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-rw-r--r--src/video/sdl_v.cpp513
1 files changed, 513 insertions, 0 deletions
diff --git a/src/video/sdl_v.cpp b/src/video/sdl_v.cpp
new file mode 100644
index 000000000..3e776d29f
--- /dev/null
+++ b/src/video/sdl_v.cpp
@@ -0,0 +1,513 @@
+/* $Id$ */
+
+#include "../stdafx.h"
+
+#ifdef WITH_SDL
+
+#include "../openttd.h"
+#include "../debug.h"
+#include "../functions.h"
+#include "../gfx.h"
+#include "../macros.h"
+#include "../sdl.h"
+#include "../window.h"
+#include "../network/network.h"
+#include "../variables.h"
+#include "sdl_v.h"
+#include <SDL.h>
+
+static SDL_Surface *_sdl_screen;
+static bool _all_modes;
+
+#define MAX_DIRTY_RECTS 100
+static SDL_Rect _dirty_rects[MAX_DIRTY_RECTS];
+static int _num_dirty_rects;
+
+static void SdlVideoMakeDirty(int left, int top, int width, int height)
+{
+ if (_num_dirty_rects < MAX_DIRTY_RECTS) {
+ _dirty_rects[_num_dirty_rects].x = left;
+ _dirty_rects[_num_dirty_rects].y = top;
+ _dirty_rects[_num_dirty_rects].w = width;
+ _dirty_rects[_num_dirty_rects].h = height;
+ }
+ _num_dirty_rects++;
+}
+
+static void UpdatePalette(uint start, uint count)
+{
+ SDL_Color pal[256];
+ uint i;
+
+ for (i = 0; i != count; i++) {
+ pal[i].r = _cur_palette[start + i].r;
+ pal[i].g = _cur_palette[start + i].g;
+ pal[i].b = _cur_palette[start + i].b;
+ pal[i].unused = 0;
+ }
+
+ SDL_CALL SDL_SetColors(_sdl_screen, pal, start, count);
+}
+
+static void InitPalette(void)
+{
+ UpdatePalette(0, 256);
+}
+
+static void CheckPaletteAnim(void)
+{
+ if (_pal_last_dirty != -1) {
+ UpdatePalette(_pal_first_dirty, _pal_last_dirty - _pal_first_dirty + 1);
+ _pal_last_dirty = -1;
+ }
+}
+
+static void DrawSurfaceToScreen(void)
+{
+ int n = _num_dirty_rects;
+ if (n != 0) {
+ _num_dirty_rects = 0;
+ if (n > MAX_DIRTY_RECTS)
+ SDL_CALL SDL_UpdateRect(_sdl_screen, 0, 0, 0, 0);
+ else
+ SDL_CALL SDL_UpdateRects(_sdl_screen, n, _dirty_rects);
+ }
+}
+
+static const uint16 default_resolutions[][2] = {
+ { 640, 480},
+ { 800, 600},
+ {1024, 768},
+ {1152, 864},
+ {1280, 800},
+ {1280, 960},
+ {1280, 1024},
+ {1400, 1050},
+ {1600, 1200},
+ {1680, 1050},
+ {1920, 1200}
+};
+
+static void GetVideoModes(void)
+{
+ int i;
+ SDL_Rect **modes;
+
+ modes = SDL_CALL SDL_ListModes(NULL, SDL_SWSURFACE + (_fullscreen ? SDL_FULLSCREEN : 0));
+
+ if (modes == NULL)
+ error("sdl: no modes available");
+
+ _all_modes = (modes == (void*)-1);
+
+ if (_all_modes) {
+ // all modes available, put some default ones here
+ memcpy(_resolutions, default_resolutions, sizeof(default_resolutions));
+ _num_resolutions = lengthof(default_resolutions);
+ } else {
+ int n = 0;
+ for (i = 0; modes[i]; i++) {
+ int w = modes[i]->w;
+ int h = modes[i]->h;
+ if (IS_INT_INSIDE(w, 640, MAX_SCREEN_WIDTH + 1) &&
+ IS_INT_INSIDE(h, 480, MAX_SCREEN_HEIGHT + 1)) {
+ int j;
+ for (j = 0; j < n; j++) {
+ if (_resolutions[j][0] == w && _resolutions[j][1] == h) break;
+ }
+
+ if (j == n) {
+ _resolutions[j][0] = w;
+ _resolutions[j][1] = h;
+ if (++n == lengthof(_resolutions)) break;
+ }
+ }
+ }
+ _num_resolutions = n;
+ SortResolutions(_num_resolutions);
+ }
+}
+
+static void GetAvailableVideoMode(int *w, int *h)
+{
+ int i;
+ int best;
+ uint delta;
+
+ // all modes available?
