Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(56)

Side by Side Diff: gm/patchgrid.cpp

Issue 451723003: SkPatchGrid interface (after SkPatch/SkPicture rebase). (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Use fXferMode Created 6 years, 4 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
« no previous file with comments | « gm/patch.cpp ('k') | gyp/gmslides.gypi » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
(Empty)
1
2 /*
3 * Copyright 2014 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8
9 #include "gm.h"
10 #include "SkPatchGrid.h"
11
12 static void draw_control_points(SkCanvas* canvas, const SkPoint cubics[12]) {
13 //draw control points
14 SkPaint paint;
15 SkPoint bottom[4];
16 SkPatchUtils::getBottomCubic(cubics, bottom);
17 SkPoint top[4];
18 SkPatchUtils::getTopCubic(cubics, top);
19 SkPoint left[4];
20 SkPatchUtils::getLeftCubic(cubics, left);
21 SkPoint right[4];
22 SkPatchUtils::getRightCubic(cubics, right);
23
24 paint.setColor(SK_ColorBLACK);
25 paint.setStrokeWidth(0.5);
26 SkPoint corners[4] = { bottom[0], bottom[3], top[0], top[3] };
27 canvas->drawPoints(SkCanvas::kLines_PointMode, 4, bottom, paint);
28 canvas->drawPoints(SkCanvas::kLines_PointMode, 2, bottom+1, paint);
29 canvas->drawPoints(SkCanvas::kLines_PointMode, 4, top, paint);
30 canvas->drawPoints(SkCanvas::kLines_PointMode, 4, left, paint);
31 canvas->drawPoints(SkCanvas::kLines_PointMode, 4, right, paint);
32
33 canvas->drawPoints(SkCanvas::kLines_PointMode, 2, top+1, paint);
34 canvas->drawPoints(SkCanvas::kLines_PointMode, 2, left+1, paint);
35 canvas->drawPoints(SkCanvas::kLines_PointMode, 2, right+1, paint);
36
37 paint.setStrokeWidth(2);
38
39 paint.setColor(SK_ColorRED);
40 canvas->drawPoints(SkCanvas::kPoints_PointMode, 4, corners, paint);
41
42 paint.setColor(SK_ColorBLUE);
43 canvas->drawPoints(SkCanvas::kPoints_PointMode, 2, bottom+1, paint);
44
45 paint.setColor(SK_ColorCYAN);
46 canvas->drawPoints(SkCanvas::kPoints_PointMode, 2, top+1, paint);
47
48 paint.setColor(SK_ColorYELLOW);
49 canvas->drawPoints(SkCanvas::kPoints_PointMode, 2, left+1, paint);
50
51 paint.setColor(SK_ColorGREEN);
52 canvas->drawPoints(SkCanvas::kPoints_PointMode, 2, right+1, paint);
53 }
54
55 namespace skiagm {
56 /**
57 * This GM draws a grid of patches, it only uses colors so it could be considere d a mesh gradient.
58 */
59 class SkPatchGridGM : public GM {
60
61 public:
62 SkPatchGridGM() {
63 this->setBGColor(0xFFFFFFFF);
64 }
65
66 protected:
67 virtual SkString onShortName() SK_OVERRIDE {
68 return SkString("patch_grid");
69 }
70
71 virtual SkISize onISize() SK_OVERRIDE {
72 return SkISize::Make(800, 800);
73 }
74
75 virtual uint32_t onGetFlags() const SK_OVERRIDE {
76 return kSkipTiled_Flag;
77 }
78
79 virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
80
81 SkPaint paint;
82
83 SkPoint vertices[4][5] = {
84 {{50,50}, {150,50}, {250,50},{350,50},{450,50}},
85 {{50,150}, {120,120}, {250,150},{350,150},{450,150}},
86 {{50,250}, {150,250}, {250,250},{350,250},{450,250}},
87 {{100,300}, {150,350}, {250,350},{350,350},{450,350}}
