Merge commit 'origin/master' into gallium-sw-api-2

Conflicts:
	src/gallium/drivers/llvmpipe/lp_setup.c
	src/gallium/drivers/softpipe/sp_texture.c
	src/gallium/drivers/softpipe/sp_winsys.h
	src/gallium/state_trackers/egl/common/egl_g3d.c
	src/gallium/state_trackers/egl/x11/native_x11.c
	src/gallium/state_trackers/egl/x11/native_x11.h
	src/gallium/state_trackers/egl/x11/native_ximage.c

4 files changed, 69 insertions, 99 deletions

diff --git a/src/gallium/drivers/i915/i915_context.h b/src/gallium/drivers/i915/i915_context.h
index da769e7b290..499a727314d 100644
--- a/src/gallium/drivers/i915/i915_context.h
+++ b/src/gallium/drivers/i915/i915_context.h
@@ -187,6 +187,9 @@ struct i915_sampler_state {
    unsigned maxlod;
 };
 
+#define I915_MAX_TEXTURE_2D_LEVELS 11  /* max 1024x1024 */
+#define I915_MAX_TEXTURE_3D_LEVELS  8  /* max 128x128x128 */
+
 struct i915_texture {
    struct pipe_texture base;
 
@@ -199,7 +202,7 @@ struct i915_texture {
    unsigned sw_tiled; /**< tiled with software flags */
    unsigned hw_tiled; /**< tiled with hardware fences */
 
-   unsigned nr_images[PIPE_MAX_TEXTURE_LEVELS];
+   unsigned nr_images[I915_MAX_TEXTURE_2D_LEVELS];
 
    /* Explicitly store the offset of each image for each cube face or
     * depth value.  Pretty much have to accept that hardware formats
@@ -207,7 +210,7 @@ struct i915_texture {
     * compute the offsets of depth/cube images within a mipmap level,
     * so have to store them as a lookup table:
     */
-   unsigned *image_offset[PIPE_MAX_TEXTURE_LEVELS];   /**< array [depth] of offsets */
+   unsigned *image_offset[I915_MAX_TEXTURE_2D_LEVELS];   /**< array [depth] of offsets */
 
    /* The data is held here:
     */
diff --git a/src/gallium/drivers/i915/i915_screen.c b/src/gallium/drivers/i915/i915_screen.c
index 72bd2635506..e5bf4a20bd0 100644
--- a/src/gallium/drivers/i915/i915_screen.c
+++ b/src/gallium/drivers/i915/i915_screen.c
@@ -116,11 +116,11 @@ i915_get_param(struct pipe_screen *screen, int param)
    case PIPE_CAP_TEXTURE_SHADOW_MAP:
       return 1;
    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
-      return 11; /* max 1024x1024 */
+      return I915_MAX_TEXTURE_2D_LEVELS;
    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
-      return 8;  /* max 128x128x128 */
+      return I915_MAX_TEXTURE_3D_LEVELS;
    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
-      return 11; /* max 1024x1024 */
+      return I915_MAX_TEXTURE_2D_LEVELS;
    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
       return 1;
diff --git a/src/gallium/drivers/i915/i915_texture.c b/src/gallium/drivers/i915/i915_texture.c
index 7ba222c78b7..3ce52cdcdbd 100644
--- a/src/gallium/drivers/i915/i915_texture.c
+++ b/src/gallium/drivers/i915/i915_texture.c
@@ -96,7 +96,7 @@ i915_miptree_set_level_info(struct i915_texture *tex,
                              unsigned nr_images,
                              unsigned w, unsigned h, unsigned d)
 {
-   assert(level < PIPE_MAX_TEXTURE_LEVELS);
+   assert(level < Elements(tex->nr_images));
 
    tex->nr_images[level] = nr_images;
 
@@ -219,12 +219,12 @@ i915_miptree_layout_2d(struct i915_texture *tex)
    unsigned nblocksy = util_format_get_nblocksy(pt->format, pt->width0);
 
    /* used for scanouts that need special layouts */
-   if (pt->tex_usage & PIPE_TEXTURE_USAGE_PRIMARY)
+   if (pt->tex_usage & PIPE_TEXTURE_USAGE_SCANOUT)
       if (i915_scanout_layout(tex))
          return;
 
-   /* for shared buffers we use something very like scanout */
-   if (pt->tex_usage & PIPE_TEXTURE_USAGE_DISPLAY_TARGET)
+   /* shared buffers needs to be compatible with X servers */
+   if (pt->tex_usage & PIPE_TEXTURE_USAGE_SHARED)
       if (i915_display_target_layout(tex))
          return;
 
