15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 58bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include <algorithm> 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <cmath> 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <stdarg.h> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <stdio.h> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/c/ppb_gamepad.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/c/ppb_input_event.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/completion_callback.h" 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/graphics_2d.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/image_data.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/input_event.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/instance.h" 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/logging.h" 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/module.h" 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/rect.h" 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/var.h" 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/view.h" 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/utility/completion_callback_factory.h" 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void FillRect(pp::ImageData* image, int left, int top, int width, int height, 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32_t color) { 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (int y = std::max(0, top); 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) y < std::min(image->size().height() - 1, top + height); 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) y++) { 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (int x = std::max(0, left); 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) x < std::min(image->size().width() - 1, left + width); 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) x++) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *image->GetAddr32(pp::Point(x, y)) = color; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class MyInstance : public pp::Instance { 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit MyInstance(PP_Instance instance) 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : pp::Instance(instance), 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) width_(0), 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) height_(0), 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) callback_factory_(this), 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gamepad_(NULL) { 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~MyInstance() {} 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual bool Init(uint32_t argc, const char* argn[], const char* argv[]) { 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gamepad_ = reinterpret_cast<const PPB_Gamepad*>( 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pp::Module::Get()->GetBrowserInterface(PPB_GAMEPAD_INTERFACE)); 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!gamepad_) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void DidChangeView(const pp::View& view) { 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pp::Rect rect = view.GetRect(); 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (rect.size().width() == width_ && 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rect.size().height() == height_) 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; // We don't care about the position, only the size. 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) width_ = rect.size().width(); 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) height_ = rect.size().height(); 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) device_context_ = pp::Graphics2D(this, pp::Size(width_, height_), false); 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!BindGraphics(device_context_)) 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Paint(); 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void OnFlush(int32_t) { 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Paint(); 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void Paint() { 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pp::ImageData image = PaintImage(device_context_.size()); 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!image.is_null()) { 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) device_context_.ReplaceContents(&image); 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) device_context_.Flush( 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) callback_factory_.NewCallback(&MyInstance::OnFlush)); 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) printf("NullImage\n"); 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pp::ImageData PaintImage(const pp::Size& size) { 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pp::ImageData image(this, PP_IMAGEDATAFORMAT_BGRA_PREMUL, size, true); 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (image.is_null()) 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return image; 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_GamepadsSampleData gamepad_data; 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gamepad_->Sample(pp_instance(), &gamepad_data); 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (gamepad_data.length > 1 && gamepad_data.items[0].connected) { 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int width2 = size.width() / 2; 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int height2 = size.height() / 2; 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Draw 2 axes 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t i = 0; i < gamepad_data.items[0].axes_length; i += 2) { 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int x = static_cast<int>( 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gamepad_data.items[0].axes[i + 0] * width2 + width2); 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int y = static_cast<int>( 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gamepad_data.items[0].axes[i + 1] * height2 + height2); 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32_t box_bgra = 0x80000000; // Alpha 50%. 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FillRect(&image, x - 3, y - 3, 7, 7, box_bgra); 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t i = 0; i < gamepad_data.items[0].buttons_length; ++i) { 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) float button_val = gamepad_data.items[0].buttons[i]; 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32_t colour = static_cast<uint32_t>((button_val * 192) + 63) << 24; 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int x = i * 8 + 10; 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int y = 10; 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FillRect(&image, x - 3, y - 3, 7, 7, colour); 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return image; 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int width_; 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int height_; 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pp::CompletionCallbackFactory<MyInstance> callback_factory_; 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const PPB_Gamepad* gamepad_; 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pp::Graphics2D device_context_; 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This object is the global object representing this plugin library as long 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// as it is loaded. 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class MyModule : public pp::Module { 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MyModule() : pp::Module() {} 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~MyModule() {} 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Override CreateInstance to create your customized Instance object. 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual pp::Instance* CreateInstance(PP_Instance instance) { 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return new MyInstance(instance); 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace pp { 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Factory function for your specialization of the Module object. 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Module* CreateModule() { 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return new MyModule(); 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace pp 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 151