worker         case kRGBA_F16Norm_SkColorType: return "RGBA_F16Norm";
18*c8dee2aaSAndroid Build Coastguard Worker         case kRGBA_F16_SkColorType:     return "RGBA_F16";
19*c8dee2aaSAndroid Build Coastguard Worker         case kRGBA_F32_SkColorType:     return "RGBA_F32";
20*c8dee2aaSAndroid Build Coastguard Worker         default: SkASSERT(false); return nullptr;
21*c8dee2aaSAndroid Build Coastguard Worker     }
22*c8dee2aaSAndroid Build Coastguard Worker }
draw(SkCanvas * canvas)23*c8dee2aaSAndroid Build Coastguard Worker void draw(SkCanvas* canvas) {
24*c8dee2aaSAndroid Build Coastguard Worker     SkImageInfo info = SkImageInfo::MakeA8(1, 1);
25*c8dee2aaSAndroid Build Coastguard Worker     for (SkColorType colorType : { kUnknown_SkColorType,   kAlpha_8_SkColorType,
26*c8dee2aaSAndroid Build Coastguard Worker                                    kRGB_565_SkColorType,   kARGB_4444_SkColorType,
27*c8dee2aaSAndroid Build Coastguard Worker                                    kRGBA_8888_SkColorType, kBGRA_8888_SkColorType,
28*c8dee2aaSAndroid Build Coastguard Worker                                    kGray_8_SkColorType,    kRGBA_F16_SkColorType } ) {
29*c8dee2aaSAndroid Build Coastguard Worker         SkPixmap pixmap(info.makeColorType(colorType), nullptr, 4);
30*c8dee2aaSAndroid Build Coastguard Worker         SkDebugf("color: k" "%s" "_SkColorType" "%*s" "bytesPerPixel: %d shiftPerPixel: %d\n",
31*c8dee2aaSAndroid Build Coastguard Worker                 color_type(colorType), (int)(10 - strlen(color_type(colorType))), " ",
32*c8dee2aaSAndroid Build Coastguard Worker                 pixmap.info().bytesPerPixel(), pixmap.shiftPerPixel());
33*c8dee2aaSAndroid Build Coastguard Worker     }
34*c8dee2aaSAndroid Build Coastguard Worker }
35*c8dee2aaSAndroid Build Coastguard Worker }  // END FIDDLE
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