add SDL support
git-svn-id: http://skia.googlecode.com/svn/trunk@182 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/utils/SDL/SkOSWindow_SDL.cpp b/src/utils/SDL/SkOSWindow_SDL.cpp
new file mode 100644
index 0000000..13bea72
--- /dev/null
+++ b/src/utils/SDL/SkOSWindow_SDL.cpp
@@ -0,0 +1,175 @@
+#include "SkOSWindow_SDL.h"
+#include "SkCanvas.h"
+#include "SkOSMenu.h"
+#include "SkTime.h"
+
+static void post_SkEvent_event() {
+ SDL_Event evt;
+ evt.type = SDL_USEREVENT;
+ evt.user.type = SDL_USEREVENT;
+ evt.user.code = 0;
+ evt.user.data1 = NULL;
+ evt.user.data2 = NULL;
+ SDL_PushEvent(&evt);
+}
+
+static bool skia_setBitmapFromSurface(SkBitmap* dst, SDL_Surface* src) {
+ SkBitmap::Config config;
+
+ switch (src->format->BytesPerPixel) {
+ case 2:
+ config = SkBitmap::kRGB_565_Config;
+ break;
+ case 4:
+ config = SkBitmap::kARGB_8888_Config;
+ break;
+ default:
+ return false;
+ }
+
+ dst->setConfig(config, src->w, src->h, src->pitch);
+ dst->setPixels(src->pixels);
+ return true;
+}
+
+SkOSWindow::SkOSWindow(void* surface) {
+ fSurface = reinterpret_cast<SDL_Surface*>(surface);
+ this->resize(fSurface->w, fSurface->h);
+}
+
+void SkOSWindow::doDraw() {
+ if ( SDL_MUSTLOCK(fSurface) ) {
+ if ( SDL_LockSurface(fSurface) < 0 ) {
+ return;
+ }
+ }
+
+ SkBitmap bitmap;
+
+ if (skia_setBitmapFromSurface(&bitmap, fSurface)) {
+ SkCanvas canvas(bitmap);
+ this->draw(&canvas);
+ }
+
+ if ( SDL_MUSTLOCK(fSurface) ) {
+ SDL_UnlockSurface(fSurface);
+ }
+ SDL_UpdateRect(fSurface, 0, 0, fSurface->w, fSurface->h);
+}
+
+static SkKey find_skkey(SDLKey src) {
+ // this array must match the enum order in SkKey.h
+ static const SDLKey gKeys[] = {
+ SDLK_UNKNOWN,
+ SDLK_UNKNOWN, // left softkey
+ SDLK_UNKNOWN, // right softkey
+ SDLK_UNKNOWN, // home
+ SDLK_UNKNOWN, // back
+ SDLK_UNKNOWN, // send
+ SDLK_UNKNOWN, // end
+ SDLK_0,
+ SDLK_1,
+ SDLK_2,
+ SDLK_3,
+ SDLK_4,
+ SDLK_5,
+ SDLK_6,
+ SDLK_7,
+ SDLK_8,
+ SDLK_9,
+ SDLK_ASTERISK,
+ SDLK_HASH,
+ SDLK_UP,
+ SDLK_DOWN,
+ SDLK_LEFT,
+ SDLK_RIGHT,
+ SDLK_RETURN, // OK
+ SDLK_UNKNOWN, // volume up
+ SDLK_UNKNOWN, // volume down
+ SDLK_UNKNOWN, // power
+ SDLK_UNKNOWN, // camera
+ };
+
+ const SDLKey* array = gKeys;
+ for (size_t i = 0; i < SK_ARRAY_COUNT(gKeys); i++) {
+ if (array[i] == src) {
+ return static_cast<SkKey>(i);
+ }
+ }
+ return kNONE_SkKey;
+}
+
+void SkOSWindow::handleSDLEvent(const SDL_Event& event) {
+ switch (event.type) {
+ case SDL_VIDEORESIZE:
+ this->resize(event.resize.w, event.resize.h);
+ break;
+ case SDL_VIDEOEXPOSE:
+ this->doDraw();
+ break;
+ case SDL_MOUSEMOTION:
+ if (event.motion.state == SDL_PRESSED) {
+ this->handleClick(event.motion.x, event.motion.y,
+ SkView::Click::kMoved_State);
+ }
+ break;
+ case SDL_MOUSEBUTTONDOWN:
+ case SDL_MOUSEBUTTONUP:
+ this->handleClick(event.button.x, event.button.y,
+ event.button.state == SDL_PRESSED ?
+ SkView::Click::kDown_State :
+ SkView::Click::kUp_State);
+ break;
+ case SDL_KEYDOWN: {
+ SkKey sk = find_skkey(event.key.keysym.sym);
+ if (kNONE_SkKey != sk) {
+ if (event.key.state == SDL_PRESSED) {
+ this->handleKey(sk);
+ } else {
+ this->handleKeyUp(sk);
+ }
+ }
+ break;
+ }
+ case SDL_USEREVENT:
+ if (SkEvent::ProcessEvent()) {
+ post_SkEvent_event();
+ }
+ break;
+ }
+}
+
+void SkOSWindow::onHandleInval(const SkIRect& r) {
+ SDL_Event evt;
+ evt.type = SDL_VIDEOEXPOSE;
+ evt.expose.type = SDL_VIDEOEXPOSE;
+ SDL_PushEvent(&evt);
+}
+
+void SkOSWindow::onSetTitle(const char title[]) {
+ SDL_WM_SetCaption(title, NULL);
+}
+
+void SkOSWindow::onAddMenu(const SkOSMenu* sk_menu) {}
+
+///////////////////////////////////////////////////////////////////////////////////////
+
+void SkEvent::SignalNonEmptyQueue() {
+ SkDebugf("-------- signal nonempty\n");
+ post_SkEvent_event();
+}
+
+static Uint32 timer_callback(Uint32 interval) {
+// SkDebugf("-------- timercallback %d\n", interval);
+ SkEvent::ServiceQueueTimer();
+ return 0;
+}
+
+void SkEvent::SignalQueueTimer(SkMSec delay)
+{
+ SDL_SetTimer(0, NULL);
+ if (delay) {
+ SDL_SetTimer(delay, timer_callback);
+ }
+}
+