g3dvl: Implement XvMC using pipe_video_context.

2 files changed, 381 insertions, 0 deletions

diff --git a/src/gallium/winsys/g3dvl/xlib/Makefile b/src/gallium/winsys/g3dvl/xlib/Makefile
new file mode 100644
index 00000000000..d4cbf0e2bba
--- /dev/null
+++ b/src/gallium/winsys/g3dvl/xlib/Makefile
@@ -0,0 +1,74 @@
+# This makefile produces a "stand-alone" libXvMCg3dvl.so which is
+# based on Xlib (no DRI HW acceleration)
+
+TOP = ../../../../..
+include $(TOP)/configs/current
+
+XVMC_MAJOR = 1
+XVMC_MINOR = 0
+XVMC_LIB = XvMCg3dvl
+XVMC_LIB_NAME = lib$(XVMC_LIB).so
+XVMC_LIB_DEPS = $(EXTRA_LIB_PATH) -lXvMC -lXv -lX11 -lm
+
+INCLUDES = -I$(TOP)/src/gallium/include \
+           -I$(TOP)/src/gallium/auxiliary \
+           -I$(TOP)/src/gallium/drivers \
+           -I$(TOP)/src/gallium/winsys/g3dvl
+
+DEFINES += -DGALLIUM_SOFTPIPE \
+	   -DGALLIUM_TRACE
+
+SOURCES = xsp_winsys.c
+
+# XXX: Hack, if we include libXvMCapi.a in LIBS none of the symbols are
+# pulled in by the linker because xsp_winsys.c doesn't refer to them
+OBJECTS = $(SOURCES:.c=.o) $(TOP)/src/xvmc/*.o
+
+LIBS = $(TOP)/src/gallium/drivers/softpipe/libsoftpipe.a \
+       $(TOP)/src/gallium/auxiliary/vl/libvl.a \
+       $(TOP)/src/gallium/auxiliary/tgsi/libtgsi.a \
+       $(TOP)/src/gallium/auxiliary/draw/libdraw.a \
+       $(TOP)/src/gallium/auxiliary/translate/libtranslate.a \
+       $(TOP)/src/gallium/auxiliary/cso_cache/libcso_cache.a \
+       $(TOP)/src/gallium/auxiliary/rtasm/librtasm.a \
+       $(TOP)/src/gallium/auxiliary/util/libutil.a
+
+.c.o:
+	$(CC) -c $(INCLUDES) $(DEFINES) $(CFLAGS) $< -o $@
+
+.S.o:
+	$(CC) -c $(INCLUDES) $(DEFINES) $(CFLAGS) $< -o $@
+
+.PHONY: default $(TOP)/$(LIB_DIR)/gallium clean
+
+default: depend $(TOP)/$(LIB_DIR)/gallium $(TOP)/$(LIB_DIR)/gallium/$(XVMC_LIB_NAME)
+
+$(TOP)/$(LIB_DIR)/gallium:
+	@mkdir -p $(TOP)/$(LIB_DIR)/gallium
+
+# Make the libXvMCg3dvl.so library
+$(TOP)/$(LIB_DIR)/gallium/$(XVMC_LIB_NAME): $(OBJECTS) $(LIBS) Makefile
+	$(MKLIB) -o $(XVMC_LIB) -linker '$(CC)' -ldflags '$(LDFLAGS)' \
+		-major $(XVMC_MAJOR) -minor $(XVMC_MINOR) $(MKLIB_OPTIONS) \
+		-install $(TOP)/$(LIB_DIR)/gallium -id $(INSTALL_LIB_DIR)/lib$(XVMC_LIB).1.dylib \
+		$(XVMC_LIB_DEPS) $(OBJECTS) $(LIBS)
+
+depend: $(SOURCES) Makefile
+	$(RM) depend
+	touch depend
+	$(MKDEP) $(MKDEP_OPTIONS) $(DEFINES) $(INCLUDES) $(SOURCES)
+
+#install: default
+#	$(INSTALL) -d $(INSTALL_DIR)/include/GL
+#	$(INSTALL) -d $(INSTALL_DIR)/$(LIB_DIR)
+#	$(INSTALL) -m 644 $(TOP)/include/GL/*.h $(INSTALL_DIR)/include/GL
+#	@if [ -e $(TOP)/$(LIB_DIR)/$(GL_LIB_NAME) ]; then \
+#		$(INSTALL) $(TOP)/$(LIB_DIR)/libGL* $(INSTALL_DIR)/$(LIB_DIR); \
+#	fi
+
+clean: Makefile
+	$(RM) $(TOP)/$(LIB_DIR)/gallium/$(XVMC_LIB_NAME)
+	$(RM) *.o *~
+	$(RM) depend depend.bak
+
+-include depend
diff --git a/src/gallium/winsys/g3dvl/xlib/xsp_winsys.c b/src/gallium/winsys/g3dvl/xlib/xsp_winsys.c
new file mode 100644
index 00000000000..37eee79c5d3
--- /dev/null
+++ b/src/gallium/winsys/g3dvl/xlib/xsp_winsys.c
@@ -0,0 +1,307 @@
+#include <vl_winsys.h>
+#include <X11/Xutil.h>
+#include <pipe/internal/p_winsys_screen.h>
+#include <pipe/p_state.h>
+#include <pipe/p_inlines.h>
+#include <util/u_memory.h>
+#include <util/u_math.h>
+#include <softpipe/sp_winsys.h>
+#include <softpipe/sp_video_context.h>
+#include <softpipe/sp_texture.h>
+
+/* pipe_winsys implementation */
+
+struct xsp_pipe_winsys
+{
+	struct pipe_winsys	base;
+	Display			*display;
+	int			screen;
+	XImage			*fbimage;
