vcs.maemo.org Git - drnoksnes/blob - platform/sdli.cpp

   1 #include <SDL.h>
   2 #include <math.h>
   3
   4 #include "platform.h"
   5 #include "snes9x.h"
   6 #include "display.h"
   7
   8 struct TouchButton {
   9         unsigned short mask;
  10         unsigned short x, y;
  11         unsigned short x2, y2;
  12         double fx, fy;
  13         double fw, fh;
  14 };
  15
  16 #define TOUCH_BUTTON_INITIALIZER(name, x, y, w, h) \
  17         {SNES_##name##_MASK, 0, 0, 0, 0, x, y, w, h}
  18
  19 #define kCornerButtonWidth      (0.375)
  20 #define kCornerButtonHeight     (0.0833333333334)
  21 #define kBigButtonWidth         (0.125)
  22 #define kBigButtonHeight        (0.2777777777778)
  23
  24 static TouchButton touchbuttons[] = {
  25         TOUCH_BUTTON_INITIALIZER(TL, 0.0, 0.0, kCornerButtonWidth, kCornerButtonHeight),
  26         TOUCH_BUTTON_INITIALIZER(TR, 0.625, 0.0, kCornerButtonWidth, kCornerButtonHeight),
  27         TOUCH_BUTTON_INITIALIZER(UP, kBigButtonWidth, kCornerButtonHeight, kBigButtonWidth, kBigButtonHeight),
  28         TOUCH_BUTTON_INITIALIZER(LEFT, 0.0, kCornerButtonHeight + kBigButtonHeight, kBigButtonWidth, kBigButtonHeight),
  29         TOUCH_BUTTON_INITIALIZER(RIGHT, 2.0 * kBigButtonWidth, kCornerButtonHeight + kBigButtonHeight, kBigButtonWidth, kBigButtonHeight),
  30         TOUCH_BUTTON_INITIALIZER(DOWN, kBigButtonWidth, 1.0 - (kCornerButtonHeight + kBigButtonHeight), kBigButtonWidth, kBigButtonHeight),
  31         TOUCH_BUTTON_INITIALIZER(SELECT, 0.0, 1.0 - kCornerButtonHeight, kCornerButtonWidth, kCornerButtonHeight),
  32         TOUCH_BUTTON_INITIALIZER(X, 1.0 - 2.0 * kBigButtonWidth, kCornerButtonHeight, kBigButtonWidth, kBigButtonHeight),
  33         TOUCH_BUTTON_INITIALIZER(Y, 1.0 - 3.0 * kBigButtonWidth, kCornerButtonHeight + kBigButtonHeight, kBigButtonWidth, kBigButtonHeight),
  34         TOUCH_BUTTON_INITIALIZER(A, 1.0 - kBigButtonWidth, kCornerButtonHeight + kBigButtonHeight, kBigButtonWidth, kBigButtonHeight),
  35         TOUCH_BUTTON_INITIALIZER(B, 1.0 - 2.0 * kBigButtonWidth, 1.0 - (kCornerButtonHeight + kBigButtonHeight), kBigButtonWidth, kBigButtonHeight),
  36         TOUCH_BUTTON_INITIALIZER(START, 1.0 - kCornerButtonWidth, 1.0 - kCornerButtonHeight, kCornerButtonWidth, kCornerButtonHeight),
  37 };
  38
  39 static TouchButton* current = 0;
  40
  41 static uint32 joypads[2];
  42 static struct {
  43         unsigned x;
  44         unsigned y;
  45         bool enabled, pressed;
  46 } mouse;
  47
  48 static TouchButton* getButtonFor(unsigned int x, unsigned int y) {
  49         unsigned int i;
  50
  51         for (i = 0; i < sizeof(touchbuttons)/sizeof(TouchButton); i++) {
  52                 if (x >= touchbuttons[i].x && x < touchbuttons[i].x2 &&
  53                         y >= touchbuttons[i].y && y < touchbuttons[i].y2) {
  54
  55                         return &touchbuttons[i];
  56                 }
  57         }
  58
  59         return 0;
  60 }
  61
  62 static inline void unpress(TouchButton* b) {
  63         joypads[0] &= ~b->mask;
  64 }
  65 static inline void press(TouchButton* b) {
  66         joypads[0] |= b->mask;
  67 }
  68
  69 static void processMouse(unsigned int x, unsigned int y, int pressed = 0)
  70 {
  71 #if CONF_EXIT_BUTTON
  72         /* no fullscreen escape button, we have to simulate one! */
  73         if (Config.fullscreen && x > (800 - 100) && y < 50 && pressed > 0) {
  74                 S9xDoAction(kActionQuit);
  75         }
  76 #endif
  77         if (Config.touchscreenInput) {
  78                 if (pressed < 0) {
  79                         // Button up.
