1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
|
// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gfx/canvas_direct2d.h"
#include "gfx/rect.h"
namespace {
// Converts a SkColor to a ColorF.
D2D1_COLOR_F SkColorToColorF(SkColor color) {
return D2D1::ColorF(static_cast<float>(SkColorGetR(color)) / 0xFF,
static_cast<float>(SkColorGetG(color)) / 0xFF,
static_cast<float>(SkColorGetB(color)) / 0xFF,
static_cast<float>(SkColorGetA(color)) / 0xFF);
}
D2D1_RECT_F RectToRectF(int x, int y, int w, int h) {
return D2D1::RectF(static_cast<float>(x), static_cast<float>(y),
static_cast<float>(x + w), static_cast<float>(y + h));
}
D2D1_RECT_F RectToRectF(const gfx::Rect& rect) {
return RectToRectF(rect.x(), rect.y(), rect.width(), rect.height());
}
} // namespace
namespace gfx {
// static
ID2D1Factory* CanvasDirect2D::d2d1_factory_ = NULL;
////////////////////////////////////////////////////////////////////////////////
// CanvasDirect2D, public:
CanvasDirect2D::CanvasDirect2D(ID2D1RenderTarget* rt) : rt_(rt) {
// A RenderState entry is pushed onto the stack to track the clip count prior
// to any calls to Save*().
state_.push(RenderState());
rt_->BeginDraw();
}
CanvasDirect2D::~CanvasDirect2D() {
// Unwind any clips that were pushed outside of any Save*()/Restore() pairs.
int clip_count = state_.top().clip_count;
for (int i = 0; i < clip_count; ++i)
rt_->PopAxisAlignedClip();
rt_->EndDraw();
}
// static
ID2D1Factory* CanvasDirect2D::GetD2D1Factory() {
if (!d2d1_factory_)
D2D1CreateFactory(D2D1_FACTORY_TYPE_SINGLE_THREADED, &d2d1_factory_);
return d2d1_factory_;
}
////////////////////////////////////////////////////////////////////////////////
// CanvasDirect2D, Canvas implementation:
void CanvasDirect2D::Save() {
SaveInternal(NULL);
}
void CanvasDirect2D::SaveLayerAlpha(uint8 alpha) {
SaveLayerAlpha(alpha, gfx::Rect());
}
void CanvasDirect2D::SaveLayerAlpha(uint8 alpha,
const gfx::Rect& layer_bounds) {
D2D1_RECT_F bounds = D2D1::InfiniteRect();
if (!layer_bounds.IsEmpty())
bounds = RectToRectF(layer_bounds);
ID2D1Layer* layer = NULL;
HRESULT hr = rt_->CreateLayer(NULL, &layer);
if (SUCCEEDED(hr)) {
rt_->PushLayer(D2D1::LayerParameters(bounds,
NULL,
D2D1_ANTIALIAS_MODE_PER_PRIMITIVE,
D2D1::IdentityMatrix(),
static_cast<float>(alpha) / 0xFF,
NULL,
D2D1_LAYER_OPTIONS_NONE),
layer);
}
SaveInternal(layer);
}
void CanvasDirect2D::Restore() {
ID2D1Layer* layer = state_.top().layer;
if (layer) {
rt_->PopLayer();
layer->Release();
}
int clip_count = state_.top().clip_count;
for (int i = 0; i < clip_count; ++i)
rt_->PopAxisAlignedClip();
state_.pop();
// The state_ stack should never be empty - we should always have at least one
// entry to hold a clip count when there is no active save/restore entry.
CHECK(!state_.empty()) << "Called Restore() once too often!";
rt_->RestoreDrawingState(drawing_state_block_);
}
bool CanvasDirect2D::ClipRectInt(int x, int y, int w, int h) {
rt_->PushAxisAlignedClip(RectToRectF(x, y, w, h),
D2D1_ANTIALIAS_MODE_PER_PRIMITIVE);
// Increment the clip count so the call to PushAxisAlignedClip() can be
// balanced with a call to PopAxisAlignedClip in the next Restore().
