winsys/xlib: sketch of cell support

1 files changed, 20 insertions, 248 deletions

diff --git a/src/gallium/winsys/xlib/xlib_cell.c b/src/gallium/winsys/xlib/xlib_cell.c
index 1dc9e8fa11f..ce4efe88510 100644
--- a/src/gallium/winsys/xlib/xlib_cell.c
+++ b/src/gallium/winsys/xlib/xlib_cell.c
@@ -32,98 +32,19 @@
  *   Brian Paul
  */
 
-#include "xlib.h"
-
-#ifdef GALLIUM_CELL
-
-#include "xm_api.h"
-
-#undef ASSERT
-#undef Elements
-
-#include "util/u_simple_screen.h"
-#include "pipe/p_format.h"
-#include "pipe/p_context.h"
-#include "util/u_inlines.h"
-#include "util/u_format.h"
-#include "util/u_math.h"
-#include "util/u_memory.h"
-
-#include "cell/ppu/cell_context.h"
-#include "cell/ppu/cell_screen.h"
-#include "cell/ppu/cell_winsys.h"
-#include "cell/ppu/cell_texture.h"
-
-
-/**
- * Subclass of pipe_buffer for Xlib winsys.
- * Low-level OS/window system memory buffer
- */
-struct xm_buffer
-{
-   struct pipe_buffer base;
-   boolean userBuffer;  /** Is this a user-space buffer? */
-   void *data;
-   void *mapped;
-   
-   XImage *tempImage;
-   int shm;
-};
 
 
-/**
- * Subclass of pipe_winsys for Xlib winsys
- */
-struct xmesa_pipe_winsys
-{
-   struct pipe_winsys base;
-};
-
-
-
-/** Cast wrapper */
-static INLINE struct xm_buffer *
-xm_buffer( struct pipe_buffer *buf )
-{
-   return (struct xm_buffer *)buf;
-}
 
+#include "xlib.h"
 
-/* Most callbacks map direcly onto dri_bufmgr operations:
- */
-static void *
-xm_buffer_map(struct pipe_winsys *pws, struct pipe_buffer *buf,
-              unsigned flags)
-{
-   struct xm_buffer *xm_buf = xm_buffer(buf);
-   xm_buf->mapped = xm_buf->data;
-   return xm_buf->mapped;
-}
-
-static void
-xm_buffer_unmap(struct pipe_winsys *pws, struct pipe_buffer *buf)
-{
-   struct xm_buffer *xm_buf = xm_buffer(buf);
-   xm_buf->mapped = NULL;
-}
 
-static void
-xm_buffer_destroy(/*struct pipe_winsys *pws,*/
-                  struct pipe_buffer *buf)
-{
-   struct xm_buffer *oldBuf = xm_buffer(buf);
+#if defined(GALLIUM_CELL)
 
-   if (oldBuf) {
-      if (oldBuf->data) {
-         if (!oldBuf->userBuffer) {
-            align_free(oldBuf->data);
-         }
+#include "cell/ppu/cell_texture.h"
+#include "cell/ppu/cell_screen.h"
+#include "state_tracker/sw_winsys.h"
+#include "util/u_debug.h"
 
-         oldBuf->data = NULL;
-      }
-      free(oldBuf);
-   }
-}
 
 
 /**
@@ -155,15 +76,16 @@ twiddle_tile(const uint *tileIn, uint *tileOut)
    }
 }
 
-
-
 /**
  * Display a surface that's in a tiled configuration.  That is, all the
  * pixels for a TILE_SIZExTILE_SIZE block are contiguous in memory.
  */
 static void
-xlib_cell_display_surface(struct xmesa_buffer *b, struct pipe_surface *surf)
+xm_displaytarget_display(struct sw_winsys *ws,
+                         struct sw_displaytarget *dt,
+                         void *winsys_drawable)
 {
+   struct xmesa_buffer *xm_buffer = (struct xm_drawable *)winsys_drawable;
    XImage *ximage;
    struct xm_buffer *xm_buf = xm_buffer(
       cell_texture(surf->texture)->buffer);
@@ -210,165 +132,21 @@ xlib_cell_display_surface(struct xmesa_buffer *b, struct pipe_surface *surf)
 
 
 
