2 // VIDEO.CPP: SDL/local hardware specific video routines
8 #include "sdlemu_opengl.h"
12 // External global variables
14 //shouldn't these exist here??? Prolly.
15 //And now, they do! :-)
16 SDL_Surface * surface, * mainSurface;
17 Uint32 mainSurfaceFlags;
19 SDL_Joystick * joystick;
22 // Create SDL/OpenGL surfaces
26 // Get proper info about the platform we're running on...
27 const SDL_VideoInfo * info = SDL_GetVideoInfo();
31 WriteLog("VJ: SDL is unable to get the video info: %s\n", SDL_GetError());
37 mainSurfaceFlags = SDL_HWSURFACE | SDL_HWPALETTE | SDL_DOUBLEBUF | SDL_OPENGL;
38 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
42 if (info->hw_available)
43 mainSurfaceFlags = SDL_HWSURFACE | SDL_HWPALETTE | SDL_DOUBLEBUF;
46 mainSurfaceFlags |= SDL_HWACCEL;
50 mainSurfaceFlags |= SDL_FULLSCREEN;
53 // mainSurface = SDL_SetVideoMode(VIRTUAL_SCREEN_WIDTH, VIRTUAL_SCREEN_HEIGHT_NTSC, 16, mainSurfaceFlags);
54 mainSurface = SDL_SetVideoMode(VIRTUAL_SCREEN_WIDTH,
55 (vjs.hardwareTypeNTSC ? VIRTUAL_SCREEN_HEIGHT_NTSC : VIRTUAL_SCREEN_HEIGHT_PAL),
56 16, mainSurfaceFlags);
58 // mainSurface = SDL_SetVideoMode(VIRTUAL_SCREEN_WIDTH * 2, VIRTUAL_SCREEN_HEIGHT_NTSC * 2, 16, mainSurfaceFlags);
59 mainSurface = SDL_SetVideoMode(VIRTUAL_SCREEN_WIDTH * 2,
60 (vjs.hardwareTypeNTSC ? VIRTUAL_SCREEN_HEIGHT_NTSC : VIRTUAL_SCREEN_HEIGHT_PAL) * 2,
61 16, mainSurfaceFlags);
63 if (mainSurface == NULL)
65 WriteLog("VJ: SDL is unable to set the video mode: %s\n", SDL_GetError());
69 SDL_WM_SetCaption("Virtual Jaguar", "Virtual Jaguar");
71 // Create the primary SDL display (16 BPP, 5/5/5 RGB format)
72 surface = SDL_CreateRGBSurface(SDL_SWSURFACE, VIRTUAL_SCREEN_WIDTH,
73 (vjs.hardwareTypeNTSC ? VIRTUAL_SCREEN_HEIGHT_NTSC : VIRTUAL_SCREEN_HEIGHT_PAL),
74 16, 0x7C00, 0x03E0, 0x001F, 0);
78 WriteLog("VJ: Could not create primary SDL surface: %s\n", SDL_GetError());
83 //Should make another setting here, for either linear or nearest (instead of just picking one)
85 sdlemu_init_opengl(surface, 1/*method*/, 2/*size*/, vjs.glFilter/*texture type (linear, nearest)*/);
87 // Initialize Joystick support under SDL
90 if (SDL_NumJoysticks() <= 0)
92 vjs.useJoystick = false;
93 printf("VJ: No joystick(s) or joypad(s) detected on your system. Using keyboard...\n");
97 if ((joystick = SDL_JoystickOpen(vjs.joyport)) == 0)
99 vjs.useJoystick = false;
100 printf("VJ: Unable to open a Joystick on port: %d\n", (int)vjs.joyport);
103 printf("VJ: Using: %s\n", SDL_JoystickName(vjs.joyport));
107 // Set up the backbuffer
108 //To be safe, this should be 1280 * 625 * 2...
109 // backbuffer = (int16 *)malloc(845 * 525 * sizeof(int16));
110 backbuffer = (int16 *)malloc(1280 * 625 * sizeof(int16));
111 // memset(backbuffer, 0x44, VIRTUAL_SCREEN_WIDTH * VIRTUAL_SCREEN_HEIGHT_NTSC * sizeof(int16));
112 memset(backbuffer, 0x44, VIRTUAL_SCREEN_WIDTH *
113 (vjs.hardwareTypeNTSC ? VIRTUAL_SCREEN_HEIGHT_NTSC : VIRTUAL_SCREEN_HEIGHT_PAL)
120 // Free various SDL components
125 sdlemu_close_opengl();
127 SDL_JoystickClose(joystick);
128 SDL_FreeSurface(surface);
133 // Render the backbuffer to the primary screen surface
135 void RenderBackbuffer(void)
137 if (SDL_MUSTLOCK(surface))
138 while (SDL_LockSurface(surface) < 0)
141 memcpy(surface->pixels, backbuffer, tom_getVideoModeWidth() * tom_getVideoModeHeight() * 2);
143 if (SDL_MUSTLOCK(surface))
144 SDL_UnlockSurface(surface);
147 sdlemu_draw_texture(mainSurface, surface, 1/*1=GL_QUADS*/);
150 SDL_Rect rect = { 0, 0, surface->w, surface->h };
151 SDL_BlitSurface(surface, &rect, mainSurface, &rect);
152 SDL_Flip(mainSurface);
157 // Resize the main SDL screen & backbuffer
159 void ResizeScreen(uint32 width, uint32 height)
161 char window_title[256];
163 SDL_FreeSurface(surface);
164 surface = SDL_CreateRGBSurface(SDL_SWSURFACE, width, height, 16,
165 0x7C00, 0x03E0, 0x001F, 0);
169 WriteLog("Video: Could not create primary SDL surface: %s", SDL_GetError());
170 //This is just crappy. We shouldn't exit this way--it leaves all kinds of memory leaks
171 //as well as screwing up SDL... !!! FIX !!!
177 //Need to really resize the window height--no pixel height shenanigans!
178 //Err, we should only do this *if* we changed from PAL to NTSC or vice versa... !!! FIX !!!
179 mainSurface = SDL_SetVideoMode(VIRTUAL_SCREEN_WIDTH * 2, height * 2, 16, mainSurfaceFlags);
180 // This seems to work well for resizing (i.e., changes in the pixel width)...
181 sdlemu_resize_texture(surface, mainSurface, vjs.glFilter);
185 mainSurface = SDL_SetVideoMode(width, height, 16, mainSurfaceFlags);
187 if (mainSurface == NULL)
189 WriteLog("Video: SDL is unable to set the video mode: %s\n", SDL_GetError());
194 sprintf(window_title, "Virtual Jaguar (%i x %i)", (int)width, (int)height);
195 SDL_WM_SetCaption(window_title, window_title);
199 // Return the screen's pitch
201 uint32 GetSDLScreenPitch(void)
203 return surface->pitch;
207 // Fullscreen <-> window switching
209 void ToggleFullscreen(void)
211 //NOTE: This does *NOT* work with OpenGL rendering! !!! FIX !!!
213 return; // Until we can fix it...
215 vjs.fullscreen = !vjs.fullscreen;
216 mainSurfaceFlags &= ~SDL_FULLSCREEN;
219 mainSurfaceFlags |= SDL_FULLSCREEN;
221 mainSurface = SDL_SetVideoMode(tom_width, tom_height, 16, mainSurfaceFlags);
223 if (mainSurface == NULL)
225 WriteLog("Video: SDL is unable to set the video mode: %s\n", SDL_GetError());
229 SDL_WM_SetCaption("Virtual Jaguar", "Virtual Jaguar");