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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.c193
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);
+}
+
+