-
-
-static void
-xm_flush_frontbuffer(struct pipe_winsys *pws,
-                     struct pipe_surface *surf,
-                     void *context_private)
-{
-   /*
-    * The front color buffer is actually just another XImage buffer.
-    * This function copies that XImage to the actual X Window.
-    */
-   XMesaContext xmctx = (XMesaContext) context_private;
-   if (xmctx)
-      xlib_cell_display_surface(xmctx->xm_buffer, surf);
-}
-
-
-
-static const char *
-xm_get_name(struct pipe_winsys *pws)
-{
-   return "Xlib/Cell";
-}
-
-
-static struct pipe_buffer *
-xm_buffer_create(struct pipe_winsys *pws, 
-                 unsigned alignment, 
-                 unsigned usage,
-                 unsigned size)
-{
-   struct xm_buffer *buffer = CALLOC_STRUCT(xm_buffer);
-
-   pipe_reference_init(&buffer->base.reference, 1);
-   buffer->base.alignment = alignment;
-   buffer->base.usage = usage;
-   buffer->base.size = size;
-
-
-   if (buffer->data == NULL) {
-      buffer->shm = 0;
-
-      /* align to 16-byte multiple for Cell */
-      buffer->data = align_malloc(size, max(alignment, 16));
-   }
-
-   return &buffer->base;
-}
-
-
-/**
- * Create buffer which wraps user-space data.
- */
-static struct pipe_buffer *
-xm_user_buffer_create(struct pipe_winsys *pws, void *ptr, unsigned bytes)
-{
-   struct xm_buffer *buffer = CALLOC_STRUCT(xm_buffer);
-   pipe_reference_init(&buffer->base.reference, 1);
-   buffer->base.size = bytes;
-   buffer->userBuffer = TRUE;
-   buffer->data = ptr;
-   buffer->shm = 0;
-
-   return &buffer->base;
-}
-
-
-
-static struct pipe_buffer *
-xm_surface_buffer_create(struct pipe_winsys *winsys,
-                         unsigned width, unsigned height,
-                         enum pipe_format format,
-                         unsigned usage,
-                         unsigned tex_usage,
-                         unsigned *stride)
-{
-   const unsigned alignment = 64;
-   unsigned nblocksy;
-
-   nblocksy = util_format_get_nblocksy(format, height);
-   *stride = align(util_format_get_stride(format, width), alignment);
-
-   return winsys->buffer_create(winsys, alignment,
-                                usage,
-                                /* XXX a bit of a hack */
-                                *stride * align(nblocksy, TILE_SIZE));
-}
-
-
-/*
- * Fence functions - basically nothing to do, as we don't create any actual
- * fence objects.
- */
-
-static void
-xm_fence_reference(struct pipe_winsys *sws, struct pipe_fence_handle **ptr,
-                   struct pipe_fence_handle *fence)
-{
-}
-
-
-static int
-xm_fence_signalled(struct pipe_winsys *sws, struct pipe_fence_handle *fence,
-                   unsigned flag)
-{
-   return 0;
-}
-
-
-static int
-xm_fence_finish(struct pipe_winsys *sws, struct pipe_fence_handle *fence,
-                unsigned flag)
-{
-   return 0;
-}
-
-
-
-static struct pipe_winsys *
-xlib_create_cell_winsys( void )
-{
-   static struct xmesa_pipe_winsys *ws = NULL;
-
-   if (!ws) {
-      ws = CALLOC_STRUCT(xmesa_pipe_winsys);
-
-      /* Fill in this struct with callbacks that pipe will need to
-       * communicate with the window system, buffer manager, etc. 
-       */
-      ws->base.buffer_create = xm_buffer_create;
-      ws->base.user_buffer_create = xm_user_buffer_create;
-      ws->base.buffer_map = xm_buffer_map;
-      ws->base.buffer_unmap = xm_buffer_unmap;
-      ws->base.buffer_destroy = xm_buffer_destroy;
-
-      ws->base.surface_buffer_create = xm_surface_buffer_create;
-
-      ws->base.fence_reference = xm_fence_reference;
-      ws->base.fence_signalled = xm_fence_signalled;
-      ws->base.fence_finish = xm_fence_finish;
-
-      ws->base.flush_frontbuffer = xm_flush_frontbuffer;
-      ws->base.get_name = xm_get_name;
-   }
-
-   return &ws->base;
-}
-
-
 static struct pipe_screen *
-xlib_create_cell_screen( void )
+xlib_create_cell_screen( Display *dpy )
 {
-   struct pipe_winsys *winsys;
+   struct sw_winsys *winsys;
    struct pipe_screen *screen;
 
-   winsys = xlib_create_cell_winsys();
+   winsys = xlib_create_sw_winsys( dpy );
    if (winsys == NULL)
       return NULL;
 
+   /* Plug in a little cell-specific code:
+    */
+
+   ws->base.displaytarget_display = xm_cell_displaytarget_display;
+
    screen = cell_create_screen(winsys);
    if (screen == NULL)
       goto fail;
@@ -384,18 +162,12 @@ fail:
 
 
 
+
 struct xm_driver xlib_cell_driver = 
 {
    .create_pipe_screen = xlib_create_cell_screen,
-   .display_surface = xlib_cell_display_surface,
 };
 
-#else
 
-struct xm_driver xlib_cell_driver = 
-{
-   .create_pipe_screen = NULL,
-   .display_surface = NULL,
-};
 
-#endif
+#endif /* GALLIUM_CELL */