Initial conversion to SDL 2.

[thunder] / src / video.cpp

diff --git a/src/video.cpp b/src/video.cpp
new file mode 100644 (file)
index 0000000..787dbb0
--- /dev/null
+++ b/src/video.cpp
@@ -0,0 +1,110 @@
+//
+// VIDEO.CPP: SDL/local hardware specific video routines
+//
+// by James Hammons
+//
+// JLH = James Hammons <jlhamm@acm.org>
+//
+// WHO  WHEN        WHAT
+// ---  ----------  ------------------------------------------------------------
+// JLH  01/04/2006  Added changelog ;-)
+// JLH  01/20/2006  Cut out unnecessary buffering
+//
+
+#include "video.h"
+#include <string.h>    // Why??? (for memset, etc... Lazy!) Dunno why, but this just strikes me as wrong...
+#include <malloc.h>
+//#include "gui/gui.h"
+#include "icon-64x64.h"
+#include "log.h"
+//#include "settings.h"
+
+
+// Exported global variables (actually, these are LOCAL global variables, EXPORTED...)
+
+static SDL_Window * sdlWindow = NULL;
+SDL_Renderer * sdlRenderer = NULL;
+static SDL_Texture * sdlTexture = NULL;
+uint32_t scrBuffer[VIRTUAL_SCREEN_WIDTH * VIRTUAL_SCREEN_HEIGHT * sizeof(uint32_t)];
+
+struct
+{
+       bool fullscreen;
+} settings;
+
+//
+// Prime SDL and create surfaces
+//
+bool InitVideo(void)
+{
+       if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_AUDIO | SDL_INIT_TIMER | SDL_INIT_NOPARACHUTE) != 0)
+       {
+               WriteLog("Video: Could not initialize the SDL library: %s\n", SDL_GetError());
+               return false;
+       }
+
+       int retVal = SDL_CreateWindowAndRenderer(VIRTUAL_SCREEN_WIDTH * 3, VIRTUAL_SCREEN_HEIGHT * 3, SDL_WINDOW_OPENGL, &sdlWindow, &sdlRenderer);
+
+       if (retVal != 0)
+       {
+               WriteLog("Video: Could not window and/or renderer: %s\n", SDL_GetError());
+               return false;
+       }
+
+       // Make the scaled rendering look smoother.
+//     SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear");
+       SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "nearest");
+       SDL_RenderSetLogicalSize(sdlRenderer, VIRTUAL_SCREEN_WIDTH, VIRTUAL_SCREEN_HEIGHT);
+
+       // Set the application's icon & title...
+       SDL_Surface * iconSurface = SDL_CreateRGBSurfaceFrom(icon, 64, 64, 32, 64*4, 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000);
+       SDL_SetWindowIcon(sdlWindow, iconSurface);
+       SDL_FreeSurface(iconSurface);
+       SDL_SetWindowTitle(sdlWindow, "Thunder Emulator");
+
+       sdlTexture = SDL_CreateTexture(sdlRenderer,
+               SDL_PIXELFORMAT_ABGR8888, SDL_TEXTUREACCESS_STREAMING,
+               VIRTUAL_SCREEN_WIDTH, VIRTUAL_SCREEN_HEIGHT);
+
+       WriteLog("Video: Successfully initialized.\n");
+       return true;
+}
+
+
+//
+// Free various SDL components
+//
+void VideoDone(void)
+{
+       WriteLog("Video: Shutting down SDL...\n");
+       SDL_Quit();
+       WriteLog("Video: Done.\n");
+}
+
+
+//
+// Render the screen buffer to the primary screen surface
+//
+void RenderScreenBuffer(void)
+{
+       SDL_UpdateTexture(sdlTexture, NULL, scrBuffer, VIRTUAL_SCREEN_WIDTH * sizeof(Uint32));
+       SDL_RenderClear(sdlRenderer);
+       SDL_RenderCopy(sdlRenderer, sdlTexture, NULL, NULL);
+       SDL_RenderPresent(sdlRenderer);
+}
+
+
+//
+// Fullscreen <-> window switching
+//
+void ToggleFullScreen(void)
+{
+       settings.fullscreen = !settings.fullscreen;
+
+       int retVal = SDL_SetWindowFullscreen(sdlWindow, (settings.fullscreen ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0));
+       SDL_ShowCursor(settings.fullscreen ? 0 : 1);
+
+       if (retVal != 0)
+               WriteLog("Video::ToggleFullScreen: SDL error = %s\n", SDL_GetError());
+}
+