+};
+
+struct xsp_context
+{
+	Drawable		drawable;
+
+	void (*pipe_destroy)(struct pipe_video_context *vpipe);
+};
+
+struct xsp_buffer
+{
+	struct pipe_buffer	base;
+	boolean			is_user_buffer;
+	void			*data;
+	void			*mapped_data;
+};
+
+static struct pipe_buffer* xsp_buffer_create(struct pipe_winsys *pws, unsigned alignment, unsigned usage, unsigned size)
+{
+	struct xsp_buffer *buffer;
+
+	assert(pws);
+
+	buffer = calloc(1, sizeof(struct xsp_buffer));
+	pipe_reference_init(&buffer->base.reference, 1);
+	buffer->base.alignment = alignment;
+	buffer->base.usage = usage;
+	buffer->base.size = size;
+	buffer->data = align_malloc(size, alignment);
+
+	return (struct pipe_buffer*)buffer;
+}
+
+static struct pipe_buffer* xsp_user_buffer_create(struct pipe_winsys *pws, void *data, unsigned size)
+{
+	struct xsp_buffer *buffer;
+
+	assert(pws);
+
+	buffer = calloc(1, sizeof(struct xsp_buffer));
+	pipe_reference_init(&buffer->base.reference, 1);
+	buffer->base.size = size;
+	buffer->is_user_buffer = TRUE;
+	buffer->data = data;
+
+	return (struct pipe_buffer*)buffer;
+}
+
+static void* xsp_buffer_map(struct pipe_winsys *pws, struct pipe_buffer *buffer, unsigned flags)
+{
+	struct xsp_buffer *xsp_buf = (struct xsp_buffer*)buffer;
+
+	assert(pws);
+	assert(buffer);
+
+	xsp_buf->mapped_data = xsp_buf->data;
+
+	return xsp_buf->mapped_data;
+}
+
+static void xsp_buffer_unmap(struct pipe_winsys *pws, struct pipe_buffer *buffer)
+{
+	struct xsp_buffer *xsp_buf = (struct xsp_buffer*)buffer;
+
+	assert(pws);
+	assert(buffer);
+
+	xsp_buf->mapped_data = NULL;
+}
+
+static void xsp_buffer_destroy(struct pipe_buffer *buffer)
+{
+	struct xsp_buffer *xsp_buf = (struct xsp_buffer*)buffer;
+
+	assert(buffer);
+
+	if (!xsp_buf->is_user_buffer)
+		align_free(xsp_buf->data);
+
+	free(xsp_buf);
+}
+
+static struct pipe_buffer* xsp_surface_buffer_create
+(
+	struct pipe_winsys *pws,
+	unsigned width,
+	unsigned height,
+	enum pipe_format format,
+	unsigned usage,
+	unsigned tex_usage,
+	unsigned *stride
+)
+{
+	const unsigned int ALIGNMENT = 1;
+	struct pipe_format_block block;
+	unsigned nblocksx, nblocksy;
+
+	pf_get_block(format, &block);
+	nblocksx = pf_get_nblocksx(&block, width);
+	nblocksy = pf_get_nblocksy(&block, height);
+	*stride = align(nblocksx * block.size, ALIGNMENT);
+
+	return pws->buffer_create(pws, ALIGNMENT,
+				  usage,
+				  *stride * nblocksy);
+}
+
+static void xsp_fence_reference(struct pipe_winsys *pws, struct pipe_fence_handle **ptr, struct pipe_fence_handle *fence)
+{
+	assert(pws);
+	assert(ptr);
+	assert(fence);
+}
+
+static int xsp_fence_signalled(struct pipe_winsys *pws, struct pipe_fence_handle *fence, unsigned flag)
+{
+	assert(pws);
+	assert(fence);
+
+	return 0;
+}
+
+static int xsp_fence_finish(struct pipe_winsys *pws, struct pipe_fence_handle *fence, unsigned flag)
+{
+	assert(pws);
+	assert(fence);
+
+	return 0;
+}
+
+static void xsp_flush_frontbuffer(struct pipe_winsys *pws, struct pipe_surface *surface, void *context_private)
+{
+	struct xsp_pipe_winsys	*xsp_winsys;
+	struct xsp_context	*xsp_context;
+
+	assert(pws);
+	assert(surface);
+	assert(context_private);
+
+	xsp_winsys = (struct xsp_pipe_winsys*)pws;
+	xsp_context = (struct xsp_context*)context_private;
+	xsp_winsys->fbimage->width = surface->width;
+	xsp_winsys->fbimage->height = surface->height;
+	xsp_winsys->fbimage->bytes_per_line = surface->width * (xsp_winsys->fbimage->bits_per_pixel >> 3);