+ if (_all_modes) return;
+
+ // is the wanted mode among the available modes?
+ for (i = 0; i != _num_resolutions; i++) {
+ if (*w == _resolutions[i][0] && *h == _resolutions[i][1]) return;
+ }
+
+ // use the closest possible resolution
+ best = 0;
+ delta = abs((_resolutions[0][0] - *w) * (_resolutions[0][1] - *h));
+ for (i = 1; i != _num_resolutions; ++i) {
+ uint newdelta = abs((_resolutions[i][0] - *w) * (_resolutions[i][1] - *h));
+ if (newdelta < delta) {
+ best = i;
+ delta = newdelta;
+ }
+ }
+ *w = _resolutions[best][0];
+ *h = _resolutions[best][1];
+}
+
+#ifndef ICON_DIR
+#define ICON_DIR "media"
+#endif
+
+#ifdef WIN32
+/* Let's redefine the LoadBMP macro with because we are dynamically
+ * loading SDL and need to 'SDL_CALL' all functions */
+#undef SDL_LoadBMP
+#define SDL_LoadBMP(file) SDL_LoadBMP_RW(SDL_CALL SDL_RWFromFile(file, "rb"), 1)
+#endif
+
+static bool CreateMainSurface(int w, int h)
+{
+ extern const char _openttd_revision[];
+ SDL_Surface *newscreen, *icon;
+ char caption[50];
+
+ GetAvailableVideoMode(&w, &h);
+
+ DEBUG(driver, 1, "SDL: using mode %dx%d", w, h);
+
+ /* Give the application an icon */
+ icon = SDL_CALL SDL_LoadBMP(ICON_DIR PATHSEP "openttd.32.bmp");
+ if (icon != NULL) {
+ /* Get the colourkey, which will be magenta */
+ uint32 rgbmap = SDL_CALL SDL_MapRGB(icon->format, 255, 0, 255);
+
+ SDL_CALL SDL_SetColorKey(icon, SDL_SRCCOLORKEY, rgbmap);
+ SDL_CALL SDL_WM_SetIcon(icon, NULL);
+ SDL_CALL SDL_FreeSurface(icon);
+ }
+
+ // DO NOT CHANGE TO HWSURFACE, IT DOES NOT WORK
+ newscreen = SDL_CALL SDL_SetVideoMode(w, h, 8, SDL_SWSURFACE | SDL_HWPALETTE | (_fullscreen ? SDL_FULLSCREEN : SDL_RESIZABLE));
+ if (newscreen == NULL)
+ return false;
+
+ _screen.width = newscreen->w;
+ _screen.height = newscreen->h;
+ _screen.pitch = newscreen->pitch;
+
+ _sdl_screen = newscreen;
+ InitPalette();
+
+ snprintf(caption, sizeof(caption), "OpenTTD %s", _openttd_revision);
+ SDL_CALL SDL_WM_SetCaption(caption, caption);
+ SDL_CALL SDL_ShowCursor(0);
+
+ GameSizeChanged();
+
+ return true;
+}
+
+typedef struct VkMapping {
+ uint16 vk_from;
+ byte vk_count;
+ byte map_to;
+} VkMapping;
+
+#define AS(x, z) {x, 0, z}
+#define AM(x, y, z, w) {x, y - x, z}
+
+static const VkMapping _vk_mapping[] = {
+ // Pageup stuff + up/down
+ AM(SDLK_PAGEUP, SDLK_PAGEDOWN, WKC_PAGEUP, WKC_PAGEDOWN),
+ AS(SDLK_UP, WKC_UP),
+ AS(SDLK_DOWN, WKC_DOWN),
+ AS(SDLK_LEFT, WKC_LEFT),
+ AS(SDLK_RIGHT, WKC_RIGHT),
+
+ AS(SDLK_HOME, WKC_HOME),
