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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ppapi/c/pp_errors.h"
#include "ppapi/cpp/core.h"
#include "ppapi/cpp/graphics_3d.h"
#include "ppapi/cpp/graphics_3d_client.h"
#include "ppapi/cpp/input_event.h"
#include "ppapi/cpp/instance.h"
#include "ppapi/cpp/module.h"
#include "ppapi/cpp/rect.h"
#include "ppapi/examples/gles2_spinning_cube/spinning_cube.h"
#include "ppapi/lib/gl/gles2/gl2ext_ppapi.h"
#include "ppapi/utility/completion_callback_factory.h"
// Use assert as a makeshift CHECK, even in non-debug mode.
// Since <assert.h> redefines assert on every inclusion (it doesn't use
// include-guards), make sure this is the last file #include'd in this file.
#undef NDEBUG
#include <assert.h>
#include <stdint.h>
namespace {
class DemoInstance : public pp::Instance, public pp::Graphics3DClient {
public:
DemoInstance(PP_Instance instance);
virtual ~DemoInstance();
// pp::Instance implementation (see PPP_Instance).
virtual bool Init(uint32_t argc, const char* argn[], const char* argv[]);
virtual void DidChangeView(const pp::Rect& position,
const pp::Rect& clip);
virtual bool HandleInputEvent(const pp::InputEvent& event) {
// TODO(yzshen): Handle input events.
return true;
}
// pp::Graphics3DClient implementation.
virtual void Graphics3DContextLost();
private:
// GL-related functions.
void InitGL(int32_t result);
void Paint(int32_t result);
pp::Size plugin_size_;
pp::CompletionCallbackFactory<DemoInstance> callback_factory_;
// Owned data.
pp::Graphics3D* context_;
SpinningCube cube_;
};
DemoInstance::DemoInstance(PP_Instance instance)
: pp::Instance(instance),
pp::Graphics3DClient(this),
callback_factory_(this),
context_(NULL) {}
DemoInstance::~DemoInstance() {
assert(glTerminatePPAPI());
delete context_;
}
bool DemoInstance::Init(uint32_t /*argc*/,
const char* /*argn*/[],
const char* /*argv*/[]) {
RequestInputEvents(PP_INPUTEVENT_CLASS_MOUSE);
return !!glInitializePPAPI(pp::Module::Get()->get_browser_interface());
}
void DemoInstance::DidChangeView(
const pp::Rect& position, const pp::Rect& /*clip*/) {
if (position.width() == 0 || position.height() == 0)
return;
plugin_size_ = position.size();
// Initialize graphics.
InitGL(0);
}
void DemoInstance::Graphics3DContextLost() {
delete context_;
context_ = NULL;
pp::CompletionCallback cb = callback_factory_.NewCallback(
&DemoInstance::InitGL);
pp::Module::Get()->core()->CallOnMainThread(0, cb, 0);
}
void DemoInstance::InitGL(int32_t /*result*/) {
assert(plugin_size_.width() && plugin_size_.height());
if (context_) {
context_->ResizeBuffers(plugin_size_.width(), plugin_size_.height());
return;
}
int32_t context_attributes[] = {
PP_GRAPHICS3DATTRIB_ALPHA_SIZE, 8,
PP_GRAPHICS3DATTRIB_BLUE_SIZE, 8,
PP_GRAPHICS3DATTRIB_GREEN_SIZE, 8,
PP_GRAPHICS3DATTRIB_RED_SIZE, 8,
PP_GRAPHICS3DATTRIB_DEPTH_SIZE, 0,
PP_GRAPHICS3DATTRIB_STENCIL_SIZE, 0,
PP_GRAPHICS3DATTRIB_SAMPLES, 0,
PP_GRAPHICS3DATTRIB_SAMPLE_BUFFERS, 0,
PP_GRAPHICS3DATTRIB_WIDTH, plugin_size_.width(),
PP_GRAPHICS3DATTRIB_HEIGHT, plugin_size_.height(),
PP_GRAPHICS3DATTRIB_NONE,
};
context_ = new pp::Graphics3D(this, context_attributes);
assert(!context_->is_null());
assert(BindGraphics(*context_));
glSetCurrentContextPPAPI(context_->pp_resource());
cube_.Init(plugin_size_.width(), plugin_size_.height());
Paint(PP_OK);
}
void DemoInstance::Paint(int32_t result) {
if (result != PP_OK || !context_)
return;
cube_.UpdateForTimeDelta(0.02f);
cube_.Draw();
context_->SwapBuffers(callback_factory_.NewCallback(&DemoInstance::Paint));
}
// This object is the global object representing this plugin library as long
// as it is loaded.
class DemoModule : public pp::Module {
public:
DemoModule() : Module() {}
virtual ~DemoModule() {}
virtual pp::Instance* CreateInstance(PP_Instance instance) {
return new DemoInstance(instance);
}
};
} // anonymous namespace
namespace pp {
// Factory function for your specialization of the Module object.
Module* CreateModule() {
return new DemoModule();
}
} // namespace pp
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