diff options
Diffstat (limited to 'distrib/sdl-1.2.15/src/video/ps3/spulibs/fb_writer.c')
| -rw-r--r-- | distrib/sdl-1.2.15/src/video/ps3/spulibs/fb_writer.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/video/ps3/spulibs/fb_writer.c b/distrib/sdl-1.2.15/src/video/ps3/spulibs/fb_writer.c new file mode 100644 index 0000000..0eb51cc --- /dev/null +++ b/distrib/sdl-1.2.15/src/video/ps3/spulibs/fb_writer.c @@ -0,0 +1,193 @@ +/* + * 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); +} + + |