Merged Martin's code changes from Google Summer of Code 2009

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%403787

Makefile.in

@@ -40,6 +40,11 @@ SDLMAIN_TARGET = libSDLmain.a
 SDLMAIN_SOURCES = @SDLMAIN_SOURCES@
 SDLMAIN_OBJECTS = @SDLMAIN_OBJECTS@
 
+# PS3 SPU programs
+SPU_GCC = @SPU_GCC@
+EMBEDSPU = @EMBEDSPU@
+include $(srcdir)/src/video/ps3/spulibs/Makefile
+
 DIST = acinclude.m4 autogen.sh Borland.html Borland.zip BUGS build-scripts configure configure.in COPYING CREDITS docs docs.html include INSTALL Makefile.dc Makefile.minimal Makefile.in README* sdl-config.in sdl.m4 sdl.pc.in SDL.qpg.in SDL.spec SDL.spec.in src test TODO VisualC.html VisualC VisualCE Watcom-OS2.zip Watcom-Win32.zip WhatsNew Xcode
 
 HDRS = SDL.h SDL_atomic.h SDL_audio.h SDL_cdrom.h SDL_compat.h SDL_cpuinfo.h SDL_endian.h SDL_error.h SDL_events.h SDL_haptic.h SDL_joystick.h SDL_keyboard.h SDL_keysym.h SDL_loadso.h SDL_main.h SDL_mouse.h SDL_mutex.h SDL_name.h SDL_opengl.h SDL_opengles.h SDL_pixels.h SDL_platform.h SDL_power.h SDL_quit.h SDL_rect.h SDL_revision.h SDL_rwops.h SDL_scancode.h SDL_stdinc.h SDL_surface.h SDL_syswm.h SDL_thread.h SDL_timer.h SDL_types.h SDL_version.h SDL_video.h begin_code.h close_code.h

README.PS3

+
+SDL on Sony Playstation3
+------------------------
+
+Installation:
+  First, you have to install the Cell SDK
+  - Download the Cell SDK installer RPM and ISO images to
+    a temporary directory such as /tmp/cellsdk.
+  - Mount the image: mount -o loop CellSDK-Devel-Fedora_3.1.0.0.0.iso /tmp/cellsdk
+  - Install the SDK installer: rpm -ivh cell-install-3.1.0-0.0.noarch.rpm
+  - Install the SDK: cd /opt/cell && ./cellsdk --iso /tmp/cellsdkiso install
+
+  You'll than need to install the SPU-libs
+  - Run make ps3-libs && make ps3libs-install
+
+  Finally, install SDL
+  - Go to SDL-1.2/ and build SDL like any other GNU style package.
+  e.g.
+    - Build the configure-script with ./autogen.sh
+    - Configure SDL for your needs: ./configure --enable-video-ps3 ...
+    - Build and install it: make && make install
+
+
+Todo:
+  - Mouse & Keyboard support
+  - On SPU-side the current scaler and converter restrictions are:
+    - resolution has to be a multiple of 8 (will work on that)
+    - scaler/converter only supports the YV12 and IYUV format
+    - the scaler works only bilinear (lanzos would be nice)
+  - Optimize the SPU-program handling on the PPE side
+  - Integrate spumedia in SDL
+
+Have fun!
+  Dirk Herrendoerfer <d.herrendoerfer [at] de [dot ibm [dot] com>
+

configure.in

@@ -1509,6 +1509,46 @@ AC_HELP_STRING([--enable-video-ps2gs], [use PlayStation 2 GS video driver [[defa
     fi
 }
 
+dnl See if we're running on PlayStation 3 Cell hardware
+CheckPS3()
+{
+  AC_ARG_ENABLE(video-ps3,
+                AC_HELP_STRING([--enable-video-ps3], [use PlayStation 3 Cell driver [[default=yes]]]),
+                , enable_video_ps3=yes)
+  if test x$enable_video = xyes -a x$enable_video_ps3 = xyes; then 
+    video_ps3=no
+    AC_CHECK_HEADER([linux/fb.h])
+    AC_CHECK_HEADER([asm/ps3fb.h], [have_ps3fb_hdr=yes], [],
+			[#ifndef _LINUX_TYPES_H
+				#include <linux/types.h>
+			#endif])
+    AC_CHECK_HEADER([libspe2.h], have_libspe2_hdr=yes)
+    AC_CHECK_LIB([spe2], spe_context_create, have_spe2_lib=yes)
+
+    AC_CHECK_PROGS(SPU_GCC, [spu-gcc])
+    AC_CHECK_PROGS(EMBEDSPU, [embedspu])
+
+    have_spu_libs=yes
+    AC_CHECK_LIB([fb_writer_spu], [main], [], [have_spu_libs=no])
+    AC_CHECK_LIB([yuv2rgb_spu], [main], [], [have_spu_libs=no])
+    AC_CHECK_LIB([bilin_scaler_spu], [main], [], [have_spu_libs=no])
+    if test x$have_ps3fb_hdr = xyes -a x$have_libspe2_hdr = xyes -a x$have_spe2_lib = xyes -a "$SPU_GCC" -a "$EMBEDSPU"; then
+        AC_DEFINE(SDL_VIDEO_DRIVER_PS3)
+        video_ps3=yes
+        have_video=yes
+        SOURCES="$SOURCES $srcdir/src/video/ps3/*.c"
+        EXTRA_CFLAGS="$EXTRA_CFLAGS -I/opt/cell/sdk/usr/include"
+        EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L/opt/cell/sdk/usr/lib -lspe2 -lfb_writer_spu -lyuv2rgb_spu -lbilin_scaler_spu"
+
+        if test x$have_spu_libs = xno; then 
+              AC_MSG_WARN([ps3libs missing, please run make ps3libs])
+        fi
+    fi
+    AC_MSG_CHECKING([for PlayStation 3 Cell support])
+    AC_MSG_RESULT([$video_ps3])
+  fi
+}
+
 dnl Find the SVGAlib includes and libraries
 CheckSVGA()
 {
@@ -2401,6 +2441,7 @@ case "$host" in
         CheckDirectFB
         CheckFusionSound
         CheckPS2GS
+        CheckPS3
         CheckSVGA
         CheckVGL
         CheckWscons

