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-rw-r--r--src/gallium/winsys/g3dvl/xsp_winsys.c256
-rw-r--r--src/gallium/winsys/g3dvl/xsp_winsys.h11
2 files changed, 267 insertions, 0 deletions
diff --git a/src/gallium/winsys/g3dvl/xsp_winsys.c b/src/gallium/winsys/g3dvl/xsp_winsys.c
new file mode 100644
index 0000000000..eb4c9085d6
--- /dev/null
+++ b/src/gallium/winsys/g3dvl/xsp_winsys.c
@@ -0,0 +1,256 @@
+#include "xsp_winsys.h"
+#include <X11/Xutil.h>
+#include <pipe/p_winsys.h>
+#include <pipe/p_state.h>
+#include <pipe/p_util.h>
+#include <pipe/p_inlines.h>
+#include <softpipe/sp_winsys.h>
+
+/* pipe_winsys implementation */
+
+struct xsp_pipe_winsys
+{
+ struct pipe_winsys base;
+ Display *display;
+ XImage fbimage;
+};
+
+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));
+ buffer->base.refcount = 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));
+ buffer->base.refcount = 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_winsys *pws, struct pipe_buffer *buffer)
+{
+ struct xsp_buffer *xsp_buf = (struct xsp_buffer*)buffer;
+
+ assert(pws);
+ assert(buffer);
+
+ if (!xsp_buf->is_user_buffer)
+ align_free(xsp_buf->data);
+
+ free(xsp_buf);
+}
+
+static struct pipe_surface* xsp_surface_alloc(struct pipe_winsys *pws)
+{
+ struct pipe_surface *surface;
+
+ assert(pws);
+
+ surface = calloc(1, sizeof(struct pipe_surface));
+ surface->refcount = 1;
+ surface->winsys = pws;
+
+ return surface;
+}
+
+static int xsp_surface_alloc_storage
+(
+ struct pipe_winsys *pws,
+ struct pipe_surface *surface,
+ unsigned width,
+ unsigned height,
+ enum pipe_format format,
+ unsigned flags,
+ unsigned tex_usage
+)
+{
+ const unsigned int ALIGNMENT = 1;
+
+ assert(pws);
+ assert(surface);
+
+ surface->width = width;
+ surface->height = height;
+ surface->format = format;
+ surface->cpp = pf_get_size(format);
+ surface->pitch = width;
+ surface->usage = flags;
+ surface->buffer = pws->buffer_create(pws, ALIGNMENT, PIPE_BUFFER_USAGE_PIXEL, surface->pitch * surface->cpp * height);
+
+ return 0;
+}
+
+static void xsp_surface_release(struct pipe_winsys *pws, struct pipe_surface **surface)
+{
+ struct pipe_surface *s;
+
+ assert(pws);
+ assert(surface);
+ assert(*surface);
+
+ s = *surface;
+
+ s->refcount--;
+
+ if (s->refcount == 0)
+ {
+ pipe_buffer_reference(pws, &s->buffer, NULL);
+ free(s);
+ }
+
+ *surface = NULL;
+}
+
+static void xsp_flush_frontbuffer(struct pipe_winsys *pws, struct pipe_surface *surface, void *context_private)
+{
+ struct xsp_pipe_winsys *xsp_winsys;
+
+ assert(pws);
+ assert(surface);
+ assert(context_private);
+
+ xsp_winsys = (struct xsp_pipe_winsys*)pws;
+
+ 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 = pipe_surface_map(surface, 0);
+
+ XPutImage
+ (
+ xsp_winsys->display,
+ *(Drawable*)context_private,
+ XDefaultGC(xsp_winsys->display, XDefaultScreen(xsp_winsys->display)),
+ &xsp_winsys->fbimage,
+ 0,
+ 0,
+ 0,
+ 0,
+ surface->width,
+ surface->height
+ );
+ XFlush(xsp_winsys->display);
+ pipe_surface_unmap(surface);
+}
+
+static const char* xsp_get_name(struct pipe_winsys *pws)
+{
+ assert(pws);
+ return "X11 SoftPipe";
+}
+
+/* softpipe_winsys implementation */
+
+static boolean xsp_is_format_supported(struct softpipe_winsys *spws, enum pipe_format format)
+{
+ assert(spws);
+
+ /* TODO: Test that 'format' is equal to our output window's format */
+ return TRUE;
+}
+
+/* Show starts here */
+
+struct pipe_context* create_pipe_context(Display *display)
+{
+ struct xsp_pipe_winsys *xsp_winsys;
+ struct softpipe_winsys *sp_winsys;
+ struct pipe_screen *p_screen;
+ struct pipe_context *p_context;
+
+ assert(display);
+
+ xsp_winsys = calloc(1, sizeof(struct xsp_pipe_winsys));
+ 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_alloc = xsp_surface_alloc;
+ xsp_winsys->base.surface_alloc_storage = xsp_surface_alloc_storage;
+ xsp_winsys->base.surface_release = xsp_surface_release;
+ xsp_winsys->base.flush_frontbuffer = xsp_flush_frontbuffer;
+ xsp_winsys->base.get_name = xsp_get_name;
+ xsp_winsys->display = display;
+
+ {
+ /* XXX: Can't use the returned XImage* directly,
+ since we don't have control over winsys destruction
+ and we wouldn't be able to free it */
+ XImage *template = XCreateImage
+ (
+ display,
+ XDefaultVisual(display, XDefaultScreen(display)),
+ XDefaultDepth(display, XDefaultScreen(display)),
+ ZPixmap,
+ 0,
+ NULL,
+ 0, /* Don't know the width and height until flush_frontbuffer */
+ 0,
+ 32,
+ 0
+ );
+
+ memcpy(&xsp_winsys->fbimage, template, sizeof(XImage));
+ XInitImage(&xsp_winsys->fbimage);
+
+ XDestroyImage(template);
+ }
+
+ sp_winsys = calloc(1, sizeof(struct softpipe_winsys));
+ sp_winsys->is_format_supported = xsp_is_format_supported;
+
+ p_screen = softpipe_create_screen((struct pipe_winsys*)xsp_winsys);
+ p_context = softpipe_create(p_screen, (struct pipe_winsys*)xsp_winsys, sp_winsys);
+
+ return p_context;
+}
+
diff --git a/src/gallium/winsys/g3dvl/xsp_winsys.h b/src/gallium/winsys/g3dvl/xsp_winsys.h
new file mode 100644
index 0000000000..47a6ac6e25
--- /dev/null
+++ b/src/gallium/winsys/g3dvl/xsp_winsys.h
@@ -0,0 +1,11 @@
+#ifndef xsp_winsys_h
+#define xsp_winsys_h
+
+#include <X11/Xlib.h>
+
+struct pipe_context;
+
+struct pipe_context* create_pipe_context(Display *display);
+
+#endif
+