1 files changed, 156 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/python/p_texture.i b/src/gallium/state_trackers/python/p_texture.i
new file mode 100644
index 0000000000..ae506944c4
--- /dev/null
+++ b/src/gallium/state_trackers/python/p_texture.i
@@ -0,0 +1,156 @@
+ /**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+/**
+ * @file
+ * SWIG interface definion for Gallium types.
+ *
+ * @author Jose Fonseca <jrfonseca@tungstengraphics.com>
+ */
+
+
+%nodefaultctor pipe_resource;
+%nodefaultctor st_surface;
+
+%nodefaultdtor pipe_resource;
+%nodefaultdtor st_surface;
+
+%ignore pipe_resource::screen;
+
+%immutable st_surface::texture;
+%immutable st_surface::face;
+%immutable st_surface::level;
+%immutable st_surface::zslice;
+
+%newobject pipe_resource::get_surface;
+
+/* Avoid naming conflict with p_inlines.h's pipe_buffer_read/write */ 
+%rename(read) read_; 
+%rename(write) write_; 
+
+%extend pipe_resource {
+
+   ~pipe_resource() {
+      struct pipe_resource *ptr = $self;
+      pipe_resource_reference(&ptr, NULL);
+   }
+
+   unsigned get_width(unsigned level=0) {
+      return u_minify($self->width0, level);
+   }
+
+   unsigned get_height(unsigned level=0) {
+      return u_minify($self->height0, level);
+   }
+
+   unsigned get_depth(unsigned level=0) {
+      return u_minify($self->depth0, level);
+   }
+
+   /** Get a surface which is a "view" into a texture */
+   struct st_surface *
+   get_surface(unsigned face=0, unsigned level=0, unsigned zslice=0)
+   {
+      struct st_surface *surface;
+
+      if(face >= ($self->target == PIPE_TEXTURE_CUBE ? 6U : 1U))
+         SWIG_exception(SWIG_ValueError, "face out of bounds");
+      if(level > $self->last_level)
+         SWIG_exception(SWIG_ValueError, "level out of bounds");
+      if(zslice >= u_minify($self->depth0, level))
+         SWIG_exception(SWIG_ValueError, "zslice out of bounds");
+
+      surface = CALLOC_STRUCT(st_surface);
+      if(!surface)
+         return NULL;
+
+      pipe_resource_reference(&surface->texture, $self);
+      surface->face = face;
+      surface->level = level;
+      surface->zslice = zslice;
+
+      return surface;
+
+   fail:
+      return NULL;
+   }
+
+   unsigned __len__(void) 
+   {
+      assert($self->target == PIPE_BUFFER);
+      assert(p_atomic_read(&$self->reference.count) > 0);
+      return $self->width0;
+   }
+
+};
+
+struct st_surface
+{
+   %immutable;
+
+   struct pipe_resource *texture;
+   unsigned face;
+   unsigned level;
+   unsigned zslice;
+
+};
+
+%extend st_surface {
+
+   %immutable;
+
+   unsigned format;
+   unsigned width;
+   unsigned height;
+
+   ~st_surface() {
+      pipe_resource_reference(&$self->texture, NULL);
+      FREE($self);
+   }
+
+
+};
+
+%{
+   static enum pipe_format
+   st_surface_format_get(struct st_surface *surface)
+   {
+      return surface->texture->format;
+   }
+   
+   static unsigned
+   st_surface_width_get(struct st_surface *surface)
+   {
+      return u_minify(surface->texture->width0, surface->level);
+   }
+   
+   static unsigned
+   st_surface_height_get(struct st_surface *surface)
+   {
+      return u_minify(surface->texture->height0, surface->level);
+   }
+%}