include/SDL_config.h.in

@@ -273,6 +273,7 @@
 #undef SDL_VIDEO_DRIVER_PHOTON
 #undef SDL_VIDEO_DRIVER_QNXGF
 #undef SDL_VIDEO_DRIVER_PS2GS
+#undef SDL_VIDEO_DRIVER_PS3
 #undef SDL_VIDEO_DRIVER_RISCOS
 #undef SDL_VIDEO_DRIVER_SVGALIB
 #undef SDL_VIDEO_DRIVER_VGL

src/video/SDL_sysvideo.h

@@ -359,6 +359,9 @@ extern VideoBootStrap DirectFB_bootstrap;
 #if SDL_VIDEO_DRIVER_PS2GS
 extern VideoBootStrap PS2GS_bootstrap;
 #endif
+#if SDL_VIDEO_DRIVER_PS3
+extern VideoBootStrap PS3_bootstrap;
+#endif
 #if SDL_VIDEO_DRIVER_VGL
 extern VideoBootStrap VGL_bootstrap;
 #endif

src/video/SDL_video.c

@@ -73,6 +73,9 @@ static VideoBootStrap *bootstrap[] = {
 #if SDL_VIDEO_DRIVER_PS2GS
     &PS2GS_bootstrap,
 #endif
+#if SDL_VIDEO_DRIVER_PS3
+    &PS3_bootstrap,
+#endif
 #if SDL_VIDEO_DRIVER_VGL
     &VGL_bootstrap,
 #endif

src/video/SDL_yuv_sw.c

@@ -88,32 +88,6 @@
 #include "SDL_yuv_sw_c.h"
 
 
-struct SDL_SW_YUVTexture
-{
-    Uint32 format;
-    Uint32 target_format;
-    int w, h;
-    Uint8 *pixels;
-    int *colortab;
-    Uint32 *rgb_2_pix;
-    void (*Display1X) (int *colortab, Uint32 * rgb_2_pix,
-                       unsigned char *lum, unsigned char *cr,
-                       unsigned char *cb, unsigned char *out,
-                       int rows, int cols, int mod);
-    void (*Display2X) (int *colortab, Uint32 * rgb_2_pix,
-                       unsigned char *lum, unsigned char *cr,
-                       unsigned char *cb, unsigned char *out,
-                       int rows, int cols, int mod);
-
-    /* These are just so we don't have to allocate them separately */
-    Uint16 pitches[3];
-    Uint8 *planes[3];
-
-    /* This is a temporary surface in case we have to stretch copy */
-    SDL_Surface *stretch;
-    SDL_Surface *display;
-};
-
 /* The colorspace conversion functions */
 
 #if (__GNUC__ > 2) && defined(__i386__) && __OPTIMIZE__ && SDL_ASSEMBLY_ROUTINES

src/video/SDL_yuv_sw_c.h

@@ -26,6 +26,32 @@
 
 /* This is the software implementation of the YUV texture support */
 
+struct SDL_SW_YUVTexture
+{
+    Uint32 format;
+    Uint32 target_format;
+    int w, h;
+    Uint8 *pixels;
+    int *colortab;
+    Uint32 *rgb_2_pix;
+    void (*Display1X) (int *colortab, Uint32 * rgb_2_pix,
+                       unsigned char *lum, unsigned char *cr,
+                       unsigned char *cb, unsigned char *out,
+                       int rows, int cols, int mod);
+    void (*Display2X) (int *colortab, Uint32 * rgb_2_pix,
+                       unsigned char *lum, unsigned char *cr,
+                       unsigned char *cb, unsigned char *out,
+                       int rows, int cols, int mod);
+
+    /* These are just so we don't have to allocate them separately */
+    Uint16 pitches[3];
+    Uint8 *planes[3];
+
+    /* This is a temporary surface in case we have to stretch copy */
+    SDL_Surface *stretch;
+    SDL_Surface *display;
+};
+
 typedef struct SDL_SW_YUVTexture SDL_SW_YUVTexture;
 
 SDL_SW_YUVTexture *SDL_SW_CreateYUVTexture(Uint32 format, int w, int h);

src/video/ps3/SDL_ps3events.c

+/*
+    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"
+
+#include "../../events/SDL_sysevents.h"
+#include "../../events/SDL_events_c.h"
+
+#include "SDL_ps3video.h"
+#include "SDL_ps3events_c.h"
+
+void
+PS3_PumpEvents(_THIS)
+{
+    /* do nothing. */
+}
+
+/* vi: set ts=4 sw=4 expandtab: */

src/video/ps3/SDL_ps3events_c.h

+/*
+    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"
+
+#include "SDL_ps3video.h"
+
+extern void PS3_PumpEvents(_THIS);
+
+/* vi: set ts=4 sw=4 expandtab: */

