1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "ppapi/cpp/graphics_2d.h"
6
7 #include "ppapi/c/pp_errors.h"
8 #include "ppapi/c/ppb_graphics_2d.h"
9 #include "ppapi/cpp/completion_callback.h"
10 #include "ppapi/cpp/image_data.h"
11 #include "ppapi/cpp/instance_handle.h"
12 #include "ppapi/cpp/module.h"
13 #include "ppapi/cpp/module_impl.h"
14 #include "ppapi/cpp/point.h"
15 #include "ppapi/cpp/rect.h"
16
17 namespace pp {
18
19 namespace {
20
interface_name()21 template <> const char* interface_name<PPB_Graphics2D_1_0>() {
22 return PPB_GRAPHICS_2D_INTERFACE_1_0;
23 }
24
interface_name()25 template <> const char* interface_name<PPB_Graphics2D_1_1>() {
26 return PPB_GRAPHICS_2D_INTERFACE_1_1;
27 }
28
29 } // namespace
30
Graphics2D()31 Graphics2D::Graphics2D() : Resource() {
32 }
33
Graphics2D(const Graphics2D & other)34 Graphics2D::Graphics2D(const Graphics2D& other)
35 : Resource(other),
36 size_(other.size_) {
37 }
38
Graphics2D(const InstanceHandle & instance,const Size & size,bool is_always_opaque)39 Graphics2D::Graphics2D(const InstanceHandle& instance,
40 const Size& size,
41 bool is_always_opaque)
42 : Resource() {
43 if (has_interface<PPB_Graphics2D_1_1>()) {
44 PassRefFromConstructor(get_interface<PPB_Graphics2D_1_1>()->Create(
45 instance.pp_instance(),
46 &size.pp_size(),
47 PP_FromBool(is_always_opaque)));
48 } else if (has_interface<PPB_Graphics2D_1_0>()) {
49 PassRefFromConstructor(get_interface<PPB_Graphics2D_1_0>()->Create(
50 instance.pp_instance(),
51 &size.pp_size(),
52 PP_FromBool(is_always_opaque)));
53 } else {
54 return;
55 }
56 if (!is_null()) {
57 // Only save the size if allocation succeeded.
58 size_ = size;
59 }
60 }
61
~Graphics2D()62 Graphics2D::~Graphics2D() {
63 }
64
operator =(const Graphics2D & other)65 Graphics2D& Graphics2D::operator=(const Graphics2D& other) {
66 Resource::operator=(other);
67 size_ = other.size_;
68 return *this;
69 }
70
PaintImageData(const ImageData & image,const Point & top_left)71 void Graphics2D::PaintImageData(const ImageData& image,
72 const Point& top_left) {
73 if (has_interface<PPB_Graphics2D_1_1>()) {
74 get_interface<PPB_Graphics2D_1_1>()->PaintImageData(pp_resource(),
75 image.pp_resource(),
76 &top_left.pp_point(),
77 NULL);
78 } else if (has_interface<PPB_Graphics2D_1_0>()) {
79 get_interface<PPB_Graphics2D_1_0>()->PaintImageData(pp_resource(),
80 image.pp_resource(),
81 &top_left.pp_point(),
82 NULL);
83 }
84 }
85
PaintImageData(const ImageData & image,const Point & top_left,const Rect & src_rect)86 void Graphics2D::PaintImageData(const ImageData& image,
87 const Point& top_left,
88 const Rect& src_rect) {
89 if (has_interface<PPB_Graphics2D_1_1>()) {
90 get_interface<PPB_Graphics2D_1_1>()->PaintImageData(pp_resource(),
91 image.pp_resource(),
92 &top_left.pp_point(),
93 &src_rect.pp_rect());
94 } else if (has_interface<PPB_Graphics2D_1_0>()) {
95 get_interface<PPB_Graphics2D_1_0>()->PaintImageData(pp_resource(),
96 image.pp_resource(),
97 &top_left.pp_point(),
98 &src_rect.pp_rect());
99 }
100 }
101
Scroll(const Rect & clip,const Point & amount)102 void Graphics2D::Scroll(const Rect& clip, const Point& amount) {
103 if (has_interface<PPB_Graphics2D_1_1>()) {
104 get_interface<PPB_Graphics2D_1_1>()->Scroll(pp_resource(),
105 &clip.pp_rect(),
106 &amount.pp_point());
107 } else if (has_interface<PPB_Graphics2D_1_0>()) {
108 get_interface<PPB_Graphics2D_1_0>()->Scroll(pp_resource(),
109 &clip.pp_rect(),
110 &amount.pp_point());
111 }
112 }
113
ReplaceContents(ImageData * image)114 void Graphics2D::ReplaceContents(ImageData* image) {
115 if (has_interface<PPB_Graphics2D_1_1>()) {
116 get_interface<PPB_Graphics2D_1_1>()->ReplaceContents(pp_resource(),
117 image->pp_resource());
118 } else if (has_interface<PPB_Graphics2D_1_0>()) {
119 get_interface<PPB_Graphics2D_1_0>()->ReplaceContents(pp_resource(),
120 image->pp_resource());
121 } else {
122 return;
123 }
124
125 // On success, reset the image data. This is to help prevent people
126 // from continuing to use the resource which will result in artifacts.
127 *image = ImageData();
128 }
129
Flush(const CompletionCallback & cc)130 int32_t Graphics2D::Flush(const CompletionCallback& cc) {
131 if (has_interface<PPB_Graphics2D_1_1>()) {
132 return get_interface<PPB_Graphics2D_1_1>()->Flush(
133 pp_resource(), cc.pp_completion_callback());
134 } else if (has_interface<PPB_Graphics2D_1_0>()) {
135 return get_interface<PPB_Graphics2D_1_0>()->Flush(
136 pp_resource(), cc.pp_completion_callback());
137 } else {
138 return cc.MayForce(PP_ERROR_NOINTERFACE);
139 }
140 }
141
SetScale(float scale)142 bool Graphics2D::SetScale(float scale) {
143 if (!has_interface<PPB_Graphics2D_1_1>())
144 return false;
145 return PP_ToBool(get_interface<PPB_Graphics2D_1_1>()->SetScale(pp_resource(),
146 scale));
147 }
148
GetScale()149 float Graphics2D::GetScale() {
150 if (!has_interface<PPB_Graphics2D_1_1>())
151 return 1.0f;
152 return get_interface<PPB_Graphics2D_1_1>()->GetScale(pp_resource());
153 }
154
155 } // namespace pp
156