From bea9ed4dc6abbcf2b95f5f55554800d4f41da47a Mon Sep 17 00:00:00 2001
From: Jakob Bornecrantz <jakob@vmware.com>
Date: Tue, 19 Jan 2010 22:26:01 +0100
Subject: svga: Do a more propper creation of textures from handles

---
 .../winsys/drm/vmware/core/vmw_screen_dri.c        | 68 ++++++----------------
 1 file changed, 19 insertions(+), 49 deletions(-)

(limited to 'src/gallium/winsys/drm')

diff --git a/src/gallium/winsys/drm/vmware/core/vmw_screen_dri.c b/src/gallium/winsys/drm/vmware/core/vmw_screen_dri.c
index dbbe1701f1..60491cb519 100644
--- a/src/gallium/winsys/drm/vmware/core/vmw_screen_dri.c
+++ b/src/gallium/winsys/drm/vmware/core/vmw_screen_dri.c
@@ -237,22 +237,19 @@ vmw_dri1_present_locked(struct pipe_context *locked_pipe,
    vmw_svga_winsys_surface_reference(&vsrf, NULL);
 }
 
-/**
- * FIXME: We'd probably want to cache these buffers in the
- * screen, based on handle.
- */
-
-static struct pipe_buffer *
-vmw_drm_buffer_from_handle(struct drm_api *drm_api,
-                           struct pipe_screen *screen,
-			   const char *name,
-			   unsigned handle)
+static struct pipe_texture *
+vmw_drm_texture_from_handle(struct drm_api *drm_api,
+			    struct pipe_screen *screen,
+			    struct pipe_texture *templat,
+			    const char *name,
+			    unsigned stride,
+			    unsigned handle)
 {
     struct vmw_svga_winsys_surface *vsrf;
     struct svga_winsys_surface *ssrf;
     struct vmw_winsys_screen *vws =
 	vmw_winsys_screen(svga_winsys_screen(screen));
-    struct pipe_buffer *buf;
+    struct pipe_texture *tex;
     union drm_vmw_surface_reference_arg arg;
     struct drm_vmw_surface_arg *req = &arg.req;
     struct drm_vmw_surface_create_req *rep = &arg.rep;
@@ -299,43 +296,28 @@ vmw_drm_buffer_from_handle(struct drm_api *drm_api,
 
     pipe_reference_init(&vsrf->refcnt, 1);
     p_atomic_set(&vsrf->validated, 0);
+    vsrf->screen = vws;
     vsrf->sid = handle;
     ssrf = svga_winsys_surface(vsrf);
-    buf = svga_screen_buffer_wrap_surface(screen, rep->format, ssrf);
-    if (!buf)
+    tex = svga_screen_texture_wrap_surface(screen, templat, rep->format, ssrf);
+    if (!tex)
 	vmw_svga_winsys_surface_reference(&vsrf, NULL);
 
-    return buf;
+    return tex;
   out_mip:
     vmw_ioctl_surface_destroy(vws, handle);
     return NULL;
 }
 
-static struct pipe_texture *
-vmw_drm_texture_from_handle(struct drm_api *drm_api,
-			    struct pipe_screen *screen,
-			    struct pipe_texture *templat,
-			    const char *name,
-			    unsigned stride,
-			    unsigned handle)
-{
-    struct pipe_buffer *buffer;
-    buffer = vmw_drm_buffer_from_handle(drm_api, screen, name, handle);
-
-    if (!buffer)
-	return NULL;
-
-    return screen->texture_blanket(screen, templat, &stride, buffer);
-}
-
 static boolean
-vmw_drm_handle_from_buffer(struct drm_api *drm_api,
+vmw_drm_handle_from_texture(struct drm_api *drm_api,
                            struct pipe_screen *screen,
-			   struct pipe_buffer *buffer,
+			   struct pipe_texture *texture,
+			   unsigned *stride,
 			   unsigned *handle)
 {
     struct svga_winsys_surface *surface =
-	svga_screen_buffer_get_winsys_surface(buffer);
+	svga_screen_texture_get_winsys_surface(texture);
     struct vmw_svga_winsys_surface *vsrf;
 
     if (!surface)
@@ -343,25 +325,13 @@ vmw_drm_handle_from_buffer(struct drm_api *drm_api,
 
     vsrf = vmw_svga_winsys_surface(surface);
     *handle = vsrf->sid;
+    *stride = pf_get_nblocksx(&texture->block, texture->width[0]) *
+	texture->block.size;
+
     vmw_svga_winsys_surface_reference(&vsrf, NULL);
     return TRUE;
 }
 
-static boolean
-vmw_drm_handle_from_texture(struct drm_api *drm_api,
-			    struct pipe_screen *screen,
-			    struct pipe_texture *texture,
-			    unsigned *stride,
-			    unsigned *handle)
-{
-    struct pipe_buffer *buffer;
-
-    if (!svga_screen_buffer_from_texture(texture, &buffer, stride))
-	return FALSE;
-
-    return vmw_drm_handle_from_buffer(drm_api, screen, buffer, handle);
-}
-
 static struct pipe_context*
 vmw_drm_create_context(struct drm_api *drm_api,
                        struct pipe_screen *screen)
-- 
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