src/video/ps3/SDL_ps3modes.c

+/*
+    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"
+
+#include "SDL_ps3video.h"
+
+void
+PS3_InitModes(_THIS)
+{
+    deprintf(1, "+PS3_InitModes()\n");
+    SDL_VideoDisplay display;
+    SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
+    SDL_DisplayMode mode;
+    PS3_DisplayModeData *modedata;
+    unsigned long vid = 0;
+
+    modedata = (PS3_DisplayModeData *) SDL_malloc(sizeof(*modedata));
+    if (!modedata) {
+        return;
+    }
+
+    /* Setting up the DisplayMode based on current settings */
+    struct ps3fb_ioctl_res res;
+    if (ioctl(data->fbdev, PS3FB_IOCTL_SCREENINFO, &res)) {
+        SDL_SetError("Can't get PS3FB_IOCTL_SCREENINFO");
+    }
+    mode.format = SDL_PIXELFORMAT_RGB888;
+    mode.refresh_rate = 0;
+    mode.w = res.xres;
+    mode.h = res.yres;
+
+    /* Setting up driver specific mode data,
+     * Get the current ps3 specific videmode number */
+    if (ioctl(data->fbdev, PS3FB_IOCTL_GETMODE, (unsigned long)&vid)) {
+        SDL_SetError("Can't get PS3FB_IOCTL_GETMODE");
+    }
+    deprintf(2, "PS3FB_IOCTL_GETMODE = %u\n", vid);
+    modedata->mode = vid;
+    mode.driverdata = modedata;
+
+    /* Set display's videomode and add it */
+    SDL_zero(display);
+    display.desktop_mode = mode;
+    display.current_mode = mode;
+
+    SDL_AddVideoDisplay(&display);
+    deprintf(1, "-PS3_InitModes()\n");
+}
+
+/* DisplayModes available on the PS3 */
+static SDL_DisplayMode ps3fb_modedb[] = {
+    /* VESA */
+    {SDL_PIXELFORMAT_RGB888, 1280, 768, 0, NULL}, // WXGA
+    {SDL_PIXELFORMAT_RGB888, 1280, 1024, 0, NULL}, // SXGA
+    {SDL_PIXELFORMAT_RGB888, 1920, 1200, 0, NULL}, // WUXGA
+    /* Native resolutions (progressive, "fullscreen") */
+    {SDL_PIXELFORMAT_RGB888, 720, 480, 0, NULL}, // 480p
+    {SDL_PIXELFORMAT_RGB888, 1280, 720, 0, NULL}, // 720p
+    {SDL_PIXELFORMAT_RGB888, 1920, 1080, 0, NULL} // 1080p
+};
+
+/* PS3 videomode number according to ps3fb_modedb */
+static PS3_DisplayModeData ps3fb_data[] = {
+    {11}, {12}, {13}, {130}, {131}, {133}, 
+};
+
+void
+PS3_GetDisplayModes(_THIS) {
+    deprintf(1, "+PS3_GetDisplayModes()\n");
+    SDL_DisplayMode mode;
+    unsigned int nummodes;
+
+    nummodes = sizeof(ps3fb_modedb) / sizeof(SDL_DisplayMode);
+
+    int n;
+    for (n=0; n<nummodes; ++n) {
+        /* Get driver specific mode data */
+        ps3fb_modedb[n].driverdata = &ps3fb_data[n];
+
+        /* Add DisplayMode to list */
+        deprintf(2, "Adding resolution %u x %u\n", ps3fb_modedb[n].w, ps3fb_modedb[n].h);
+        SDL_AddDisplayMode(_this->current_display, &ps3fb_modedb[n]);
+    }
+    deprintf(1, "-PS3_GetDisplayModes()\n");
+}
+
+int
+PS3_SetDisplayMode(_THIS, SDL_DisplayMode * mode)
+{
+    deprintf(1, "+PS3_SetDisplayMode()\n");
+    SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
+    PS3_DisplayModeData *dispdata = (PS3_DisplayModeData *) mode->driverdata;
+
+    /* Set the new DisplayMode */
+    deprintf(2, "Setting PS3FB_MODE to %u\n", dispdata->mode);
+    if (ioctl(data->fbdev, PS3FB_IOCTL_SETMODE, (unsigned long)&dispdata->mode)) {
+        deprintf(2, "Could not set PS3FB_MODE\n");
+        SDL_SetError("Could not set PS3FB_MODE\n");
+        return -1;
+    }
+
+    deprintf(1, "-PS3_SetDisplayMode()\n");
+    return 0;
+}
+
+void
+PS3_QuitModes(_THIS) {
+    deprintf(1, "+PS3_QuitModes()\n");
+
+    /* There was no mem allocated for driverdata */
+    int i, j;
+    for (i = _this->num_displays; i--;) {
+        SDL_VideoDisplay *display = &_this->displays[i];
+        for (j = display->num_display_modes; j--;) {
+            display->display_modes[j].driverdata = NULL;
+        }
+    }
+
+    deprintf(1, "-PS3_QuitModes()\n");
+}
+
+/* vi: set ts=4 sw=4 expandtab: */

src/video/ps3/SDL_ps3modes_c.h

+/*
+    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"
+
+#ifndef _SDL_ps3modes_h
+#define _SDL_ps3modes_h
+
+extern void PS3_InitModes(_THIS);
+extern void PS3_GetDisplayModes(_THIS);
+extern int PS3_SetDisplayMode(_THIS, SDL_DisplayMode * mode);
+extern void PS3_QuitModes(_THIS);
+
+#endif /* SDL_ps3modes_h */
+
+/* vi: set ts=4 sw=4 expandtab: */

src/video/ps3/SDL_ps3render_c.h

+/*
+    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"
+
+/* Default framebuffer device on PS3 */
+/* SDL surface based renderer implementation */
+
+extern SDL_RenderDriver SDL_PS3_RenderDriver;
+
+/* vi: set ts=4 sw=4 expandtab: */