+ AS(SDLK_END, WKC_END),
+
+ AS(SDLK_INSERT, WKC_INSERT),
+ AS(SDLK_DELETE, WKC_DELETE),
+
+ // Map letters & digits
+ AM(SDLK_a, SDLK_z, 'A', 'Z'),
+ AM(SDLK_0, SDLK_9, '0', '9'),
+
+ AS(SDLK_ESCAPE, WKC_ESC),
+ AS(SDLK_PAUSE, WKC_PAUSE),
+ AS(SDLK_BACKSPACE, WKC_BACKSPACE),
+
+ AS(SDLK_SPACE, WKC_SPACE),
+ AS(SDLK_RETURN, WKC_RETURN),
+ AS(SDLK_TAB, WKC_TAB),
+
+ // Function keys
+ AM(SDLK_F1, SDLK_F12, WKC_F1, WKC_F12),
+
+ // Numeric part.
+ // What is the virtual keycode for numeric enter??
+ AM(SDLK_KP0, SDLK_KP9, WKC_NUM_0, WKC_NUM_9),
+ AS(SDLK_KP_DIVIDE, WKC_NUM_DIV),
+ AS(SDLK_KP_MULTIPLY, WKC_NUM_MUL),
+ AS(SDLK_KP_MINUS, WKC_NUM_MINUS),
+ AS(SDLK_KP_PLUS, WKC_NUM_PLUS),
+ AS(SDLK_KP_ENTER, WKC_NUM_ENTER),
+ AS(SDLK_KP_PERIOD, WKC_NUM_DECIMAL)
+};
+
+static uint32 ConvertSdlKeyIntoMy(SDL_keysym *sym)
+{
+ const VkMapping *map;
+ uint key = 0;
+
+ for (map = _vk_mapping; map != endof(_vk_mapping); ++map) {
+ if ((uint)(sym->sym - map->vk_from) <= map->vk_count) {
+ key = sym->sym - map->vk_from + map->map_to;
+ break;
+ }
+ }
+
+ // check scancode for BACKQUOTE key, because we want the key left of "1", not anything else (on non-US keyboards)
+#if defined(WIN32) || defined(__OS2__)
+ if (sym->scancode == 41) key = WKC_BACKQUOTE;
+#elif defined(__APPLE__)
+ if (sym->scancode == 10) key = WKC_BACKQUOTE;
+#elif defined(__MORPHOS__)
+ if (sym->scancode == 0) key = WKC_BACKQUOTE; // yes, that key is code '0' under MorphOS :)
+#elif defined(__BEOS__)
+ if (sym->scancode == 17) key = WKC_BACKQUOTE;
+#elif defined(__SVR4) && defined(__sun)
+ if (sym->scancode == 60) key = WKC_BACKQUOTE;
+ if (sym->scancode == 49) key = WKC_BACKSPACE;
+#elif defined(__sgi__)
+ if (sym->scancode == 22) key = WKC_BACKQUOTE;
+#else
+ if (sym->scancode == 49) key = WKC_BACKQUOTE;
+#endif
+
+ // META are the command keys on mac
+ if (sym->mod & KMOD_META) key |= WKC_META;
+ if (sym->mod & KMOD_SHIFT) key |= WKC_SHIFT;
+ if (sym->mod & KMOD_CTRL) key |= WKC_CTRL;
+ if (sym->mod & KMOD_ALT) key |= WKC_ALT;
+ // these two lines really help porting hotkey combos. Uncomment to use -- Bjarni
+#if 0
+ DEBUG(driver, 0, "Scancode character pressed %u", sym->scancode);
+ DEBUG(driver, 0, "Unicode character pressed %u", sym->unicode);
+#endif
+ return (key << 16) + sym->unicode;
+}
+
+static int PollEvent(void)
+{
+ SDL_Event ev;
+
+ if (!SDL_CALL SDL_PollEvent(&ev)) return -2;
+
+ switch (ev.type) {
+ case SDL_MOUSEMOTION:
+ if (_cursor.fix_at) {