  80                         if (current) {
  81                                 // Leaving button
  82                                 unpress(current);
  83                                 current = 0;
  84                         }
  85                 } else {
  86                         // Button down, or mouse motion.
  87                         TouchButton* b = getButtonFor(x, y);
  88                         if (current && b && current != b) {
  89                                 // Moving from button to button
  90                                 unpress(current);
  91                                 current = b;
  92                                 press(current);
  93                         } else if (current && !b) {
  94                                 // Leaving button
  95                                 unpress(current);
  96                                 current = 0;
  97                         } else if (!current && b) {
  98                                 // Entering button
  99                                 current = b;
 100                                 press(current);
 101                         }
 102                 }
 103         } else if (mouse.enabled) {
 104                 mouse.x = x;
 105                 mouse.y = y;
 106
 107                 if (mouse.x < GUI.RenderX) mouse.x = 0;
 108                 else {
 109                         mouse.x -= GUI.RenderX;
 110                         if (mouse.x > GUI.RenderW) mouse.x = GUI.RenderW;
 111                 }
 112
 113                 if (mouse.y < GUI.RenderY) mouse.y = 0;
 114                 else {
 115                         mouse.y -= GUI.RenderY;
 116                         if (mouse.y > GUI.RenderH) mouse.y = GUI.RenderH;
 117                 }
 118
 119                 // Take care of scaling
 120                 mouse.x /= GUI.ScaleX;
 121                 mouse.y /= GUI.ScaleY;
 122
 123                 if (pressed > 0)
 124                         mouse.pressed = true;
 125                 else if (pressed < 0)
 126                         mouse.pressed = false;
 127         }
 128 }
 129
 130 static void processEvent(const SDL_Event& event)
 131 {
 132         switch (event.type)
 133         {
 134         case SDL_KEYDOWN:
 135                 if (Config.action[event.key.keysym.scancode])
 136                         S9xDoAction(Config.action[event.key.keysym.scancode]);
 137                 joypads[0] |= Config.joypad1Mapping[event.key.keysym.scancode];
 138                 break;
 139         case SDL_KEYUP:
 140                 joypads[0] &= ~Config.joypad1Mapping[event.key.keysym.scancode];
 141                 break;
 142         case SDL_MOUSEBUTTONUP:
 143         case SDL_MOUSEBUTTONDOWN:
 144                 processMouse(event.button.x, event.button.y,
 145                                 (event.button.state == SDL_PRESSED) ? 1 : - 1);
 146                 break;
 147         case SDL_MOUSEMOTION:
 148                 processMouse(event.motion.x, event.motion.y);
 149                 break;
 150         case SDL_ACTIVEEVENT:
 151                 if (event.active.state & SDL_APPINPUTFOCUS) {
 152                         S9xVideoOutputFocus(event.active.gain);
 153                 }
 154                 break;
 155         case SDL_QUIT:
 156                 Config.quitting = true;
 157                 break;
 158         }
 159 }
 160
 161 uint32 S9xReadJoypad (int which)
 162 {
 163         if (which < 0 || which > 2) {
 164                 return 0;
 165         }
 166
 167         return joypads[which];
 168 }
 169
 170 bool8 S9xReadMousePosition(int which1, int& x, int& y, uint32& buttons)
 171 {
 172         if (which1 != 0) return FALSE;
 173
 174         x = mouse.x;
 175         y = mouse.y;
 176         buttons = mouse.pressed ? 1 : 0;
 177
 178         return TRUE;
 179 }
 180
 181 bool8 S9xReadSuperScopePosition(int& x, int& y, uint32& buttons)
 182 {
 183         x = mouse.x;
 184         y = mouse.y;
 185         buttons = mouse.pressed ? 8 : 0;
 186
 187         return TRUE;
 188 }
 189
 190 void S9xProcessEvents(bool8_32 block)
 191 {
 192         SDL_Event event;
