diff src/video/fbcon-1.3/SDL_fbvideo.c @ 3158:30f3b987fec3 gsoc2009_ps3

created env (fbcon-1.3) and added basic files
author Martin Lowinski <martin@goldtopf.org>
date Sat, 07 Nov 2009 11:35:19 +0000
parents
children 2632b7453516
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/video/fbcon-1.3/SDL_fbvideo.c	Sat Nov 07 11:35:19 2009 +0000
@@ -0,0 +1,208 @@
+/*
+	SDL - Simple DirectMedia Layer
+	Copyright (C) 1997-2009 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"
+
+/* SDL fbcon video driver implementation based on dummy, ps3 video driver
+ * and sourcecode of the fbcon implementation in sdl-1.2
+ *
+ * Initial work by Ryan C. Gordon (icculus@icculus.org). A good portion
+ *  of this was cut-and-pasted from Stephane Peter's work in the AAlib
+ *  SDL video driver.  Renamed to "DUMMY" by Sam Lantinga.
+ */
+
+#include "SDL_video.h"
+#include "../SDL_sysvideo.h"
+
+#include "SDL_fbvideo.h"
+#include "SDL_fbevents_c.h"
+#include "SDL_fbrender_c.h"
+#include "SDL_fbmodes_c.h"
+
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+
+#ifndef HAVE_GETPAGESIZE
+	#include <asm/page.h>           /* For definition of PAGE_SIZE */
+#endif
+
+#include <linux/vt.h>
+
+#define FBVID_DRIVER_NAME "fbcon"
+
+/* Initialization/Query functions */
+static int FB_VideoInit(_THIS);
+static int FB_SetDisplayMode(_THIS, SDL_DisplayMode * mode);
+static void FB_VideoQuit(_THIS);
+
+/* bootstrap functions */
+static int
+FB_Available(void)
+{
+	deprintf(1, "+FB_Available()\n");
+	const char *envr = SDL_getenv("SDL_VIDEODRIVER");
+	if ((envr) && (SDL_strcmp(envr, FBVID_DRIVER_NAME) == 0)) {
+		return (1);
+	}
+
+    int console = -1;
+    /* Added check for /fb/0 (devfs) */
+    /* but - use environment variable first... if it fails, still check defaults */
+    int idx = 0;
+    const char *SDL_fbdevs[4] = { NULL, "/dev/fb0", "/dev/fb/0", NULL };
+
+    SDL_fbdevs[0] = SDL_getenv("SDL_FBDEV");
+    if (!SDL_fbdevs[0]) {
+        idx++;
+	}
+    for (; SDL_fbdevs[idx]; idx++) {
+        console = open(SDL_fbdevs[idx], O_RDWR, 0);
+        if (console >= 0) {
+            close(console);
+            break;
+        }
+    }
+	deprintf(1, "-FB_Available()\n");
+    return (console >= 0);
+}
+
+static void
+FB_DeleteDevice(SDL_VideoDevice * device)
+{
+	deprintf(1, "+FB_DeleteDevice()\n");
+	SDL_free(device->driverdata);
+	SDL_free(device);
+	deprintf(1, "-FB_DeleteDevice()\n");
+}
+
+static SDL_VideoDevice *
+FB_CreateDevice(int devindex)
+{
+	deprintf(1, "+FB_CreateDevice()\n");
+    SDL_VideoDevice *device;
+    SDL_VideoData *data;
+
+    /* Initialize all variables that we clean on shutdown */
+    device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
+    if (!device) {
+        SDL_OutOfMemory();
+        if (device) {
+            SDL_free(device);
+        }
+        return (0);
+    }
+    data = (struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));
+    if (!data) {
+        SDL_OutOfMemory();
+        SDL_free(device);
+        return (0);
+    }
+    device->driverdata = data;
+
+    /* Set the function pointers */
+    device->VideoInit = FB_VideoInit;
+    device->VideoQuit = FB_VideoQuit;
+    device->SetDisplayMode = FB_SetDisplayMode;
+    device->PumpEvents = FB_PumpEvents;
+
+    device->free = FB_DeleteDevice;
+
+    deprintf(1, "-FB_CreateDevice()\n");
+    return device;
+}
+
+VideoBootStrap FB_bootstrap = {
+	FBVID_DRIVER_NAME, "Linux framebuffer video driver",
+	FB_Available, FB_CreateDevice
+};
+
+int
+FB_VideoInit(_THIS)
+{
+    deprintf(1, "+FB_VideoInit()\n");
+    SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
+	SDL_DisplayMode mode;
+    struct fb_fix_screeninfo finfo;
+    const char *SDL_fbdev;
+
+    /* Initialize the library */
+    SDL_fbdev = SDL_getenv("SDL_FBDEV");
+    if (SDL_fbdev == NULL) {
+        SDL_fbdev = "/dev/fb0";
+    }
+    data->console_fd = open(SDL_fbdev, O_RDWR, 0);
+    if (data->console_fd < 0) {
+        SDL_SetError("Unable to open %s", SDL_fbdev);
+        return -1;
+    }
+#if !SDL_THREADS_DISABLED
+    /* Create the hardware surface lock mutex */
+    data->hw_lock = SDL_CreateMutex();
+    if (data->hw_lock == NULL) {
+        SDL_SetError("Unable to create lock mutex");
+        FB_VideoQuit(_this);
+        return -1;
+    }
+#endif
+
+    /* Get the type of video hardware */
+    if (ioctl(data->console_fd, FBIOGET_FSCREENINFO, &finfo) < 0) {
+        SDL_SetError("Couldn't get console hardware info");
+        FB_VideoQuit(_this);
+        return -1;
+    }
+
+	/* Use a fake 32-bpp desktop mode */
+	mode.format = SDL_PIXELFORMAT_RGB888;
+	mode.w = 1024;
+	mode.h = 768;
+	mode.refresh_rate = 0;
+	mode.driverdata = NULL;
+	SDL_AddBasicVideoDisplay(&mode);
+	SDL_AddRenderDriver(0, &SDL_FB_RenderDriver);
+
+	SDL_zero(mode);
+	SDL_AddDisplayMode(0, &mode);
+
+	/* We're done! */
+    deprintf(1, "-FB_VideoInit()\n");
+	return 0;
+}
+
+static int
+FB_SetDisplayMode(_THIS, SDL_DisplayMode * mode)
+{
+    deprintf(1, "+FB_SetDisplayMode()\n");
+    deprintf(1, "-FB_SetDisplayMode()\n");
+	return 0;
+}
+
+void
+FB_VideoQuit(_THIS)
+{
+    deprintf(1, "+FB_VideoQuit()\n");
+    deprintf(1, "-FB_VideoQuit()\n");
+}
+