// by James L. Hammons
//
-#include "types.h"
-#include "tom.h"
-#include "sdlemu_opengl.h" // For testing only... ;-)
#include "video.h"
+#include "gui.h" // For "finished"
+#include "log.h"
+#include "tom.h"
+#include "sdlemu_opengl.h"
+#include "settings.h"
+
// External global variables
-extern SDL_Surface * surface, * mainSurface;
-extern Uint32 mainSurfaceFlags;
-extern int16 * backbuffer;
-extern bool useOpenGL; // Testing, testing... :-)
-extern bool fullscreen;
+//shouldn't these exist here??? Prolly.
+//And now, they do! :-)
+SDL_Surface * surface, * mainSurface;
+SDL_Joystick * joystick;
+Uint32 mainSurfaceFlags;
+//int16 * backbuffer;
+uint32 * backbuffer;
+
+// One of the reasons why OpenGL is slower then normal SDL rendering, is because
+// the data is being pumped into the buffer every frame with a overflow as result.
+// So, we going tot render every 1 frame instead of every 0 frame.
+
+// [Shamus] This isn't the case. OpenGL is slower because 60 frames a second is a
+// lot of data to pump through the system. In any case, frameskip is probably
+// a good idea for now, since most systems are probably too slow to run at
+// 60 FPS. But doing so will have some nasty side effects in some games.
+// You have been warned!
+
+int frame_ticker = 0;
+
+//
+// Create SDL/OpenGL surfaces
+//
+bool InitVideo(void)
+{
+ // Get proper info about the platform we're running on...
+ const SDL_VideoInfo * info = SDL_GetVideoInfo();
+
+ if (!info)
+ {
+ WriteLog("VJ: SDL is unable to get the video info: %s\n", SDL_GetError());
+ return false;
+ }
+
+ if (vjs.useOpenGL)
+ {
+ // Initializing SDL attributes with OpenGL
+ SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 0);
+ SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
+ mainSurfaceFlags = SDL_OPENGL;
+
+ }
+ else
+ {
+ if (info->hw_available)
+ mainSurfaceFlags = SDL_HWSURFACE | SDL_HWPALETTE | SDL_DOUBLEBUF;
+
+ if (info->blit_hw)
+ mainSurfaceFlags |= SDL_HWACCEL;
+ }
+
+ if (vjs.fullscreen)
+ mainSurfaceFlags |= SDL_FULLSCREEN;
+
+/* if (!vjs.useOpenGL)
+// mainSurface = SDL_SetVideoMode(VIRTUAL_SCREEN_WIDTH, VIRTUAL_SCREEN_HEIGHT_NTSC, 16, mainSurfaceFlags);
+ mainSurface = SDL_SetVideoMode(VIRTUAL_SCREEN_WIDTH,
+ (vjs.hardwareTypeNTSC ? VIRTUAL_SCREEN_HEIGHT_NTSC : VIRTUAL_SCREEN_HEIGHT_PAL),
+ 16, mainSurfaceFlags);
+ else
+ // When OpenGL is used, we're going to use a standard resolution of 640x480.
+ // This way we have good scaling functionality and when the screen is resized
+ // because of the NTSC <-> PAL resize, we only have to re-create the texture
+ // instead of initializing the entire OpenGL texture en screens.
+ mainSurface = SDL_SetVideoMode(640, 480, 16, mainSurfaceFlags);//*/
+//24BPP
+ if (!vjs.useOpenGL)
+// mainSurface = SDL_SetVideoMode(VIRTUAL_SCREEN_WIDTH, VIRTUAL_SCREEN_HEIGHT_NTSC, 16, mainSurfaceFlags);
+ mainSurface = SDL_SetVideoMode(VIRTUAL_SCREEN_WIDTH,
+ (vjs.hardwareTypeNTSC ? VIRTUAL_SCREEN_HEIGHT_NTSC : VIRTUAL_SCREEN_HEIGHT_PAL),
+ 32, mainSurfaceFlags);
+ else
+ // When OpenGL is used, we're going to use a standard resolution of 640x480.
+ // This way we have good scaling functionality and when the screen is resized
+ // because of the NTSC <-> PAL resize, we only have to re-create the texture
+ // instead of initializing the entire OpenGL texture en screens.