 193
 194         if (block) {
 195                 SDL_WaitEvent(&event);
 196                 processEvent(event);
 197         } else {
 198                 while(SDL_PollEvent(&event)) {
 199                         processEvent(event);
 200                 }
 201         }
 202 }
 203
 204 void S9xInitInputDevices()
 205 {
 206         joypads[0] = 0;
 207         joypads[1] = 0;
 208         mouse.enabled = false;
 209         mouse.pressed = false;
 210
 211         switch (Settings.ControllerOption) {
 212                 case SNES_JOYPAD:
 213                         joypads[0] = 0x80000000UL;
 214                         printf("Input: 1 joypad, keyboard only\n");
 215                         break;
 216                 case SNES_MOUSE:
 217                         joypads[0] = 0x80000000UL;
 218                         mouse.enabled = true;
 219                         printf("Input: 1 joypad + mouse\n");
 220                         break;
 221                 case SNES_MOUSE_SWAPPED:
 222                         printf("Input: mouse\n");
 223                         mouse.enabled = true;
 224                         break;
 225                 case SNES_SUPERSCOPE:
 226                         joypads[0] = 0x80000000UL;
 227                         mouse.enabled = true;
 228                         printf("Input: 1 joypad + superscope\n");
 229                         break;
 230                 default:
 231                         printf("Input: unknown\n");
 232                         break;
 233         }
 234
 235         S9xInputScreenChanged();
 236 }
 237
 238 void S9xDeinitInputDevices()
 239 {
 240
 241 }
 242
 243 void S9xInputScreenChanged()
 244 {
 245         unsigned int i = 0;
 246         const unsigned int w = GUI.Width, h = GUI.Height;
 247         for (i = 0; i < sizeof(touchbuttons)/sizeof(TouchButton); i++) {
 248                 touchbuttons[i].x = (unsigned int)(touchbuttons[i].fx * w);
 249                 touchbuttons[i].y = (unsigned int)(touchbuttons[i].fy * h);
 250                 touchbuttons[i].x2 = (unsigned int)(touchbuttons[i].x + touchbuttons[i].fw * w);
 251                 touchbuttons[i].y2 = (unsigned int)(touchbuttons[i].y + touchbuttons[i].fh * h);
 252         }
 253 }
 254
 255 template <typename T>
 256 static void drawControls(T * buffer, const int pitch)
 257 {
 258         unsigned int i = 0;
 259         int x, y;
 260         const T black = static_cast<T>(0xFFFFFFFFU);
 261         T* temp;
 262
 263         for (i = 0; i < sizeof(touchbuttons)/sizeof(TouchButton); i++) {
 264                 temp = buffer + touchbuttons[i].y * pitch + touchbuttons[i].x;
 265                 for (x = touchbuttons[i].x; x < touchbuttons[i].x2; x++) {
 266                         *temp = black;
 267                         temp++;
 268                 }
 269                 temp = buffer + touchbuttons[i].y2 * pitch + touchbuttons[i].x;
 270                 for (x = touchbuttons[i].x; x < touchbuttons[i].x2; x++) {
 271                         *temp = black;
 272                         temp++;
 273                 }
 274                 temp = buffer + touchbuttons[i].y * pitch + touchbuttons[i].x;
 275                 for (y = touchbuttons[i].y; y < touchbuttons[i].y2; y++) {
 276                         *temp = black;
 277                         temp+=pitch;
 278                 }
 279                 temp = buffer + touchbuttons[i].y * pitch + touchbuttons[i].x2;
 280                 for (y = touchbuttons[i].y; y < touchbuttons[i].y2; y++) {
 281                         *temp = black;
 282                         temp+=pitch;
 283                 }
 284         }
 285 }
 286
 287 void S9xInputScreenDraw(int pixelSize, void * buffer, int pitch)
 288 {
 289         switch (pixelSize)
 290         {
 291                 case 1:
 292                         drawControls(reinterpret_cast<uint8*>(buffer), pitch);
 293                         break;
 294                 case 2:
 295                         drawControls(reinterpret_cast<uint16*>(buffer), pitch / 2);
 296                         break;
 297         }
 298 }
 299