src/video/ps3/SDL_ps3spe.c

+/*
+    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"
+
+#include "SDL_video.h"
+#include "SDL_ps3spe_c.h"
+
+#include "SDL_ps3video.h"
+#include "SDL_ps3render_c.h"
+
+/* Start the SPE thread */
+int SPE_Start(spu_data_t * spe_data)
+{
+  deprintf(2, "[PS3->SPU] Start SPE: %s\n", spe_data->program_name);
+  if (!(spe_data->booted))
+    SPE_Boot(spe_data);
+
+  /* To allow re-running of context, spe_ctx_entry has to be set before each call */
+  spe_data->entry = SPE_DEFAULT_ENTRY;
+  spe_data->error_code = 0;
+
+  /* Create SPE thread and run */
+  deprintf(2, "[PS3->SPU] Create Thread: %s\n", spe_data->program_name);
+  if (pthread_create
+      (&spe_data->thread, NULL, (void *)&SPE_RunContext, (void *)spe_data)) {
+    deprintf(2, "[PS3->SPU] Could not create pthread for spe: %s\n", spe_data->program_name);
+    SDL_SetError("[PS3->SPU] Could not create pthread for spe");
+    return -1;
+  }
+
+  if (spe_data->keepalive)
+    SPE_WaitForMsg(spe_data, SPU_READY);
+}
+
+/* Stop the SPE thread */
+int SPE_Stop(spu_data_t * spe_data)
+{
+  deprintf(2, "[PS3->SPU] Stop SPE: %s\n", spe_data->program_name);
+  /* Wait for SPE thread to complete */
+  deprintf(2, "[PS3->SPU] Wait for SPE thread to complete: %s\n", spe_data->program_name);
+  if (pthread_join(spe_data->thread, NULL)) {
+    deprintf(2, "[PS3->SPU] Failed joining the thread: %s\n", spe_data->program_name);
+    SDL_SetError("[PS3->SPU] Failed joining the thread");
+    return -1;
+  }
+
+  return 0;
+}
+
+/* Create SPE context and load program */
+int SPE_Boot(spu_data_t * spe_data)
+{
+  /* Create SPE context */
+  deprintf(2, "[PS3->SPU] Create SPE Context: %s\n", spe_data->program_name);
+  spe_data->ctx = spe_context_create(0, NULL);
+  if (spe_data->ctx == NULL) {
+    deprintf(2, "[PS3->SPU] Failed creating SPE context: %s\n", spe_data->program_name);
+    SDL_SetError("[PS3->SPU] Failed creating SPE context");
+    return -1;
+  }
+
+  /* Load SPE object into SPE local store */
+  deprintf(2, "[PS3->SPU] Load Program into SPE: %s\n", spe_data->program_name);
+  if (spe_program_load(spe_data->ctx, &spe_data->program)) {
+    deprintf(2, "[PS3->SPU] Failed loading program into SPE context: %s\n", spe_data->program_name);
+    SDL_SetError
+        ("[PS3->SPU] Failed loading program into SPE context");
+    return -1;
+  }
+  spe_data->booted = 1;
+  deprintf(2, "[PS3->SPU] SPE boot successful\n");
+
+  return 0;
+}
+
+/* (Stop and) shutdown the SPE */
+int SPE_Shutdown(spu_data_t * spe_data)
+{
+  if (spe_data->keepalive && spe_data->booted) {
+    SPE_SendMsg(spe_data, SPU_EXIT);
+    SPE_Stop(spe_data);
+  }
+
+  /* Destroy SPE context */
+  deprintf(2, "[PS3->SPU] Destroy SPE context: %s\n", spe_data->program_name);
+  if (spe_context_destroy(spe_data->ctx)) {
+    deprintf(2, "[PS3->SPU] Failed destroying context: %s\n", spe_data->program_name);
+    SDL_SetError("[PS3->SPU] Failed destroying context");
+    return -1;
+  }
+  deprintf(2, "[PS3->SPU] SPE shutdown successful: %s\n", spe_data->program_name);
+  return 0;
+}
+
+/* Send message to the SPE via mailboxe */
+int SPE_SendMsg(spu_data_t * spe_data, unsigned int msg)
+{
+  deprintf(2, "[PS3->SPU] Sending message %u to %s\n", msg, spe_data->program_name);
+  /* Send one message, block until message was sent */
+  unsigned int spe_in_mbox_msgs[1];
+  spe_in_mbox_msgs[0] = msg;
+  int in_mbox_write = spe_in_mbox_write(spe_data->ctx, spe_in_mbox_msgs, 1, SPE_MBOX_ALL_BLOCKING);
+
+  if (1 > in_mbox_write) {
+    deprintf(2, "[PS3->SPU] No message could be written to %s\n", spe_data->program_name);
+    SDL_SetError("[PS3->SPU] No message could be written");
+    return -1;
+  }
+  return 0;
+}
+
+
+/* Read 1 message from SPE, block until at least 1 message was received */
+int SPE_WaitForMsg(spu_data_t * spe_data, unsigned int msg)
+{
+  deprintf(2, "[PS3->SPU] Waiting for message from %s\n", spe_data->program_name);
+  unsigned int out_messages[1];
+  while (!spe_out_mbox_status(spe_data->ctx));
+  int mbox_read = spe_out_mbox_read(spe_data->ctx, out_messages, 1);
+  deprintf(2, "[PS3->SPU] Got message from %s, message was %u\n", spe_data->program_name, out_messages[0]);
+  if (out_messages[0] == msg)
+    return 0;
+  else
+    return -1;
+}
+
+/* Re-runnable invocation of the spe_context_run call */
+void SPE_RunContext(void *thread_argp)
+{
+  /* argp is the pointer to argument to be passed to the SPE program */
+  spu_data_t *args = (spu_data_t *) thread_argp;
+  deprintf(3, "[PS3->SPU] void* argp=0x%x\n", (unsigned int)args->argp);
+
+  /* Run it.. */
+  deprintf(2, "[PS3->SPU] Run SPE program: %s\n", args->program_name);
+  if (spe_context_run
+      (args->ctx, &args->entry, 0, (void *)args->argp, NULL,
+       NULL) < 0) {
+    deprintf(2, "[PS3->SPU] Failed running SPE context: %s\n", args->program_name);
+    SDL_SetError("[PS3->SPU] Failed running SPE context: %s", args->program_name);
+    exit(1);
+  }
+
+  pthread_exit(NULL);
+}
+
+/* vi: set ts=4 sw=4 expandtab: */