+ mainSurface = SDL_SetVideoMode(640, 480, 32, mainSurfaceFlags);//*/
+
+ if (mainSurface == NULL)
+ {
+ WriteLog("VJ: SDL is unable to set the video mode: %s\n", SDL_GetError());
+ return false;
+ }
+
+ SDL_WM_SetCaption("Virtual Jaguar", "Virtual Jaguar");
+
+ // Create the primary SDL display (16 BPP, 5/5/5 RGB format)
+/* surface = SDL_CreateRGBSurface(SDL_SWSURFACE, VIRTUAL_SCREEN_WIDTH,
+ (vjs.hardwareTypeNTSC ? VIRTUAL_SCREEN_HEIGHT_NTSC : VIRTUAL_SCREEN_HEIGHT_PAL),
+ 16, 0x7C00, 0x03E0, 0x001F, 0);//*/
+
+ uint32 vsWidth = (vjs.renderType == RT_TV ? 1280 : VIRTUAL_SCREEN_WIDTH),
+ vsHeight = (vjs.hardwareTypeNTSC ? VIRTUAL_SCREEN_HEIGHT_NTSC : VIRTUAL_SCREEN_HEIGHT_PAL);
+
+// if (vjs.renderType == RT_TV)
+// vsWidth = 1280;
+//24BPP
+// surface = SDL_CreateRGBSurface(SDL_SWSURFACE, VIRTUAL_SCREEN_WIDTH,
+ surface = SDL_CreateRGBSurface(SDL_SWSURFACE, vsWidth, vsHeight, 32,
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+ 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF);
+#else
+ 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000);
+#endif//*/
+
+ if (surface == NULL)
+ {
+ WriteLog("VJ: Could not create primary SDL surface: %s\n", SDL_GetError());
+ return false;
+ }
+
+ if (vjs.useOpenGL)
+ // Let us setup OpenGL and our rendering texture. We give the src (surface) and the
+ // dst (mainSurface) display as well as the automatic bpp selection as options so that
+ // our texture is automatically created :)
+ sdlemu_init_opengl(surface, mainSurface, 1 /*method*/,
+ vjs.glFilter /*texture type (linear, nearest)*/,
+ 0 /* Automatic bpp selection based upon src */);
+
+ // Initialize Joystick support under SDL
+
+ if (vjs.useJoystick)
+ {
+ if (SDL_NumJoysticks() <= 0)
+ {
+ vjs.useJoystick = false;
+ printf("VJ: No joystick(s) or joypad(s) detected on your system. Using keyboard...\n");
+ }
+ else
+ {
+ if ((joystick = SDL_JoystickOpen(vjs.joyport)) == 0)
+ {
+ vjs.useJoystick = false;
+ printf("VJ: Unable to open a Joystick on port: %d\n", (int)vjs.joyport);
+ }
+ else
+ printf("VJ: Using: %s\n", SDL_JoystickName(vjs.joyport));
+ }
+ }
+
+ // Set up the backbuffer
+ // To be safe, this should be 1280 * 625 * 2...
+ backbuffer = (uint32 *)malloc(1280 * 625 * sizeof(uint32));
+ memset(backbuffer, 0x44, VIRTUAL_SCREEN_WIDTH *
+ (vjs.hardwareTypeNTSC ? VIRTUAL_SCREEN_HEIGHT_NTSC : VIRTUAL_SCREEN_HEIGHT_PAL)
+ * sizeof(uint32));
+
+ return true;
+}
+
+//
+// Free various SDL components
+//
+void VideoDone(void)
+{
+ if (vjs.useOpenGL)
+ sdlemu_close_opengl();
+
+ SDL_JoystickClose(joystick);
+ SDL_FreeSurface(surface);
+ free(backbuffer);
+}
//
// Render the backbuffer to the primary screen surface
//
void RenderBackbuffer(void)
{
+ // Handle frameskip *before* we do any heavy lifting here...
+
+ if (frame_ticker > 0)
+ {
+ frame_ticker--;
+ return;
+ }
+
+ frame_ticker = vjs.frameSkip; // Reset frame_ticker
+
if (SDL_MUSTLOCK(surface))
while (SDL_LockSurface(surface) < 0)
SDL_Delay(10);
- memcpy(surface->pixels, backbuffer, tom_getVideoModeWidth() * tom_getVideoModeHeight() * 2);
+// memcpy(surface->pixels, backbuffer, tom_getVideoModeWidth() * tom_getVideoModeHeight() * 2);
+// This memcpy is expensive--do some profiling to see what the impact is!
+ if (vjs.renderType == RT_NORMAL)
+ memcpy(surface->pixels, backbuffer, tom_getVideoModeWidth() * tom_getVideoModeHeight() * 4);
+ else if (vjs.renderType == RT_TV)
+ memcpy(surface->pixels, backbuffer, 1280 * tom_getVideoModeHeight() * 4);
if (SDL_MUSTLOCK(surface))
SDL_UnlockSurface(surface);
- if (useOpenGL)
+ if (vjs.useOpenGL)
+ // One of the reasons why OpenGL is slower then normal SDL rendering, is because
+ // the data is being pumped into the buffer every frame with a overflow as result.
+ // So, we going to render every 1 fps instead of every 0 fps.
+ // [Shamus] This is isn't why it's slower--see top of file for explanation... ;-)
+//The problem lies in this function...
sdlemu_draw_texture(mainSurface, surface, 1/*1=GL_QUADS*/);
else
{
//
void ResizeScreen(uint32 width, uint32 height)
{
- char window_title[256];
-
SDL_FreeSurface(surface);
- surface = SDL_CreateRGBSurface(SDL_SWSURFACE, width, height,
- 16, 0x7C00, 0x03E0, 0x001F, 0);
+ surface = SDL_CreateRGBSurface(SDL_SWSURFACE, width, height, 32,
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+ 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF);
+#else
+ 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000);
+#endif//*/
+
if (surface == NULL)
{
- WriteLog("TOM: Could not create primary SDL surface: %s", SDL_GetError());
- exit(1);
+ WriteLog("Video: Could not create primary SDL surface: %s", SDL_GetError());
+//This is just crappy. We shouldn't exit this way--it leaves all kinds of memory leaks
+//as well as screwing up SDL... !!! FIX !!!