++state_.top().clip_count;
return w > 0 && h > 0;
}
void CanvasDirect2D::TranslateInt(int x, int y) {
D2D1_MATRIX_3X2_F raw;
rt_->GetTransform(&raw);
D2D1::Matrix3x2F transform(raw._11, raw._12, raw._21, raw._22, raw._31,
raw._32);
transform = D2D1::Matrix3x2F::Translation(static_cast<float>(x),
static_cast<float>(y)) * transform;
rt_->SetTransform(transform);
}
void CanvasDirect2D::ScaleInt(int x, int y) {
D2D1_MATRIX_3X2_F raw;
rt_->GetTransform(&raw);
D2D1::Matrix3x2F transform(raw._11, raw._12, raw._21, raw._22, raw._31,
raw._32);
transform = D2D1::Matrix3x2F::Scale(static_cast<float>(x),
static_cast<float>(y)) * transform;
rt_->SetTransform(transform);
}
void CanvasDirect2D::FillRectInt(int x, int y, int w, int h,
const SkPaint& paint) {
}
void CanvasDirect2D::FillRectInt(const SkColor& color, int x, int y, int w,
int h) {
ScopedComPtr<ID2D1SolidColorBrush> solid_brush;
rt_->CreateSolidColorBrush(SkColorToColorF(color), solid_brush.Receive());
rt_->FillRectangle(RectToRectF(x, y, w, h), solid_brush);
}
void CanvasDirect2D::DrawRectInt(const SkColor& color, int x, int y, int w,
int h) {
}
void CanvasDirect2D::DrawRectInt(const SkColor& color, int x, int y, int w,
int h, SkXfermode::Mode mode) {
}
void CanvasDirect2D::DrawLineInt(const SkColor& color, int x1, int y1, int x2,
int y2) {
}
void CanvasDirect2D::DrawBitmapInt(const SkBitmap& bitmap, int x, int y) {
}
void CanvasDirect2D::DrawBitmapInt(const SkBitmap& bitmap, int x, int y,
const SkPaint& paint) {
}
void CanvasDirect2D::DrawBitmapInt(const SkBitmap& bitmap, int src_x, int src_y,
int src_w, int src_h, int dest_x, int dest_y,
int dest_w, int dest_h, bool filter) {
}
void CanvasDirect2D::DrawBitmapInt(const SkBitmap& bitmap, int src_x, int src_y,
int src_w, int src_h, int dest_x, int dest_y,
int dest_w, int dest_h, bool filter,
const SkPaint& paint) {
}
void CanvasDirect2D::DrawStringInt(const std::wstring& text,
const gfx::Font& font,
const SkColor& color, int x, int y, int w,
int h) {
}
void CanvasDirect2D::DrawStringInt(const std::wstring& text,
const gfx::Font& font,
const SkColor& color,
const gfx::Rect& display_rect) {
}
void CanvasDirect2D::DrawStringInt(const std::wstring& text,
const gfx::Font& font,
const SkColor& color,
int x, int y, int w, int h,
int flags) {
}
void CanvasDirect2D::DrawFocusRect(int x, int y, int width, int height) {
}
void CanvasDirect2D::TileImageInt(const SkBitmap& bitmap, int x, int y, int w,
int h) {
}
void CanvasDirect2D::TileImageInt(const SkBitmap& bitmap, int src_x, int src_y,
int dest_x, int dest_y, int w, int h) {
}
gfx::NativeDrawingContext CanvasDirect2D::BeginPlatformPaint() {
DCHECK(!interop_rt_.get());
interop_rt_.QueryFrom(rt_);
HDC dc = NULL;
if (interop_rt_.get())
interop_rt_->GetDC(D2D1_DC_INITIALIZE_MODE_COPY, &dc);
return dc;
}
void CanvasDirect2D::EndPlatformPaint() {
DCHECK(interop_rt_.get());
interop_rt_->ReleaseDC(NULL);
interop_rt_.release();
}
CanvasSkia* CanvasDirect2D::AsCanvasSkia() {
return NULL;
}
const CanvasSkia* CanvasDirect2D::AsCanvasSkia() const {
return NULL;
}
////////////////////////////////////////////////////////////////////////////////
// CanvasDirect2D, private:
void CanvasDirect2D::SaveInternal(ID2D1Layer* layer) {
if (!drawing_state_block_)
GetD2D1Factory()->CreateDrawingStateBlock(drawing_state_block_.Receive());
rt_->SaveDrawingState(drawing_state_block_.get());
state_.push(RenderState(layer));
}
} // namespace gfx
|