+ int dx = ev.motion.x - _cursor.pos.x;
+ int dy = ev.motion.y - _cursor.pos.y;
+ if (dx != 0 || dy != 0) {
+ _cursor.delta.x += dx;
+ _cursor.delta.y += dy;
+ SDL_CALL SDL_WarpMouse(_cursor.pos.x, _cursor.pos.y);
+ }
+ } else {
+ _cursor.delta.x = ev.motion.x - _cursor.pos.x;
+ _cursor.delta.y = ev.motion.y - _cursor.pos.y;
+ _cursor.pos.x = ev.motion.x;
+ _cursor.pos.y = ev.motion.y;
+ _cursor.dirty = true;
+ }
+ HandleMouseEvents();
+ break;
+
+ case SDL_MOUSEBUTTONDOWN:
+ if (_rightclick_emulate && SDL_CALL SDL_GetModState() & KMOD_CTRL) {
+ ev.button.button = SDL_BUTTON_RIGHT;
+ }
+
+ switch (ev.button.button) {
+ case SDL_BUTTON_LEFT:
+ _left_button_down = true;
+ break;
+
+ case SDL_BUTTON_RIGHT:
+ _right_button_down = true;
+ _right_button_clicked = true;
+ break;
+
+ case SDL_BUTTON_WHEELUP: _cursor.wheel--; break;
+ case SDL_BUTTON_WHEELDOWN: _cursor.wheel++; break;
+
+ default: break;
+ }
+ HandleMouseEvents();
+ break;
+
+ case SDL_MOUSEBUTTONUP:
+ if (_rightclick_emulate) {
+ _right_button_down = false;
+ _left_button_down = false;
+ _left_button_clicked = false;
+ } else if (ev.button.button == SDL_BUTTON_LEFT) {
+ _left_button_down = false;
+ _left_button_clicked = false;
+ } else if (ev.button.button == SDL_BUTTON_RIGHT) {
+ _right_button_down = false;
+ }
+ HandleMouseEvents();
+ break;
+
+ case SDL_ACTIVEEVENT:
+ if (!(ev.active.state & SDL_APPMOUSEFOCUS)) break;
+
+ if (ev.active.gain) { // mouse entered the window, enable cursor
+ _cursor.in_window = true;
+ } else {
+ UndrawMouseCursor(); // mouse left the window, undraw cursor
+ _cursor.in_window = false;
+ }
+ break;
+
+ case SDL_QUIT: HandleExitGameRequest(); break;
+
+ case SDL_KEYDOWN: /* Toggle full-screen on ALT + ENTER/F */
+ if ((ev.key.keysym.mod & (KMOD_ALT | KMOD_META)) &&
+ (ev.key.keysym.sym == SDLK_RETURN || ev.key.keysym.sym == SDLK_f)) {
+ ToggleFullScreen(!_fullscreen);
+ } else {
+ HandleKeypress(ConvertSdlKeyIntoMy(&ev.key.keysym));
+ }
+ break;
+
+ case SDL_VIDEORESIZE: {
+ int w = clamp(ev.resize.w, 64, MAX_SCREEN_WIDTH);
+ int h = clamp(ev.resize.h, 64, MAX_SCREEN_HEIGHT);
+ ChangeResInGame(w, h);
+ break;
+ }
+ }
+ return -1;
+}
+
+static const char *SdlVideoStart(const char * const *parm)
+{
+ char buf[30];
+
+ const char *s = SdlOpen(SDL_INIT_VIDEO);
+ if (s != NULL) return s;
+
+ SDL_CALL SDL_VideoDriverName(buf, 30);
+ DEBUG(driver, 1, "SDL: using driver '%s'", buf);
+
+ GetVideoModes();
+ CreateMainSurface(_cur_resolution[0], _cur_resolution[1]);
