add bcm accel

4 files changed, 129 insertions, 9 deletions

diff --git a/lib/gdi/Makefile.am b/lib/gdi/Makefile.am
index e5430fab..1280556e 100644
--- a/lib/gdi/Makefile.am
+++ b/lib/gdi/Makefile.am
@@ -6,7 +6,7 @@ noinst_LIBRARIES = libenigma_gdi.a
 libenigma_gdi_a_SOURCES = \
 	region.cpp grc.cpp epng.cpp erect.cpp fb.cpp font.cpp font_arabic.cpp gfbdc.cpp  \
 	glcddc.cpp gpixmap.cpp lcd.cpp gfont.cpp accel.cpp picload.cpp picexif.cpp \
-	compositing.cpp
+	compositing.cpp bcm.cpp
 
 if WITH_SDL
 libenigma_gdi_a_SOURCES += sdl.cpp
diff --git a/lib/gdi/accel.cpp b/lib/gdi/accel.cpp
index f1ffe193..bf9a5a44 100644
--- a/lib/gdi/accel.cpp
+++ b/lib/gdi/accel.cpp
@@ -9,7 +9,7 @@
 #include <lib/gdi/gpixmap.h>
 
 gAccel *gAccel::instance;
-// #define BCM_ACCEL
+#define BCM_ACCEL
 
 #ifdef ATI_ACCEL
 extern int ati_accel_init(void);
@@ -50,7 +50,7 @@ gAccel::gAccel()
 	ati_accel_init();
 #endif
 #ifdef BCM_ACCEL	
-	bcm_accel_init();
+	m_bcm_accel_state = bcm_accel_init();
 #endif
 }
 
@@ -95,12 +95,15 @@ int gAccel::blit(gSurface *dst, const gSurface *src, const eRect &p, const eRect
 	return 0;
 #endif
 #ifdef BCM_ACCEL
-	bcm_accel_blit(
-		src->data_phys, src->x, src->y, src->stride,
-		dst->data_phys, dst->x, dst->y, dst->stride, 
-		area.left(), area.top(), area.width(), area.height(),
-		p.x(), p.y(), p.width(), p.height());
-	return 0;
+	if (!m_bcm_accel_state)
+	{
+		bcm_accel_blit(
+			src->data_phys, src->x, src->y, src->stride,
+			dst->data_phys, dst->x, dst->y, dst->stride, 
+			area.left(), area.top(), area.width(), area.height(),
+			p.x(), p.y(), p.width(), p.height());
+		return 0;
+	}
 #endif
 	return -1;
 }
diff --git a/lib/gdi/accel.h b/lib/gdi/accel.h
index b08ba661..bbb2e26a 100644
--- a/lib/gdi/accel.h
+++ b/lib/gdi/accel.h
@@ -24,6 +24,7 @@ private:
 	int m_accel_phys_addr;
 	int m_accel_size; // in blocks
 	int *m_accel_allocation;
+	int m_bcm_accel_state;
 	
 	static gAccel *instance;
 };
diff --git a/lib/gdi/bcm.cpp b/lib/gdi/bcm.cpp
new file mode 100644
index 00000000..bd820913
--- /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");
+}
+