Mesa (master): i915g: return tiling in iws->buffer_from_handle

[Jakob Bornecrantz]

Module: Mesa
Branch: master
Commit: 2ff0879a6365e7f7d7e5277274bc965ad57a82b4
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=2ff0879a6365e7f7d7e5277274bc965ad57a82b4

Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Sun Nov 21 20:25:33 2010 +0100

i915g: return tiling in iws->buffer_from_handle

This is needed to properly implement tiling flags. And the gem
implemention fo buffer_from_handle already calls get_tiling, so
it's for free.

Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
Reviewed-by: Jakob Bornecrantz <wallbraker at gmail.com>
Signed-off-by: Jakob Bornecrantz <wallbraker at gmail.com>

---

 src/gallium/drivers/i915/i915_resource_texture.c |    4 +++-
 src/gallium/drivers/i915/i915_winsys.h           |    2 ++
 src/gallium/winsys/i915/drm/i915_drm_buffer.c    |    6 ++++--
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/gallium/drivers/i915/i915_resource_texture.c b/src/gallium/drivers/i915/i915_resource_texture.c
index ce95e26..ae34477 100644
--- a/src/gallium/drivers/i915/i915_resource_texture.c
+++ b/src/gallium/drivers/i915/i915_resource_texture.c
@@ -812,10 +812,11 @@ i915_texture_from_handle(struct pipe_screen * screen,
    struct i915_winsys *iws = is->iws;
    struct i915_winsys_buffer *buffer;
    unsigned stride;
+   enum i915_winsys_buffer_tile tiling;
 
    assert(screen);
 
-   buffer = iws->buffer_from_handle(iws, whandle, &stride);
+   buffer = iws->buffer_from_handle(iws, whandle, &tiling, &stride);
 
    /* Only supports one type */
    if ((template->target != PIPE_TEXTURE_2D &&
@@ -835,6 +836,7 @@ i915_texture_from_handle(struct pipe_screen * screen,
    tex->b.b.screen = screen;
 
    tex->stride = stride;
+   tex->tiling = tiling;
    tex->total_nblocksy = align_nblocksy(tex->b.b.format, tex->b.b.height0, 8);
 
    i915_texture_set_level_info(tex, 0, 1);
diff --git a/src/gallium/drivers/i915/i915_winsys.h b/src/gallium/drivers/i915/i915_winsys.h
index ddf8a90..24ea416 100644
--- a/src/gallium/drivers/i915/i915_winsys.h
+++ b/src/gallium/drivers/i915/i915_winsys.h
@@ -53,6 +53,7 @@ enum i915_winsys_buffer_type
    I915_NEW_VERTEX
 };
 
+/* These need to be in sync with the definitions of libdrm-intel! */
 enum i915_winsys_buffer_tile
 {
    I915_TILE_NONE,
@@ -156,6 +157,7 @@ struct i915_winsys {
    struct i915_winsys_buffer *
       (*buffer_from_handle)(struct i915_winsys *iws,
                             struct winsys_handle *whandle,
+                            enum i915_winsys_buffer_tile *tiling,
                             unsigned *stride);
 
    /**
diff --git a/src/gallium/winsys/i915/drm/i915_drm_buffer.c b/src/gallium/winsys/i915/drm/i915_drm_buffer.c
index 70f55fc..01dd4bf 100644
--- a/src/gallium/winsys/i915/drm/i915_drm_buffer.c
+++ b/src/gallium/winsys/i915/drm/i915_drm_buffer.c
@@ -90,8 +90,9 @@ err:
 
 static struct i915_winsys_buffer *
 i915_drm_buffer_from_handle(struct i915_winsys *iws,
-                             struct winsys_handle *whandle,
-                             unsigned *stride)
+                            struct winsys_handle *whandle,
+                            enum i915_winsys_buffer_tile *tiling,
+                            unsigned *stride)
 {
    struct i915_drm_winsys *idws = i915_drm_winsys(iws);
    struct i915_drm_buffer *buf = CALLOC_STRUCT(i915_drm_buffer);
@@ -111,6 +112,7 @@ i915_drm_buffer_from_handle(struct i915_winsys *iws,
    drm_intel_bo_get_tiling(buf->bo, &tile, &swizzle);
 
    *stride = whandle->stride;
+   *tiling = tile;
 
    return (struct i915_winsys_buffer *)buf;