Add SDL_video.c

Makefile

@@ -73,7 +73,8 @@ SRCS += sdl/SDL_error.cpp \
 		  sdl/video/SDL_blit_N.cpp \
 		  sdl/video/SDL_bmp.cpp \
 		  sdl/video/SDL_pixels.cpp \
-		  sdl/video/SDL_surface.cpp
+		  sdl/video/SDL_surface.cpp \
+		  sdl/video/SDL_video.cpp
 
 OBJS = $(filter %.o, $(SRCS:.c=.o) $(SRCS:.cpp=.o))
 

sdl/video/SDL_video.c

@@ -0,0 +1,149 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2012 Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+/* The high-level video driver subsystem */
+
+#include "SDL.h"
+#include "SDL_sysvideo.h"
+#include "SDL_blit.h"
+#include "SDL_pixels_c.h"
+
+/*
+ * Initialize the video and event subsystems -- determine native pixel format
+ */
+int LRSDL_VideoInit (const char *driver_name, Uint32 flags)
+{
+	return(0);
+}
+
+/*
+ * Check to see if a particular video mode is supported.
+ * It returns 0 if the requested mode is not supported under any bit depth,
+ * or returns the bits-per-pixel of the closest available mode with the
+ * given width and height.  If this bits-per-pixel is different from the
+ * one used when setting the video mode, SDL_SetVideoMode() will succeed,
+ * but will emulate the requested bits-per-pixel with a shadow surface.
+ */
+static Uint8 SDL_closest_depths[4][8] = {
+	/* 8 bit closest depth ordering */
+	{ 0, 8, 16, 15, 32, 24, 0, 0 },
+	/* 15,16 bit closest depth ordering */
+	{ 0, 16, 15, 32, 24, 8, 0, 0 },
+	/* 24 bit closest depth ordering */
+	{ 0, 24, 32, 16, 15, 8, 0, 0 },
+	/* 32 bit closest depth ordering */
+	{ 0, 32, 16, 15, 24, 8, 0, 0 }
+};
+
+/*
+ * Performs hardware double buffering, if possible, or a full update if not.
+ */
+int LRSDL_Flip(SDL_Surface *screen)
+{
+	return(0);
+}
+
+static void LRSetPalette_logical(SDL_Surface *screen, SDL_Color *colors,
+			       int firstcolor, int ncolors)
+{
+	SDL_Palette *pal = screen->format->palette;
+	SDL_Palette *vidpal;
+
+	if ( colors != (pal->colors + firstcolor) ) {
+		SDL_memcpy(pal->colors + firstcolor, colors,
+		       ncolors * sizeof(*colors));
+	}
+
+	LRSDL_FormatChanged(screen);
+}
+
+/*
+ * Set the physical and/or logical colormap of a surface:
+ * Only the screen has a physical colormap. It determines what is actually
+ * sent to the display.
+ * The logical colormap is used to map blits to/from the surface.
+ * 'which' is one or both of SDL_LOGPAL, SDL_PHYSPAL
+ *
+ * Return nonzero if all colours were set as requested, or 0 otherwise.
+ */
+int LRSDL_SetPalette(SDL_Surface *screen, int which,
+		   SDL_Color *colors, int firstcolor, int ncolors)
+{
+	SDL_Palette *pal;
+	int gotall;
+	int palsize;
+
+	if ( !screen )
+		return 0;
+
+   /* only screens have physical palettes */
+   which &= ~SDL_PHYSPAL;
+
+	/* Verify the parameters */
+	pal = screen->format->palette;
+	if( !pal ) {
+		return 0;	/* not a palettized surface */
+	}
+	gotall = 1;
+	palsize = 1 << screen->format->BitsPerPixel;
+	if ( ncolors > (palsize - firstcolor) ) {
+		ncolors = (palsize - firstcolor);
+		gotall = 0;
+	}
+
+	if ( which & SDL_LOGPAL )
+		/*
+		 * Logical palette change: The actual screen isn't affected,
+		 * but the internal colormap is altered so that the
+		 * interpretation of the pixel values (for blits etc) is
+		 * changed.
+		 */
+		LRSetPalette_logical(screen, colors, firstcolor, ncolors);
+
+	return gotall;
+}
+
+int SDL_SetColors(SDL_Surface *screen, SDL_Color *colors, int firstcolor,
+		  int ncolors)
+{
+	return SDL_SetPalette(screen, SDL_LOGPAL | SDL_PHYSPAL,
+			      colors, firstcolor, ncolors);
+}
+
+/*
+ * Clean up the video subsystem
+ */
+void LRSDL_VideoQuit (void)
+{
+}
+
+/*
+ * Sets/Gets the title and icon text of the display window, if any.
+ */
+void SDL_WM_SetCaption (const char *title, const char *icon)
+{
+}
+
+void SDL_WM_GetCaption (char **title, char **icon)
+{
+}