88 };
89
90 SkColor cornerColors[4][5] = {
91 {SK_ColorBLUE, SK_ColorRED, SK_ColorBLUE, SK_ColorRED, SK_ColorBLUE} ,
92 {SK_ColorRED, SK_ColorBLUE, SK_ColorRED, SK_ColorBLUE, SK_ColorRED},
93 {SK_ColorBLUE, SK_ColorRED, SK_ColorBLUE, SK_ColorRED, SK_ColorBLUE} ,
94 {SK_ColorRED, SK_ColorBLUE, SK_ColorRED, SK_ColorBLUE, SK_ColorRED},
95 };
96
97 SkPoint hrzCtrl[4][8] = {
98 {{75,30},{125,45},{175,70},{225,20},{275,50},{325,50},{375,5},{425,9 0}},
99 {{75,150},{125,150},{175,150},{225,150},{275,150},{325,150},{375,150 },{425,150}},
100 {{75,250},{125,250},{175,250},{225,250},{275,200},{325,150},{375,250 },{425,250}},
101 {{75,350},{125,350},{175,350},{225,350},{275,350},{325,350},{375,350 },{425,350}}
102 };
103
104 SkPoint vrtCtrl[6][5] = {
105 {{50,75},{150,75},{250,75},{350,75},{450,75}},
106 {{50,125},{150,125},{250,125},{350,125},{450,125}},
107 {{50,175},{150,175},{220,225},{350,175},{470,225}},
108 {{50,225},{150,225},{220,175},{350,225},{470,155}},
109 {{50,275},{150,275},{250,275},{350,275},{400,305}},
110 {{50,325},{150,325},{250,325},{350,325},{450,325}}
111 };
112
113 static const int kRows = 3;
114 static const int kCols = 4;
115
116 canvas->scale(3, 3);
117 SkPatchGrid grid(kRows, kCols, SkPatchGrid::kColors_VertexType, NULL);
118 for (int i = 0; i < kRows; i++) {
119 for (int j = 0; j < kCols; j++) {
120 SkPoint points[12];
121
122 //set corners
123 points[SkPatchUtils::kTopP0_CubicCtrlPts] = vertices[i][j];
124 points[SkPatchUtils::kTopP3_CubicCtrlPts] = vertices[i][j + 1];
125 points[SkPatchUtils::kBottomP0_CubicCtrlPts] = vertices[i + 1][j ];
126 points[SkPatchUtils::kBottomP3_CubicCtrlPts] = vertices[i + 1][j + 1];
127
128 points[SkPatchUtils::kTopP1_CubicCtrlPts] = hrzCtrl[i][j * 2];
129 points[SkPatchUtils::kTopP2_CubicCtrlPts] = hrzCtrl[i][j * 2 + 1 ];
130 points[SkPatchUtils::kBottomP1_CubicCtrlPts] = hrzCtrl[i + 1][j * 2];
131 points[SkPatchUtils::kBottomP2_CubicCtrlPts] = hrzCtrl[i + 1][j * 2 + 1];
132
133 points[SkPatchUtils::kLeftP1_CubicCtrlPts] = vrtCtrl[i * 2][j];
134 points[SkPatchUtils::kLeftP2_CubicCtrlPts] = vrtCtrl[i * 2 + 1][ j];
135 points[SkPatchUtils::kRightP1_CubicCtrlPts] = vrtCtrl[i * 2][j + 1];
136 points[SkPatchUtils::kRightP2_CubicCtrlPts] = vrtCtrl[i * 2 + 1] [j + 1];
137
138 SkColor colors[4];
139 colors[0] = cornerColors[i][j];
140 colors[1] = cornerColors[i][j + 1];
141 colors[3] = cornerColors[i + 1][j];
142 colors[2] = cornerColors[i + 1][j + 1];
143
144 grid.setPatch(j, i, points, colors, NULL);
145 }
146 }
147
148 grid.draw(canvas, paint);
149 SkISize dims = grid.getDimensions();
150 for (int y = 0; y < dims.height(); y++) {
151 for (int x = 0; x < dims.width(); x++) {
152 SkPoint cubics[12];
153 grid.getPatch(x, y, cubics, NULL, NULL);
154 draw_control_points(canvas, cubics);
155 }
156 }
157 }
158
159 private:
160 typedef GM INHERITED;
161 };
162
163 DEF_GM(return SkNEW(SkPatchGridGM); )
164
165 }
OLDNEW
« no previous file with comments | « gm/patch.cpp ('k') | gyp/gmslides.gypi » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698