+	xsp_winsys->fbimage->data = (char*)((struct xsp_buffer *)softpipe_texture(surface->texture)->buffer)->data + surface->offset;
+
+	XPutImage
+	(
+		xsp_winsys->display, xsp_context->drawable,
+		XDefaultGC(xsp_winsys->display, xsp_winsys->screen),
+		xsp_winsys->fbimage, 0, 0, 0, 0,
+		surface->width, surface->height
+	);
+	XFlush(xsp_winsys->display);
+}
+
+static const char* xsp_get_name(struct pipe_winsys *pws)
+{
+	assert(pws);
+	return "X11 SoftPipe";
+}
+
+static void xsp_destroy(struct pipe_winsys *pws)
+{
+	struct xsp_pipe_winsys *xsp_winsys = (struct xsp_pipe_winsys*)pws;
+
+	assert(pws);
+
+	/* XDestroyImage() wants to free the data as well */
+	xsp_winsys->fbimage->data = NULL;
+
+	XDestroyImage(xsp_winsys->fbimage);
+	FREE(xsp_winsys);
+}
+
+/* Called through pipe_video_context::destroy() */
+static void xsp_pipe_destroy(struct pipe_video_context *vpipe)
+{
+	struct xsp_context *xsp_context;
+
+	assert(vpipe);
+
+	xsp_context = vpipe->priv;
+
+	/* Call the original destroy */
+	xsp_context->pipe_destroy(vpipe);
+
+	FREE(xsp_context);
+}
+
+/* Show starts here */
+
+Drawable
+vl_video_bind_drawable(struct pipe_video_context *vpipe, Drawable drawable)
+{
+	struct xsp_context *xsp_context;
+	Drawable old_drawable;
+
+	assert(vpipe);
+
+	xsp_context = vpipe->priv;
+	old_drawable = xsp_context->drawable;
+	xsp_context->drawable = drawable;
+
+	return old_drawable;
+}
+
+struct pipe_screen*
+vl_screen_create(Display *display, int screen)
+{
+	struct xsp_pipe_winsys *xsp_winsys;
+
+	assert(display);
+
+	xsp_winsys = CALLOC_STRUCT(xsp_pipe_winsys);
+	if (!xsp_winsys)
+		return NULL;
+
+	xsp_winsys->base.buffer_create = xsp_buffer_create;
+	xsp_winsys->base.user_buffer_create = xsp_user_buffer_create;
+	xsp_winsys->base.buffer_map = xsp_buffer_map;
+	xsp_winsys->base.buffer_unmap = xsp_buffer_unmap;
+	xsp_winsys->base.buffer_destroy = xsp_buffer_destroy;
+	xsp_winsys->base.surface_buffer_create = xsp_surface_buffer_create;
+	xsp_winsys->base.fence_reference = xsp_fence_reference;
+	xsp_winsys->base.fence_signalled = xsp_fence_signalled;
+	xsp_winsys->base.fence_finish = xsp_fence_finish;
+	xsp_winsys->base.flush_frontbuffer = xsp_flush_frontbuffer;
+	xsp_winsys->base.get_name = xsp_get_name;
+	xsp_winsys->base.destroy = xsp_destroy;
+	xsp_winsys->display = display;
+	xsp_winsys->screen = screen;
+	xsp_winsys->fbimage = XCreateImage
+	(
+		display,
+		XDefaultVisual(display, screen),
+		XDefaultDepth(display, screen),
+		ZPixmap,
+		0,
+		NULL,
+		0,	/* Don't know the width and height until flush_frontbuffer */
+		0,
+		32,
+		0
+	);
+
+	if (!xsp_winsys->fbimage)
+	{
+		FREE(xsp_winsys);
+		return NULL;
+	}
+
+	XInitImage(xsp_winsys->fbimage);
+
+	return softpipe_create_screen(&xsp_winsys->base);
+}
+
+struct pipe_video_context*
+vl_video_create(struct pipe_screen *screen,
+                enum pipe_video_profile profile,
+                enum pipe_video_chroma_format chroma_format,
+                unsigned width, unsigned height)
+{
+	struct pipe_video_context	*vpipe;
+	struct xsp_context		*xsp_context;
+
+	assert(screen);
+	assert(width && height);
+
+	vpipe = sp_video_create(screen, profile, chroma_format, width, height);
+	if (!vpipe)
+		return NULL;
+
+	xsp_context = CALLOC_STRUCT(xsp_context);
+	if (!xsp_context)
+	{
+		vpipe->destroy(vpipe);
+		return NULL;
+	}
+
+	/* Override this so we can free our xsp_context when the pipe is freed */
+	xsp_context->pipe_destroy = vpipe->destroy;
+	vpipe->destroy = xsp_pipe_destroy;
+
+	vpipe->priv = xsp_context;
+
+	return vpipe;
+}