src/video/ps3/SDL_ps3spe_c.h

+/*
+    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
+*/
+
+/* This SPE API basically provides 3 ways to run and control a program
+ * on the SPE:
+ * - Start and stop the program (keepalive=0).
+ *   SPE_Start() will implicitly boot up the program, create a thread and run
+ *   the context.
+ *   SPE_Stop() will join the (terminated) thread (may block) and return.
+ * - Boot the program and run it (keepalive=0).
+ *   SPE_Boot() will create a context and load the program and finally start
+ *   the context with SPE_Start().
+ *   SPE_Stop() will savely end the program.
+ * - Boot, Run and send messages to the program (keepalive=1).
+ *   Start the program by using one of the methods described above. When
+ *   received the READY-message the program is in its infinite loop waiting
+ *   for new messages.
+ *   Every time you run the program, send SPU_START and the address of the
+ *   according struct using SPE_SendMsg().
+ *   SPE_WaitForMsg() will than wait for SPU_FIN and is blocking.
+ *   SPE_Shutdown() sends SPU_EXIT and finally stops the program.
+ *
+ * Therefor the SPE program
+ * - either runs once and returns
+ * - or runs in an infinite loop and is controlled by messages.
+ */
+
+#include "SDL_config.h"
+
+#include "spulibs/spu_common.h"
+
+#include <libspe2.h>
+
+#ifndef _SDL_ps3spe_h
+#define _SDL_ps3spe_h
+
+/* SPU handling data */
+typedef struct spu_data {
+    /* Context to be executed */
+    spe_context_ptr_t ctx;
+    spe_program_handle_t program;
+    /* Thread running the context */
+    pthread_t thread;
+    /* For debugging */
+    char * program_name;
+    /* SPE_Start() or SPE_Boot() called */
+    unsigned int booted;
+    /* Runs the program in an infinite loop? */
+    unsigned int keepalive;
+    unsigned int entry;
+    /* Exit code of the program */
+    int error_code;
+    /* Arguments passed to the program */
+    void * argp;
+} spu_data_t;
+
+/* SPU specific API functions */
+int SPE_Start(spu_data_t * spe_data);
+int SPE_Stop(spu_data_t * spe_data);
+int SPE_Boot(spu_data_t * spe_data);
+int SPE_Shutdown(spu_data_t * spe_data);
+int SPE_SendMsg(spu_data_t * spe_data, unsigned int msg);
+int SPE_WaitForMsg(spu_data_t * spe_data, unsigned int msg);
+void SPE_RunContext(void *thread_argp);
+
+#endif /* _SDL_ps3spe_h */
+
+/* vi: set ts=4 sw=4 expandtab: */

src/video/ps3/SDL_ps3video.c

+/*
+    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 PS3 video driver implementation based on dummy video driver
+ *
+ * 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_mouse.h"
+#include "../SDL_sysvideo.h"
+#include "../SDL_pixels_c.h"
+#include "../../events/SDL_events_c.h"
+
+#include "SDL_ps3video.h"
+#include "SDL_ps3spe_c.h"
+#include "SDL_ps3events_c.h"
+#include "SDL_ps3render_c.h"
+#include "SDL_ps3modes_c.h"
+
+#include <fcntl.h>
+#include <linux/fb.h>
+#include <asm/ps3fb.h>
+#include <sys/mman.h>
+
+#define PS3VID_DRIVER_NAME "ps3"
+
+/* Initialization/Query functions */
+static int PS3_VideoInit(_THIS);
+static void PS3_VideoQuit(_THIS);
+
+/* Stores the SPE executable name of fb_writer_spu */
+extern spe_program_handle_t fb_writer_spu;
+
+/* PS3 driver bootstrap functions */
+
+static int
+PS3_Available(void)
+{
+    deprintf(1, "+PS3_Available()\n");
+    const char *envr = SDL_getenv("SDL_VIDEODRIVER");
+    if ((envr) && (SDL_strcmp(envr, PS3VID_DRIVER_NAME) == 0)) {
+        return (1);
+    }
+
+    deprintf(1, "-PS3_Available()\n");
+    return (0);
+}
+
+static void
+PS3_DeleteDevice(SDL_VideoDevice * device)
+{
+    deprintf(1, "+PS3_DeleteDevice()\n");
+    SDL_free(device->driverdata);
+    SDL_free(device);
+    deprintf(1, "-PS3_DeleteDevice()\n");
+}
+
+static SDL_VideoDevice *
+PS3_CreateDevice(int devindex)
+{
+    deprintf(1, "+PS3_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 = PS3_VideoInit;
+    device->VideoQuit = PS3_VideoQuit;
+    device->SetDisplayMode = PS3_SetDisplayMode;
+    device->GetDisplayModes = PS3_GetDisplayModes;
+    device->PumpEvents = PS3_PumpEvents;
+
+    device->free = PS3_DeleteDevice;
+
+    deprintf(1, "-PS3_CreateDevice()\n");
+    return device;
+}
+
+VideoBootStrap PS3_bootstrap = {
+    PS3VID_DRIVER_NAME, "SDL PS3 Cell video driver",
+    PS3_Available, PS3_CreateDevice
+};
+
+
+int
+PS3_VideoInit(_THIS)
+{
+    deprintf(1, "PS3_VideoInit()\n");
+
+    SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
+    SDL_DisplayMode mode;
+
+    /* Create SPU fb_parms and thread structure */
+    data->fb_parms = (struct fb_writer_parms_t *)
+        memalign(16, sizeof(struct fb_writer_parms_t));
+    data->fb_thread_data = (spu_data_t *) malloc(sizeof(spu_data_t));
+    if (data->fb_parms == NULL || data->fb_thread_data == NULL) {
+        SDL_OutOfMemory();
+        return -1;
+    }
+    data->fb_thread_data->program = fb_writer_spu;
+    data->fb_thread_data->program_name = "fb_writer_spu";
+    data->fb_thread_data->argp = (void *)data->fb_parms;
+    data->fb_thread_data->keepalive = 1;
+    data->fb_thread_data->booted = 0;
+
+    SPE_Start(data->fb_thread_data);
+
+    /* Open the device */
+    data->fbdev = open(PS3DEV, O_RDWR);
+    if (data->fbdev < 0) {
+        SDL_SetError("[PS3] Unable to open device %s", PS3DEV);
+        return -1;
+    }
+
+    /* Take control of frame buffer from kernel, for details see
+     * http://felter.org/wesley/files/ps3/linux-20061110-docs/ApplicationProgrammingEnvironment.html
+     * kernel will no longer flip the screen itself
+     */
+    ioctl(data->fbdev, PS3FB_IOCTL_ON, 0);
+
+    /* Unblank screen */
+    ioctl(data->fbdev, FBIOBLANK, 0);
+
+    struct fb_fix_screeninfo fb_finfo;
+    if (ioctl(data->fbdev, FBIOGET_FSCREENINFO, &fb_finfo)) {
+        SDL_SetError("[PS3] Can't get fixed screeninfo");
+        return (0);
+    }
+
+    /* Note: on PS3, fb_finfo.smem_len is enough for double buffering */
+    if ((data->frame_buffer = (uint8_t *)mmap(0, fb_finfo.smem_len,
+        PROT_READ | PROT_WRITE, MAP_SHARED,
+        data->fbdev, 0)) == (uint8_t *) - 1) {
+        SDL_SetError("[PS3] Can't mmap for %s", PS3DEV);
+        return (0);
+    } else {
+        /* Enable double buffering */
+    }
+
+    /* Blank screen */
+    memset(data->frame_buffer, 0x00, fb_finfo.smem_len);
+
+    PS3_InitModes(_this);
+    SDL_AddRenderDriver(0, &SDL_PS3_RenderDriver);
+
+    /* We're done! */
+    return 0;
+}
+
+void
+PS3_VideoQuit(_THIS)
+{
+    deprintf(1, "PS3_VideoQuit()\n");
+    SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
+
+    PS3_QuitModes(_this);
+
+    /* Unmap framebuffer */
+    if (data->frame_buffer) {
+        struct fb_fix_screeninfo fb_finfo;
+        if (ioctl(data->fbdev, FBIOGET_FSCREENINFO, &fb_finfo) != -1) {
+            munmap(data->frame_buffer, fb_finfo.smem_len);
+            data->frame_buffer = 0;
+        }
+    }
+
+    /* Shutdown SPE and related resources */
+    if (data->fb_parms)
+        free((void *)data->fb_parms);
+    if (data->fb_thread_data) {
+        SPE_Shutdown(data->fb_thread_data);
+        free((void *)data->fb_thread_data);
+    }
+
+    /* Close device */
+    if (data->fbdev) {
+        /* Give control of frame buffer back to kernel */
+        ioctl(data->fbdev, PS3FB_IOCTL_OFF, 0);
+        close(data->fbdev);
+        data->fbdev = -1;
+    }
+}
+
+/* vi: set ts=4 sw=4 expandtab: */