+ MarkWholeScreenDirty();
+
+ SDL_CALL SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
+ SDL_CALL SDL_EnableUNICODE(1);
+ return NULL;
+}
+
+static void SdlVideoStop(void)
+{
+ SdlClose(SDL_INIT_VIDEO);
+}
+
+static void SdlVideoMainLoop(void)
+{
+ uint32 cur_ticks = SDL_CALL SDL_GetTicks();
+ uint32 next_tick = cur_ticks + 30;
+ uint32 pal_tick = 0;
+ uint32 mod;
+ int numkeys;
+ Uint8 *keys;
+
+ for (;;) {
+ uint32 prev_cur_ticks = cur_ticks; // to check for wrapping
+ InteractiveRandom(); // randomness
+
+ while (PollEvent() == -1) {}
+ if (_exit_game) return;
+
+ mod = SDL_CALL SDL_GetModState();
+ keys = SDL_CALL SDL_GetKeyState(&numkeys);
+#if defined(_DEBUG)
+ if (_shift_pressed)
+#else
+ /* Speedup when pressing tab, except when using ALT+TAB
+ * to switch to another application */
+ if (keys[SDLK_TAB] && (mod & KMOD_ALT) == 0)
+#endif
+ {
+ if (!_networking && _game_mode != GM_MENU) _fast_forward |= 2;
+ } else if (_fast_forward & 2) {
+ _fast_forward = 0;
+ }
+
+ cur_ticks = SDL_CALL SDL_GetTicks();
+ if (cur_ticks >= next_tick || (_fast_forward && !_pause) || cur_ticks < prev_cur_ticks) {
+ next_tick = cur_ticks + 30;
+
+ _ctrl_pressed = !!(mod & KMOD_CTRL);
+ _shift_pressed = !!(mod & KMOD_SHIFT);
+#ifdef _DEBUG
+ _dbg_screen_rect = !!(mod & KMOD_CAPS);
+#endif
+
+ // determine which directional keys are down
+ _dirkeys =
+ (keys[SDLK_LEFT] ? 1 : 0) |
+ (keys[SDLK_UP] ? 2 : 0) |
+ (keys[SDLK_RIGHT] ? 4 : 0) |
+ (keys[SDLK_DOWN] ? 8 : 0);
+ GameLoop();
+
+ _screen.dst_ptr = _sdl_screen->pixels;
+ UpdateWindows();
+ if (++pal_tick > 4) {
+ CheckPaletteAnim();
+ pal_tick = 1;
+ }
+ DrawSurfaceToScreen();
+ } else {
+ SDL_CALL SDL_Delay(1);
+ _screen.dst_ptr = _sdl_screen->pixels;
+ DrawTextMessage();
+ DrawMouseCursor();
+ DrawSurfaceToScreen();
+ }
+ }
+}
+
+static bool SdlVideoChangeRes(int w, int h)
+{
+ return CreateMainSurface(w, h);
+}
+
+static void SdlVideoFullScreen(bool full_screen)
+{
+ _fullscreen = full_screen;
+ GetVideoModes(); // get the list of available video modes
+ if (_num_resolutions == 0 || !_video_driver->change_resolution(_cur_resolution[0], _cur_resolution[1])) {
+ // switching resolution failed, put back full_screen to original status
+ _fullscreen ^= true;
+ }
+}
+
+const HalVideoDriver _sdl_video_driver = {
+ SdlVideoStart,
+ SdlVideoStop,
+ SdlVideoMakeDirty,
+ SdlVideoMainLoop,
+ SdlVideoChangeRes,
+ SdlVideoFullScreen,
+};
+
+#endif
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