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);
55 mainSurface = SDL_SetVideoMode(VIRTUAL_SCREEN_WIDTH * 2, VIRTUAL_SCREEN_HEIGHT_NTSC * 2, 16, mainSurfaceFlags);
57 if (mainSurface == NULL)
59 WriteLog("VJ: SDL is unable to set the video mode: %s\n", SDL_GetError());
63 SDL_WM_SetCaption("Virtual Jaguar", "Virtual Jaguar");
65 // Create the primary SDL display (16 BPP, 5/5/5 RGB format)
66 surface = SDL_CreateRGBSurface(SDL_SWSURFACE, VIRTUAL_SCREEN_WIDTH, VIRTUAL_SCREEN_HEIGHT_NTSC,
67 16, 0x7C00, 0x03E0, 0x001F, 0);
71 WriteLog("VJ: Could not create primary SDL surface: %s\n", SDL_GetError());
76 //Should make another setting here, for either linear or nearest (instead of just picking one)
78 sdlemu_init_opengl(surface, 1/*method*/, 2/*size*/, vjs.glFilter/*texture type (linear, nearest)*/);
80 // Initialize Joystick support under SDL
83 if (SDL_NumJoysticks() <= 0)
85 vjs.useJoystick = false;
86 printf("VJ: No joystick(s) or joypad(s) detected on your system. Using keyboard...\n");
90 if ((joystick = SDL_JoystickOpen(vjs.joyport)) == 0)
92 vjs.useJoystick = false;
93 printf("VJ: Unable to open a Joystick on port: %d\n", (int)vjs.joyport);
96 printf("VJ: Using: %s\n", SDL_JoystickName(vjs.joyport));
100 // Set up the backbuffer
101 //To be safe, this should be 1280 * 625 * 2...
102 // backbuffer = (int16 *)malloc(845 * 525 * sizeof(int16));
103 backbuffer = (int16 *)malloc(1280 * 625 * sizeof(int16));
104 memset(backbuffer, 0x44, VIRTUAL_SCREEN_WIDTH * VIRTUAL_SCREEN_HEIGHT_NTSC * sizeof(int16));
110 // Free various SDL components
115 sdlemu_close_opengl();
117 SDL_JoystickClose(joystick);
118 SDL_FreeSurface(surface);
123 // Render the backbuffer to the primary screen surface
125 void RenderBackbuffer(void)
127 if (SDL_MUSTLOCK(surface))
128 while (SDL_LockSurface(surface) < 0)
131 memcpy(surface->pixels, backbuffer, tom_getVideoModeWidth() * tom_getVideoModeHeight() * 2);
133 if (SDL_MUSTLOCK(surface))
134 SDL_UnlockSurface(surface);
137 sdlemu_draw_texture(mainSurface, surface, 1/*1=GL_QUADS*/);
140 SDL_Rect rect = { 0, 0, surface->w, surface->h };
141 SDL_BlitSurface(surface, &rect, mainSurface, &rect);
142 SDL_Flip(mainSurface);
147 // Resize the main SDL screen & backbuffer
149 void ResizeScreen(uint32 width, uint32 height)
151 char window_title[256];
153 SDL_FreeSurface(surface);
154 surface = SDL_CreateRGBSurface(SDL_SWSURFACE, width, height, 16,
155 0x7C00, 0x03E0, 0x001F, 0);
159 WriteLog("Video: Could not create primary SDL surface: %s", SDL_GetError());
164 // This seems to work well for resizing (i.e., changes in the pixel width)...
165 sdlemu_resize_texture(surface, mainSurface, vjs.glFilter);
168 mainSurface = SDL_SetVideoMode(width, height, 16, mainSurfaceFlags);
170 if (mainSurface == NULL)
172 WriteLog("Video: SDL is unable to set the video mode: %s\n", SDL_GetError());
177 sprintf(window_title, "Virtual Jaguar (%i x %i)", (int)width, (int)height);
178 SDL_WM_SetCaption(window_title, window_title);
180 // This seems to work well for resizing (i.e., changes in the pixel width)...
181 // if (vjs.useOpenGL)
182 // sdlemu_resize_texture(surface, mainSurface);
186 // Return the screen's pitch
188 uint32 GetSDLScreenPitch(void)
190 return surface->pitch;
194 // Fullscreen <-> window switching
196 //NOTE: This does *NOT* work with OpenGL rendering! !!! FIX !!!
197 void ToggleFullscreen(void)
199 vjs.fullscreen = !vjs.fullscreen;
200 mainSurfaceFlags &= ~SDL_FULLSCREEN;
203 mainSurfaceFlags |= SDL_FULLSCREEN;
205 mainSurface = SDL_SetVideoMode(tom_width, tom_height, 16, mainSurfaceFlags);
207 if (mainSurface == NULL)
209 WriteLog("Video: SDL is unable to set the video mode: %s\n", SDL_GetError());
213 SDL_WM_SetCaption("Virtual Jaguar", "Virtual Jaguar");