src/video/ps3/SDL_ps3video.h

+/*
+    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"
+
+#ifndef _SDL_ps3video_h
+#define _SDL_ps3video_h
+
+#include "../SDL_sysvideo.h"
+#include "SDL_ps3spe_c.h"
+
+#include <linux/fb.h>
+#include <asm/ps3fb.h>
+
+/* Debugging
+ * 0: No debug messages
+ * 1: Video debug messages
+ * 2: SPE debug messages
+ * 3: Memory adresses
+ */
+#define DEBUG_LEVEL 0
+
+#ifdef DEBUG_LEVEL
+#define deprintf( level, fmt, args... ) \
+    do \
+{ \
+    if ( (unsigned)(level) <= DEBUG_LEVEL ) \
+    { \
+        fprintf( stdout, fmt, ##args ); \
+        fflush( stdout ); \
+    } \
+} while ( 0 )
+#else
+#define deprintf( level, fmt, args... )
+#endif
+
+/* Default framebuffer device on PS3 */
+#define PS3DEV "/dev/fb0"
+
+/* Private display data */
+typedef struct SDL_VideoData
+{
+    /* Framebuffer device descriptor */
+    int fbdev;
+    /* mmap'd access to fbdev */
+    uint8_t * frame_buffer;
+    /* SPE threading stuff of the framebuffer */
+    spu_data_t * fb_thread_data;
+    /* Framebuffer transfer data */
+    volatile struct fb_writer_parms_t * fb_parms __attribute__((aligned(128)));
+} SDL_VideoData;
+
+typedef struct SDL_DisplayModeData
+{
+    unsigned long mode;
+    //struct ps3fb_ioctl_res res;
+} PS3_DisplayModeData;
+
+#endif /* _SDL_ps3video_h */
+
+/* vi: set ts=4 sw=4 expandtab: */

src/video/ps3/spulibs/Makefile

+# This Makefile is for building the CELL BE SPU libs
+# libfb_writer_spu.so, libyuv2rgb_spu.so, libbilin_scaler_spu.so
+
+# Toolchain
+PPU_LD=/usr/bin/ld
+SPU_SRCDIR=$(srcdir)/src/video/ps3/spulibs
+SPU_LIBDIR=$(srcdir)/src/video/ps3/spulibs/libs
+SPU_CFLAGS=-g -W -Wall -Winline -Wno-main -I. -I /usr/spu/include -I /opt/cell/sdk/usr/spu/include -finline-limit=10000 -Winline -ftree-vectorize -funroll-loops -fmodulo-sched -ffast-math -fPIC -O2
+
+DEPS = $(SPU_SRCDIR)/spu_common.h
+LIBS= fb_writer yuv2rgb bilin_scaler
+
+OBJLIBS = $(foreach lib,$(LIBS),lib$(lib)_spu.a)
+SHALIBS = $(foreach lib,$(LIBS),lib$(lib)_spu.so)
+
+
+ps3libs: $(foreach lib,$(OBJLIBS),$(SPU_LIBDIR)/$(lib)) $(foreach lib,$(SHALIBS),$(SPU_LIBDIR)/$(lib))
+
+
+$(SPU_LIBDIR)/lib%_spu.a: $(SPU_LIBDIR)/%-embed.o
+	$(AR) -qcs $@ $<
+
+$(SPU_LIBDIR)/lib%_spu.so: $(SPU_LIBDIR)/%-embed.o
+	$(PPU_LD) -o $@ -shared -soname=$(notdir $@) $<
+
+$(SPU_LIBDIR)/%-embed.o: $(SPU_LIBDIR)/%.o
+	$(EMBEDSPU) -m32 $(subst -embed.o,,$(notdir $@))_spu $< $@
+
+$(SPU_LIBDIR)/%.o: $(SPU_SRCDIR)/%.c $(DEPS)
+	$(SPU_GCC) $(SPU_CFLAGS) -o $@ $< -lm
+
+
+ps3libs-install: $(foreach obj,$(OBJLIBS),$(SPU_LIBDIR)/$(obj)) $(foreach obj,$(SHALIBS),$(SPU_LIBDIR)/$(obj))
+	for file in $(OBJLIBS); do \
+		$(INSTALL) -c -m 0655 $(SPU_LIBDIR)/$$file $(DESTDIR)$(libdir)/$$file; \
+	done
+	for file in $(SHALIBS); do \
+		$(INSTALL) -c -m 0755 $(SPU_LIBDIR)/$$file $(DESTDIR)$(libdir)/$$file; \
+	done
+
+ps3libs-uninstall:
+	for file in $(OBJLIBS) $(SHALIBS); do \
+		rm -f $(DESTDIR)$(libdir)/$$file; \
+	done
+
+ps3libs-clean:
+	rm -f $(SPU_LIBDIR)/*