@@ -369,12 +369,12 @@ i945_miptree_layout_2d(struct i915_texture *tex)
    unsigned nblocksy = util_format_get_nblocksy(pt->format, pt->height0);
 
    /* used for scanouts that need special layouts */
-   if (tex->base.tex_usage & PIPE_TEXTURE_USAGE_PRIMARY)
+   if (tex->base.tex_usage & PIPE_TEXTURE_USAGE_SCANOUT)
       if (i915_scanout_layout(tex))
          return;
 
-   /* for shared buffers we use some very like scanout */
-   if (tex->base.tex_usage & PIPE_TEXTURE_USAGE_DISPLAY_TARGET)
+   /* shared buffers needs to be compatible with X servers */
+   if (tex->base.tex_usage & PIPE_TEXTURE_USAGE_SHARED)
       if (i915_display_target_layout(tex))
          return;
 
@@ -642,7 +642,7 @@ i915_texture_create(struct pipe_screen *screen,
 
 
    /* for scanouts and cursors, cursors arn't scanouts */
-   if (templat->tex_usage & PIPE_TEXTURE_USAGE_PRIMARY && templat->width0 != 64)
+   if (templat->tex_usage & PIPE_TEXTURE_USAGE_SCANOUT && templat->width0 != 64)
       buf_usage = INTEL_NEW_SCANOUT;
    else
       buf_usage = INTEL_NEW_TEXTURE;
@@ -673,19 +673,24 @@ fail:
 }
 
 static struct pipe_texture *
-i915_texture_blanket(struct pipe_screen * screen,
-                     const struct pipe_texture *base,
-                     const unsigned *stride,
-                     struct pipe_buffer *buffer)
+i915_texture_from_handle(struct pipe_screen * screen,
+                         const struct pipe_texture *templat,
+                         struct winsys_handle *whandle)
 {
-#if 0
+   struct i915_screen *is = i915_screen(screen);
    struct i915_texture *tex;
+   struct intel_winsys *iws = is->iws;
+   struct intel_buffer *buffer;
+   unsigned stride;
+
    assert(screen);
 
+   buffer = iws->buffer_from_handle(iws, whandle, &stride);
+
    /* Only supports one type */
-   if (base->target != PIPE_TEXTURE_2D ||
-       base->last_level != 0 ||
-       base->depth0 != 1) {
+   if (templat->target != PIPE_TEXTURE_2D ||
+       templat->last_level != 0 ||
+       templat->depth0 != 1) {
       return NULL;
    }
 
@@ -693,23 +698,33 @@ i915_texture_blanket(struct pipe_screen * screen,
    if (!tex)
       return NULL;
 
-   tex->base = *base;
+   tex->base = *templat;
    pipe_reference_init(&tex->base.reference, 1);
    tex->base.screen = screen;
 
-   tex->stride = stride[0];
+   tex->stride = stride;
 
-   i915_miptree_set_level_info(tex, 0, 1, base->width0, base->height0, 1);
+   i915_miptree_set_level_info(tex, 0, 1, templat->width0, templat->height0, 1);
    i915_miptree_set_image_offset(tex, 0, 0, 0, 0);
 
-   pipe_buffer_reference(&tex->buffer, buffer);
+   tex->buffer = buffer;
 
    return &tex->base;
-#else
-   return NULL;
-#endif
 }
 
+static boolean
+i915_texture_get_handle(struct pipe_screen * screen,
+                        struct pipe_texture *texture,
+                        struct winsys_handle *whandle)
+{
+   struct i915_screen *is = i915_screen(screen);
+   struct i915_texture *tex = (struct i915_texture *)texture;
+   struct intel_winsys *iws = is->iws;
+
+   return iws->buffer_get_handle(iws, tex->buffer, whandle, tex->stride);
+}
+
+
 static void
 i915_texture_destroy(struct pipe_texture *pt)
 {
@@ -723,7 +738,7 @@ i915_texture_destroy(struct pipe_texture *pt)
 
    iws->buffer_destroy(iws, tex->buffer);
 
-   for (i = 0; i < PIPE_MAX_TEXTURE_LEVELS; i++)
+   for (i = 0; i < Elements(tex->image_offset); i++)
       if (tex->image_offset[i])
          FREE(tex->image_offset[i]);
 
