michael@0: 
michael@0: /*
michael@0:  * Copyright 2011 Google Inc.
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: #include "SkOSWindow_SDL.h"
michael@0: #include "SkCanvas.h"
michael@0: #include "SkColorPriv.h"
michael@0: #include "SkGLCanvas.h"
michael@0: #include "SkOSMenu.h"
michael@0: #include "SkTime.h"
michael@0: 
michael@0: static void post_SkEvent_event() {
michael@0:     SDL_Event evt;
michael@0:     evt.type = SDL_USEREVENT;
michael@0:     evt.user.type = SDL_USEREVENT;
michael@0:     evt.user.code = 0;
michael@0:     evt.user.data1 = NULL;
michael@0:     evt.user.data2 = NULL;
michael@0:     SDL_PushEvent(&evt);
michael@0: }
michael@0: 
michael@0: static bool skia_setBitmapFromSurface(SkBitmap* dst, SDL_Surface* src) {
michael@0:     SkBitmap::Config config;
michael@0: 
michael@0:     switch (src->format->BytesPerPixel) {
michael@0:         case 2:
michael@0:             config = SkBitmap::kRGB_565_Config;
michael@0:             break;
michael@0:         case 4:
michael@0:             config = SkBitmap::kARGB_8888_Config;
michael@0:             break;
michael@0:         default:
michael@0:             return false;
michael@0:     }
michael@0: 
michael@0:     dst->setConfig(config, src->w, src->h, src->pitch);
michael@0:     dst->setPixels(src->pixels);
michael@0:     return true;
michael@0: }
michael@0: 
michael@0: SkOSWindow::SkOSWindow(void* screen) {
michael@0:     fScreen = reinterpret_cast<SDL_Surface*>(screen);
michael@0:     this->resize(fScreen->w, fScreen->h);
michael@0: 
michael@0:     uint32_t rmask = SK_R32_MASK << SK_R32_SHIFT;
michael@0:     uint32_t gmask = SK_G32_MASK << SK_G32_SHIFT;
michael@0:     uint32_t bmask = SK_B32_MASK << SK_B32_SHIFT;
michael@0:     uint32_t amask = SK_A32_MASK << SK_A32_SHIFT;
michael@0: 
michael@0:     if (fScreen->flags & SDL_OPENGL) {
michael@0:         fSurface = NULL;
michael@0:         fGLCanvas = new SkGLCanvas;
michael@0:         fGLCanvas->setViewport(fScreen->w, fScreen->h);
michael@0:     } else {
michael@0:         fGLCanvas = NULL;
michael@0:         fSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, fScreen->w, fScreen->h,
michael@0:                                         32, rmask, gmask, bmask, amask);
michael@0:     }
michael@0: }
michael@0: 
michael@0: SkOSWindow::~SkOSWindow() {
michael@0:     delete fGLCanvas;
michael@0:     if (fSurface) {
michael@0:         SDL_FreeSurface(fSurface);
michael@0:     }
michael@0: }
michael@0: 
michael@0: #include <OpenGL/gl.h>
michael@0: 
michael@0: void SkOSWindow::doDraw() {
michael@0:     if (fGLCanvas) {
michael@0:         glEnable(GL_BLEND);
michael@0:         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
michael@0:         glHint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);
michael@0:         glEnable(GL_TEXTURE_2D);
michael@0:         glClearColor(0, 0, 0, 0);
michael@0:         glClear(GL_COLOR_BUFFER_BIT);
michael@0: 
michael@0:         int count = fGLCanvas->save();
michael@0:         this->draw(fGLCanvas);
michael@0:         fGLCanvas->restoreToCount(count);
michael@0:         SDL_GL_SwapBuffers( );
michael@0:     } else {
michael@0:         if ( SDL_MUSTLOCK(fSurface) ) {
michael@0:             if ( SDL_LockSurface(fSurface) < 0 ) {
michael@0:                 return;
michael@0:             }
michael@0:         }
michael@0: 
michael@0:         SkBitmap bitmap;
michael@0: 
michael@0:         if (skia_setBitmapFromSurface(&bitmap, fSurface)) {
michael@0:             SkCanvas canvas(bitmap);
michael@0:             this->draw(&canvas);
michael@0:         }
michael@0: 
michael@0:         if ( SDL_MUSTLOCK(fSurface) ) {
michael@0:             SDL_UnlockSurface(fSurface);
michael@0:         }
michael@0: 
michael@0:         int result = SDL_BlitSurface(fSurface, NULL, fScreen, NULL);
michael@0:         if (result) {
michael@0:             SkDebugf("------- SDL_BlitSurface returned %d\n", result);
michael@0:         }
michael@0:         SDL_UpdateRect(fScreen, 0, 0, fScreen->w, fScreen->h);
michael@0:     }
michael@0: }
michael@0: 
michael@0: static SkKey find_skkey(SDLKey src) {
michael@0:     // this array must match the enum order in SkKey.h
michael@0:     static const SDLKey gKeys[] = {
