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Issue 11053003: Migrate Graphics2D to new design. (Closed) Base URL: http://git.chromium.org/chromium/src.git@master
Patch Set: Created 1 year, 5 months ago
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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/proxy/graphics_2d_resource.h"
6
7 #include "ppapi/c/ppb_graphics_2d.h"
8 #include "ppapi/c/pp_bool.h"
9 #include "ppapi/c/pp_point.h"
10 #include "ppapi/c/pp_rect.h"
11 #include "ppapi/c/pp_resource.h"
12 #include "ppapi/c/pp_size.h"
13 #include "ppapi/proxy/dispatch_reply_message.h"
14 #include "ppapi/proxy/ppapi_messages.h"
15 #include "ppapi/proxy/ppb_image_data_proxy.h"
16 #include "ppapi/shared_impl/ppapi_globals.h"
17 #include "ppapi/shared_impl/resource_tracker.h"
18 #include "ppapi/shared_impl/tracked_callback.h"
19 #include "ppapi/thunk/enter.h"
20
21 namespace ppapi {
22 namespace proxy {
23
24 Graphics2DResource::Graphics2DResource(Connection connection,
25 PP_Instance instance,
26 const PP_Size& size,
27 PP_Bool is_always_opaque)
28 : PluginResource(connection, instance),
29 size_(size),
30 is_always_opaque_(is_always_opaque),
31 scale_(1.0f) {
32 // These checks are copied from PPB_ImageData_Impl::Init to make tests passed.
33 // Let's remove/refactor this when start to refactor ImageData.
34 bool bad_args = size.width <= 0 || size.height <= 0 ||
35 static_cast<int64>(size.width) * static_cast<int64>(size.height) * 4 >=
36 std::numeric_limits<int32>::max();
Cris Neckar 2012/11/14 02:03:46 when width * height * 4 wraps the 64 bit integer t
victorhsieh 2012/11/14 02:25:52 I think the int32 max will be promoted to int64 wh
37 if (!bad_args && !sent_create_to_renderer()) {
38 SendCreate(RENDERER,
39 PpapiHostMsg_Graphics2D_Create(size, is_always_opaque));
40 }
41 }
42
43 Graphics2DResource::~Graphics2DResource() {
44 }
45
46 PP_Bool Graphics2DResource::Describe(PP_Size* size, PP_Bool* is_always_opaque) {
47 *size = size_;
48 *is_always_opaque = is_always_opaque_;
49 return PP_TRUE;
50 }
51
52 thunk::PPB_Graphics2D_API* Graphics2DResource::AsPPB_Graphics2D_API() {
53 return this;
54 }
55
56 void Graphics2DResource::PaintImageData(PP_Resource image_data,
57 const PP_Point* top_left,
58 const PP_Rect* src_rect) {
59 Resource* image_object =
60 PpapiGlobals::Get()->GetResourceTracker()->GetResource(image_data);
61 if (!image_object || pp_instance() != image_object->pp_instance()) {
62 Log(PP_LOGLEVEL_ERROR,
63 "Graphics2DResource.PaintImageData: Bad image resource.");
64 return;
65 }
66
67 PP_Rect dummy;
68 memset(&dummy, 0, sizeof(PP_Rect));
69 Post(RENDERER, PpapiHostMsg_Graphics2D_PaintImageData(
70 image_object->host_resource(), *top_left,
71 !!src_rect, src_rect ? *src_rect : dummy));
72 }
73
74 void Graphics2DResource::Scroll(const PP_Rect* clip_rect,
75 const PP_Point* amount) {
76 PP_Rect dummy;
77 memset(&dummy, 0, sizeof(PP_Rect));
78 Post(RENDERER, PpapiHostMsg_Graphics2D_Scroll(
79 !!clip_rect, clip_rect ? *clip_rect : dummy, *amount));
80 }
81
82 void Graphics2DResource::ReplaceContents(PP_Resource image_data) {
83 thunk::EnterResourceNoLock<thunk::PPB_ImageData_API> enter_image(
84 image_data, true);
85 if (enter_image.failed())
86 return;
87
88 ImageData* image_object = static_cast<ImageData*>(enter_image.object());
89 if (pp_instance() != image_object->pp_instance()) {
90 Log(PP_LOGLEVEL_ERROR, "Graphics2DResource.ReplaceContents: "
91 "Image resource for another instance.");
92 return;
93 }
94 image_object->set_used_in_replace_contents();
95
96 Post(RENDERER, PpapiHostMsg_Graphics2D_ReplaceContents(
97 image_object->host_resource()));
98 }
99
100 bool Graphics2DResource::SetScale(float scale) {
101 if (scale <= 0.0f)
102 return false;
103 Post(RENDERER, PpapiHostMsg_Graphics2D_Dev_SetScale(scale));
104 scale_ = scale;
105 return true;
106 }
107
108 float Graphics2DResource::GetScale() {
109 return scale_;
110 }
111
112 int32_t Graphics2DResource::Flush(scoped_refptr<TrackedCallback> callback,
113 PP_Resource* old_image_data) {
114 // If host is not even created, return failure immediately. This can happen
115 // when failed to initialize (in constructor).
116 if (!sent_create_to_renderer())
117 return PP_ERROR_FAILED;
118
119 // We don't support this feature, it's for in-renderer only.
120 if (old_image_data)
121 *old_image_data = 0;
122
123 if (TrackedCallback::IsPending(current_flush_callback_))
124 return PP_ERROR_INPROGRESS; // Can't have >1 flush pending.
125 current_flush_callback_ = callback;
126
127 Call<PpapiPluginMsg_Graphics2D_FlushAck>(
128 RENDERER,
129 PpapiHostMsg_Graphics2D_Flush(),
130 base::Bind(&Graphics2DResource::OnPluginMsgFlushACK, this));
131 return PP_OK_COMPLETIONPENDING;
132 }
133
134 bool Graphics2DResource::ReadImageData(PP_Resource image,
135 const PP_Point* top_left) {
136 if (!top_left)
137 return false;
138 int32_t result = SyncCall<PpapiPluginMsg_Graphics2D_ReadImageDataAck>(
139 RENDERER,
140 PpapiHostMsg_Graphics2D_ReadImageData(image, *top_left));
141 return result == PP_OK;
142 }
143
144 void Graphics2DResource::OnPluginMsgFlushACK(
145 const ResourceMessageReplyParams& params) {
146 current_flush_callback_->Run(params.result());
147 }
148
149 } // namespace proxy
150 } // namespace ppapi
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