Mercurial > sdl-ios-xcode
diff src/video/ps3/spulibs/spu_common.h @ 4165:3b8ac3d311a2 SDL-1.2
Hello.
This patch provides basic support for video on the Sony PS3
Linux framebuffer. Scaling, format-conversion, and drawing is
done from the SPEs, so there is little performance impact to
PPE applications. This is by no means production quality code,
but it is a very good start and a good example of how to use the
PS3's hardware capabilities to accelerate video playback on
the box.
The driver has been verified to work with ffplay, mplayer and xine.
This piece of software has been developed at the IBM R&D Lab
in Boeblingen, Germany and is now returned to the community.
Enjoy !
Signed-off-by: D.Herrendoerfer < d.herrendoerfer [at] de [dot] ibm [dot] com >
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 02 Apr 2009 04:06:55 +0000 |
| parents | |
| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/video/ps3/spulibs/spu_common.h Thu Apr 02 04:06:55 2009 +0000 @@ -0,0 +1,108 @@ +/* + * 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 */ + +