src/video/ps3/spulibs/fb_writer.c

+/*
+ * SDL - Simple DirectMedia Layer
+ * CELL BE Support for PS3 Framebuffer
+ * Copyright (C) 2008, 2009 International Business Machines Corporation
+ *
+ * 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
+ *
+ *  Martin Lowinski  <lowinski [at] de [dot] ibm [ibm] com>
+ *  Dirk Herrendoerfer <d.herrendoerfer [at] de [dot] ibm [dot] com>
+ *  SPE code based on research by:
+ *  Rene Becker
+ *  Thimo Emmerich
+ */
+
+#include "spu_common.h"
+
+#include <spu_intrinsics.h>
+#include <spu_mfcio.h>
+#include <stdio.h>
+#include <string.h>
+
+// Debugging
+//#define DEBUG
+
+#ifdef DEBUG
+#define deprintf(fmt, args... ) \
+	fprintf( stdout, fmt, ##args ); \
+	fflush( stdout );
+#else
+#define deprintf( fmt, args... )
+#endif
+
+void cpy_to_fb(unsigned int);
+
+/* fb_writer_spu parms */
+static volatile struct fb_writer_parms_t parms __attribute__ ((aligned(128)));
+
+/* Code running on SPU */
+int main(unsigned long long spe_id __attribute__ ((unused)), unsigned long long argp __attribute__ ((unused)))
+{
+	deprintf("[SPU] fb_writer_spu is up... (on SPE #%llu)\n", spe_id);
+	uint32_t ea_mfc, mbox;
+	// send ready message
+	spu_write_out_mbox(SPU_READY);
+
+	while (1) {
+		/* Check mailbox */
+		mbox = spu_read_in_mbox();
+		deprintf("[SPU] Message is %u\n", mbox);
+		switch (mbox) {
+			case SPU_EXIT:
+				deprintf("[SPU] fb_writer goes down...\n");
+				return 0;
+			case SPU_START:
+				break;
+			default:
+				deprintf("[SPU] Cannot handle message\n");
+				continue;
+		}
+
+		/* Tag Manager setup */
+		unsigned int tags;
+		tags = mfc_multi_tag_reserve(5);
+		if (tags == MFC_TAG_INVALID) {
+			deprintf("[SPU] Failed to reserve mfc tags on fb_writer\n");
+			return 0;
+		}
+
+		/* Framebuffer parms */
+		ea_mfc = spu_read_in_mbox();
+		deprintf("[SPU] Message on fb_writer is %u\n", ea_mfc);
+		spu_mfcdma32(&parms, (unsigned int)ea_mfc,
+				sizeof(struct fb_writer_parms_t), tags,
+				MFC_GET_CMD);
+		deprintf("[SPU] argp = %u\n", (unsigned int)argp);
+		DMA_WAIT_TAG(tags);
+
+		/* Copy parms->data to framebuffer */
+		deprintf("[SPU] Copying to framebuffer started\n");
+		cpy_to_fb(tags);
+		deprintf("[SPU] Copying to framebuffer done!\n");
+
+		mfc_multi_tag_release(tags, 5);
+		deprintf("[SPU] fb_writer_spu... done!\n");
+		/* Send FIN msg */
+		spu_write_out_mbox(SPU_FIN);
+	}
+
+	return 0;
+}
+
+void cpy_to_fb(unsigned int tag_id_base)
+{
+	unsigned int i;
+	unsigned char current_buf;
+	uint8_t *in = parms.data;
+
+	/* Align fb pointer which was centered before */
+	uint8_t *fb =
+	    (unsigned char *)((unsigned int)parms.center & 0xFFFFFFF0);
+
+	uint32_t bounded_input_height = parms.bounded_input_height;
+	uint32_t bounded_input_width = parms.bounded_input_width;
+	uint32_t fb_pixel_size = parms.fb_pixel_size;
+
+	uint32_t out_line_stride = parms.out_line_stride;
+	uint32_t in_line_stride = parms.in_line_stride;
+	uint32_t in_line_size = bounded_input_width * fb_pixel_size;
+
+	current_buf = 0;
+
+	/* Local store buffer */
+	static volatile uint8_t buf[4][BUFFER_SIZE]
+	    __attribute__ ((aligned(128)));
+	/* do 4-times multibuffering using DMA list, process in two steps */
+	for (i = 0; i < bounded_input_height >> 2; i++) {
+		/* first buffer */
+		DMA_WAIT_TAG(tag_id_base + 1);
+		// retrieve buffer
+		spu_mfcdma32(buf[0], (unsigned int)in, in_line_size,
+			     tag_id_base + 1, MFC_GETB_CMD);
+		DMA_WAIT_TAG(tag_id_base + 1);
+		// store buffer
+		spu_mfcdma32(buf[0], (unsigned int)fb, in_line_size,
+			     tag_id_base + 1, MFC_PUTB_CMD);
+		in += in_line_stride;
+		fb += out_line_stride;
+		deprintf("[SPU] 1st buffer copied in=0x%x, fb=0x%x\n", in,
+		       fb);
+
+		/* second buffer */
+		DMA_WAIT_TAG(tag_id_base + 2);
+		// retrieve buffer
+		spu_mfcdma32(buf[1], (unsigned int)in, in_line_size,
+			     tag_id_base + 2, MFC_GETB_CMD);
+		DMA_WAIT_TAG(tag_id_base + 2);
+		// store buffer
+		spu_mfcdma32(buf[1], (unsigned int)fb, in_line_size,
+			     tag_id_base + 2, MFC_PUTB_CMD);
+		in += in_line_stride;
+		fb += out_line_stride;
+		deprintf("[SPU] 2nd buffer copied in=0x%x, fb=0x%x\n", in,
+		       fb);
+
+		/* third buffer */
+		DMA_WAIT_TAG(tag_id_base + 3);
+		// retrieve buffer
+		spu_mfcdma32(buf[2], (unsigned int)in, in_line_size,
+			     tag_id_base + 3, MFC_GETB_CMD);
+		DMA_WAIT_TAG(tag_id_base + 3);
+		// store buffer
+		spu_mfcdma32(buf[2], (unsigned int)fb, in_line_size,
+			     tag_id_base + 3, MFC_PUTB_CMD);
+		in += in_line_stride;
+		fb += out_line_stride;
+		deprintf("[SPU] 3rd buffer copied in=0x%x, fb=0x%x\n", in,
+		       fb);
+
+		/* fourth buffer */
+		DMA_WAIT_TAG(tag_id_base + 4);
+		// retrieve buffer
+		spu_mfcdma32(buf[3], (unsigned int)in, in_line_size,
+			     tag_id_base + 4, MFC_GETB_CMD);
+		DMA_WAIT_TAG(tag_id_base + 4);
+		// store buffer
+		spu_mfcdma32(buf[3], (unsigned int)fb, in_line_size,
+			     tag_id_base + 4, MFC_PUTB_CMD);
+		in += in_line_stride;
+		fb += out_line_stride;
+		deprintf("[SPU] 4th buffer copied in=0x%x, fb=0x%x\n", in,
+		       fb);
+		deprintf("[SPU] Loop #%i, bounded_input_height=%i\n", i,
+		       bounded_input_height >> 2);
+	}
+	DMA_WAIT_TAG(tag_id_base + 2);
+	DMA_WAIT_TAG(tag_id_base + 3);
+	DMA_WAIT_TAG(tag_id_base + 4);
+}
+
+