+// exit(1);
+ // OK, this is cleaner. We can't continue if there is no surface created!
+ finished = true;
}
- sprintf(window_title, "Virtual Jaguar (%i x %i)", (int)width, (int)height);
-//Hmm.
-/* mainSurface = SDL_SetVideoMode(tom_width, tom_height, 16, mainSurfaceFlags);
-
- if (mainSurface == NULL)
+ if (vjs.useOpenGL)
{
- WriteLog("Joystick: SDL is unable to set the video mode: %s\n", SDL_GetError());
- exit(1);
- }//*/
+ // Recreate the texture because of the NTSC <-> PAL screen resize.
+//Not sure why this is here...
+//Is it because of the resized surface up above?
+ sdlemu_create_texture(surface, mainSurface, vjs.glFilter, 0);
+ }
+ else
+ {
+ mainSurface = SDL_SetVideoMode(width, height, 32, mainSurfaceFlags);
- SDL_WM_SetCaption(window_title, window_title);
+ if (mainSurface == NULL)
+ {
+ WriteLog("Video: SDL is unable to set the video mode: %s\n", SDL_GetError());
+// Don't exit because we can't resize!
+// exit(1);
+ }
+ }
-//This seems to work well for resizing...
- if (useOpenGL)
- sdlemu_resize_texture(surface, mainSurface);
+ char window_title[64];
+
+ sprintf(window_title, "Virtual Jaguar (%i x %i)", (int)width, (int)height);
+ SDL_WM_SetCaption((vjs.useOpenGL ? "Virtual Jaguar (OpenGL)" : window_title), "Virtual Jaguar");
}
//
-// Return the screen's pitch
+// Return the screen's width in pixels
//
-uint32 GetSDLScreenPitch(void)
+uint32 GetSDLScreenWidthInPixels(void)
{
-// extern SDL_Surface * surface;
-
- return surface->pitch;
+ return surface->pitch / 4; // Pitch / 4 since we're in 32BPP mode
}
//
// Fullscreen <-> window switching
//
-//NOTE: This does *NOT* work with OpenGL rendering! !!! FIX !!!
void ToggleFullscreen(void)
{
- fullscreen = !fullscreen;
+ vjs.fullscreen = !vjs.fullscreen;
mainSurfaceFlags &= ~SDL_FULLSCREEN;
- if (fullscreen)
+ if (vjs.fullscreen)
mainSurfaceFlags |= SDL_FULLSCREEN;
- mainSurface = SDL_SetVideoMode(tom_width, tom_height, 16, mainSurfaceFlags);
+ if (vjs.useOpenGL)
+ {
+ // When OpenGL is used, we're going to use a standard resolution of 640x480.
+ // This way we have good scaling functionality and when the screen is resized
+ // because of the NTSC <-> PAL resize, we only have to re-create the texture
+ // instead of initializing the entire OpenGL texture en screens.
+ mainSurface = SDL_SetVideoMode(640, 480, 32, mainSurfaceFlags);//*/
+
+ // Reset viewport, etc.
+ glViewport(0, 0, mainSurface->w, mainSurface->h);
+ glMatrixMode(GL_PROJECTION);
+ glPushMatrix();
+ glLoadIdentity();
+ glOrtho(0.0, (GLdouble)mainSurface->w, (GLdouble)mainSurface->h, 0.0, 0.0, 1.0);
+ glMatrixMode(GL_MODELVIEW);
+ glPushMatrix();
+ glLoadIdentity();
+ }
+ else
+ mainSurface = SDL_SetVideoMode(VIRTUAL_SCREEN_WIDTH,
+ (vjs.hardwareTypeNTSC ? VIRTUAL_SCREEN_HEIGHT_NTSC : VIRTUAL_SCREEN_HEIGHT_PAL),
+ 32, mainSurfaceFlags);
if (mainSurface == NULL)
{
- WriteLog("Joystick: SDL is unable to set the video mode: %s\n", SDL_GetError());
- exit(1);
+ WriteLog("Video: SDL was unable to switch the video to %s: %s\n", (vjs.fullscreen ? "fullscreen" : "windowed"), SDL_GetError());
+// Shouldn't exit because we can't switch! BAD!!!
+// exit(1);
+ return;
}
- SDL_WM_SetCaption("Virtual Jaguar", "Virtual Jaguar");
+ SDL_WM_SetCaption((vjs.useOpenGL ? "Virtual Jaguar (OpenGL)" : "Virtual Jaguar"), "Virtual Jaguar");
+
+ return;
}
projects / virtualjaguar / blobdiff