@@ -869,7 +884,8 @@ void
 i915_init_screen_texture_functions(struct i915_screen *is)
 {
    is->base.texture_create = i915_texture_create;
-   is->base.texture_blanket = i915_texture_blanket;
+   is->base.texture_from_handle = i915_texture_from_handle;
+   is->base.texture_get_handle = i915_texture_get_handle;
    is->base.texture_destroy = i915_texture_destroy;
    is->base.get_tex_surface = i915_get_tex_surface;
    is->base.tex_surface_destroy = i915_tex_surface_destroy;
@@ -878,53 +894,3 @@ i915_init_screen_texture_functions(struct i915_screen *is)
    is->base.transfer_unmap = i915_transfer_unmap;
    is->base.tex_transfer_destroy = i915_tex_transfer_destroy;
 }
-
-struct pipe_texture *
-i915_texture_blanket_intel(struct pipe_screen *screen,
-                           struct pipe_texture *base,
-                           unsigned stride,
-                           struct intel_buffer *buffer)
-{
-   struct i915_texture *tex;
-   assert(screen);
-
-   /* Only supports one type */
-   if (base->target != PIPE_TEXTURE_2D ||
-       base->last_level != 0 ||
-       base->depth0 != 1) {
-      return NULL;
-   }
-
-   tex = CALLOC_STRUCT(i915_texture);
-   if (!tex)
-      return NULL;
-
-   tex->base = *base;
-   pipe_reference_init(&tex->base.reference, 1);
-   tex->base.screen = screen;
-
-   tex->stride = stride;
-
-   i915_miptree_set_level_info(tex, 0, 1, base->width0, base->height0, 1);
-   i915_miptree_set_image_offset(tex, 0, 0, 0, 0);
-
-   tex->buffer = buffer;
-
-   return &tex->base;
-}
-
-boolean
-i915_get_texture_buffer_intel(struct pipe_texture *texture,
-                              struct intel_buffer **buffer,
-                              unsigned *stride)
-{
-   struct i915_texture *tex = (struct i915_texture *)texture;
-
-   if (!texture)
-      return FALSE;
-
-   *stride = tex->stride;
-   *buffer = tex->buffer;
-
-   return TRUE;
-}
diff --git a/src/gallium/drivers/i915/intel_winsys.h b/src/gallium/drivers/i915/intel_winsys.h
index b3a802b0e29..00fd0c1efea 100644
--- a/src/gallium/drivers/i915/intel_winsys.h
+++ b/src/gallium/drivers/i915/intel_winsys.h
@@ -33,6 +33,7 @@ struct intel_buffer;
 struct intel_batchbuffer;
 struct pipe_texture;
 struct pipe_fence_handle;
+struct winsys_handle;
 
 enum intel_buffer_usage
 {
@@ -129,6 +130,25 @@ struct intel_winsys {
                                          enum intel_buffer_type type);
 
    /**
+    * Creates a buffer from a handle.
+    * Used to implement pipe_screen::texture_from_handle.
+    * Also provides the stride information needed for the
+    * texture via the stride argument.
+    */
+   struct intel_buffer *(*buffer_from_handle)(struct intel_winsys *iws,
+                                              struct winsys_handle *whandle,
+                                              unsigned *stride);
+
+   /**
+    * Used to implement pipe_screen::texture_get_handle.
+    * The winsys might need the stride information.
+    */
+   boolean (*buffer_get_handle)(struct intel_winsys *iws,
+                                struct intel_buffer *buffer,
+                                struct winsys_handle *whandle,
+                                unsigned stride);
+
+   /**
     * Fence a buffer with a fence reg.
     * Not to be confused with pipe_fence_handle.
     */
@@ -204,23 +224,4 @@ struct intel_winsys {
 struct pipe_screen *i915_create_screen(struct intel_winsys *iws, unsigned pci_id);
 
 
-/**
- * Get the intel_winsys buffer backing the texture.
- *
- * TODO UGLY
- */
-boolean i915_get_texture_buffer_intel(struct pipe_texture *texture,
-                                      struct intel_buffer **buffer,
-                                      unsigned *stride);
-
-/**
- * Wrap a intel_winsys buffer with a texture blanket.
- *
- * TODO UGLY
- */
-struct pipe_texture * i915_texture_blanket_intel(struct pipe_screen *screen,
-                                                 struct pipe_texture *tmplt,
-                                                 unsigned pitch,
-                                                 struct intel_buffer *buffer);
-
 #endif