src/video/ps3/spulibs/spu_common.h

+/*
+ * SDL - Simple DirectMedia Layer
+ * CELL BE Support for PS3 Framebuffer
+ * Copyright (C) 2008, 2009 International Business Machines Corporation
+ *
+ * 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
+ *
+ *  Martin Lowinski  <lowinski [at] de [dot] ibm [ibm] com>
+ *  Dirk Herrendoerfer <d.herrendoerfer [at] de [dot] ibm [dot] com>
+ *  SPE code based on research by:
+ *  Rene Becker
+ *  Thimo Emmerich
+ */
+
+/* Common definitions/makros for SPUs */
+
+#ifndef _SPU_COMMON_H
+#define _SPU_COMMON_H
+
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+
+/* Tag management */
+#define DMA_WAIT_TAG(_tag)     \
+    mfc_write_tag_mask(1<<(_tag)); \
+    mfc_read_tag_status_all();
+
+/* SPU mailbox messages */
+#define SPU_READY	0
+#define SPU_START	1
+#define SPU_FIN		2
+#define SPU_EXIT	3
+
+/* Tags */
+#define RETR_BUF	0
+#define STR_BUF		1
+#define TAG_INIT	2
+
+/* Buffersizes */
+#define MAX_HDTV_WIDTH 1920
+#define MAX_HDTV_HEIGHT 1080
+/* One stride of HDTV */
+#define BUFFER_SIZE 7680
+
+/* fb_writer ppu/spu exchange parms */
+struct fb_writer_parms_t {
+	uint8_t *data;
+	uint8_t *center;
+	uint32_t out_line_stride;
+	uint32_t in_line_stride;
+	uint32_t bounded_input_height;
+	uint32_t bounded_input_width;
+	uint32_t fb_pixel_size;
+
+	/* This padding is to fulfill the need for 16 byte alignment. On parm change, update! */
+	char padding[4];
+} __attribute__((aligned(128)));
+
+/* yuv2rgb ppu/spu exchange parms */
+struct yuv2rgb_parms_t {
+	uint8_t* y_plane;
+	uint8_t* v_plane;
+	uint8_t* u_plane;
+
+	uint8_t* dstBuffer;
+
+	unsigned int src_pixel_width;
+	unsigned int src_pixel_height;
+
+	/* This padding is to fulfill the need for 16 byte alignment. On parm change, update! */
+	char padding[128 - ((4 * sizeof(uint8_t *) + 2 * sizeof(unsigned int)) & 0x7F)];
+} __attribute__((aligned(128)));
+
+/* bilin_scaler ppu/spu exchange parms */
+struct scale_parms_t {
+	uint8_t* y_plane;
+	uint8_t* v_plane;
+	uint8_t* u_plane;
+
+	uint8_t* dstBuffer;
+
+	unsigned int src_pixel_width;
+	unsigned int src_pixel_height;
+
+	unsigned int dst_pixel_width;
+	unsigned int dst_pixel_height;
+
+	/* This padding is to fulfill the need for 16 byte alignment. On parm change, update! */
+	char padding[128 - ((4 * sizeof(uint8_t *) + 4 * sizeof(unsigned int)) & 0x7F)];
+} __attribute__((aligned(128)));
+
+#endif /* _SPU_COMMON_H */
+
+