src/ppapi/thunk/ppb_graphics_2d_thunk.cc

   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 // From ppb_graphics_2d.idl modified Fri Apr 26 08:49:08 2013.
   6
   7 #include <string.h>
   8
   9 #include "ppapi/c/pp_completion_callback.h"
  10 #include "ppapi/c/pp_errors.h"
  11 #include "ppapi/c/ppb_graphics_2d.h"
  12 #include "ppapi/shared_impl/tracked_callback.h"
  13 #include "ppapi/thunk/enter.h"
  14 #include "ppapi/thunk/ppb_graphics_2d_api.h"
  15 #include "ppapi/thunk/ppb_instance_api.h"
  16 #include "ppapi/thunk/resource_creation_api.h"
  17 #include "ppapi/thunk/thunk.h"
  18
  19 namespace ppapi {
  20 namespace thunk {
  21
  22 namespace {
  23
  24 PP_Resource Create(PP_Instance instance,
  25                    const struct PP_Size* size,
  26                    PP_Bool is_always_opaque) {
  27   VLOG(4) << "PPB_Graphics2D::Create()";
  28   EnterResourceCreation enter(instance);
  29   if (enter.failed())
  30     return 0;
  31   return enter.functions()->CreateGraphics2D(instance, size, is_always_opaque);
  32 }
  33
  34 PP_Bool IsGraphics2D(PP_Resource resource) {
  35   VLOG(4) << "PPB_Graphics2D::IsGraphics2D()";
  36   EnterResource<PPB_Graphics2D_API> enter(resource, false);
  37   return PP_FromBool(enter.succeeded());
  38 }
  39
  40 PP_Bool Describe(PP_Resource graphics_2d,
  41                  struct PP_Size* size,
  42                  PP_Bool* is_always_opaque) {
  43   VLOG(4) << "PPB_Graphics2D::Describe()";
  44   EnterResource<PPB_Graphics2D_API> enter(graphics_2d, true);
  45   if (enter.failed()) {
  46     memset(size, 0, sizeof(*size));
  47     memset(is_always_opaque, 0, sizeof(*is_always_opaque));
  48     return PP_FALSE;
  49   }
  50   return enter.object()->Describe(size, is_always_opaque);
  51 }
  52
  53 void PaintImageData(PP_Resource graphics_2d,
  54                     PP_Resource image_data,
  55                     const struct PP_Point* top_left,
  56                     const struct PP_Rect* src_rect) {
  57   VLOG(4) << "PPB_Graphics2D::PaintImageData()";
  58   EnterResource<PPB_Graphics2D_API> enter(graphics_2d, true);
  59   if (enter.failed())
  60     return;
  61   enter.object()->PaintImageData(image_data, top_left, src_rect);
  62 }
  63
  64 void Scroll(PP_Resource graphics_2d,
  65             const struct PP_Rect* clip_rect,
  66             const struct PP_Point* amount) {
  67   VLOG(4) << "PPB_Graphics2D::Scroll()";
  68   EnterResource<PPB_Graphics2D_API> enter(graphics_2d, true);
  69   if (enter.failed())
  70     return;
  71   enter.object()->Scroll(clip_rect, amount);
  72 }
  73
  74 void ReplaceContents(PP_Resource graphics_2d, PP_Resource image_data) {
  75   VLOG(4) << "PPB_Graphics2D::ReplaceContents()";
  76   EnterResource<PPB_Graphics2D_API> enter(graphics_2d, true);
  77   if (enter.failed())
  78     return;
  79   enter.object()->ReplaceContents(image_data);
  80 }
  81
  82 int32_t Flush(PP_Resource graphics_2d, struct PP_CompletionCallback callback) {
  83   VLOG(4) << "PPB_Graphics2D::Flush()";
  84   EnterResource<PPB_Graphics2D_API> enter(graphics_2d, callback, true);
  85   if (enter.failed())
  86     return enter.retval();
  87   return enter.SetResult(enter.object()->Flush(enter.callback()));
  88 }
  89
  90 PP_Bool SetScale(PP_Resource resource, float scale) {
  91   VLOG(4) << "PPB_Graphics2D::SetScale()";
  92   EnterResource<PPB_Graphics2D_API> enter(resource, true);
  93   if (enter.failed())
  94     return PP_FALSE;
  95   return enter.object()->SetScale(scale);
  96 }
  97
  98 float GetScale(PP_Resource resource) {
  99   VLOG(4) << "PPB_Graphics2D::GetScale()";
 100   EnterResource<PPB_Graphics2D_API> enter(resource, true);
 101   if (enter.failed())
 102     return 0.0f;
 103   return enter.object()->GetScale();
 104 }
 105
 106 const PPB_Graphics2D_1_0 g_ppb_graphics2d_thunk_1_0 = {
 107   &Create,
 108   &IsGraphics2D,
 109   &Describe,
 110   &PaintImageData,
 111   &Scroll,
 112   &ReplaceContents,
 113   &Flush
 114 };
 115
 116 const PPB_Graphics2D_1_1 g_ppb_graphics2d_thunk_1_1 = {
 117   &Create,
 118   &IsGraphics2D,
 119   &Describe,
 120   &PaintImageData,
 121   &Scroll,
 122   &ReplaceContents,
 123   &Flush,
 124   &SetScale,
 125   &GetScale
 126 };
 127
 128 }  // namespace
 129
 130 const PPB_Graphics2D_1_0* GetPPB_Graphics2D_1_0_Thunk() {
 131   return &g_ppb_graphics2d_thunk_1_0;
 132 }
 133
 134 const PPB_Graphics2D_1_1* GetPPB_Graphics2D_1_1_Thunk() {
 135   return &g_ppb_graphics2d_thunk_1_1;
 136 }
 137
 138 }  // namespace thunk
 139 }  // namespace ppapi