Changes for 32BPP rendering

[virtualjaguar] / src / video.cpp

diff --git a/src/video.cpp b/src/video.cpp
index cd2a844a95bb068e88723e158795a7649f56d8d6..45fd04c2af8f73e121ef49590f471f8c5ca45c0c 100644 (file)
--- a/src/video.cpp
+++ b/src/video.cpp
@@ -15,7 +15,8 @@
 //And now, they do! :-)
 SDL_Surface * surface, * mainSurface;
 Uint32 mainSurfaceFlags;
-int16 * backbuffer;
+//int16 * backbuffer;
+uint32 * backbuffer;
 SDL_Joystick * joystick;
 
 // One of the reasons why OpenGL is slower then normal SDL rendering, is because
@@ -25,7 +26,7 @@ SDL_Joystick * joystick;
 // [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.
+//          60 FPS. But doing so will have some nasty side effects in some games.
 //          You have been warned!
 
 int frame_ticker = vjs.frameSkip;
@@ -64,7 +65,7 @@ bool InitVideo(void)
        if (vjs.fullscreen)
                mainSurfaceFlags |= SDL_FULLSCREEN;
 
-       if (!vjs.useOpenGL)
+/*     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),
@@ -74,7 +75,19 @@ bool InitVideo(void)
                // 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);
+               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)
        {
@@ -85,9 +98,17 @@ bool InitVideo(void)
        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,
+/*     surface = SDL_CreateRGBSurface(SDL_SWSURFACE, VIRTUAL_SCREEN_WIDTH,
                (vjs.hardwareTypeNTSC ? VIRTUAL_SCREEN_HEIGHT_NTSC : VIRTUAL_SCREEN_HEIGHT_PAL),
-               16, 0x7C00, 0x03E0, 0x001F, 0);
+               16, 0x7C00, 0x03E0, 0x001F, 0);//*/
+//24BPP
+       surface = SDL_CreateRGBSurface(SDL_SWSURFACE, VIRTUAL_SCREEN_WIDTH,
+               (vjs.hardwareTypeNTSC ? VIRTUAL_SCREEN_HEIGHT_NTSC : VIRTUAL_SCREEN_HEIGHT_PAL), 32,
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+                0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF);
+#else
+                0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000);
+#endif//*/
 
        if (surface == NULL)
        {
@@ -127,11 +148,17 @@ bool InitVideo(void)
        // Set up the backbuffer
 //To be safe, this should be 1280 * 625 * 2...
 //     backbuffer = (int16 *)malloc(845 * 525 * sizeof(int16));
-       backbuffer = (int16 *)malloc(1280 * 625 * sizeof(int16));
+/*     backbuffer = (int16 *)malloc(1280 * 625 * sizeof(int16));
+//     memset(backbuffer, 0x44, VIRTUAL_SCREEN_WIDTH * VIRTUAL_SCREEN_HEIGHT_NTSC * sizeof(int16));
+       memset(backbuffer, 0x44, VIRTUAL_SCREEN_WIDTH *
+               (vjs.hardwareTypeNTSC ? VIRTUAL_SCREEN_HEIGHT_NTSC : VIRTUAL_SCREEN_HEIGHT_PAL)
+               * sizeof(int16));//*/
+//24BPP
+       backbuffer = (uint32 *)malloc(1280 * 625 * sizeof(uint32));
 //     memset(backbuffer, 0x44, VIRTUAL_SCREEN_WIDTH * VIRTUAL_SCREEN_HEIGHT_NTSC * sizeof(int16));
        memset(backbuffer, 0x44, VIRTUAL_SCREEN_WIDTH *
                (vjs.hardwareTypeNTSC ? VIRTUAL_SCREEN_HEIGHT_NTSC : VIRTUAL_SCREEN_HEIGHT_PAL)
-               * sizeof(int16));
+               * sizeof(uint32));
 
        return true;
 }
@@ -158,7 +185,8 @@ void RenderBackbuffer(void)
                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);
+       memcpy(surface->pixels, backbuffer, tom_getVideoModeWidth() * tom_getVideoModeHeight() * 4);
 
        if (SDL_MUSTLOCK(surface))
                SDL_UnlockSurface(surface);
@@ -193,7 +221,14 @@ 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, 16, 0x7C00, 0x03E0, 0x001F, 0);
+//24BPP
+       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)
        {
@@ -231,6 +266,14 @@ uint32 GetSDLScreenPitch(void)
        return surface->pitch;
 }
 
+//
+// Return the screen's width in pixels
+//
+uint32 GetSDLScreenWidthInPixels(void)
+{
+       return surface->pitch / 4;                                              // Pitch / 4 since we're in 32BPP mode
+}
+
 //
 // Fullscreen <-> window switching
 //