1 files changed, 101 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/radeon/radeon_mipmap_tree.h b/src/mesa/drivers/dri/radeon/radeon_mipmap_tree.h
new file mode 100644
index 0000000000..db28252da3
--- /dev/null
+++ b/src/mesa/drivers/dri/radeon/radeon_mipmap_tree.h
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2008 Nicolai Haehnle.
+ *
+ * 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, sublicense, 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 NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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.
+ *
+ */
+
+#ifndef __RADEON_MIPMAP_TREE_H_
+#define __RADEON_MIPMAP_TREE_H_
+
+#include "radeon_common.h"
+
+typedef struct _radeon_mipmap_tree radeon_mipmap_tree;
+typedef struct _radeon_mipmap_level radeon_mipmap_level;
+typedef struct _radeon_mipmap_image radeon_mipmap_image;
+
+struct _radeon_mipmap_image {
+	GLuint offset; /** Offset of this image from the start of mipmap tree buffer, in bytes */
+};
+
+struct _radeon_mipmap_level {
+	GLuint width;
+	GLuint height;
+	GLuint depth;
+	GLuint size; /** Size of each image, in bytes */
+	GLuint rowstride; /** in bytes */
+	radeon_mipmap_image faces[6];
+};
+
+/* store the max possible in the miptree */
+#define RADEON_MIPTREE_MAX_TEXTURE_LEVELS 13
+
+/**
+ * A mipmap tree contains texture images in the layout that the hardware
+ * expects.
+ *
+ * The meta-data of mipmap trees is immutable, i.e. you cannot change the
+ * layout on-the-fly; however, the texture contents (i.e. texels) can be
+ * changed.
+ */
+struct _radeon_mipmap_tree {
+	radeonContextPtr radeon;
+	radeonTexObj *t;
+	struct radeon_bo *bo;
+	GLuint refcount;
+
+	GLuint totalsize; /** total size of the miptree, in bytes */
+
+	GLenum target; /** GL_TEXTURE_xxx */
+	GLenum internal_format;
+	GLuint faces; /** # of faces: 6 for cubemaps, 1 otherwise */
+	GLuint firstLevel; /** First mip level stored in this mipmap tree */
+	GLuint lastLevel; /** Last mip level stored in this mipmap tree */
+
+	GLuint width0; /** Width of firstLevel image */
+	GLuint height0; /** Height of firstLevel image */
+	GLuint depth0; /** Depth of firstLevel image */
+
+	GLuint bpp; /** Bytes per texel */
+	GLuint tilebits; /** RADEON_TXO_xxx_TILE */
+	GLuint compressed; /** MESA_FORMAT_xxx indicating a compressed format, or 0 if uncompressed */
+
+	radeon_mipmap_level levels[RADEON_MIPTREE_MAX_TEXTURE_LEVELS];
+};
+
+radeon_mipmap_tree* radeon_miptree_create(radeonContextPtr rmesa, radeonTexObj *t,
+		GLenum target, GLenum internal_format, GLuint firstLevel, GLuint lastLevel,
+		GLuint width0, GLuint height0, GLuint depth0,
+		GLuint bpp, GLuint tilebits, GLuint compressed);
+void radeon_miptree_reference(radeon_mipmap_tree *mt);
+void radeon_miptree_unreference(radeon_mipmap_tree *mt);
+
+GLboolean radeon_miptree_matches_image(radeon_mipmap_tree *mt,
+		struct gl_texture_image *texImage, GLuint face, GLuint level);
+GLboolean radeon_miptree_matches_texture(radeon_mipmap_tree *mt, struct gl_texture_object *texObj);
+void radeon_try_alloc_miptree(radeonContextPtr rmesa, radeonTexObj *t,
+			      radeon_texture_image *texImage, GLuint face, GLuint level);
+GLuint radeon_miptree_image_offset(radeon_mipmap_tree *mt,
+				   GLuint face, GLuint level);
+void radeon_miptree_depth_offsets(radeon_mipmap_tree *mt, GLuint level, GLuint *offsets);
+#endif /* __RADEON_MIPMAP_TREE_H_ */