michael@0:         SDLK_UNKNOWN,
michael@0:         SDLK_UNKNOWN,   // left softkey
michael@0:         SDLK_UNKNOWN,   // right softkey
michael@0:         SDLK_UNKNOWN,   // home
michael@0:         SDLK_UNKNOWN,   // back
michael@0:         SDLK_UNKNOWN,   // send
michael@0:         SDLK_UNKNOWN,   // end
michael@0:         SDLK_0,
michael@0:         SDLK_1,
michael@0:         SDLK_2,
michael@0:         SDLK_3,
michael@0:         SDLK_4,
michael@0:         SDLK_5,
michael@0:         SDLK_6,
michael@0:         SDLK_7,
michael@0:         SDLK_8,
michael@0:         SDLK_9,
michael@0:         SDLK_ASTERISK,
michael@0:         SDLK_HASH,
michael@0:         SDLK_UP,
michael@0:         SDLK_DOWN,
michael@0:         SDLK_LEFT,
michael@0:         SDLK_RIGHT,
michael@0:         SDLK_RETURN,    // OK
michael@0:         SDLK_UNKNOWN,   // volume up
michael@0:         SDLK_UNKNOWN,   // volume down
michael@0:         SDLK_UNKNOWN,   // power
michael@0:         SDLK_UNKNOWN,   // camera
michael@0:     };
michael@0: 
michael@0:     const SDLKey* array = gKeys;
michael@0:     for (size_t i = 0; i < SK_ARRAY_COUNT(gKeys); i++) {
michael@0:         if (array[i] == src) {
michael@0:             return static_cast<SkKey>(i);
michael@0:         }
michael@0:     }
michael@0:     return kNONE_SkKey;
michael@0: }
michael@0: 
michael@0: void SkOSWindow::handleSDLEvent(const SDL_Event& event) {
michael@0:     switch (event.type) {
michael@0:         case SDL_VIDEORESIZE:
michael@0:             this->resize(event.resize.w, event.resize.h);
michael@0:             break;
michael@0:         case SDL_VIDEOEXPOSE:
michael@0:             this->doDraw();
michael@0:             break;
michael@0:         case SDL_MOUSEMOTION:
michael@0:             if (event.motion.state == SDL_PRESSED) {
michael@0:                 this->handleClick(event.motion.x, event.motion.y,
michael@0:                                    SkView::Click::kMoved_State);
michael@0:             }
michael@0:             break;
michael@0:         case SDL_MOUSEBUTTONDOWN:
michael@0:         case SDL_MOUSEBUTTONUP:
michael@0:             this->handleClick(event.button.x, event.button.y,
michael@0:                                event.button.state == SDL_PRESSED ?
michael@0:                                SkView::Click::kDown_State :
michael@0:                                SkView::Click::kUp_State);
michael@0:             break;
michael@0:         case SDL_KEYDOWN: {
michael@0:             SkKey sk = find_skkey(event.key.keysym.sym);
michael@0:             if (kNONE_SkKey != sk) {
michael@0:                 if (event.key.state == SDL_PRESSED) {
michael@0:                     this->handleKey(sk);
michael@0:                 } else {
michael@0:                     this->handleKeyUp(sk);
michael@0:                 }
michael@0:             }
michael@0:             break;
michael@0:         }
michael@0:         case SDL_USEREVENT:
michael@0:             if (SkEvent::ProcessEvent()) {
michael@0:                 post_SkEvent_event();
michael@0:             }
michael@0:             break;
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkOSWindow::onHandleInval(const SkIRect& r) {
michael@0:     SDL_Event evt;
michael@0:     evt.type = SDL_VIDEOEXPOSE;
michael@0:     evt.expose.type = SDL_VIDEOEXPOSE;
michael@0:     SDL_PushEvent(&evt);
michael@0: }
michael@0: 
michael@0: void SkOSWindow::onSetTitle(const char title[]) {
michael@0:     SDL_WM_SetCaption(title, NULL);
michael@0: }
michael@0: 
michael@0: void SkOSWindow::onAddMenu(const SkOSMenu* sk_menu) {}
michael@0: 
michael@0: ///////////////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: void SkEvent::SignalNonEmptyQueue() {
michael@0:     SkDebugf("-------- signal nonempty\n");
michael@0:     post_SkEvent_event();
michael@0: }
michael@0: 
michael@0: static Uint32 timer_callback(Uint32 interval) {
michael@0: //    SkDebugf("-------- timercallback %d\n", interval);
michael@0:     SkEvent::ServiceQueueTimer();
michael@0:     return 0;
michael@0: }
michael@0: 
michael@0: void SkEvent::SignalQueueTimer(SkMSec delay)
michael@0: {
michael@0:     SDL_SetTimer(0, NULL);
michael@0:     if (delay) {
michael@0:         SDL_SetTimer(delay, timer_callback);
michael@0:     }
michael@0: }