add bcm accel

[vuplus_dvbapp] / lib / gdi / bcm.cpp

diff --git a/lib/gdi/bcm.cpp b/lib/gdi/bcm.cpp
new file mode 100644 (file)
index 0000000..bd82091
--- /dev/null
+++ b/lib/gdi/bcm.cpp
@@ -0,0 +1,116 @@
+/*
+  Interface to the Dreambox dm800/dm8000 proprietary accel interface.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <linux/fb.h>
+#include <sys/mman.h>
+#include <sys/ioctl.h>
+
+#define FBIO_ACCEL  0x23
+
+static unsigned int displaylist[1024];
+static int ptr;
+
+#define P(x, y) do { displaylist[ptr++] = x; displaylist[ptr++] = y; } while (0)
+#define C(x) P(x, 0)
+
+static int fb_fd;
+static int exec_list(void);
+
+int bcm_accel_init(void)
+{
+       fb_fd = open("/dev/fb/0", O_RDWR);
+       if (fb_fd < 0)
+       {
+               perror("/dev/fb/0");
+               return 1;
+       }
+       if (exec_list())
+       {
+               fprintf(stderr, "BCM accel interface not available - %m\n");
+               close(fb_fd);
+               return 1;
+       }
+       return 0;
+}
+
+void bcm_accel_close(void)
+{
+       close(fb_fd);
+}
+
+static int exec_list(void)
+{
+       int ret;
+       struct
+       {
+               void *ptr;
+               int len;
+       } l;
+
+       l.ptr = displaylist;
+       l.len = ptr;
+       ret = ioctl(fb_fd, FBIO_ACCEL, &l);
+       ptr = 0;
+       return ret;
+}
+
+void bcm_accel_blit(
+               int src_addr, int src_width, int src_height, int src_stride,
+               int dst_addr, int dst_width, int dst_height, int dst_stride,
+               int src_x, int src_y, int width, int height,
+               int dst_x, int dst_y, int dwidth, int dheight)
+{
+       C(0x43); // reset source
+       C(0x53); // reset dest
+       C(0x5b);  // reset pattern
+       C(0x67); // reset blend
+       C(0x75); // reset output
+
+       P(0x0, src_addr); // set source addr
+       P(0x1, src_stride);  // set source pitch
+       P(0x2, src_width); // source width
+       P(0x3, src_height); // height
+       P(0x4, 0x7e48888); // format: ARGB 8888
+
+       C(0x5); // set source surface (based on last parameters)
+
+       P(0x2e, src_x); // define  rect
+       P(0x2f, src_y);
+       P(0x30, width);
+       P(0x31, height);
+
+       C(0x32); // set this rect as source rect
+
+       P(0x0, dst_addr); // prepare output surface
+       P(0x1, dst_stride);
+       P(0x2, dst_width);
+       P(0x3, dst_height);
+       P(0x4, 0x7e48888);
+       
+       C(0x69); // set output surface
+       
+       P(0x2e, dst_x); // prepare output rect
+       P(0x2f, dst_y);
+       P(0x30, dwidth);
+       P(0x31, dheight);
+
+       C(0x6e); // set this rect as output rect
+
+       C(0x77);  // do it
+
+       exec_list();
+}
+
+void bcm_accel_fill(
+               int dst_addr, int dst_width, int dst_height, int dst_stride,
+               int x, int y, int width, int height,
+               unsigned long color)
+{
+//     printf("unimplemented bcm_accel_fill\n");
+}
+